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feat(har): disambiguate using matching headers (#14995)

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Pavel Feldman 2022-06-20 16:41:53 -07:00 committed by GitHub
parent 45ec2d0825
commit aaafb77036
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1 changed files with 26 additions and 6 deletions
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32
packages/playwright-core/src/server/dispatchers/localUtilsDispatcher.ts
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@ -24,7 +24,7 @@ import type { DispatcherScope } from './dispatcher';
import { Dispatcher } from './dispatcher';
import { yazl, yauzl } from '../../zipBundle';
import { ZipFile } from '../../utils/zipFile';
import type { HAREntry, HARFile } from '../../../types/har';
import type { HAREntry, HARFile, HARHeader } from '../../../types/har';
import type { HeadersArray } from '../types';
export class LocalUtilsDispatcher extends Dispatcher<{ guid: string }, channels.LocalUtilsChannel> implements channels.LocalUtilsChannel {
@ -203,7 +203,7 @@ class HarBackend {
if (entries.length > 1) {
// Disambiguating requests
// 1. Disambiguate by postData - this covers GraphQL
// 1. Disambiguate using postData - this covers GraphQL
if (!entry && postData) {
for (const candidate of entries) {
if (!candidate.request.postData)
@ -216,12 +216,21 @@ class HarBackend {
}
}
// TODO: disambiguate by headers.
// Last. Disambiguate using headers - then one with most matching headers wins.
if (!entry) {
const list: { candidate: HAREntry, matchingHeaders: number }[] = [];
for (const candidate of entries) {
const matchingHeaders = countMatchingHeaders(candidate.request.headers, headers);
list.push({ candidate, matchingHeaders });
}
list.sort((a, b) => b.matchingHeaders - a.matchingHeaders);
entry = list[0].candidate;
}
} else {
entry = entries[0];
}
// Fall back to first entry.
if (!entry)
entry = entries[0];
if (visited.has(entry))
throw new Error(`Found redirect cycle for ${url}`);
@ -249,3 +258,14 @@ class HarBackend {
this._zipFile?.close();
}
}
function countMatchingHeaders(harHeaders: HARHeader[], headers: HeadersArray): number {
const set = new Set(headers.map(h => h.name.toLowerCase() + ':' + h.value));
let matches = 0;
for (const h of harHeaders) {
if (set.has(h.name.toLowerCase() + ':' + h.value))
++matches;
}
return matches;
}