/*
- * HTTP protocol for avconv client
+ * HTTP protocol for ffmpeg client
* Copyright (c) 2000, 2001 Fabrice Bellard
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zlib.h>
#endif
-/* XXX: POST protocol is not completely implemented because avconv uses
+/* XXX: POST protocol is not completely implemented because ffmpeg uses
only a subset of it. */
/* The IO buffer size is unrelated to the max URL size in itself, but needs
/* Set if the server correctly handles Connection: close and will close
* the connection after feeding us the content. */
int willclose;
+ int seekable; /**< Control seekability, 0 = disable, 1 = enable, -1 = probe. */
int chunked_post;
/* A flag which indicates if the end of chunked encoding has been sent. */
int end_chunked_post;
int multiple_requests;
uint8_t *post_data;
int post_datalen;
+ int is_akamai;
+ int is_mediagateway;
+ char *cookies; ///< holds newline (\n) delimited Set-Cookie header field values (without the "Set-Cookie: " field name)
int icy;
/* how much data was read since the last ICY metadata packet */
int icy_data_read;
#define E AV_OPT_FLAG_ENCODING_PARAM
#define DEFAULT_USER_AGENT "Lavf/" AV_STRINGIFY(LIBAVFORMAT_VERSION)
static const AVOption options[] = {
+{"seekable", "control seekability of connection", OFFSET(seekable), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, D },
{"chunked_post", "use chunked transfer-encoding for posts", OFFSET(chunked_post), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, E },
{"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { 0 }, 0, 0, D|E },
{"content_type", "set a specific content type for the POST messages", OFFSET(content_type), AV_OPT_TYPE_STRING, { 0 }, 0, 0, D|E },
{"user_agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = DEFAULT_USER_AGENT}, 0, 0, D },
-{"user-agent", "override User-Agent header, for compatibility with ffmpeg", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = DEFAULT_USER_AGENT}, 0, 0, D },
+{"user-agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = DEFAULT_USER_AGENT}, 0, 0, D },
{"multiple_requests", "use persistent connections", OFFSET(multiple_requests), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, D|E },
{"post_data", "set custom HTTP post data", OFFSET(post_data), AV_OPT_TYPE_BINARY, .flags = D|E },
{"mime_type", "export the MIME type", OFFSET(mime_type), AV_OPT_TYPE_STRING, {0}, 0, 0, AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY },
+{"cookies", "set cookies to be sent in applicable future requests, use newline delimited Set-Cookie HTTP field value syntax", OFFSET(cookies), AV_OPT_TYPE_STRING, {0}, 0, 0, D },
{"icy", "request ICY metadata", OFFSET(icy), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, D },
{"icy_metadata_headers", "return ICY metadata headers", OFFSET(icy_metadata_headers), AV_OPT_TYPE_STRING, {0}, 0, 0, AV_OPT_FLAG_EXPORT },
{"icy_metadata_packet", "return current ICY metadata packet", OFFSET(icy_metadata_packet), AV_OPT_TYPE_STRING, {0}, 0, 0, AV_OPT_FLAG_EXPORT },
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) {
- ffurl_close(s->hd);
- s->hd = NULL;
+ ffurl_closep(&s->hd);
goto redo;
} else
goto fail;
if (s->http_code == 407) {
if ((cur_proxy_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && attempts < 4) {
- ffurl_close(s->hd);
- s->hd = NULL;
+ ffurl_closep(&s->hd);
goto redo;
} else
goto fail;
if ((s->http_code == 301 || s->http_code == 302 || s->http_code == 303 || s->http_code == 307)
&& location_changed == 1) {
/* url moved, get next */
- ffurl_close(s->hd);
- s->hd = NULL;
+ ffurl_closep(&s->hd);
if (redirects++ >= MAX_REDIRECTS)
return AVERROR(EIO);
/* Restart the authentication process with the new target, which
return 0;
fail:
if (s->hd)
- ffurl_close(s->hd);
- s->hd = NULL;
+ ffurl_closep(&s->hd);
return AVERROR(EIO);
}
HTTPContext *s = h->priv_data;
int ret;
- h->is_streamed = 1;
+ if( s->seekable == 1 )
+ h->is_streamed = 0;
+ else
+ h->is_streamed = 1;
s->filesize = -1;
s->location = av_strdup(uri);
if ((slash = strchr(p, '/')) && strlen(slash) > 0)
s->filesize = strtoll(slash+1, NULL, 10);
}
- h->is_streamed = 0; /* we _can_ in fact seek */
+ if (s->seekable == -1 && (!s->is_akamai || s->filesize != 2147483647))
+ h->is_streamed = 0; /* we _can_ in fact seek */
}
static int parse_content_encoding(URLContext *h, const char *p)
// the header at all if this is the case).
} else {
av_log(h, AV_LOG_WARNING, "Unknown content coding: %s\n", p);
- return AVERROR(ENOSYS);
}
return 0;
}
p++;
s->http_code = strtol(p, &end, 10);
- av_dlog(NULL, "http_code=%d\n", s->http_code);
+ av_log(h, AV_LOG_DEBUG, "http_code=%d\n", s->http_code);
if ((ret = check_http_code(h, s->http_code, end)) < 0)
return ret;
} else if (!av_strcasecmp(tag, "Content-Range")) {
parse_content_range(h, p);
} else if (!av_strcasecmp(tag, "Accept-Ranges") &&
- !strncmp(p, "bytes", 5)) {
+ !strncmp(p, "bytes", 5) &&
+ s->seekable == -1) {
h->is_streamed = 0;
} else if (!av_strcasecmp(tag, "Transfer-Encoding") &&
!av_strncasecmp(p, "chunked", 7)) {
} else if (!av_strcasecmp(tag, "Connection")) {
if (!strcmp(p, "close"))
s->willclose = 1;
+ } else if (!av_strcasecmp (tag, "Server")) {
+ if (!av_strcasecmp (p, "AkamaiGHost")) {
+ s->is_akamai = 1;
+ } else if (!av_strncasecmp (p, "MediaGateway", 12)) {
+ s->is_mediagateway = 1;
+ }
} else if (!av_strcasecmp (tag, "Content-Type")) {
av_free(s->mime_type);
s->mime_type = av_strdup(p);
+ } else if (!av_strcasecmp (tag, "Set-Cookie")) {
+ if (!s->cookies) {
+ if (!(s->cookies = av_strdup(p)))
+ return AVERROR(ENOMEM);
+ } else {
+ char *tmp = s->cookies;
+ size_t str_size = strlen(tmp) + strlen(p) + 2;
+ if (!(s->cookies = av_malloc(str_size))) {
+ s->cookies = tmp;
+ return AVERROR(ENOMEM);
+ }
+ snprintf(s->cookies, str_size, "%s\n%s", tmp, p);
+ av_free(tmp);
+ }
} else if (!av_strcasecmp (tag, "Icy-MetaInt")) {
s->icy_metaint = strtoll(p, NULL, 10);
} else if (!av_strncasecmp(tag, "Icy-", 4)) {
return 1;
}
+/**
+ * Create a string containing cookie values for use as a HTTP cookie header
+ * field value for a particular path and domain from the cookie values stored in
+ * the HTTP protocol context. The cookie string is stored in *cookies.
+ *
+ * @return a negative value if an error condition occurred, 0 otherwise
+ */
+static int get_cookies(HTTPContext *s, char **cookies, const char *path,
+ const char *domain)
+{
+ // cookie strings will look like Set-Cookie header field values. Multiple
+ // Set-Cookie fields will result in multiple values delimited by a newline
+ int ret = 0;
+ char *next, *cookie, *set_cookies = av_strdup(s->cookies), *cset_cookies = set_cookies;
+
+ if (!set_cookies) return AVERROR(EINVAL);
+
+ *cookies = NULL;
+ while ((cookie = av_strtok(set_cookies, "\n", &next))) {
+ int domain_offset = 0;
+ char *param, *next_param, *cdomain = NULL, *cpath = NULL, *cvalue = NULL;
+ set_cookies = NULL;
+
+ while ((param = av_strtok(cookie, "; ", &next_param))) {
+ cookie = NULL;
+ if (!av_strncasecmp("path=", param, 5)) {
+ av_free(cpath);
+ cpath = av_strdup(¶m[5]);
+ } else if (!av_strncasecmp("domain=", param, 7)) {
+ // if the cookie specifies a sub-domain, skip the leading dot thereby
+ // supporting URLs that point to sub-domains and the master domain
+ int leading_dot = (param[7] == '.');
+ av_free(cdomain);
+ cdomain = av_strdup(¶m[7+leading_dot]);
+ } else if (!av_strncasecmp("secure", param, 6) ||
+ !av_strncasecmp("comment", param, 7) ||
+ !av_strncasecmp("max-age", param, 7) ||
+ !av_strncasecmp("version", param, 7)) {
+ // ignore Comment, Max-Age, Secure and Version
+ } else {
+ av_free(cvalue);
+ cvalue = av_strdup(param);
+ }
+ }
+ if (!cdomain)
+ cdomain = av_strdup(domain);
+
+ // ensure all of the necessary values are valid
+ if (!cdomain || !cpath || !cvalue) {
+ av_log(s, AV_LOG_WARNING,
+ "Invalid cookie found, no value, path or domain specified\n");
+ goto done_cookie;
+ }
+
+ // check if the request path matches the cookie path
+ if (av_strncasecmp(path, cpath, strlen(cpath)))
+ goto done_cookie;
+
+ // the domain should be at least the size of our cookie domain
+ domain_offset = strlen(domain) - strlen(cdomain);
+ if (domain_offset < 0)
+ goto done_cookie;
+
+ // match the cookie domain
+ if (av_strcasecmp(&domain[domain_offset], cdomain))
+ goto done_cookie;
+
+ // cookie parameters match, so copy the value
+ if (!*cookies) {
+ if (!(*cookies = av_strdup(cvalue))) {
+ ret = AVERROR(ENOMEM);
+ goto done_cookie;
+ }
+ } else {
+ char *tmp = *cookies;
+ size_t str_size = strlen(cvalue) + strlen(*cookies) + 3;
+ if (!(*cookies = av_malloc(str_size))) {
+ ret = AVERROR(ENOMEM);
+ goto done_cookie;
+ }
+ snprintf(*cookies, str_size, "%s; %s", tmp, cvalue);
+ av_free(tmp);
+ }
+
+ done_cookie:
+ av_free(cdomain);
+ av_free(cpath);
+ av_free(cvalue);
+ if (ret < 0) {
+ if (*cookies) av_freep(cookies);
+ av_free(cset_cookies);
+ return ret;
+ }
+ }
+
+ av_free(cset_cookies);
+
+ return 0;
+}
+
static inline int has_header(const char *str, const char *header)
{
/* header + 2 to skip over CRLF prefix. (make sure you have one!) */
if ((err = http_get_line(s, line, sizeof(line))) < 0)
return err;
- av_dlog(NULL, "header='%s'\n", line);
+ av_log(h, AV_LOG_DEBUG, "header='%s'\n", line);
err = process_line(h, line, s->line_count, new_location);
if (err < 0)
s->line_count++;
}
+ if (s->seekable == -1 && s->is_mediagateway && s->filesize == 2000000000)
+ h->is_streamed = 1; /* we can in fact _not_ seek */
+
return err;
}
{
HTTPContext *s = h->priv_data;
int post, err;
- char headers[1024] = "";
+ char headers[4096] = "";
char *authstr = NULL, *proxyauthstr = NULL;
int64_t off = s->off;
int len = 0;
// Note: we send this on purpose even when s->off is 0 when we're probing,
// since it allows us to detect more reliably if a (non-conforming)
// server supports seeking by analysing the reply headers.
- if (!has_header(s->headers, "\r\nRange: ") && !post) {
+ if (!has_header(s->headers, "\r\nRange: ") && !post && (s->off > 0 || s->end_off || s->seekable == -1)) {
len += av_strlcatf(headers + len, sizeof(headers) - len,
"Range: bytes=%"PRId64"-", s->off);
if (s->end_off)
if (!has_header(s->headers, "\r\nContent-Type: ") && s->content_type)
len += av_strlcatf(headers + len, sizeof(headers) - len,
"Content-Type: %s\r\n", s->content_type);
+ if (!has_header(s->headers, "\r\nCookie: ") && s->cookies) {
+ char *cookies = NULL;
+ if (!get_cookies(s, &cookies, path, hoststr)) {
+ len += av_strlcatf(headers + len, sizeof(headers) - len,
+ "Cookie: %s\r\n", cookies);
+ av_free(cookies);
+ }
+ }
if (!has_header(s->headers, "\r\nIcy-MetaData: ") && s->icy) {
len += av_strlcatf(headers + len, sizeof(headers) - len,
"Icy-MetaData: %d\r\n", 1);
av_freep(&authstr);
av_freep(&proxyauthstr);
+
+ av_log(h, AV_LOG_DEBUG, "request: %s\n", s->buffer);
+
if ((err = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0)
return err;
return http_buf_read(h, buf, size);
}
+// Like http_read_stream(), but no short reads.
+// Assumes partial reads are an error.
static int http_read_stream_all(URLContext *h, uint8_t *buf, int size)
{
int pos = 0;
}
if (s->hd)
- ffurl_close(s->hd);
+ ffurl_closep(&s->hd);
av_dict_free(&s->chained_options);
return ret;
}
else if ((s->filesize == -1 && whence == SEEK_END) || h->is_streamed)
return AVERROR(ENOSYS);
- /* we save the old context in case the seek fails */
- old_buf_size = s->buf_end - s->buf_ptr;
- memcpy(old_buf, s->buf_ptr, old_buf_size);
- s->hd = NULL;
if (whence == SEEK_CUR)
off += s->off;
else if (whence == SEEK_END)
off += s->filesize;
+ else if (whence != SEEK_SET)
+ return AVERROR(EINVAL);
+ if (off < 0)
+ return AVERROR(EINVAL);
s->off = off;
+ /* we save the old context in case the seek fails */
+ old_buf_size = s->buf_end - s->buf_ptr;
+ memcpy(old_buf, s->buf_ptr, old_buf_size);
+ s->hd = NULL;
+
/* if it fails, continue on old connection */
av_dict_copy(&options, s->chained_options, 0);
if ((ret = http_open_cnx(h, &options)) < 0) {
{
HTTPContext *s = h->priv_data;
if (s->hd)
- ffurl_close(s->hd);
+ ffurl_closep(&s->hd);
return 0;
}
char *authstr;
int new_loc;
- h->is_streamed = 1;
+ if( s->seekable == 1 )
+ h->is_streamed = 0;
+ else
+ h->is_streamed = 1;
av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
pathbuf, sizeof(pathbuf), uri);
if (s->http_code == 407 &&
(cur_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && attempts < 2) {
- ffurl_close(s->hd);
- s->hd = NULL;
+ ffurl_closep(&s->hd);
goto redo;
}
projects / ffmpeg / blobdiff