FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/http.c
Date: 2026-01-09 16:43:19
Exec Total Coverage
Lines: 0 1179 0.0%
Functions: 0 52 0.0%
Branches: 0 943 0.0%
Line Branch Exec Source
1 /*
2 * HTTP protocol for ffmpeg client
3 * Copyright (c) 2000, 2001 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <stdbool.h>
23
24 #include "config.h"
25 #include "config_components.h"
26
27 #include <string.h>
28 #include <time.h>
29 #if CONFIG_ZLIB
30 #include <zlib.h>
31 #endif /* CONFIG_ZLIB */
32
33 #include "libavutil/avassert.h"
34 #include "libavutil/avstring.h"
35 #include "libavutil/bprint.h"
36 #include "libavutil/getenv_utf8.h"
37 #include "libavutil/macros.h"
38 #include "libavutil/mem.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/time.h"
41 #include "libavutil/parseutils.h"
42
43 #include "avformat.h"
44 #include "http.h"
45 #include "httpauth.h"
46 #include "internal.h"
47 #include "network.h"
48 #include "os_support.h"
49 #include "url.h"
50 #include "version.h"
51
52 /* XXX: POST protocol is not completely implemented because ffmpeg uses
53 * only a subset of it. */
54
55 /* The IO buffer size is unrelated to the max URL size in itself, but needs
56 * to be large enough to fit the full request headers (including long
57 * path names). */
58 #define BUFFER_SIZE (MAX_URL_SIZE + HTTP_HEADERS_SIZE)
59 #define MAX_REDIRECTS 8
60 #define MAX_CACHED_REDIRECTS 32
61 #define HTTP_SINGLE 1
62 #define HTTP_MUTLI 2
63 #define MAX_DATE_LEN 19
64 #define WHITESPACES " \n\t\r"
65 typedef enum {
66 LOWER_PROTO,
67 READ_HEADERS,
68 WRITE_REPLY_HEADERS,
69 FINISH
70 }HandshakeState;
71
72 typedef struct HTTPContext {
73 const AVClass *class;
74 URLContext *hd;
75 unsigned char buffer[BUFFER_SIZE], *buf_ptr, *buf_end;
76 int line_count;
77 int http_code;
78 /* Used if "Transfer-Encoding: chunked" otherwise -1. */
79 uint64_t chunksize;
80 int chunkend;
81 uint64_t off, end_off, filesize;
82 char *uri;
83 char *location;
84 HTTPAuthState auth_state;
85 HTTPAuthState proxy_auth_state;
86 char *http_proxy;
87 char *headers;
88 char *mime_type;
89 char *http_version;
90 char *user_agent;
91 char *referer;
92 char *content_type;
93 /* Set if the server correctly handles Connection: close and will close
94 * the connection after feeding us the content. */
95 int willclose;
96 int seekable; /**< Control seekability, 0 = disable, 1 = enable, -1 = probe. */
97 int chunked_post;
98 /* A flag which indicates if the end of chunked encoding has been sent. */
99 int end_chunked_post;
100 /* A flag which indicates we have finished to read POST reply. */
101 int end_header;
102 /* A flag which indicates if we use persistent connections. */
103 int multiple_requests;
104 uint8_t *post_data;
105 int post_datalen;
106 int is_akamai;
107 int is_mediagateway;
108 char *cookies; ///< holds newline (\n) delimited Set-Cookie header field values (without the "Set-Cookie: " field name)
109 /* A dictionary containing cookies keyed by cookie name */
110 AVDictionary *cookie_dict;
111 int icy;
112 /* how much data was read since the last ICY metadata packet */
113 uint64_t icy_data_read;
114 /* after how many bytes of read data a new metadata packet will be found */
115 uint64_t icy_metaint;
116 char *icy_metadata_headers;
117 char *icy_metadata_packet;
118 AVDictionary *metadata;
119 #if CONFIG_ZLIB
120 int compressed;
121 z_stream inflate_stream;
122 uint8_t *inflate_buffer;
123 #endif /* CONFIG_ZLIB */
124 AVDictionary *chained_options;
125 /* -1 = try to send if applicable, 0 = always disabled, 1 = always enabled */
126 int send_expect_100;
127 char *method;
128 int reconnect;
129 int reconnect_at_eof;
130 int reconnect_on_network_error;
131 int reconnect_streamed;
132 int reconnect_delay_max;
133 char *reconnect_on_http_error;
134 int listen;
135 char *resource;
136 int reply_code;
137 int is_multi_client;
138 HandshakeState handshake_step;
139 int is_connected_server;
140 int short_seek_size;
141 int64_t expires;
142 char *new_location;
143 AVDictionary *redirect_cache;
144 uint64_t filesize_from_content_range;
145 int respect_retry_after;
146 unsigned int retry_after;
147 int reconnect_max_retries;
148 int reconnect_delay_total_max;
149 } HTTPContext;
150
151 #define OFFSET(x) offsetof(HTTPContext, x)
152 #define D AV_OPT_FLAG_DECODING_PARAM
153 #define E AV_OPT_FLAG_ENCODING_PARAM
154 #define DEFAULT_USER_AGENT "Lavf/" AV_STRINGIFY(LIBAVFORMAT_VERSION)
155
156 static const AVOption options[] = {
157 { "seekable", "control seekability of connection", OFFSET(seekable), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, D },
158 { "chunked_post", "use chunked transfer-encoding for posts", OFFSET(chunked_post), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, E },
159 { "http_proxy", "set HTTP proxy to tunnel through", OFFSET(http_proxy), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
160 { "headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
161 { "content_type", "set a specific content type for the POST messages", OFFSET(content_type), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
162 { "user_agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, { .str = DEFAULT_USER_AGENT }, 0, 0, D },
163 { "referer", "override referer header", OFFSET(referer), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D },
164 { "multiple_requests", "use persistent connections", OFFSET(multiple_requests), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D | E },
165 { "post_data", "set custom HTTP post data", OFFSET(post_data), AV_OPT_TYPE_BINARY, .flags = D | E },
166 { "mime_type", "export the MIME type", OFFSET(mime_type), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY },
167 { "http_version", "export the http response version", OFFSET(http_version), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY },
168 { "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, { .str = NULL }, 0, 0, D },
169 { "icy", "request ICY metadata", OFFSET(icy), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, D },
170 { "icy_metadata_headers", "return ICY metadata headers", OFFSET(icy_metadata_headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT },
171 { "icy_metadata_packet", "return current ICY metadata packet", OFFSET(icy_metadata_packet), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT },
172 { "metadata", "metadata read from the bitstream", OFFSET(metadata), AV_OPT_TYPE_DICT, {0}, 0, 0, AV_OPT_FLAG_EXPORT },
173 { "auth_type", "HTTP authentication type", OFFSET(auth_state.auth_type), AV_OPT_TYPE_INT, { .i64 = HTTP_AUTH_NONE }, HTTP_AUTH_NONE, HTTP_AUTH_BASIC, D | E, .unit = "auth_type"},
174 { "none", "No auth method set, autodetect", 0, AV_OPT_TYPE_CONST, { .i64 = HTTP_AUTH_NONE }, 0, 0, D | E, .unit = "auth_type"},
175 { "basic", "HTTP basic authentication", 0, AV_OPT_TYPE_CONST, { .i64 = HTTP_AUTH_BASIC }, 0, 0, D | E, .unit = "auth_type"},
176 { "send_expect_100", "Force sending an Expect: 100-continue header for POST", OFFSET(send_expect_100), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, E },
177 { "location", "The actual location of the data received", OFFSET(location), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
178 { "offset", "initial byte offset", OFFSET(off), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, D },
179 { "end_offset", "try to limit the request to bytes preceding this offset", OFFSET(end_off), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, D },
180 { "method", "Override the HTTP method or set the expected HTTP method from a client", OFFSET(method), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
181 { "reconnect", "auto reconnect after disconnect before EOF", OFFSET(reconnect), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
182 { "reconnect_at_eof", "auto reconnect at EOF", OFFSET(reconnect_at_eof), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
183 { "reconnect_on_network_error", "auto reconnect in case of tcp/tls error during connect", OFFSET(reconnect_on_network_error), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
184 { "reconnect_on_http_error", "list of http status codes to reconnect on", OFFSET(reconnect_on_http_error), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D },
185 { "reconnect_streamed", "auto reconnect streamed / non seekable streams", OFFSET(reconnect_streamed), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
186 { "reconnect_delay_max", "max reconnect delay in seconds after which to give up", OFFSET(reconnect_delay_max), AV_OPT_TYPE_INT, { .i64 = 120 }, 0, UINT_MAX/1000/1000, D },
187 { "reconnect_max_retries", "the max number of times to retry a connection", OFFSET(reconnect_max_retries), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, D },
188 { "reconnect_delay_total_max", "max total reconnect delay in seconds after which to give up", OFFSET(reconnect_delay_total_max), AV_OPT_TYPE_INT, { .i64 = 256 }, 0, UINT_MAX/1000/1000, D },
189 { "respect_retry_after", "respect the Retry-After header when retrying connections", OFFSET(respect_retry_after), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, D },
190 { "listen", "listen on HTTP", OFFSET(listen), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, D | E },
191 { "resource", "The resource requested by a client", OFFSET(resource), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
192 { "reply_code", "The http status code to return to a client", OFFSET(reply_code), AV_OPT_TYPE_INT, { .i64 = 200}, INT_MIN, 599, E},
193 { "short_seek_size", "Threshold to favor readahead over seek.", OFFSET(short_seek_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D },
194 { NULL }
195 };
196
197 static int http_connect(URLContext *h, const char *path, const char *local_path,
198 const char *hoststr, const char *auth,
199 const char *proxyauth);
200 static int http_read_header(URLContext *h);
201 static int http_shutdown(URLContext *h, int flags);
202
203 ✗ void ff_http_init_auth_state(URLContext *dest, const URLContext *src)
204 {
205 ✗ memcpy(&((HTTPContext *)dest->priv_data)->auth_state,
206 ✗ &((HTTPContext *)src->priv_data)->auth_state,
207 sizeof(HTTPAuthState));
208 ✗ memcpy(&((HTTPContext *)dest->priv_data)->proxy_auth_state,
209 ✗ &((HTTPContext *)src->priv_data)->proxy_auth_state,
210 sizeof(HTTPAuthState));
211 ✗ }
212
213 ✗ static int http_open_cnx_internal(URLContext *h, AVDictionary **options)
214 {
215 ✗ const char *path, *proxy_path, *lower_proto = "tcp", *local_path;
216 char *env_http_proxy, *env_no_proxy;
217 char *hashmark;
218 char hostname[1024], hoststr[1024], proto[10], tmp_host[1024];
219 ✗ char auth[1024], proxyauth[1024] = "";
220 char path1[MAX_URL_SIZE], sanitized_path[MAX_URL_SIZE + 1];
221 char buf[1024], urlbuf[MAX_URL_SIZE];
222 ✗ int port, use_proxy, err = 0;
223 ✗ HTTPContext *s = h->priv_data;
224
225 ✗ av_url_split(proto, sizeof(proto), auth, sizeof(auth),
226 hostname, sizeof(hostname), &port,
227 ✗ path1, sizeof(path1), s->location);
228
229 ✗ av_strlcpy(tmp_host, hostname, sizeof(tmp_host));
230 // In case of an IPv6 address, we need to strip the Zone ID,
231 // if any. We do it at the first % sign, as percent encoding
232 // can be used in the Zone ID itself.
233 ✗ if (strchr(tmp_host, ':'))
234 ✗ tmp_host[strcspn(tmp_host, "%")] = '\0';
235 ✗ ff_url_join(hoststr, sizeof(hoststr), NULL, NULL, tmp_host, port, NULL);
236
237 ✗ env_http_proxy = getenv_utf8("http_proxy");
238 ✗ proxy_path = s->http_proxy ? s->http_proxy : env_http_proxy;
239
240 ✗ env_no_proxy = getenv_utf8("no_proxy");
241 ✗ use_proxy = !ff_http_match_no_proxy(env_no_proxy, hostname) &&
242 ✗ proxy_path && av_strstart(proxy_path, "http://", NULL);
243 ✗ freeenv_utf8(env_no_proxy);
244
245 ✗ if (!strcmp(proto, "https")) {
246 ✗ lower_proto = "tls";
247 ✗ use_proxy = 0;
248 ✗ if (port < 0)
249 ✗ port = 443;
250 /* pass http_proxy to underlying protocol */
251 ✗ if (s->http_proxy) {
252 ✗ err = av_dict_set(options, "http_proxy", s->http_proxy, 0);
253 ✗ if (err < 0)
254 ✗ goto end;
255 }
256 }
257 ✗ if (port < 0)
258 ✗ port = 80;
259
260 ✗ hashmark = strchr(path1, '#');
261 ✗ if (hashmark)
262 ✗ *hashmark = '\0';
263
264 ✗ if (path1[0] == '\0') {
265 ✗ path = "/";
266 ✗ } else if (path1[0] == '?') {
267 ✗ snprintf(sanitized_path, sizeof(sanitized_path), "/%s", path1);
268 ✗ path = sanitized_path;
269 } else {
270 ✗ path = path1;
271 }
272 ✗ local_path = path;
273 ✗ if (use_proxy) {
274 /* Reassemble the request URL without auth string - we don't
275 * want to leak the auth to the proxy. */
276 ✗ ff_url_join(urlbuf, sizeof(urlbuf), proto, NULL, hostname, port, "%s",
277 path1);
278 ✗ path = urlbuf;
279 ✗ av_url_split(NULL, 0, proxyauth, sizeof(proxyauth),
280 hostname, sizeof(hostname), &port, NULL, 0, proxy_path);
281 }
282
283 ✗ ff_url_join(buf, sizeof(buf), lower_proto, NULL, hostname, port, NULL);
284
285 ✗ if (!s->hd) {
286 ✗ err = ffurl_open_whitelist(&s->hd, buf, AVIO_FLAG_READ_WRITE,
287 ✗ &h->interrupt_callback, options,
288 h->protocol_whitelist, h->protocol_blacklist, h);
289 }
290
291 ✗ end:
292 ✗ freeenv_utf8(env_http_proxy);
293 ✗ return err < 0 ? err : http_connect(
294 h, path, local_path, hoststr, auth, proxyauth);
295 }
296
297 ✗ static int http_should_reconnect(HTTPContext *s, int err)
298 {
299 const char *status_group;
300 char http_code[4];
301
302 ✗ switch (err) {
303 ✗ case AVERROR_HTTP_BAD_REQUEST:
304 case AVERROR_HTTP_UNAUTHORIZED:
305 case AVERROR_HTTP_FORBIDDEN:
306 case AVERROR_HTTP_NOT_FOUND:
307 case AVERROR_HTTP_TOO_MANY_REQUESTS:
308 case AVERROR_HTTP_OTHER_4XX:
309 ✗ status_group = "4xx";
310 ✗ break;
311
312 ✗ case AVERROR_HTTP_SERVER_ERROR:
313 ✗ status_group = "5xx";
314 ✗ break;
315
316 ✗ default:
317 ✗ return s->reconnect_on_network_error;
318 }
319
320 ✗ if (!s->reconnect_on_http_error)
321 ✗ return 0;
322
323 ✗ if (av_match_list(status_group, s->reconnect_on_http_error, ',') > 0)
324 ✗ return 1;
325
326 ✗ snprintf(http_code, sizeof(http_code), "%d", s->http_code);
327
328 ✗ return av_match_list(http_code, s->reconnect_on_http_error, ',') > 0;
329 }
330
331 ✗ static char *redirect_cache_get(HTTPContext *s)
332 {
333 AVDictionaryEntry *re;
334 int64_t expiry;
335 char *delim;
336
337 ✗ re = av_dict_get(s->redirect_cache, s->location, NULL, AV_DICT_MATCH_CASE);
338 ✗ if (!re) {
339 ✗ return NULL;
340 }
341
342 ✗ delim = strchr(re->value, ';');
343 ✗ if (!delim) {
344 ✗ return NULL;
345 }
346
347 ✗ expiry = strtoll(re->value, NULL, 10);
348 ✗ if (time(NULL) > expiry) {
349 ✗ return NULL;
350 }
351
352 ✗ return delim + 1;
353 }
354
355 ✗ static int redirect_cache_set(HTTPContext *s, const char *source, const char *dest, int64_t expiry)
356 {
357 char *value;
358 int ret;
359
360 ✗ value = av_asprintf("%"PRIi64";%s", expiry, dest);
361 ✗ if (!value) {
362 ✗ return AVERROR(ENOMEM);
363 }
364
365 ✗ ret = av_dict_set(&s->redirect_cache, source, value, AV_DICT_MATCH_CASE | AV_DICT_DONT_STRDUP_VAL);
366 ✗ if (ret < 0)
367 ✗ return ret;
368
369 ✗ return 0;
370 }
371
372 /* return non zero if error */
373 ✗ static int http_open_cnx(URLContext *h, AVDictionary **options)
374 {
375 HTTPAuthType cur_auth_type, cur_proxy_auth_type;
376 ✗ HTTPContext *s = h->priv_data;
377 ✗ int ret, conn_attempts = 1, auth_attempts = 0, redirects = 0;
378 ✗ int reconnect_delay = 0;
379 ✗ int reconnect_delay_total = 0;
380 uint64_t off;
381 char *cached;
382
383 ✗ redo:
384
385 ✗ cached = redirect_cache_get(s);
386 ✗ if (cached) {
387 ✗ av_free(s->location);
388 ✗ s->location = av_strdup(cached);
389 ✗ if (!s->location) {
390 ✗ ret = AVERROR(ENOMEM);
391 ✗ goto fail;
392 }
393 ✗ goto redo;
394 }
395
396 ✗ av_dict_copy(options, s->chained_options, 0);
397
398 ✗ cur_auth_type = s->auth_state.auth_type;
399 ✗ cur_proxy_auth_type = s->auth_state.auth_type;
400
401 ✗ off = s->off;
402 ✗ ret = http_open_cnx_internal(h, options);
403 ✗ if (ret < 0) {
404 ✗ if (!http_should_reconnect(s, ret) ||
405 ✗ reconnect_delay > s->reconnect_delay_max ||
406 ✗ (s->reconnect_max_retries >= 0 && conn_attempts > s->reconnect_max_retries) ||
407 ✗ reconnect_delay_total > s->reconnect_delay_total_max)
408 ✗ goto fail;
409
410 /* Both fields here are in seconds. */
411 ✗ if (s->respect_retry_after && s->retry_after > 0) {
412 ✗ reconnect_delay = s->retry_after;
413 ✗ if (reconnect_delay > s->reconnect_delay_max)
414 ✗ goto fail;
415 ✗ s->retry_after = 0;
416 }
417
418 ✗ av_log(h, AV_LOG_WARNING, "Will reconnect at %"PRIu64" in %d second(s).\n", off, reconnect_delay);
419 ✗ ret = ff_network_sleep_interruptible(1000U * 1000 * reconnect_delay, &h->interrupt_callback);
420 ✗ if (ret != AVERROR(ETIMEDOUT))
421 ✗ goto fail;
422 ✗ reconnect_delay_total += reconnect_delay;
423 ✗ reconnect_delay = 1 + 2 * reconnect_delay;
424 ✗ conn_attempts++;
425
426 /* restore the offset (http_connect resets it) */
427 ✗ s->off = off;
428
429 ✗ ffurl_closep(&s->hd);
430 ✗ goto redo;
431 }
432
433 ✗ auth_attempts++;
434 ✗ if (s->http_code == 401) {
435 ✗ if ((cur_auth_type == HTTP_AUTH_NONE || s->auth_state.stale) &&
436 ✗ s->auth_state.auth_type != HTTP_AUTH_NONE && auth_attempts < 4) {
437 ✗ ffurl_closep(&s->hd);
438 ✗ goto redo;
439 } else
440 ✗ goto fail;
441 }
442 ✗ if (s->http_code == 407) {
443 ✗ if ((cur_proxy_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
444 ✗ s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && auth_attempts < 4) {
445 ✗ ffurl_closep(&s->hd);
446 ✗ goto redo;
447 } else
448 ✗ goto fail;
449 }
450 ✗ if ((s->http_code == 301 || s->http_code == 302 ||
451 ✗ s->http_code == 303 || s->http_code == 307 || s->http_code == 308) &&
452 ✗ s->new_location) {
453 /* url moved, get next */
454 ✗ ffurl_closep(&s->hd);
455 ✗ if (redirects++ >= MAX_REDIRECTS)
456 ✗ return AVERROR(EIO);
457
458 ✗ if (!s->expires) {
459 ✗ s->expires = (s->http_code == 301 || s->http_code == 308) ? INT64_MAX : -1;
460 }
461
462 ✗ if (s->expires > time(NULL) && av_dict_count(s->redirect_cache) < MAX_CACHED_REDIRECTS) {
463 ✗ redirect_cache_set(s, s->location, s->new_location, s->expires);
464 }
465
466 ✗ av_free(s->location);
467 ✗ s->location = s->new_location;
468 ✗ s->new_location = NULL;
469
470 /* Restart the authentication process with the new target, which
471 * might use a different auth mechanism. */
472 ✗ memset(&s->auth_state, 0, sizeof(s->auth_state));
473 ✗ auth_attempts = 0;
474 ✗ goto redo;
475 }
476 ✗ return 0;
477
478 ✗ fail:
479 ✗ if (s->hd)
480 ✗ ffurl_closep(&s->hd);
481 ✗ if (ret < 0)
482 ✗ return ret;
483 ✗ return ff_http_averror(s->http_code, AVERROR(EIO));
484 }
485
486 ✗ int ff_http_do_new_request(URLContext *h, const char *uri) {
487 ✗ return ff_http_do_new_request2(h, uri, NULL);
488 }
489
490 ✗ int ff_http_do_new_request2(URLContext *h, const char *uri, AVDictionary **opts)
491 {
492 ✗ HTTPContext *s = h->priv_data;
493 ✗ AVDictionary *options = NULL;
494 int ret;
495 char hostname1[1024], hostname2[1024], proto1[10], proto2[10];
496 int port1, port2;
497
498 ✗ if (!h->prot ||
499 ✗ !(!strcmp(h->prot->name, "http") ||
500 ✗ !strcmp(h->prot->name, "https")))
501 ✗ return AVERROR(EINVAL);
502
503 ✗ av_url_split(proto1, sizeof(proto1), NULL, 0,
504 hostname1, sizeof(hostname1), &port1,
505 ✗ NULL, 0, s->location);
506 ✗ av_url_split(proto2, sizeof(proto2), NULL, 0,
507 hostname2, sizeof(hostname2), &port2,
508 NULL, 0, uri);
509 ✗ if (strcmp(proto1, proto2) != 0) {
510 ✗ av_log(h, AV_LOG_INFO, "Cannot reuse HTTP connection for different protocol %s vs %s\n",
511 proto1, proto2);
512 ✗ return AVERROR(EINVAL);
513 }
514 ✗ if (port1 != port2 || strncmp(hostname1, hostname2, sizeof(hostname2)) != 0) {
515 ✗ av_log(h, AV_LOG_INFO, "Cannot reuse HTTP connection for different host: %s:%d != %s:%d\n",
516 hostname1, port1,
517 hostname2, port2
518 );
519 ✗ return AVERROR(EINVAL);
520 }
521
522 ✗ if (!s->end_chunked_post) {
523 ✗ ret = http_shutdown(h, h->flags);
524 ✗ if (ret < 0)
525 ✗ return ret;
526 }
527
528 ✗ if (s->willclose)
529 ✗ return AVERROR_EOF;
530
531 ✗ s->end_chunked_post = 0;
532 ✗ s->chunkend = 0;
533 ✗ s->off = 0;
534 ✗ s->icy_data_read = 0;
535
536 ✗ av_free(s->location);
537 ✗ s->location = av_strdup(uri);
538 ✗ if (!s->location)
539 ✗ return AVERROR(ENOMEM);
540
541 ✗ av_free(s->uri);
542 ✗ s->uri = av_strdup(uri);
543 ✗ if (!s->uri)
544 ✗ return AVERROR(ENOMEM);
545
546 ✗ if ((ret = av_opt_set_dict(s, opts)) < 0)
547 ✗ return ret;
548
549 ✗ av_log(s, AV_LOG_INFO, "Opening \'%s\' for %s\n", uri, h->flags & AVIO_FLAG_WRITE ? "writing" : "reading");
550 ✗ ret = http_open_cnx(h, &options);
551 ✗ av_dict_free(&options);
552 ✗ return ret;
553 }
554
555 ✗ int ff_http_averror(int status_code, int default_averror)
556 {
557 ✗ switch (status_code) {
558 ✗ case 400: return AVERROR_HTTP_BAD_REQUEST;
559 ✗ case 401: return AVERROR_HTTP_UNAUTHORIZED;
560 ✗ case 403: return AVERROR_HTTP_FORBIDDEN;
561 ✗ case 404: return AVERROR_HTTP_NOT_FOUND;
562 ✗ case 429: return AVERROR_HTTP_TOO_MANY_REQUESTS;
563 ✗ default: break;
564 }
565 ✗ if (status_code >= 400 && status_code <= 499)
566 ✗ return AVERROR_HTTP_OTHER_4XX;
567 ✗ else if (status_code >= 500)
568 ✗ return AVERROR_HTTP_SERVER_ERROR;
569 else
570 ✗ return default_averror;
571 }
572
573 ✗ const char* ff_http_get_new_location(URLContext *h)
574 {
575 ✗ HTTPContext *s = h->priv_data;
576 ✗ return s->new_location;
577 }
578
579 ✗ static int http_write_reply(URLContext* h, int status_code)
580 {
581 ✗ int ret, body = 0, reply_code, message_len;
582 const char *reply_text, *content_type;
583 ✗ HTTPContext *s = h->priv_data;
584 char message[BUFFER_SIZE];
585 ✗ content_type = "text/plain";
586
587 ✗ if (status_code < 0)
588 ✗ body = 1;
589 ✗ switch (status_code) {
590 ✗ case AVERROR_HTTP_BAD_REQUEST:
591 case 400:
592 ✗ reply_code = 400;
593 ✗ reply_text = "Bad Request";
594 ✗ break;
595 ✗ case AVERROR_HTTP_FORBIDDEN:
596 case 403:
597 ✗ reply_code = 403;
598 ✗ reply_text = "Forbidden";
599 ✗ break;
600 ✗ case AVERROR_HTTP_NOT_FOUND:
601 case 404:
602 ✗ reply_code = 404;
603 ✗ reply_text = "Not Found";
604 ✗ break;
605 ✗ case AVERROR_HTTP_TOO_MANY_REQUESTS:
606 case 429:
607 ✗ reply_code = 429;
608 ✗ reply_text = "Too Many Requests";
609 ✗ break;
610 ✗ case 200:
611 ✗ reply_code = 200;
612 ✗ reply_text = "OK";
613 ✗ content_type = s->content_type ? s->content_type : "application/octet-stream";
614 ✗ break;
615 ✗ case AVERROR_HTTP_SERVER_ERROR:
616 case 500:
617 ✗ reply_code = 500;
618 ✗ reply_text = "Internal server error";
619 ✗ break;
620 ✗ default:
621 ✗ return AVERROR(EINVAL);
622 }
623 ✗ if (body) {
624 ✗ s->chunked_post = 0;
625 ✗ message_len = snprintf(message, sizeof(message),
626 "HTTP/1.1 %03d %s\r\n"
627 "Content-Type: %s\r\n"
628 "Content-Length: %zu\r\n"
629 "%s"
630 "\r\n"
631 "%03d %s\r\n",
632 reply_code,
633 reply_text,
634 content_type,
635 ✗ strlen(reply_text) + 6, // 3 digit status code + space + \r\n
636 ✗ s->headers ? s->headers : "",
637 reply_code,
638 reply_text);
639 } else {
640 ✗ s->chunked_post = 1;
641 ✗ message_len = snprintf(message, sizeof(message),
642 "HTTP/1.1 %03d %s\r\n"
643 "Content-Type: %s\r\n"
644 "Transfer-Encoding: chunked\r\n"
645 "%s"
646 "\r\n",
647 reply_code,
648 reply_text,
649 content_type,
650 ✗ s->headers ? s->headers : "");
651 }
652 ✗ av_log(h, AV_LOG_TRACE, "HTTP reply header: \n%s----\n", message);
653 ✗ if ((ret = ffurl_write(s->hd, message, message_len)) < 0)
654 ✗ return ret;
655 ✗ return 0;
656 }
657
658 ✗ static void handle_http_errors(URLContext *h, int error)
659 {
660 ✗ av_assert0(error < 0);
661 ✗ http_write_reply(h, error);
662 ✗ }
663
664 ✗ static int http_handshake(URLContext *c)
665 {
666 int ret, err;
667 ✗ HTTPContext *ch = c->priv_data;
668 ✗ URLContext *cl = ch->hd;
669 ✗ switch (ch->handshake_step) {
670 ✗ case LOWER_PROTO:
671 ✗ av_log(c, AV_LOG_TRACE, "Lower protocol\n");
672 ✗ if ((ret = ffurl_handshake(cl)) > 0)
673 ✗ return 2 + ret;
674 ✗ if (ret < 0)
675 ✗ return ret;
676 ✗ ch->handshake_step = READ_HEADERS;
677 ✗ ch->is_connected_server = 1;
678 ✗ return 2;
679 ✗ case READ_HEADERS:
680 ✗ av_log(c, AV_LOG_TRACE, "Read headers\n");
681 ✗ if ((err = http_read_header(c)) < 0) {
682 ✗ handle_http_errors(c, err);
683 ✗ return err;
684 }
685 ✗ ch->handshake_step = WRITE_REPLY_HEADERS;
686 ✗ return 1;
687 ✗ case WRITE_REPLY_HEADERS:
688 ✗ av_log(c, AV_LOG_TRACE, "Reply code: %d\n", ch->reply_code);
689 ✗ if ((err = http_write_reply(c, ch->reply_code)) < 0)
690 ✗ return err;
691 ✗ ch->handshake_step = FINISH;
692 ✗ return 1;
693 ✗ case FINISH:
694 ✗ return 0;
695 }
696 // this should never be reached.
697 ✗ return AVERROR(EINVAL);
698 }
699
700 ✗ static int http_listen(URLContext *h, const char *uri, int flags,
701 AVDictionary **options) {
702 ✗ HTTPContext *s = h->priv_data;
703 int ret;
704 char hostname[1024], proto[10];
705 char lower_url[100];
706 ✗ const char *lower_proto = "tcp";
707 int port;
708 ✗ av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port,
709 NULL, 0, uri);
710 ✗ if (!strcmp(proto, "https"))
711 ✗ lower_proto = "tls";
712 ✗ ff_url_join(lower_url, sizeof(lower_url), lower_proto, NULL, hostname, port,
713 NULL);
714 ✗ if ((ret = av_dict_set_int(options, "listen", s->listen, 0)) < 0)
715 ✗ goto fail;
716 ✗ if ((ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
717 ✗ &h->interrupt_callback, options,
718 h->protocol_whitelist, h->protocol_blacklist, h
719 )) < 0)
720 ✗ goto fail;
721 ✗ s->handshake_step = LOWER_PROTO;
722 ✗ if (s->listen == HTTP_SINGLE) { /* single client */
723 ✗ s->reply_code = 200;
724 ✗ while ((ret = http_handshake(h)) > 0);
725 }
726 ✗ fail:
727 ✗ av_dict_free(&s->chained_options);
728 ✗ av_dict_free(&s->cookie_dict);
729 ✗ return ret;
730 }
731
732 ✗ static int http_open(URLContext *h, const char *uri, int flags,
733 AVDictionary **options)
734 {
735 ✗ HTTPContext *s = h->priv_data;
736 int ret;
737
738 ✗ if( s->seekable == 1 )
739 ✗ h->is_streamed = 0;
740 else
741 ✗ h->is_streamed = 1;
742
743 ✗ s->filesize = UINT64_MAX;
744
745 ✗ s->location = av_strdup(uri);
746 ✗ if (!s->location)
747 ✗ return AVERROR(ENOMEM);
748
749 ✗ s->uri = av_strdup(uri);
750 ✗ if (!s->uri)
751 ✗ return AVERROR(ENOMEM);
752
753 ✗ if (options)
754 ✗ av_dict_copy(&s->chained_options, *options, 0);
755
756 ✗ if (s->headers) {
757 ✗ int len = strlen(s->headers);
758 ✗ if (len < 2 || strcmp("\r\n", s->headers + len - 2)) {
759 ✗ av_log(h, AV_LOG_WARNING,
760 "No trailing CRLF found in HTTP header. Adding it.\n");
761 ✗ ret = av_reallocp(&s->headers, len + 3);
762 ✗ if (ret < 0)
763 ✗ goto bail_out;
764 ✗ s->headers[len] = '\r';
765 ✗ s->headers[len + 1] = '\n';
766 ✗ s->headers[len + 2] = '\0';
767 }
768 }
769
770 ✗ if (s->listen) {
771 ✗ return http_listen(h, uri, flags, options);
772 }
773 ✗ ret = http_open_cnx(h, options);
774 ✗ bail_out:
775 ✗ if (ret < 0) {
776 ✗ av_dict_free(&s->chained_options);
777 ✗ av_dict_free(&s->cookie_dict);
778 ✗ av_dict_free(&s->redirect_cache);
779 ✗ av_freep(&s->new_location);
780 ✗ av_freep(&s->uri);
781 }
782 ✗ return ret;
783 }
784
785 ✗ static int http_accept(URLContext *s, URLContext **c)
786 {
787 int ret;
788 ✗ HTTPContext *sc = s->priv_data;
789 HTTPContext *cc;
790 ✗ URLContext *sl = sc->hd;
791 ✗ URLContext *cl = NULL;
792
793 ✗ av_assert0(sc->listen);
794 ✗ if ((ret = ffurl_alloc(c, s->filename, s->flags, &sl->interrupt_callback)) < 0)
795 ✗ goto fail;
796 ✗ cc = (*c)->priv_data;
797 ✗ if ((ret = ffurl_accept(sl, &cl)) < 0)
798 ✗ goto fail;
799 ✗ cc->hd = cl;
800 ✗ cc->is_multi_client = 1;
801 ✗ return 0;
802 ✗ fail:
803 ✗ if (c) {
804 ✗ ffurl_closep(c);
805 }
806 ✗ return ret;
807 }
808
809 ✗ static int http_getc(HTTPContext *s)
810 {
811 int len;
812 ✗ if (s->buf_ptr >= s->buf_end) {
813 ✗ len = ffurl_read(s->hd, s->buffer, BUFFER_SIZE);
814 ✗ if (len < 0) {
815 ✗ return len;
816 ✗ } else if (len == 0) {
817 ✗ return AVERROR_EOF;
818 } else {
819 ✗ s->buf_ptr = s->buffer;
820 ✗ s->buf_end = s->buffer + len;
821 }
822 }
823 ✗ return *s->buf_ptr++;
824 }
825
826 ✗ static int http_get_line(HTTPContext *s, char *line, int line_size)
827 {
828 int ch;
829 char *q;
830
831 ✗ q = line;
832 for (;;) {
833 ✗ ch = http_getc(s);
834 ✗ if (ch < 0)
835 ✗ return ch;
836 ✗ if (ch == '\n') {
837 /* process line */
838 ✗ if (q > line && q[-1] == '\r')
839 ✗ q--;
840 ✗ *q = '\0';
841
842 ✗ return 0;
843 } else {
844 ✗ if ((q - line) < line_size - 1)
845 ✗ *q++ = ch;
846 }
847 }
848 }
849
850 ✗ static int check_http_code(URLContext *h, int http_code, const char *end)
851 {
852 ✗ HTTPContext *s = h->priv_data;
853 /* error codes are 4xx and 5xx, but regard 401 as a success, so we
854 * don't abort until all headers have been parsed. */
855 ✗ if (http_code >= 400 && http_code < 600 &&
856 ✗ (http_code != 401 || s->auth_state.auth_type != HTTP_AUTH_NONE) &&
857 ✗ (http_code != 407 || s->proxy_auth_state.auth_type != HTTP_AUTH_NONE)) {
858 ✗ end += strspn(end, SPACE_CHARS);
859 ✗ av_log(h, AV_LOG_WARNING, "HTTP error %d %s\n", http_code, end);
860 ✗ return ff_http_averror(http_code, AVERROR(EIO));
861 }
862 ✗ return 0;
863 }
864
865 ✗ static int parse_location(HTTPContext *s, const char *p)
866 {
867 char redirected_location[MAX_URL_SIZE];
868 ✗ ff_make_absolute_url(redirected_location, sizeof(redirected_location),
869 ✗ s->location, p);
870 ✗ av_freep(&s->new_location);
871 ✗ s->new_location = av_strdup(redirected_location);
872 ✗ if (!s->new_location)
873 ✗ return AVERROR(ENOMEM);
874 ✗ return 0;
875 }
876
877 /* "bytes $from-$to/$document_size" */
878 ✗ static void parse_content_range(URLContext *h, const char *p)
879 {
880 ✗ HTTPContext *s = h->priv_data;
881 const char *slash;
882
883 ✗ if (!strncmp(p, "bytes ", 6)) {
884 ✗ p += 6;
885 ✗ s->off = strtoull(p, NULL, 10);
886 ✗ if ((slash = strchr(p, '/')) && strlen(slash) > 0)
887 ✗ s->filesize_from_content_range = strtoull(slash + 1, NULL, 10);
888 }
889 ✗ if (s->seekable == -1 && (!s->is_akamai || s->filesize != 2147483647))
890 ✗ h->is_streamed = 0; /* we _can_ in fact seek */
891 ✗ }
892
893 ✗ static int parse_content_encoding(URLContext *h, const char *p)
894 {
895 ✗ if (!av_strncasecmp(p, "gzip", 4) ||
896 ✗ !av_strncasecmp(p, "deflate", 7)) {
897 #if CONFIG_ZLIB
898 ✗ HTTPContext *s = h->priv_data;
899
900 ✗ s->compressed = 1;
901 ✗ inflateEnd(&s->inflate_stream);
902 ✗ if (inflateInit2(&s->inflate_stream, 32 + 15) != Z_OK) {
903 ✗ av_log(h, AV_LOG_WARNING, "Error during zlib initialisation: %s\n",
904 s->inflate_stream.msg);
905 ✗ return AVERROR(ENOSYS);
906 }
907 ✗ if (zlibCompileFlags() & (1 << 17)) {
908 ✗ av_log(h, AV_LOG_WARNING,
909 "Your zlib was compiled without gzip support.\n");
910 ✗ return AVERROR(ENOSYS);
911 }
912 #else
913 av_log(h, AV_LOG_WARNING,
914 "Compressed (%s) content, need zlib with gzip support\n", p);
915 return AVERROR(ENOSYS);
916 #endif /* CONFIG_ZLIB */
917 ✗ } else if (!av_strncasecmp(p, "identity", 8)) {
918 // The normal, no-encoding case (although servers shouldn't include
919 // the header at all if this is the case).
920 } else {
921 ✗ av_log(h, AV_LOG_WARNING, "Unknown content coding: %s\n", p);
922 }
923 ✗ return 0;
924 }
925
926 // Concat all Icy- header lines
927 ✗ static int parse_icy(HTTPContext *s, const char *tag, const char *p)
928 {
929 ✗ int len = 4 + strlen(p) + strlen(tag);
930 ✗ int is_first = !s->icy_metadata_headers;
931 int ret;
932
933 ✗ av_dict_set(&s->metadata, tag, p, 0);
934
935 ✗ if (s->icy_metadata_headers)
936 ✗ len += strlen(s->icy_metadata_headers);
937
938 ✗ if ((ret = av_reallocp(&s->icy_metadata_headers, len)) < 0)
939 ✗ return ret;
940
941 ✗ if (is_first)
942 ✗ *s->icy_metadata_headers = '\0';
943
944 ✗ av_strlcatf(s->icy_metadata_headers, len, "%s: %s\n", tag, p);
945
946 ✗ return 0;
947 }
948
949 ✗ static int parse_http_date(const char *date_str, struct tm *buf)
950 {
951 char date_buf[MAX_DATE_LEN];
952 ✗ int i, j, date_buf_len = MAX_DATE_LEN-1;
953 char *date;
954
955 // strip off any punctuation or whitespace
956 ✗ for (i = 0, j = 0; date_str[i] != '\0' && j < date_buf_len; i++) {
957 ✗ if ((date_str[i] >= '0' && date_str[i] <= '9') ||
958 ✗ (date_str[i] >= 'A' && date_str[i] <= 'Z') ||
959 ✗ (date_str[i] >= 'a' && date_str[i] <= 'z')) {
960 ✗ date_buf[j] = date_str[i];
961 ✗ j++;
962 }
963 }
964 ✗ date_buf[j] = '\0';
965 ✗ date = date_buf;
966
967 // move the string beyond the day of week
968 ✗ while ((*date < '0' || *date > '9') && *date != '\0')
969 ✗ date++;
970
971 ✗ return av_small_strptime(date, "%d%b%Y%H%M%S", buf) ? 0 : AVERROR(EINVAL);
972 }
973
974 ✗ static int parse_set_cookie(const char *set_cookie, AVDictionary **dict)
975 {
976 char *param, *next_param, *cstr, *back;
977 ✗ char *saveptr = NULL;
978
979 ✗ if (!set_cookie[0])
980 ✗ return 0;
981
982 ✗ if (!(cstr = av_strdup(set_cookie)))
983 ✗ return AVERROR(EINVAL);
984
985 // strip any trailing whitespace
986 ✗ back = &cstr[strlen(cstr)-1];
987 ✗ while (strchr(WHITESPACES, *back)) {
988 ✗ *back='\0';
989 ✗ if (back == cstr)
990 ✗ break;
991 ✗ back--;
992 }
993
994 ✗ next_param = cstr;
995 ✗ while ((param = av_strtok(next_param, ";", &saveptr))) {
996 char *name, *value;
997 ✗ next_param = NULL;
998 ✗ param += strspn(param, WHITESPACES);
999 ✗ if ((name = av_strtok(param, "=", &value))) {
1000 ✗ if (av_dict_set(dict, name, value, 0) < 0) {
1001 ✗ av_free(cstr);
1002 ✗ return -1;
1003 }
1004 }
1005 }
1006
1007 ✗ av_free(cstr);
1008 ✗ return 0;
1009 }
1010
1011 ✗ static int parse_cookie(HTTPContext *s, const char *p, AVDictionary **cookies)
1012 {
1013 ✗ AVDictionary *new_params = NULL;
1014 const AVDictionaryEntry *e, *cookie_entry;
1015 char *eql, *name;
1016
1017 // ensure the cookie is parsable
1018 ✗ if (parse_set_cookie(p, &new_params))
1019 ✗ return -1;
1020
1021 // if there is no cookie value there is nothing to parse
1022 ✗ cookie_entry = av_dict_iterate(new_params, NULL);
1023 ✗ if (!cookie_entry || !cookie_entry->value) {
1024 ✗ av_dict_free(&new_params);
1025 ✗ return -1;
1026 }
1027
1028 // ensure the cookie is not expired or older than an existing value
1029 ✗ if ((e = av_dict_get(new_params, "expires", NULL, 0)) && e->value) {
1030 ✗ struct tm new_tm = {0};
1031 ✗ if (!parse_http_date(e->value, &new_tm)) {
1032 AVDictionaryEntry *e2;
1033
1034 // if the cookie has already expired ignore it
1035 ✗ if (av_timegm(&new_tm) < av_gettime() / 1000000) {
1036 ✗ av_dict_free(&new_params);
1037 ✗ return 0;
1038 }
1039
1040 // only replace an older cookie with the same name
1041 ✗ e2 = av_dict_get(*cookies, cookie_entry->key, NULL, 0);
1042 ✗ if (e2 && e2->value) {
1043 ✗ AVDictionary *old_params = NULL;
1044 ✗ if (!parse_set_cookie(p, &old_params)) {
1045 ✗ e2 = av_dict_get(old_params, "expires", NULL, 0);
1046 ✗ if (e2 && e2->value) {
1047 ✗ struct tm old_tm = {0};
1048 ✗ if (!parse_http_date(e->value, &old_tm)) {
1049 ✗ if (av_timegm(&new_tm) < av_timegm(&old_tm)) {
1050 ✗ av_dict_free(&new_params);
1051 ✗ av_dict_free(&old_params);
1052 ✗ return -1;
1053 }
1054 }
1055 }
1056 }
1057 ✗ av_dict_free(&old_params);
1058 }
1059 }
1060 }
1061 ✗ av_dict_free(&new_params);
1062
1063 // duplicate the cookie name (dict will dupe the value)
1064 ✗ if (!(eql = strchr(p, '='))) return AVERROR(EINVAL);
1065 ✗ if (!(name = av_strndup(p, eql - p))) return AVERROR(ENOMEM);
1066
1067 // add the cookie to the dictionary
1068 ✗ av_dict_set(cookies, name, eql, AV_DICT_DONT_STRDUP_KEY);
1069
1070 ✗ return 0;
1071 }
1072
1073 ✗ static int cookie_string(AVDictionary *dict, char **cookies)
1074 {
1075 ✗ const AVDictionaryEntry *e = NULL;
1076 ✗ int len = 1;
1077
1078 // determine how much memory is needed for the cookies string
1079 ✗ while ((e = av_dict_iterate(dict, e)))
1080 ✗ len += strlen(e->key) + strlen(e->value) + 1;
1081
1082 // reallocate the cookies
1083 ✗ e = NULL;
1084 ✗ if (*cookies) av_free(*cookies);
1085 ✗ *cookies = av_malloc(len);
1086 ✗ if (!*cookies) return AVERROR(ENOMEM);
1087 ✗ *cookies[0] = '\0';
1088
1089 // write out the cookies
1090 ✗ while ((e = av_dict_iterate(dict, e)))
1091 ✗ av_strlcatf(*cookies, len, "%s%s\n", e->key, e->value);
1092
1093 ✗ return 0;
1094 }
1095
1096 ✗ static void parse_expires(HTTPContext *s, const char *p)
1097 {
1098 struct tm tm;
1099
1100 ✗ if (!parse_http_date(p, &tm)) {
1101 ✗ s->expires = av_timegm(&tm);
1102 }
1103 ✗ }
1104
1105 ✗ static void parse_cache_control(HTTPContext *s, const char *p)
1106 {
1107 char *age;
1108 int offset;
1109
1110 /* give 'Expires' higher priority over 'Cache-Control' */
1111 ✗ if (s->expires) {
1112 ✗ return;
1113 }
1114
1115 ✗ if (av_stristr(p, "no-cache") || av_stristr(p, "no-store")) {
1116 ✗ s->expires = -1;
1117 ✗ return;
1118 }
1119
1120 ✗ age = av_stristr(p, "s-maxage=");
1121 ✗ offset = 9;
1122 ✗ if (!age) {
1123 ✗ age = av_stristr(p, "max-age=");
1124 ✗ offset = 8;
1125 }
1126
1127 ✗ if (age) {
1128 ✗ s->expires = time(NULL) + atoi(p + offset);
1129 }
1130 }
1131
1132 ✗ static int process_line(URLContext *h, char *line, int line_count, int *parsed_http_code)
1133 {
1134 ✗ HTTPContext *s = h->priv_data;
1135 ✗ const char *auto_method = h->flags & AVIO_FLAG_READ ? "POST" : "GET";
1136 char *tag, *p, *end, *method, *resource, *version;
1137 int ret;
1138
1139 /* end of header */
1140 ✗ if (line[0] == '\0') {
1141 ✗ s->end_header = 1;
1142 ✗ return 0;
1143 }
1144
1145 ✗ p = line;
1146 ✗ if (line_count == 0) {
1147 ✗ if (s->is_connected_server) {
1148 // HTTP method
1149 ✗ method = p;
1150 ✗ while (*p && !av_isspace(*p))
1151 ✗ p++;
1152 ✗ *(p++) = '\0';
1153 ✗ av_log(h, AV_LOG_TRACE, "Received method: %s\n", method);
1154 ✗ if (s->method) {
1155 ✗ if (av_strcasecmp(s->method, method)) {
1156 ✗ av_log(h, AV_LOG_ERROR, "Received and expected HTTP method do not match. (%s expected, %s received)\n",
1157 s->method, method);
1158 ✗ return ff_http_averror(400, AVERROR(EIO));
1159 }
1160 } else {
1161 // use autodetected HTTP method to expect
1162 ✗ av_log(h, AV_LOG_TRACE, "Autodetected %s HTTP method\n", auto_method);
1163 ✗ if (av_strcasecmp(auto_method, method)) {
1164 ✗ av_log(h, AV_LOG_ERROR, "Received and autodetected HTTP method did not match "
1165 "(%s autodetected %s received)\n", auto_method, method);
1166 ✗ return ff_http_averror(400, AVERROR(EIO));
1167 }
1168 ✗ if (!(s->method = av_strdup(method)))
1169 ✗ return AVERROR(ENOMEM);
1170 }
1171
1172 // HTTP resource
1173 ✗ while (av_isspace(*p))
1174 ✗ p++;
1175 ✗ resource = p;
1176 ✗ while (*p && !av_isspace(*p))
1177 ✗ p++;
1178 ✗ *(p++) = '\0';
1179 ✗ av_log(h, AV_LOG_TRACE, "Requested resource: %s\n", resource);
1180 ✗ if (!(s->resource = av_strdup(resource)))
1181 ✗ return AVERROR(ENOMEM);
1182
1183 // HTTP version
1184 ✗ while (av_isspace(*p))
1185 ✗ p++;
1186 ✗ version = p;
1187 ✗ while (*p && !av_isspace(*p))
1188 ✗ p++;
1189 ✗ *p = '\0';
1190 ✗ if (av_strncasecmp(version, "HTTP/", 5)) {
1191 ✗ av_log(h, AV_LOG_ERROR, "Malformed HTTP version string.\n");
1192 ✗ return ff_http_averror(400, AVERROR(EIO));
1193 }
1194 ✗ av_log(h, AV_LOG_TRACE, "HTTP version string: %s\n", version);
1195 } else {
1196 ✗ if (av_strncasecmp(p, "HTTP/1.0", 8) == 0)
1197 ✗ s->willclose = 1;
1198 ✗ while (*p != '/' && *p != '\0')
1199 ✗ p++;
1200 ✗ while (*p == '/')
1201 ✗ p++;
1202 ✗ av_freep(&s->http_version);
1203 ✗ s->http_version = av_strndup(p, 3);
1204 ✗ while (!av_isspace(*p) && *p != '\0')
1205 ✗ p++;
1206 ✗ while (av_isspace(*p))
1207 ✗ p++;
1208 ✗ s->http_code = strtol(p, &end, 10);
1209
1210 ✗ av_log(h, AV_LOG_TRACE, "http_code=%d\n", s->http_code);
1211
1212 ✗ *parsed_http_code = 1;
1213
1214 ✗ if ((ret = check_http_code(h, s->http_code, end)) < 0)
1215 ✗ return ret;
1216 }
1217 } else {
1218 ✗ while (*p != '\0' && *p != ':')
1219 ✗ p++;
1220 ✗ if (*p != ':')
1221 ✗ return 1;
1222
1223 ✗ *p = '\0';
1224 ✗ tag = line;
1225 ✗ p++;
1226 ✗ while (av_isspace(*p))
1227 ✗ p++;
1228 ✗ if (!av_strcasecmp(tag, "Location")) {
1229 ✗ if ((ret = parse_location(s, p)) < 0)
1230 ✗ return ret;
1231 ✗ } else if (!av_strcasecmp(tag, "Content-Length") &&
1232 ✗ s->filesize == UINT64_MAX) {
1233 ✗ s->filesize = strtoull(p, NULL, 10);
1234 ✗ } else if (!av_strcasecmp(tag, "Content-Range")) {
1235 ✗ parse_content_range(h, p);
1236 ✗ } else if (!av_strcasecmp(tag, "Accept-Ranges") &&
1237 ✗ !strncmp(p, "bytes", 5) &&
1238 ✗ s->seekable == -1) {
1239 ✗ h->is_streamed = 0;
1240 ✗ } else if (!av_strcasecmp(tag, "Transfer-Encoding") &&
1241 ✗ !av_strncasecmp(p, "chunked", 7)) {
1242 ✗ s->filesize = UINT64_MAX;
1243 ✗ s->chunksize = 0;
1244 ✗ } else if (!av_strcasecmp(tag, "WWW-Authenticate")) {
1245 ✗ ff_http_auth_handle_header(&s->auth_state, tag, p);
1246 ✗ } else if (!av_strcasecmp(tag, "Authentication-Info")) {
1247 ✗ ff_http_auth_handle_header(&s->auth_state, tag, p);
1248 ✗ } else if (!av_strcasecmp(tag, "Proxy-Authenticate")) {
1249 ✗ ff_http_auth_handle_header(&s->proxy_auth_state, tag, p);
1250 ✗ } else if (!av_strcasecmp(tag, "Connection")) {
1251 ✗ if (!strcmp(p, "close"))
1252 ✗ s->willclose = 1;
1253 ✗ } else if (!av_strcasecmp(tag, "Server")) {
1254 ✗ if (!av_strcasecmp(p, "AkamaiGHost")) {
1255 ✗ s->is_akamai = 1;
1256 ✗ } else if (!av_strncasecmp(p, "MediaGateway", 12)) {
1257 ✗ s->is_mediagateway = 1;
1258 }
1259 ✗ } else if (!av_strcasecmp(tag, "Content-Type")) {
1260 ✗ av_free(s->mime_type);
1261 ✗ s->mime_type = av_get_token((const char **)&p, ";");
1262 ✗ } else if (!av_strcasecmp(tag, "Set-Cookie")) {
1263 ✗ if (parse_cookie(s, p, &s->cookie_dict))
1264 ✗ av_log(h, AV_LOG_WARNING, "Unable to parse '%s'\n", p);
1265 ✗ } else if (!av_strcasecmp(tag, "Icy-MetaInt")) {
1266 ✗ s->icy_metaint = strtoull(p, NULL, 10);
1267 ✗ } else if (!av_strncasecmp(tag, "Icy-", 4)) {
1268 ✗ if ((ret = parse_icy(s, tag, p)) < 0)
1269 ✗ return ret;
1270 ✗ } else if (!av_strcasecmp(tag, "Content-Encoding")) {
1271 ✗ if ((ret = parse_content_encoding(h, p)) < 0)
1272 ✗ return ret;
1273 ✗ } else if (!av_strcasecmp(tag, "Expires")) {
1274 ✗ parse_expires(s, p);
1275 ✗ } else if (!av_strcasecmp(tag, "Cache-Control")) {
1276 ✗ parse_cache_control(s, p);
1277 ✗ } else if (!av_strcasecmp(tag, "Retry-After")) {
1278 /* The header can be either an integer that represents seconds, or a date. */
1279 struct tm tm;
1280 ✗ int date_ret = parse_http_date(p, &tm);
1281 ✗ if (!date_ret) {
1282 ✗ time_t retry = av_timegm(&tm);
1283 ✗ int64_t now = av_gettime() / 1000000;
1284 ✗ int64_t diff = ((int64_t) retry) - now;
1285 ✗ s->retry_after = (unsigned int) FFMAX(0, diff);
1286 } else {
1287 ✗ s->retry_after = strtoul(p, NULL, 10);
1288 }
1289 }
1290 }
1291 ✗ return 1;
1292 }
1293
1294 /**
1295 * Create a string containing cookie values for use as a HTTP cookie header
1296 * field value for a particular path and domain from the cookie values stored in
1297 * the HTTP protocol context. The cookie string is stored in *cookies, and may
1298 * be NULL if there are no valid cookies.
1299 *
1300 * @return a negative value if an error condition occurred, 0 otherwise
1301 */
1302 ✗ static int get_cookies(HTTPContext *s, char **cookies, const char *path,
1303 const char *domain)
1304 {
1305 // cookie strings will look like Set-Cookie header field values. Multiple
1306 // Set-Cookie fields will result in multiple values delimited by a newline
1307 ✗ int ret = 0;
1308 char *cookie, *set_cookies, *next;
1309 ✗ char *saveptr = NULL;
1310
1311 // destroy any cookies in the dictionary.
1312 ✗ av_dict_free(&s->cookie_dict);
1313
1314 ✗ if (!s->cookies)
1315 ✗ return 0;
1316
1317 ✗ next = set_cookies = av_strdup(s->cookies);
1318 ✗ if (!next)
1319 ✗ return AVERROR(ENOMEM);
1320
1321 ✗ *cookies = NULL;
1322 ✗ while ((cookie = av_strtok(next, "\n", &saveptr)) && !ret) {
1323 ✗ AVDictionary *cookie_params = NULL;
1324 const AVDictionaryEntry *cookie_entry, *e;
1325
1326 ✗ next = NULL;
1327 // store the cookie in a dict in case it is updated in the response
1328 ✗ if (parse_cookie(s, cookie, &s->cookie_dict))
1329 ✗ av_log(s, AV_LOG_WARNING, "Unable to parse '%s'\n", cookie);
1330
1331 // continue on to the next cookie if this one cannot be parsed
1332 ✗ if (parse_set_cookie(cookie, &cookie_params))
1333 ✗ goto skip_cookie;
1334
1335 // if the cookie has no value, skip it
1336 ✗ cookie_entry = av_dict_iterate(cookie_params, NULL);
1337 ✗ if (!cookie_entry || !cookie_entry->value)
1338 ✗ goto skip_cookie;
1339
1340 // if the cookie has expired, don't add it
1341 ✗ if ((e = av_dict_get(cookie_params, "expires", NULL, 0)) && e->value) {
1342 ✗ struct tm tm_buf = {0};
1343 ✗ if (!parse_http_date(e->value, &tm_buf)) {
1344 ✗ if (av_timegm(&tm_buf) < av_gettime() / 1000000)
1345 ✗ goto skip_cookie;
1346 }
1347 }
1348
1349 // if no domain in the cookie assume it applied to this request
1350 ✗ if ((e = av_dict_get(cookie_params, "domain", NULL, 0)) && e->value) {
1351 // find the offset comparison is on the min domain (b.com, not a.b.com)
1352 ✗ int domain_offset = strlen(domain) - strlen(e->value);
1353 ✗ if (domain_offset < 0)
1354 ✗ goto skip_cookie;
1355
1356 // match the cookie domain
1357 ✗ if (av_strcasecmp(&domain[domain_offset], e->value))
1358 ✗ goto skip_cookie;
1359 }
1360
1361 // if a cookie path is provided, ensure the request path is within that path
1362 ✗ e = av_dict_get(cookie_params, "path", NULL, 0);
1363 ✗ if (e && av_strncasecmp(path, e->value, strlen(e->value)))
1364 ✗ goto skip_cookie;
1365
1366 // cookie parameters match, so copy the value
1367 ✗ if (!*cookies) {
1368 ✗ *cookies = av_asprintf("%s=%s", cookie_entry->key, cookie_entry->value);
1369 } else {
1370 ✗ char *tmp = *cookies;
1371 ✗ *cookies = av_asprintf("%s; %s=%s", tmp, cookie_entry->key, cookie_entry->value);
1372 ✗ av_free(tmp);
1373 }
1374 ✗ if (!*cookies)
1375 ✗ ret = AVERROR(ENOMEM);
1376
1377 ✗ skip_cookie:
1378 ✗ av_dict_free(&cookie_params);
1379 }
1380
1381 ✗ av_free(set_cookies);
1382
1383 ✗ return ret;
1384 }
1385
1386 ✗ static inline int has_header(const char *str, const char *header)
1387 {
1388 /* header + 2 to skip over CRLF prefix. (make sure you have one!) */
1389 ✗ if (!str)
1390 ✗ return 0;
1391 ✗ return av_stristart(str, header + 2, NULL) || av_stristr(str, header);
1392 }
1393
1394 ✗ static int http_read_header(URLContext *h)
1395 {
1396 ✗ HTTPContext *s = h->priv_data;
1397 char line[MAX_URL_SIZE];
1398 ✗ int err = 0, http_err = 0;
1399
1400 ✗ av_freep(&s->new_location);
1401 ✗ s->expires = 0;
1402 ✗ s->chunksize = UINT64_MAX;
1403 ✗ s->filesize_from_content_range = UINT64_MAX;
1404
1405 ✗ for (;;) {
1406 ✗ int parsed_http_code = 0;
1407
1408 ✗ if ((err = http_get_line(s, line, sizeof(line))) < 0)
1409 ✗ return err;
1410
1411 ✗ av_log(h, AV_LOG_TRACE, "header='%s'\n", line);
1412
1413 ✗ err = process_line(h, line, s->line_count, &parsed_http_code);
1414 ✗ if (err < 0) {
1415 ✗ if (parsed_http_code) {
1416 ✗ http_err = err;
1417 } else {
1418 /* Prefer to return HTTP code error if we've already seen one. */
1419 ✗ if (http_err)
1420 ✗ return http_err;
1421 else
1422 ✗ return err;
1423 }
1424 }
1425 ✗ if (err == 0)
1426 ✗ break;
1427 ✗ s->line_count++;
1428 }
1429 ✗ if (http_err)
1430 ✗ return http_err;
1431
1432 // filesize from Content-Range can always be used, even if using chunked Transfer-Encoding
1433 ✗ if (s->filesize_from_content_range != UINT64_MAX)
1434 ✗ s->filesize = s->filesize_from_content_range;
1435
1436 ✗ if (s->seekable == -1 && s->is_mediagateway && s->filesize == 2000000000)
1437 ✗ h->is_streamed = 1; /* we can in fact _not_ seek */
1438
1439 // add any new cookies into the existing cookie string
1440 ✗ cookie_string(s->cookie_dict, &s->cookies);
1441 ✗ av_dict_free(&s->cookie_dict);
1442
1443 ✗ return err;
1444 }
1445
1446 /**
1447 * Escape unsafe characters in path in order to pass them safely to the HTTP
1448 * request. Insipred by the algorithm in GNU wget:
1449 * - escape "%" characters not followed by two hex digits
1450 * - escape all "unsafe" characters except which are also "reserved"
1451 * - pass through everything else
1452 */
1453 ✗ static void bprint_escaped_path(AVBPrint *bp, const char *path)
1454 {
1455 #define NEEDS_ESCAPE(ch) \
1456 ((ch) <= ' ' || (ch) >= '\x7f' || \
1457 (ch) == '"' || (ch) == '%' || (ch) == '<' || (ch) == '>' || (ch) == '\\' || \
1458 (ch) == '^' || (ch) == '`' || (ch) == '{' || (ch) == '}' || (ch) == '|')
1459 ✗ while (*path) {
1460 char buf[1024];
1461 ✗ char *q = buf;
1462 ✗ while (*path && q - buf < sizeof(buf) - 4) {
1463 ✗ if (path[0] == '%' && av_isxdigit(path[1]) && av_isxdigit(path[2])) {
1464 ✗ *q++ = *path++;
1465 ✗ *q++ = *path++;
1466 ✗ *q++ = *path++;
1467 ✗ } else if (NEEDS_ESCAPE(*path)) {
1468 ✗ q += snprintf(q, 4, "%%%02X", (uint8_t)*path++);
1469 } else {
1470 ✗ *q++ = *path++;
1471 }
1472 }
1473 ✗ av_bprint_append_data(bp, buf, q - buf);
1474 }
1475 ✗ }
1476
1477 ✗ static int http_connect(URLContext *h, const char *path, const char *local_path,
1478 const char *hoststr, const char *auth,
1479 const char *proxyauth)
1480 {
1481 ✗ HTTPContext *s = h->priv_data;
1482 int post, err;
1483 AVBPrint request;
1484 ✗ char *authstr = NULL, *proxyauthstr = NULL;
1485 ✗ uint64_t off = s->off;
1486 const char *method;
1487 ✗ int send_expect_100 = 0;
1488
1489 ✗ av_bprint_init_for_buffer(&request, s->buffer, sizeof(s->buffer));
1490
1491 /* send http header */
1492 ✗ post = h->flags & AVIO_FLAG_WRITE;
1493
1494 ✗ if (s->post_data) {
1495 /* force POST method and disable chunked encoding when
1496 * custom HTTP post data is set */
1497 ✗ post = 1;
1498 ✗ s->chunked_post = 0;
1499 }
1500
1501 ✗ if (s->method)
1502 ✗ method = s->method;
1503 else
1504 ✗ method = post ? "POST" : "GET";
1505
1506 ✗ authstr = ff_http_auth_create_response(&s->auth_state, auth,
1507 local_path, method);
1508 ✗ proxyauthstr = ff_http_auth_create_response(&s->proxy_auth_state, proxyauth,
1509 local_path, method);
1510
1511 ✗ if (post && !s->post_data) {
1512 ✗ if (s->send_expect_100 != -1) {
1513 ✗ send_expect_100 = s->send_expect_100;
1514 } else {
1515 ✗ send_expect_100 = 0;
1516 /* The user has supplied authentication but we don't know the auth type,
1517 * send Expect: 100-continue to get the 401 response including the
1518 * WWW-Authenticate header, or an 100 continue if no auth actually
1519 * is needed. */
1520 ✗ if (auth && *auth &&
1521 ✗ s->auth_state.auth_type == HTTP_AUTH_NONE &&
1522 ✗ s->http_code != 401)
1523 ✗ send_expect_100 = 1;
1524 }
1525 }
1526
1527 ✗ av_bprintf(&request, "%s ", method);
1528 ✗ bprint_escaped_path(&request, path);
1529 ✗ av_bprintf(&request, " HTTP/1.1\r\n");
1530
1531 ✗ if (post && s->chunked_post)
1532 ✗ av_bprintf(&request, "Transfer-Encoding: chunked\r\n");
1533 /* set default headers if needed */
1534 ✗ if (!has_header(s->headers, "\r\nUser-Agent: "))
1535 ✗ av_bprintf(&request, "User-Agent: %s\r\n", s->user_agent);
1536 ✗ if (s->referer) {
1537 /* set default headers if needed */
1538 ✗ if (!has_header(s->headers, "\r\nReferer: "))
1539 ✗ av_bprintf(&request, "Referer: %s\r\n", s->referer);
1540 }
1541 ✗ if (!has_header(s->headers, "\r\nAccept: "))
1542 ✗ av_bprintf(&request, "Accept: */*\r\n");
1543 // Note: we send the Range header on purpose, even when we're probing,
1544 // since it allows us to detect more reliably if a (non-conforming)
1545 // server supports seeking by analysing the reply headers.
1546 ✗ if (!has_header(s->headers, "\r\nRange: ") && !post && (s->off > 0 || s->end_off || s->seekable != 0)) {
1547 ✗ av_bprintf(&request, "Range: bytes=%"PRIu64"-", s->off);
1548 ✗ if (s->end_off)
1549 ✗ av_bprintf(&request, "%"PRId64, s->end_off - 1);
1550 ✗ av_bprintf(&request, "\r\n");
1551 }
1552 ✗ if (send_expect_100 && !has_header(s->headers, "\r\nExpect: "))
1553 ✗ av_bprintf(&request, "Expect: 100-continue\r\n");
1554
1555 ✗ if (!has_header(s->headers, "\r\nConnection: "))
1556 ✗ av_bprintf(&request, "Connection: %s\r\n", s->multiple_requests ? "keep-alive" : "close");
1557
1558 ✗ if (!has_header(s->headers, "\r\nHost: "))
1559 ✗ av_bprintf(&request, "Host: %s\r\n", hoststr);
1560 ✗ if (!has_header(s->headers, "\r\nContent-Length: ") && s->post_data)
1561 ✗ av_bprintf(&request, "Content-Length: %d\r\n", s->post_datalen);
1562
1563 ✗ if (!has_header(s->headers, "\r\nContent-Type: ") && s->content_type)
1564 ✗ av_bprintf(&request, "Content-Type: %s\r\n", s->content_type);
1565 ✗ if (!has_header(s->headers, "\r\nCookie: ") && s->cookies) {
1566 ✗ char *cookies = NULL;
1567 ✗ if (!get_cookies(s, &cookies, path, hoststr) && cookies) {
1568 ✗ av_bprintf(&request, "Cookie: %s\r\n", cookies);
1569 ✗ av_free(cookies);
1570 }
1571 }
1572 ✗ if (!has_header(s->headers, "\r\nIcy-MetaData: ") && s->icy)
1573 ✗ av_bprintf(&request, "Icy-MetaData: 1\r\n");
1574
1575 /* now add in custom headers */
1576 ✗ if (s->headers)
1577 ✗ av_bprintf(&request, "%s", s->headers);
1578
1579 ✗ if (authstr)
1580 ✗ av_bprintf(&request, "%s", authstr);
1581 ✗ if (proxyauthstr)
1582 ✗ av_bprintf(&request, "Proxy-%s", proxyauthstr);
1583 ✗ av_bprintf(&request, "\r\n");
1584
1585 ✗ av_log(h, AV_LOG_DEBUG, "request: %s\n", request.str);
1586
1587 ✗ if (!av_bprint_is_complete(&request)) {
1588 ✗ av_log(h, AV_LOG_ERROR, "overlong headers\n");
1589 ✗ err = AVERROR(EINVAL);
1590 ✗ goto done;
1591 }
1592
1593 ✗ if ((err = ffurl_write(s->hd, request.str, request.len)) < 0)
1594 ✗ goto done;
1595
1596 ✗ if (s->post_data)
1597 ✗ if ((err = ffurl_write(s->hd, s->post_data, s->post_datalen)) < 0)
1598 ✗ goto done;
1599
1600 /* init input buffer */
1601 ✗ s->buf_ptr = s->buffer;
1602 ✗ s->buf_end = s->buffer;
1603 ✗ s->line_count = 0;
1604 ✗ s->off = 0;
1605 ✗ s->icy_data_read = 0;
1606 ✗ s->filesize = UINT64_MAX;
1607 ✗ s->willclose = 0;
1608 ✗ s->end_chunked_post = 0;
1609 ✗ s->end_header = 0;
1610 #if CONFIG_ZLIB
1611 ✗ s->compressed = 0;
1612 #endif
1613 ✗ if (post && !s->post_data && !send_expect_100) {
1614 /* Pretend that it did work. We didn't read any header yet, since
1615 * we've still to send the POST data, but the code calling this
1616 * function will check http_code after we return. */
1617 ✗ s->http_code = 200;
1618 ✗ err = 0;
1619 ✗ goto done;
1620 }
1621
1622 /* wait for header */
1623 ✗ err = http_read_header(h);
1624 ✗ if (err < 0)
1625 ✗ goto done;
1626
1627 ✗ if (s->new_location)
1628 ✗ s->off = off;
1629
1630 ✗ err = (off == s->off) ? 0 : -1;
1631 ✗ done:
1632 ✗ av_freep(&authstr);
1633 ✗ av_freep(&proxyauthstr);
1634 ✗ return err;
1635 }
1636
1637 ✗ static int http_buf_read(URLContext *h, uint8_t *buf, int size)
1638 {
1639 ✗ HTTPContext *s = h->priv_data;
1640 int len;
1641
1642 ✗ if (s->chunksize != UINT64_MAX) {
1643 ✗ if (s->chunkend) {
1644 ✗ return AVERROR_EOF;
1645 }
1646 ✗ if (!s->chunksize) {
1647 char line[32];
1648 int err;
1649
1650 do {
1651 ✗ if ((err = http_get_line(s, line, sizeof(line))) < 0)
1652 ✗ return err;
1653 ✗ } while (!*line); /* skip CR LF from last chunk */
1654
1655 ✗ s->chunksize = strtoull(line, NULL, 16);
1656
1657 ✗ av_log(h, AV_LOG_TRACE,
1658 "Chunked encoding data size: %"PRIu64"\n",
1659 s->chunksize);
1660
1661 ✗ if (!s->chunksize && s->multiple_requests) {
1662 ✗ http_get_line(s, line, sizeof(line)); // read empty chunk
1663 ✗ s->chunkend = 1;
1664 ✗ return 0;
1665 }
1666 ✗ else if (!s->chunksize) {
1667 ✗ av_log(h, AV_LOG_DEBUG, "Last chunk received, closing conn\n");
1668 ✗ ffurl_closep(&s->hd);
1669 ✗ return 0;
1670 }
1671 ✗ else if (s->chunksize == UINT64_MAX) {
1672 ✗ av_log(h, AV_LOG_ERROR, "Invalid chunk size %"PRIu64"\n",
1673 s->chunksize);
1674 ✗ return AVERROR(EINVAL);
1675 }
1676 }
1677 ✗ size = FFMIN(size, s->chunksize);
1678 }
1679
1680 /* read bytes from input buffer first */
1681 ✗ len = s->buf_end - s->buf_ptr;
1682 ✗ if (len > 0) {
1683 ✗ if (len > size)
1684 ✗ len = size;
1685 ✗ memcpy(buf, s->buf_ptr, len);
1686 ✗ s->buf_ptr += len;
1687 } else {
1688 ✗ uint64_t target_end = s->end_off ? s->end_off : s->filesize;
1689 ✗ if ((!s->willclose || s->chunksize == UINT64_MAX) && s->off >= target_end)
1690 ✗ return AVERROR_EOF;
1691 ✗ len = ffurl_read(s->hd, buf, size);
1692 ✗ if ((!len || len == AVERROR_EOF) &&
1693 ✗ (!s->willclose || s->chunksize == UINT64_MAX) && s->off < target_end) {
1694 ✗ av_log(h, AV_LOG_ERROR,
1695 "Stream ends prematurely at %"PRIu64", should be %"PRIu64"\n",
1696 s->off, target_end
1697 );
1698 ✗ return AVERROR(EIO);
1699 }
1700 }
1701 ✗ if (len > 0) {
1702 ✗ s->off += len;
1703 ✗ if (s->chunksize > 0 && s->chunksize != UINT64_MAX) {
1704 ✗ av_assert0(s->chunksize >= len);
1705 ✗ s->chunksize -= len;
1706 }
1707 }
1708 ✗ return len;
1709 }
1710
1711 #if CONFIG_ZLIB
1712 #define DECOMPRESS_BUF_SIZE (256 * 1024)
1713 ✗ static int http_buf_read_compressed(URLContext *h, uint8_t *buf, int size)
1714 {
1715 ✗ HTTPContext *s = h->priv_data;
1716 int ret;
1717
1718 ✗ if (!s->inflate_buffer) {
1719 ✗ s->inflate_buffer = av_malloc(DECOMPRESS_BUF_SIZE);
1720 ✗ if (!s->inflate_buffer)
1721 ✗ return AVERROR(ENOMEM);
1722 }
1723
1724 ✗ if (s->inflate_stream.avail_in == 0) {
1725 ✗ int read = http_buf_read(h, s->inflate_buffer, DECOMPRESS_BUF_SIZE);
1726 ✗ if (read <= 0)
1727 ✗ return read;
1728 ✗ s->inflate_stream.next_in = s->inflate_buffer;
1729 ✗ s->inflate_stream.avail_in = read;
1730 }
1731
1732 ✗ s->inflate_stream.avail_out = size;
1733 ✗ s->inflate_stream.next_out = buf;
1734
1735 ✗ ret = inflate(&s->inflate_stream, Z_SYNC_FLUSH);
1736 ✗ if (ret != Z_OK && ret != Z_STREAM_END)
1737 ✗ av_log(h, AV_LOG_WARNING, "inflate return value: %d, %s\n",
1738 ret, s->inflate_stream.msg);
1739
1740 ✗ return size - s->inflate_stream.avail_out;
1741 }
1742 #endif /* CONFIG_ZLIB */
1743
1744 static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect);
1745
1746 ✗ static int http_read_stream(URLContext *h, uint8_t *buf, int size)
1747 {
1748 ✗ HTTPContext *s = h->priv_data;
1749 int err, read_ret;
1750 int64_t seek_ret;
1751 ✗ int reconnect_delay = 0;
1752 ✗ int reconnect_delay_total = 0;
1753 ✗ int conn_attempts = 1;
1754
1755 ✗ if (!s->hd)
1756 ✗ return AVERROR_EOF;
1757
1758 ✗ if (s->end_chunked_post && !s->end_header) {
1759 ✗ err = http_read_header(h);
1760 ✗ if (err < 0)
1761 ✗ return err;
1762 }
1763
1764 #if CONFIG_ZLIB
1765 ✗ if (s->compressed)
1766 ✗ return http_buf_read_compressed(h, buf, size);
1767 #endif /* CONFIG_ZLIB */
1768 ✗ read_ret = http_buf_read(h, buf, size);
1769 ✗ while (read_ret < 0) {
1770 ✗ uint64_t target = h->is_streamed ? 0 : s->off;
1771 ✗ bool is_premature = s->filesize > 0 && s->off < s->filesize;
1772
1773 ✗ if (read_ret == AVERROR_EXIT)
1774 ✗ break;
1775
1776 ✗ if (h->is_streamed && !s->reconnect_streamed)
1777 ✗ break;
1778
1779 ✗ if (!(s->reconnect && is_premature) &&
1780 ✗ !(s->reconnect_at_eof && read_ret == AVERROR_EOF)) {
1781 ✗ if (is_premature)
1782 ✗ return AVERROR(EIO);
1783 else
1784 ✗ break;
1785 }
1786
1787 ✗ if (reconnect_delay > s->reconnect_delay_max || (s->reconnect_max_retries >= 0 && conn_attempts > s->reconnect_max_retries) ||
1788 ✗ reconnect_delay_total > s->reconnect_delay_total_max)
1789 ✗ return AVERROR(EIO);
1790
1791 ✗ av_log(h, AV_LOG_WARNING, "Will reconnect at %"PRIu64" in %d second(s), error=%s.\n", s->off, reconnect_delay, av_err2str(read_ret));
1792 ✗ err = ff_network_sleep_interruptible(1000U*1000*reconnect_delay, &h->interrupt_callback);
1793 ✗ if (err != AVERROR(ETIMEDOUT))
1794 ✗ return err;
1795 ✗ reconnect_delay_total += reconnect_delay;
1796 ✗ reconnect_delay = 1 + 2*reconnect_delay;
1797 ✗ conn_attempts++;
1798 ✗ seek_ret = http_seek_internal(h, target, SEEK_SET, 1);
1799 ✗ if (seek_ret >= 0 && seek_ret != target) {
1800 ✗ av_log(h, AV_LOG_ERROR, "Failed to reconnect at %"PRIu64".\n", target);
1801 ✗ return read_ret;
1802 }
1803
1804 ✗ read_ret = http_buf_read(h, buf, size);
1805 }
1806
1807 ✗ return read_ret;
1808 }
1809
1810 // Like http_read_stream(), but no short reads.
1811 // Assumes partial reads are an error.
1812 ✗ static int http_read_stream_all(URLContext *h, uint8_t *buf, int size)
1813 {
1814 ✗ int pos = 0;
1815 ✗ while (pos < size) {
1816 ✗ int len = http_read_stream(h, buf + pos, size - pos);
1817 ✗ if (len < 0)
1818 ✗ return len;
1819 ✗ pos += len;
1820 }
1821 ✗ return pos;
1822 }
1823
1824 ✗ static void update_metadata(URLContext *h, char *data)
1825 {
1826 char *key;
1827 char *val;
1828 char *end;
1829 ✗ char *next = data;
1830 ✗ HTTPContext *s = h->priv_data;
1831
1832 ✗ while (*next) {
1833 ✗ key = next;
1834 ✗ val = strstr(key, "='");
1835 ✗ if (!val)
1836 ✗ break;
1837 ✗ end = strstr(val, "';");
1838 ✗ if (!end)
1839 ✗ break;
1840
1841 ✗ *val = '\0';
1842 ✗ *end = '\0';
1843 ✗ val += 2;
1844
1845 ✗ av_dict_set(&s->metadata, key, val, 0);
1846 ✗ av_log(h, AV_LOG_VERBOSE, "Metadata update for %s: %s\n", key, val);
1847
1848 ✗ next = end + 2;
1849 }
1850 ✗ }
1851
1852 ✗ static int store_icy(URLContext *h, int size)
1853 {
1854 ✗ HTTPContext *s = h->priv_data;
1855 /* until next metadata packet */
1856 uint64_t remaining;
1857
1858 ✗ if (s->icy_metaint < s->icy_data_read)
1859 ✗ return AVERROR_INVALIDDATA;
1860 ✗ remaining = s->icy_metaint - s->icy_data_read;
1861
1862 ✗ if (!remaining) {
1863 /* The metadata packet is variable sized. It has a 1 byte header
1864 * which sets the length of the packet (divided by 16). If it's 0,
1865 * the metadata doesn't change. After the packet, icy_metaint bytes
1866 * of normal data follows. */
1867 uint8_t ch;
1868 ✗ int len = http_read_stream_all(h, &ch, 1);
1869 ✗ if (len < 0)
1870 ✗ return len;
1871 ✗ if (ch > 0) {
1872 char data[255 * 16 + 1];
1873 int ret;
1874 ✗ len = ch * 16;
1875 ✗ ret = http_read_stream_all(h, data, len);
1876 ✗ if (ret < 0)
1877 ✗ return ret;
1878 ✗ data[len] = 0;
1879 ✗ if ((ret = av_opt_set(s, "icy_metadata_packet", data, 0)) < 0)
1880 ✗ return ret;
1881 ✗ update_metadata(h, data);
1882 }
1883 ✗ s->icy_data_read = 0;
1884 ✗ remaining = s->icy_metaint;
1885 }
1886
1887 ✗ return FFMIN(size, remaining);
1888 }
1889
1890 ✗ static int http_read(URLContext *h, uint8_t *buf, int size)
1891 {
1892 ✗ HTTPContext *s = h->priv_data;
1893
1894 ✗ if (s->icy_metaint > 0) {
1895 ✗ size = store_icy(h, size);
1896 ✗ if (size < 0)
1897 ✗ return size;
1898 }
1899
1900 ✗ size = http_read_stream(h, buf, size);
1901 ✗ if (size > 0)
1902 ✗ s->icy_data_read += size;
1903 ✗ return size;
1904 }
1905
1906 /* used only when posting data */
1907 ✗ static int http_write(URLContext *h, const uint8_t *buf, int size)
1908 {
1909 ✗ char temp[11] = ""; /* 32-bit hex + CRLF + nul */
1910 int ret;
1911 ✗ char crlf[] = "\r\n";
1912 ✗ HTTPContext *s = h->priv_data;
1913
1914 ✗ if (!s->chunked_post) {
1915 /* non-chunked data is sent without any special encoding */
1916 ✗ return ffurl_write(s->hd, buf, size);
1917 }
1918
1919 /* silently ignore zero-size data since chunk encoding that would
1920 * signal EOF */
1921 ✗ if (size > 0) {
1922 /* upload data using chunked encoding */
1923 ✗ snprintf(temp, sizeof(temp), "%x\r\n", size);
1924
1925 ✗ if ((ret = ffurl_write(s->hd, temp, strlen(temp))) < 0 ||
1926 ✗ (ret = ffurl_write(s->hd, buf, size)) < 0 ||
1927 ✗ (ret = ffurl_write(s->hd, crlf, sizeof(crlf) - 1)) < 0)
1928 ✗ return ret;
1929 }
1930 ✗ return size;
1931 }
1932
1933 ✗ static int http_shutdown(URLContext *h, int flags)
1934 {
1935 ✗ int ret = 0;
1936 ✗ char footer[] = "0\r\n\r\n";
1937 ✗ HTTPContext *s = h->priv_data;
1938
1939 /* signal end of chunked encoding if used */
1940 ✗ if (((flags & AVIO_FLAG_WRITE) && s->chunked_post) ||
1941 ✗ ((flags & AVIO_FLAG_READ) && s->chunked_post && s->listen)) {
1942 ✗ ret = ffurl_write(s->hd, footer, sizeof(footer) - 1);
1943 ✗ ret = ret > 0 ? 0 : ret;
1944 /* flush the receive buffer when it is write only mode */
1945 ✗ if (!(flags & AVIO_FLAG_READ)) {
1946 char buf[1024];
1947 int read_ret;
1948 ✗ s->hd->flags |= AVIO_FLAG_NONBLOCK;
1949 ✗ read_ret = ffurl_read(s->hd, buf, sizeof(buf));
1950 ✗ s->hd->flags &= ~AVIO_FLAG_NONBLOCK;
1951 ✗ if (read_ret < 0 && read_ret != AVERROR(EAGAIN)) {
1952 ✗ av_log(h, AV_LOG_ERROR, "URL read error: %s\n", av_err2str(read_ret));
1953 ✗ ret = read_ret;
1954 }
1955 }
1956 ✗ s->end_chunked_post = 1;
1957 }
1958
1959 ✗ return ret;
1960 }
1961
1962 ✗ static int http_close(URLContext *h)
1963 {
1964 ✗ int ret = 0;
1965 ✗ HTTPContext *s = h->priv_data;
1966
1967 #if CONFIG_ZLIB
1968 ✗ inflateEnd(&s->inflate_stream);
1969 ✗ av_freep(&s->inflate_buffer);
1970 #endif /* CONFIG_ZLIB */
1971
1972 ✗ if (s->hd && !s->end_chunked_post)
1973 /* Close the write direction by sending the end of chunked encoding. */
1974 ✗ ret = http_shutdown(h, h->flags);
1975
1976 ✗ if (s->hd)
1977 ✗ ffurl_closep(&s->hd);
1978 ✗ av_dict_free(&s->chained_options);
1979 ✗ av_dict_free(&s->cookie_dict);
1980 ✗ av_dict_free(&s->redirect_cache);
1981 ✗ av_freep(&s->new_location);
1982 ✗ av_freep(&s->uri);
1983 ✗ return ret;
1984 }
1985
1986 ✗ static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect)
1987 {
1988 ✗ HTTPContext *s = h->priv_data;
1989 ✗ URLContext *old_hd = s->hd;
1990 ✗ uint64_t old_off = s->off;
1991 uint8_t old_buf[BUFFER_SIZE];
1992 int old_buf_size, ret;
1993 ✗ AVDictionary *options = NULL;
1994
1995 ✗ if (whence == AVSEEK_SIZE)
1996 ✗ return s->filesize;
1997 ✗ else if (!force_reconnect &&
1998 ✗ ((whence == SEEK_CUR && off == 0) ||
1999 ✗ (whence == SEEK_SET && off == s->off)))
2000 ✗ return s->off;
2001 ✗ else if ((s->filesize == UINT64_MAX && whence == SEEK_END))
2002 ✗ return AVERROR(ENOSYS);
2003
2004 ✗ if (whence == SEEK_CUR)
2005 ✗ off += s->off;
2006 ✗ else if (whence == SEEK_END)
2007 ✗ off += s->filesize;
2008 ✗ else if (whence != SEEK_SET)
2009 ✗ return AVERROR(EINVAL);
2010 ✗ if (off < 0)
2011 ✗ return AVERROR(EINVAL);
2012 ✗ s->off = off;
2013
2014 ✗ if (s->off && h->is_streamed)
2015 ✗ return AVERROR(ENOSYS);
2016
2017 /* do not try to make a new connection if seeking past the end of the file */
2018 ✗ if (s->end_off || s->filesize != UINT64_MAX) {
2019 ✗ uint64_t end_pos = s->end_off ? s->end_off : s->filesize;
2020 ✗ if (s->off >= end_pos)
2021 ✗ return s->off;
2022 }
2023
2024 /* if the location changed (redirect), revert to the original uri */
2025 ✗ if (strcmp(s->uri, s->location)) {
2026 char *new_uri;
2027 ✗ new_uri = av_strdup(s->uri);
2028 ✗ if (!new_uri)
2029 ✗ return AVERROR(ENOMEM);
2030 ✗ av_free(s->location);
2031 ✗ s->location = new_uri;
2032 }
2033
2034 /* we save the old context in case the seek fails */
2035 ✗ old_buf_size = s->buf_end - s->buf_ptr;
2036 ✗ memcpy(old_buf, s->buf_ptr, old_buf_size);
2037 ✗ s->hd = NULL;
2038
2039 /* if it fails, continue on old connection */
2040 ✗ if ((ret = http_open_cnx(h, &options)) < 0) {
2041 ✗ av_dict_free(&options);
2042 ✗ memcpy(s->buffer, old_buf, old_buf_size);
2043 ✗ s->buf_ptr = s->buffer;
2044 ✗ s->buf_end = s->buffer + old_buf_size;
2045 ✗ s->hd = old_hd;
2046 ✗ s->off = old_off;
2047 ✗ return ret;
2048 }
2049 ✗ av_dict_free(&options);
2050 ✗ ffurl_close(old_hd);
2051 ✗ return off;
2052 }
2053
2054 ✗ static int64_t http_seek(URLContext *h, int64_t off, int whence)
2055 {
2056 ✗ return http_seek_internal(h, off, whence, 0);
2057 }
2058
2059 ✗ static int http_get_file_handle(URLContext *h)
2060 {
2061 ✗ HTTPContext *s = h->priv_data;
2062 ✗ return ffurl_get_file_handle(s->hd);
2063 }
2064
2065 ✗ static int http_get_short_seek(URLContext *h)
2066 {
2067 ✗ HTTPContext *s = h->priv_data;
2068 ✗ if (s->short_seek_size >= 1)
2069 ✗ return s->short_seek_size;
2070 ✗ return ffurl_get_short_seek(s->hd);
2071 }
2072
2073 #define HTTP_CLASS(flavor) \
2074 static const AVClass flavor ## _context_class = { \
2075 .class_name = # flavor, \
2076 .item_name = av_default_item_name, \
2077 .option = options, \
2078 .version = LIBAVUTIL_VERSION_INT, \
2079 }
2080
2081 #if CONFIG_HTTP_PROTOCOL
2082 HTTP_CLASS(http);
2083
2084 const URLProtocol ff_http_protocol = {
2085 .name = "http",
2086 .url_open2 = http_open,
2087 .url_accept = http_accept,
2088 .url_handshake = http_handshake,
2089 .url_read = http_read,
2090 .url_write = http_write,
2091 .url_seek = http_seek,
2092 .url_close = http_close,
2093 .url_get_file_handle = http_get_file_handle,
2094 .url_get_short_seek = http_get_short_seek,
2095 .url_shutdown = http_shutdown,
2096 .priv_data_size = sizeof(HTTPContext),
2097 .priv_data_class = &http_context_class,
2098 .flags = URL_PROTOCOL_FLAG_NETWORK,
2099 .default_whitelist = "http,https,tls,rtp,tcp,udp,crypto,httpproxy,data"
2100 };
2101 #endif /* CONFIG_HTTP_PROTOCOL */
2102
2103 #if CONFIG_HTTPS_PROTOCOL
2104 HTTP_CLASS(https);
2105
2106 const URLProtocol ff_https_protocol = {
2107 .name = "https",
2108 .url_open2 = http_open,
2109 .url_read = http_read,
2110 .url_write = http_write,
2111 .url_seek = http_seek,
2112 .url_close = http_close,
2113 .url_get_file_handle = http_get_file_handle,
2114 .url_get_short_seek = http_get_short_seek,
2115 .url_shutdown = http_shutdown,
2116 .priv_data_size = sizeof(HTTPContext),
2117 .priv_data_class = &https_context_class,
2118 .flags = URL_PROTOCOL_FLAG_NETWORK,
2119 .default_whitelist = "http,https,tls,rtp,tcp,udp,crypto,httpproxy"
2120 };
2121 #endif /* CONFIG_HTTPS_PROTOCOL */
2122
2123 #if CONFIG_HTTPPROXY_PROTOCOL
2124 ✗ static int http_proxy_close(URLContext *h)
2125 {
2126 ✗ HTTPContext *s = h->priv_data;
2127 ✗ if (s->hd)
2128 ✗ ffurl_closep(&s->hd);
2129 ✗ return 0;
2130 }
2131
2132 ✗ static int http_proxy_open(URLContext *h, const char *uri, int flags)
2133 {
2134 ✗ HTTPContext *s = h->priv_data;
2135 char hostname[1024], hoststr[1024];
2136 char auth[1024], pathbuf[1024], *path;
2137 char lower_url[100];
2138 ✗ int port, ret = 0, auth_attempts = 0;
2139 HTTPAuthType cur_auth_type;
2140 char *authstr;
2141
2142 ✗ if( s->seekable == 1 )
2143 ✗ h->is_streamed = 0;
2144 else
2145 ✗ h->is_streamed = 1;
2146
2147 ✗ av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
2148 pathbuf, sizeof(pathbuf), uri);
2149 ✗ ff_url_join(hoststr, sizeof(hoststr), NULL, NULL, hostname, port, NULL);
2150 ✗ path = pathbuf;
2151 ✗ if (*path == '/')
2152 ✗ path++;
2153
2154 ✗ ff_url_join(lower_url, sizeof(lower_url), "tcp", NULL, hostname, port,
2155 NULL);
2156 ✗ redo:
2157 ✗ ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
2158 ✗ &h->interrupt_callback, NULL,
2159 h->protocol_whitelist, h->protocol_blacklist, h);
2160 ✗ if (ret < 0)
2161 ✗ return ret;
2162
2163 ✗ authstr = ff_http_auth_create_response(&s->proxy_auth_state, auth,
2164 path, "CONNECT");
2165 ✗ snprintf(s->buffer, sizeof(s->buffer),
2166 "CONNECT %s HTTP/1.1\r\n"
2167 "Host: %s\r\n"
2168 "Connection: close\r\n"
2169 "%s%s"
2170 "\r\n",
2171 path,
2172 hoststr,
2173 ✗ authstr ? "Proxy-" : "", authstr ? authstr : "");
2174 ✗ av_freep(&authstr);
2175
2176 ✗ if ((ret = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0)
2177 ✗ goto fail;
2178
2179 ✗ s->buf_ptr = s->buffer;
2180 ✗ s->buf_end = s->buffer;
2181 ✗ s->line_count = 0;
2182 ✗ s->filesize = UINT64_MAX;
2183 ✗ cur_auth_type = s->proxy_auth_state.auth_type;
2184
2185 /* Note: This uses buffering, potentially reading more than the
2186 * HTTP header. If tunneling a protocol where the server starts
2187 * the conversation, we might buffer part of that here, too.
2188 * Reading that requires using the proper ffurl_read() function
2189 * on this URLContext, not using the fd directly (as the tls
2190 * protocol does). This shouldn't be an issue for tls though,
2191 * since the client starts the conversation there, so there
2192 * is no extra data that we might buffer up here.
2193 */
2194 ✗ ret = http_read_header(h);
2195 ✗ if (ret < 0)
2196 ✗ goto fail;
2197
2198 ✗ auth_attempts++;
2199 ✗ if (s->http_code == 407 &&
2200 ✗ (cur_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
2201 ✗ s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && auth_attempts < 2) {
2202 ✗ ffurl_closep(&s->hd);
2203 ✗ goto redo;
2204 }
2205
2206 ✗ if (s->http_code < 400)
2207 ✗ return 0;
2208 ✗ ret = ff_http_averror(s->http_code, AVERROR(EIO));
2209
2210 ✗ fail:
2211 ✗ http_proxy_close(h);
2212 ✗ return ret;
2213 }
2214
2215 ✗ static int http_proxy_write(URLContext *h, const uint8_t *buf, int size)
2216 {
2217 ✗ HTTPContext *s = h->priv_data;
2218 ✗ return ffurl_write(s->hd, buf, size);
2219 }
2220
2221 const URLProtocol ff_httpproxy_protocol = {
2222 .name = "httpproxy",
2223 .url_open = http_proxy_open,
2224 .url_read = http_buf_read,
2225 .url_write = http_proxy_write,
2226 .url_close = http_proxy_close,
2227 .url_get_file_handle = http_get_file_handle,
2228 .priv_data_size = sizeof(HTTPContext),
2229 .flags = URL_PROTOCOL_FLAG_NETWORK,
2230 };
2231 #endif /* CONFIG_HTTPPROXY_PROTOCOL */
2232