Mercurial > hg > nginx
annotate src/http/ngx_http_write_filter_module.c @ 4253:6efec8b1ff52 stable-1.0
Merging r4193, r4194:
Autoindex fixes:
*) Autoindex: escape '?' in file names.
For files with '?' in their names autoindex generated links with '?' not
escaped. This resulted in effectively truncated links as '?' indicates
query string start.
This is an updated version of the patch originally posted at [1]. It
introduces generic NGX_ESCAPE_URI_COMPONENT which escapes everything but
unreserved characters as per RFC 3986. This approach also renders unneeded
special colon processing (as colon is percent-encoded now), it's dropped
accordingly.
[1] http://nginx.org/pipermail/nginx-devel/2010-February/000112.html
*) Autoindex: escape html in file names.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 01 Nov 2011 14:09:15 +0000 |
parents | 4f5753877376 |
children | 5130c16a130e 41b2d17534c1 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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11 |
681 | 12 static ngx_int_t ngx_http_write_filter_init(ngx_conf_t *cf); |
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14 |
667 | 15 static ngx_http_module_t ngx_http_write_filter_module_ctx = { |
509 | 16 NULL, /* preconfiguration */ |
681 | 17 ngx_http_write_filter_init, /* postconfiguration */ |
177
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18 |
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19 NULL, /* create main configuration */ |
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20 NULL, /* init main configuration */ |
69
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21 |
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22 NULL, /* create server configuration */ |
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23 NULL, /* merge server configuration */ |
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24 |
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25 NULL, /* create location configuration */ |
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26 NULL, /* merge location configuration */ |
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27 }; |
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28 |
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29 |
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30 ngx_module_t ngx_http_write_filter_module = { |
509 | 31 NGX_MODULE_V1, |
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32 &ngx_http_write_filter_module_ctx, /* module context */ |
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33 NULL, /* module directives */ |
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34 NGX_HTTP_MODULE, /* module type */ |
541 | 35 NULL, /* init master */ |
681 | 36 NULL, /* init module */ |
541 | 37 NULL, /* init process */ |
38 NULL, /* init thread */ | |
39 NULL, /* exit thread */ | |
40 NULL, /* exit process */ | |
41 NULL, /* exit master */ | |
42 NGX_MODULE_V1_PADDING | |
41
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43 }; |
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44 |
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45 |
501 | 46 ngx_int_t |
47 ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
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48 { |
2907 | 49 off_t size, sent, nsent, limit; |
509 | 50 ngx_uint_t last, flush; |
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51 ngx_msec_t delay; |
509 | 52 ngx_chain_t *cl, *ln, **ll, *chain; |
53 ngx_connection_t *c; | |
54 ngx_http_core_loc_conf_t *clcf; | |
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55 |
527 | 56 c = r->connection; |
57 | |
583 | 58 if (c->error) { |
527 | 59 return NGX_ERROR; |
60 } | |
61 | |
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62 size = 0; |
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63 flush = 0; |
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64 last = 0; |
509 | 65 ll = &r->out; |
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66 |
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67 /* find the size, the flush point and the last link of the saved chain */ |
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68 |
509 | 69 for (cl = r->out; cl; cl = cl->next) { |
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70 ll = &cl->next; |
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71 |
667 | 72 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, c->log, 0, |
479 | 73 "write old buf t:%d f:%d %p, pos %p, size: %z " |
74 "file: %O, size: %z", | |
75 cl->buf->temporary, cl->buf->in_file, | |
76 cl->buf->start, cl->buf->pos, | |
77 cl->buf->last - cl->buf->pos, | |
78 cl->buf->file_pos, | |
79 cl->buf->file_last - cl->buf->file_pos); | |
80 | |
461 | 81 #if 1 |
82 if (ngx_buf_size(cl->buf) == 0 && !ngx_buf_special(cl->buf)) { | |
667 | 83 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
483 | 84 "zero size buf in writer " |
85 "t:%d r:%d f:%d %p %p-%p %p %O-%O", | |
86 cl->buf->temporary, | |
87 cl->buf->recycled, | |
88 cl->buf->in_file, | |
89 cl->buf->start, | |
90 cl->buf->pos, | |
91 cl->buf->last, | |
92 cl->buf->file, | |
93 cl->buf->file_pos, | |
94 cl->buf->file_last); | |
95 | |
461 | 96 ngx_debug_point(); |
489 | 97 return NGX_ERROR; |
461 | 98 } |
99 #endif | |
100 | |
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101 size += ngx_buf_size(cl->buf); |
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102 |
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103 if (cl->buf->flush || cl->buf->recycled) { |
499 | 104 flush = 1; |
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105 } |
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106 |
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107 if (cl->buf->last_buf) { |
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108 last = 1; |
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109 } |
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110 } |
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111 |
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112 /* add the new chain to the existent one */ |
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113 |
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114 for (ln = in; ln; ln = ln->next) { |
501 | 115 cl = ngx_alloc_chain_link(r->pool); |
116 if (cl == NULL) { | |
461 | 117 return NGX_ERROR; |
118 } | |
119 | |
120 cl->buf = ln->buf; | |
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121 *ll = cl; |
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122 ll = &cl->next; |
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123 |
667 | 124 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, c->log, 0, |
479 | 125 "write new buf t:%d f:%d %p, pos %p, size: %z " |
126 "file: %O, size: %z", | |
127 cl->buf->temporary, cl->buf->in_file, | |
128 cl->buf->start, cl->buf->pos, | |
129 cl->buf->last - cl->buf->pos, | |
130 cl->buf->file_pos, | |
131 cl->buf->file_last - cl->buf->file_pos); | |
132 | |
461 | 133 #if 1 |
134 if (ngx_buf_size(cl->buf) == 0 && !ngx_buf_special(cl->buf)) { | |
667 | 135 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
483 | 136 "zero size buf in writer " |
137 "t:%d r:%d f:%d %p %p-%p %p %O-%O", | |
138 cl->buf->temporary, | |
139 cl->buf->recycled, | |
140 cl->buf->in_file, | |
141 cl->buf->start, | |
142 cl->buf->pos, | |
143 cl->buf->last, | |
144 cl->buf->file, | |
145 cl->buf->file_pos, | |
146 cl->buf->file_last); | |
147 | |
461 | 148 ngx_debug_point(); |
489 | 149 return NGX_ERROR; |
461 | 150 } |
151 #endif | |
152 | |
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153 size += ngx_buf_size(cl->buf); |
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154 |
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155 if (cl->buf->flush || cl->buf->recycled) { |
499 | 156 flush = 1; |
153
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157 } |
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158 |
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159 if (cl->buf->last_buf) { |
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160 last = 1; |
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161 } |
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162 } |
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163 |
461 | 164 *ll = NULL; |
165 | |
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166 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, |
499 | 167 "http write filter: l:%d f:%d s:%O", last, flush, size); |
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168 |
509 | 169 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
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170 |
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171 /* |
509 | 172 * avoid the output if there are no last buf, no flush point, |
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173 * there are the incoming bufs and the size of all bufs |
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174 * is smaller than "postpone_output" directive |
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175 */ |
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176 |
499 | 177 if (!last && !flush && in && size < (off_t) clcf->postpone_output) { |
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178 return NGX_OK; |
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179 } |
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180 |
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181 if (c->write->delayed) { |
597 | 182 c->buffered |= NGX_HTTP_WRITE_BUFFERED; |
77
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183 return NGX_AGAIN; |
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184 } |
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185 |
597 | 186 if (size == 0 && !(c->buffered & NGX_LOWLEVEL_BUFFERED)) { |
483 | 187 if (last) { |
509 | 188 r->out = NULL; |
597 | 189 c->buffered &= ~NGX_HTTP_WRITE_BUFFERED; |
190 | |
483 | 191 return NGX_OK; |
192 } | |
461 | 193 |
499 | 194 if (flush) { |
501 | 195 do { |
509 | 196 r->out = r->out->next; |
597 | 197 } while (r->out); |
198 | |
199 c->buffered &= ~NGX_HTTP_WRITE_BUFFERED; | |
501 | 200 |
499 | 201 return NGX_OK; |
202 } | |
203 | |
667 | 204 ngx_log_error(NGX_LOG_ALERT, c->log, 0, |
483 | 205 "the http output chain is empty"); |
461 | 206 |
483 | 207 ngx_debug_point(); |
208 | |
209 return NGX_ERROR; | |
143
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210 } |
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211 |
635 | 212 if (r->limit_rate) { |
2907 | 213 limit = r->limit_rate * (ngx_time() - r->start_sec + 1) |
214 - (c->sent - clcf->limit_rate_after); | |
633 | 215 |
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216 if (limit <= 0) { |
635 | 217 c->write->delayed = 1; |
667 | 218 ngx_add_timer(c->write, |
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219 (ngx_msec_t) (- limit * 1000 / r->limit_rate + 1)); |
635 | 220 |
221 c->buffered |= NGX_HTTP_WRITE_BUFFERED; | |
222 | |
223 return NGX_AGAIN; | |
224 } | |
225 | |
1197 | 226 } else if (clcf->sendfile_max_chunk) { |
227 limit = clcf->sendfile_max_chunk; | |
228 | |
635 | 229 } else { |
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230 limit = 0; |
633 | 231 } |
232 | |
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233 sent = c->sent; |
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234 |
633 | 235 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
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236 "http write filter limit %O", limit); |
633 | 237 |
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238 chain = c->send_chain(c, r->out, limit); |
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239 |
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240 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, |
461 | 241 "http write filter %p", chain); |
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242 |
633 | 243 if (chain == NGX_CHAIN_ERROR) { |
244 c->error = 1; | |
245 return NGX_ERROR; | |
246 } | |
247 | |
1197 | 248 if (r->limit_rate) { |
2907 | 249 |
250 nsent = c->sent; | |
251 | |
252 if (clcf->limit_rate_after) { | |
253 | |
254 sent -= clcf->limit_rate_after; | |
255 if (sent < 0) { | |
256 sent = 0; | |
257 } | |
258 | |
259 nsent -= clcf->limit_rate_after; | |
260 if (nsent < 0) { | |
261 nsent = 0; | |
262 } | |
263 } | |
264 | |
265 delay = (ngx_msec_t) ((nsent - sent) * 1000 / r->limit_rate + 1); | |
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266 |
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267 if (delay > 0) { |
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268 c->write->delayed = 1; |
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269 ngx_add_timer(c->write, delay); |
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270 } |
1197 | 271 |
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272 } else if (c->write->ready |
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273 && clcf->sendfile_max_chunk |
1412 | 274 && (size_t) (c->sent - sent) |
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275 >= clcf->sendfile_max_chunk - 2 * ngx_pagesize) |
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276 { |
1197 | 277 c->write->delayed = 1; |
278 ngx_add_timer(c->write, 1); | |
362
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279 } |
361
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280 |
509 | 281 for (cl = r->out; cl && cl != chain; /* void */) { |
507 | 282 ln = cl; |
283 cl = cl->next; | |
284 ngx_free_chain(r->pool, ln); | |
285 } | |
286 | |
509 | 287 r->out = chain; |
399
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288 |
597 | 289 if (chain) { |
290 c->buffered |= NGX_HTTP_WRITE_BUFFERED; | |
291 return NGX_AGAIN; | |
292 } | |
293 | |
294 c->buffered &= ~NGX_HTTP_WRITE_BUFFERED; | |
295 | |
296 if ((c->buffered & NGX_LOWLEVEL_BUFFERED) && r->postponed == NULL) { | |
395
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297 return NGX_AGAIN; |
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298 } |
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299 |
399
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300 return NGX_OK; |
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301 } |
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302 |
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303 |
501 | 304 static ngx_int_t |
681 | 305 ngx_http_write_filter_init(ngx_conf_t *cf) |
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306 { |
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307 ngx_http_top_body_filter = ngx_http_write_filter; |
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308 |
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309 return NGX_OK; |
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310 } |