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avformat/http,tls: honor http_proxy command line variable for HTTPS

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Add the "http_proxy" option and its handling to the "tls" protocol,
pass the option from the "https" protocol.

The "https" protocol already defines the "http_proxy" command line
option, like the "http" protocol does. The "http" protocol properly
honors that command line option in addition to the environment
variable. The "https" protocol doesn't, because the proxy is
evaluated in the underlying "tls" protocol, which doesn't have this
option, and thus only handles the environment variable, which it
has access to.

Fixes #7223.

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Moritz Barsnick 2020-08-23 13:53:39 +02:00 committed by Marton Balint
parent 4892060f50
commit 94b63e8ae8
4 changed files with 14 additions and 2 deletions
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4
doc/protocols.texi
View File

@ -1772,6 +1772,10 @@ A file containing the private key for the certificate.
If enabled, listen for connections on the provided port, and assume
the server role in the handshake instead of the client role.
@item http_proxy
The HTTP proxy to tunnel through, e.g. @code{http://example.com:1234}.
The proxy must support the CONNECT method.
@end table
Example command lines:

6
libavformat/http.c
View File

@ -214,6 +214,12 @@ static int http_open_cnx_internal(URLContext *h, AVDictionary **options)
use_proxy = 0;
if (port < 0)
port = 443;
/* pass http_proxy to underlying protocol */
if (s->http_proxy) {
err = av_dict_set(options, "http_proxy", s->http_proxy, 0);
if (err < 0)
return err;
}
}
if (port < 0)
port = 80;

2
libavformat/tls.c
View File

@ -89,7 +89,7 @@ int ff_tls_open_underlying(TLSShared *c, URLContext *parent, const char *uri, AV
if (!c->host && !(c->host = av_strdup(c->underlying_host)))
return AVERROR(ENOMEM);
proxy_path = getenv("http_proxy");
proxy_path = c->http_proxy ? c->http_proxy : getenv("http_proxy");
use_proxy = !ff_http_match_no_proxy(getenv("no_proxy"), c->underlying_host) &&
proxy_path && av_strstart(proxy_path, "http://", NULL);

4
libavformat/tls.h
View File

@ -34,6 +34,7 @@ typedef struct TLSShared {
int listen;
char *host;
char *http_proxy;
char underlying_host[200];
int numerichost;
@ -49,7 +50,8 @@ typedef struct TLSShared {
{"cert_file", "Certificate file", offsetof(pstruct, options_field . cert_file), AV_OPT_TYPE_STRING, .flags = TLS_OPTFL }, \
{"key_file", "Private key file", offsetof(pstruct, options_field . key_file), AV_OPT_TYPE_STRING, .flags = TLS_OPTFL }, \
{"listen", "Listen for incoming connections", offsetof(pstruct, options_field . listen), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = TLS_OPTFL }, \
{"verifyhost", "Verify against a specific hostname", offsetof(pstruct, options_field . host), AV_OPT_TYPE_STRING, .flags = TLS_OPTFL }
{"verifyhost", "Verify against a specific hostname", offsetof(pstruct, options_field . host), AV_OPT_TYPE_STRING, .flags = TLS_OPTFL }, \
{"http_proxy", "Set proxy to tunnel through", offsetof(pstruct, options_field . http_proxy), AV_OPT_TYPE_STRING, .flags = TLS_OPTFL }
int ff_tls_open_underlying(TLSShared *c, URLContext *parent, const char *uri, AVDictionary **options);