d0zingcat/cors-anywhere
1
0
Fork 0
mirror of https://github.com/d0zingcat/cors-anywhere.git synced 2026-05-13 15:09:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add X-Final-URL

Browse Source
This commit is contained in:
Rob Wu
2013-08-29 10:02:30 +02:00
parent 721ba7609d
commit a56fb8843c
2 changed files with 13 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
lib/cors-anywhere.js
View File

@@ -64,7 +64,7 @@ function withCORS(headers, request) {
var exposedHeaders = headers['access-control-expose-headers'] || '';
if (!/,\s*location\s*,/i.test(','+exposedHeaders+',')) exposedHeaders += ',location';
if (!/,\s*x-request-url\s*,/i.test(','+exposedHeaders+',')) exposedHeaders += ',x-request-url';
if (!/,\s*x-request-url\s*,/i.test(','+exposedHeaders+',')) exposedHeaders += ',x-request-url,x-final-url';
if (exposedHeaders.charAt(0) === ',') exposedHeaders = exposedHeaders.substr(1);
headers['access-control-expose-headers'] = exposedHeaders;
@@ -121,6 +121,10 @@ function onProxyResponse(req, res, response) {
var requestState = req.corsAnywhereRequestState;
var statusCode = response.statusCode;
if (!requestState.redirectCount_) {
res.setHeader('x-request-url', requestState.location.full_url);
}
// Handle redirects
if (statusCode === 301 || statusCode === 302 || statusCode === 303 || statusCode === 307 || statusCode === 308) {
var locationHeader = response.headers['location'];
@@ -129,7 +133,7 @@ function onProxyResponse(req, res, response) {
if (statusCode === 301 || statusCode === 302 || statusCode === 303) {
// Exclude 307 & 308, because they are rare, and require preserving the method + request body
requestState.redirectCount_ = requestState.requestState_ + 1 || 1;
requestState.redirectCount_ = requestState.redirectCount_ + 1 || 1;
if (requestState.redirectCount_ <= requestState.maxRedirects) {
// Handle redirects within the server, because some clients (e.g. Android Stock Browser)
// cancel redirects.
@@ -139,8 +143,7 @@ function onProxyResponse(req, res, response) {
req.method = 'GET';
requestState.location = parseURL(locationHeader);
proxyRequest(req, res, proxy);
// TODO: Is it possible to trigger reverseProxy.end() (from node-http-proxy) without
// manually emiting the "event" event on req?
// Trigger reverseProxy.end() to initiate the proxy
req.emit('end');
response.end();
@@ -158,7 +161,7 @@ function onProxyResponse(req, res, response) {
delete response.headers['set-cookie'];
delete response.headers['set-cookie2'];
response.headers['x-request-url'] = requestState.location.full_url;
response.headers['x-final-url'] = requestState.location.full_url;
}

8
lib/help.txt
View File

@@ -11,11 +11,13 @@ If the protocol is omitted, it defaults to http (https if port 443 is specified)
Cookies are disabled and stripped from requests.
Redirects are automatically followed. For debugging purposes, each followed redirect results
in the addition of a X-CORS-Redirect-n header, where n starts at 1. This header is not
in the addition of a X-CORS-Redirect-n header, where n starts at 1. These headers are not
accessible by the XMLHttpRequest API.
After 5 redirects, redirects are not followed any more. The redirect response is sent back
to the browser, which can choose to follow the redirect (handled automatically by the browser).
The final request URL is available in the X-Request-URL response header. Non-existence of
this header implies that the requested URL was not recognized.
The requested URL is available in the X-Request-URL response header.
The final URL, after following all redirects, is available in the X-Final-URL response header.
To prevent the use of the proxy for casual browsing, the API requires either the Origin