You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.1 KiB
67 lines
2.1 KiB
1 month ago
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.createPathRewriter = void 0;
|
||
|
|
const isPlainObj = require("is-plain-obj");
|
||
|
|
const errors_1 = require("./errors");
|
||
|
|
const logger_1 = require("./logger");
|
||
|
|
const logger = (0, logger_1.getInstance)();
|
||
|
|
/**
|
||
|
|
* Create rewrite function, to cache parsed rewrite rules.
|
||
|
|
*
|
||
|
|
* @param {Object} rewriteConfig
|
||
|
|
* @return {Function} Function to rewrite paths; This function should accept `path` (request.url) as parameter
|
||
|
|
*/
|
||
|
|
function createPathRewriter(rewriteConfig) {
|
||
|
|
let rulesCache;
|
||
|
|
if (!isValidRewriteConfig(rewriteConfig)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (typeof rewriteConfig === 'function') {
|
||
|
|
const customRewriteFn = rewriteConfig;
|
||
|
|
return customRewriteFn;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
rulesCache = parsePathRewriteRules(rewriteConfig);
|
||
|
|
return rewritePath;
|
||
|
|
}
|
||
|
|
function rewritePath(path) {
|
||
|
|
let result = path;
|
||
|
|
for (const rule of rulesCache) {
|
||
|
|
if (rule.regex.test(path)) {
|
||
|
|
result = result.replace(rule.regex, rule.value);
|
||
|
|
logger.debug('[HPM] Rewriting path from "%s" to "%s"', path, result);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.createPathRewriter = createPathRewriter;
|
||
|
|
function isValidRewriteConfig(rewriteConfig) {
|
||
|
|
if (typeof rewriteConfig === 'function') {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else if (isPlainObj(rewriteConfig)) {
|
||
|
|
return Object.keys(rewriteConfig).length !== 0;
|
||
|
|
}
|
||
|
|
else if (rewriteConfig === undefined || rewriteConfig === null) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
throw new Error(errors_1.ERRORS.ERR_PATH_REWRITER_CONFIG);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function parsePathRewriteRules(rewriteConfig) {
|
||
|
|
const rules = [];
|
||
|
|
if (isPlainObj(rewriteConfig)) {
|
||
|
|
for (const [key] of Object.entries(rewriteConfig)) {
|
||
|
|
rules.push({
|
||
|
|
regex: new RegExp(key),
|
||
|
|
value: rewriteConfig[key],
|
||
|
|
});
|
||
|
|
logger.info('[HPM] Proxy rewrite rule created: "%s" ~> "%s"', key, rewriteConfig[key]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return rules;
|
||
|
|
}
|