pangolin/server/lib/traefik/utils.ts
2025-10-06 09:55:35 -07:00

81 lines
2.5 KiB
TypeScript

import logger from "@server/logger";
export function sanitize(input: string | null | undefined): string | undefined {
if (!input) return undefined;
// clean any non alphanumeric characters from the input and replace with dashes
// the input cant be too long either, so limit to 50 characters
if (input.length > 50) {
input = input.substring(0, 50);
}
return input
.replace(/[^a-zA-Z0-9-]/g, "-")
.replace(/-+/g, "-")
.replace(/^-|-$/g, "");
}
export function validatePathRewriteConfig(
path: string | null,
pathMatchType: string | null,
rewritePath: string | null,
rewritePathType: string | null
): { isValid: boolean; error?: string } {
// If no path matching is configured, no rewriting is possible
if (!path || !pathMatchType) {
if (rewritePath || rewritePathType) {
return {
isValid: false,
error: "Path rewriting requires path matching to be configured"
};
}
return { isValid: true };
}
if (rewritePathType !== "stripPrefix") {
if ((rewritePath && !rewritePathType) || (!rewritePath && rewritePathType)) {
return { isValid: false, error: "Both rewritePath and rewritePathType must be specified together" };
}
}
if (!rewritePath || !rewritePathType) {
return { isValid: true };
}
const validPathMatchTypes = ["exact", "prefix", "regex"];
if (!validPathMatchTypes.includes(pathMatchType)) {
return {
isValid: false,
error: `Invalid pathMatchType: ${pathMatchType}. Must be one of: ${validPathMatchTypes.join(", ")}`
};
}
const validRewritePathTypes = ["exact", "prefix", "regex", "stripPrefix"];
if (!validRewritePathTypes.includes(rewritePathType)) {
return {
isValid: false,
error: `Invalid rewritePathType: ${rewritePathType}. Must be one of: ${validRewritePathTypes.join(", ")}`
};
}
if (pathMatchType === "regex") {
try {
new RegExp(path);
} catch (e) {
return {
isValid: false,
error: `Invalid regex pattern in path: ${path}`
};
}
}
// Additional validation for stripPrefix
if (rewritePathType === "stripPrefix") {
if (pathMatchType !== "prefix") {
logger.warn(`stripPrefix rewrite type is most effective with prefix path matching. Current match type: ${pathMatchType}`);
}
}
return { isValid: true };
}