diff options
author | Luca Barbato <lu_zero@gentoo.org> | 2007-02-28 06:37:54 +0300 |
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committer | Luca Barbato <lu_zero@gentoo.org> | 2007-02-28 06:37:54 +0300 |
commit | 9fca9c0316fe8d8e0bf941847015b85f65481899 (patch) | |
tree | 770607886e99f0c8d61a4c82c7668d97b269c735 /libavformat/http.c | |
parent | bb0eb714bd8343dfc69857914b99ccd3438430bf (diff) |
Reverting stray commit part I
Originally committed as revision 8157 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/http.c')
-rw-r--r-- | libavformat/http.c | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/libavformat/http.c b/libavformat/http.c deleted file mode 100644 index da619bbd95..0000000000 --- a/libavformat/http.c +++ /dev/null @@ -1,351 +0,0 @@ -/* - * HTTP protocol for ffmpeg client - * Copyright (c) 2000, 2001 Fabrice Bellard. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include "avformat.h" -#include <unistd.h> -#include "network.h" - -#include "base64.h" - -/* XXX: POST protocol is not completly implemented because ffmpeg use - only a subset of it */ - -//#define DEBUG - -/* used for protocol handling */ -#define BUFFER_SIZE 1024 -#define URL_SIZE 4096 -#define MAX_REDIRECTS 8 - -typedef struct { - URLContext *hd; - unsigned char buffer[BUFFER_SIZE], *buf_ptr, *buf_end; - int line_count; - int http_code; - offset_t off, filesize; - char location[URL_SIZE]; -} HTTPContext; - -static int http_connect(URLContext *h, const char *path, const char *hoststr, - const char *auth, int *new_location); -static int http_write(URLContext *h, uint8_t *buf, int size); - - -/* return non zero if error */ -static int http_open_cnx(URLContext *h) -{ - const char *path, *proxy_path; - char hostname[1024], hoststr[1024]; - char auth[1024]; - char path1[1024]; - char buf[1024]; - int port, use_proxy, err, location_changed = 0, redirects = 0; - HTTPContext *s = h->priv_data; - URLContext *hd = NULL; - - proxy_path = getenv("http_proxy"); - use_proxy = (proxy_path != NULL) && !getenv("no_proxy") && - strstart(proxy_path, "http://", NULL); - - /* fill the dest addr */ - redo: - /* needed in any case to build the host string */ - url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port, - path1, sizeof(path1), s->location); - if (port > 0) { - snprintf(hoststr, sizeof(hoststr), "%s:%d", hostname, port); - } else { - pstrcpy(hoststr, sizeof(hoststr), hostname); - } - - if (use_proxy) { - url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port, - NULL, 0, proxy_path); - path = s->location; - } else { - if (path1[0] == '\0') - path = "/"; - else - path = path1; - } - if (port < 0) - port = 80; - - snprintf(buf, sizeof(buf), "tcp://%s:%d", hostname, port); - err = url_open(&hd, buf, URL_RDWR); - if (err < 0) - goto fail; - - s->hd = hd; - if (http_connect(h, path, hoststr, auth, &location_changed) < 0) - goto fail; - if (s->http_code == 303 && location_changed == 1) { - /* url moved, get next */ - url_close(hd); - if (redirects++ >= MAX_REDIRECTS) - return AVERROR_IO; - location_changed = 0; - goto redo; - } - return 0; - fail: - if (hd) - url_close(hd); - return AVERROR_IO; -} - -static int http_open(URLContext *h, const char *uri, int flags) -{ - HTTPContext *s; - int ret; - - h->is_streamed = 1; - - s = av_malloc(sizeof(HTTPContext)); - if (!s) { - return AVERROR(ENOMEM); - } - h->priv_data = s; - s->filesize = -1; - s->off = 0; - pstrcpy (s->location, URL_SIZE, uri); - - ret = http_open_cnx(h); - if (ret != 0) - av_free (s); - return ret; -} -static int http_getc(HTTPContext *s) -{ - int len; - if (s->buf_ptr >= s->buf_end) { - len = url_read(s->hd, s->buffer, BUFFER_SIZE); - if (len < 0) { - return AVERROR_IO; - } else if (len == 0) { - return -1; - } else { - s->buf_ptr = s->buffer; - s->buf_end = s->buffer + len; - } - } - return *s->buf_ptr++; -} - -static int process_line(URLContext *h, char *line, int line_count, - int *new_location) -{ - HTTPContext *s = h->priv_data; - char *tag, *p; - - /* end of header */ - if (line[0] == '\0') - return 0; - - p = line; - if (line_count == 0) { - while (!isspace(*p) && *p != '\0') - p++; - while (isspace(*p)) - p++; - s->http_code = strtol(p, NULL, 10); -#ifdef DEBUG - printf("http_code=%d\n", s->http_code); -#endif - } else { - while (*p != '\0' && *p != ':') - p++; - if (*p != ':') - return 1; - - *p = '\0'; - tag = line; - p++; - while (isspace(*p)) - p++; - if (!strcmp(tag, "Location")) { - strcpy(s->location, p); - *new_location = 1; - } else if (!strcmp (tag, "Content-Length") && s->filesize == -1) { - s->filesize = atoll(p); - } else if (!strcmp (tag, "Content-Range")) { - /* "bytes $from-$to/$document_size" */ - const char *slash; - if (!strncmp (p, "bytes ", 6)) { - p += 6; - s->off = atoll(p); - if ((slash = strchr(p, '/')) && strlen(slash) > 0) - s->filesize = atoll(slash+1); - } - h->is_streamed = 0; /* we _can_ in fact seek */ - } - } - return 1; -} - -static int http_connect(URLContext *h, const char *path, const char *hoststr, - const char *auth, int *new_location) -{ - HTTPContext *s = h->priv_data; - int post, err, ch; - char line[1024], *q; - char *auth_b64 = av_malloc(strlen(auth) * 4 / 3 + 12); - offset_t off = s->off; - - if (auth_b64 == NULL) return AVERROR(ENOMEM); - - /* send http header */ - post = h->flags & URL_WRONLY; - - auth_b64 = av_base64_encode(auth_b64, strlen(auth) * 4 / 3 + 12, - (uint8_t *)auth, strlen(auth)); - - snprintf(s->buffer, sizeof(s->buffer), - "%s %s HTTP/1.1\r\n" - "User-Agent: %s\r\n" - "Accept: */*\r\n" - "Range: bytes=%"PRId64"-\r\n" - "Host: %s\r\n" - "Authorization: Basic %s\r\n" - "\r\n", - post ? "POST" : "GET", - path, - LIBAVFORMAT_IDENT, - s->off, - hoststr, - auth_b64); - - av_freep(&auth_b64); - if (http_write(h, s->buffer, strlen(s->buffer)) < 0) - return AVERROR_IO; - - /* init input buffer */ - s->buf_ptr = s->buffer; - s->buf_end = s->buffer; - s->line_count = 0; - s->off = 0; - if (post) { - sleep(1); - return 0; - } - - /* wait for header */ - q = line; - for(;;) { - ch = http_getc(s); - if (ch < 0) - return AVERROR_IO; - if (ch == '\n') { - /* process line */ - if (q > line && q[-1] == '\r') - q--; - *q = '\0'; -#ifdef DEBUG - printf("header='%s'\n", line); -#endif - err = process_line(h, line, s->line_count, new_location); - if (err < 0) - return err; - if (err == 0) - break; - s->line_count++; - q = line; - } else { - if ((q - line) < sizeof(line) - 1) - *q++ = ch; - } - } - - return (off == s->off) ? 0 : -1; -} - - -static int http_read(URLContext *h, uint8_t *buf, int size) -{ - HTTPContext *s = h->priv_data; - int len; - - /* read bytes from input buffer first */ - len = s->buf_end - s->buf_ptr; - if (len > 0) { - if (len > size) - len = size; - memcpy(buf, s->buf_ptr, len); - s->buf_ptr += len; - } else { - len = url_read(s->hd, buf, size); - } - if (len > 0) - s->off += len; - return len; -} - -/* used only when posting data */ -static int http_write(URLContext *h, uint8_t *buf, int size) -{ - HTTPContext *s = h->priv_data; - return url_write(s->hd, buf, size); -} - -static int http_close(URLContext *h) -{ - HTTPContext *s = h->priv_data; - url_close(s->hd); - av_free(s); - return 0; -} - -static offset_t http_seek(URLContext *h, offset_t off, int whence) -{ - HTTPContext *s = h->priv_data; - URLContext *old_hd = s->hd; - offset_t old_off = s->off; - - if (whence == AVSEEK_SIZE) - return s->filesize; - else if ((s->filesize == -1 && whence == SEEK_END) || h->is_streamed) - return -1; - - /* we save the old context in case the seek fails */ - s->hd = NULL; - if (whence == SEEK_CUR) - off += s->off; - else if (whence == SEEK_END) - off += s->filesize; - s->off = off; - - /* if it fails, continue on old connection */ - if (http_open_cnx(h) < 0) { - s->hd = old_hd; - s->off = old_off; - return -1; - } - url_close(old_hd); - return off; -} - -URLProtocol http_protocol = { - "http", - http_open, - http_read, - http_write, - http_seek, - http_close, -}; |