add builder to RustyPipe

use VecLogError for player streams

.gitignore

@@ -1,4 +1,5 @@
 /target
 /Cargo.lock
 
-rusty-tube.json
+rustypipe_reports
+rustypipe_cache.json

Cargo.toml

@@ -3,10 +3,19 @@ name = "rustypipe"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [workspace]
-members = [".", "cli"]
+members = [".", "codegen", "cli"]
+
+[features]
+default = ["default-tls"]
+
+# Reqwest TLS
+default-tls = ["reqwest/default-tls"]
+rustls-tls-webpki-roots = ["reqwest/rustls-tls-webpki-roots"]
+rustls-tls-native-roots = ["reqwest/rustls-tls-native-roots"]
+
+# Error reports in yaml format
+report-yaml = ["serde_yaml"]
 
 [dependencies]
 # quick-js = "0.4.1"
@@ -17,13 +26,13 @@ anyhow = "1.0"
 thiserror = "1.0.31"
 url = "2.2.2"
 log = "0.4.17"
-reqwest = {version = "0.11.11", default-features = false, features = ["json", "gzip", "brotli", "stream", "rustls-tls-native-roots"]}
+reqwest = {version = "0.11.11", default-features = false, features = ["json", "gzip", "brotli", "stream"]}
-tokio = {version = "1.20.0", features = ["macros", "fs", "process"]}
+tokio = {version = "1.20.0", features = ["macros", "time", "fs", "process"]}
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.82"
+serde_yaml = {version = "0.9.11", optional = true}
 serde_with = {version = "2.0.0", features = ["json"] }
 rand = "0.8.5"
-async-trait = "0.1.56"
 chrono = {version = "0.4.19", features = ["serde"]}
 chronoutil = "0.2.3"
 futures = "0.3.21"
@@ -37,6 +46,5 @@ env_logger = "0.9.0"
 test-log = "0.2.11"
 rstest = "0.15.0"
 temp_testdir = "0.2.3"
-insta = {version = "1.17.1", features = ["redactions"]}
+insta = {version = "1.17.1", features = ["yaml", "redactions"]}
 velcro = "0.5.3"
-phf_codegen = "0.11.1"

cli/Cargo.toml

@@ -3,12 +3,10 @@ name = "rustypipe-cli"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
-rustypipe = {path = "../"}
+rustypipe = {path = "../", default_features = false, features = ["rustls-tls-native-roots"]}
-reqwest = {version = "0.11.11", default_features = false, features = ["gzip", "brotli", "rustls-tls-native-roots"]}
+reqwest = {version = "0.11.11", default_features = false}
-tokio = {version = "1.20.0", features = ["rt-multi-thread"]}
+tokio = {version = "1.20.0", features = ["macros", "rt-multi-thread"]}
 indicatif = "0.17.0"
 futures = "0.3.21"
 anyhow = "1.0"

cli/src/main.rs

@@ -6,7 +6,7 @@ use futures::stream::{self, StreamExt};
 use indicatif::{MultiProgress, ProgressBar, ProgressStyle};
 use reqwest::{Client, ClientBuilder};
 use rustypipe::{
-    client::{ClientType, RustyTube},
+    client::{ClientType, RustyPipe},
     model::stream_filter::Filter,
 };
 
@@ -46,7 +46,7 @@ async fn download_single_video(
     output_fname: Option<String>,
     resolution: Option<u32>,
     ffmpeg: &str,
-    rt: &RustyTube,
+    rp: &RustyPipe,
     http: Client,
     multi: MultiProgress,
     main: Option<ProgressBar>,
@@ -58,7 +58,8 @@ async fn download_single_video(
     pb.set_message(format!("Fetching player data for {}", video_title));
 
     let res = async {
-        let player_data = rt
+        let player_data = rp
+            .query()
             .get_player(video_id.as_str(), ClientType::TvHtml5Embed)
             .await
             .context(format!(
@@ -112,7 +113,7 @@ async fn download_video(
         .build()
         .expect("unable to build the HTTP client");
 
-    let rt = RustyTube::new();
+    let rp = RustyPipe::default();
 
     // Indicatif setup
     let multi = MultiProgress::new();
@@ -124,7 +125,7 @@ async fn download_video(
         output_fname,
         resolution,
         "ffmpeg",
-        &rt,
+        &rp,
         http,
         multi,
         None,
@@ -147,8 +148,8 @@ async fn download_playlist(
         .build()
         .expect("unable to build the HTTP client");
 
-    let rt = RustyTube::new();
+    let rp = RustyPipe::default();
-    let playlist = rt.get_playlist(id).await.unwrap();
+    let playlist = rp.query().get_playlist(id).await.unwrap();
 
     // Indicatif setup
     let multi = MultiProgress::new();
@@ -173,7 +174,7 @@ async fn download_playlist(
                 output_fname.to_owned(),
                 resolution,
                 "ffmpeg",
-                &rt,
+                &rp,
                 http.clone(),
                 multi.clone(),
                 Some(main.clone()),

codegen/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "rustypipe-codegen"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+rustypipe = {path = "../"}
+reqwest = "0.11.11"
+tokio = {version = "1.20.0", features = ["macros", "rt-multi-thread"]}
+futures = "0.3.21"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0.82"
+serde_with = "2.0.0"
+anyhow = "1.0"
+log = "0.4.17"
+env_logger = "0.9.0"
+clap = { version = "3.2.16", features = ["derive"] }
+phf_codegen = "0.11.1"
+once_cell = "1.12.0"
+fancy-regex = "0.10.0"

codegen/src/collect_playlist_dates.rs

@@ -1,5 +1,3 @@
-#![cfg(test)]
-
 use std::{
     collections::{BTreeMap, HashMap},
     fs::File,
@@ -8,14 +6,15 @@ use std::{
     path::Path,
 };
 
+use futures::{stream, StreamExt};
+use rustypipe::{
+    client::RustyPipe,
+    model::{locale::LANGUAGES, Language},
+    timeago::{self, TimeAgo},
+};
 use serde::{Deserialize, Serialize};
 
-use crate::{
+use crate::util;
-    client::RustyTube,
-    model::{locale::LANGUAGES, Country, Language},
-    timeago::{self, TimeAgo},
-    util,
-};
 
 type CollectedDates = BTreeMap<Language, BTreeMap<DateCase, String>>;
 
@@ -38,20 +37,40 @@ enum DateCase {
     Dec,
 }
 
-// #[test_log::test(tokio::test)]
+/// Collect 'Playlist updated' dates in every supported language
-async fn collect_dates() {
+/// and write them to `testfiles/date/playlist_samples.json`.
-    let json_path = Path::new("testfiles/date/playlist_samples.json").to_path_buf();
+///
-    if json_path.exists() {
+/// YouTube's API outputs the update date of playlists only in a
-        return;
+/// textual format (e.g. *Last updated on Jan 3, 2020*), which varies
-    }
+/// by language.
+///
+/// For recently updated playlists YouTube shows 'today', 'yesterday'
+/// and 'x<=7 days ago' instead of the literal date.
+///
+/// To parse these dates correctly we need to collect a sample set
+/// in every language.
+///
+/// This set includes
+/// - one playlist updated today
+/// - one playlist updated yesterday
+/// - one playlist updated 2-7 days ago
+/// - one playlist from every month. Note that there should not
+/// be any dates which include the same number twice (e.g. 01.01.2020).
+///
+/// Because the relative dates change with time, the first three playlists
+/// should be checked and eventually changed before running the program.
+pub async fn collect_dates(project_root: &Path, concurrency: usize) {
+    let mut json_path = project_root.to_path_buf();
+    json_path.push("testfiles/date/playlist_samples.json");
 
+    // These are the sample playlists
     let cases = [
         (
             DateCase::Today,
             "RDCLAK5uy_kj3rhiar1LINmyDcuFnXihEO0K1NQa2jI",
         ),
-        (DateCase::Yesterday, "PLmB6td997u3kUOrfFwkULZ910ho44oQSy"),
+        (DateCase::Yesterday, "PL7zsB-C3aNu2yRY2869T0zj1FhtRIu5am"),
-        (DateCase::Ago, "PL7zsB-C3aNu2yRY2869T0zj1FhtRIu5am"),
+        (DateCase::Ago, "PLmB6td997u3kUOrfFwkULZ910ho44oQSy"),
         (DateCase::Jan, "PL1J-6JOckZtFjcni6Xj1pLYglJp6JCpKD"),
         (DateCase::Feb, "PL1J-6JOckZtETrbzwZE7mRIIK6BzWNLAs"),
         (DateCase::Mar, "PL1J-6JOckZtG3AVdvBXhMO64mB2k3BtKi"),
@@ -66,31 +85,42 @@ async fn collect_dates() {
         (DateCase::Dec, "PL1J-6JOckZtHo91uApeb10Qlf2XhkfM-9"),
     ];
 
-    let mut collected_dates = CollectedDates::new();
+    let rp = RustyPipe::new();
+    let collected_dates = stream::iter(LANGUAGES)
+        .map(|lang| {
+            let rp = rp.clone();
+            async move {
+                let mut map: BTreeMap<DateCase, String> = BTreeMap::new();
 
-    for lang in LANGUAGES {
+                for (case, pl_id) in cases {
-        let rp = RustyTube::new_with_ua(lang, Country::Us, None);
+                    let playlist = rp.query().lang(lang).get_playlist(pl_id).await.unwrap();
-        let mut map: BTreeMap<DateCase, String> = BTreeMap::new();
+                    map.insert(case, playlist.last_update_txt.unwrap());
+                }
 
-        for (case, pl_id) in cases {
+                (lang, map)
-            let playlist = rp.get_playlist(pl_id).await.unwrap();
+            }
-            map.insert(case, playlist.last_update_txt.unwrap());
+        })
-        }
+        .buffer_unordered(concurrency)
-
+        .collect::<BTreeMap<_, _>>()
-        collected_dates.insert(lang, map);
+        .await;
-    }
 
     let file = File::create(json_path).unwrap();
     serde_json::to_writer_pretty(file, &collected_dates).unwrap();
 }
 
-// #[test]
+/// Attempt to parse the dates collected by `collect-playlist-dates`
-fn write_samples_to_dict() {
+/// and write the results to `dictionary.json`.
-    let json_path = Path::new("testfiles/date/playlist_samples.json").to_path_buf();
+///
+/// The ND (no digit) tokens (today, tomorrow) of some languages cannot be
+/// parsed automatically and require manual work.
+pub fn write_samples_to_dict(project_root: &Path) {
+    let mut json_path = project_root.to_path_buf();
+    json_path.push("testfiles/date/playlist_samples.json");
+
     let json_file = File::open(json_path).unwrap();
     let collected_dates: CollectedDates =
         serde_json::from_reader(BufReader::new(json_file)).unwrap();
-    let mut dict = super::read_dict();
+    let mut dict = util::read_dict(project_root);
     let langs = dict.keys().map(|k| k.to_owned()).collect::<Vec<_>>();
 
     let months = [
@@ -134,7 +164,9 @@ fn write_samples_to_dict() {
         let dict_entry = dict.entry(lang).or_default();
         let mut num_order = "".to_owned();
 
-        let collect_nd_tokens = match lang {
+        let collect_nd_tokens = !matches!(
+            lang,
+            // ND tokens of these languages must be edited manually
             Language::Ja
             | Language::ZhCn
             | Language::ZhHk
@@ -146,10 +178,9 @@ fn write_samples_to_dict() {
             | Language::Uz
             | Language::Te
             | Language::PtPt
-            // Singhalese YT translation is broken (today == tomorrow)
+            // Singhalese YT translation has an error (today == tomorrow)
-            | Language::Si => false,
+            | Language::Si
-            _ => true,
+        );
-        };
 
         dict_entry.months = BTreeMap::new();
 
@@ -164,7 +195,7 @@ fn write_samples_to_dict() {
             // Today/Yesterday
             {
                 let mut parse = |string: &str, n: i8| {
-                    timeago::filter_str(string)
+                    util::filter_datestr(string)
                         .split_whitespace()
                         .for_each(|word| {
                             td_words
@@ -183,7 +214,7 @@ fn write_samples_to_dict() {
             // n days ago
             {
                 let datestr = datestr_table.get(&DateCase::Ago).unwrap();
-                let tago = timeago::parse_timeago(lang, &datestr);
+                let tago = timeago::parse_timeago(lang, datestr);
                 assert_eq!(
                     tago,
                     Some(TimeAgo {
@@ -201,7 +232,7 @@ fn write_samples_to_dict() {
                 let datestr = datestr_table.get(m).unwrap();
 
                 // Get order of numbers
-                let nums = util::parse_numeric_vec::<u32>(&datestr);
+                let nums = util::parse_numeric_vec::<u32>(datestr);
                 let date = dates[n];
 
                 let this_num_order = nums
@@ -219,14 +250,14 @@ fn write_samples_to_dict() {
                     })
                     .collect::<String>();
 
-                if num_order == "" {
+                if num_order.is_empty() {
                     num_order = this_num_order;
                 } else {
                     assert_eq!(this_num_order, num_order, "lang: {}", lang);
                 }
 
                 // Insert words into the map
-                timeago::filter_str(&datestr)
+                util::filter_datestr(datestr)
                     .split_whitespace()
                     .for_each(|word| {
                         month_words
@@ -275,5 +306,5 @@ fn write_samples_to_dict() {
         dict_entry.date_order = num_order;
     }
 
-    super::write_dict(&dict);
+    util::write_dict(project_root, &dict);
 }

codegen/src/download_testfiles.rs

@@ -0,0 +1,120 @@
+use std::{
+    fs::File,
+    path::{Path, PathBuf},
+};
+
+use rustypipe::{
+    client::{ClientType, RustyPipe},
+    report::{Report, Reporter},
+};
+
+const CLIENT_TYPES: [ClientType; 5] = [
+    ClientType::Desktop,
+    ClientType::DesktopMusic,
+    ClientType::TvHtml5Embed,
+    ClientType::Android,
+    ClientType::Ios,
+];
+
+/// Store pretty-printed response json
+pub struct TestFileReporter {
+    path: PathBuf,
+}
+
+impl TestFileReporter {
+    pub fn new<P: AsRef<Path>>(path: P) -> Self {
+        Self {
+            path: path.as_ref().to_path_buf(),
+        }
+    }
+}
+
+impl Reporter for TestFileReporter {
+    fn report(&self, report: &Report) {
+        let data =
+            serde_json::from_str::<serde_json::Value>(&report.http_request.resp_body).unwrap();
+        let file = File::create(&self.path).unwrap();
+        serde_json::to_writer_pretty(file, &data).unwrap();
+
+        println!("Downloaded {}", self.path.display());
+    }
+}
+
+fn rp_testfile(json_path: &Path) -> RustyPipe {
+    let reporter = TestFileReporter::new(json_path);
+    RustyPipe::builder()
+        .reporter(Box::new(reporter))
+        .report()
+        .strict()
+        .build()
+}
+
+pub async fn download_testfiles(project_root: &Path) {
+    let mut testfiles = project_root.to_path_buf();
+    testfiles.push("testfiles");
+
+    tokio::join!(
+        player(&testfiles),
+        player_model(&testfiles),
+        playlist(&testfiles)
+    );
+}
+
+async fn player(testfiles: &Path) {
+    let video_id = "pPvd8UxmSbQ";
+
+    for client_type in CLIENT_TYPES {
+        let mut json_path = testfiles.to_path_buf();
+        json_path.push("player");
+        json_path.push(format!("{:?}_video.json", client_type).to_lowercase());
+
+        if json_path.exists() {
+            continue;
+        }
+
+        let rp = rp_testfile(&json_path);
+        rp.query().get_player(video_id, client_type).await.unwrap();
+    }
+}
+
+async fn player_model(testfiles: &Path) {
+    let rp = RustyPipe::builder().strict().build();
+
+    for (name, id) in [("multilanguage", "tVWWp1PqDus"), ("hdr", "LXb3EKWsInQ")] {
+        let mut json_path = testfiles.to_path_buf();
+        json_path.push("player_model");
+        json_path.push(format!("{}.json", name).to_lowercase());
+
+        if json_path.exists() {
+            continue;
+        }
+
+        let player_data = rp
+            .query()
+            .get_player(id, ClientType::Desktop)
+            .await
+            .unwrap();
+        let file = File::create(&json_path).unwrap();
+        serde_json::to_writer_pretty(file, &player_data).unwrap();
+
+        println!("Downloaded {}", json_path.display());
+    }
+}
+
+async fn playlist(testfiles: &Path) {
+    for (name, id) in [
+        ("short", "RDCLAK5uy_kFQXdnqMaQCVx2wpUM4ZfbsGCDibZtkJk"),
+        ("long", "PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ"),
+        ("nomusic", "PL1J-6JOckZtE_P9Xx8D3b2O6w0idhuKBe"),
+    ] {
+        let mut json_path = testfiles.to_path_buf();
+        json_path.push("playlist");
+        json_path.push(format!("playlist_{}.json", name));
+        if json_path.exists() {
+            continue;
+        }
+
+        let rp = rp_testfile(&json_path);
+        rp.query().get_playlist(id).await.unwrap();
+    }
+}

codegen/src/gen_dictionary.rs

@@ -1,10 +1,13 @@
-#![cfg(test)]
+use std::fmt::Write;
+use std::path::Path;
 
-use crate::{timeago::TimeUnit};
 use fancy_regex::Regex;
 use once_cell::sync::Lazy;
+use rustypipe::timeago::TimeUnit;
 
-const TARGET_FILE: &str = "src/dictionary.rs";
+use crate::util;
+
+const TARGET_PATH: &str = "src/dictionary.rs";
 
 fn parse_tu(tu: &str) -> (u8, Option<TimeUnit>) {
     static TU_PATTERN: Lazy<Regex> = Lazy::new(|| Regex::new(r"^(\d*)(\w?)$").unwrap());
@@ -27,14 +30,13 @@ fn parse_tu(tu: &str) -> (u8, Option<TimeUnit>) {
     }
 }
 
-// #[test]
+pub fn generate_dictionary(project_root: &Path) {
-fn generate_dictionary() {
+    let dict = util::read_dict(project_root);
-    let dict = super::read_dict();
 
     let code_head = r#"// This file is automatically generated. DO NOT EDIT.
 use crate::{
     model::Language,
-    timeago::{TaToken, TimeUnit, DateCmp},
+    timeago::{DateCmp, TaToken, TimeUnit},
 };
 
 pub struct Entry {
@@ -56,45 +58,45 @@ pub fn entry(lang: Language) -> Entry {
         // Match selector
         let mut selector = format!("Language::{:?}", lang);
         entry.equivalent.iter().for_each(|eq| {
-            selector += &format!(" | Language::{:?}", eq);
+            let _ = write!(selector, " | Language::{:?}", eq);
         });
 
         // Timeago tokens
         let mut ta_tokens = phf_codegen::Map::<&str>::new();
         entry.timeago_tokens.iter().for_each(|(txt, tu_str)| {
-            let (n, unit) = parse_tu(&tu_str);
+            let (n, unit) = parse_tu(tu_str);
             match unit {
                 Some(unit) => ta_tokens.entry(
-                    &txt,
+                    txt,
                     &format!("TaToken {{ n: {}, unit: Some(TimeUnit::{:?}) }}", n, unit),
                 ),
-                None => ta_tokens.entry(&txt, &format!("TaToken {{ n: {}, unit: None }}", n)),
+                None => ta_tokens.entry(txt, &format!("TaToken {{ n: {}, unit: None }}", n)),
             };
         });
 
         // Months
         let mut months = phf_codegen::Map::<&str>::new();
         entry.months.iter().for_each(|(txt, n_mon)| {
-            months.entry(&txt, &n_mon.to_string());
+            months.entry(txt, &n_mon.to_string());
         });
 
         // Timeago(ND) tokens
         let mut ta_nd_tokens = phf_codegen::Map::<&str>::new();
         entry.timeago_nd_tokens.iter().for_each(|(txt, tu_str)| {
-            let (n, unit) = parse_tu(&tu_str);
+            let (n, unit) = parse_tu(tu_str);
             match unit {
                 Some(unit) => ta_nd_tokens.entry(
-                    &txt,
+                    txt,
                     &format!("TaToken {{ n: {}, unit: Some(TimeUnit::{:?}) }}", n, unit),
                 ),
-                None => ta_nd_tokens.entry(&txt, &format!("TaToken {{ n: {}, unit: None }}", n)),
+                None => ta_nd_tokens.entry(txt, &format!("TaToken {{ n: {}, unit: None }}", n)),
             };
         });
 
         // Date order
         let mut date_order = "&[".to_owned();
         entry.date_order.chars().for_each(|c| {
-            date_order += &format!("DateCmp::{}, ", c);
+            let _ = write!(date_order, "DateCmp::{}, ", c);
         });
         date_order = date_order.trim_end_matches([' ', ',']).to_owned() + "]";
 
@@ -102,15 +104,15 @@ pub fn entry(lang: Language) -> Entry {
         let code_ta_nd_tokens = &ta_nd_tokens.build().to_string().replace('\n', "\n            ");
         let code_months = &months.build().to_string().replace('\n', "\n            ");
 
-        code_timeago_tokens += &format!(
+        let _ = write!(code_timeago_tokens, "{} => Entry {{\n            by_char: {:?},\n            timeago_tokens: {},\n            date_order: {},\n            months: {},\n            timeago_nd_tokens: {},\n        }},\n        ",
-            "{} => Entry {{\n            by_char: {:?},\n            timeago_tokens: {},\n            date_order: {},\n            months: {},\n            timeago_nd_tokens: {},\n        }},\n        ",
+        selector, entry.by_char, code_ta_tokens, date_order, code_months, code_ta_nd_tokens);
-            selector, entry.by_char, code_ta_tokens, date_order, code_months, code_ta_nd_tokens
-        );
     });
 
     code_timeago_tokens = code_timeago_tokens.trim_end().to_owned() + "\n    }\n}\n";
 
     let code = format!("{}\n{}", code_head, code_timeago_tokens);
 
-    std::fs::write(TARGET_FILE, code).unwrap();
+    let mut target_path = project_root.to_path_buf();
+    target_path.push(TARGET_PATH);
+    std::fs::write(target_path, code).unwrap();
 }

codegen/src/gen_locales.rs

@@ -1,20 +1,13 @@
-#![cfg(test)]
 use std::collections::BTreeMap;
+use std::fmt::Write;
 use std::path::Path;
 
-use reqwest::Method;
+use reqwest::header;
-use serde::{Deserialize, Serialize};
+use reqwest::Client;
+use serde::Deserialize;
 use serde_with::serde_as;
 use serde_with::VecSkipError;
 
-use crate::client::{ClientType, ContextYT, RustyTube};
-
-#[derive(Clone, Debug, Serialize)]
-#[serde(rename_all = "camelCase")]
-struct QLanguageMenu {
-    context: ContextYT,
-}
-
 #[serde_as]
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
@@ -122,12 +115,10 @@ struct LanguageItemWrap {
     compact_link_renderer: LanguageItem,
 }
 
-#[serde_as]
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 struct LanguageItem {
-    #[serde_as(as = "crate::serializer::text::Text")]
+    title: Text,
-    title: String,
     service_endpoint: ServiceEndpoint<LanguageCountryAction>,
 }
 
@@ -144,9 +135,13 @@ struct LanguageCountryCommand {
     hl: String,
 }
 
-// #[test_log::test(tokio::test)]
+#[derive(Clone, Debug, Deserialize)]
-#[allow(dead_code)]
+#[serde(rename_all = "camelCase")]
-async fn generate_locales() {
+struct Text {
+    simple_text: String,
+}
+
+pub async fn generate_locales(project_root: &Path) {
     let (languages, countries) = get_locales().await;
 
     let code_head = r#"// This file is automatically generated. DO NOT EDIT.
@@ -186,18 +181,21 @@ impl FromStr for Country {
 }
 "#;
 
-    let mut code_langs = r#"#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
+    let mut code_langs =
+        r#"#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
 #[serde(rename_all = "lowercase")]
 pub enum Language {
 "#.to_owned();
 
-    let mut code_countries = r#"#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
+    let mut code_countries =
+        r#"#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
 #[serde(rename_all = "UPPERCASE")]
 pub enum Country {
 "#.to_owned();
 
     let mut code_lang_array = format!("pub const LANGUAGES: [Language; {}] = [\n", languages.len());
-    let mut code_country_array = format!("pub const COUNTRIES: [Country; {}] = [\n", countries.len());
+    let mut code_country_array =
+        format!("pub const COUNTRIES: [Country; {}] = [\n", countries.len());
 
     let mut code_lang_names = r#"impl Language {
     pub fn name(&self) -> &str {
@@ -223,18 +221,22 @@ pub enum Country {
             .collect::<String>();
 
         // Language enum
-        code_langs += &format!("    /// {}\n    ", n);
+        let _ = write!(code_langs, "    /// {}\n    ", n);
         if c.contains('-') {
-            code_langs += &format!("#[serde(rename = \"{}\")]\n    ", c);
+            let _ = write!(code_langs, "#[serde(rename = \"{}\")]\n    ", c);
         }
         code_langs += &enum_name;
         code_langs += ",\n";
 
         // Language array
-        code_lang_array += &format!("    Language::{},\n", enum_name);
+        let _ = writeln!(code_lang_array, "    Language::{},", enum_name);
 
         // Language names
-        code_lang_names += &format!("            Language::{} => \"{}\",\n", enum_name, n);
+        let _ = writeln!(
+            code_lang_names,
+            "            Language::{} => \"{}\",",
+            enum_name, n
+        );
     });
     code_langs += "}\n";
 
@@ -242,14 +244,18 @@ pub enum Country {
         let enum_name = c[0..1].to_owned().to_uppercase() + &c[1..].to_owned().to_lowercase();
 
         // Country enum
-        code_countries += &format!("    /// {}\n", n);
+        let _ = writeln!(code_countries, "    /// {}", n);
-        code_countries += &format!("    {},\n", enum_name);
+        let _ = writeln!(code_countries, "    {},", enum_name);
 
         // Country array
-        code_country_array += &format!("    Country::{},\n", enum_name);
+        let _ = writeln!(code_country_array, "    Country::{},", enum_name);
 
         // Country names
-        code_country_names += &format!("            Country::{} => \"{}\",\n", enum_name, n);
+        let _ = writeln!(
+            code_country_names,
+            "            Country::{} => \"{}\",",
+            enum_name, n
+        );
     });
     code_countries += "}\n";
 
@@ -267,26 +273,23 @@ pub enum Country {
         code_country_array,
         code_lang_names,
         code_country_names,
-        code_foot,
+        code_foot
     );
 
-    let locale_path = Path::new("src/model/locale.rs");
+    let mut target_path = project_root.to_path_buf();
-    std::fs::write(locale_path, code).unwrap();
+    target_path.push("src/model/locale.rs");
+    std::fs::write(target_path, code).unwrap();
 }
 
 async fn get_locales() -> (BTreeMap<String, String>, BTreeMap<String, String>) {
-    let rt = RustyTube::new();
+    let client = Client::new();
-    let client = rt.get_ytclient(ClientType::Desktop);
-    let context = client.get_context(true).await;
-
-    let request_body = QLanguageMenu { context };
-
     let resp = client
-        .request_builder(Method::POST, "account/account_menu")
+        .post("https://www.youtube.com/youtubei/v1/account/account_menu?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8")
-        .await
+        .header(header::CONTENT_TYPE, "application/json")
-        .json(&request_body)
+        .body(
-        .send()
+            r##"{"context":{"client":{"clientName":"WEB","clientVersion":"2.20220914.06.00","platform":"DESKTOP","originalUrl":"https://www.youtube.com/","hl":"en","gl":"US"},"request":{"internalExperimentFlags":[],"useSsl":true},"user":{"lockedSafetyMode":false}}}"##
-        .await
+        )
+        .send().await
         .unwrap()
         .error_for_status()
         .unwrap();
@@ -344,8 +347,8 @@ fn map_language_section(section: &CompactLinkRendererWrap) -> BTreeMap<String, S
                     .select_language_command
                     .hl
                     .to_owned(),
-                i.compact_link_renderer.title.to_owned(),
+                i.compact_link_renderer.title.simple_text.to_owned(),
             )
         })
-        .collect::<BTreeMap<_, _>>()
+        .collect()
 }

codegen/src/main.rs

@@ -0,0 +1,50 @@
+mod collect_playlist_dates;
+mod download_testfiles;
+mod gen_dictionary;
+mod gen_locales;
+mod util;
+
+use std::path::PathBuf;
+
+use clap::{Parser, Subcommand};
+
+#[derive(Parser)]
+struct Cli {
+    #[clap(subcommand)]
+    command: Commands,
+    #[clap(short = 'd', default_value = "..")]
+    project_root: PathBuf,
+    #[clap(short, default_value = "8")]
+    concurrency: usize,
+}
+
+#[derive(Subcommand)]
+enum Commands {
+    CollectPlaylistDates,
+    WritePlaylistDates,
+    GenLocales,
+    GenDict,
+    DownloadTestfiles,
+}
+
+#[tokio::main]
+async fn main() {
+    env_logger::init();
+    let cli = Cli::parse();
+
+    match cli.command {
+        Commands::CollectPlaylistDates => {
+            collect_playlist_dates::collect_dates(&cli.project_root, cli.concurrency).await;
+        }
+        Commands::WritePlaylistDates => {
+            collect_playlist_dates::write_samples_to_dict(&cli.project_root);
+        }
+        Commands::GenLocales => {
+            gen_locales::generate_locales(&cli.project_root).await;
+        }
+        Commands::GenDict => gen_dictionary::generate_dictionary(&cli.project_root),
+        Commands::DownloadTestfiles => {
+            download_testfiles::download_testfiles(&cli.project_root).await
+        }
+    };
+}

codegen/src/util.rs

@@ -0,0 +1,72 @@
+use std::{collections::BTreeMap, fs::File, io::BufReader, path::Path, str::FromStr};
+
+use rustypipe::model::Language;
+use serde::{Deserialize, Serialize};
+
+const DICT_PATH: &str = "testfiles/date/dictionary.json";
+
+type Dictionary = BTreeMap<Language, DictEntry>;
+
+#[derive(Debug, Default, Serialize, Deserialize)]
+#[serde(default)]
+pub struct DictEntry {
+    pub equivalent: Vec<Language>,
+    pub by_char: bool,
+    pub timeago_tokens: BTreeMap<String, String>,
+    pub date_order: String,
+    pub months: BTreeMap<String, u8>,
+    pub timeago_nd_tokens: BTreeMap<String, String>,
+}
+
+pub fn read_dict(project_root: &Path) -> Dictionary {
+    let mut json_path = project_root.to_path_buf();
+    json_path.push(DICT_PATH);
+    let json_file = File::open(json_path).unwrap();
+    serde_json::from_reader(BufReader::new(json_file)).unwrap()
+}
+
+pub fn write_dict(project_root: &Path, dict: &Dictionary) {
+    let mut json_path = project_root.to_path_buf();
+    json_path.push(DICT_PATH);
+    let json_file = File::create(json_path).unwrap();
+    serde_json::to_writer_pretty(json_file, dict).unwrap();
+}
+
+pub fn filter_datestr(string: &str) -> String {
+    string
+        .to_lowercase()
+        .chars()
+        .filter_map(|c| {
+            if c == '\u{200b}' || c.is_ascii_digit() {
+                None
+            } else if c == '-' {
+                Some(' ')
+            } else {
+                Some(c)
+            }
+        })
+        .collect()
+}
+
+/// Parse all numbers occurring in a string and reurn them as a vec
+pub fn parse_numeric_vec<F>(string: &str) -> Vec<F>
+where
+    F: FromStr,
+{
+    let mut numbers = vec![];
+
+    let mut buf = String::new();
+    for c in string.chars() {
+        if c.is_ascii_digit() {
+            buf.push(c);
+        } else if !buf.is_empty() {
+            buf.parse::<F>().map_or((), |n| numbers.push(n));
+            buf.clear();
+        }
+    }
+    if !buf.is_empty() {
+        buf.parse::<F>().map_or((), |n| numbers.push(n));
+    }
+
+    numbers
+}

src/cache.rs

@@ -1,364 +1,57 @@
 use std::{
-    fs::File,
+    fs,
-    future::Future,
-    io::BufReader,
     path::{Path, PathBuf},
-    sync::Arc,
 };
 
-use anyhow::Result;
+use log::error;
-use chrono::{DateTime, Duration, Utc};
-use log::{error, info};
-use serde::{Deserialize, Serialize};
-use tokio::sync::Mutex;
 
-#[derive(Default, Debug, Clone)]
+pub trait CacheStorage {
-pub struct Cache {
+    fn write(&self, data: &str);
-    file: Option<PathBuf>,
+    fn read(&self) -> Option<String>;
-    data: Arc<Mutex<CacheData>>,
 }
 
-#[derive(Default, Debug, Clone, Serialize, Deserialize)]
+pub struct FileStorage {
-struct CacheData {
+    path: PathBuf,
-    desktop_client: Option<CacheEntry<ClientData>>,
-    music_client: Option<CacheEntry<ClientData>>,
-    deobf: Option<CacheEntry<DeobfData>>,
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
+impl FileStorage {
-struct CacheEntry<T> {
+    pub fn new<P: AsRef<Path>>(path: P) -> Self {
-    last_update: DateTime<Utc>,
-    data: T,
-}
-
-impl<T> From<T> for CacheEntry<T> {
-    fn from(f: T) -> Self {
         Self {
-            last_update: Utc::now(),
+            path: path.as_ref().to_path_buf(),
-            data: f,
         }
     }
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
+impl Default for FileStorage {
-pub struct ClientData {
+    fn default() -> Self {
-    pub version: String,
+        Self {
+            path: Path::new("rustypipe_cache.json").into(),
+        }
+    }
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
+impl CacheStorage for FileStorage {
-pub struct DeobfData {
+    fn write(&self, data: &str) {
-    pub js_url: String,
+        fs::write(&self.path, data).unwrap_or_else(|e| {
-    pub sig_fn: String,
+            error!(
-    pub nsig_fn: String,
+                "Could not write cache to file `{}`. Error: {}",
-    pub sts: String,
+                self.path.to_string_lossy(),
-}
+                e
-
+            );
-impl Cache {
+        });
-    pub async fn get_desktop_client_data<F>(&self, updater: F) -> Result<ClientData>
-    where
-        F: Future<Output = Result<ClientData>> + Send + 'static,
-    {
-        let mut cache = self.data.lock().await;
-
-        if cache.desktop_client.is_none()
-            || cache.desktop_client.as_ref().unwrap().last_update < Utc::now() - Duration::hours(24)
-        {
-            let cdata = updater.await?;
-            cache.desktop_client = Some(CacheEntry::from(cdata.clone()));
-            self.save(&cache);
-            Ok(cdata)
-        } else {
-            Ok(cache.desktop_client.as_ref().unwrap().data.clone())
-        }
     }
 
-    pub async fn get_music_client_data<F>(&self, updater: F) -> Result<ClientData>
+    fn read(&self) -> Option<String> {
-    where
+        match fs::read_to_string(&self.path) {
-        F: Future<Output = Result<ClientData>> + Send + 'static,
+            Ok(data) => Some(data),
-    {
-        let mut cache = self.data.lock().await;
-
-        if cache.music_client.is_none()
-            || cache.music_client.as_ref().unwrap().last_update < Utc::now() - Duration::hours(24)
-        {
-            let cdata = updater.await?;
-            cache.music_client = Some(CacheEntry::from(cdata.clone()));
-            self.save(&cache);
-            Ok(cdata)
-        } else {
-            Ok(cache.music_client.as_ref().unwrap().data.clone())
-        }
-    }
-
-    pub async fn get_deobf_data<F>(&self, updater: F) -> Result<DeobfData>
-    where
-        F: Future<Output = Result<DeobfData>> + Send + 'static,
-    {
-        let mut cache = self.data.lock().await;
-        if cache.deobf.is_none()
-            || cache.deobf.as_ref().unwrap().last_update < Utc::now() - Duration::hours(24)
-        {
-            let deobf_data = updater.await?;
-            cache.deobf = Some(CacheEntry::from(deobf_data.clone()));
-            self.save(&cache);
-            Ok(deobf_data)
-        } else {
-            Ok(cache.deobf.as_ref().unwrap().data.clone())
-        }
-    }
-
-    pub async fn to_json(&self) -> Result<String> {
-        let cache = self.data.lock().await;
-        Ok(serde_json::to_string(&cache.clone())?)
-    }
-
-    pub async fn to_json_file<P: AsRef<Path>>(&self, path: P) -> Result<()> {
-        let cache = self.data.lock().await;
-        Ok(serde_json::to_writer(&File::create(path)?, &cache.clone())?)
-    }
-
-    pub fn from_json(json: &str) -> Self {
-        let data: CacheData = match serde_json::from_str(json) {
-            Ok(cd) => cd,
             Err(e) => {
                 error!(
-                    "Could not load cache from json, falling back to default. Error: {}",
+                    "Could not load cache from file `{}`. Error: {}",
+                    self.path.to_string_lossy(),
                     e
                 );
-                CacheData::default()
+                None
             }
-        };
-        Cache {
-            data: Arc::new(Mutex::new(data)),
-            file: None,
-        }
-    }
-
-    pub fn from_json_file<P: AsRef<Path>>(path: P) -> Self {
-        let file = match File::open(path.as_ref()) {
-            Ok(file) => file,
-            Err(e) => {
-                if e.kind() == std::io::ErrorKind::NotFound {
-                    info!(
-                        "Cache json file at {} not found, will be created",
-                        path.as_ref().to_string_lossy()
-                    )
-                } else {
-                    error!(
-                        "Could not open cache json file, falling back to default. Error: {}",
-                        e
-                    );
-                }
-                return Cache {
-                    file: Some(path.as_ref().to_path_buf()),
-                    ..Default::default()
-                };
-            }
-        };
-        let data: CacheData = match serde_json::from_reader(BufReader::new(file)) {
-            Ok(data) => data,
-            Err(e) => {
-                error!(
-                    "Could not load cache from json, falling back to default. Error: {}",
-                    e
-                );
-                return Cache {
-                    file: Some(path.as_ref().to_path_buf()),
-                    ..Default::default()
-                };
-            }
-        };
-        Cache {
-            data: Arc::new(Mutex::new(data)),
-            file: Some(path.as_ref().to_path_buf()),
-        }
-    }
-
-    fn save(&self, cache: &CacheData) {
-        match self.file.as_ref() {
-            Some(file) => match File::create(file) {
-                Ok(file) => match serde_json::to_writer(file, cache) {
-                    Ok(_) => {}
-                    Err(e) => error!("Could not write cache to json. Error: {}", e),
-                },
-                Err(e) => error!("Could not open cache json file. Error: {}", e),
-            },
-            None => {}
         }
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use temp_testdir::TempDir;
-
-    use super::*;
-
-    #[tokio::test]
-    async fn test() {
-        let cache = Cache::default();
-
-        let desktop_c = cache
-            .get_desktop_client_data(async {
-                Ok(ClientData {
-                    version: "1.2.3".to_owned(),
-                })
-            })
-            .await
-            .unwrap();
-
-        assert_eq!(
-            desktop_c,
-            ClientData {
-                version: "1.2.3".to_owned()
-            }
-        );
-
-        let music_c = cache
-            .get_music_client_data(async {
-                Ok(ClientData {
-                    version: "4.5.6".to_owned(),
-                })
-            })
-            .await
-            .unwrap();
-
-        assert_eq!(
-            music_c,
-            ClientData {
-                version: "4.5.6".to_owned()
-            }
-        );
-
-        let deobf_data = cache
-            .get_deobf_data(async {
-                Ok(DeobfData {
-                    js_url:
-                        "https://www.youtube.com/s/player/011af516/player_ias.vflset/en_US/base.js"
-                            .to_owned(),
-                    sig_fn: "t_sig_fn".to_owned(),
-                    nsig_fn: "t_nsig_fn".to_owned(),
-                    sts: "t_sts".to_owned(),
-                })
-            })
-            .await
-            .unwrap();
-
-        assert_eq!(
-            deobf_data,
-            DeobfData {
-                js_url: "https://www.youtube.com/s/player/011af516/player_ias.vflset/en_US/base.js"
-                    .to_owned(),
-                sig_fn: "t_sig_fn".to_owned(),
-                nsig_fn: "t_nsig_fn".to_owned(),
-                sts: "t_sts".to_owned(),
-            }
-        );
-
-        // Create a new cache from the first one's json
-        // and check if it returns the same cached data
-        let json = cache.to_json().await.unwrap();
-        let new_cache = Cache::from_json(&json);
-
-        assert_eq!(
-            new_cache
-                .get_desktop_client_data(async {
-                    Ok(ClientData {
-                        version: "".to_owned(),
-                    })
-                })
-                .await
-                .unwrap(),
-            desktop_c
-        );
-
-        assert_eq!(
-            new_cache
-                .get_music_client_data(async {
-                    Ok(ClientData {
-                        version: "".to_owned(),
-                    })
-                })
-                .await
-                .unwrap(),
-            music_c
-        );
-
-        assert_eq!(
-            new_cache
-                .get_deobf_data(async {
-                    Ok(DeobfData {
-                        js_url: "".to_owned(),
-                        nsig_fn: "".to_owned(),
-                        sig_fn: "".to_owned(),
-                        sts: "".to_owned(),
-                    })
-                })
-                .await
-                .unwrap(),
-            deobf_data
-        );
-    }
-
-    #[tokio::test]
-    async fn test_file() {
-        let temp = TempDir::default();
-        let mut file_path = PathBuf::from(temp.as_ref());
-        file_path.push("cache.json");
-
-        let cache = Cache::from_json_file(file_path.clone());
-
-        let cdata = cache
-            .get_desktop_client_data(async {
-                Ok(ClientData {
-                    version: "1.2.3".to_owned(),
-                })
-            })
-            .await
-            .unwrap();
-
-        let deobf_data = cache
-            .get_deobf_data(async {
-                Ok(DeobfData {
-                    js_url:
-                        "https://www.youtube.com/s/player/011af516/player_ias.vflset/en_US/base.js"
-                            .to_owned(),
-                    sig_fn: "t_sig_fn".to_owned(),
-                    nsig_fn: "t_nsig_fn".to_owned(),
-                    sts: "t_sts".to_owned(),
-                })
-            })
-            .await
-            .unwrap();
-
-        assert!(file_path.exists());
-        let new_cache = Cache::from_json_file(file_path.clone());
-
-        assert_eq!(
-            new_cache
-                .get_desktop_client_data(async {
-                    Ok(ClientData {
-                        version: "".to_owned(),
-                    })
-                })
-                .await
-                .unwrap(),
-            cdata
-        );
-
-        assert_eq!(
-            new_cache
-                .get_deobf_data(async {
-                    Ok(DeobfData {
-                        js_url: "".to_owned(),
-                        nsig_fn: "".to_owned(),
-                        sig_fn: "".to_owned(),
-                        sts: "".to_owned(),
-                    })
-                })
-                .await
-                .unwrap(),
-            deobf_data
-        );
-    }
-}

src/client/channel.rs

@@ -1,41 +0,0 @@
-use anyhow::Result;
-use reqwest::Method;
-use serde::Serialize;
-
-use super::{response, ClientType, ContextYT, RustyTube};
-
-#[derive(Clone, Debug, Serialize)]
-#[serde(rename_all = "camelCase")]
-struct QChannel {
-    context: ContextYT,
-    browse_id: String,
-    params: String,
-}
-
-impl RustyTube {
-    async fn get_channel_response(&self, channel_id: &str) -> Result<response::Channel> {
-        let client = self.get_ytclient(ClientType::Desktop);
-        let context = client.get_context(true).await;
-
-        let request_body = QChannel {
-            context,
-            browse_id: channel_id.to_owned(),
-            params: "EgZ2aWRlb3PyBgQKAjoA".to_owned(),
-        };
-
-        let resp = client
-            .request_builder(Method::POST, "browse")
-            .await
-            .json(&request_body)
-            .send()
-            .await?
-            .error_for_status()?;
-
-        Ok(resp.json::<response::Channel>().await?)
-    }
-}
-
-#[cfg(test)]
-mod tests {
-
-}

src/client/player.rs

@@ -1,25 +1,33 @@
 use std::{
     borrow::Cow,
     collections::{BTreeMap, HashMap},
-    sync::Arc,
 };
 
 use anyhow::{anyhow, bail, Result};
 use chrono::{Local, NaiveDateTime, NaiveTime, TimeZone};
 use fancy_regex::Regex;
-use log::{error, warn};
 use once_cell::sync::Lazy;
-use reqwest::Method;
+use reqwest::{Method, Url};
 use serde::Serialize;
-use url::Url;
 
-use super::{response, ClientType, ContextYT, RustyTube, YTClient};
+use crate::{
-use crate::{client::response::player, deobfuscate::Deobfuscator, model::*, util};
+    deobfuscate::Deobfuscator,
+    model::{
+        AudioCodec, AudioFormat, AudioStream, AudioTrack, Channel, Language, Subtitle, VideoCodec,
+        VideoFormat, VideoInfo, VideoPlayer, VideoStream,
+    },
+    util,
+};
+
+use super::{
+    response::{self, player},
+    ClientType, MapResponse, MapResult, RustyPipeQuery, YTContext,
+};
 
 #[derive(Clone, Debug, Serialize)]
 #[serde(rename_all = "camelCase")]
 struct QPlayer {
-    context: ContextYT,
+    context: YTContext,
     /// Website playback context
     #[serde(skip_serializing_if = "Option::is_none")]
     playback_context: Option<QPlaybackContext>,
@@ -49,58 +57,211 @@ struct QContentPlaybackContext {
     referer: String,
 }
 
-impl RustyTube {
+impl RustyPipeQuery {
-    pub async fn get_player(&self, video_id: &str, client_type: ClientType) -> Result<VideoPlayer> {
+    pub async fn get_player(self, video_id: &str, client_type: ClientType) -> Result<VideoPlayer> {
-        let client = self.get_ytclient(client_type);
+        let q1 = self.clone();
-        let (context, deobf) = tokio::join!(
+        let t_context = tokio::spawn(async move { q1.get_context(client_type, false).await });
-            client.get_context(false),
+        let q2 = self.client.clone();
-            Deobfuscator::from_fetched_info(client.http_client(), self.cache.clone())
+        let t_deobf = tokio::spawn(async move { q2.get_deobf().await });
-        );
-        let deobf = deobf?;
-        let request_body = build_request_body(client.clone(), &deobf, context, video_id);
 
-        let resp = client
+        let (context, deobf) = tokio::join!(t_context, t_deobf);
-            .request_builder(Method::POST, "player")
+        let context = context.unwrap();
-            .await
+        let deobf = deobf.unwrap()?;
-            .json(&request_body)
-            .send()
-            .await?
-            .error_for_status()?;
 
-        let player_response = resp.json::<response::Player>().await?;
+        let request_body = if client_type.is_web() {
-        map_player_data(player_response, &deobf)
+            QPlayer {
+                context,
+                playback_context: Some(QPlaybackContext {
+                    content_playback_context: QContentPlaybackContext {
+                        signature_timestamp: deobf.get_sts(),
+                        referer: format!("https://www.youtube.com/watch?v={}", video_id),
+                    },
+                }),
+                cpn: None,
+                video_id: video_id.to_owned(),
+                content_check_ok: true,
+                racy_check_ok: true,
+            }
+        } else {
+            QPlayer {
+                context,
+                playback_context: None,
+                cpn: Some(util::generate_content_playback_nonce()),
+                video_id: video_id.to_owned(),
+                content_check_ok: true,
+                racy_check_ok: true,
+            }
+        };
+
+        self.execute_request_deobf::<response::Player, _, _>(
+            client_type,
+            "get_player",
+            video_id,
+            Method::POST,
+            "player",
+            &request_body,
+            Some(&deobf),
+        )
+        .await
     }
 }
 
-fn build_request_body(
+impl MapResponse<VideoPlayer> for response::Player {
-    client: Arc<dyn YTClient>,
+    fn map_response(
-    deobf: &Deobfuscator,
+        self,
-    context: ContextYT,
+        id: &str,
-    video_id: &str,
+        _lang: Language,
-) -> QPlayer {
+        deobf: Option<&Deobfuscator>,
-    if client.get_type().is_web() {
+    ) -> Result<super::MapResult<VideoPlayer>> {
-        QPlayer {
+        let deobf = deobf.unwrap();
-            context,
+        let mut warnings = vec![];
-            playback_context: Some(QPlaybackContext {
+
-                content_playback_context: QContentPlaybackContext {
+        // Check playability status
-                    signature_timestamp: deobf.get_sts(),
+        match self.playability_status {
-                    referer: format!("https://www.youtube.com/watch?v={}", video_id),
+            response::player::PlayabilityStatus::Ok { live_streamability } => {
-                },
+                if live_streamability.is_some() {
-            }),
+                    bail!("Active livestreams are not supported")
-            cpn: None,
+                }
-            video_id: video_id.to_owned(),
+            }
-            content_check_ok: true,
+            response::player::PlayabilityStatus::Unplayable { reason } => {
-            racy_check_ok: true,
+                bail!("Video is unplayable. Reason: {}", reason)
+            }
+            response::player::PlayabilityStatus::LoginRequired { reason } => {
+                bail!("Playback requires login. Reason: {}", reason)
+            }
+            response::player::PlayabilityStatus::LiveStreamOffline { reason } => {
+                bail!("Livestream is offline. Reason: {}", reason)
+            }
+            response::player::PlayabilityStatus::Error { reason } => {
+                bail!("Video was deleted. Reason: {}", reason)
+            }
+        };
+
+        let mut streaming_data = some_or_bail!(
+            self.streaming_data,
+            Err(anyhow!("No streaming data was returned"))
+        );
+        let video_details = some_or_bail!(
+            self.video_details,
+            Err(anyhow!("No video details were returned"))
+        );
+        let microformat = self.microformat.map(|m| m.player_microformat_renderer);
+        let (publish_date, category, tags, is_family_safe) =
+            microformat.map_or((None, None, None, None), |m| {
+                (
+                    Local
+                        .from_local_datetime(&NaiveDateTime::new(
+                            m.publish_date,
+                            NaiveTime::from_hms(0, 0, 0),
+                        ))
+                        .single(),
+                    Some(m.category),
+                    m.tags,
+                    Some(m.is_family_safe),
+                )
+            });
+
+        if video_details.video_id != id {
+            bail!(
+                "got wrong video id {}, expected {}",
+                video_details.video_id,
+                id
+            );
         }
-    } else {
+
-        QPlayer {
+        let video_info = VideoInfo {
-            context,
+            id: video_details.video_id,
-            playback_context: None,
+            title: video_details.title,
-            cpn: Some(util::generate_content_playback_nonce()),
+            description: video_details.short_description,
-            video_id: video_id.to_owned(),
+            length: video_details.length_seconds,
-            content_check_ok: true,
+            thumbnails: video_details.thumbnail.unwrap_or_default().into(),
-            racy_check_ok: true,
+            channel: Channel {
+                id: video_details.channel_id,
+                name: video_details.author,
+            },
+            publish_date,
+            view_count: video_details.view_count,
+            keywords: match video_details.keywords {
+                Some(keywords) => keywords,
+                None => tags.unwrap_or_default(),
+            },
+            category,
+            is_live_content: video_details.is_live_content,
+            is_family_safe,
+        };
+
+        let mut formats = streaming_data.formats.c;
+        formats.append(&mut streaming_data.adaptive_formats.c);
+
+        warnings.append(&mut streaming_data.formats.warnings);
+        warnings.append(&mut streaming_data.adaptive_formats.warnings);
+
+        let mut last_nsig: [String; 2] = ["".to_owned(), "".to_owned()];
+
+        let mut video_streams: Vec<VideoStream> = Vec::new();
+        let mut video_only_streams: Vec<VideoStream> = Vec::new();
+        let mut audio_streams: Vec<AudioStream> = Vec::new();
+
+        for f in formats {
+            if f.format_type == player::FormatType::FormatStreamTypeOtf {
+                continue;
+            }
+
+            match (f.is_video(), f.is_audio()) {
+                (true, true) => {
+                    let mut map_res = map_video_stream(f, deobf, &mut last_nsig);
+                    warnings.append(&mut map_res.warnings);
+                    if let Some(c) = map_res.c {
+                        video_streams.push(c);
+                    };
+                }
+                (true, false) => {
+                    let mut map_res = map_video_stream(f, deobf, &mut last_nsig);
+                    warnings.append(&mut map_res.warnings);
+                    if let Some(c) = map_res.c {
+                        video_only_streams.push(c);
+                    };
+                }
+                (false, true) => {
+                    let mut map_res = map_audio_stream(f, deobf, &mut last_nsig);
+                    warnings.append(&mut map_res.warnings);
+                    if let Some(c) = map_res.c {
+                        audio_streams.push(c);
+                    };
+                }
+                (false, false) => warnings.push(format!("invalid stream: itag {}", f.itag)),
+            }
         }
+
+        video_streams.sort();
+        video_only_streams.sort();
+        audio_streams.sort();
+
+        let mut subtitles = vec![];
+        if let Some(captions) = self.captions {
+            for c in captions.player_captions_tracklist_renderer.caption_tracks {
+                let lang_auto = c.name.strip_suffix(" (auto-generated)");
+
+                subtitles.push(Subtitle {
+                    url: c.base_url,
+                    lang: c.language_code,
+                    lang_name: lang_auto.unwrap_or(&c.name).to_owned(),
+                    auto_generated: lang_auto.is_some(),
+                })
+            }
+        }
+
+        Ok(MapResult {
+            c: VideoPlayer {
+                info: video_info,
+                video_streams,
+                video_only_streams,
+                audio_streams,
+                subtitles,
+                expires_in_seconds: streaming_data.expires_in_seconds,
+            },
+            warnings,
+        })
     }
 }
 
@@ -136,7 +297,7 @@ fn deobf_nsig(
     let nsig: String;
     match url_params.get("n") {
         Some(n) => {
-            nsig = if n.to_owned() == last_nsig[0] {
+            nsig = if n == &last_nsig[0] {
                 last_nsig[1].to_owned()
             } else {
                 let nsig = deobf.deobfuscate_nsig(n)?;
@@ -157,108 +318,192 @@ fn map_url(
     signature_cipher: &Option<String>,
     deobf: &Deobfuscator,
     last_nsig: &mut [String; 2],
-) -> Option<(String, bool)> {
+) -> MapResult<Option<(String, bool)>> {
     let (url_base, mut url_params) = match url {
-        Some(url) => ok_or_bail!(util::url_to_params(url), None),
+        Some(url) => ok_or_bail!(
+            util::url_to_params(url),
+            MapResult {
+                c: None,
+                warnings: vec![format!("Could not parse url `{}`", url)]
+            }
+        ),
         None => match signature_cipher {
             Some(signature_cipher) => match cipher_to_url_params(signature_cipher, deobf) {
                 Ok(res) => res,
                 Err(e) => {
-                    error!("Could not deobfuscate signatureCipher: {}", e);
+                    return MapResult {
-                    return None;
+                        c: None,
+                        warnings: vec![format!(
+                            "Could not deobfuscate signatureCipher `{}`: {}",
+                            signature_cipher, e
+                        )],
+                    };
                 }
             },
-            None => return None,
+            None => {
+                return MapResult {
+                    c: None,
+                    warnings: vec!["stream contained neither url nor cipher".to_owned()],
+                }
+            }
         },
     };
 
+    let mut warnings = vec![];
     let mut throttled = false;
     deobf_nsig(&mut url_params, deobf, last_nsig).unwrap_or_else(|e| {
-        warn!("Could not deobfuscate nsig: {}", e);
+        warnings.push(format!(
+            "Could not deobfuscate nsig (params: {:?}): {}",
+            url_params, e
+        ));
         throttled = true;
     });
 
-    Some((
+    MapResult {
-        ok_or_bail!(
+        c: Some((
-            Url::parse_with_params(url_base.as_str(), url_params.iter()),
+            ok_or_bail!(
-            None
+                Url::parse_with_params(url_base.as_str(), url_params.iter()),
-        )
+                MapResult {
-        .to_string(),
+                    c: None,
-        throttled,
+                    warnings: vec![format!(
-    ))
+                        "url could not be joined. url: `{}` params: {:?}",
+                        url_base, url_params
+                    )],
+                }
+            )
+            .to_string(),
+            throttled,
+        )),
+        warnings,
+    }
 }
 
 fn map_video_stream(
-    f: &player::Format,
+    f: player::Format,
     deobf: &Deobfuscator,
     last_nsig: &mut [String; 2],
-) -> Option<VideoStream> {
+) -> MapResult<Option<VideoStream>> {
-    let (mtype, codecs) = some_or_bail!(parse_mime(&f.mime_type), None);
+    let (mtype, codecs) = some_or_bail!(
-    let (url, throttled) =
+        parse_mime(&f.mime_type),
-        some_or_bail!(map_url(&f.url, &f.signature_cipher, deobf, last_nsig), None);
+        MapResult {
+            c: None,
+            warnings: vec![format!(
+                "Invalid mime type `{}` in video format {:?}",
+                &f.mime_type, &f
+            )]
+        }
+    );
+    let map_res = map_url(&f.url, &f.signature_cipher, deobf, last_nsig);
 
-    Some(VideoStream {
+    match map_res.c {
-        url,
+        Some((url, throttled)) => MapResult {
-        itag: f.itag,
+            c: Some(VideoStream {
-        bitrate: f.bitrate,
+                url,
-        average_bitrate: f.average_bitrate,
+                itag: f.itag,
-        size: f.content_length,
+                bitrate: f.bitrate,
-        index_range: f.index_range.clone(),
+                average_bitrate: f.average_bitrate.unwrap_or(f.bitrate),
-        init_range: f.init_range.clone(),
+                size: f.content_length,
-        width: some_or_bail!(f.width, None),
+                index_range: f.index_range,
-        height: some_or_bail!(f.height, None),
+                init_range: f.init_range,
-        fps: some_or_bail!(f.fps, None),
+                // Note that the format has already been verified using
-        quality: some_or_bail!(f.quality_label.clone(), None),
+                // is_video(), so these unwraps are safe
-        hdr: f.color_info.clone().unwrap_or_default().primaries
+                width: f.width.unwrap(),
-            == player::Primaries::ColorPrimariesBt2020,
+                height: f.height.unwrap(),
-        mime: f.mime_type.to_owned(),
+                fps: f.fps.unwrap(),
-        format: some_or_bail!(get_video_format(mtype), None),
+                quality: f.quality_label.unwrap(),
-        codec: get_video_codec(codecs),
+                hdr: f.color_info.unwrap_or_default().primaries
-        throttled,
+                    == player::Primaries::ColorPrimariesBt2020,
-    })
+                mime: f.mime_type.to_owned(),
+                format: some_or_bail!(
+                    get_video_format(mtype),
+                    MapResult {
+                        c: None,
+                        warnings: vec![format!("invalid video format. itag: {}", f.itag)]
+                    }
+                ),
+                codec: get_video_codec(codecs),
+                throttled,
+            }),
+            warnings: map_res.warnings,
+        },
+        None => MapResult {
+            c: None,
+            warnings: map_res.warnings,
+        },
+    }
 }
 
 fn map_audio_stream(
-    f: &player::Format,
+    f: player::Format,
     deobf: &Deobfuscator,
     last_nsig: &mut [String; 2],
-) -> Option<AudioStream> {
+) -> MapResult<Option<AudioStream>> {
     static LANG_PATTERN: Lazy<Regex> = Lazy::new(|| Regex::new(r#"^([a-z]{2})\."#).unwrap());
 
-    let (mtype, codecs) = some_or_bail!(parse_mime(&f.mime_type), None);
+    let (mtype, codecs) = some_or_bail!(
-    let (url, throttled) =
+        parse_mime(&f.mime_type),
-        some_or_bail!(map_url(&f.url, &f.signature_cipher, deobf, last_nsig), None);
+        MapResult {
+            c: None,
+            warnings: vec![format!(
+                "Invalid mime type `{}` in video format {:?}",
+                &f.mime_type, &f
+            )]
+        }
+    );
+    let map_res = map_url(&f.url, &f.signature_cipher, deobf, last_nsig);
 
-    Some(AudioStream {
+    match map_res.c {
-        url,
+        Some((url, throttled)) => MapResult {
-        itag: f.itag,
+            c: Some(AudioStream {
-        bitrate: f.bitrate,
+                url,
-        average_bitrate: f.average_bitrate,
+                itag: f.itag,
-        size: f.content_length,
+                bitrate: f.bitrate,
-        index_range: f.index_range.to_owned(),
+                average_bitrate: f.average_bitrate.unwrap_or(f.bitrate),
-        init_range: f.init_range.to_owned(),
+                size: f.content_length.unwrap(),
-        mime: f.mime_type.to_owned(),
+                index_range: f.index_range,
-        format: some_or_bail!(get_audio_format(mtype), None),
+                init_range: f.init_range,
-        codec: get_audio_codec(codecs),
+                mime: f.mime_type.to_owned(),
-        throttled,
+                format: some_or_bail!(
-        track: f.audio_track.as_ref().map(|t| AudioTrack {
+                    get_audio_format(mtype),
-            id: t.id.to_owned(),
+                    MapResult {
-            lang: LANG_PATTERN
+                        c: None,
-                .captures(&t.id)
+                        warnings: vec![format!("invalid audio format. itag: {}", f.itag)]
-                .ok()
+                    }
-                .flatten()
+                ),
-                .map(|m| m.get(1).unwrap().as_str().to_owned()),
+                codec: get_audio_codec(codecs),
-            lang_name: t.display_name.to_owned(),
+                throttled,
-            is_default: t.audio_is_default,
+                track: match f.audio_track {
-        }),
+                    Some(t) => {
-    })
+                        let lang = LANG_PATTERN
+                            .captures(&t.id)
+                            .ok()
+                            .flatten()
+                            .map(|m| m.get(1).unwrap().as_str().to_owned());
+
+                        Some(AudioTrack {
+                            id: t.id,
+                            lang,
+                            lang_name: t.display_name,
+                            is_default: t.audio_is_default,
+                        })
+                    }
+                    None => None,
+                },
+            }),
+            warnings: map_res.warnings,
+        },
+        None => MapResult {
+            c: None,
+            warnings: map_res.warnings,
+        },
+    }
 }
 
 fn parse_mime(mime: &str) -> Option<(&str, Vec<&str>)> {
     static PATTERN: Lazy<Regex> =
         Lazy::new(|| Regex::new(r#"(\w+/\w+);\scodecs="([a-zA-Z-0-9.,\s]*)""#).unwrap());
 
-    let captures = some_or_bail!(PATTERN.captures(&mime).ok().flatten(), None);
+    let captures = some_or_bail!(PATTERN.captures(mime).ok().flatten(), None);
     Some((
         captures.get(1).unwrap().as_str(),
         captures
@@ -313,140 +558,11 @@ fn get_audio_codec(codecs: Vec<&str>) -> AudioCodec {
     AudioCodec::Unknown
 }
 
-fn map_player_data(response: response::Player, deobf: &Deobfuscator) -> Result<VideoPlayer> {
-    // Check playability status
-    match response.playability_status {
-        response::player::PlayabilityStatus::Ok { live_streamability } => {
-            if live_streamability.is_some() {
-                bail!("Active livestreams are not supported")
-            }
-        }
-        response::player::PlayabilityStatus::Unplayable { reason } => {
-            bail!("Video is unplayable. Reason: {}", reason)
-        }
-        response::player::PlayabilityStatus::LoginRequired { reason } => {
-            bail!("Playback requires login. Reason: {}", reason)
-        }
-        response::player::PlayabilityStatus::LiveStreamOffline { reason } => {
-            bail!("Livestream is offline. Reason: {}", reason)
-        }
-        response::player::PlayabilityStatus::Error { reason } => {
-            bail!("Video was deleted. Reason: {}", reason)
-        }
-    };
-
-    let streaming_data = some_or_bail!(
-        response.streaming_data,
-        Err(anyhow!("No streaming data was returned"))
-    );
-    let video_details = some_or_bail!(
-        response.video_details,
-        Err(anyhow!("No video details were returned"))
-    );
-    let microformat = response.microformat.map(|m| m.player_microformat_renderer);
-
-    let video_info = VideoInfo {
-        id: video_details.video_id,
-        title: video_details.title,
-        description: video_details.short_description,
-        length: video_details.length_seconds,
-        thumbnails: video_details
-            .thumbnail
-            .unwrap_or_default()
-            .thumbnails
-            .iter()
-            .map(|t| Thumbnail {
-                url: t.url.to_owned(),
-                height: t.height,
-                width: t.width,
-            })
-            .collect(),
-        channel: Channel {
-            id: video_details.channel_id,
-            name: video_details.author,
-        },
-        publish_date: microformat.as_ref().map(|m| {
-            let ndt = NaiveDateTime::new(m.publish_date, NaiveTime::from_hms(0, 0, 0));
-            Local.from_local_datetime(&ndt).unwrap()
-        }),
-        view_count: video_details.view_count,
-        keywords: video_details
-            .keywords
-            .or_else(|| microformat.as_ref().map_or(None, |mf| mf.tags.clone()))
-            .unwrap_or_default(),
-        category: microformat.as_ref().map(|m| m.category.to_owned()),
-        is_live_content: video_details.is_live_content,
-        is_family_safe: microformat.as_ref().map(|m| m.is_family_safe),
-    };
-
-    let mut formats = streaming_data.formats.clone();
-    formats.append(&mut streaming_data.adaptive_formats.clone());
-
-    let mut last_nsig: [String; 2] = ["".to_owned(), "".to_owned()];
-
-    let mut video_streams: Vec<VideoStream> = Vec::new();
-    let mut video_only_streams: Vec<VideoStream> = Vec::new();
-    let mut audio_streams: Vec<AudioStream> = Vec::new();
-
-    for f in formats {
-        if f.format_type == player::FormatType::FormatStreamTypeOtf {
-            continue;
-        }
-
-        match (f.is_video(), f.is_audio()) {
-            (true, true) => match map_video_stream(&f, deobf, &mut last_nsig) {
-                Some(stream) => video_streams.push(stream),
-                None => {}
-            },
-            (true, false) => match map_video_stream(&f, deobf, &mut last_nsig) {
-                Some(stream) => video_only_streams.push(stream),
-                None => {}
-            },
-            (false, true) => match map_audio_stream(&f, deobf, &mut last_nsig) {
-                Some(stream) => audio_streams.push(stream),
-                None => {}
-            },
-            (false, false) => {}
-        }
-    }
-
-    video_streams.sort();
-    video_only_streams.sort();
-    audio_streams.sort();
-
-    let subtitles = response.captions.map_or(vec![], |captions| {
-        captions
-            .player_captions_tracklist_renderer
-            .caption_tracks
-            .iter()
-            .map(|caption| {
-                let lang_auto = caption.name.strip_suffix(" (auto-generated)");
-
-                Subtitle {
-                    url: caption.base_url.to_owned(),
-                    lang: caption.language_code.to_owned(),
-                    lang_name: lang_auto.unwrap_or(&caption.name).to_owned(),
-                    auto_generated: lang_auto.is_some(),
-                }
-            })
-            .collect()
-    });
-
-    Ok(VideoPlayer {
-        info: video_info,
-        video_streams,
-        video_only_streams,
-        audio_streams,
-        subtitles,
-        expires_in_seconds: streaming_data.expires_in_seconds,
-    })
-}
-
 #[cfg(test)]
 mod tests {
     use std::{fs::File, io::BufReader, path::Path};
 
-    use crate::{cache::DeobfData, client::CLIENT_TYPES};
+    use crate::{client::RustyPipe, deobfuscate::DeobfData};
 
     use super::*;
     use rstest::rstest;
@@ -460,59 +576,6 @@ mod tests {
     })
     });
 
-    #[test_log::test(tokio::test)]
-    async fn download_response_testfiles() {
-        let tf_dir = Path::new("testfiles/player");
-        let video_id = "pPvd8UxmSbQ";
-
-        let rt = RustyTube::new();
-
-        for client_type in CLIENT_TYPES {
-            let mut json_path = tf_dir.to_path_buf();
-            json_path.push(format!("{:?}_video.json", client_type).to_lowercase());
-            if json_path.exists() {
-                continue;
-            }
-
-            let client = rt.get_ytclient(client_type);
-            let context = client.get_context(false).await;
-
-            let request_body = build_request_body(client.clone(), &DEOBFUSCATOR, context, video_id);
-
-            let resp = client
-                .request_builder(Method::POST, "player")
-                .await
-                .json(&request_body)
-                .send()
-                .await
-                .unwrap()
-                .error_for_status()
-                .unwrap();
-
-            let mut file = File::create(json_path).unwrap();
-            let mut content = std::io::Cursor::new(resp.bytes().await.unwrap());
-            std::io::copy(&mut content, &mut file).unwrap();
-        }
-    }
-
-    #[test_log::test(tokio::test)]
-    async fn download_model_testfiles() {
-        let tf_dir = Path::new("testfiles/player_model");
-        let rt = RustyTube::new();
-
-        for (name, id) in [("multilanguage", "tVWWp1PqDus"), ("hdr", "LXb3EKWsInQ")] {
-            let mut json_path = tf_dir.to_path_buf();
-            json_path.push(format!("{}.json", name).to_lowercase());
-            if json_path.exists() {
-                continue;
-            }
-
-            let player_data = rt.get_player(id, ClientType::Desktop).await.unwrap();
-            let file = File::create(json_path).unwrap();
-            serde_json::to_writer_pretty(file, &player_data).unwrap();
-        }
-    }
-
     #[rstest]
     #[case::desktop("desktop")]
     #[case::desktop_music("desktopmusic")]
@@ -525,10 +588,17 @@ mod tests {
         let json_file = File::open(json_path).unwrap();
 
         let resp: response::Player = serde_json::from_reader(BufReader::new(json_file)).unwrap();
-        let player_data = map_player_data(resp, &DEOBFUSCATOR).unwrap();
+        let map_res = resp
+            .map_response("pPvd8UxmSbQ", Language::En, Some(&DEOBFUSCATOR))
+            .unwrap();
 
+        assert!(
+            map_res.warnings.is_empty(),
+            "deserialization/mapping warnings: {:?}",
+            map_res.warnings
+        );
         let is_desktop = name == "desktop" || name == "desktopmusic";
-        insta::assert_yaml_snapshot!(format!("map_player_data_{}", name), player_data, {
+        insta::assert_yaml_snapshot!(format!("map_player_data_{}", name), map_res.c, {
             ".info.publish_date" => insta::dynamic_redaction(move |value, _path| {
                 if is_desktop {
                     assert!(value.as_str().unwrap().starts_with("2019-05-30T00:00:00"));
@@ -561,8 +631,12 @@ mod tests {
     #[case::ios(ClientType::Ios)]
     #[test_log::test(tokio::test)]
     async fn t_get_player(#[case] client_type: ClientType) {
-        let rt = RustyTube::new();
+        let rp = RustyPipe::builder().strict().build();
-        let player_data = rt.get_player("n4tK7LYFxI0", client_type).await.unwrap();
+        let player_data = rp
+            .query()
+            .get_player("n4tK7LYFxI0", client_type)
+            .await
+            .unwrap();
 
         // dbg!(&player_data);
 
@@ -584,7 +658,12 @@ mod tests {
         assert_eq!(player_data.info.is_live_content, false);
 
         if client_type == ClientType::Desktop || client_type == ClientType::DesktopMusic {
-            assert!(player_data.info.publish_date.unwrap().to_string().starts_with("2013-05-05 00:00:00"));
+            assert!(player_data
+                .info
+                .publish_date
+                .unwrap()
+                .to_string()
+                .starts_with("2013-05-05 00:00:00"));
             assert_eq!(player_data.info.category.unwrap(), "Music");
             assert_eq!(player_data.info.is_family_safe.unwrap(), true);
         }
@@ -604,7 +683,7 @@ mod tests {
             // Bitrates may change between requests
             assert_approx(video.bitrate as f64, 1507068.0);
             assert_eq!(video.average_bitrate, 1345149);
-            assert_eq!(video.size, 43553412);
+            assert_eq!(video.size.unwrap(), 43553412);
             assert_eq!(video.width, 1280);
             assert_eq!(video.height, 720);
             assert_eq!(video.fps, 30);
@@ -634,7 +713,7 @@ mod tests {
 
             assert_approx(video.bitrate as f64, 1340829.0);
             assert_approx(video.average_bitrate as f64, 1233444.0);
-            assert_approx(video.size as f64, 39936630.0);
+            assert_approx(video.size.unwrap() as f64, 39936630.0);
             assert_eq!(video.width, 1280);
             assert_eq!(video.height, 720);
             assert_eq!(video.fps, 30);
@@ -661,15 +740,20 @@ mod tests {
     fn t_cipher_to_url() {
         let signature_cipher = "s=w%3DAe%3DA6aDNQLkViKS7LOm9QtxZJHKwb53riq9qEFw-ecBWJCAiA%3DcEg0tn3dty9jEHszfzh4Ud__bg9CEHVx4ix-7dKsIPAhIQRw8JQ0qOA&sp=sig&url=https://rr5---sn-h0jelnez.googlevideo.com/videoplayback%3Fexpire%3D1659376413%26ei%3Dvb7nYvH5BMK8gAfBj7ToBQ%26ip%3D2003%253Ade%253Aaf06%253A6300%253Ac750%253A1b77%253Ac74a%253A80e3%26id%3Do-AB_BABwrXZJN428ZwDxq5ScPn2AbcGODnRlTVhCQ3mj2%26itag%3D251%26source%3Dyoutube%26requiressl%3Dyes%26mh%3DhH%26mm%3D31%252C26%26mn%3Dsn-h0jelnez%252Csn-4g5ednsl%26ms%3Dau%252Conr%26mv%3Dm%26mvi%3D5%26pl%3D37%26initcwndbps%3D1588750%26spc%3DlT-Khi831z8dTejFIRCvCEwx_6romtM%26vprv%3D1%26mime%3Daudio%252Fwebm%26ns%3Db_Mq_qlTFcSGlG9RpwpM9xQH%26gir%3Dyes%26clen%3D3781277%26dur%3D229.301%26lmt%3D1655510291473933%26mt%3D1659354538%26fvip%3D5%26keepalive%3Dyes%26fexp%3D24001373%252C24007246%26c%3DWEB%26rbqsm%3Dfr%26txp%3D4532434%26n%3Dd2g6G2hVqWIXxedQ%26sparams%3Dexpire%252Cei%252Cip%252Cid%252Citag%252Csource%252Crequiressl%252Cspc%252Cvprv%252Cmime%252Cns%252Cgir%252Cclen%252Cdur%252Clmt%26lsparams%3Dmh%252Cmm%252Cmn%252Cms%252Cmv%252Cmvi%252Cpl%252Cinitcwndbps%26lsig%3DAG3C_xAwRQIgCKCGJ1iu4wlaGXy3jcJyU3inh9dr1FIfqYOZEG_MdmACIQCbungkQYFk7EhD6K2YvLaHFMjKOFWjw001_tLb0lPDtg%253D%253D";
         let mut last_nsig: [String; 2] = ["".to_owned(), "".to_owned()];
-        let (url, throttled) = map_url(
+        let map_res = map_url(
             &None,
             &Some(signature_cipher.to_owned()),
             &DEOBFUSCATOR,
             &mut last_nsig,
-        )
+        );
-        .unwrap();
+        let (url, throttled) = map_res.c.unwrap();
 
         assert_eq!(url, "https://rr5---sn-h0jelnez.googlevideo.com/videoplayback?c=WEB&clen=3781277&dur=229.301&ei=vb7nYvH5BMK8gAfBj7ToBQ&expire=1659376413&fexp=24001373%2C24007246&fvip=5&gir=yes&id=o-AB_BABwrXZJN428ZwDxq5ScPn2AbcGODnRlTVhCQ3mj2&initcwndbps=1588750&ip=2003%3Ade%3Aaf06%3A6300%3Ac750%3A1b77%3Ac74a%3A80e3&itag=251&keepalive=yes&lmt=1655510291473933&lsig=AG3C_xAwRQIgCKCGJ1iu4wlaGXy3jcJyU3inh9dr1FIfqYOZEG_MdmACIQCbungkQYFk7EhD6K2YvLaHFMjKOFWjw001_tLb0lPDtg%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&mh=hH&mime=audio%2Fwebm&mm=31%2C26&mn=sn-h0jelnez%2Csn-4g5ednsl&ms=au%2Conr&mt=1659354538&mv=m&mvi=5&n=XzXGSfGusw6OCQ&ns=b_Mq_qlTFcSGlG9RpwpM9xQH&pl=37&rbqsm=fr&requiressl=yes&sig=AOq0QJ8wRQIhAPIsKd7-xi4xVHEC9gb__dU4hzfzsHEj9ytd3nt0gEceAiACJWBcw-wFEq9qir35bwKHJZxtQ9mOL7SKiVkLQNDa6A%3D%3D&source=youtube&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cspc%2Cvprv%2Cmime%2Cns%2Cgir%2Cclen%2Cdur%2Clmt&spc=lT-Khi831z8dTejFIRCvCEwx_6romtM&txp=4532434&vprv=1");
         assert_eq!(throttled, false);
+        assert!(
+            map_res.warnings.is_empty(),
+            "deserialization/mapping warnings: {:?}",
+            map_res.warnings
+        );
     }
 }

src/client/playlist.rs

@@ -1,85 +1,68 @@
-use anyhow::{anyhow, Context, Result};
+use anyhow::{anyhow, bail, Result};
 use reqwest::Method;
 use serde::Serialize;
 
 use crate::{
+    deobfuscate::Deobfuscator,
     model::{Channel, Language, Playlist, Thumbnail, Video},
     serializer::text::{PageType, TextLink},
     timeago, util,
 };
 
-use super::{response, ClientType, ContextYT, RustyTube};
+use super::{response, ClientType, MapResponse, MapResult, RustyPipeQuery, YTContext};
 
 #[derive(Clone, Debug, Serialize)]
 #[serde(rename_all = "camelCase")]
 struct QPlaylist {
-    context: ContextYT,
+    context: YTContext,
     browse_id: String,
 }
 
 #[derive(Clone, Debug, Serialize)]
 #[serde(rename_all = "camelCase")]
 struct QPlaylistCont {
-    context: ContextYT,
+    context: YTContext,
     continuation: String,
 }
 
-impl RustyTube {
+impl RustyPipeQuery {
-    pub async fn get_playlist(&self, playlist_id: &str) -> Result<Playlist> {
+    pub async fn get_playlist(self, playlist_id: &str) -> Result<Playlist> {
-        let client = self.get_ytclient(ClientType::Desktop);
+        let context = self.get_context(ClientType::Desktop, true).await;
-        let context = client.get_context(true).await;
-
         let request_body = QPlaylist {
             context,
             browse_id: "VL".to_owned() + playlist_id,
         };
 
-        let resp = client
+        self.execute_request::<response::Playlist, _, _>(
-            .request_builder(Method::POST, "browse")
+            ClientType::Desktop,
-            .await
+            "get_playlist",
-            .json(&request_body)
+            playlist_id,
-            .send()
+            Method::POST,
-            .await?
+            "browse",
-            .error_for_status()?;
+            &request_body,
-
+        )
-        let resp_body = resp.text().await?;
+        .await
-        let playlist_response =
-            serde_json::from_str::<response::Playlist>(&resp_body).context(resp_body)?;
-
-        map_playlist(&playlist_response, self.localization.language)
     }
 
-    pub async fn get_playlist_cont(&self, playlist: &mut Playlist) -> Result<()> {
+    pub async fn get_playlist_cont(self, playlist: &mut Playlist) -> Result<()> {
         match &playlist.ctoken {
             Some(ctoken) => {
-                let client = self.get_ytclient(ClientType::Desktop);
+                let context = self.get_context(ClientType::Desktop, true).await;
-                let context = client.get_context(true).await;
-
                 let request_body = QPlaylistCont {
                     context,
                     continuation: ctoken.to_owned(),
                 };
 
-                let resp = client
+                let (mut videos, ctoken) = self
-                    .request_builder(Method::POST, "browse")
+                    .execute_request::<response::PlaylistCont, _, _>(
-                    .await
+                        ClientType::Desktop,
-                    .json(&request_body)
+                        "get_playlist_cont",
-                    .send()
+                        &playlist.id,
-                    .await?
+                        Method::POST,
-                    .error_for_status()?;
+                        "browse",
-
+                        &request_body,
-                let cont_response = resp.json::<response::playlist::PlaylistCont>().await?;
+                    )
-
+                    .await?;
-                let action = some_or_bail!(
-                    cont_response
-                        .on_response_received_actions
-                        .iter()
-                        .find(|a| a.append_continuation_items_action.target_id == playlist.id),
-                    Err(anyhow!("no continuation action"))
-                );
-
-                let (mut videos, ctoken) =
-                    map_playlist_items(&action.append_continuation_items_action.continuation_items);
 
                 playlist.videos.append(&mut videos);
                 playlist.ctoken = ctoken;
@@ -95,149 +78,179 @@ impl RustyTube {
     }
 }
 
-fn map_playlist(response: &response::Playlist, lang: Language) -> Result<Playlist> {
+impl MapResponse<Playlist> for response::Playlist {
-    let video_items = &some_or_bail!(
+    fn map_response(
-        some_or_bail!(
+        self,
+        id: &str,
+        lang: Language,
+        _deobf: Option<&Deobfuscator>,
+    ) -> Result<MapResult<Playlist>> {
+        let video_items = &some_or_bail!(
             some_or_bail!(
-                response
+                some_or_bail!(
-                    .contents
+                    self.contents
-                    .two_column_browse_results_renderer
+                        .two_column_browse_results_renderer
-                    .contents
+                        .contents
-                    .get(0),
+                        .get(0),
-                Err(anyhow!("twoColumnBrowseResultsRenderer empty"))
+                    Err(anyhow!("twoColumnBrowseResultsRenderer empty"))
+                )
+                .tab_renderer
+                .content
+                .section_list_renderer
+                .contents
+                .get(0),
+                Err(anyhow!("sectionListRenderer empty"))
             )
-            .tab_renderer
+            .item_section_renderer
-            .content
-            .section_list_renderer
             .contents
             .get(0),
-            Err(anyhow!("sectionListRenderer empty"))
+            Err(anyhow!("itemSectionRenderer empty"))
         )
-        .item_section_renderer
+        .playlist_video_list_renderer
-        .contents
+        .contents;
-        .get(0),
-        Err(anyhow!("itemSectionRenderer empty"))
-    )
-    .playlist_video_list_renderer
-    .contents;
 
-    let (videos, ctoken) = map_playlist_items(video_items);
+        let (videos, ctoken) = map_playlist_items(&video_items.c);
 
-    let (thumbnails, last_update_txt) = match &response.sidebar {
+        let (thumbnails, last_update_txt) = match &self.sidebar {
-        Some(sidebar) => {
+            Some(sidebar) => {
-            let primary = some_or_bail!(
+                let primary = some_or_bail!(
-                sidebar.playlist_sidebar_renderer.items.get(0),
+                    sidebar.playlist_sidebar_renderer.items.get(0),
-                Err(anyhow!("no primary sidebar"))
+                    Err(anyhow!("no primary sidebar"))
-            );
+                );
 
-            (
+                (
-                &primary
+                    &primary
-                    .playlist_sidebar_primary_info_renderer
+                        .playlist_sidebar_primary_info_renderer
-                    .thumbnail_renderer
+                        .thumbnail_renderer
-                    .playlist_video_thumbnail_renderer
+                        .playlist_video_thumbnail_renderer
-                    .thumbnail
+                        .thumbnail
-                    .thumbnails,
+                        .thumbnails,
-                primary
+                    primary
-                    .playlist_sidebar_primary_info_renderer
+                        .playlist_sidebar_primary_info_renderer
-                    .stats
+                        .stats
-                    .get(2)
+                        .get(2)
-                    .map(|t| t.to_owned()),
+                        .map(|t| t.to_owned()),
-            )
+                )
-        }
+            }
-        None => {
+            None => {
-            let header_banner = some_or_bail!(
+                let header_banner = some_or_bail!(
-                &response
+                    &self.header.playlist_header_renderer.playlist_header_banner,
+                    Err(anyhow!("no thumbnail found"))
+                );
+
+                let last_update_txt = self
                     .header
                     .playlist_header_renderer
-                    .playlist_header_banner,
+                    .byline
-                Err(anyhow!("no thumbnail found"))
+                    .get(1)
-            );
+                    .map(|b| b.playlist_byline_renderer.text.to_owned());
 
-            let last_update_txt = response
+                (
-                .header
+                    &header_banner
-                .playlist_header_renderer
+                        .hero_playlist_thumbnail_renderer
-                .byline
+                        .thumbnail
-                .get(1)
+                        .thumbnails,
-                .map(|b| b.playlist_byline_renderer.text.to_owned());
+                    last_update_txt,
+                )
+            }
+        };
 
-            (
+        let thumbnails = thumbnails
-                &header_banner
+            .iter()
-                    .hero_playlist_thumbnail_renderer
+            .map(|t| Thumbnail {
-                    .thumbnail
+                url: t.url.to_owned(),
-                    .thumbnails,
+                width: t.width,
-                last_update_txt,
+                height: t.height,
-            )
+            })
+            .collect::<Vec<_>>();
+
+        let n_videos = match ctoken {
+            Some(_) => {
+                ok_or_bail!(
+                    util::parse_numeric(&self.header.playlist_header_renderer.num_videos_text),
+                    Err(anyhow!("no video count"))
+                )
+            }
+            None => videos.len() as u32,
+        };
+
+        let playlist_id = self.header.playlist_header_renderer.playlist_id;
+        if playlist_id != id {
+            bail!("got wrong playlist id {}, expected {}", playlist_id, id);
         }
-    };
 
-    let thumbnails = thumbnails
+        let name = self.header.playlist_header_renderer.title;
-        .iter()
+        let description = self.header.playlist_header_renderer.description_text;
-        .map(|t| Thumbnail {
-            url: t.url.to_owned(),
-            width: t.width,
-            height: t.height,
-        })
-        .collect::<Vec<_>>();
 
-    let n_videos = match ctoken {
+        let channel = match self.header.playlist_header_renderer.owner_text {
-        Some(_) => {
+            Some(TextLink::Browse {
-            ok_or_bail!(
-                util::parse_numeric(&response.header.playlist_header_renderer.num_videos_text),
-                Err(anyhow!("no video count"))
-            )
-        }
-        None => videos.len() as u32,
-    };
-
-    let id = response
-        .header
-        .playlist_header_renderer
-        .playlist_id
-        .to_owned();
-    let name = response.header.playlist_header_renderer.title.to_owned();
-    let description = response
-        .header
-        .playlist_header_renderer
-        .description_text
-        .to_owned();
-
-    let channel = match &response.header.playlist_header_renderer.owner_text {
-        Some(owner_text) => match owner_text {
-            TextLink::Browse {
                 text,
-                page_type,
+                page_type: PageType::Channel,
                 browse_id,
-            } => match page_type {
+            }) => Some(Channel {
-                PageType::Channel => Some(Channel {
+                id: browse_id,
-                    id: browse_id.to_owned(),
+                name: text,
-                    name: text.to_owned(),
+            }),
-                }),
-                _ => None,
-            },
             _ => None,
-        },
+        };
-        None => None,
-    };
 
-    Ok(Playlist {
+        let mut warnings = video_items.warnings.to_owned();
-        id,
+        let last_update = match &last_update_txt {
-        name,
+            Some(textual_date) => {
-        videos,
+                let parsed = timeago::parse_textual_date_to_dt(lang, textual_date);
-        n_videos,
+                if parsed.is_none() {
-        ctoken,
+                    warnings.push(format!("could not parse textual date `{}`", textual_date));
-        thumbnails,
+                }
-        description,
+                parsed
-        channel,
+            }
-        last_update: match &last_update_txt {
-            Some(textual_date) => timeago::parse_textual_date_to_dt(lang, textual_date),
             None => None,
-        },
+        };
-        last_update_txt,
+
-    })
+        Ok(MapResult {
+            c: Playlist {
+                id: playlist_id,
+                name,
+                videos,
+                n_videos,
+                ctoken,
+                thumbnails,
+                description,
+                channel,
+                last_update,
+                last_update_txt,
+            },
+            warnings,
+        })
+    }
+}
+
+impl MapResponse<(Vec<Video>, Option<String>)> for response::PlaylistCont {
+    fn map_response(
+        self,
+        id: &str,
+        _lang: Language,
+        _deobf: Option<&Deobfuscator>,
+    ) -> Result<MapResult<(Vec<Video>, Option<String>)>> {
+        let action = some_or_bail!(
+            self.on_response_received_actions
+                .iter()
+                .find(|a| a.append_continuation_items_action.target_id == id),
+            Err(anyhow!("no continuation action"))
+        );
+
+        Ok(MapResult {
+            c: map_playlist_items(&action.append_continuation_items_action.continuation_items.c),
+            warnings: action
+                .append_continuation_items_action
+                .continuation_items
+                .warnings
+                .to_owned(),
+        })
+    }
 }
 
 fn map_playlist_items(
-    items: &Vec<response::VideoListItem<response::playlist::PlaylistVideo>>,
+    items: &[response::VideoListItem<response::playlist::PlaylistVideo>],
 ) -> (Vec<Video>, Option<String>) {
     let mut ctoken: Option<String> = None;
     let videos = items
@@ -246,30 +259,27 @@ fn map_playlist_items(
             response::VideoListItem::GridVideoRenderer { video } => match &video.channel {
                 TextLink::Browse {
                     text,
-                    page_type,
+                    page_type: PageType::Channel,
                     browse_id,
-                } => match page_type {
+                } => Some(Video {
-                    PageType::Channel => Some(Video {
+                    id: video.video_id.to_owned(),
-                        id: video.video_id.to_owned(),
+                    title: video.title.to_owned(),
-                        title: video.title.to_owned(),
+                    length: video.length_seconds,
-                        length: video.length_seconds,
+                    thumbnails: video
-                        thumbnails: video
+                        .thumbnail
-                            .thumbnail
+                        .thumbnails
-                            .thumbnails
+                        .iter()
-                            .iter()
+                        .map(|t| Thumbnail {
-                            .map(|t| Thumbnail {
+                            url: t.url.to_owned(),
-                                url: t.url.to_owned(),
+                            width: t.width,
-                                width: t.width,
+                            height: t.height,
-                                height: t.height,
+                        })
-                            })
+                        .collect(),
-                            .collect(),
+                    channel: Channel {
-                        channel: Channel {
+                        id: browse_id.to_string(),
-                            id: browse_id.to_string(),
+                        name: text.to_owned(),
-                            name: text.to_owned(),
+                    },
-                        },
+                }),
-                    }),
-                    _ => None,
-                },
                 _ => None,
             },
             response::VideoListItem::ContinuationItemRenderer {
@@ -289,49 +299,10 @@ mod tests {
 
     use rstest::rstest;
 
+    use crate::client::RustyPipe;
+
     use super::*;
 
-    #[test_log::test(tokio::test)]
-    async fn download_testfiles() {
-        let tf_dir = Path::new("testfiles/playlist");
-
-        let rt = RustyTube::new();
-
-        for (name, id) in [
-            ("short", "RDCLAK5uy_kFQXdnqMaQCVx2wpUM4ZfbsGCDibZtkJk"),
-            ("long", "PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ"),
-            ("nomusic", "PL1J-6JOckZtE_P9Xx8D3b2O6w0idhuKBe"),
-        ] {
-            let mut json_path = tf_dir.to_path_buf();
-            json_path.push(format!("playlist_{}.json", name));
-            if json_path.exists() {
-                continue;
-            }
-
-            let client = rt.get_ytclient(ClientType::Desktop);
-            let context = client.get_context(false).await;
-
-            let request_body = QPlaylist {
-                context,
-                browse_id: "VL".to_owned() + id,
-            };
-
-            let resp = client
-                .request_builder(Method::POST, "browse")
-                .await
-                .json(&request_body)
-                .send()
-                .await
-                .unwrap()
-                .error_for_status()
-                .unwrap();
-
-            let mut file = std::fs::File::create(json_path).unwrap();
-            let mut content = std::io::Cursor::new(resp.bytes().await.unwrap());
-            std::io::copy(&mut content, &mut file).unwrap();
-        }
-    }
-
     #[rstest]
     #[case::long(
         "PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ",
@@ -368,8 +339,8 @@ mod tests {
         #[case] description: Option<String>,
         #[case] channel: Option<Channel>,
     ) {
-        let rt = RustyTube::new();
+        let rp = RustyPipe::builder().strict().build();
-        let playlist = rt.get_playlist(id).await.unwrap();
+        let playlist = rp.query().get_playlist(id).await.unwrap();
 
         assert_eq!(playlist.id, id);
         assert_eq!(playlist.name, name);
@@ -378,37 +349,46 @@ mod tests {
         assert!(playlist.n_videos > 10);
         assert_eq!(playlist.n_videos > 100, is_long);
         assert_eq!(playlist.description, description);
-        assert_eq!(playlist.channel, channel);
+        if channel.is_some() {
+            assert_eq!(playlist.channel, channel);
+        }
         assert!(!playlist.thumbnails.is_empty());
     }
 
     #[rstest]
-    #[case::long("long")]
+    #[case::short("short", "RDCLAK5uy_kFQXdnqMaQCVx2wpUM4ZfbsGCDibZtkJk")]
-    #[case::short("short")]
+    #[case::long("long", "PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ")]
-    #[case::nomusic("nomusic")]
+    #[case::nomusic("nomusic", "PL1J-6JOckZtE_P9Xx8D3b2O6w0idhuKBe")]
-    fn t_map_playlist_data(#[case] name: &str) {
+    fn t_map_playlist_data(#[case] name: &str, #[case] id: &str) {
         let filename = format!("testfiles/playlist/playlist_{}.json", name);
         let json_path = Path::new(&filename);
         let json_file = File::open(json_path).unwrap();
 
         let playlist: response::Playlist =
             serde_json::from_reader(BufReader::new(json_file)).unwrap();
-        let playlist_data = map_playlist(&playlist, Language::En).unwrap();
+        let map_res = playlist.map_response(id, Language::En, None).unwrap();
-        insta::assert_yaml_snapshot!(format!("map_playlist_data_{}", name), playlist_data, {
+
+        assert!(
+            map_res.warnings.is_empty(),
+            "deserialization/mapping warnings: {:?}",
+            map_res.warnings
+        );
+        insta::assert_yaml_snapshot!(format!("map_playlist_data_{}", name), map_res.c, {
             ".last_update" => "[date]"
         });
     }
 
     #[test_log::test(tokio::test)]
     async fn t_playlist_cont() {
-        let rt = RustyTube::new();
+        let rp = RustyPipe::builder().strict().build();
-        let mut playlist = rt
+        let mut playlist = rp
+            .query()
             .get_playlist("PLbZIPy20-1pN7mqjckepWF78ndb6ci_qi")
             .await
             .unwrap();
 
         while playlist.ctoken.is_some() {
-            rt.get_playlist_cont(&mut playlist).await.unwrap();
+            rp.query().get_playlist_cont(&mut playlist).await.unwrap();
         }
 
         assert!(playlist.videos.len() > 100);

src/client/response/channel.rs

@@ -4,6 +4,7 @@ use serde_with::VecSkipError;
 
 use super::TimeOverlay;
 use super::{ContentRenderer, ContentsRenderer, Thumbnails, VideoListItem};
+use crate::serializer::text::Text;
 
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
@@ -63,11 +64,11 @@ pub struct GridRenderer {
 pub struct ChannelVideo {
     pub video_id: String,
     pub thumbnail: Thumbnails,
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub title: String,
-    #[serde_as(as = "Option<crate::serializer::text::Text>")]
+    #[serde_as(as = "Option<Text>")]
     pub published_time_text: Option<String>,
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub view_count_text: String,
     #[serde_as(as = "VecSkipError<_>")]
     pub thumbnail_overlays: Vec<TimeOverlay>,

src/client/response/mod.rs

@@ -7,6 +7,7 @@ pub mod video;
 pub use channel::Channel;
 pub use player::Player;
 pub use playlist::Playlist;
+pub use playlist::PlaylistCont;
 pub use playlist_music::PlaylistMusic;
 pub use video::Video;
 pub use video::VideoComments;
@@ -15,7 +16,7 @@ pub use video::VideoRecommendations;
 use serde::Deserialize;
 use serde_with::{serde_as, DefaultOnError, VecSkipError};
 
-use crate::serializer::text::TextLink;
+use crate::serializer::text::{Text, TextLink, TextLinks};
 
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
@@ -93,10 +94,10 @@ pub struct VideoOwner {
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct VideoOwnerRenderer {
-    #[serde_as(as = "crate::serializer::text::TextLink")]
+    #[serde_as(as = "TextLink")]
     pub title: TextLink,
     pub thumbnail: Thumbnails,
-    #[serde_as(as = "Option<crate::serializer::text::Text>")]
+    #[serde_as(as = "Option<Text>")]
     pub subscriber_count_text: Option<String>,
     #[serde(default)]
     #[serde_as(as = "VecSkipError<_>")]
@@ -132,7 +133,7 @@ pub struct TimeOverlay {
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct TimeOverlayRenderer {
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub text: String,
     #[serde(default)]
     #[serde_as(deserialize_as = "DefaultOnError")]
@@ -198,7 +199,7 @@ pub struct MusicColumn {
 #[serde_as]
 #[derive(Clone, Debug, Deserialize)]
 pub struct MusicColumnRenderer {
-    #[serde_as(as = "crate::serializer::text::TextLinks")]
+    #[serde_as(as = "TextLinks")]
     pub text: Vec<TextLink>,
 }
 
@@ -213,3 +214,23 @@ pub struct MusicContinuation {
 pub struct MusicContinuationData {
     pub continuation: String,
 }
+
+impl From<Thumbnail> for crate::model::Thumbnail {
+    fn from(tn: Thumbnail) -> Self {
+        crate::model::Thumbnail {
+            url: tn.url,
+            width: tn.width,
+            height: tn.height,
+        }
+    }
+}
+
+impl From<Thumbnails> for Vec<crate::model::Thumbnail> {
+    fn from(ts: Thumbnails) -> Self {
+        let mut thumbnails = vec![];
+        for t in ts.thumbnails {
+            thumbnails.push(t.into());
+        }
+        thumbnails
+    }
+}

src/client/response/player.rs

@@ -3,9 +3,10 @@ use std::ops::Range;
 use chrono::NaiveDate;
 use serde::Deserialize;
 use serde_with::serde_as;
-use serde_with::{json::JsonString, DefaultOnError, VecSkipError};
+use serde_with::{json::JsonString, DefaultOnError};
 
 use super::Thumbnails;
+use crate::serializer::{text::Text, MapResult, VecLogError};
 
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
@@ -45,11 +46,11 @@ pub struct StreamingData {
     #[serde_as(as = "JsonString")]
     pub expires_in_seconds: u32,
     #[serde(default)]
-    #[serde_as(as = "VecSkipError<_>")]
+    #[serde_as(as = "VecLogError<_>")]
-    pub formats: Vec<Format>,
+    pub formats: MapResult<Vec<Format>>,
     #[serde(default)]
-    #[serde_as(as = "VecSkipError<_>")]
+    #[serde_as(as = "VecLogError<_>")]
-    pub adaptive_formats: Vec<Format>,
+    pub adaptive_formats: MapResult<Vec<Format>>,
     /// Only on livestreams
     pub dash_manifest_url: Option<String>,
     /// Only on livestreams
@@ -73,20 +74,20 @@ pub struct Format {
     pub width: Option<u32>,
     pub height: Option<u32>,
 
-    #[serde_as(as = "Option<crate::serializer::range::Range>")]
+    #[serde_as(as = "Option<crate::serializer::Range>")]
     pub index_range: Option<Range<u32>>,
-    #[serde_as(as = "Option<crate::serializer::range::Range>")]
+    #[serde_as(as = "Option<crate::serializer::Range>")]
     pub init_range: Option<Range<u32>>,
 
-    #[serde_as(as = "JsonString")]
+    #[serde_as(as = "Option<JsonString>")]
-    pub content_length: u64,
+    pub content_length: Option<u64>,
 
     #[serde(default)]
     #[serde_as(deserialize_as = "DefaultOnError")]
     pub quality: Option<Quality>,
     pub fps: Option<u8>,
     pub quality_label: Option<String>,
-    pub average_bitrate: u32,
+    pub average_bitrate: Option<u32>,
     pub color_info: Option<ColorInfo>,
 
     // Audio only
@@ -104,7 +105,9 @@ pub struct Format {
 
 impl Format {
     pub fn is_audio(&self) -> bool {
-        self.audio_quality.is_some() && self.audio_sample_rate.is_some()
+        self.content_length.is_some()
+            && self.audio_quality.is_some()
+            && self.audio_sample_rate.is_some()
     }
 
     pub fn is_video(&self) -> bool {
@@ -188,7 +191,7 @@ pub struct PlayerCaptionsTracklistRenderer {
 #[serde(rename_all = "camelCase")]
 pub struct CaptionTrack {
     pub base_url: String,
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub name: String,
     pub language_code: String,
 }

src/client/response/playlist.rs

@@ -2,7 +2,8 @@ use serde::Deserialize;
 use serde_with::serde_as;
 use serde_with::{json::JsonString, DefaultOnError, VecSkipError};
 
-use crate::serializer::text::TextLink;
+use crate::serializer::text::{Text, TextLink};
+use crate::serializer::{MapResult, VecLogError};
 
 use super::{ContentRenderer, ContentsRenderer, Thumbnails, ThumbnailsWrap, VideoListItem};
 
@@ -56,8 +57,8 @@ pub struct PlaylistVideoListRenderer {
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct PlaylistVideoList {
-    #[serde_as(as = "VecSkipError<_>")]
+    #[serde_as(as = "VecLogError<_>")]
-    pub contents: Vec<VideoListItem<PlaylistVideo>>,
+    pub contents: MapResult<Vec<VideoListItem<PlaylistVideo>>>,
 }
 
 #[serde_as]
@@ -66,10 +67,10 @@ pub struct PlaylistVideoList {
 pub struct PlaylistVideo {
     pub video_id: String,
     pub thumbnail: Thumbnails,
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub title: String,
     #[serde(rename = "shortBylineText")]
-    #[serde_as(as = "crate::serializer::text::TextLink")]
+    #[serde_as(as = "TextLink")]
     pub channel: TextLink,
     #[serde_as(as = "JsonString")]
     pub length_seconds: u32,
@@ -86,14 +87,14 @@ pub struct Header {
 #[serde(rename_all = "camelCase")]
 pub struct HeaderRenderer {
     pub playlist_id: String,
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub title: String,
     #[serde(default)]
-    #[serde_as(as = "DefaultOnError<Option<crate::serializer::text::Text>>")]
+    #[serde_as(as = "DefaultOnError<Option<Text>>")]
     pub description_text: Option<String>,
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub num_videos_text: String,
-    #[serde_as(as = "Option<crate::serializer::text::TextLink>")]
+    #[serde_as(as = "Option<TextLink>")]
     pub owner_text: Option<TextLink>,
 
     // Alternative layout
@@ -118,7 +119,7 @@ pub struct Byline {
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct BylineRenderer {
-    #[serde_as(as = "crate::serializer::text::Text")]
+    #[serde_as(as = "Text")]
     pub text: String,
 }
 
@@ -150,7 +151,7 @@ pub struct SidebarPrimaryInfoRenderer {
     // - `"495", " videos"`
     // - `"3,310,996 views"`
     // - `"Last updated on ", "Aug 7, 2022"`
-    #[serde_as(as = "Vec<crate::serializer::text::Text>")]
+    #[serde_as(as = "Vec<Text>")]
     pub stats: Vec<String>,
 }
 
@@ -172,7 +173,7 @@ pub struct OnResponseReceivedAction {
 #[derive(Clone, Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct AppendAction {
-    #[serde_as(as = "VecSkipError<_>")]
+    #[serde_as(as = "VecLogError<_>")]
-    pub continuation_items: Vec<VideoListItem<PlaylistVideo>>,
+    pub continuation_items: MapResult<Vec<VideoListItem<PlaylistVideo>>>,
     pub target_id: String,
 }

src/client/response/video.rs

@@ -1,3 +1,5 @@
+#![allow(clippy::enum_variant_names)]
+
 use serde::Deserialize;
 use serde_with::serde_as;
 use serde_with::{DefaultOnError, VecSkipError};

src/client/snapshots/rustypipe__client__player__tests__map_player_data_android.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/player.rs
-expression: player_data
+expression: map_res.c
 ---
 info:
   id: pPvd8UxmSbQ
@@ -184,6 +184,22 @@ video_only_streams:
     format: mp4
     codec: av01
     throttled: false
+  - url: "https://rr5---sn-h0jeenek.googlevideo.com/videoplayback?c=ANDROID&dur=163.096&ei=q1jpYtOPEYSBgQeHmqbwAQ&expire=1659481355&fexp=24001373%2C24007246&fvip=4&id=o-AEDMTCojVtwpIKOdhBaxEHE5s322qnAJHGqa2r1F46BM&initcwndbps=1527500&ip=2003%3Ade%3Aaf0e%3A2f00%3Ade47%3A297%3Aa6db%3A774e&itag=22&lmt=1580005750956837&lsig=AG3C_xAwRgIhAOiL-qJ04sA8FSOkEJfOYl3gFe4SzwYu_rAf3DMLHYigAiEA0Upi1HqqIu7NH_LTDL0jT1R5TTozQypL5FiSP9RoqtU%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&mh=mQ&mime=video%2Fmp4&mm=31%2C29&mn=sn-h0jeenek%2Csn-h0jelnez&ms=au%2Crdu&mt=1659459429&mv=m&mvi=5&pl=37&ratebypass=yes&rbqsm=fr&requiressl=yes&sig=AOq0QJ8wRAIgFlQZgR63Yz9UgY9gVqiyGDVkZmSmACRP3-MmKN7CRzQCIAMHAwZbHmWL1qNH4Nu3A0pXZwErXMVPzMIt-PyxeZqa&source=youtube&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cvprv%2Cmime%2Cratebypass%2Cdur%2Clmt&txp=2211222&vprv=1"
+    itag: 22
+    bitrate: 1574434
+    average_bitrate: 1574434
+    size: ~
+    index_range: ~
+    init_range: ~
+    width: 1280
+    height: 720
+    fps: 30
+    quality: 720p
+    hdr: false
+    mime: "video/mp4; codecs=\"avc1.64001F, mp4a.40.2\""
+    format: mp4
+    codec: avc1
+    throttled: false
   - url: "https://rr5---sn-h0jeenek.googlevideo.com/videoplayback?c=ANDROID&clen=22365208&dur=163.046&ei=q1jpYtOPEYSBgQeHmqbwAQ&expire=1659481355&fexp=24001373%2C24007246&fvip=4&gir=yes&id=o-AEDMTCojVtwpIKOdhBaxEHE5s322qnAJHGqa2r1F46BM&initcwndbps=1527500&ip=2003%3Ade%3Aaf0e%3A2f00%3Ade47%3A297%3Aa6db%3A774e&itag=398&keepalive=yes&lmt=1608048380553749&lsig=AG3C_xAwRgIhAOiL-qJ04sA8FSOkEJfOYl3gFe4SzwYu_rAf3DMLHYigAiEA0Upi1HqqIu7NH_LTDL0jT1R5TTozQypL5FiSP9RoqtU%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&mh=mQ&mime=video%2Fmp4&mm=31%2C29&mn=sn-h0jeenek%2Csn-h0jelnez&ms=au%2Crdu&mt=1659459429&mv=m&mvi=5&otfp=1&pl=37&rbqsm=fr&requiressl=yes&sig=AOq0QJ8wRAIgR6KqCOoig_FMl2tWKa7qHSmCjIZa9S7ABzEI16qdO2sCIFXccwql4bqV9CHlqXY4tgxyMFUsp7vW4XUjxs3AyG6H&source=youtube&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cvprv%2Cmime%2Cgir%2Cclen%2Cotfp%2Cdur%2Clmt&txp=1311222&vprv=1"
     itag: 398
     bitrate: 1348419

src/client/snapshots/rustypipe__client__player__tests__map_player_data_desktop.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/player.rs
-expression: player_data
+expression: map_res.c
 ---
 info:
   id: pPvd8UxmSbQ

src/client/snapshots/rustypipe__client__player__tests__map_player_data_desktopmusic.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/player.rs
-expression: player_data
+expression: map_res.c
 ---
 info:
   id: pPvd8UxmSbQ

src/client/snapshots/rustypipe__client__player__tests__map_player_data_ios.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/player.rs
-expression: player_data
+expression: map_res.c
 ---
 info:
   id: pPvd8UxmSbQ

src/client/snapshots/rustypipe__client__player__tests__map_player_data_tvhtml5embed.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/player.rs
-expression: player_data
+expression: map_res.c
 ---
 info:
   id: pPvd8UxmSbQ

src/client/snapshots/rustypipe__client__playlist__tests__map_playlist_data_long.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/playlist.rs
-expression: playlist_data
+expression: map_res.c
 ---
 id: PL5dDx681T4bR7ZF1IuWzOv1omlRbE7PiJ
 name: Die schönsten deutschen Lieder | Beliebteste Lieder | Beste Deutsche Musik 2022

src/client/snapshots/rustypipe__client__playlist__tests__map_playlist_data_nomusic.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/playlist.rs
-expression: playlist_data
+expression: map_res.c
 ---
 id: PL1J-6JOckZtE_P9Xx8D3b2O6w0idhuKBe
 name: Minecraft SHINE

src/client/snapshots/rustypipe__client__playlist__tests__map_playlist_data_short.snap

@@ -1,6 +1,6 @@
 ---
 source: src/client/playlist.rs
-expression: playlist_data
+expression: map_res.c
 ---
 id: RDCLAK5uy_kFQXdnqMaQCVx2wpUM4ZfbsGCDibZtkJk
 name: Easy Pop

src/client/video.rs

@@ -1,111 +0,0 @@
-use anyhow::Result;
-use reqwest::Method;
-use serde::Serialize;
-
-use super::{response, ClientType, ContextYT, RustyTube};
-
-#[derive(Clone, Debug, Serialize)]
-struct QVideo {
-    context: ContextYT,
-    /// YouTube video ID
-    video_id: String,
-    /// Set to true to allow extraction of streams with sensitive content
-    content_check_ok: bool,
-    /// Probably refers to allowing sensitive content, too
-    racy_check_ok: bool,
-}
-
-#[derive(Clone, Debug, Serialize)]
-struct QVideoCont {
-    context: ContextYT,
-    continuation: String,
-}
-
-impl RustyTube {
-    async fn get_video_response(&self, video_id: &str) -> Result<response::Video> {
-        let client = self.get_ytclient(ClientType::Desktop);
-        let context = client.get_context(true).await;
-        let request_body = QVideo {
-            context,
-            video_id: video_id.to_owned(),
-            content_check_ok: true,
-            racy_check_ok: true,
-        };
-
-        let resp = client
-            .request_builder(Method::POST, "next")
-            .await
-            .json(&request_body)
-            .send()
-            .await?
-            .error_for_status()?;
-
-        Ok(resp.json::<response::Video>().await?)
-    }
-
-    async fn get_comments_response(&self, ctoken: &str) -> Result<response::VideoComments> {
-        let client = self.get_ytclient(ClientType::Desktop);
-        let context = client.get_context(true).await;
-        let request_body = QVideoCont {
-            context,
-            continuation: ctoken.to_owned(),
-        };
-
-        let resp = client
-            .request_builder(Method::POST, "next")
-            .await
-            .json(&request_body)
-            .send()
-            .await?
-            .error_for_status()?;
-
-        Ok(resp.json::<response::VideoComments>().await?)
-    }
-
-    async fn get_recommendations_response(
-        &self,
-        ctoken: &str,
-    ) -> Result<response::VideoRecommendations> {
-        let client = self.get_ytclient(ClientType::Desktop);
-        let context = client.get_context(true).await;
-        let request_body = QVideoCont {
-            context,
-            continuation: ctoken.to_owned(),
-        };
-
-        let resp = client
-            .request_builder(Method::POST, "next")
-            .await
-            .json(&request_body)
-            .send()
-            .await?
-            .error_for_status()?;
-
-        Ok(resp.json::<response::VideoRecommendations>().await?)
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[tokio::test]
-    async fn t_get_video_response() {
-        let rt = RustyTube::new();
-        // rt.get_video("ZeerrnuLi5E").await.unwrap();
-        dbg!(rt.get_video_response("iQfSvIgIs_M").await.unwrap());
-    }
-
-    #[tokio::test]
-    async fn t_get_comments_response() {
-        let rt = RustyTube::new();
-        // rt.get_comments("Eg0SC2lRZlN2SWdJc19NGAYyJSIRIgtpUWZTdklnSXNfTTAAeAJCEGNvbW1lbnRzLXNlY3Rpb24%3D").await.unwrap();
-        dbg!(rt.get_comments_response("Eg0SC2lRZlN2SWdJc19NGAYychpFEhRVZ2lnVGJVTEZ6Qk5FWGdDb0FFQyICCAAqGFVDWFgwUldPSUJqdDRvM3ppSHUtNmE1QTILaVFmU3ZJZ0lzX01AAUgKQiljb21tZW50LXJlcGxpZXMtaXRlbS1VZ2lnVGJVTEZ6Qk5FWGdDb0FFQw%3D%3D").await.unwrap());
-    }
-
-    #[tokio::test]
-    async fn t_get_recommendations_response() {
-        let rt = RustyTube::new();
-        dbg!(rt.get_recommendations_response("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").await.unwrap());
-    }
-}

src/codegen/mod.rs

@@ -1,35 +0,0 @@
-#![cfg(test)]
-
-use std::{collections::BTreeMap, fs::File, io::BufReader};
-
-use serde::{Serialize, Deserialize};
-
-use crate::model::Language;
-mod collect_playlist_dates;
-mod gen_dictionary;
-mod gen_locales;
-
-const DICT_PATH: &str = "testfiles/date/dictionary.json";
-
-type Dictionary = BTreeMap<Language, DictEntry>;
-
-#[derive(Debug, Default, Serialize, Deserialize)]
-#[serde(default)]
-struct DictEntry {
-    equivalent: Vec<Language>,
-    by_char: bool,
-    timeago_tokens: BTreeMap<String, String>,
-    date_order: String,
-    months: BTreeMap<String, u8>,
-    timeago_nd_tokens: BTreeMap<String, String>,
-}
-
-fn read_dict() -> Dictionary {
-    let json_file = File::open(DICT_PATH).unwrap();
-    serde_json::from_reader(BufReader::new(json_file)).unwrap()
-}
-
-fn write_dict(dict: &Dictionary) {
-    let json_file = File::create(DICT_PATH).unwrap();
-    serde_json::to_writer_pretty(json_file, dict).unwrap();
-}

src/deobfuscate.rs

@@ -3,43 +3,47 @@ use fancy_regex::Regex;
 use log::debug;
 use once_cell::sync::Lazy;
 use reqwest::Client;
+use serde::{Deserialize, Serialize};
 use std::result::Result::Ok;
 
-use crate::cache::{Cache, DeobfData};
 use crate::util;
 
 pub struct Deobfuscator {
     data: DeobfData,
 }
 
+#[derive(Debug, Default, Clone, Serialize, Deserialize, PartialEq, Eq)]
+pub struct DeobfData {
+    pub js_url: String,
+    pub sig_fn: String,
+    pub nsig_fn: String,
+    pub sts: String,
+}
+
 impl Deobfuscator {
-    pub async fn from_fetched_info(http: Client, cache: Cache) -> Result<Self> {
+    pub async fn new(http: Client) -> Result<Self> {
-        let data = cache
+        let js_url = get_player_js_url(&http)
-            .get_deobf_data(async move {
+            .await
-                let js_url = get_player_js_url(&http)
+            .context("Failed to retrieve player.js URL")?;
-                    .await
-                    .context("Failed to retrieve player.js URL")?;
 
-                let player_js = get_response(&http, &js_url)
+        let player_js = get_response(&http, &js_url)
-                    .await
+            .await
-                    .context("Failed to download player.js")?;
+            .context("Failed to download player.js")?;
 
-                debug!("Downloaded player.js from {}", js_url);
+        debug!("Downloaded player.js from {}", js_url);
 
-                let sig_fn = get_sig_fn(&player_js)?;
+        let sig_fn = get_sig_fn(&player_js)?;
-                let nsig_fn = get_nsig_fn(&player_js)?;
+        let nsig_fn = get_nsig_fn(&player_js)?;
-                let sts = get_sts(&player_js)?;
+        let sts = get_sts(&player_js)?;
 
-                Ok(DeobfData {
+        Ok(Self {
-                    js_url,
+            data: DeobfData {
-                    nsig_fn,
+                js_url,
-                    sig_fn,
+                nsig_fn,
-                    sts,
+                sig_fn,
-                })
+                sts,
-            })
+            },
-            .await?;
+        })
-
-        Ok(Self { data })
     }
 
     pub fn deobfuscate_sig(&self, sig: &str) -> Result<String> {
@@ -53,6 +57,10 @@ impl Deobfuscator {
     pub fn get_sts(&self) -> String {
         self.data.sts.to_owned()
     }
+
+    pub fn get_data(&self) -> DeobfData {
+        self.data.to_owned()
+    }
 }
 
 impl From<DeobfData> for Deobfuscator {
@@ -80,7 +88,7 @@ fn get_sig_fn_name(player_js: &str) -> Result<String> {
 }
 
 fn caller_function(fn_name: &str) -> String {
-    "var ".to_owned() + DEOBFUSCATION_FUNC_NAME + "=" + &fn_name + ";"
+    format!("var {}={};", DEOBFUSCATION_FUNC_NAME, fn_name)
 }
 
 fn get_sig_fn(player_js: &str) -> Result<String> {
@@ -345,7 +353,7 @@ fn get_sts(player_js: &str) -> Result<String> {
         Lazy::new(|| Regex::new("signatureTimestamp[=:](\\d+)").unwrap());
 
     Ok(some_or_bail!(
-        STS_PATTERN.captures(&player_js)?,
+        STS_PATTERN.captures(player_js)?,
         Err(anyhow!("could not find sts"))
     )
     .get(1)
@@ -472,10 +480,7 @@ c[36](c[8],c[32]),c[20](c[25],c[10]),c[2](c[22],c[8]),c[32](c[20],c[16]),c[32](c
     #[test(tokio::test)]
     async fn t_update() {
         let client = Client::new();
-        let cache = Cache::default();
+        let deobf = Deobfuscator::new(client).await.unwrap();
-        let deobf = Deobfuscator::from_fetched_info(client, cache)
-            .await
-            .unwrap();
 
         let deobf_sig = deobf.deobfuscate_sig("GOqGOqGOq0QJ8wRAIgaryQHfplJ9xJSKFywyaSMHuuwZYsoMTAvRvfm51qIGECIA5061zWeyfMPX9hEl_U6f9J0tr7GTJMKyPf5XNrJb5fb5i").unwrap();
         println!("{}", deobf_sig);

src/dictionary.rs

@@ -1,7 +1,7 @@
 // This file is automatically generated. DO NOT EDIT.
 use crate::{
     model::Language,
-    timeago::{TaToken, TimeUnit, DateCmp},
+    timeago::{DateCmp, TaToken, TimeUnit},
 };
 
 pub struct Entry {

src/download.rs

@@ -27,8 +27,8 @@ fn get_download_range(offset: u64, size: Option<u64>) -> Range<u64> {
     let chunk_size = rng.gen_range(CHUNK_SIZE_MIN..CHUNK_SIZE_MAX);
     let mut chunk_end = offset + chunk_size;
 
-    if size.is_some() {
+    if let Some(size) = size {
-        chunk_end = chunk_end.min(size.unwrap() - 1)
+        chunk_end = chunk_end.min(size - 1)
     }
 
     Range {
@@ -41,7 +41,7 @@ fn parse_cr_header(cr_header: &str) -> Result<(u64, u64)> {
     static PATTERN: Lazy<Regex> = Lazy::new(|| Regex::new(r#"bytes (\d+)-(\d+)/(\d+)"#).unwrap());
 
     let captures = some_or_bail!(
-        PATTERN.captures(&cr_header).ok().flatten(),
+        PATTERN.captures(cr_header).ok().flatten(),
         Err(anyhow!(
             "Content-Range header '{}' does not match pattern.",
             cr_header
@@ -77,10 +77,7 @@ async fn download_single_file<P: Into<PathBuf>>(
     let (url_base, url_params) = util::url_to_params(url)?;
     let is_gvideo = url_base.ends_with(".googlevideo.com/videoplayback");
     if is_gvideo {
-        size = url_params
+        size = url_params.get("clen").and_then(|s| s.parse::<u64>().ok());
-            .get("clen")
-            .map(|s| s.parse::<u64>().ok())
-            .flatten();
     }
 
     // Check if file is partially downloaded
@@ -257,6 +254,7 @@ struct StreamDownload {
     video_codec: Option<VideoCodec>,
 }
 
+#[allow(clippy::too_many_arguments)]
 pub async fn download_video(
     player_data: &VideoPlayer,
     output_dir: &str,
@@ -327,7 +325,7 @@ pub async fn download_video(
         _ => {
             let mut downloads: Vec<StreamDownload> = Vec::new();
 
-            video.map(|v| {
+            if let Some(v) = video {
                 downloads.push(StreamDownload {
                     file: download_dir.join(format!(
                         "{}.video{}",
@@ -338,8 +336,8 @@ pub async fn download_video(
                     video_codec: Some(v.codec),
                     audio_codec: None,
                 });
-            });
+            }
-            audio.map(|a| {
+            if let Some(a) = audio {
                 downloads.push(StreamDownload {
                     file: download_dir.join(format!(
                         "{}.audio{}",
@@ -350,7 +348,7 @@ pub async fn download_video(
                     video_codec: None,
                     audio_codec: Some(a.codec),
                 })
-            });
+            }
 
             pb.set_message(format!("Downloading {}", title));
             download_streams(&downloads, http, pb.clone()).await?;

src/lib.rs

@@ -1,18 +1,17 @@
 #![allow(dead_code)]
+#![warn(clippy::todo)]
 
 #[macro_use]
 mod macros;
 
-#[cfg(test)]
-mod codegen;
-
-mod cache;
 mod deobfuscate;
 mod dictionary;
 mod serializer;
-mod timeago;
 mod util;
 
+pub mod cache;
 pub mod client;
 pub mod download;
 pub mod model;
+pub mod report;
+pub mod timeago;

src/model/mod.rs

@@ -59,7 +59,7 @@ pub struct VideoStream {
     pub itag: u32,
     pub bitrate: u32,
     pub average_bitrate: u32,
-    pub size: u64,
+    pub size: Option<u64>,
     pub index_range: Option<Range<u32>>,
     pub init_range: Option<Range<u32>>,
     pub width: u32,

src/report.rs

@@ -0,0 +1,130 @@
+use std::{
+    collections::BTreeMap,
+    fs::File,
+    path::{Path, PathBuf},
+};
+
+use anyhow::Result;
+use chrono::{DateTime, Local};
+use log::error;
+use serde::{Deserialize, Serialize};
+
+use crate::deobfuscate::DeobfData;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Report {
+    /// Rust package name (`rustypipe`)
+    pub package: String,
+    /// Package version (`0.1.0`)
+    pub version: String,
+    /// Date/Time when the event occurred
+    pub date: DateTime<Local>,
+    /// Report level
+    pub level: Level,
+    /// RustyPipe operation (e.g. `get_player`)
+    pub operation: String,
+    /// Error (if occurred)
+    pub error: Option<String>,
+    /// Detailed error/warning messages
+    pub msgs: Vec<String>,
+    /// Deobfuscation data (only for player requests)
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub deobf_data: Option<DeobfData>,
+    /// HTTP request data
+    pub http_request: HTTPRequest,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct HTTPRequest {
+    /// Request URL
+    pub url: String,
+    /// HTTP method
+    pub method: String,
+    /// HTTP request header
+    pub req_header: BTreeMap<String, String>,
+    /// HTTP request body
+    pub req_body: String,
+    /// HTTP response status code
+    pub status: u16,
+    /// HTTP response body
+    pub resp_body: String,
+}
+
+#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub enum Level {
+    /// **Debug**: Operation successful, report generation was forced by setting
+    /// ``.report(true)``
+    DBG,
+    /// **Warning**: Operation successful, but some parts could not be deserialized
+    WRN,
+    /// **Error**: Operation failed
+    ERR,
+}
+
+pub trait Reporter {
+    fn report(&self, report: &Report);
+}
+
+pub struct FileReporter {
+    path: PathBuf,
+}
+
+impl FileReporter {
+    pub fn new<P: AsRef<Path>>(path: P) -> Self {
+        Self {
+            path: path.as_ref().to_path_buf(),
+        }
+    }
+
+    fn _report(&self, report: &Report) -> Result<()> {
+        #[cfg(not(feature = "report-yaml"))]
+        {
+            let report_path = get_report_path(&self.path, report, "json")?;
+            serde_json::to_writer_pretty(&File::create(report_path)?, &report)?;
+        }
+        #[cfg(feature = "report-yaml")]
+        {
+            let report_path = get_report_path(&self.path, report, "yaml")?;
+            serde_yaml::to_writer(&File::create(report_path)?, &report)?;
+        }
+        Ok(())
+    }
+}
+
+impl Default for FileReporter {
+    fn default() -> Self {
+        Self {
+            path: Path::new("rustypipe_reports").to_path_buf(),
+        }
+    }
+}
+
+impl Reporter for FileReporter {
+    fn report(&self, report: &Report) {
+        self._report(report)
+            .unwrap_or_else(|e| error!("Could not store report file. Err: {}", e));
+    }
+}
+
+fn get_report_path(root: &Path, report: &Report, ext: &str) -> Result<PathBuf> {
+    if !root.is_dir() {
+        std::fs::create_dir_all(root)?;
+    }
+
+    let filename_prefix = format!("{}_{:?}", report.date.format("%F_%H-%M-%S"), report.level);
+
+    let mut report_path = root.to_path_buf();
+    report_path.push(format!("{}.{}", filename_prefix, ext));
+
+    // ensure unique filename
+    for i in 1..u32::MAX {
+        if report_path.exists() {
+            report_path = root.to_path_buf();
+            report_path.push(format!("{}_{}.{}", filename_prefix, i, ext));
+        } else {
+            break;
+        }
+    }
+
+    Ok(report_path)
+}

src/serializer/mod.rs

@@ -1,2 +1,40 @@
-pub mod range;
 pub mod text;
+
+mod range;
+mod vec_log_err;
+
+pub use range::Range;
+pub use vec_log_err::VecLogError;
+
+use std::fmt::Debug;
+
+/// This represents a result from a deserializing/mapping operation.
+/// It holds the desired content (`c`) and a list of warning messages,
+/// if there occurred minor error during the deserializing or mapping
+/// (e.g. certain list items could not be deserialized).
+#[derive(Clone)]
+pub struct MapResult<T> {
+    pub c: T,
+    pub warnings: Vec<String>,
+}
+
+impl<T> Debug for MapResult<T>
+where
+    T: Debug,
+{
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.c.fmt(f)
+    }
+}
+
+impl<T> Default for MapResult<T>
+where
+    T: Default,
+{
+    fn default() -> Self {
+        Self {
+            c: Default::default(),
+            warnings: Vec::new(),
+        }
+    }
+}

src/serializer/text.rs

@@ -223,11 +223,7 @@ impl<'de> DeserializeAs<'de, Vec<TextLink>> for TextLinks {
         D: Deserializer<'de>,
     {
         let link = TextLinkInternal::deserialize(deserializer)?;
-        Ok(link
+        Ok(link.runs.iter().filter_map(map_text_linkrun).collect())
-            .runs
-            .iter()
-            .filter_map(|r| map_text_linkrun(r))
-            .collect())
     }
 }
 

src/serializer/vec_log_err.rs

@@ -0,0 +1,137 @@
+use std::{fmt, marker::PhantomData};
+
+use serde::{
+    de::{SeqAccess, Visitor},
+    Deserialize,
+};
+use serde_with::{de::DeserializeAsWrap, DeserializeAs};
+
+use super::MapResult;
+
+/// Deserializes a list of arbitrary items into a `MapResult`,
+/// creating warnings for items that could not be deserialized.
+///
+/// This is similar to `VecSkipError`, but it does not silently ignore
+/// faulty items.
+pub struct VecLogError<T>(PhantomData<T>);
+
+impl<'de, T, U> DeserializeAs<'de, MapResult<Vec<T>>> for VecLogError<U>
+where
+    U: DeserializeAs<'de, T>,
+{
+    fn deserialize_as<D>(deserializer: D) -> Result<MapResult<Vec<T>>, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        #[derive(serde::Deserialize)]
+        #[serde(
+            untagged,
+            bound(deserialize = "DeserializeAsWrap<T, TAs>: Deserialize<'de>")
+        )]
+        enum GoodOrError<'a, T, TAs>
+        where
+            TAs: DeserializeAs<'a, T>,
+        {
+            Good(DeserializeAsWrap<T, TAs>),
+            Error(serde_json::value::Value),
+            #[serde(skip)]
+            _JustAMarkerForTheLifetime(PhantomData<&'a u32>),
+        }
+
+        struct SeqVisitor<T, U> {
+            marker: PhantomData<T>,
+            marker2: PhantomData<U>,
+        }
+
+        impl<'de, T, U> Visitor<'de> for SeqVisitor<T, U>
+        where
+            U: DeserializeAs<'de, T>,
+        {
+            type Value = MapResult<Vec<T>>;
+
+            fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
+                formatter.write_str("a sequence")
+            }
+
+            fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
+            where
+                A: SeqAccess<'de>,
+            {
+                let mut values = Vec::with_capacity(seq.size_hint().unwrap_or_default());
+                let mut warnings = Vec::new();
+
+                while let Some(value) = seq.next_element()? {
+                    match value {
+                        GoodOrError::<T, U>::Good(value) => {
+                            values.push(value.into_inner());
+                        }
+                        GoodOrError::<T, U>::Error(value) => {
+                            warnings.push(format!(
+                                "error deserializing item: {}",
+                                serde_json::to_string(&value).unwrap_or_default()
+                            ));
+                        }
+                        _ => {}
+                    }
+                }
+                Ok(MapResult {
+                    c: values,
+                    warnings,
+                })
+            }
+        }
+
+        let visitor = SeqVisitor::<T, U> {
+            marker: PhantomData,
+            marker2: PhantomData,
+        };
+        deserializer.deserialize_seq(visitor)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use serde::Deserialize;
+    use serde_with::serde_as;
+
+    use crate::serializer::MapResult;
+
+    #[serde_as]
+    #[derive(Debug, Deserialize)]
+    struct S {
+        #[serde_as(as = "crate::serializer::VecLogError<_>")]
+        items: MapResult<Vec<Item>>,
+    }
+
+    #[derive(Debug, Deserialize)]
+    struct Item {
+        name: String,
+    }
+
+    #[test]
+    fn test() {
+        let json = r#"{"items": [{"name": "i1"}, {"xyz": "i2"}, {"name": "i3"}, {"namra": "i4"}]}"#;
+
+        let res = serde_json::from_str::<S>(json).unwrap();
+
+        insta::assert_debug_snapshot!(res, @r###"
+        S {
+            items: [
+                Item {
+                    name: "i1",
+                },
+                Item {
+                    name: "i3",
+                },
+            ],
+        }
+        "###);
+
+        insta::assert_debug_snapshot!(res.items.warnings, @r###"
+        [
+            "error deserializing item: {\"xyz\":\"i2\"}",
+            "error deserializing item: {\"namra\":\"i4\"}",
+        ]
+        "###);
+    }
+}

src/timeago.rs

@@ -52,24 +52,24 @@ impl Mul<u8> for TimeAgo {
     }
 }
 
-impl Into<DateTime<Local>> for TimeAgo {
+impl From<TimeAgo> for DateTime<Local> {
-    fn into(self) -> DateTime<Local> {
+    fn from(ta: TimeAgo) -> Self {
         let ts = Local::now();
-        match self.unit {
+        match ta.unit {
-            TimeUnit::Second => ts - Duration::seconds(self.n as i64),
+            TimeUnit::Second => ts - Duration::seconds(ta.n as i64),
-            TimeUnit::Minute => ts - Duration::minutes(self.n as i64),
+            TimeUnit::Minute => ts - Duration::minutes(ta.n as i64),
-            TimeUnit::Hour => ts - Duration::hours(self.n as i64),
+            TimeUnit::Hour => ts - Duration::hours(ta.n as i64),
-            TimeUnit::Day => ts - Duration::days(self.n as i64),
+            TimeUnit::Day => ts - Duration::days(ta.n as i64),
-            TimeUnit::Week => ts - Duration::weeks(self.n as i64),
+            TimeUnit::Week => ts - Duration::weeks(ta.n as i64),
-            TimeUnit::Month => chronoutil::shift_months(ts, -(self.n as i32)),
+            TimeUnit::Month => chronoutil::shift_months(ts, -(ta.n as i32)),
-            TimeUnit::Year => chronoutil::shift_years(ts, -(self.n as i32)),
+            TimeUnit::Year => chronoutil::shift_years(ts, -(ta.n as i32)),
         }
     }
 }
 
-impl Into<DateTime<Local>> for ParsedDate {
+impl From<ParsedDate> for DateTime<Local> {
-    fn into(self) -> DateTime<Local> {
+    fn from(date: ParsedDate) -> Self {
-        match self {
+        match date {
             ParsedDate::Absolute(date) => Local
                 .from_local_datetime(&NaiveDateTime::new(date, NaiveTime::from_hms(0, 0, 0)))
                 .unwrap(),
@@ -78,7 +78,7 @@ impl Into<DateTime<Local>> for ParsedDate {
     }
 }
 
-pub fn filter_str(string: &str) -> String {
+fn filter_str(string: &str) -> String {
     string
         .to_lowercase()
         .chars()
@@ -103,29 +103,23 @@ fn parse_ta_token(entry: &dictionary::Entry, nd: bool, filtered_str: &str) -> Op
 
     if entry.by_char {
         filtered_str.chars().find_map(|word| {
-            tokens
+            tokens.get(&word.to_string()).and_then(|t| match t.unit {
-                .get(&word.to_string())
+                Some(unit) => Some(TimeAgo { n: t.n * qu, unit }),
-                .map(|t| match t.unit {
+                None => {
-                    Some(unit) => Some(TimeAgo { n: t.n * qu, unit }),
+                    qu = t.n;
-                    None => {
+                    None
-                        qu = t.n;
+                }
-                        None
+            })
-                    }
-                })
-                .flatten()
         })
     } else {
         filtered_str.split_whitespace().find_map(|word| {
-            tokens
+            tokens.get(word).and_then(|t| match t.unit {
-                .get(word)
+                Some(unit) => Some(TimeAgo { n: t.n * qu, unit }),
-                .map(|t| match t.unit {
+                None => {
-                    Some(unit) => Some(TimeAgo { n: t.n * qu, unit }),
+                    qu = t.n;
-                    None => {
+                    None
-                        qu = t.n;
+                }
-                        None
+            })
-                    }
-                })
-                .flatten()
         })
     }
 }
@@ -137,7 +131,7 @@ fn parse_textual_month(entry: &dictionary::Entry, filtered_str: &str) -> Option<
     } else {
         filtered_str
             .split_whitespace()
-            .find_map(|word| entry.months.get(word).map(|n| *n))
+            .find_map(|word| entry.months.get(word).copied())
     }
 }
 
@@ -145,7 +139,7 @@ pub fn parse_timeago(lang: Language, textual_date: &str) -> Option<TimeAgo> {
     let entry = dictionary::entry(lang);
     let filtered_str = filter_str(textual_date);
 
-    let qu: u8 = util::parse_numeric(&textual_date).unwrap_or(1);
+    let qu: u8 = util::parse_numeric(textual_date).unwrap_or(1);
 
     parse_ta_token(&entry, false, &filtered_str).map(|ta| ta * qu)
 }
@@ -163,8 +157,7 @@ pub fn parse_textual_date(lang: Language, textual_date: &str) -> Option<ParsedDa
     match nums.len() {
         0 => match parse_ta_token(&entry, true, &filtered_str) {
             Some(timeago) => Some(ParsedDate::Relative(timeago)),
-            None => parse_ta_token(&entry, false, &filtered_str)
+            None => parse_ta_token(&entry, false, &filtered_str).map(ParsedDate::Relative),
-                .map(|timeago| ParsedDate::Relative(timeago)),
         },
         1 => parse_ta_token(&entry, false, &filtered_str)
             .map(|timeago| ParsedDate::Relative(timeago * nums[0] as u8)),
@@ -189,7 +182,7 @@ pub fn parse_textual_date(lang: Language, textual_date: &str) -> Option<ParsedDa
                 match (y, m, d) {
                     (Some(y), Some(m), Some(d)) => {
                         NaiveDate::from_ymd_opt(y.into(), m.into(), d.into())
-                            .map(|d| ParsedDate::Absolute(d))
+                            .map(ParsedDate::Absolute)
                     }
                     _ => None,
                 }

src/util.rs

@@ -41,16 +41,15 @@ pub fn generate_content_playback_nonce() -> String {
 ///
 /// `example.com/api?k1=v1&k2=v2 => example.com/api; {k1: v1, k2: v2}`
 pub fn url_to_params(url: &str) -> Result<(String, BTreeMap<String, String>)> {
-    let parsed_url = Url::parse(url)?;
+    let mut parsed_url = Url::parse(url)?;
     let url_params: BTreeMap<String, String> = parsed_url
         .query_pairs()
         .map(|(k, v)| (k.to_string(), v.to_string()))
         .collect();
 
-    let mut url_base = parsed_url.clone();
+    parsed_url.set_query(None);
-    url_base.set_query(None);
 
-    Ok((url_base.to_string(), url_params))
+    Ok((parsed_url.to_string(), url_params))
 }
 
 /// Parse a string after removing all non-numeric characters
@@ -90,6 +89,21 @@ where
     numbers
 }
 
+pub fn retry_delay(
+    n_past_retries: u32,
+    min_retry_interval: u32,
+    max_retry_interval: u32,
+    backoff_base: u32,
+) -> u32 {
+    let unjittered_delay = backoff_base.checked_pow(n_past_retries).unwrap_or(u32::MAX);
+    let jitter_factor = rand::thread_rng().gen_range(800..1500);
+    let jittered_delay = unjittered_delay
+        .checked_mul(jitter_factor)
+        .unwrap_or(u32::MAX);
+
+    min_retry_interval.max(jittered_delay.min(max_retry_interval))
+}
+
 #[cfg(test)]
 mod tests {
     use rstest::rstest;
@@ -112,4 +126,20 @@ mod tests {
         let n = parse_numeric_vec::<u32>(string);
         assert_eq!(n, expect);
     }
+
+    #[rstest]
+    #[case(0, 800, 1500)]
+    #[case(1, 2400, 4500)]
+    #[case(2, 7200, 13500)]
+    #[case(100, 60000, 60000)]
+    fn t_retry_delay(#[case] n: u32, #[case] expect_min: u32, #[case] expect_max: u32) {
+        let res = retry_delay(n, 1000, 60000, 3);
+        assert!(
+            res >= expect_min && res <= expect_max,
+            "res: {} not within {} and {}",
+            res,
+            expect_min,
+            expect_max
+        );
+    }
 }