?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Update and clean Tomato RAF files
[tomato.git] / release / src / router / nginx / src / http / modules / ngx_http_autoindex_module.c
blobfb46d65d1cf06c84be11a2526f5403836eedac57
1
2 /*
3 * Copyright (C) Igor Sysoev
4 * Copyright (C) Nginx, Inc.
5 */
6
7
8 #include <ngx_config.h>
9 #include <ngx_core.h>
10 #include <ngx_http.h>
11
12
13 #if 0
14
15 typedef struct {
16 ngx_buf_t *buf;
17 size_t size;
18 ngx_pool_t *pool;
19 size_t alloc_size;
20 ngx_chain_t **last_out;
21 } ngx_http_autoindex_ctx_t;
22
23 #endif
24
25
26 typedef struct {
27 ngx_str_t name;
28 size_t utf_len;
29 size_t escape;
30 size_t escape_html;
31
32 unsigned dir:1;
33
34 time_t mtime;
35 off_t size;
36 } ngx_http_autoindex_entry_t;
37
38
39 typedef struct {
40 ngx_flag_t enable;
41 ngx_flag_t localtime;
42 ngx_flag_t exact_size;
43 } ngx_http_autoindex_loc_conf_t;
44
45
46 #define NGX_HTTP_AUTOINDEX_PREALLOCATE 50
47
48 #define NGX_HTTP_AUTOINDEX_NAME_LEN 50
49
50
51 static int ngx_libc_cdecl ngx_http_autoindex_cmp_entries(const void *one,
52 const void *two);
53 static ngx_int_t ngx_http_autoindex_error(ngx_http_request_t *r,
54 ngx_dir_t *dir, ngx_str_t *name);
55 static ngx_int_t ngx_http_autoindex_init(ngx_conf_t *cf);
56 static void *ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf);
57 static char *ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf,
58 void *parent, void *child);
59
60
61 static ngx_command_t ngx_http_autoindex_commands[] = {
62
63 { ngx_string("autoindex"),
64 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
65 ngx_conf_set_flag_slot,
66 NGX_HTTP_LOC_CONF_OFFSET,
67 offsetof(ngx_http_autoindex_loc_conf_t, enable),
68 NULL },
69
70 { ngx_string("autoindex_localtime"),
71 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
72 ngx_conf_set_flag_slot,
73 NGX_HTTP_LOC_CONF_OFFSET,
74 offsetof(ngx_http_autoindex_loc_conf_t, localtime),
75 NULL },
76
77 { ngx_string("autoindex_exact_size"),
78 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
79 ngx_conf_set_flag_slot,
80 NGX_HTTP_LOC_CONF_OFFSET,
81 offsetof(ngx_http_autoindex_loc_conf_t, exact_size),
82 NULL },
83
84 ngx_null_command
85 };
86
87
88 static ngx_http_module_t ngx_http_autoindex_module_ctx = {
89 NULL, /* preconfiguration */
90 ngx_http_autoindex_init, /* postconfiguration */
91
92 NULL, /* create main configuration */
93 NULL, /* init main configuration */
94
95 NULL, /* create server configuration */
96 NULL, /* merge server configuration */
97
98 ngx_http_autoindex_create_loc_conf, /* create location configuration */
99 ngx_http_autoindex_merge_loc_conf /* merge location configuration */
100 };
101
102
103 ngx_module_t ngx_http_autoindex_module = {
104 NGX_MODULE_V1,
105 &ngx_http_autoindex_module_ctx, /* module context */
106 ngx_http_autoindex_commands, /* module directives */
107 NGX_HTTP_MODULE, /* module type */
108 NULL, /* init master */
109 NULL, /* init module */
110 NULL, /* init process */
111 NULL, /* init thread */
112 NULL, /* exit thread */
113 NULL, /* exit process */
114 NULL, /* exit master */
115 NGX_MODULE_V1_PADDING
116 };
117
118
119 static u_char title[] =
120 "<html>" CRLF
121 "<head><title>Index of "
122 ;
123
124
125 static u_char header[] =
126 "</title></head>" CRLF
127 "<body bgcolor=\"white\">" CRLF
128 "<h1>Index of "
129 ;
130
131 static u_char tail[] =
132 "</body>" CRLF
133 "</html>" CRLF
134 ;
135
136
137 static ngx_int_t
138 ngx_http_autoindex_handler(ngx_http_request_t *r)
139 {
140 u_char *last, *filename, scale;
141 off_t length;
142 size_t len, char_len, escape_html, allocated, root;
143 ngx_tm_t tm;
144 ngx_err_t err;
145 ngx_buf_t *b;
146 ngx_int_t rc, size;
147 ngx_str_t path;
148 ngx_dir_t dir;
149 ngx_uint_t i, level, utf8;
150 ngx_pool_t *pool;
151 ngx_time_t *tp;
152 ngx_chain_t out;
153 ngx_array_t entries;
154 ngx_http_autoindex_entry_t *entry;
155 ngx_http_autoindex_loc_conf_t *alcf;
156
157 static char *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
158 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
159
160 if (r->uri.data[r->uri.len - 1] != '/') {
161 return NGX_DECLINED;
162 }
163
164 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) {
165 return NGX_DECLINED;
166 }
167
168 alcf = ngx_http_get_module_loc_conf(r, ngx_http_autoindex_module);
169
170 if (!alcf->enable) {
171 return NGX_DECLINED;
172 }
173
174 /* NGX_DIR_MASK_LEN is lesser than NGX_HTTP_AUTOINDEX_PREALLOCATE */
175
176 last = ngx_http_map_uri_to_path(r, &path, &root,
177 NGX_HTTP_AUTOINDEX_PREALLOCATE);
178 if (last == NULL) {
179 return NGX_HTTP_INTERNAL_SERVER_ERROR;
180 }
181
182 allocated = path.len;
183 path.len = last - path.data;
184 if (path.len > 1) {
185 path.len--;
186 }
187 path.data[path.len] = '\0';
188
189 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
190 "http autoindex: \"%s\"", path.data);
191
192 if (ngx_open_dir(&path, &dir) == NGX_ERROR) {
193 err = ngx_errno;
194
195 if (err == NGX_ENOENT
196 || err == NGX_ENOTDIR
197 || err == NGX_ENAMETOOLONG)
198 {
199 level = NGX_LOG_ERR;
200 rc = NGX_HTTP_NOT_FOUND;
201
202 } else if (err == NGX_EACCES) {
203 level = NGX_LOG_ERR;
204 rc = NGX_HTTP_FORBIDDEN;
205
206 } else {
207 level = NGX_LOG_CRIT;
208 rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
209 }
210
211 ngx_log_error(level, r->connection->log, err,
212 ngx_open_dir_n " \"%s\" failed", path.data);
213
214 return rc;
215 }
216
217 #if (NGX_SUPPRESS_WARN)
218
219 /* MSVC thinks 'entries' may be used without having been initialized */
220 ngx_memzero(&entries, sizeof(ngx_array_t));
221
222 #endif
223
224 /* TODO: pool should be temporary pool */
225 pool = r->pool;
226
227 if (ngx_array_init(&entries, pool, 40, sizeof(ngx_http_autoindex_entry_t))
228 != NGX_OK)
229 {
230 return ngx_http_autoindex_error(r, &dir, &path);
231 }
232
233 r->headers_out.status = NGX_HTTP_OK;
234 r->headers_out.content_type_len = sizeof("text/html") - 1;
235 ngx_str_set(&r->headers_out.content_type, "text/html");
236
237 rc = ngx_http_send_header(r);
238
239 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
240 if (ngx_close_dir(&dir) == NGX_ERROR) {
241 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
242 ngx_close_dir_n " \"%V\" failed", &path);
243 }
244
245 return rc;
246 }
247
248 filename = path.data;
249 filename[path.len] = '/';
250
251 if (r->headers_out.charset.len == 5
252 && ngx_strncasecmp(r->headers_out.charset.data, (u_char *) "utf-8", 5)
253 == 0)
254 {
255 utf8 = 1;
256
257 } else {
258 utf8 = 0;
259 }
260
261 for ( ;; ) {
262 ngx_set_errno(0);
263
264 if (ngx_read_dir(&dir) == NGX_ERROR) {
265 err = ngx_errno;
266
267 if (err != NGX_ENOMOREFILES) {
268 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
269 ngx_read_dir_n " \"%V\" failed", &path);
270 return ngx_http_autoindex_error(r, &dir, &path);
271 }
272
273 break;
274 }
275
276 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
277 "http autoindex file: \"%s\"", ngx_de_name(&dir));
278
279 len = ngx_de_namelen(&dir);
280
281 if (ngx_de_name(&dir)[0] == '.') {
282 continue;
283 }
284
285 if (!dir.valid_info) {
286
287 /* 1 byte for '/' and 1 byte for terminating '\0' */
288
289 if (path.len + 1 + len + 1 > allocated) {
290 allocated = path.len + 1 + len + 1
291 + NGX_HTTP_AUTOINDEX_PREALLOCATE;
292
293 filename = ngx_pnalloc(pool, allocated);
294 if (filename == NULL) {
295 return ngx_http_autoindex_error(r, &dir, &path);
296 }
297
298 last = ngx_cpystrn(filename, path.data, path.len + 1);
299 *last++ = '/';
300 }
301
302 ngx_cpystrn(last, ngx_de_name(&dir), len + 1);
303
304 if (ngx_de_info(filename, &dir) == NGX_FILE_ERROR) {
305 err = ngx_errno;
306
307 if (err != NGX_ENOENT) {
308 ngx_log_error(NGX_LOG_CRIT, r->connection->log, err,
309 ngx_de_info_n " \"%s\" failed", filename);
310
311 if (err == NGX_EACCES) {
312 continue;
313 }
314
315 return ngx_http_autoindex_error(r, &dir, &path);
316 }
317
318 if (ngx_de_link_info(filename, &dir) == NGX_FILE_ERROR) {
319 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
320 ngx_de_link_info_n " \"%s\" failed",
321 filename);
322 return ngx_http_autoindex_error(r, &dir, &path);
323 }
324 }
325 }
326
327 entry = ngx_array_push(&entries);
328 if (entry == NULL) {
329 return ngx_http_autoindex_error(r, &dir, &path);
330 }
331
332 entry->name.len = len;
333
334 entry->name.data = ngx_pnalloc(pool, len + 1);
335 if (entry->name.data == NULL) {
336 return ngx_http_autoindex_error(r, &dir, &path);
337 }
338
339 ngx_cpystrn(entry->name.data, ngx_de_name(&dir), len + 1);
340
341 entry->escape = 2 * ngx_escape_uri(NULL, ngx_de_name(&dir), len,
342 NGX_ESCAPE_URI_COMPONENT);
343
344 entry->escape_html = ngx_escape_html(NULL, entry->name.data,
345 entry->name.len);
346
347 if (utf8) {
348 entry->utf_len = ngx_utf8_length(entry->name.data, entry->name.len);
349 } else {
350 entry->utf_len = len;
351 }
352
353 entry->dir = ngx_de_is_dir(&dir);
354 entry->mtime = ngx_de_mtime(&dir);
355 entry->size = ngx_de_size(&dir);
356 }
357
358 if (ngx_close_dir(&dir) == NGX_ERROR) {
359 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
360 ngx_close_dir_n " \"%s\" failed", &path);
361 }
362
363 escape_html = ngx_escape_html(NULL, r->uri.data, r->uri.len);
364
365 len = sizeof(title) - 1
366 + r->uri.len + escape_html
367 + sizeof(header) - 1
368 + r->uri.len + escape_html
369 + sizeof("</h1>") - 1
370 + sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1
371 + sizeof("</pre><hr>") - 1
372 + sizeof(tail) - 1;
373
374 entry = entries.elts;
375 for (i = 0; i < entries.nelts; i++) {
376 len += sizeof("<a href=\"") - 1
377 + entry[i].name.len + entry[i].escape
378 + 1 /* 1 is for "/" */
379 + sizeof("\">") - 1
380 + entry[i].name.len - entry[i].utf_len
381 + entry[i].escape_html
382 + NGX_HTTP_AUTOINDEX_NAME_LEN + sizeof("&gt;") - 2
383 + sizeof("</a>") - 1
384 + sizeof(" 28-Sep-1970 12:00 ") - 1
385 + 20 /* the file size */
386 + 2;
387 }
388
389 b = ngx_create_temp_buf(r->pool, len);
390 if (b == NULL) {
391 return NGX_HTTP_INTERNAL_SERVER_ERROR;
392 }
393
394 if (entries.nelts > 1) {
395 ngx_qsort(entry, (size_t) entries.nelts,
396 sizeof(ngx_http_autoindex_entry_t),
397 ngx_http_autoindex_cmp_entries);
398 }
399
400 b->last = ngx_cpymem(b->last, title, sizeof(title) - 1);
401
402 if (escape_html) {
403 b->last = (u_char *) ngx_escape_html(b->last, r->uri.data, r->uri.len);
404 b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
405 b->last = (u_char *) ngx_escape_html(b->last, r->uri.data, r->uri.len);
406
407 } else {
408 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
409 b->last = ngx_cpymem(b->last, header, sizeof(header) - 1);
410 b->last = ngx_cpymem(b->last, r->uri.data, r->uri.len);
411 }
412
413 b->last = ngx_cpymem(b->last, "</h1>", sizeof("</h1>") - 1);
414
415 b->last = ngx_cpymem(b->last, "<hr><pre><a href=\"../\">../</a>" CRLF,
416 sizeof("<hr><pre><a href=\"../\">../</a>" CRLF) - 1);
417
418 tp = ngx_timeofday();
419
420 for (i = 0; i < entries.nelts; i++) {
421 b->last = ngx_cpymem(b->last, "<a href=\"", sizeof("<a href=\"") - 1);
422
423 if (entry[i].escape) {
424 ngx_escape_uri(b->last, entry[i].name.data, entry[i].name.len,
425 NGX_ESCAPE_URI_COMPONENT);
426
427 b->last += entry[i].name.len + entry[i].escape;
428
429 } else {
430 b->last = ngx_cpymem(b->last, entry[i].name.data,
431 entry[i].name.len);
432 }
433
434 if (entry[i].dir) {
435 *b->last++ = '/';
436 }
437
438 *b->last++ = '"';
439 *b->last++ = '>';
440
441 len = entry[i].utf_len;
442
443 if (entry[i].name.len != len) {
444 if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
445 char_len = NGX_HTTP_AUTOINDEX_NAME_LEN - 3 + 1;
446
447 } else {
448 char_len = NGX_HTTP_AUTOINDEX_NAME_LEN + 1;
449 }
450
451 last = b->last;
452 b->last = ngx_utf8_cpystrn(b->last, entry[i].name.data,
453 char_len, entry[i].name.len + 1);
454
455 if (entry[i].escape_html) {
456 b->last = (u_char *) ngx_escape_html(last, entry[i].name.data,
457 b->last - last);
458 }
459
460 last = b->last;
461
462 } else {
463 if (entry[i].escape_html) {
464 if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
465 char_len = NGX_HTTP_AUTOINDEX_NAME_LEN - 3;
466
467 } else {
468 char_len = len;
469 }
470
471 b->last = (u_char *) ngx_escape_html(b->last,
472 entry[i].name.data, char_len);
473 last = b->last;
474
475 } else {
476 b->last = ngx_cpystrn(b->last, entry[i].name.data,
477 NGX_HTTP_AUTOINDEX_NAME_LEN + 1);
478 last = b->last - 3;
479 }
480 }
481
482 if (len > NGX_HTTP_AUTOINDEX_NAME_LEN) {
483 b->last = ngx_cpymem(last, "..&gt;</a>", sizeof("..&gt;</a>") - 1);
484
485 } else {
486 if (entry[i].dir && NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) {
487 *b->last++ = '/';
488 len++;
489 }
490
491 b->last = ngx_cpymem(b->last, "</a>", sizeof("</a>") - 1);
492
493 if (NGX_HTTP_AUTOINDEX_NAME_LEN - len > 0) {
494 ngx_memset(b->last, ' ', NGX_HTTP_AUTOINDEX_NAME_LEN - len);
495 b->last += NGX_HTTP_AUTOINDEX_NAME_LEN - len;
496 }
497 }
498
499 *b->last++ = ' ';
500
501 ngx_gmtime(entry[i].mtime + tp->gmtoff * 60 * alcf->localtime, &tm);
502
503 b->last = ngx_sprintf(b->last, "%02d-%s-%d %02d:%02d ",
504 tm.ngx_tm_mday,
505 months[tm.ngx_tm_mon - 1],
506 tm.ngx_tm_year,
507 tm.ngx_tm_hour,
508 tm.ngx_tm_min);
509
510 if (alcf->exact_size) {
511 if (entry[i].dir) {
512 b->last = ngx_cpymem(b->last, " -",
513 sizeof(" -") - 1);
514 } else {
515 b->last = ngx_sprintf(b->last, "%19O", entry[i].size);
516 }
517
518 } else {
519 if (entry[i].dir) {
520 b->last = ngx_cpymem(b->last, " -",
521 sizeof(" -") - 1);
522
523 } else {
524 length = entry[i].size;
525
526 if (length > 1024 * 1024 * 1024 - 1) {
527 size = (ngx_int_t) (length / (1024 * 1024 * 1024));
528 if ((length % (1024 * 1024 * 1024))
529 > (1024 * 1024 * 1024 / 2 - 1))
530 {
531 size++;
532 }
533 scale = 'G';
534
535 } else if (length > 1024 * 1024 - 1) {
536 size = (ngx_int_t) (length / (1024 * 1024));
537 if ((length % (1024 * 1024)) > (1024 * 1024 / 2 - 1)) {
538 size++;
539 }
540 scale = 'M';
541
542 } else if (length > 9999) {
543 size = (ngx_int_t) (length / 1024);
544 if (length % 1024 > 511) {
545 size++;
546 }
547 scale = 'K';
548
549 } else {
550 size = (ngx_int_t) length;
551 scale = '\0';
552 }
553
554 if (scale) {
555 b->last = ngx_sprintf(b->last, "%6i%c", size, scale);
556
557 } else {
558 b->last = ngx_sprintf(b->last, " %6i", size);
559 }
560 }
561 }
562
563 *b->last++ = CR;
564 *b->last++ = LF;
565 }
566
567 /* TODO: free temporary pool */
568
569 b->last = ngx_cpymem(b->last, "</pre><hr>", sizeof("</pre><hr>") - 1);
570
571 b->last = ngx_cpymem(b->last, tail, sizeof(tail) - 1);
572
573 if (r == r->main) {
574 b->last_buf = 1;
575 }
576
577 b->last_in_chain = 1;
578
579 out.buf = b;
580 out.next = NULL;
581
582 return ngx_http_output_filter(r, &out);
583 }
584
585
586 static int ngx_libc_cdecl
587 ngx_http_autoindex_cmp_entries(const void *one, const void *two)
588 {
589 ngx_http_autoindex_entry_t *first = (ngx_http_autoindex_entry_t *) one;
590 ngx_http_autoindex_entry_t *second = (ngx_http_autoindex_entry_t *) two;
591
592 if (first->dir && !second->dir) {
593 /* move the directories to the start */
594 return -1;
595 }
596
597 if (!first->dir && second->dir) {
598 /* move the directories to the start */
599 return 1;
600 }
601
602 return (int) ngx_strcmp(first->name.data, second->name.data);
603 }
604
605
606 #if 0
607
608 static ngx_buf_t *
609 ngx_http_autoindex_alloc(ngx_http_autoindex_ctx_t *ctx, size_t size)
610 {
611 ngx_chain_t *cl;
612
613 if (ctx->buf) {
614
615 if ((size_t) (ctx->buf->end - ctx->buf->last) >= size) {
616 return ctx->buf;
617 }
618
619 ctx->size += ctx->buf->last - ctx->buf->pos;
620 }
621
622 ctx->buf = ngx_create_temp_buf(ctx->pool, ctx->alloc_size);
623 if (ctx->buf == NULL) {
624 return NULL;
625 }
626
627 cl = ngx_alloc_chain_link(ctx->pool);
628 if (cl == NULL) {
629 return NULL;
630 }
631
632 cl->buf = ctx->buf;
633 cl->next = NULL;
634
635 *ctx->last_out = cl;
636 ctx->last_out = &cl->next;
637
638 return ctx->buf;
639 }
640
641 #endif
642
643
644 static ngx_int_t
645 ngx_http_autoindex_error(ngx_http_request_t *r, ngx_dir_t *dir, ngx_str_t *name)
646 {
647 if (ngx_close_dir(dir) == NGX_ERROR) {
648 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
649 ngx_close_dir_n " \"%V\" failed", name);
650 }
651
652 return NGX_HTTP_INTERNAL_SERVER_ERROR;
653 }
654
655
656 static void *
657 ngx_http_autoindex_create_loc_conf(ngx_conf_t *cf)
658 {
659 ngx_http_autoindex_loc_conf_t *conf;
660
661 conf = ngx_palloc(cf->pool, sizeof(ngx_http_autoindex_loc_conf_t));
662 if (conf == NULL) {
663 return NULL;
664 }
665
666 conf->enable = NGX_CONF_UNSET;
667 conf->localtime = NGX_CONF_UNSET;
668 conf->exact_size = NGX_CONF_UNSET;
669
670 return conf;
671 }
672
673
674 static char *
675 ngx_http_autoindex_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
676 {
677 ngx_http_autoindex_loc_conf_t *prev = parent;
678 ngx_http_autoindex_loc_conf_t *conf = child;
679
680 ngx_conf_merge_value(conf->enable, prev->enable, 0);
681 ngx_conf_merge_value(conf->localtime, prev->localtime, 0);
682 ngx_conf_merge_value(conf->exact_size, prev->exact_size, 1);
683
684 return NGX_CONF_OK;
685 }
686
687
688 static ngx_int_t
689 ngx_http_autoindex_init(ngx_conf_t *cf)
690 {
691 ngx_http_handler_pt *h;
692 ngx_http_core_main_conf_t *cmcf;
693
694 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
695
696 h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
697 if (h == NULL) {
698 return NGX_ERROR;
699 }
700
701 *h = ngx_http_autoindex_handler;
702
703 return NGX_OK;
704 }
Tomato firmware and modifications.