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Add proper support for proxies

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There are situations where you want tt-rss to use a proxy (e.g.
because of network restrictions, or privacy concerns).
tt-rss already comes with an undocumented `_CURL_HTTP_PROXY`
variable (see eg https://binfalse.de/2015/05/06/ttrss-with-proxy/),
however that won't have an effect when, for example, php-curl is
not installed, see
c30f5e1811/include/functions.php (L377)
In this case it would use the `file_get_contents` with a stream
context without a proxy definition:
c30f5e1811/include/functions.php (L487)

Here I propose to properly support proxies, and I introduced a
`PROXY` variable, that is respected in both scenarios, with and
without curl installed.
This commit is contained in:
martin scharm
2018-01-14 00:30:22 +01:00
parent c30f5e1811
commit ea55f2e11c
2 changed files with 22 additions and 18 deletions
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5
config.php-dist
View File

@@ -196,4 +196,9 @@
// Expected config version. Please update this option in config.php // Expected config version. Please update this option in config.php
// if necessary (after migrating all new options from this file). // if necessary (after migrating all new options from this file).
define('PROXY', '');
// Connect to RSS feeds through a PROXY, this way tt-rss won't connect to
// webservers directly.
// Example format: '127.0.0.1:8123' (polipo proxy running on localhost)
// vim:ft=php // vim:ft=php

35
include/functions.php
View File

@@ -402,8 +402,8 @@
curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null"); curl_setopt($ch, CURLOPT_COOKIEJAR, "/dev/null");
} }
if (defined('_CURL_HTTP_PROXY')) { if (defined('PROXY')) {
curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY); curl_setopt($ch, CURLOPT_PROXY, PROXY);
} }
if ($post_query) { if ($post_query) {
@@ -483,25 +483,24 @@
// TODO: should this support POST requests or not? idk // TODO: should this support POST requests or not? idk
$context_options = array(
'http' => array(
'method' => 'GET',
'ignore_errors' => true,
'timeout' => $timeout ? $timeout : FILE_FETCH_TIMEOUT,
'protocol_version'=> 1.1)
);
if (!$post_query && $last_modified) { if (!$post_query && $last_modified) {
$context = stream_context_create(array( $context_options['http']['header'] = "If-Modified-Since: $last_modified\r\n";
'http' => array(
'method' => 'GET',
'ignore_errors' => true,
'timeout' => $timeout ? $timeout : FILE_FETCH_TIMEOUT,
'protocol_version'=> 1.1,
'header' => "If-Modified-Since: $last_modified\r\n")
));
} else {
$context = stream_context_create(array(
'http' => array(
'method' => 'GET',
'ignore_errors' => true,
'timeout' => $timeout ? $timeout : FILE_FETCH_TIMEOUT,
'protocol_version'=> 1.1
)));
} }
if (defined('PROXY')) {
$context_options['http']['proxy'] = PROXY;
}
$context = stream_context_create($context_options);
$old_error = error_get_last(); $old_error = error_get_last();
$data = @file_get_contents($url, false, $context); $data = @file_get_contents($url, false, $context);