Mercurial > hg > nginx
annotate src/http/modules/ngx_http_flv_module.c @ 1553:e3134867a810
use ngx_strnstr()
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 01 Oct 2007 14:48:45 +0000 |
| parents | 223e92651ca5 |
| children | 25ee6eee7573 |
| rev | line source |
|---|---|
| 753 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 #include <ngx_config.h> | |
| 7 #include <ngx_core.h> | |
| 8 #include <ngx_http.h> | |
| 9 | |
| 10 | |
| 11 static char *ngx_http_flv(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
| 12 | |
| 13 static ngx_command_t ngx_http_flv_commands[] = { | |
| 14 | |
| 15 { ngx_string("flv"), | |
| 16 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, | |
| 17 ngx_http_flv, | |
| 18 0, | |
| 19 0, | |
| 20 NULL }, | |
| 21 | |
| 22 ngx_null_command | |
| 23 }; | |
| 24 | |
| 25 | |
| 26 static u_char ngx_flv_header[] = "FLV\x1\x1\0\0\0\x9\0\0\0\x9"; | |
| 27 | |
| 28 | |
| 29 static ngx_http_module_t ngx_http_flv_module_ctx = { | |
| 30 NULL, /* preconfiguration */ | |
| 31 NULL, /* postconfiguration */ | |
| 32 | |
| 33 NULL, /* create main configuration */ | |
| 34 NULL, /* init main configuration */ | |
| 35 | |
| 36 NULL, /* create server configuration */ | |
| 37 NULL, /* merge server configuration */ | |
| 38 | |
| 39 NULL, /* create location configuration */ | |
| 40 NULL /* merge location configuration */ | |
| 41 }; | |
| 42 | |
| 43 | |
| 44 ngx_module_t ngx_http_flv_module = { | |
| 45 NGX_MODULE_V1, | |
| 46 &ngx_http_flv_module_ctx, /* module context */ | |
| 47 ngx_http_flv_commands, /* module directives */ | |
| 48 NGX_HTTP_MODULE, /* module type */ | |
| 49 NULL, /* init master */ | |
| 50 NULL, /* init module */ | |
| 51 NULL, /* init process */ | |
| 52 NULL, /* init thread */ | |
| 53 NULL, /* exit thread */ | |
| 54 NULL, /* exit process */ | |
| 55 NULL, /* exit master */ | |
| 56 NGX_MODULE_V1_PADDING | |
| 57 }; | |
| 58 | |
| 59 | |
| 60 static ngx_int_t | |
| 61 ngx_http_flv_handler(ngx_http_request_t *r) | |
| 62 { | |
| 1454 | 63 u_char *p, *last; |
| 753 | 64 off_t start, len; |
|
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65 size_t root; |
| 753 | 66 ngx_fd_t fd; |
| 67 ngx_int_t rc; | |
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68 ngx_uint_t level, i; |
| 753 | 69 ngx_str_t path; |
| 70 ngx_log_t *log; | |
| 71 ngx_buf_t *b; | |
| 72 ngx_chain_t out[2]; | |
| 1454 | 73 ngx_open_file_info_t of; |
| 753 | 74 ngx_http_core_loc_conf_t *clcf; |
| 75 | |
| 76 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { | |
| 77 return NGX_HTTP_NOT_ALLOWED; | |
| 78 } | |
| 79 | |
| 80 if (r->uri.data[r->uri.len - 1] == '/') { | |
| 81 return NGX_DECLINED; | |
| 82 } | |
| 83 | |
| 84 /* TODO: Win32 */ | |
| 85 if (r->zero_in_uri) { | |
| 86 return NGX_DECLINED; | |
| 87 } | |
| 88 | |
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89 rc = ngx_http_discard_request_body(r); |
| 753 | 90 |
| 1374 | 91 if (rc != NGX_OK) { |
| 753 | 92 return rc; |
| 93 } | |
| 94 | |
| 1454 | 95 last = ngx_http_map_uri_to_path(r, &path, &root, 0); |
| 96 if (last == NULL) { | |
| 753 | 97 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 98 } | |
| 99 | |
| 100 log = r->connection->log; | |
| 101 | |
| 1454 | 102 path.len = last - path.data; |
| 753 | 103 |
| 1454 | 104 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, |
| 105 "http flv filename: \"%V\"", &path); | |
| 106 | |
| 107 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 753 | 108 |
| 1454 | 109 of.test_dir = 0; |
| 110 of.retest = clcf->open_file_cache_retest; | |
| 111 of.errors = clcf->open_file_cache_errors; | |
| 1457 | 112 of.events = clcf->open_file_cache_events; |
| 1454 | 113 |
| 114 rc = ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool); | |
| 753 | 115 |
| 1454 | 116 if (rc == NGX_ERROR) { |
| 753 | 117 |
| 1454 | 118 switch (of.err) { |
| 119 | |
| 120 case 0: | |
| 121 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 122 | |
| 123 case NGX_ENOENT: | |
| 124 case NGX_ENOTDIR: | |
| 125 case NGX_ENAMETOOLONG: | |
| 126 | |
| 753 | 127 level = NGX_LOG_ERR; |
| 128 rc = NGX_HTTP_NOT_FOUND; | |
| 1454 | 129 break; |
| 753 | 130 |
| 1454 | 131 case NGX_EACCES: |
| 132 | |
| 753 | 133 level = NGX_LOG_ERR; |
| 134 rc = NGX_HTTP_FORBIDDEN; | |
| 1454 | 135 break; |
| 753 | 136 |
| 1454 | 137 default: |
| 138 | |
| 753 | 139 level = NGX_LOG_CRIT; |
| 140 rc = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 1454 | 141 break; |
| 753 | 142 } |
| 143 | |
| 144 if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) { | |
| 1454 | 145 ngx_log_error(level, log, of.err, |
| 753 | 146 ngx_open_file_n " \"%s\" failed", path.data); |
| 147 } | |
| 148 | |
| 149 return rc; | |
| 150 } | |
| 151 | |
| 1454 | 152 fd = of.fd; |
| 753 | 153 |
| 1454 | 154 if (!of.is_file) { |
| 753 | 155 |
| 156 if (ngx_close_file(fd) == NGX_FILE_ERROR) { | |
| 157 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 158 ngx_close_file_n " \"%s\" failed", path.data); | |
| 159 } | |
| 160 | |
| 161 return NGX_DECLINED; | |
| 162 } | |
| 163 | |
| 164 start = 0; | |
| 1454 | 165 len = of.size; |
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do not send flv header for full file
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parents:
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diff
changeset
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166 i = 1; |
| 753 | 167 |
| 168 if (r->args.len) { | |
| 1553 | 169 p = (u_char *) ngx_strnstr(r->args.data, "start=", r->args.len); |
| 753 | 170 |
| 171 if (p) { | |
| 172 p += 6; | |
| 173 | |
| 174 start = ngx_atoof(p, r->args.len - (p - r->args.data)); | |
| 175 | |
| 176 if (start == NGX_ERROR || start >= len) { | |
| 177 start = 0; | |
| 178 } | |
| 179 | |
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parents:
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180 if (start) { |
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parents:
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181 len = sizeof(ngx_flv_header) - 1 + len - start; |
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parents:
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182 i = 0; |
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parents:
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183 } |
| 753 | 184 } |
| 185 } | |
| 186 | |
| 187 log->action = "sending flv to client"; | |
| 188 | |
| 189 r->headers_out.status = NGX_HTTP_OK; | |
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190 r->headers_out.content_length_n = len; |
| 1454 | 191 r->headers_out.last_modified_time = of.mtime; |
| 753 | 192 |
| 193 if (ngx_http_set_content_type(r) != NGX_OK) { | |
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194 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 753 | 195 } |
| 196 | |
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parents:
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197 if (i == 0) { |
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parents:
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diff
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198 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); |
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parents:
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199 if (b == NULL) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
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200 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
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do not send flv header for full file
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
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201 } |
| 753 | 202 |
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parents:
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diff
changeset
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203 b->pos = ngx_flv_header; |
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parents:
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diff
changeset
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204 b->last = ngx_flv_header + sizeof(ngx_flv_header) - 1; |
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parents:
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diff
changeset
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205 b->memory = 1; |
| 753 | 206 |
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parents:
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diff
changeset
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207 out[0].buf = b; |
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761a94247118
do not send flv header for full file
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parents:
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diff
changeset
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208 out[0].next = &out[1]; |
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209 |
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parents:
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210 } else { |
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211 r->allow_ranges = 1; |
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parents:
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diff
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212 } |
| 753 | 213 |
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parents:
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214 |
| 753 | 215 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); |
| 216 if (b == NULL) { | |
| 217 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 218 } | |
| 219 | |
| 220 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); | |
| 221 if (b->file == NULL) { | |
| 222 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 223 } | |
| 224 | |
| 225 rc = ngx_http_send_header(r); | |
| 226 | |
| 227 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 228 return rc; | |
| 229 } | |
| 230 | |
| 231 b->file_pos = start; | |
| 1454 | 232 b->file_last = of.size; |
| 753 | 233 |
| 234 b->in_file = b->file_last ? 1: 0; | |
| 235 b->last_buf = 1; | |
| 236 b->last_in_chain = 1; | |
| 237 | |
| 238 b->file->fd = fd; | |
| 239 b->file->name = path; | |
| 240 b->file->log = log; | |
| 241 | |
| 242 out[1].buf = b; | |
| 243 out[1].next = NULL; | |
| 244 | |
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parents:
754
diff
changeset
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245 return ngx_http_output_filter(r, &out[i]); |
| 753 | 246 } |
| 247 | |
| 248 | |
| 249 static char * | |
| 250 ngx_http_flv(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 251 { | |
| 252 ngx_http_core_loc_conf_t *clcf; | |
| 253 | |
| 254 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 255 clcf->handler = ngx_http_flv_handler; | |
| 256 | |
| 257 return NGX_CONF_OK; | |
| 258 } |