FFmpeg  4.2.2
http.c
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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 "config.h"
23 
24 #if CONFIG_ZLIB
25 #include <zlib.h>
26 #endif /* CONFIG_ZLIB */
27 
28 #include "libavutil/avassert.h"
29 #include "libavutil/avstring.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/time.h"
32 #include "libavutil/parseutils.h"
33 
34 #include "avformat.h"
35 #include "http.h"
36 #include "httpauth.h"
37 #include "internal.h"
38 #include "network.h"
39 #include "os_support.h"
40 #include "url.h"
41 
42 /* XXX: POST protocol is not completely implemented because ffmpeg uses
43  * only a subset of it. */
44 
45 /* The IO buffer size is unrelated to the max URL size in itself, but needs
46  * to be large enough to fit the full request headers (including long
47  * path names). */
48 #define BUFFER_SIZE MAX_URL_SIZE
49 #define MAX_REDIRECTS 8
50 #define HTTP_SINGLE 1
51 #define HTTP_MUTLI 2
52 #define MAX_EXPIRY 19
53 #define WHITESPACES " \n\t\r"
54 typedef enum {
60 
61 typedef struct HTTPContext {
62  const AVClass *class;
64  unsigned char buffer[BUFFER_SIZE], *buf_ptr, *buf_end;
66  int http_code;
67  /* Used if "Transfer-Encoding: chunked" otherwise -1. */
68  uint64_t chunksize;
69  int chunkend;
70  uint64_t off, end_off, filesize;
71  char *location;
74  char *http_proxy;
75  char *headers;
76  char *mime_type;
77  char *http_version;
78  char *user_agent;
79  char *referer;
80 #if FF_API_HTTP_USER_AGENT
81  char *user_agent_deprecated;
82 #endif
83  char *content_type;
84  /* Set if the server correctly handles Connection: close and will close
85  * the connection after feeding us the content. */
86  int willclose;
87  int seekable; /**< Control seekability, 0 = disable, 1 = enable, -1 = probe. */
89  /* A flag which indicates if the end of chunked encoding has been sent. */
91  /* A flag which indicates we have finished to read POST reply. */
93  /* A flag which indicates if we use persistent connections. */
97  int is_akamai;
99  char *cookies; ///< holds newline (\n) delimited Set-Cookie header field values (without the "Set-Cookie: " field name)
100  /* A dictionary containing cookies keyed by cookie name */
102  int icy;
103  /* how much data was read since the last ICY metadata packet */
104  uint64_t icy_data_read;
105  /* after how many bytes of read data a new metadata packet will be found */
106  uint64_t icy_metaint;
110 #if CONFIG_ZLIB
111  int compressed;
112  z_stream inflate_stream;
113  uint8_t *inflate_buffer;
114 #endif /* CONFIG_ZLIB */
116  /* -1 = try to send if applicable, 0 = always disabled, 1 = always enabled */
118  char *method;
123  int listen;
124  char *resource;
129 } HTTPContext;
130 
131 #define OFFSET(x) offsetof(HTTPContext, x)
132 #define D AV_OPT_FLAG_DECODING_PARAM
133 #define E AV_OPT_FLAG_ENCODING_PARAM
134 #define DEFAULT_USER_AGENT "Lavf/" AV_STRINGIFY(LIBAVFORMAT_VERSION)
135 
136 static const AVOption options[] = {
137  { "seekable", "control seekability of connection", OFFSET(seekable), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, D },
138  { "chunked_post", "use chunked transfer-encoding for posts", OFFSET(chunked_post), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, E },
139  { "http_proxy", "set HTTP proxy to tunnel through", OFFSET(http_proxy), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
140  { "headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
141  { "content_type", "set a specific content type for the POST messages", OFFSET(content_type), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
142  { "user_agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, { .str = DEFAULT_USER_AGENT }, 0, 0, D },
143  { "referer", "override referer header", OFFSET(referer), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D },
144 #if FF_API_HTTP_USER_AGENT
145  { "user-agent", "use the \"user_agent\" option instead", OFFSET(user_agent_deprecated), AV_OPT_TYPE_STRING, { .str = DEFAULT_USER_AGENT }, 0, 0, D|AV_OPT_FLAG_DEPRECATED },
146 #endif
147  { "multiple_requests", "use persistent connections", OFFSET(multiple_requests), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D | E },
148  { "post_data", "set custom HTTP post data", OFFSET(post_data), AV_OPT_TYPE_BINARY, .flags = D | E },
149  { "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 },
150  { "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 },
151  { "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 },
152  { "icy", "request ICY metadata", OFFSET(icy), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, D },
153  { "icy_metadata_headers", "return ICY metadata headers", OFFSET(icy_metadata_headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT },
154  { "icy_metadata_packet", "return current ICY metadata packet", OFFSET(icy_metadata_packet), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT },
155  { "metadata", "metadata read from the bitstream", OFFSET(metadata), AV_OPT_TYPE_DICT, {0}, 0, 0, AV_OPT_FLAG_EXPORT },
156  { "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, "auth_type"},
157  { "none", "No auth method set, autodetect", 0, AV_OPT_TYPE_CONST, { .i64 = HTTP_AUTH_NONE }, 0, 0, D | E, "auth_type"},
158  { "basic", "HTTP basic authentication", 0, AV_OPT_TYPE_CONST, { .i64 = HTTP_AUTH_BASIC }, 0, 0, D | E, "auth_type"},
159  { "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 },
160  { "location", "The actual location of the data received", OFFSET(location), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
161  { "offset", "initial byte offset", OFFSET(off), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, D },
162  { "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 },
163  { "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 },
164  { "reconnect", "auto reconnect after disconnect before EOF", OFFSET(reconnect), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
165  { "reconnect_at_eof", "auto reconnect at EOF", OFFSET(reconnect_at_eof), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
166  { "reconnect_streamed", "auto reconnect streamed / non seekable streams", OFFSET(reconnect_streamed), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
167  { "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 },
168  { "listen", "listen on HTTP", OFFSET(listen), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, D | E },
169  { "resource", "The resource requested by a client", OFFSET(resource), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
170  { "reply_code", "The http status code to return to a client", OFFSET(reply_code), AV_OPT_TYPE_INT, { .i64 = 200}, INT_MIN, 599, E},
171  { NULL }
172 };
173 
174 static int http_connect(URLContext *h, const char *path, const char *local_path,
175  const char *hoststr, const char *auth,
176  const char *proxyauth, int *new_location);
177 static int http_read_header(URLContext *h, int *new_location);
178 static int http_shutdown(URLContext *h, int flags);
179 
181 {
182  memcpy(&((HTTPContext *)dest->priv_data)->auth_state,
183  &((HTTPContext *)src->priv_data)->auth_state,
184  sizeof(HTTPAuthState));
185  memcpy(&((HTTPContext *)dest->priv_data)->proxy_auth_state,
186  &((HTTPContext *)src->priv_data)->proxy_auth_state,
187  sizeof(HTTPAuthState));
188 }
189 
191 {
192  const char *path, *proxy_path, *lower_proto = "tcp", *local_path;
193  char hostname[1024], hoststr[1024], proto[10];
194  char auth[1024], proxyauth[1024] = "";
195  char path1[MAX_URL_SIZE];
196  char buf[1024], urlbuf[MAX_URL_SIZE];
197  int port, use_proxy, err, location_changed = 0;
198  HTTPContext *s = h->priv_data;
199 
200  av_url_split(proto, sizeof(proto), auth, sizeof(auth),
201  hostname, sizeof(hostname), &port,
202  path1, sizeof(path1), s->location);
203  ff_url_join(hoststr, sizeof(hoststr), NULL, NULL, hostname, port, NULL);
204 
205  proxy_path = s->http_proxy ? s->http_proxy : getenv("http_proxy");
206  use_proxy = !ff_http_match_no_proxy(getenv("no_proxy"), hostname) &&
207  proxy_path && av_strstart(proxy_path, "http://", NULL);
208 
209  if (!strcmp(proto, "https")) {
210  lower_proto = "tls";
211  use_proxy = 0;
212  if (port < 0)
213  port = 443;
214  }
215  if (port < 0)
216  port = 80;
217 
218  if (path1[0] == '\0')
219  path = "/";
220  else
221  path = path1;
222  local_path = path;
223  if (use_proxy) {
224  /* Reassemble the request URL without auth string - we don't
225  * want to leak the auth to the proxy. */
226  ff_url_join(urlbuf, sizeof(urlbuf), proto, NULL, hostname, port, "%s",
227  path1);
228  path = urlbuf;
229  av_url_split(NULL, 0, proxyauth, sizeof(proxyauth),
230  hostname, sizeof(hostname), &port, NULL, 0, proxy_path);
231  }
232 
233  ff_url_join(buf, sizeof(buf), lower_proto, NULL, hostname, port, NULL);
234 
235  if (!s->hd) {
237  &h->interrupt_callback, options,
239  if (err < 0)
240  return err;
241  }
242 
243  err = http_connect(h, path, local_path, hoststr,
244  auth, proxyauth, &location_changed);
245  if (err < 0)
246  return err;
247 
248  return location_changed;
249 }
250 
251 /* return non zero if error */
252 static int http_open_cnx(URLContext *h, AVDictionary **options)
253 {
254  HTTPAuthType cur_auth_type, cur_proxy_auth_type;
255  HTTPContext *s = h->priv_data;
256  int location_changed, attempts = 0, redirects = 0;
257 redo:
258  av_dict_copy(options, s->chained_options, 0);
259 
260  cur_auth_type = s->auth_state.auth_type;
261  cur_proxy_auth_type = s->auth_state.auth_type;
262 
263  location_changed = http_open_cnx_internal(h, options);
264  if (location_changed < 0)
265  goto fail;
266 
267  attempts++;
268  if (s->http_code == 401) {
269  if ((cur_auth_type == HTTP_AUTH_NONE || s->auth_state.stale) &&
270  s->auth_state.auth_type != HTTP_AUTH_NONE && attempts < 4) {
271  ffurl_closep(&s->hd);
272  goto redo;
273  } else
274  goto fail;
275  }
276  if (s->http_code == 407) {
277  if ((cur_proxy_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
278  s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && attempts < 4) {
279  ffurl_closep(&s->hd);
280  goto redo;
281  } else
282  goto fail;
283  }
284  if ((s->http_code == 301 || s->http_code == 302 ||
285  s->http_code == 303 || s->http_code == 307) &&
286  location_changed == 1) {
287  /* url moved, get next */
288  ffurl_closep(&s->hd);
289  if (redirects++ >= MAX_REDIRECTS)
290  return AVERROR(EIO);
291  /* Restart the authentication process with the new target, which
292  * might use a different auth mechanism. */
293  memset(&s->auth_state, 0, sizeof(s->auth_state));
294  attempts = 0;
295  location_changed = 0;
296  goto redo;
297  }
298  return 0;
299 
300 fail:
301  if (s->hd)
302  ffurl_closep(&s->hd);
303  if (location_changed < 0)
304  return location_changed;
305  return ff_http_averror(s->http_code, AVERROR(EIO));
306 }
307 
308 int ff_http_do_new_request(URLContext *h, const char *uri)
309 {
310  HTTPContext *s = h->priv_data;
311  AVDictionary *options = NULL;
312  int ret;
313  char hostname1[1024], hostname2[1024], proto1[10], proto2[10];
314  int port1, port2;
315 
316  if (!h->prot ||
317  !(!strcmp(h->prot->name, "http") ||
318  !strcmp(h->prot->name, "https")))
319  return AVERROR(EINVAL);
320 
321  av_url_split(proto1, sizeof(proto1), NULL, 0,
322  hostname1, sizeof(hostname1), &port1,
323  NULL, 0, s->location);
324  av_url_split(proto2, sizeof(proto2), NULL, 0,
325  hostname2, sizeof(hostname2), &port2,
326  NULL, 0, uri);
327  if (port1 != port2 || strncmp(hostname1, hostname2, sizeof(hostname2)) != 0) {
328  av_log(h, AV_LOG_ERROR, "Cannot reuse HTTP connection for different host: %s:%d != %s:%d\n",
329  hostname1, port1,
330  hostname2, port2
331  );
332  return AVERROR(EINVAL);
333  }
334 
335  if (!s->end_chunked_post) {
336  ret = http_shutdown(h, h->flags);
337  if (ret < 0)
338  return ret;
339  }
340 
341  if (s->willclose)
342  return AVERROR_EOF;
343 
344  s->end_chunked_post = 0;
345  s->chunkend = 0;
346  s->off = 0;
347  s->icy_data_read = 0;
348  av_free(s->location);
349  s->location = av_strdup(uri);
350  if (!s->location)
351  return AVERROR(ENOMEM);
352 
353  av_log(s, AV_LOG_INFO, "Opening \'%s\' for %s\n", uri, h->flags & AVIO_FLAG_WRITE ? "writing" : "reading");
354  ret = http_open_cnx(h, &options);
355  av_dict_free(&options);
356  return ret;
357 }
358 
359 int ff_http_averror(int status_code, int default_averror)
360 {
361  switch (status_code) {
362  case 400: return AVERROR_HTTP_BAD_REQUEST;
363  case 401: return AVERROR_HTTP_UNAUTHORIZED;
364  case 403: return AVERROR_HTTP_FORBIDDEN;
365  case 404: return AVERROR_HTTP_NOT_FOUND;
366  default: break;
367  }
368  if (status_code >= 400 && status_code <= 499)
369  return AVERROR_HTTP_OTHER_4XX;
370  else if (status_code >= 500)
372  else
373  return default_averror;
374 }
375 
376 static int http_write_reply(URLContext* h, int status_code)
377 {
378  int ret, body = 0, reply_code, message_len;
379  const char *reply_text, *content_type;
380  HTTPContext *s = h->priv_data;
381  char message[BUFFER_SIZE];
382  content_type = "text/plain";
383 
384  if (status_code < 0)
385  body = 1;
386  switch (status_code) {
388  case 400:
389  reply_code = 400;
390  reply_text = "Bad Request";
391  break;
393  case 403:
394  reply_code = 403;
395  reply_text = "Forbidden";
396  break;
398  case 404:
399  reply_code = 404;
400  reply_text = "Not Found";
401  break;
402  case 200:
403  reply_code = 200;
404  reply_text = "OK";
405  content_type = s->content_type ? s->content_type : "application/octet-stream";
406  break;
408  case 500:
409  reply_code = 500;
410  reply_text = "Internal server error";
411  break;
412  default:
413  return AVERROR(EINVAL);
414  }
415  if (body) {
416  s->chunked_post = 0;
417  message_len = snprintf(message, sizeof(message),
418  "HTTP/1.1 %03d %s\r\n"
419  "Content-Type: %s\r\n"
420  "Content-Length: %"SIZE_SPECIFIER"\r\n"
421  "%s"
422  "\r\n"
423  "%03d %s\r\n",
424  reply_code,
425  reply_text,
426  content_type,
427  strlen(reply_text) + 6, // 3 digit status code + space + \r\n
428  s->headers ? s->headers : "",
429  reply_code,
430  reply_text);
431  } else {
432  s->chunked_post = 1;
433  message_len = snprintf(message, sizeof(message),
434  "HTTP/1.1 %03d %s\r\n"
435  "Content-Type: %s\r\n"
436  "Transfer-Encoding: chunked\r\n"
437  "%s"
438  "\r\n",
439  reply_code,
440  reply_text,
441  content_type,
442  s->headers ? s->headers : "");
443  }
444  av_log(h, AV_LOG_TRACE, "HTTP reply header: \n%s----\n", message);
445  if ((ret = ffurl_write(s->hd, message, message_len)) < 0)
446  return ret;
447  return 0;
448 }
449 
450 static void handle_http_errors(URLContext *h, int error)
451 {
452  av_assert0(error < 0);
453  http_write_reply(h, error);
454 }
455 
457 {
458  int ret, err, new_location;
459  HTTPContext *ch = c->priv_data;
460  URLContext *cl = ch->hd;
461  switch (ch->handshake_step) {
462  case LOWER_PROTO:
463  av_log(c, AV_LOG_TRACE, "Lower protocol\n");
464  if ((ret = ffurl_handshake(cl)) > 0)
465  return 2 + ret;
466  if (ret < 0)
467  return ret;
469  ch->is_connected_server = 1;
470  return 2;
471  case READ_HEADERS:
472  av_log(c, AV_LOG_TRACE, "Read headers\n");
473  if ((err = http_read_header(c, &new_location)) < 0) {
474  handle_http_errors(c, err);
475  return err;
476  }
478  return 1;
479  case WRITE_REPLY_HEADERS:
480  av_log(c, AV_LOG_TRACE, "Reply code: %d\n", ch->reply_code);
481  if ((err = http_write_reply(c, ch->reply_code)) < 0)
482  return err;
483  ch->handshake_step = FINISH;
484  return 1;
485  case FINISH:
486  return 0;
487  }
488  // this should never be reached.
489  return AVERROR(EINVAL);
490 }
491 
492 static int http_listen(URLContext *h, const char *uri, int flags,
493  AVDictionary **options) {
494  HTTPContext *s = h->priv_data;
495  int ret;
496  char hostname[1024], proto[10];
497  char lower_url[100];
498  const char *lower_proto = "tcp";
499  int port;
500  av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port,
501  NULL, 0, uri);
502  if (!strcmp(proto, "https"))
503  lower_proto = "tls";
504  ff_url_join(lower_url, sizeof(lower_url), lower_proto, NULL, hostname, port,
505  NULL);
506  if ((ret = av_dict_set_int(options, "listen", s->listen, 0)) < 0)
507  goto fail;
508  if ((ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
509  &h->interrupt_callback, options,
511  )) < 0)
512  goto fail;
514  if (s->listen == HTTP_SINGLE) { /* single client */
515  s->reply_code = 200;
516  while ((ret = http_handshake(h)) > 0);
517  }
518 fail:
520  return ret;
521 }
522 
523 static int http_open(URLContext *h, const char *uri, int flags,
524  AVDictionary **options)
525 {
526  HTTPContext *s = h->priv_data;
527  int ret;
528 
529  if( s->seekable == 1 )
530  h->is_streamed = 0;
531  else
532  h->is_streamed = 1;
533 
534  s->filesize = UINT64_MAX;
535  s->location = av_strdup(uri);
536  if (!s->location)
537  return AVERROR(ENOMEM);
538  if (options)
539  av_dict_copy(&s->chained_options, *options, 0);
540 
541  if (s->headers) {
542  int len = strlen(s->headers);
543  if (len < 2 || strcmp("\r\n", s->headers + len - 2)) {
545  "No trailing CRLF found in HTTP header. Adding it.\n");
546  ret = av_reallocp(&s->headers, len + 3);
547  if (ret < 0)
548  return ret;
549  s->headers[len] = '\r';
550  s->headers[len + 1] = '\n';
551  s->headers[len + 2] = '\0';
552  }
553  }
554 
555  if (s->listen) {
556  return http_listen(h, uri, flags, options);
557  }
558  ret = http_open_cnx(h, options);
559  if (ret < 0)
561  return ret;
562 }
563 
565 {
566  int ret;
567  HTTPContext *sc = s->priv_data;
568  HTTPContext *cc;
569  URLContext *sl = sc->hd;
570  URLContext *cl = NULL;
571 
572  av_assert0(sc->listen);
573  if ((ret = ffurl_alloc(c, s->filename, s->flags, &sl->interrupt_callback)) < 0)
574  goto fail;
575  cc = (*c)->priv_data;
576  if ((ret = ffurl_accept(sl, &cl)) < 0)
577  goto fail;
578  cc->hd = cl;
579  cc->is_multi_client = 1;
580  return 0;
581 fail:
582  if (c) {
583  ffurl_closep(c);
584  }
585  return ret;
586 }
587 
588 static int http_getc(HTTPContext *s)
589 {
590  int len;
591  if (s->buf_ptr >= s->buf_end) {
592  len = ffurl_read(s->hd, s->buffer, BUFFER_SIZE);
593  if (len < 0) {
594  return len;
595  } else if (len == 0) {
596  return AVERROR_EOF;
597  } else {
598  s->buf_ptr = s->buffer;
599  s->buf_end = s->buffer + len;
600  }
601  }
602  return *s->buf_ptr++;
603 }
604 
605 static int http_get_line(HTTPContext *s, char *line, int line_size)
606 {
607  int ch;
608  char *q;
609 
610  q = line;
611  for (;;) {
612  ch = http_getc(s);
613  if (ch < 0)
614  return ch;
615  if (ch == '\n') {
616  /* process line */
617  if (q > line && q[-1] == '\r')
618  q--;
619  *q = '\0';
620 
621  return 0;
622  } else {
623  if ((q - line) < line_size - 1)
624  *q++ = ch;
625  }
626  }
627 }
628 
629 static int check_http_code(URLContext *h, int http_code, const char *end)
630 {
631  HTTPContext *s = h->priv_data;
632  /* error codes are 4xx and 5xx, but regard 401 as a success, so we
633  * don't abort until all headers have been parsed. */
634  if (http_code >= 400 && http_code < 600 &&
635  (http_code != 401 || s->auth_state.auth_type != HTTP_AUTH_NONE) &&
636  (http_code != 407 || s->proxy_auth_state.auth_type != HTTP_AUTH_NONE)) {
637  end += strspn(end, SPACE_CHARS);
638  av_log(h, AV_LOG_WARNING, "HTTP error %d %s\n", http_code, end);
639  return ff_http_averror(http_code, AVERROR(EIO));
640  }
641  return 0;
642 }
643 
644 static int parse_location(HTTPContext *s, const char *p)
645 {
646  char redirected_location[MAX_URL_SIZE], *new_loc;
647  ff_make_absolute_url(redirected_location, sizeof(redirected_location),
648  s->location, p);
649  new_loc = av_strdup(redirected_location);
650  if (!new_loc)
651  return AVERROR(ENOMEM);
652  av_free(s->location);
653  s->location = new_loc;
654  return 0;
655 }
656 
657 /* "bytes $from-$to/$document_size" */
658 static void parse_content_range(URLContext *h, const char *p)
659 {
660  HTTPContext *s = h->priv_data;
661  const char *slash;
662 
663  if (!strncmp(p, "bytes ", 6)) {
664  p += 6;
665  s->off = strtoull(p, NULL, 10);
666  if ((slash = strchr(p, '/')) && strlen(slash) > 0)
667  s->filesize = strtoull(slash + 1, NULL, 10);
668  }
669  if (s->seekable == -1 && (!s->is_akamai || s->filesize != 2147483647))
670  h->is_streamed = 0; /* we _can_ in fact seek */
671 }
672 
673 static int parse_content_encoding(URLContext *h, const char *p)
674 {
675  if (!av_strncasecmp(p, "gzip", 4) ||
676  !av_strncasecmp(p, "deflate", 7)) {
677 #if CONFIG_ZLIB
678  HTTPContext *s = h->priv_data;
679 
680  s->compressed = 1;
681  inflateEnd(&s->inflate_stream);
682  if (inflateInit2(&s->inflate_stream, 32 + 15) != Z_OK) {
683  av_log(h, AV_LOG_WARNING, "Error during zlib initialisation: %s\n",
684  s->inflate_stream.msg);
685  return AVERROR(ENOSYS);
686  }
687  if (zlibCompileFlags() & (1 << 17)) {
689  "Your zlib was compiled without gzip support.\n");
690  return AVERROR(ENOSYS);
691  }
692 #else
694  "Compressed (%s) content, need zlib with gzip support\n", p);
695  return AVERROR(ENOSYS);
696 #endif /* CONFIG_ZLIB */
697  } else if (!av_strncasecmp(p, "identity", 8)) {
698  // The normal, no-encoding case (although servers shouldn't include
699  // the header at all if this is the case).
700  } else {
701  av_log(h, AV_LOG_WARNING, "Unknown content coding: %s\n", p);
702  }
703  return 0;
704 }
705 
706 // Concat all Icy- header lines
707 static int parse_icy(HTTPContext *s, const char *tag, const char *p)
708 {
709  int len = 4 + strlen(p) + strlen(tag);
710  int is_first = !s->icy_metadata_headers;
711  int ret;
712 
713  av_dict_set(&s->metadata, tag, p, 0);
714 
715  if (s->icy_metadata_headers)
716  len += strlen(s->icy_metadata_headers);
717 
718  if ((ret = av_reallocp(&s->icy_metadata_headers, len)) < 0)
719  return ret;
720 
721  if (is_first)
722  *s->icy_metadata_headers = '\0';
723 
724  av_strlcatf(s->icy_metadata_headers, len, "%s: %s\n", tag, p);
725 
726  return 0;
727 }
728 
729 static int parse_set_cookie_expiry_time(const char *exp_str, struct tm *buf)
730 {
731  char exp_buf[MAX_EXPIRY];
732  int i, j, exp_buf_len = MAX_EXPIRY-1;
733  char *expiry;
734 
735  // strip off any punctuation or whitespace
736  for (i = 0, j = 0; exp_str[i] != '\0' && j < exp_buf_len; i++) {
737  if ((exp_str[i] >= '0' && exp_str[i] <= '9') ||
738  (exp_str[i] >= 'A' && exp_str[i] <= 'Z') ||
739  (exp_str[i] >= 'a' && exp_str[i] <= 'z')) {
740  exp_buf[j] = exp_str[i];
741  j++;
742  }
743  }
744  exp_buf[j] = '\0';
745  expiry = exp_buf;
746 
747  // move the string beyond the day of week
748  while ((*expiry < '0' || *expiry > '9') && *expiry != '\0')
749  expiry++;
750 
751  return av_small_strptime(expiry, "%d%b%Y%H%M%S", buf) ? 0 : AVERROR(EINVAL);
752 }
753 
754 static int parse_set_cookie(const char *set_cookie, AVDictionary **dict)
755 {
756  char *param, *next_param, *cstr, *back;
757 
758  if (!set_cookie[0])
759  return 0;
760 
761  if (!(cstr = av_strdup(set_cookie)))
762  return AVERROR(EINVAL);
763 
764  // strip any trailing whitespace
765  back = &cstr[strlen(cstr)-1];
766  while (strchr(WHITESPACES, *back)) {
767  *back='\0';
768  if (back == cstr)
769  break;
770  back--;
771  }
772 
773  next_param = cstr;
774  while ((param = av_strtok(next_param, ";", &next_param))) {
775  char *name, *value;
776  param += strspn(param, WHITESPACES);
777  if ((name = av_strtok(param, "=", &value))) {
778  if (av_dict_set(dict, name, value, 0) < 0) {
779  av_free(cstr);
780  return -1;
781  }
782  }
783  }
784 
785  av_free(cstr);
786  return 0;
787 }
788 
789 static int parse_cookie(HTTPContext *s, const char *p, AVDictionary **cookies)
790 {
791  AVDictionary *new_params = NULL;
792  AVDictionaryEntry *e, *cookie_entry;
793  char *eql, *name;
794 
795  // ensure the cookie is parsable
796  if (parse_set_cookie(p, &new_params))
797  return -1;
798 
799  // if there is no cookie value there is nothing to parse
800  cookie_entry = av_dict_get(new_params, "", NULL, AV_DICT_IGNORE_SUFFIX);
801  if (!cookie_entry || !cookie_entry->value) {
802  av_dict_free(&new_params);
803  return -1;
804  }
805 
806  // ensure the cookie is not expired or older than an existing value
807  if ((e = av_dict_get(new_params, "expires", NULL, 0)) && e->value) {
808  struct tm new_tm = {0};
809  if (!parse_set_cookie_expiry_time(e->value, &new_tm)) {
810  AVDictionaryEntry *e2;
811 
812  // if the cookie has already expired ignore it
813  if (av_timegm(&new_tm) < av_gettime() / 1000000) {
814  av_dict_free(&new_params);
815  return 0;
816  }
817 
818  // only replace an older cookie with the same name
819  e2 = av_dict_get(*cookies, cookie_entry->key, NULL, 0);
820  if (e2 && e2->value) {
821  AVDictionary *old_params = NULL;
822  if (!parse_set_cookie(p, &old_params)) {
823  e2 = av_dict_get(old_params, "expires", NULL, 0);
824  if (e2 && e2->value) {
825  struct tm old_tm = {0};
826  if (!parse_set_cookie_expiry_time(e->value, &old_tm)) {
827  if (av_timegm(&new_tm) < av_timegm(&old_tm)) {
828  av_dict_free(&new_params);
829  av_dict_free(&old_params);
830  return -1;
831  }
832  }
833  }
834  }
835  av_dict_free(&old_params);
836  }
837  }
838  }
839  av_dict_free(&new_params);
840 
841  // duplicate the cookie name (dict will dupe the value)
842  if (!(eql = strchr(p, '='))) return AVERROR(EINVAL);
843  if (!(name = av_strndup(p, eql - p))) return AVERROR(ENOMEM);
844 
845  // add the cookie to the dictionary
846  av_dict_set(cookies, name, eql, AV_DICT_DONT_STRDUP_KEY);
847 
848  return 0;
849 }
850 
851 static int cookie_string(AVDictionary *dict, char **cookies)
852 {
853  AVDictionaryEntry *e = NULL;
854  int len = 1;
855 
856  // determine how much memory is needed for the cookies string
857  while (e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))
858  len += strlen(e->key) + strlen(e->value) + 1;
859 
860  // reallocate the cookies
861  e = NULL;
862  if (*cookies) av_free(*cookies);
863  *cookies = av_malloc(len);
864  if (!*cookies) return AVERROR(ENOMEM);
865  *cookies[0] = '\0';
866 
867  // write out the cookies
868  while (e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))
869  av_strlcatf(*cookies, len, "%s%s\n", e->key, e->value);
870 
871  return 0;
872 }
873 
874 static int process_line(URLContext *h, char *line, int line_count,
875  int *new_location)
876 {
877  HTTPContext *s = h->priv_data;
878  const char *auto_method = h->flags & AVIO_FLAG_READ ? "POST" : "GET";
879  char *tag, *p, *end, *method, *resource, *version;
880  int ret;
881 
882  /* end of header */
883  if (line[0] == '\0') {
884  s->end_header = 1;
885  return 0;
886  }
887 
888  p = line;
889  if (line_count == 0) {
890  if (s->is_connected_server) {
891  // HTTP method
892  method = p;
893  while (*p && !av_isspace(*p))
894  p++;
895  *(p++) = '\0';
896  av_log(h, AV_LOG_TRACE, "Received method: %s\n", method);
897  if (s->method) {
898  if (av_strcasecmp(s->method, method)) {
899  av_log(h, AV_LOG_ERROR, "Received and expected HTTP method do not match. (%s expected, %s received)\n",
900  s->method, method);
901  return ff_http_averror(400, AVERROR(EIO));
902  }
903  } else {
904  // use autodetected HTTP method to expect
905  av_log(h, AV_LOG_TRACE, "Autodetected %s HTTP method\n", auto_method);
906  if (av_strcasecmp(auto_method, method)) {
907  av_log(h, AV_LOG_ERROR, "Received and autodetected HTTP method did not match "
908  "(%s autodetected %s received)\n", auto_method, method);
909  return ff_http_averror(400, AVERROR(EIO));
910  }
911  if (!(s->method = av_strdup(method)))
912  return AVERROR(ENOMEM);
913  }
914 
915  // HTTP resource
916  while (av_isspace(*p))
917  p++;
918  resource = p;
919  while (*p && !av_isspace(*p))
920  p++;
921  *(p++) = '\0';
922  av_log(h, AV_LOG_TRACE, "Requested resource: %s\n", resource);
923  if (!(s->resource = av_strdup(resource)))
924  return AVERROR(ENOMEM);
925 
926  // HTTP version
927  while (av_isspace(*p))
928  p++;
929  version = p;
930  while (*p && !av_isspace(*p))
931  p++;
932  *p = '\0';
933  if (av_strncasecmp(version, "HTTP/", 5)) {
934  av_log(h, AV_LOG_ERROR, "Malformed HTTP version string.\n");
935  return ff_http_averror(400, AVERROR(EIO));
936  }
937  av_log(h, AV_LOG_TRACE, "HTTP version string: %s\n", version);
938  } else {
939  if (av_strncasecmp(p, "HTTP/1.0", 8) == 0)
940  s->willclose = 1;
941  while (*p != '/' && *p != '\0')
942  p++;
943  while (*p == '/')
944  p++;
945  av_freep(&s->http_version);
946  s->http_version = av_strndup(p, 3);
947  while (!av_isspace(*p) && *p != '\0')
948  p++;
949  while (av_isspace(*p))
950  p++;
951  s->http_code = strtol(p, &end, 10);
952 
953  av_log(h, AV_LOG_TRACE, "http_code=%d\n", s->http_code);
954 
955  if ((ret = check_http_code(h, s->http_code, end)) < 0)
956  return ret;
957  }
958  } else {
959  while (*p != '\0' && *p != ':')
960  p++;
961  if (*p != ':')
962  return 1;
963 
964  *p = '\0';
965  tag = line;
966  p++;
967  while (av_isspace(*p))
968  p++;
969  if (!av_strcasecmp(tag, "Location")) {
970  if ((ret = parse_location(s, p)) < 0)
971  return ret;
972  *new_location = 1;
973  } else if (!av_strcasecmp(tag, "Content-Length") &&
974  s->filesize == UINT64_MAX) {
975  s->filesize = strtoull(p, NULL, 10);
976  } else if (!av_strcasecmp(tag, "Content-Range")) {
977  parse_content_range(h, p);
978  } else if (!av_strcasecmp(tag, "Accept-Ranges") &&
979  !strncmp(p, "bytes", 5) &&
980  s->seekable == -1) {
981  h->is_streamed = 0;
982  } else if (!av_strcasecmp(tag, "Transfer-Encoding") &&
983  !av_strncasecmp(p, "chunked", 7)) {
984  s->filesize = UINT64_MAX;
985  s->chunksize = 0;
986  } else if (!av_strcasecmp(tag, "WWW-Authenticate")) {
988  } else if (!av_strcasecmp(tag, "Authentication-Info")) {
990  } else if (!av_strcasecmp(tag, "Proxy-Authenticate")) {
992  } else if (!av_strcasecmp(tag, "Connection")) {
993  if (!strcmp(p, "close"))
994  s->willclose = 1;
995  } else if (!av_strcasecmp(tag, "Server")) {
996  if (!av_strcasecmp(p, "AkamaiGHost")) {
997  s->is_akamai = 1;
998  } else if (!av_strncasecmp(p, "MediaGateway", 12)) {
999  s->is_mediagateway = 1;
1000  }
1001  } else if (!av_strcasecmp(tag, "Content-Type")) {
1002  av_free(s->mime_type);
1003  s->mime_type = av_strdup(p);
1004  } else if (!av_strcasecmp(tag, "Set-Cookie")) {
1005  if (parse_cookie(s, p, &s->cookie_dict))
1006  av_log(h, AV_LOG_WARNING, "Unable to parse '%s'\n", p);
1007  } else if (!av_strcasecmp(tag, "Icy-MetaInt")) {
1008  s->icy_metaint = strtoull(p, NULL, 10);
1009  } else if (!av_strncasecmp(tag, "Icy-", 4)) {
1010  if ((ret = parse_icy(s, tag, p)) < 0)
1011  return ret;
1012  } else if (!av_strcasecmp(tag, "Content-Encoding")) {
1013  if ((ret = parse_content_encoding(h, p)) < 0)
1014  return ret;
1015  }
1016  }
1017  return 1;
1018 }
1019 
1020 /**
1021  * Create a string containing cookie values for use as a HTTP cookie header
1022  * field value for a particular path and domain from the cookie values stored in
1023  * the HTTP protocol context. The cookie string is stored in *cookies, and may
1024  * be NULL if there are no valid cookies.
1025  *
1026  * @return a negative value if an error condition occurred, 0 otherwise
1027  */
1028 static int get_cookies(HTTPContext *s, char **cookies, const char *path,
1029  const char *domain)
1030 {
1031  // cookie strings will look like Set-Cookie header field values. Multiple
1032  // Set-Cookie fields will result in multiple values delimited by a newline
1033  int ret = 0;
1034  char *cookie, *set_cookies, *next;
1035 
1036  // destroy any cookies in the dictionary.
1038 
1039  if (!s->cookies)
1040  return 0;
1041 
1042  next = set_cookies = av_strdup(s->cookies);
1043  if (!next)
1044  return AVERROR(ENOMEM);
1045 
1046  *cookies = NULL;
1047  while ((cookie = av_strtok(next, "\n", &next)) && !ret) {
1048  AVDictionary *cookie_params = NULL;
1049  AVDictionaryEntry *cookie_entry, *e;
1050 
1051  // store the cookie in a dict in case it is updated in the response
1052  if (parse_cookie(s, cookie, &s->cookie_dict))
1053  av_log(s, AV_LOG_WARNING, "Unable to parse '%s'\n", cookie);
1054 
1055  // continue on to the next cookie if this one cannot be parsed
1056  if (parse_set_cookie(cookie, &cookie_params))
1057  goto skip_cookie;
1058 
1059  // if the cookie has no value, skip it
1060  cookie_entry = av_dict_get(cookie_params, "", NULL, AV_DICT_IGNORE_SUFFIX);
1061  if (!cookie_entry || !cookie_entry->value)
1062  goto skip_cookie;
1063 
1064  // if the cookie has expired, don't add it
1065  if ((e = av_dict_get(cookie_params, "expires", NULL, 0)) && e->value) {
1066  struct tm tm_buf = {0};
1067  if (!parse_set_cookie_expiry_time(e->value, &tm_buf)) {
1068  if (av_timegm(&tm_buf) < av_gettime() / 1000000)
1069  goto skip_cookie;
1070  }
1071  }
1072 
1073  // if no domain in the cookie assume it appied to this request
1074  if ((e = av_dict_get(cookie_params, "domain", NULL, 0)) && e->value) {
1075  // find the offset comparison is on the min domain (b.com, not a.b.com)
1076  int domain_offset = strlen(domain) - strlen(e->value);
1077  if (domain_offset < 0)
1078  goto skip_cookie;
1079 
1080  // match the cookie domain
1081  if (av_strcasecmp(&domain[domain_offset], e->value))
1082  goto skip_cookie;
1083  }
1084 
1085  // ensure this cookie matches the path
1086  e = av_dict_get(cookie_params, "path", NULL, 0);
1087  if (!e || av_strncasecmp(path, e->value, strlen(e->value)))
1088  goto skip_cookie;
1089 
1090  // cookie parameters match, so copy the value
1091  if (!*cookies) {
1092  *cookies = av_asprintf("%s=%s", cookie_entry->key, cookie_entry->value);
1093  } else {
1094  char *tmp = *cookies;
1095  *cookies = av_asprintf("%s; %s=%s", tmp, cookie_entry->key, cookie_entry->value);
1096  av_free(tmp);
1097  }
1098  if (!*cookies)
1099  ret = AVERROR(ENOMEM);
1100 
1101  skip_cookie:
1102  av_dict_free(&cookie_params);
1103  }
1104 
1105  av_free(set_cookies);
1106 
1107  return ret;
1108 }
1109 
1110 static inline int has_header(const char *str, const char *header)
1111 {
1112  /* header + 2 to skip over CRLF prefix. (make sure you have one!) */
1113  if (!str)
1114  return 0;
1115  return av_stristart(str, header + 2, NULL) || av_stristr(str, header);
1116 }
1117 
1118 static int http_read_header(URLContext *h, int *new_location)
1119 {
1120  HTTPContext *s = h->priv_data;
1121  char line[MAX_URL_SIZE];
1122  int err = 0;
1123 
1124  s->chunksize = UINT64_MAX;
1125 
1126  for (;;) {
1127  if ((err = http_get_line(s, line, sizeof(line))) < 0)
1128  return err;
1129 
1130  av_log(h, AV_LOG_TRACE, "header='%s'\n", line);
1131 
1132  err = process_line(h, line, s->line_count, new_location);
1133  if (err < 0)
1134  return err;
1135  if (err == 0)
1136  break;
1137  s->line_count++;
1138  }
1139 
1140  if (s->seekable == -1 && s->is_mediagateway && s->filesize == 2000000000)
1141  h->is_streamed = 1; /* we can in fact _not_ seek */
1142 
1143  // add any new cookies into the existing cookie string
1146 
1147  return err;
1148 }
1149 
1150 static int http_connect(URLContext *h, const char *path, const char *local_path,
1151  const char *hoststr, const char *auth,
1152  const char *proxyauth, int *new_location)
1153 {
1154  HTTPContext *s = h->priv_data;
1155  int post, err;
1156  char headers[HTTP_HEADERS_SIZE] = "";
1157  char *authstr = NULL, *proxyauthstr = NULL;
1158  uint64_t off = s->off;
1159  int len = 0;
1160  const char *method;
1161  int send_expect_100 = 0;
1162  int ret;
1163 
1164  /* send http header */
1165  post = h->flags & AVIO_FLAG_WRITE;
1166 
1167  if (s->post_data) {
1168  /* force POST method and disable chunked encoding when
1169  * custom HTTP post data is set */
1170  post = 1;
1171  s->chunked_post = 0;
1172  }
1173 
1174  if (s->method)
1175  method = s->method;
1176  else
1177  method = post ? "POST" : "GET";
1178 
1179  authstr = ff_http_auth_create_response(&s->auth_state, auth,
1180  local_path, method);
1181  proxyauthstr = ff_http_auth_create_response(&s->proxy_auth_state, proxyauth,
1182  local_path, method);
1183 
1184  if (post && !s->post_data) {
1185  if (s->send_expect_100 != -1) {
1186  send_expect_100 = s->send_expect_100;
1187  } else {
1188  send_expect_100 = 0;
1189  /* The user has supplied authentication but we don't know the auth type,
1190  * send Expect: 100-continue to get the 401 response including the
1191  * WWW-Authenticate header, or an 100 continue if no auth actually
1192  * is needed. */
1193  if (auth && *auth &&
1195  s->http_code != 401)
1196  send_expect_100 = 1;
1197  }
1198  }
1199 
1200 #if FF_API_HTTP_USER_AGENT
1201  if (strcmp(s->user_agent_deprecated, DEFAULT_USER_AGENT)) {
1202  s->user_agent = av_strdup(s->user_agent_deprecated);
1203  }
1204 #endif
1205  /* set default headers if needed */
1206  if (!has_header(s->headers, "\r\nUser-Agent: "))
1207  len += av_strlcatf(headers + len, sizeof(headers) - len,
1208  "User-Agent: %s\r\n", s->user_agent);
1209  if (s->referer) {
1210  /* set default headers if needed */
1211  if (!has_header(s->headers, "\r\nReferer: "))
1212  len += av_strlcatf(headers + len, sizeof(headers) - len,
1213  "Referer: %s\r\n", s->referer);
1214  }
1215  if (!has_header(s->headers, "\r\nAccept: "))
1216  len += av_strlcpy(headers + len, "Accept: */*\r\n",
1217  sizeof(headers) - len);
1218  // Note: we send this on purpose even when s->off is 0 when we're probing,
1219  // since it allows us to detect more reliably if a (non-conforming)
1220  // server supports seeking by analysing the reply headers.
1221  if (!has_header(s->headers, "\r\nRange: ") && !post && (s->off > 0 || s->end_off || s->seekable == -1)) {
1222  len += av_strlcatf(headers + len, sizeof(headers) - len,
1223  "Range: bytes=%"PRIu64"-", s->off);
1224  if (s->end_off)
1225  len += av_strlcatf(headers + len, sizeof(headers) - len,
1226  "%"PRId64, s->end_off - 1);
1227  len += av_strlcpy(headers + len, "\r\n",
1228  sizeof(headers) - len);
1229  }
1230  if (send_expect_100 && !has_header(s->headers, "\r\nExpect: "))
1231  len += av_strlcatf(headers + len, sizeof(headers) - len,
1232  "Expect: 100-continue\r\n");
1233 
1234  if (!has_header(s->headers, "\r\nConnection: ")) {
1235  if (s->multiple_requests)
1236  len += av_strlcpy(headers + len, "Connection: keep-alive\r\n",
1237  sizeof(headers) - len);
1238  else
1239  len += av_strlcpy(headers + len, "Connection: close\r\n",
1240  sizeof(headers) - len);
1241  }
1242 
1243  if (!has_header(s->headers, "\r\nHost: "))
1244  len += av_strlcatf(headers + len, sizeof(headers) - len,
1245  "Host: %s\r\n", hoststr);
1246  if (!has_header(s->headers, "\r\nContent-Length: ") && s->post_data)
1247  len += av_strlcatf(headers + len, sizeof(headers) - len,
1248  "Content-Length: %d\r\n", s->post_datalen);
1249 
1250  if (!has_header(s->headers, "\r\nContent-Type: ") && s->content_type)
1251  len += av_strlcatf(headers + len, sizeof(headers) - len,
1252  "Content-Type: %s\r\n", s->content_type);
1253  if (!has_header(s->headers, "\r\nCookie: ") && s->cookies) {
1254  char *cookies = NULL;
1255  if (!get_cookies(s, &cookies, path, hoststr) && cookies) {
1256  len += av_strlcatf(headers + len, sizeof(headers) - len,
1257  "Cookie: %s\r\n", cookies);
1258  av_free(cookies);
1259  }
1260  }
1261  if (!has_header(s->headers, "\r\nIcy-MetaData: ") && s->icy)
1262  len += av_strlcatf(headers + len, sizeof(headers) - len,
1263  "Icy-MetaData: %d\r\n", 1);
1264 
1265  /* now add in custom headers */
1266  if (s->headers)
1267  av_strlcpy(headers + len, s->headers, sizeof(headers) - len);
1268 
1269  ret = snprintf(s->buffer, sizeof(s->buffer),
1270  "%s %s HTTP/1.1\r\n"
1271  "%s"
1272  "%s"
1273  "%s"
1274  "%s%s"
1275  "\r\n",
1276  method,
1277  path,
1278  post && s->chunked_post ? "Transfer-Encoding: chunked\r\n" : "",
1279  headers,
1280  authstr ? authstr : "",
1281  proxyauthstr ? "Proxy-" : "", proxyauthstr ? proxyauthstr : "");
1282 
1283  av_log(h, AV_LOG_DEBUG, "request: %s\n", s->buffer);
1284 
1285  if (strlen(headers) + 1 == sizeof(headers) ||
1286  ret >= sizeof(s->buffer)) {
1287  av_log(h, AV_LOG_ERROR, "overlong headers\n");
1288  err = AVERROR(EINVAL);
1289  goto done;
1290  }
1291 
1292 
1293  if ((err = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0)
1294  goto done;
1295 
1296  if (s->post_data)
1297  if ((err = ffurl_write(s->hd, s->post_data, s->post_datalen)) < 0)
1298  goto done;
1299 
1300  /* init input buffer */
1301  s->buf_ptr = s->buffer;
1302  s->buf_end = s->buffer;
1303  s->line_count = 0;
1304  s->off = 0;
1305  s->icy_data_read = 0;
1306  s->filesize = UINT64_MAX;
1307  s->willclose = 0;
1308  s->end_chunked_post = 0;
1309  s->end_header = 0;
1310 #if CONFIG_ZLIB
1311  s->compressed = 0;
1312 #endif
1313  if (post && !s->post_data && !send_expect_100) {
1314  /* Pretend that it did work. We didn't read any header yet, since
1315  * we've still to send the POST data, but the code calling this
1316  * function will check http_code after we return. */
1317  s->http_code = 200;
1318  err = 0;
1319  goto done;
1320  }
1321 
1322  /* wait for header */
1323  err = http_read_header(h, new_location);
1324  if (err < 0)
1325  goto done;
1326 
1327  if (*new_location)
1328  s->off = off;
1329 
1330  err = (off == s->off) ? 0 : -1;
1331 done:
1332  av_freep(&authstr);
1333  av_freep(&proxyauthstr);
1334  return err;
1335 }
1336 
1337 static int http_buf_read(URLContext *h, uint8_t *buf, int size)
1338 {
1339  HTTPContext *s = h->priv_data;
1340  int len;
1341 
1342  if (s->chunksize != UINT64_MAX) {
1343  if (s->chunkend) {
1344  return AVERROR_EOF;
1345  }
1346  if (!s->chunksize) {
1347  char line[32];
1348  int err;
1349 
1350  do {
1351  if ((err = http_get_line(s, line, sizeof(line))) < 0)
1352  return err;
1353  } while (!*line); /* skip CR LF from last chunk */
1354 
1355  s->chunksize = strtoull(line, NULL, 16);
1356 
1357  av_log(h, AV_LOG_TRACE,
1358  "Chunked encoding data size: %"PRIu64"\n",
1359  s->chunksize);
1360 
1361  if (!s->chunksize && s->multiple_requests) {
1362  http_get_line(s, line, sizeof(line)); // read empty chunk
1363  s->chunkend = 1;
1364  return 0;
1365  }
1366  else if (!s->chunksize) {
1367  av_log(h, AV_LOG_DEBUG, "Last chunk received, closing conn\n");
1368  ffurl_closep(&s->hd);
1369  return 0;
1370  }
1371  else if (s->chunksize == UINT64_MAX) {
1372  av_log(h, AV_LOG_ERROR, "Invalid chunk size %"PRIu64"\n",
1373  s->chunksize);
1374  return AVERROR(EINVAL);
1375  }
1376  }
1377  size = FFMIN(size, s->chunksize);
1378  }
1379 
1380  /* read bytes from input buffer first */
1381  len = s->buf_end - s->buf_ptr;
1382  if (len > 0) {
1383  if (len > size)
1384  len = size;
1385  memcpy(buf, s->buf_ptr, len);
1386  s->buf_ptr += len;
1387  } else {
1388  uint64_t target_end = s->end_off ? s->end_off : s->filesize;
1389  if ((!s->willclose || s->chunksize == UINT64_MAX) && s->off >= target_end)
1390  return AVERROR_EOF;
1391  len = ffurl_read(s->hd, buf, size);
1392  if (!len && (!s->willclose || s->chunksize == UINT64_MAX) && s->off < target_end) {
1393  av_log(h, AV_LOG_ERROR,
1394  "Stream ends prematurely at %"PRIu64", should be %"PRIu64"\n",
1395  s->off, target_end
1396  );
1397  return AVERROR(EIO);
1398  }
1399  }
1400  if (len > 0) {
1401  s->off += len;
1402  if (s->chunksize > 0 && s->chunksize != UINT64_MAX) {
1403  av_assert0(s->chunksize >= len);
1404  s->chunksize -= len;
1405  }
1406  }
1407  return len;
1408 }
1409 
1410 #if CONFIG_ZLIB
1411 #define DECOMPRESS_BUF_SIZE (256 * 1024)
1412 static int http_buf_read_compressed(URLContext *h, uint8_t *buf, int size)
1413 {
1414  HTTPContext *s = h->priv_data;
1415  int ret;
1416 
1417  if (!s->inflate_buffer) {
1418  s->inflate_buffer = av_malloc(DECOMPRESS_BUF_SIZE);
1419  if (!s->inflate_buffer)
1420  return AVERROR(ENOMEM);
1421  }
1422 
1423  if (s->inflate_stream.avail_in == 0) {
1424  int read = http_buf_read(h, s->inflate_buffer, DECOMPRESS_BUF_SIZE);
1425  if (read <= 0)
1426  return read;
1427  s->inflate_stream.next_in = s->inflate_buffer;
1428  s->inflate_stream.avail_in = read;
1429  }
1430 
1431  s->inflate_stream.avail_out = size;
1432  s->inflate_stream.next_out = buf;
1433 
1434  ret = inflate(&s->inflate_stream, Z_SYNC_FLUSH);
1435  if (ret != Z_OK && ret != Z_STREAM_END)
1436  av_log(h, AV_LOG_WARNING, "inflate return value: %d, %s\n",
1437  ret, s->inflate_stream.msg);
1438 
1439  return size - s->inflate_stream.avail_out;
1440 }
1441 #endif /* CONFIG_ZLIB */
1442 
1443 static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect);
1444 
1446 {
1447  HTTPContext *s = h->priv_data;
1448  int err, new_location, read_ret;
1449  int64_t seek_ret;
1450  int reconnect_delay = 0;
1451 
1452  if (!s->hd)
1453  return AVERROR_EOF;
1454 
1455  if (s->end_chunked_post && !s->end_header) {
1456  err = http_read_header(h, &new_location);
1457  if (err < 0)
1458  return err;
1459  }
1460 
1461 #if CONFIG_ZLIB
1462  if (s->compressed)
1463  return http_buf_read_compressed(h, buf, size);
1464 #endif /* CONFIG_ZLIB */
1465  read_ret = http_buf_read(h, buf, size);
1466  while (read_ret < 0) {
1467  uint64_t target = h->is_streamed ? 0 : s->off;
1468 
1469  if (read_ret == AVERROR_EXIT)
1470  break;
1471 
1472  if (h->is_streamed && !s->reconnect_streamed)
1473  break;
1474 
1475  if (!(s->reconnect && s->filesize > 0 && s->off < s->filesize) &&
1476  !(s->reconnect_at_eof && read_ret == AVERROR_EOF))
1477  break;
1478 
1479  if (reconnect_delay > s->reconnect_delay_max)
1480  return AVERROR(EIO);
1481 
1482  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));
1483  err = ff_network_sleep_interruptible(1000U*1000*reconnect_delay, &h->interrupt_callback);
1484  if (err != AVERROR(ETIMEDOUT))
1485  return err;
1486  reconnect_delay = 1 + 2*reconnect_delay;
1487  seek_ret = http_seek_internal(h, target, SEEK_SET, 1);
1488  if (seek_ret >= 0 && seek_ret != target) {
1489  av_log(h, AV_LOG_ERROR, "Failed to reconnect at %"PRIu64".\n", target);
1490  return read_ret;
1491  }
1492 
1493  read_ret = http_buf_read(h, buf, size);
1494  }
1495 
1496  return read_ret;
1497 }
1498 
1499 // Like http_read_stream(), but no short reads.
1500 // Assumes partial reads are an error.
1502 {
1503  int pos = 0;
1504  while (pos < size) {
1505  int len = http_read_stream(h, buf + pos, size - pos);
1506  if (len < 0)
1507  return len;
1508  pos += len;
1509  }
1510  return pos;
1511 }
1512 
1513 static void update_metadata(URLContext *h, char *data)
1514 {
1515  char *key;
1516  char *val;
1517  char *end;
1518  char *next = data;
1519  HTTPContext *s = h->priv_data;
1520 
1521  while (*next) {
1522  key = next;
1523  val = strstr(key, "='");
1524  if (!val)
1525  break;
1526  end = strstr(val, "';");
1527  if (!end)
1528  break;
1529 
1530  *val = '\0';
1531  *end = '\0';
1532  val += 2;
1533 
1534  av_dict_set(&s->metadata, key, val, 0);
1535  av_log(h, AV_LOG_VERBOSE, "Metadata update for %s: %s\n", key, val);
1536 
1537  next = end + 2;
1538  }
1539 }
1540 
1541 static int store_icy(URLContext *h, int size)
1542 {
1543  HTTPContext *s = h->priv_data;
1544  /* until next metadata packet */
1545  uint64_t remaining;
1546 
1547  if (s->icy_metaint < s->icy_data_read)
1548  return AVERROR_INVALIDDATA;
1549  remaining = s->icy_metaint - s->icy_data_read;
1550 
1551  if (!remaining) {
1552  /* The metadata packet is variable sized. It has a 1 byte header
1553  * which sets the length of the packet (divided by 16). If it's 0,
1554  * the metadata doesn't change. After the packet, icy_metaint bytes
1555  * of normal data follows. */
1556  uint8_t ch;
1557  int len = http_read_stream_all(h, &ch, 1);
1558  if (len < 0)
1559  return len;
1560  if (ch > 0) {
1561  char data[255 * 16 + 1];
1562  int ret;
1563  len = ch * 16;
1564  ret = http_read_stream_all(h, data, len);
1565  if (ret < 0)
1566  return ret;
1567  data[len + 1] = 0;
1568  if ((ret = av_opt_set(s, "icy_metadata_packet", data, 0)) < 0)
1569  return ret;
1570  update_metadata(h, data);
1571  }
1572  s->icy_data_read = 0;
1573  remaining = s->icy_metaint;
1574  }
1575 
1576  return FFMIN(size, remaining);
1577 }
1578 
1579 static int http_read(URLContext *h, uint8_t *buf, int size)
1580 {
1581  HTTPContext *s = h->priv_data;
1582 
1583  if (s->icy_metaint > 0) {
1584  size = store_icy(h, size);
1585  if (size < 0)
1586  return size;
1587  }
1588 
1589  size = http_read_stream(h, buf, size);
1590  if (size > 0)
1591  s->icy_data_read += size;
1592  return size;
1593 }
1594 
1595 /* used only when posting data */
1596 static int http_write(URLContext *h, const uint8_t *buf, int size)
1597 {
1598  char temp[11] = ""; /* 32-bit hex + CRLF + nul */
1599  int ret;
1600  char crlf[] = "\r\n";
1601  HTTPContext *s = h->priv_data;
1602 
1603  if (!s->chunked_post) {
1604  /* non-chunked data is sent without any special encoding */
1605  return ffurl_write(s->hd, buf, size);
1606  }
1607 
1608  /* silently ignore zero-size data since chunk encoding that would
1609  * signal EOF */
1610  if (size > 0) {
1611  /* upload data using chunked encoding */
1612  snprintf(temp, sizeof(temp), "%x\r\n", size);
1613 
1614  if ((ret = ffurl_write(s->hd, temp, strlen(temp))) < 0 ||
1615  (ret = ffurl_write(s->hd, buf, size)) < 0 ||
1616  (ret = ffurl_write(s->hd, crlf, sizeof(crlf) - 1)) < 0)
1617  return ret;
1618  }
1619  return size;
1620 }
1621 
1622 static int http_shutdown(URLContext *h, int flags)
1623 {
1624  int ret = 0;
1625  char footer[] = "0\r\n\r\n";
1626  HTTPContext *s = h->priv_data;
1627 
1628  /* signal end of chunked encoding if used */
1629  if (((flags & AVIO_FLAG_WRITE) && s->chunked_post) ||
1630  ((flags & AVIO_FLAG_READ) && s->chunked_post && s->listen)) {
1631  ret = ffurl_write(s->hd, footer, sizeof(footer) - 1);
1632  ret = ret > 0 ? 0 : ret;
1633  /* flush the receive buffer when it is write only mode */
1634  if (!(flags & AVIO_FLAG_READ)) {
1635  char buf[1024];
1636  int read_ret;
1637  s->hd->flags |= AVIO_FLAG_NONBLOCK;
1638  read_ret = ffurl_read(s->hd, buf, sizeof(buf));
1639  s->hd->flags &= ~AVIO_FLAG_NONBLOCK;
1640  if (read_ret < 0 && read_ret != AVERROR(EAGAIN)) {
1641  av_log(h, AV_LOG_ERROR, "URL read error: %s\n", av_err2str(read_ret));
1642  ret = read_ret;
1643  }
1644  }
1645  s->end_chunked_post = 1;
1646  }
1647 
1648  return ret;
1649 }
1650 
1651 static int http_close(URLContext *h)
1652 {
1653  int ret = 0;
1654  HTTPContext *s = h->priv_data;
1655 
1656 #if CONFIG_ZLIB
1657  inflateEnd(&s->inflate_stream);
1658  av_freep(&s->inflate_buffer);
1659 #endif /* CONFIG_ZLIB */
1660 
1661  if (s->hd && !s->end_chunked_post)
1662  /* Close the write direction by sending the end of chunked encoding. */
1663  ret = http_shutdown(h, h->flags);
1664 
1665  if (s->hd)
1666  ffurl_closep(&s->hd);
1668  return ret;
1669 }
1670 
1671 static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect)
1672 {
1673  HTTPContext *s = h->priv_data;
1674  URLContext *old_hd = s->hd;
1675  uint64_t old_off = s->off;
1676  uint8_t old_buf[BUFFER_SIZE];
1677  int old_buf_size, ret;
1678  AVDictionary *options = NULL;
1679 
1680  if (whence == AVSEEK_SIZE)
1681  return s->filesize;
1682  else if (!force_reconnect &&
1683  ((whence == SEEK_CUR && off == 0) ||
1684  (whence == SEEK_SET && off == s->off)))
1685  return s->off;
1686  else if ((s->filesize == UINT64_MAX && whence == SEEK_END))
1687  return AVERROR(ENOSYS);
1688 
1689  if (whence == SEEK_CUR)
1690  off += s->off;
1691  else if (whence == SEEK_END)
1692  off += s->filesize;
1693  else if (whence != SEEK_SET)
1694  return AVERROR(EINVAL);
1695  if (off < 0)
1696  return AVERROR(EINVAL);
1697  s->off = off;
1698 
1699  if (s->off && h->is_streamed)
1700  return AVERROR(ENOSYS);
1701 
1702  /* do not try to make a new connection if seeking past the end of the file */
1703  if (s->end_off || s->filesize != UINT64_MAX) {
1704  uint64_t end_pos = s->end_off ? s->end_off : s->filesize;
1705  if (s->off >= end_pos)
1706  return s->off;
1707  }
1708 
1709  /* we save the old context in case the seek fails */
1710  old_buf_size = s->buf_end - s->buf_ptr;
1711  memcpy(old_buf, s->buf_ptr, old_buf_size);
1712  s->hd = NULL;
1713 
1714  /* if it fails, continue on old connection */
1715  if ((ret = http_open_cnx(h, &options)) < 0) {
1716  av_dict_free(&options);
1717  memcpy(s->buffer, old_buf, old_buf_size);
1718  s->buf_ptr = s->buffer;
1719  s->buf_end = s->buffer + old_buf_size;
1720  s->hd = old_hd;
1721  s->off = old_off;
1722  return ret;
1723  }
1724  av_dict_free(&options);
1725  ffurl_close(old_hd);
1726  return off;
1727 }
1728 
1729 static int64_t http_seek(URLContext *h, int64_t off, int whence)
1730 {
1731  return http_seek_internal(h, off, whence, 0);
1732 }
1733 
1735 {
1736  HTTPContext *s = h->priv_data;
1737  return ffurl_get_file_handle(s->hd);
1738 }
1739 
1741 {
1742  HTTPContext *s = h->priv_data;
1743  return ffurl_get_short_seek(s->hd);
1744 }
1745 
1746 #define HTTP_CLASS(flavor) \
1747 static const AVClass flavor ## _context_class = { \
1748  .class_name = # flavor, \
1749  .item_name = av_default_item_name, \
1750  .option = options, \
1751  .version = LIBAVUTIL_VERSION_INT, \
1752 }
1753 
1754 #if CONFIG_HTTP_PROTOCOL
1755 HTTP_CLASS(http);
1756 
1757 const URLProtocol ff_http_protocol = {
1758  .name = "http",
1759  .url_open2 = http_open,
1760  .url_accept = http_accept,
1761  .url_handshake = http_handshake,
1762  .url_read = http_read,
1763  .url_write = http_write,
1764  .url_seek = http_seek,
1765  .url_close = http_close,
1766  .url_get_file_handle = http_get_file_handle,
1767  .url_get_short_seek = http_get_short_seek,
1768  .url_shutdown = http_shutdown,
1769  .priv_data_size = sizeof(HTTPContext),
1770  .priv_data_class = &http_context_class,
1772  .default_whitelist = "http,https,tls,rtp,tcp,udp,crypto,httpproxy"
1773 };
1774 #endif /* CONFIG_HTTP_PROTOCOL */
1775 
1776 #if CONFIG_HTTPS_PROTOCOL
1777 HTTP_CLASS(https);
1778 
1780  .name = "https",
1781  .url_open2 = http_open,
1782  .url_read = http_read,
1783  .url_write = http_write,
1784  .url_seek = http_seek,
1785  .url_close = http_close,
1786  .url_get_file_handle = http_get_file_handle,
1787  .url_get_short_seek = http_get_short_seek,
1788  .url_shutdown = http_shutdown,
1789  .priv_data_size = sizeof(HTTPContext),
1790  .priv_data_class = &https_context_class,
1792  .default_whitelist = "http,https,tls,rtp,tcp,udp,crypto,httpproxy"
1793 };
1794 #endif /* CONFIG_HTTPS_PROTOCOL */
1795 
1796 #if CONFIG_HTTPPROXY_PROTOCOL
1797 static int http_proxy_close(URLContext *h)
1798 {
1799  HTTPContext *s = h->priv_data;
1800  if (s->hd)
1801  ffurl_closep(&s->hd);
1802  return 0;
1803 }
1804 
1805 static int http_proxy_open(URLContext *h, const char *uri, int flags)
1806 {
1807  HTTPContext *s = h->priv_data;
1808  char hostname[1024], hoststr[1024];
1809  char auth[1024], pathbuf[1024], *path;
1810  char lower_url[100];
1811  int port, ret = 0, attempts = 0;
1812  HTTPAuthType cur_auth_type;
1813  char *authstr;
1814  int new_loc;
1815 
1816  if( s->seekable == 1 )
1817  h->is_streamed = 0;
1818  else
1819  h->is_streamed = 1;
1820 
1821  av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
1822  pathbuf, sizeof(pathbuf), uri);
1823  ff_url_join(hoststr, sizeof(hoststr), NULL, NULL, hostname, port, NULL);
1824  path = pathbuf;
1825  if (*path == '/')
1826  path++;
1827 
1828  ff_url_join(lower_url, sizeof(lower_url), "tcp", NULL, hostname, port,
1829  NULL);
1830 redo:
1831  ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
1832  &h->interrupt_callback, NULL,
1834  if (ret < 0)
1835  return ret;
1836 
1837  authstr = ff_http_auth_create_response(&s->proxy_auth_state, auth,
1838  path, "CONNECT");
1839  snprintf(s->buffer, sizeof(s->buffer),
1840  "CONNECT %s HTTP/1.1\r\n"
1841  "Host: %s\r\n"
1842  "Connection: close\r\n"
1843  "%s%s"
1844  "\r\n",
1845  path,
1846  hoststr,
1847  authstr ? "Proxy-" : "", authstr ? authstr : "");
1848  av_freep(&authstr);
1849 
1850  if ((ret = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0)
1851  goto fail;
1852 
1853  s->buf_ptr = s->buffer;
1854  s->buf_end = s->buffer;
1855  s->line_count = 0;
1856  s->filesize = UINT64_MAX;
1857  cur_auth_type = s->proxy_auth_state.auth_type;
1858 
1859  /* Note: This uses buffering, potentially reading more than the
1860  * HTTP header. If tunneling a protocol where the server starts
1861  * the conversation, we might buffer part of that here, too.
1862  * Reading that requires using the proper ffurl_read() function
1863  * on this URLContext, not using the fd directly (as the tls
1864  * protocol does). This shouldn't be an issue for tls though,
1865  * since the client starts the conversation there, so there
1866  * is no extra data that we might buffer up here.
1867  */
1868  ret = http_read_header(h, &new_loc);
1869  if (ret < 0)
1870  goto fail;
1871 
1872  attempts++;
1873  if (s->http_code == 407 &&
1874  (cur_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
1875  s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && attempts < 2) {
1876  ffurl_closep(&s->hd);
1877  goto redo;
1878  }
1879 
1880  if (s->http_code < 400)
1881  return 0;
1882  ret = ff_http_averror(s->http_code, AVERROR(EIO));
1883 
1884 fail:
1885  http_proxy_close(h);
1886  return ret;
1887 }
1888 
1889 static int http_proxy_write(URLContext *h, const uint8_t *buf, int size)
1890 {
1891  HTTPContext *s = h->priv_data;
1892  return ffurl_write(s->hd, buf, size);
1893 }
1894 
1896  .name = "httpproxy",
1897  .url_open = http_proxy_open,
1898  .url_read = http_buf_read,
1899  .url_write = http_proxy_write,
1900  .url_close = http_proxy_close,
1901  .url_get_file_handle = http_get_file_handle,
1902  .priv_data_size = sizeof(HTTPContext),
1903  .flags = URL_PROTOCOL_FLAG_NETWORK,
1904 };
1905 #endif /* CONFIG_HTTPPROXY_PROTOCOL */
const char * name
Definition: avisynth_c.h:867
static int http_get_line(HTTPContext *s, char *line, int line_size)
Definition: http.c:605
time_t av_timegm(struct tm *tm)
Convert the decomposed UTC time in tm to a time_t value.
Definition: parseutils.c:568
void av_url_split(char *proto, int proto_size, char *authorization, int authorization_size, char *hostname, int hostname_size, int *port_ptr, char *path, int path_size, const char *url)
Split a URL string into components.
Definition: utils.c:4732
static void update_metadata(URLContext *h, char *data)
Definition: http.c:1513
static void parse_content_range(URLContext *h, const char *p)
Definition: http.c:658
AVDictionary * metadata
Definition: http.c:109
#define NULL
Definition: coverity.c:32
static int http_connect(URLContext *h, const char *path, const char *local_path, const char *hoststr, const char *auth, const char *proxyauth, int *new_location)
Definition: http.c:1150
const char const char void * val
Definition: avisynth_c.h:863
void ff_make_absolute_url(char *buf, int size, const char *base, const char *rel)
Convert a relative url into an absolute url, given a base url.
Definition: url.c:80
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
int size
int ffurl_open_whitelist(URLContext **puc, const char *filename, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options, const char *whitelist, const char *blacklist, URLContext *parent)
Create an URLContext for accessing to the resource indicated by url, and open it. ...
Definition: avio.c:307
#define URL_PROTOCOL_FLAG_NETWORK
Definition: url.h:34
uint8_t * post_data
Definition: http.c:95
AVOption.
Definition: opt.h:246
#define AV_OPT_FLAG_EXPORT
The option is intended for exporting values to the caller.
Definition: opt.h:284
#define AV_OPT_FLAG_DEPRECATED
set if option is deprecated, users should refer to AVOption.help text for more information ...
Definition: opt.h:292
HTTPAuthType
Authentication types, ordered from weakest to strongest.
Definition: httpauth.h:28
#define BUFFER_SIZE
Definition: http.c:48
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
static int http_close(URLContext *h)
Definition: http.c:1651
else temp
Definition: vf_mcdeint.c:256
int ffurl_write(URLContext *h, const unsigned char *buf, int size)
Write size bytes from buf to the resource accessed by h.
Definition: avio.c:421
char * av_stristr(const char *s1, const char *s2)
Locate the first case-independent occurrence in the string haystack of the string needle...
Definition: avstring.c:56
int is_streamed
true if streamed (no seek possible), default = false
Definition: url.h:45
AVIOInterruptCB interrupt_callback
Definition: url.h:47
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(const uint8_t *) pi - 0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(const int16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(const int16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(const int32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(const int32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(const int64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64, *(const int64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(const float *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(const double *) pi *(INT64_C(1)<< 63))) #define FMT_PAIR_FUNC(out, in) static conv_func_type *const fmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={ FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64), };static void cpy1(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, len);} static void cpy2(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 2 *len);} static void cpy4(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 4 *len);} static void cpy8(uint8_t **dst, const uint8_t **src, int len){ memcpy(*dst, *src, 8 *len);} AudioConvert *swri_audio_convert_alloc(enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, const int *ch_map, int flags) { AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) return NULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) return NULL;if(channels==1){ in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);} ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map) { switch(av_get_bytes_per_sample(in_fmt)){ case 1:ctx->simd_f=cpy1;break;case 2:ctx->simd_f=cpy2;break;case 4:ctx->simd_f=cpy4;break;case 8:ctx->simd_f=cpy8;break;} } if(HAVE_X86ASM &&HAVE_MMX) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);return ctx;} void swri_audio_convert_free(AudioConvert **ctx) { av_freep(ctx);} int swri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, int len) { int ch;int off=0;const int os=(out->planar ? 1 :out->ch_count) *out->bps;unsigned misaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask) { int planes=in->planar ? in->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;} if(ctx->out_simd_align_mask) { int planes=out->planar ? out->ch_count :1;unsigned m=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;} if(ctx->simd_f &&!ctx->ch_map &&!misaligned){ off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){ if(out->planar==in->planar){ int planes=out->planar ? out->ch_count :1;for(ch=0;ch< planes;ch++){ ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
HTTPAuthState proxy_auth_state
Definition: http.c:73
Definition: http.c:58
#define AVIO_FLAG_READ
read-only
Definition: avio.h:654
char * icy_metadata_headers
Definition: http.c:107
static av_const int av_isspace(int c)
Locale-independent conversion of ASCII isspace.
Definition: avstring.h:222
const URLProtocol ff_http_protocol
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:655
int av_strncasecmp(const char *a, const char *b, size_t n)
Locale-independent case-insensitive compare.
Definition: avstring.c:223
uint64_t icy_metaint
Definition: http.c:106
#define AVERROR_HTTP_NOT_FOUND
Definition: error.h:79
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
int flags
Definition: url.h:43
static int http_listen(URLContext *h, const char *uri, int flags, AVDictionary **options)
Definition: http.c:492
char * content_type
Definition: http.c:83
const char * key
uint64_t filesize
Definition: http.c:70
int version
Definition: avisynth_c.h:858
static int http_getc(HTTPContext *s)
Definition: http.c:588
HTTP Authentication state structure.
Definition: httpauth.h:55
#define src
Definition: vp8dsp.c:254
int auth_type
The currently chosen auth type.
Definition: httpauth.h:59
#define WHITESPACES
Definition: http.c:53
int is_connected_server
Definition: http.c:128
#define AV_DICT_DONT_STRDUP_KEY
Take ownership of a key that&#39;s been allocated with av_malloc() or another memory allocation function...
Definition: dict.h:73
#define HTTP_SINGLE
Definition: http.c:50
#define MAX_URL_SIZE
Definition: internal.h:30
static int parse_cookie(HTTPContext *s, const char *p, AVDictionary **cookies)
Definition: http.c:789
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int end_chunked_post
Definition: http.c:90
int av_stristart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str independent of case.
Definition: avstring.c:45
static int http_get_file_handle(URLContext *h)
Definition: http.c:1734
static int http_buf_read(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1337
uint8_t
#define av_malloc(s)
int post_datalen
Definition: http.c:96
AVOptions.
int ff_http_averror(int status_code, int default_averror)
Definition: http.c:359
miscellaneous OS support macros and functions.
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:202
static int http_read_header(URLContext *h, int *new_location)
Definition: http.c:1118
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
#define HTTP_HEADERS_SIZE
Definition: http.h:27
int is_akamai
Definition: http.c:97
static int http_open_cnx(URLContext *h, AVDictionary **options)
Definition: http.c:252
char * av_small_strptime(const char *p, const char *fmt, struct tm *dt)
Simplified version of strptime.
Definition: parseutils.c:489
const char data[16]
Definition: mxf.c:91
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
uint32_t tag
Definition: movenc.c:1496
#define DEFAULT_USER_AGENT
Definition: http.c:134
#define AVERROR_EOF
End of file.
Definition: error.h:55
void ff_http_init_auth_state(URLContext *dest, const URLContext *src)
Initialize the authentication state based on another HTTP URLContext.
Definition: http.c:180
uint64_t icy_data_read
Definition: http.c:104
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
HTTP 1.0 Basic auth from RFC 1945 (also in RFC 2617)
Definition: httpauth.h:30
static const uint8_t header[24]
Definition: sdr2.c:67
static int http_open_cnx_internal(URLContext *h, AVDictionary **options)
Definition: http.c:190
int line_count
Definition: http.c:65
#define av_log(a,...)
unsigned char * buf_end
Definition: http.c:64
static void body(uint32_t ABCD[4], const uint8_t *src, int nblocks)
Definition: md5.c:101
#define U(x)
Definition: vp56_arith.h:37
int is_multi_client
Definition: http.c:126
int chunked_post
Definition: http.c:88
static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect)
Definition: http.c:1671
int ffurl_alloc(URLContext **puc, const char *filename, int flags, const AVIOInterruptCB *int_cb)
Create a URLContext for accessing to the resource indicated by url, but do not initiate the connectio...
Definition: avio.c:290
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int reconnect_delay_max
Definition: http.c:122
#define E
Definition: http.c:133
const char * protocol_whitelist
Definition: url.h:49
#define AVERROR(e)
Definition: error.h:43
static int http_write(URLContext *h, const uint8_t *buf, int size)
Definition: http.c:1596
static const AVOption options[]
Definition: http.c:136
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
static int http_handshake(URLContext *c)
Definition: http.c:456
Definition: graph2dot.c:48
uint64_t off
Definition: http.c:70
simple assert() macros that are a bit more flexible than ISO C assert().
#define OFFSET(x)
Definition: http.c:131
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
Definition: avstring.c:83
#define fail()
Definition: checkasm.h:120
uint64_t chunksize
Definition: http.c:68
AVDictionary * chained_options
Definition: http.c:115
#define AVERROR_HTTP_SERVER_ERROR
Definition: error.h:81
char * referer
Definition: http.c:79
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:113
static int store_icy(URLContext *h, int size)
Definition: http.c:1541
char * headers
Definition: http.c:75
char * user_agent
Definition: http.c:78
#define AVERROR_HTTP_UNAUTHORIZED
Definition: error.h:77
char * icy_metadata_packet
Definition: http.c:108
int ffurl_get_short_seek(URLContext *h)
Return the current short seek threshold value for this URL.
Definition: avio.c:650
#define FFMIN(a, b)
Definition: common.h:96
static int http_get_short_seek(URLContext *h)
Definition: http.c:1740
const URLProtocol ff_httpproxy_protocol
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:213
int chunkend
Definition: http.c:69
int send_expect_100
Definition: http.c:117
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
int ff_network_sleep_interruptible(int64_t timeout, AVIOInterruptCB *int_cb)
Waits for up to &#39;timeout&#39; microseconds.
Definition: network.c:98
int willclose
Definition: http.c:86
int is_mediagateway
Definition: http.c:98
int ffurl_handshake(URLContext *c)
Perform one step of the protocol handshake to accept a new client.
Definition: avio.c:234
int reconnect
Definition: http.c:119
int ff_http_match_no_proxy(const char *no_proxy, const char *hostname)
Definition: network.c:551
#define s(width, name)
Definition: cbs_vp9.c:257
int ffurl_get_file_handle(URLContext *h)
Return the file descriptor associated with this URL.
Definition: avio.c:626
int ffurl_accept(URLContext *s, URLContext **c)
Accept an URLContext c on an URLContext s.
Definition: avio.c:226
#define AVERROR_EXIT
Immediate exit was requested; the called function should not be restarted.
Definition: error.h:56
AVDictionary * cookie_dict
Definition: http.c:101
static void error(const char *err)
int stale
Auth ok, but needs to be resent with a new nonce.
Definition: httpauth.h:71
offset must point to a pointer immediately followed by an int for the length
Definition: opt.h:229
int ffurl_closep(URLContext **hh)
Close the resource accessed by the URLContext h, and free the memory used by it.
Definition: avio.c:444
int64_t av_gettime(void)
Get the current time in microseconds.
Definition: time.c:39
int ff_url_join(char *str, int size, const char *proto, const char *authorization, const char *hostname, int port, const char *fmt,...)
Definition: url.c:36
int reconnect_streamed
Definition: http.c:121
static int http_read(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1579
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
int av_reallocp(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory through a pointer to a pointer.
Definition: mem.c:163
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
const char * protocol_blacklist
Definition: url.h:50
char * http_proxy
Definition: http.c:74
HandshakeState handshake_step
Definition: http.c:127
#define AVIO_FLAG_NONBLOCK
Use non-blocking mode.
Definition: avio.h:673
int seekable
Control seekability, 0 = disable, 1 = enable, -1 = probe.
Definition: http.c:87
#define MAX_EXPIRY
Definition: http.c:52
void * buf
Definition: avisynth_c.h:766
Definition: url.h:38
#define AVIO_FLAG_READ_WRITE
read-write pseudo flag
Definition: avio.h:656
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
unsigned char buffer[BUFFER_SIZE]
Definition: http.c:64
char * http_version
Definition: http.c:77
double value
Definition: eval.c:98
Describe the class of an AVClass context structure.
Definition: log.h:67
#define SPACE_CHARS
Definition: internal.h:354
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord, int maxc)
Definition: vf_neighbor.c:197
void * priv_data
Definition: url.h:41
#define AVERROR_HTTP_OTHER_4XX
Definition: error.h:80
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
#define snprintf
Definition: snprintf.h:34
int icy
Definition: http.c:102
misc parsing utilities
char * ff_http_auth_create_response(HTTPAuthState *state, const char *auth, const char *path, const char *method)
Definition: httpauth.c:245
const char * name
Definition: url.h:55
URLContext * hd
Definition: http.c:63
static int has_header(const char *str, const char *header)
Definition: http.c:1110
char * mime_type
Definition: http.c:76
#define SIZE_SPECIFIER
Definition: internal.h:262
#define flags(name, subs,...)
Definition: cbs_av1.c:561
#define AVERROR_HTTP_FORBIDDEN
Definition: error.h:78
int ffurl_close(URLContext *h)
Definition: avio.c:467
static int process_line(URLContext *h, char *line, int line_count, int *new_location)
Definition: http.c:874
int ff_http_do_new_request(URLContext *h, const char *uri)
Send a new HTTP request, reusing the old connection.
Definition: http.c:308
char * av_strtok(char *s, const char *delim, char **saveptr)
Split the string into several tokens which can be accessed by successive calls to av_strtok()...
Definition: avstring.c:184
int av_strstart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str.
Definition: avstring.c:34
Main libavformat public API header.
char * cookies
holds newline ( ) delimited Set-Cookie header field values (without the "Set-Cookie: " field name) ...
Definition: http.c:99
#define MAX_REDIRECTS
Definition: http.c:49
static int parse_content_encoding(URLContext *h, const char *p)
Definition: http.c:673
const struct URLProtocol * prot
Definition: url.h:40
int reconnect_at_eof
Definition: http.c:120
static double c[64]
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
Convenience wrapper for av_dict_set that converts the value to a string and stores it...
Definition: dict.c:147
HandshakeState
Definition: http.c:54
static int get_cookies(HTTPContext *s, char **cookies, const char *path, const char *domain)
Create a string containing cookie values for use as a HTTP cookie header field value for a particular...
Definition: http.c:1028
int http_code
Definition: http.c:66
char * filename
specified URL
Definition: url.h:42
int listen
Definition: http.c:123
static int http_open(URLContext *h, const char *uri, int flags, AVDictionary **options)
Definition: http.c:523
#define AVSEEK_SIZE
ORing this as the "whence" parameter to a seek function causes it to return the filesize without seek...
Definition: avio.h:531
char * key
Definition: dict.h:86
void ff_http_auth_handle_header(HTTPAuthState *state, const char *key, const char *value)
Definition: httpauth.c:90
int multiple_requests
Definition: http.c:94
HTTPAuthState auth_state
Definition: http.c:72
#define av_free(p)
static int cookie_string(AVDictionary *dict, char **cookies)
Definition: http.c:851
char * value
Definition: dict.h:87
const URLProtocol ff_https_protocol
int len
static int parse_location(HTTPContext *s, const char *p)
Definition: http.c:644
char * resource
Definition: http.c:124
char * location
Definition: http.c:71
static int http_shutdown(URLContext *h, int flags)
Definition: http.c:1622
static int http_write_reply(URLContext *h, int status_code)
Definition: http.c:376
#define AV_OPT_FLAG_READONLY
The option may not be set through the AVOptions API, only read.
Definition: opt.h:289
int end_header
Definition: http.c:92
unsigned char * buf_ptr
Definition: http.c:64
#define D
Definition: http.c:132
#define AVERROR_HTTP_BAD_REQUEST
Definition: error.h:76
char * method
Definition: http.c:118
static int parse_icy(HTTPContext *s, const char *tag, const char *p)
Definition: http.c:707
uint64_t end_off
Definition: http.c:70
static int parse_set_cookie_expiry_time(const char *exp_str, struct tm *buf)
Definition: http.c:729
static int http_read_stream(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1445
#define av_freep(p)
static int http_read_stream_all(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1501
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
unbuffered private I/O API
static void handle_http_errors(URLContext *h, int error)
Definition: http.c:450
static int parse_set_cookie(const char *set_cookie, AVDictionary **dict)
Definition: http.c:754
static int64_t http_seek(URLContext *h, int64_t off, int whence)
Definition: http.c:1729
int reply_code
Definition: http.c:125
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:449
int ffurl_read(URLContext *h, unsigned char *buf, int size)
Read up to size bytes from the resource accessed by h, and store the read bytes in buf...
Definition: avio.c:407
char * av_strndup(const char *s, size_t len)
Duplicate a substring of a string.
Definition: mem.c:263
static int http_accept(URLContext *s, URLContext **c)
Definition: http.c:564
#define HTTP_CLASS(flavor)
Definition: http.c:1746
No authentication specified.
Definition: httpauth.h:29
static int check_http_code(URLContext *h, int http_code, const char *end)
Definition: http.c:629
static uint8_t tmp[11]
Definition: aes_ctr.c:26