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http: Refactor http_open_cnx

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Split return value handling from the actual opening.

Incidentally fixes the https -> http redirect issue reported by
Compn on behalf of rcombs.

CC: libav-stable@libav.org
This commit is contained in:
Luca Barbato 2014-08-02 13:29:02 +02:00
parent fbc0b86599
commit 6a463e7fb4
1 changed files with 24 additions and 12 deletions
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36
libavformat/http.c
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@ -132,21 +132,16 @@ void ff_http_init_auth_state(URLContext *dest, const URLContext *src)
sizeof(HTTPAuthState));
}
/* return non zero if error */
static int http_open_cnx(URLContext *h, AVDictionary **options)
static int http_open_cnx_internal(URLContext *h, AVDictionary **options)
{
const char *path, *proxy_path, *lower_proto = "tcp", *local_path;
char hostname[1024], hoststr[1024], proto[10];
char auth[1024], proxyauth[1024] = "";
char path1[MAX_URL_SIZE];
char buf[1024], urlbuf[MAX_URL_SIZE];
int port, use_proxy, err, location_changed = 0, redirects = 0, attempts = 0;
HTTPAuthType cur_auth_type, cur_proxy_auth_type;
int port, use_proxy, err, location_changed = 0;
HTTPContext *s = h->priv_data;
/* fill the dest addr */
redo:
/* needed in any case to build the host string */
av_url_split(proto, sizeof(proto), auth, sizeof(auth),
hostname, sizeof(hostname), &port,
path1, sizeof(path1), s->location);
@ -186,15 +181,32 @@ redo:
err = ffurl_open(&s->hd, buf, AVIO_FLAG_READ_WRITE,
&h->interrupt_callback, options);
if (err < 0)
goto fail;
return err;
}
err = http_connect(h, path, local_path, hoststr,
auth, proxyauth, &location_changed);
if (err < 0)
return err;
return location_changed;
}
/* return non zero if error */
static int http_open_cnx(URLContext *h, AVDictionary **options)
{
HTTPAuthType cur_auth_type, cur_proxy_auth_type;
HTTPContext *s = h->priv_data;
int location_changed, attempts = 0, redirects = 0;
redo:
location_changed = http_open_cnx_internal(h, options);
if (location_changed < 0)
goto fail;
attempts++;
cur_auth_type = s->auth_state.auth_type;
cur_proxy_auth_type = s->auth_state.auth_type;
if (http_connect(h, path, local_path, hoststr,
auth, proxyauth, &location_changed) < 0)
goto fail;
attempts++;
if (s->http_code == 401) {
if ((cur_auth_type == HTTP_AUTH_NONE || s->auth_state.stale) &&
s->auth_state.auth_type != HTTP_AUTH_NONE && attempts < 4) {