| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * unbuffered I/O | ||
| 3 | * Copyright (c) 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 "libavutil/avstring.h" | ||
| 23 | #include "libavutil/dict.h" | ||
| 24 | #include "libavutil/opt.h" | ||
| 25 | #include "libavutil/time.h" | ||
| 26 | #include "libavutil/avassert.h" | ||
| 27 | #include "os_support.h" | ||
| 28 | #include "avformat.h" | ||
| 29 | #include "internal.h" | ||
| 30 | #if CONFIG_NETWORK | ||
| 31 | #include "network.h" | ||
| 32 | #endif | ||
| 33 | #include "url.h" | ||
| 34 | |||
| 35 | /** @name Logging context. */ | ||
| 36 | /*@{*/ | ||
| 37 | 6 | static const char *urlcontext_to_name(void *ptr) | |
| 38 | { | ||
| 39 | 6 | URLContext *h = (URLContext *)ptr; | |
| 40 |
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6 | if (h->prot) |
| 41 | 6 | return h->prot->name; | |
| 42 | else | ||
| 43 | ✗ | return "NULL"; | |
| 44 | } | ||
| 45 | |||
| 46 | 32944 | static void *urlcontext_child_next(void *obj, void *prev) | |
| 47 | { | ||
| 48 | 32944 | URLContext *h = obj; | |
| 49 |
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32944 | if (!prev && h->priv_data && h->prot->priv_data_class) |
| 50 | 16472 | return h->priv_data; | |
| 51 | 16472 | return NULL; | |
| 52 | } | ||
| 53 | |||
| 54 | #define OFFSET(x) offsetof(URLContext,x) | ||
| 55 | #define E AV_OPT_FLAG_ENCODING_PARAM | ||
| 56 | #define D AV_OPT_FLAG_DECODING_PARAM | ||
| 57 | static const AVOption options[] = { | ||
| 58 | {"protocol_whitelist", "List of protocols that are allowed to be used", OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D }, | ||
| 59 | {"protocol_blacklist", "List of protocols that are not allowed to be used", OFFSET(protocol_blacklist), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D }, | ||
| 60 | {"rw_timeout", "Timeout for IO operations (in microseconds)", offsetof(URLContext, rw_timeout), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_DECODING_PARAM }, | ||
| 61 | { NULL } | ||
| 62 | }; | ||
| 63 | |||
| 64 | const AVClass ffurl_context_class = { | ||
| 65 | .class_name = "URLContext", | ||
| 66 | .item_name = urlcontext_to_name, | ||
| 67 | .option = options, | ||
| 68 | .version = LIBAVUTIL_VERSION_INT, | ||
| 69 | .child_next = urlcontext_child_next, | ||
| 70 | .child_class_iterate = ff_urlcontext_child_class_iterate, | ||
| 71 | }; | ||
| 72 | /*@}*/ | ||
| 73 | |||
| 74 | 141012 | static int url_alloc_for_protocol(URLContext **puc, const URLProtocol *up, | |
| 75 | const char *filename, int flags, | ||
| 76 | const AVIOInterruptCB *int_cb) | ||
| 77 | { | ||
| 78 | URLContext *uc; | ||
| 79 | int err; | ||
| 80 | |||
| 81 | #if CONFIG_NETWORK | ||
| 82 |
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141012 | if (up->flags & URL_PROTOCOL_FLAG_NETWORK && !ff_network_init()) |
| 83 | ✗ | return AVERROR(EIO); | |
| 84 | #endif | ||
| 85 |
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141012 | if ((flags & AVIO_FLAG_READ) && !up->url_read) { |
| 86 | ✗ | av_log(NULL, AV_LOG_ERROR, | |
| 87 | ✗ | "Impossible to open the '%s' protocol for reading\n", up->name); | |
| 88 | ✗ | return AVERROR(EIO); | |
| 89 | } | ||
| 90 |
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141012 | if ((flags & AVIO_FLAG_WRITE) && !up->url_write) { |
| 91 | ✗ | av_log(NULL, AV_LOG_ERROR, | |
| 92 | ✗ | "Impossible to open the '%s' protocol for writing\n", up->name); | |
| 93 | ✗ | return AVERROR(EIO); | |
| 94 | } | ||
| 95 | 141012 | uc = av_mallocz(sizeof(URLContext) + strlen(filename) + 1); | |
| 96 |
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141012 | if (!uc) { |
| 97 | ✗ | err = AVERROR(ENOMEM); | |
| 98 | ✗ | goto fail; | |
| 99 | } | ||
| 100 | 141012 | uc->av_class = &ffurl_context_class; | |
| 101 | 141012 | uc->filename = (char *)&uc[1]; | |
| 102 | 141012 | strcpy(uc->filename, filename); | |
| 103 | 141012 | uc->prot = up; | |
| 104 | 141012 | uc->flags = flags; | |
| 105 | 141012 | uc->is_streamed = 0; /* default = not streamed */ | |
| 106 | 141012 | uc->max_packet_size = 0; /* default: stream file */ | |
| 107 |
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141012 | if (up->priv_data_size) { |
| 108 | 141012 | uc->priv_data = av_mallocz(up->priv_data_size); | |
| 109 |
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141012 | if (!uc->priv_data) { |
| 110 | ✗ | err = AVERROR(ENOMEM); | |
| 111 | ✗ | goto fail; | |
| 112 | } | ||
| 113 |
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141012 | if (up->priv_data_class) { |
| 114 | char *start; | ||
| 115 | 138691 | *(const AVClass **)uc->priv_data = up->priv_data_class; | |
| 116 | 138691 | av_opt_set_defaults(uc->priv_data); | |
| 117 |
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138691 | if (av_strstart(uc->filename, up->name, (const char**)&start) && *start == ',') { |
| 118 | ✗ | int ret= 0; | |
| 119 | ✗ | char *p= start; | |
| 120 | ✗ | char sep= *++p; | |
| 121 | char *key, *val; | ||
| 122 | ✗ | p++; | |
| 123 | |||
| 124 | ✗ | if (strcmp(up->name, "subfile")) | |
| 125 | ✗ | ret = AVERROR(EINVAL); | |
| 126 | |||
| 127 | ✗ | while(ret >= 0 && (key= strchr(p, sep)) && p<key && (val = strchr(key+1, sep))){ | |
| 128 | ✗ | *val= *key= 0; | |
| 129 | ✗ | if (strcmp(p, "start") && strcmp(p, "end")) { | |
| 130 | ✗ | ret = AVERROR_OPTION_NOT_FOUND; | |
| 131 | } else | ||
| 132 | ✗ | ret= av_opt_set(uc->priv_data, p, key+1, 0); | |
| 133 | ✗ | if (ret == AVERROR_OPTION_NOT_FOUND) | |
| 134 | ✗ | av_log(uc, AV_LOG_ERROR, "Key '%s' not found.\n", p); | |
| 135 | ✗ | *val= *key= sep; | |
| 136 | ✗ | p= val+1; | |
| 137 | } | ||
| 138 | ✗ | if(ret<0 || p!=key){ | |
| 139 | ✗ | av_log(uc, AV_LOG_ERROR, "Error parsing options string %s\n", start); | |
| 140 | ✗ | av_freep(&uc->priv_data); | |
| 141 | ✗ | av_freep(&uc); | |
| 142 | ✗ | err = AVERROR(EINVAL); | |
| 143 | ✗ | goto fail; | |
| 144 | } | ||
| 145 | ✗ | memmove(start, key+1, strlen(key)); | |
| 146 | } | ||
| 147 | } | ||
| 148 | } | ||
| 149 |
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141012 | if (int_cb) |
| 150 | 96809 | uc->interrupt_callback = *int_cb; | |
| 151 | |||
| 152 | 141012 | *puc = uc; | |
| 153 | 141012 | return 0; | |
| 154 | ✗ | fail: | |
| 155 | ✗ | *puc = NULL; | |
| 156 | ✗ | if (uc) | |
| 157 | ✗ | av_freep(&uc->priv_data); | |
| 158 | ✗ | av_freep(&uc); | |
| 159 | #if CONFIG_NETWORK | ||
| 160 | ✗ | if (up->flags & URL_PROTOCOL_FLAG_NETWORK) | |
| 161 | ✗ | ff_network_close(); | |
| 162 | #endif | ||
| 163 | ✗ | return err; | |
| 164 | } | ||
| 165 | |||
| 166 | 96864 | int ffurl_connect(URLContext *uc, AVDictionary **options) | |
| 167 | { | ||
| 168 | int err; | ||
| 169 | 96864 | AVDictionary *tmp_opts = NULL; | |
| 170 | AVDictionaryEntry *e; | ||
| 171 | |||
| 172 |
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96864 | if (!options) |
| 173 | ✗ | options = &tmp_opts; | |
| 174 | |||
| 175 | // Check that URLContext was initialized correctly and lists are matching if set | ||
| 176 |
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96864 | av_assert0(!(e=av_dict_get(*options, "protocol_whitelist", NULL, 0)) || |
| 177 | (uc->protocol_whitelist && !strcmp(uc->protocol_whitelist, e->value))); | ||
| 178 |
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96864 | av_assert0(!(e=av_dict_get(*options, "protocol_blacklist", NULL, 0)) || |
| 179 | (uc->protocol_blacklist && !strcmp(uc->protocol_blacklist, e->value))); | ||
| 180 | |||
| 181 |
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96864 | if (uc->protocol_whitelist && av_match_list(uc->prot->name, uc->protocol_whitelist, ',') <= 0) { |
| 182 | ✗ | av_log(uc, AV_LOG_ERROR, "Protocol '%s' not on whitelist '%s'!\n", uc->prot->name, uc->protocol_whitelist); | |
| 183 | ✗ | return AVERROR(EINVAL); | |
| 184 | } | ||
| 185 | |||
| 186 |
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96864 | if (uc->protocol_blacklist && av_match_list(uc->prot->name, uc->protocol_blacklist, ',') > 0) { |
| 187 | ✗ | av_log(uc, AV_LOG_ERROR, "Protocol '%s' on blacklist '%s'!\n", uc->prot->name, uc->protocol_blacklist); | |
| 188 | ✗ | return AVERROR(EINVAL); | |
| 189 | } | ||
| 190 | |||
| 191 |
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96864 | if (!uc->protocol_whitelist && uc->prot->default_whitelist) { |
| 192 | 94409 | av_log(uc, AV_LOG_DEBUG, "Setting default whitelist '%s'\n", uc->prot->default_whitelist); | |
| 193 | 94409 | uc->protocol_whitelist = av_strdup(uc->prot->default_whitelist); | |
| 194 |
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94409 | if (!uc->protocol_whitelist) { |
| 195 | ✗ | return AVERROR(ENOMEM); | |
| 196 | } | ||
| 197 |
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2455 | } else if (!uc->protocol_whitelist) |
| 198 | 2322 | av_log(uc, AV_LOG_DEBUG, "No default whitelist set\n"); // This should be an error once all declare a default whitelist | |
| 199 | |||
| 200 |
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96864 | if ((err = av_dict_set(options, "protocol_whitelist", uc->protocol_whitelist, 0)) < 0) |
| 201 | ✗ | return err; | |
| 202 |
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96864 | if ((err = av_dict_set(options, "protocol_blacklist", uc->protocol_blacklist, 0)) < 0) |
| 203 | ✗ | return err; | |
| 204 | |||
| 205 | 96864 | err = | |
| 206 | 96865 | uc->prot->url_open2 ? uc->prot->url_open2(uc, | |
| 207 | 1 | uc->filename, | |
| 208 | uc->flags, | ||
| 209 |
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96864 | options) : |
| 210 | 96863 | uc->prot->url_open(uc, uc->filename, uc->flags); | |
| 211 | |||
| 212 | 96864 | av_dict_set(options, "protocol_whitelist", NULL, 0); | |
| 213 | 96864 | av_dict_set(options, "protocol_blacklist", NULL, 0); | |
| 214 | |||
| 215 |
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96864 | if (err) |
| 216 | 1 | return err; | |
| 217 | 96863 | uc->is_connected = 1; | |
| 218 | /* We must be careful here as ffurl_seek() could be slow, | ||
| 219 | * for example for http */ | ||
| 220 |
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96863 | if ((uc->flags & AVIO_FLAG_WRITE) || !strcmp(uc->prot->name, "file")) |
| 221 |
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96861 | if (!uc->is_streamed && ffurl_seek(uc, 0, SEEK_SET) < 0) |
| 222 | 2321 | uc->is_streamed = 1; | |
| 223 | 96863 | return 0; | |
| 224 | } | ||
| 225 | |||
| 226 | ✗ | int ffurl_accept(URLContext *s, URLContext **c) | |
| 227 | { | ||
| 228 | ✗ | av_assert0(!*c); | |
| 229 | ✗ | if (s->prot->url_accept) | |
| 230 | ✗ | return s->prot->url_accept(s, c); | |
| 231 | ✗ | return AVERROR(EBADF); | |
| 232 | } | ||
| 233 | |||
| 234 | ✗ | int ffurl_handshake(URLContext *c) | |
| 235 | { | ||
| 236 | int ret; | ||
| 237 | ✗ | if (c->prot->url_handshake) { | |
| 238 | ✗ | ret = c->prot->url_handshake(c); | |
| 239 | ✗ | if (ret) | |
| 240 | ✗ | return ret; | |
| 241 | } | ||
| 242 | ✗ | c->is_connected = 1; | |
| 243 | ✗ | return 0; | |
| 244 | } | ||
| 245 | |||
| 246 | #define URL_SCHEME_CHARS \ | ||
| 247 | "abcdefghijklmnopqrstuvwxyz" \ | ||
| 248 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" \ | ||
| 249 | "0123456789+-." | ||
| 250 | |||
| 251 | 148494 | static const struct URLProtocol *url_find_protocol(const char *filename) | |
| 252 | { | ||
| 253 | const URLProtocol **protocols; | ||
| 254 | char proto_str[128], proto_nested[128], *ptr; | ||
| 255 | 148494 | size_t proto_len = strspn(filename, URL_SCHEME_CHARS); | |
| 256 | int i; | ||
| 257 | |||
| 258 |
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148494 | if (filename[proto_len] != ':' && |
| 259 |
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148494 | (strncmp(filename, "subfile,", 8) || !strchr(filename + proto_len + 1, ':')) || |
| 260 | 9592 | is_dos_path(filename)) | |
| 261 | 138902 | strcpy(proto_str, "file"); | |
| 262 | else | ||
| 263 | 9592 | av_strlcpy(proto_str, filename, | |
| 264 | 9592 | FFMIN(proto_len + 1, sizeof(proto_str))); | |
| 265 | |||
| 266 | 148494 | av_strlcpy(proto_nested, proto_str, sizeof(proto_nested)); | |
| 267 |
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148494 | if ((ptr = strchr(proto_nested, '+'))) |
| 268 | ✗ | *ptr = '\0'; | |
| 269 | |||
| 270 | 148494 | protocols = ffurl_get_protocols(NULL, NULL); | |
| 271 |
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148494 | if (!protocols) |
| 272 | ✗ | return NULL; | |
| 273 |
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1279215 | for (i = 0; protocols[i]; i++) { |
| 274 | 1279215 | const URLProtocol *up = protocols[i]; | |
| 275 |
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1279215 | if (!strcmp(proto_str, up->name)) { |
| 276 | 148494 | av_freep(&protocols); | |
| 277 | 148494 | return up; | |
| 278 | } | ||
| 279 |
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1130721 | if (up->flags & URL_PROTOCOL_FLAG_NESTED_SCHEME && |
| 280 |
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158084 | !strcmp(proto_nested, up->name)) { |
| 281 | ✗ | av_freep(&protocols); | |
| 282 | ✗ | return up; | |
| 283 | } | ||
| 284 | } | ||
| 285 | ✗ | av_freep(&protocols); | |
| 286 | ✗ | if (av_strstart(filename, "https:", NULL) || av_strstart(filename, "tls:", NULL)) | |
| 287 | ✗ | av_log(NULL, AV_LOG_WARNING, "https protocol not found, recompile FFmpeg with " | |
| 288 | "openssl, gnutls or securetransport enabled.\n"); | ||
| 289 | |||
| 290 | ✗ | return NULL; | |
| 291 | } | ||
| 292 | |||
| 293 | 141012 | int ffurl_alloc(URLContext **puc, const char *filename, int flags, | |
| 294 | const AVIOInterruptCB *int_cb) | ||
| 295 | { | ||
| 296 | 141012 | const URLProtocol *p = NULL; | |
| 297 | |||
| 298 | 141012 | p = url_find_protocol(filename); | |
| 299 |
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141012 | if (p) |
| 300 | 141012 | return url_alloc_for_protocol(puc, p, filename, flags, int_cb); | |
| 301 | |||
| 302 | ✗ | *puc = NULL; | |
| 303 | ✗ | return AVERROR_PROTOCOL_NOT_FOUND; | |
| 304 | } | ||
| 305 | |||
| 306 | 96864 | int ffurl_open_whitelist(URLContext **puc, const char *filename, int flags, | |
| 307 | const AVIOInterruptCB *int_cb, AVDictionary **options, | ||
| 308 | const char *whitelist, const char* blacklist, | ||
| 309 | URLContext *parent) | ||
| 310 | { | ||
| 311 | 96864 | AVDictionary *tmp_opts = NULL; | |
| 312 | AVDictionaryEntry *e; | ||
| 313 | 96864 | int ret = ffurl_alloc(puc, filename, flags, int_cb); | |
| 314 |
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96864 | if (ret < 0) |
| 315 | ✗ | return ret; | |
| 316 |
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96864 | if (parent) { |
| 317 | 1 | ret = av_opt_copy(*puc, parent); | |
| 318 |
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1 | if (ret < 0) |
| 319 | ✗ | goto fail; | |
| 320 | } | ||
| 321 |
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108262 | if (options && |
| 322 | 11398 | (ret = av_opt_set_dict(*puc, options)) < 0) | |
| 323 | ✗ | goto fail; | |
| 324 |
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105941 | if (options && (*puc)->prot->priv_data_class && |
| 325 | 9077 | (ret = av_opt_set_dict((*puc)->priv_data, options)) < 0) | |
| 326 | ✗ | goto fail; | |
| 327 | |||
| 328 |
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96864 | if (!options) |
| 329 | 85466 | options = &tmp_opts; | |
| 330 | |||
| 331 |
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96864 | av_assert0(!whitelist || |
| 332 | !(e=av_dict_get(*options, "protocol_whitelist", NULL, 0)) || | ||
| 333 | !strcmp(whitelist, e->value)); | ||
| 334 |
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96864 | av_assert0(!blacklist || |
| 335 | !(e=av_dict_get(*options, "protocol_blacklist", NULL, 0)) || | ||
| 336 | !strcmp(blacklist, e->value)); | ||
| 337 | |||
| 338 |
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96864 | if ((ret = av_dict_set(options, "protocol_whitelist", whitelist, 0)) < 0) |
| 339 | ✗ | goto fail; | |
| 340 | |||
| 341 |
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96864 | if ((ret = av_dict_set(options, "protocol_blacklist", blacklist, 0)) < 0) |
| 342 | ✗ | goto fail; | |
| 343 | |||
| 344 |
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96864 | if ((ret = av_opt_set_dict(*puc, options)) < 0) |
| 345 | ✗ | goto fail; | |
| 346 | |||
| 347 | 96864 | ret = ffurl_connect(*puc, options); | |
| 348 | |||
| 349 |
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96864 | if (!ret) |
| 350 | 96863 | return 0; | |
| 351 | 1 | fail: | |
| 352 | 1 | ffurl_closep(puc); | |
| 353 | 1 | return ret; | |
| 354 | } | ||
| 355 | |||
| 356 | 503759 | static inline int retry_transfer_wrapper(URLContext *h, uint8_t *buf, | |
| 357 | int size, int size_min, | ||
| 358 | int (*transfer_func)(URLContext *h, | ||
| 359 | uint8_t *buf, | ||
| 360 | int size)) | ||
| 361 | { | ||
| 362 | int ret, len; | ||
| 363 | 503759 | int fast_retries = 5; | |
| 364 | 503759 | int64_t wait_since = 0; | |
| 365 | |||
| 366 | 503759 | len = 0; | |
| 367 |
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995764 | while (len < size_min) { |
| 368 |
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503759 | if (ff_check_interrupt(&h->interrupt_callback)) |
| 369 | ✗ | return AVERROR_EXIT; | |
| 370 | 503759 | ret = transfer_func(h, buf + len, size - len); | |
| 371 |
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503759 | if (ret == AVERROR(EINTR)) |
| 372 | ✗ | continue; | |
| 373 |
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503759 | if (h->flags & AVIO_FLAG_NONBLOCK) |
| 374 | ✗ | return ret; | |
| 375 |
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503759 | if (ret == AVERROR(EAGAIN)) { |
| 376 | ✗ | ret = 0; | |
| 377 | ✗ | if (fast_retries) { | |
| 378 | ✗ | fast_retries--; | |
| 379 | } else { | ||
| 380 | ✗ | if (h->rw_timeout) { | |
| 381 | ✗ | if (!wait_since) | |
| 382 | ✗ | wait_since = av_gettime_relative(); | |
| 383 | ✗ | else if (av_gettime_relative() > wait_since + h->rw_timeout) | |
| 384 | ✗ | return AVERROR(EIO); | |
| 385 | } | ||
| 386 | ✗ | av_usleep(1000); | |
| 387 | } | ||
| 388 |
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503759 | } else if (ret == AVERROR_EOF) |
| 389 |
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11754 | return (len > 0) ? len : AVERROR_EOF; |
| 390 |
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492005 | else if (ret < 0) |
| 391 | ✗ | return ret; | |
| 392 |
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492005 | if (ret) { |
| 393 | 492005 | fast_retries = FFMAX(fast_retries, 2); | |
| 394 | 492005 | wait_since = 0; | |
| 395 | } | ||
| 396 | 492005 | len += ret; | |
| 397 | } | ||
| 398 | 492005 | return len; | |
| 399 | } | ||
| 400 | |||
| 401 | 195114 | int ffurl_read(URLContext *h, unsigned char *buf, int size) | |
| 402 | { | ||
| 403 |
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195114 | if (!(h->flags & AVIO_FLAG_READ)) |
| 404 | ✗ | return AVERROR(EIO); | |
| 405 | 195114 | return retry_transfer_wrapper(h, buf, size, 1, h->prot->url_read); | |
| 406 | } | ||
| 407 | |||
| 408 | ✗ | int ffurl_read_complete(URLContext *h, unsigned char *buf, int size) | |
| 409 | { | ||
| 410 | ✗ | if (!(h->flags & AVIO_FLAG_READ)) | |
| 411 | ✗ | return AVERROR(EIO); | |
| 412 | ✗ | return retry_transfer_wrapper(h, buf, size, size, h->prot->url_read); | |
| 413 | } | ||
| 414 | |||
| 415 | 308645 | int ffurl_write(URLContext *h, const unsigned char *buf, int size) | |
| 416 | { | ||
| 417 |
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308645 | if (!(h->flags & AVIO_FLAG_WRITE)) |
| 418 | ✗ | return AVERROR(EIO); | |
| 419 | /* avoid sending too big packets */ | ||
| 420 |
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308645 | if (h->max_packet_size && size > h->max_packet_size) |
| 421 | ✗ | return AVERROR(EIO); | |
| 422 | |||
| 423 | 308645 | return retry_transfer_wrapper(h, (unsigned char *)buf, size, size, | |
| 424 | (int (*)(struct URLContext *, uint8_t *, int)) | ||
| 425 | 308645 | h->prot->url_write); | |
| 426 | } | ||
| 427 | |||
| 428 | 325989 | int64_t ffurl_seek(URLContext *h, int64_t pos, int whence) | |
| 429 | { | ||
| 430 | int64_t ret; | ||
| 431 | |||
| 432 |
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|
325989 | if (!h->prot->url_seek) |
| 433 | 30235 | return AVERROR(ENOSYS); | |
| 434 | 295754 | ret = h->prot->url_seek(h, pos, whence & ~AVSEEK_FORCE); | |
| 435 | 295754 | return ret; | |
| 436 | } | ||
| 437 | |||
| 438 | 141012 | int ffurl_closep(URLContext **hh) | |
| 439 | { | ||
| 440 | 141012 | URLContext *h= *hh; | |
| 441 | 141012 | int ret = 0; | |
| 442 |
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141012 | if (!h) |
| 443 | ✗ | return 0; /* can happen when ffurl_open fails */ | |
| 444 | |||
| 445 |
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141012 | if (h->is_connected && h->prot->url_close) |
| 446 | 94376 | ret = h->prot->url_close(h); | |
| 447 | #if CONFIG_NETWORK | ||
| 448 |
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141012 | if (h->prot->flags & URL_PROTOCOL_FLAG_NETWORK) |
| 449 | ✗ | ff_network_close(); | |
| 450 | #endif | ||
| 451 |
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141012 | if (h->prot->priv_data_size) { |
| 452 |
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141012 | if (h->prot->priv_data_class) |
| 453 | 138691 | av_opt_free(h->priv_data); | |
| 454 | 141012 | av_freep(&h->priv_data); | |
| 455 | } | ||
| 456 | 141012 | av_opt_free(h); | |
| 457 | 141012 | av_freep(hh); | |
| 458 | 141012 | return ret; | |
| 459 | } | ||
| 460 | |||
| 461 | 141010 | int ffurl_close(URLContext *h) | |
| 462 | { | ||
| 463 | 141010 | return ffurl_closep(&h); | |
| 464 | } | ||
| 465 | |||
| 466 | |||
| 467 | 7482 | const char *avio_find_protocol_name(const char *url) | |
| 468 | { | ||
| 469 | 7482 | const URLProtocol *p = url_find_protocol(url); | |
| 470 | |||
| 471 |
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|
7482 | return p ? p->name : NULL; |
| 472 | } | ||
| 473 | |||
| 474 | 43992 | int avio_check(const char *url, int flags) | |
| 475 | { | ||
| 476 | URLContext *h; | ||
| 477 | 43992 | int ret = ffurl_alloc(&h, url, flags, NULL); | |
| 478 |
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43992 | if (ret < 0) |
| 479 | ✗ | return ret; | |
| 480 | |||
| 481 |
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|
43992 | if (h->prot->url_check) { |
| 482 | 43992 | ret = h->prot->url_check(h, flags); | |
| 483 | } else { | ||
| 484 | ✗ | ret = ffurl_connect(h, NULL); | |
| 485 | ✗ | if (ret >= 0) | |
| 486 | ✗ | ret = flags; | |
| 487 | } | ||
| 488 | |||
| 489 | 43992 | ffurl_close(h); | |
| 490 | 43992 | return ret; | |
| 491 | } | ||
| 492 | |||
| 493 | 78 | int ffurl_move(const char *url_src, const char *url_dst) | |
| 494 | { | ||
| 495 | URLContext *h_src, *h_dst; | ||
| 496 | 78 | int ret = ffurl_alloc(&h_src, url_src, AVIO_FLAG_READ_WRITE, NULL); | |
| 497 |
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78 | if (ret < 0) |
| 498 | ✗ | return ret; | |
| 499 | 78 | ret = ffurl_alloc(&h_dst, url_dst, AVIO_FLAG_WRITE, NULL); | |
| 500 |
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78 | if (ret < 0) { |
| 501 | ✗ | ffurl_close(h_src); | |
| 502 | ✗ | return ret; | |
| 503 | } | ||
| 504 | |||
| 505 |
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78 | if (h_src->prot == h_dst->prot && h_src->prot->url_move) |
| 506 | 78 | ret = h_src->prot->url_move(h_src, h_dst); | |
| 507 | else | ||
| 508 | ✗ | ret = AVERROR(ENOSYS); | |
| 509 | |||
| 510 | 78 | ffurl_close(h_src); | |
| 511 | 78 | ffurl_close(h_dst); | |
| 512 | 78 | return ret; | |
| 513 | } | ||
| 514 | |||
| 515 | ✗ | int ffurl_delete(const char *url) | |
| 516 | { | ||
| 517 | URLContext *h; | ||
| 518 | ✗ | int ret = ffurl_alloc(&h, url, AVIO_FLAG_WRITE, NULL); | |
| 519 | ✗ | if (ret < 0) | |
| 520 | ✗ | return ret; | |
| 521 | |||
| 522 | ✗ | if (h->prot->url_delete) | |
| 523 | ✗ | ret = h->prot->url_delete(h); | |
| 524 | else | ||
| 525 | ✗ | ret = AVERROR(ENOSYS); | |
| 526 | |||
| 527 | ✗ | ffurl_close(h); | |
| 528 | ✗ | return ret; | |
| 529 | } | ||
| 530 | |||
| 531 | #if !FF_API_AVIODIRCONTEXT | ||
| 532 | struct AVIODirContext { | ||
| 533 | struct URLContext *url_context; | ||
| 534 | }; | ||
| 535 | #endif | ||
| 536 | |||
| 537 | ✗ | int avio_open_dir(AVIODirContext **s, const char *url, AVDictionary **options) | |
| 538 | { | ||
| 539 | ✗ | URLContext *h = NULL; | |
| 540 | ✗ | AVIODirContext *ctx = NULL; | |
| 541 | int ret; | ||
| 542 | ✗ | av_assert0(s); | |
| 543 | |||
| 544 | ✗ | ctx = av_mallocz(sizeof(*ctx)); | |
| 545 | ✗ | if (!ctx) { | |
| 546 | ✗ | ret = AVERROR(ENOMEM); | |
| 547 | ✗ | goto fail; | |
| 548 | } | ||
| 549 | |||
| 550 | ✗ | if ((ret = ffurl_alloc(&h, url, AVIO_FLAG_READ, NULL)) < 0) | |
| 551 | ✗ | goto fail; | |
| 552 | |||
| 553 | ✗ | if (h->prot->url_open_dir && h->prot->url_read_dir && h->prot->url_close_dir) { | |
| 554 | ✗ | if (options && h->prot->priv_data_class && | |
| 555 | ✗ | (ret = av_opt_set_dict(h->priv_data, options)) < 0) | |
| 556 | ✗ | goto fail; | |
| 557 | ✗ | ret = h->prot->url_open_dir(h); | |
| 558 | } else | ||
| 559 | ✗ | ret = AVERROR(ENOSYS); | |
| 560 | ✗ | if (ret < 0) | |
| 561 | ✗ | goto fail; | |
| 562 | |||
| 563 | ✗ | h->is_connected = 1; | |
| 564 | ✗ | ctx->url_context = h; | |
| 565 | ✗ | *s = ctx; | |
| 566 | ✗ | return 0; | |
| 567 | |||
| 568 | ✗ | fail: | |
| 569 | ✗ | av_free(ctx); | |
| 570 | ✗ | *s = NULL; | |
| 571 | ✗ | ffurl_close(h); | |
| 572 | ✗ | return ret; | |
| 573 | } | ||
| 574 | |||
| 575 | ✗ | int avio_read_dir(AVIODirContext *s, AVIODirEntry **next) | |
| 576 | { | ||
| 577 | URLContext *h; | ||
| 578 | int ret; | ||
| 579 | |||
| 580 | ✗ | if (!s || !s->url_context) | |
| 581 | ✗ | return AVERROR(EINVAL); | |
| 582 | ✗ | h = s->url_context; | |
| 583 | ✗ | if ((ret = h->prot->url_read_dir(h, next)) < 0) | |
| 584 | ✗ | avio_free_directory_entry(next); | |
| 585 | ✗ | return ret; | |
| 586 | } | ||
| 587 | |||
| 588 | ✗ | int avio_close_dir(AVIODirContext **s) | |
| 589 | { | ||
| 590 | URLContext *h; | ||
| 591 | |||
| 592 | ✗ | av_assert0(s); | |
| 593 | ✗ | if (!(*s) || !(*s)->url_context) | |
| 594 | ✗ | return AVERROR(EINVAL); | |
| 595 | ✗ | h = (*s)->url_context; | |
| 596 | ✗ | h->prot->url_close_dir(h); | |
| 597 | ✗ | ffurl_close(h); | |
| 598 | ✗ | av_freep(s); | |
| 599 | ✗ | *s = NULL; | |
| 600 | ✗ | return 0; | |
| 601 | } | ||
| 602 | |||
| 603 | ✗ | void avio_free_directory_entry(AVIODirEntry **entry) | |
| 604 | { | ||
| 605 | ✗ | if (!entry || !*entry) | |
| 606 | ✗ | return; | |
| 607 | ✗ | av_free((*entry)->name); | |
| 608 | ✗ | av_freep(entry); | |
| 609 | } | ||
| 610 | |||
| 611 | ✗ | int64_t ffurl_size(URLContext *h) | |
| 612 | { | ||
| 613 | int64_t pos, size; | ||
| 614 | |||
| 615 | ✗ | size = ffurl_seek(h, 0, AVSEEK_SIZE); | |
| 616 | ✗ | if (size < 0) { | |
| 617 | ✗ | pos = ffurl_seek(h, 0, SEEK_CUR); | |
| 618 | ✗ | if ((size = ffurl_seek(h, -1, SEEK_END)) < 0) | |
| 619 | ✗ | return size; | |
| 620 | ✗ | size++; | |
| 621 | ✗ | ffurl_seek(h, pos, SEEK_SET); | |
| 622 | } | ||
| 623 | ✗ | return size; | |
| 624 | } | ||
| 625 | |||
| 626 | ✗ | int ffurl_get_file_handle(URLContext *h) | |
| 627 | { | ||
| 628 | ✗ | if (!h || !h->prot || !h->prot->url_get_file_handle) | |
| 629 | ✗ | return -1; | |
| 630 | ✗ | return h->prot->url_get_file_handle(h); | |
| 631 | } | ||
| 632 | |||
| 633 | ✗ | int ffurl_get_multi_file_handle(URLContext *h, int **handles, int *numhandles) | |
| 634 | { | ||
| 635 | ✗ | if (!h || !h->prot) | |
| 636 | ✗ | return AVERROR(ENOSYS); | |
| 637 | ✗ | if (!h->prot->url_get_multi_file_handle) { | |
| 638 | ✗ | if (!h->prot->url_get_file_handle) | |
| 639 | ✗ | return AVERROR(ENOSYS); | |
| 640 | ✗ | *handles = av_malloc(sizeof(**handles)); | |
| 641 | ✗ | if (!*handles) | |
| 642 | ✗ | return AVERROR(ENOMEM); | |
| 643 | ✗ | *numhandles = 1; | |
| 644 | ✗ | *handles[0] = h->prot->url_get_file_handle(h); | |
| 645 | ✗ | return 0; | |
| 646 | } | ||
| 647 | ✗ | return h->prot->url_get_multi_file_handle(h, handles, numhandles); | |
| 648 | } | ||
| 649 | |||
| 650 | 490892 | int ffurl_get_short_seek(URLContext *h) | |
| 651 | { | ||
| 652 |
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490892 | if (!h || !h->prot || !h->prot->url_get_short_seek) |
| 653 | 490892 | return AVERROR(ENOSYS); | |
| 654 | ✗ | return h->prot->url_get_short_seek(h); | |
| 655 | } | ||
| 656 | |||
| 657 | ✗ | int ffurl_shutdown(URLContext *h, int flags) | |
| 658 | { | ||
| 659 | ✗ | if (!h || !h->prot || !h->prot->url_shutdown) | |
| 660 | ✗ | return AVERROR(ENOSYS); | |
| 661 | ✗ | return h->prot->url_shutdown(h, flags); | |
| 662 | } | ||
| 663 | |||
| 664 | 690053 | int ff_check_interrupt(AVIOInterruptCB *cb) | |
| 665 | { | ||
| 666 |
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690053 | if (cb && cb->callback) |
| 667 | 663113 | return cb->callback(cb->opaque); | |
| 668 | 26940 | return 0; | |
| 669 | } | ||
| 670 | |||
| 671 | 78 | int ff_rename(const char *url_src, const char *url_dst, void *logctx) | |
| 672 | { | ||
| 673 | 78 | int ret = ffurl_move(url_src, url_dst); | |
| 674 |
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78 | if (ret < 0) |
| 675 | ✗ | av_log(logctx, AV_LOG_ERROR, "failed to rename file %s to %s: %s\n", url_src, url_dst, av_err2str(ret)); | |
| 676 | 78 | return ret; | |
| 677 | } | ||
| 678 |