src/mod_dirlisting.c

   1 #include "first.h"
   2
   3 #include "base.h"
   4 #include "log.h"
   5 #include "buffer.h"
   6
   7 #include "plugin.h"
   8
   9 #include "response.h"
  10 #include "stat_cache.h"
  11 #include "stream.h"
  12
  13 #include <ctype.h>
  14 #include <stdlib.h>
  15 #include <string.h>
  16 #include <dirent.h>
  17 #include <assert.h>
  18 #include <errno.h>
  19 #include <fcntl.h>
  20 #include <stdio.h>
  21 #include <unistd.h>
  22 #include <time.h>
  23
  24 /**
  25  * this is a dirlisting for a lighttpd plugin
  26  */
  27
  28 #ifdef HAVE_ATTR_ATTRIBUTES_H
  29 #include <attr/attributes.h>
  30 #endif
  31
  32 #ifdef HAVE_SYS_EXTATTR_H
  33 #include <sys/extattr.h>
  34 #endif
  35
  36 /* plugin config for all request/connections */
  37
  38 typedef struct {
  39 #ifdef HAVE_PCRE_H
  40         pcre *regex;
  41 #endif
  42         buffer *string;
  43 } excludes;
  44
  45 typedef struct {
  46         excludes **ptr;
  47
  48         size_t used;
  49         size_t size;
  50 } excludes_buffer;
  51
  52 typedef struct {
  53         unsigned short dir_listing;
  54         unsigned short hide_dot_files;
  55         unsigned short show_readme;
  56         unsigned short hide_readme_file;
  57         unsigned short encode_readme;
  58         unsigned short show_header;
  59         unsigned short hide_header_file;
  60         unsigned short encode_header;
  61         unsigned short auto_layout;
  62
  63         excludes_buffer *excludes;
  64
  65         buffer *external_css;
  66         buffer *external_js;
  67         buffer *encoding;
  68         buffer *set_footer;
  69 } plugin_config;
  70
  71 typedef struct {
  72         PLUGIN_DATA;
  73
  74         buffer *tmp_buf;
  75         buffer *content_charset;
  76
  77         plugin_config **config_storage;
  78
  79         plugin_config conf;
  80 } plugin_data;
  81
  82 static excludes_buffer *excludes_buffer_init(void) {
  83         excludes_buffer *exb;
  84
  85         exb = calloc(1, sizeof(*exb));
  86
  87         return exb;
  88 }
  89
  90 static int excludes_buffer_append(excludes_buffer *exb, buffer *string) {
  91 #ifdef HAVE_PCRE_H
  92         size_t i;
  93         const char *errptr;
  94         int erroff;
  95
  96         if (!string) return -1;
  97
  98         if (exb->size == 0) {
  99                 exb->size = 4;
 100                 exb->used = 0;
 101
 102                 exb->ptr = malloc(exb->size * sizeof(*exb->ptr));
 103
 104                 for(i = 0; i < exb->size ; i++) {
 105                         exb->ptr[i] = calloc(1, sizeof(**exb->ptr));
 106                 }
 107         } else if (exb->used == exb->size) {
 108                 exb->size += 4;
 109
 110                 exb->ptr = realloc(exb->ptr, exb->size * sizeof(*exb->ptr));
 111
 112                 for(i = exb->used; i < exb->size; i++) {
 113                         exb->ptr[i] = calloc(1, sizeof(**exb->ptr));
 114                 }
 115         }
 116
 117
 118         if (NULL == (exb->ptr[exb->used]->regex = pcre_compile(string->ptr, 0,
 119                                                     &errptr, &erroff, NULL))) {
 120                 return -1;
 121         }
 122
 123         exb->ptr[exb->used]->string = buffer_init();
 124         buffer_copy_buffer(exb->ptr[exb->used]->string, string);
 125
 126         exb->used++;
 127
 128         return 0;
 129 #else
 130         UNUSED(exb);
 131         UNUSED(string);
 132
 133         return -1;
 134 #endif
 135 }
 136
 137 static void excludes_buffer_free(excludes_buffer *exb) {
 138 #ifdef HAVE_PCRE_H
 139         size_t i;
 140
 141         for (i = 0; i < exb->size; i++) {
 142                 if (exb->ptr[i]->regex) pcre_free(exb->ptr[i]->regex);
 143                 if (exb->ptr[i]->string) buffer_free(exb->ptr[i]->string);
 144                 free(exb->ptr[i]);
 145         }
 146
 147         if (exb->ptr) free(exb->ptr);
 148 #endif
 149
 150         free(exb);
 151 }
 152
 153 /* init the plugin data */
 154 INIT_FUNC(mod_dirlisting_init) {
 155         plugin_data *p;
 156
 157         p = calloc(1, sizeof(*p));
 158
 159         p->tmp_buf = buffer_init();
 160         p->content_charset = buffer_init();
 161
 162         return p;
 163 }
 164
 165 /* detroy the plugin data */
 166 FREE_FUNC(mod_dirlisting_free) {
 167         plugin_data *p = p_d;
 168
 169         UNUSED(srv);
 170
 171         if (!p) return HANDLER_GO_ON;
 172
 173         if (p->config_storage) {
 174                 size_t i;
 175                 for (i = 0; i < srv->config_context->used; i++) {
 176                         plugin_config *s = p->config_storage[i];
 177
 178                         if (!s) continue;
 179
 180                         excludes_buffer_free(s->excludes);
 181                         buffer_free(s->external_css);
 182                         buffer_free(s->external_js);
 183                         buffer_free(s->encoding);
 184                         buffer_free(s->set_footer);
 185
 186                         free(s);
 187                 }
 188                 free(p->config_storage);
 189         }
 190
 191         buffer_free(p->tmp_buf);
 192         buffer_free(p->content_charset);
 193
 194         free(p);
 195
 196         return HANDLER_GO_ON;
 197 }
 198
 199 /* handle plugin config and check values */
 200
 201 #define CONFIG_EXCLUDE          "dir-listing.exclude"
 202 #define CONFIG_ACTIVATE         "dir-listing.activate"
 203 #define CONFIG_HIDE_DOTFILES    "dir-listing.hide-dotfiles"
 204 #define CONFIG_EXTERNAL_CSS     "dir-listing.external-css"
 205 #define CONFIG_EXTERNAL_JS      "dir-listing.external-js"
 206 #define CONFIG_ENCODING         "dir-listing.encoding"
 207 #define CONFIG_SHOW_README      "dir-listing.show-readme"
 208 #define CONFIG_HIDE_README_FILE "dir-listing.hide-readme-file"
 209 #define CONFIG_SHOW_HEADER      "dir-listing.show-header"
 210 #define CONFIG_HIDE_HEADER_FILE "dir-listing.hide-header-file"
 211 #define CONFIG_DIR_LISTING      "server.dir-listing"
 212 #define CONFIG_SET_FOOTER       "dir-listing.set-footer"
 213 #define CONFIG_ENCODE_README    "dir-listing.encode-readme"
 214 #define CONFIG_ENCODE_HEADER    "dir-listing.encode-header"
 215 #define CONFIG_AUTO_LAYOUT      "dir-listing.auto-layout"
 216
 217
 218 SETDEFAULTS_FUNC(mod_dirlisting_set_defaults) {
 219         plugin_data *p = p_d;
 220         size_t i = 0;
 221
 222         config_values_t cv[] = {
 223                 { CONFIG_EXCLUDE,          NULL, T_CONFIG_LOCAL, T_CONFIG_SCOPE_CONNECTION },   /* 0 */
 224                 { CONFIG_ACTIVATE,         NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 1 */
 225                 { CONFIG_HIDE_DOTFILES,    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 2 */
 226                 { CONFIG_EXTERNAL_CSS,     NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 3 */
 227                 { CONFIG_ENCODING,         NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 4 */
 228                 { CONFIG_SHOW_README,      NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 5 */
 229                 { CONFIG_HIDE_README_FILE, NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 6 */
 230                 { CONFIG_SHOW_HEADER,      NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 7 */
 231                 { CONFIG_HIDE_HEADER_FILE, NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 8 */
 232                 { CONFIG_DIR_LISTING,      NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 9 */
 233                 { CONFIG_SET_FOOTER,       NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 10 */
 234                 { CONFIG_ENCODE_README,    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 11 */
 235                 { CONFIG_ENCODE_HEADER,    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 12 */
 236                 { CONFIG_AUTO_LAYOUT,      NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 13 */
 237                 { CONFIG_EXTERNAL_JS,      NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 14 */
 238
 239                 { NULL,                          NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
 240         };
 241
 242         if (!p) return HANDLER_ERROR;
 243
 244         p->config_storage = calloc(1, srv->config_context->used * sizeof(plugin_config *));
 245
 246         for (i = 0; i < srv->config_context->used; i++) {
 247                 data_config const* config = (data_config const*)srv->config_context->data[i];
 248                 plugin_config *s;
 249                 data_unset *du_excludes;
 250
 251                 s = calloc(1, sizeof(plugin_config));
 252                 s->excludes = excludes_buffer_init();
 253                 s->dir_listing = 0;
 254                 s->external_css = buffer_init();
 255                 s->external_js = buffer_init();
 256                 s->hide_dot_files = 1;
 257                 s->show_readme = 0;
 258                 s->hide_readme_file = 0;
 259                 s->show_header = 0;
 260                 s->hide_header_file = 0;
 261                 s->encode_readme = 1;
 262                 s->encode_header = 1;
 263                 s->auto_layout = 1;
 264
 265                 s->encoding = buffer_init();
 266                 s->set_footer = buffer_init();
 267
 268                 cv[0].destination = s->excludes;
 269                 cv[1].destination = &(s->dir_listing);
 270                 cv[2].destination = &(s->hide_dot_files);
 271                 cv[3].destination = s->external_css;
 272                 cv[4].destination = s->encoding;
 273                 cv[5].destination = &(s->show_readme);
 274                 cv[6].destination = &(s->hide_readme_file);
 275                 cv[7].destination = &(s->show_header);
 276                 cv[8].destination = &(s->hide_header_file);
 277                 cv[9].destination = &(s->dir_listing); /* old name */
 278                 cv[10].destination = s->set_footer;
 279                 cv[11].destination = &(s->encode_readme);
 280                 cv[12].destination = &(s->encode_header);
 281                 cv[13].destination = &(s->auto_layout);
 282                 cv[14].destination = s->external_js;
 283
 284                 p->config_storage[i] = s;
 285
 286                 if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) {
 287                         return HANDLER_ERROR;
 288                 }
 289
 290                 if (NULL != (du_excludes = array_get_element(config->value, CONFIG_EXCLUDE))) {
 291                         array *excludes_list;
 292                         size_t j;
 293
 294                         if (du_excludes->type != TYPE_ARRAY) {
 295                                 log_error_write(srv, __FILE__, __LINE__, "sss",
 296                                         "unexpected type for key: ", CONFIG_EXCLUDE, "array of strings");
 297                                 return HANDLER_ERROR;
 298                         }
 299
 300                         excludes_list = ((data_array*)du_excludes)->value;
 301
 302 #ifndef HAVE_PCRE_H
 303                         if (excludes_list->used > 0) {
 304                                 log_error_write(srv, __FILE__, __LINE__, "sss",
 305                                         "pcre support is missing for: ", CONFIG_EXCLUDE, ", please install libpcre and the headers");
 306                                 return HANDLER_ERROR;
 307                         }
 308 #else
 309                         for (j = 0; j < excludes_list->used; j++) {
 310                                 data_unset *du_exclude = excludes_list->data[j];
 311
 312                                 if (du_exclude->type != TYPE_STRING) {
 313                                         log_error_write(srv, __FILE__, __LINE__, "sssbs",
 314                                                 "unexpected type for key: ", CONFIG_EXCLUDE, "[",
 315                                                 du_exclude->key, "](string)");
 316                                         return HANDLER_ERROR;
 317                                 }
 318
 319                                 if (0 != excludes_buffer_append(s->excludes, ((data_string*)(du_exclude))->value)) {
 320                                         log_error_write(srv, __FILE__, __LINE__, "sb",
 321                                                 "pcre-compile failed for", ((data_string*)(du_exclude))->value);
 322                                         return HANDLER_ERROR;
 323                                 }
 324                         }
 325 #endif
 326                 }
 327         }
 328
 329         return HANDLER_GO_ON;
 330 }
 331
 332 #define PATCH(x) \
 333         p->conf.x = s->x;
 334 static int mod_dirlisting_patch_connection(server *srv, connection *con, plugin_data *p) {
 335         size_t i, j;
 336         plugin_config *s = p->config_storage[0];
 337
 338         PATCH(dir_listing);
 339         PATCH(external_css);
 340         PATCH(external_js);
 341         PATCH(hide_dot_files);
 342         PATCH(encoding);
 343         PATCH(show_readme);
 344         PATCH(hide_readme_file);
 345         PATCH(show_header);
 346         PATCH(hide_header_file);
 347         PATCH(excludes);
 348         PATCH(set_footer);
 349         PATCH(encode_readme);
 350         PATCH(encode_header);
 351         PATCH(auto_layout);
 352
 353         /* skip the first, the global context */
 354         for (i = 1; i < srv->config_context->used; i++) {
 355                 data_config *dc = (data_config *)srv->config_context->data[i];
 356                 s = p->config_storage[i];
 357
 358                 /* condition didn't match */
 359                 if (!config_check_cond(srv, con, dc)) continue;
 360
 361                 /* merge config */
 362                 for (j = 0; j < dc->value->used; j++) {
 363                         data_unset *du = dc->value->data[j];
 364
 365                         if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ACTIVATE)) ||
 366                             buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_DIR_LISTING))) {
 367                                 PATCH(dir_listing);
 368                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_HIDE_DOTFILES))) {
 369                                 PATCH(hide_dot_files);
 370                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_EXTERNAL_CSS))) {
 371                                 PATCH(external_css);
 372                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_EXTERNAL_JS))) {
 373                                 PATCH(external_js);
 374                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ENCODING))) {
 375                                 PATCH(encoding);
 376                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_SHOW_README))) {
 377                                 PATCH(show_readme);
 378                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_HIDE_README_FILE))) {
 379                                 PATCH(hide_readme_file);
 380                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_SHOW_HEADER))) {
 381                                 PATCH(show_header);
 382                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_HIDE_HEADER_FILE))) {
 383                                 PATCH(hide_header_file);
 384                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_SET_FOOTER))) {
 385                                 PATCH(set_footer);
 386                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_EXCLUDE))) {
 387                                 PATCH(excludes);
 388                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ENCODE_README))) {
 389                                 PATCH(encode_readme);
 390                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ENCODE_HEADER))) {
 391                                 PATCH(encode_header);
 392                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_AUTO_LAYOUT))) {
 393                                 PATCH(auto_layout);
 394                         }
 395                 }
 396         }
 397
 398         return 0;
 399 }
 400 #undef PATCH
 401
 402 typedef struct {
 403         size_t  namelen;
 404         time_t  mtime;
 405         off_t   size;
 406 } dirls_entry_t;
 407
 408 typedef struct {
 409         dirls_entry_t **ent;
 410         size_t used;
 411         size_t size;
 412 } dirls_list_t;
 413
 414 #define DIRLIST_ENT_NAME(ent)   ((char*)(ent) + sizeof(dirls_entry_t))
 415 #define DIRLIST_BLOB_SIZE               16
 416
 417 /* simple combsort algorithm */
 418 static void http_dirls_sort(dirls_entry_t **ent, int num) {
 419         int gap = num;
 420         int i, j;
 421         int swapped;
 422         dirls_entry_t *tmp;
 423
 424         do {
 425                 gap = (gap * 10) / 13;
 426                 if (gap == 9 || gap == 10)
 427                         gap = 11;
 428                 if (gap < 1)
 429                         gap = 1;
 430                 swapped = 0;
 431
 432                 for (i = 0; i < num - gap; i++) {
 433                         j = i + gap;
 434                         if (strcmp(DIRLIST_ENT_NAME(ent[i]), DIRLIST_ENT_NAME(ent[j])) > 0) {
 435                                 tmp = ent[i];
 436                                 ent[i] = ent[j];
 437                                 ent[j] = tmp;
 438                                 swapped = 1;
 439                         }
 440                 }
 441
 442         } while (gap > 1 || swapped);
 443 }
 444
 445 /* buffer must be able to hold "999.9K"
 446  * conversion is simple but not perfect
 447  */
 448 static int http_list_directory_sizefmt(char *buf, size_t bufsz, off_t size) {
 449         const char unit[] = " KMGTPE";  /* Kilo, Mega, Giga, Tera, Peta, Exa */
 450         const char *u = unit;           /* u will always increment at least once */
 451         int remain;
 452         size_t buflen;
 453
 454         if (size < 100)
 455                 size += 99;
 456         if (size < 100)
 457                 size = 0;
 458
 459         while (1) {
 460                 remain = (int) size & 1023;
 461                 size >>= 10;
 462                 u++;
 463                 if ((size & (~0 ^ 1023)) == 0)
 464                         break;
 465         }
 466
 467         remain /= 100;
 468         if (remain > 9)
 469                 remain = 9;
 470         if (size > 999) {
 471                 size   = 0;
 472                 remain = 9;
 473                 u++;
 474         }
 475
 476         li_itostrn(buf, bufsz, size);
 477         buflen = strlen(buf);
 478         if (buflen + 3 >= bufsz) return buflen;
 479         buf[buflen+0] = '.';
 480         buf[buflen+1] = remain + '0';
 481         buf[buflen+2] = *u;
 482         buf[buflen+3] = '\0';
 483
 484         return buflen + 3;
 485 }
 486
 487 /* don't want to block when open()ing a fifo */
 488 #if defined(O_NONBLOCK)
 489 # define FIFO_NONBLOCK O_NONBLOCK
 490 #else
 491 # define FIFO_NONBLOCK 0
 492 #endif
 493
 494 static void http_list_directory_include_file(buffer *out, buffer *path, const char *classname, int encode) {
 495         int fd = open(path->ptr, O_RDONLY | FIFO_NONBLOCK);
 496         ssize_t rd;
 497         char buf[8192];
 498
 499         if (-1 == fd) return;
 500
 501         if (encode) {
 502                 buffer_append_string_len(out, CONST_STR_LEN("<pre class=\""));
 503                 buffer_append_string(out, classname);
 504                 buffer_append_string_len(out, CONST_STR_LEN("\">"));
 505         }
 506
 507         while ((rd = read(fd, buf, sizeof(buf))) > 0) {
 508                 if (encode) {
 509                         buffer_append_string_encoded(out, buf, (size_t)rd, ENCODING_MINIMAL_XML);
 510                 } else {
 511                         buffer_append_string_len(out, buf, (size_t)rd);
 512                 }
 513         }
 514         close(fd);
 515
 516         if (encode) {
 517                 buffer_append_string_len(out, CONST_STR_LEN("</pre>"));
 518         }
 519 }
 520
 521 /* portions copied from mod_status
 522  * modified and specialized for stable dirlist sorting by name */
 523 static const char js_simple_table_resort[] = \
 524 "var click_column;\n" \
 525 "var name_column = 0;\n" \
 526 "var date_column = 1;\n" \
 527 "var size_column = 2;\n" \
 528 "var type_column = 3;\n" \
 529 "var prev_span = null;\n" \
 530 "\n" \
 531 "if (typeof(String.prototype.localeCompare) === 'undefined') {\n" \
 532 " String.prototype.localeCompare = function(str, locale, options) {\n" \
 533 "   return ((this == str) ? 0 : ((this > str) ? 1 : -1));\n" \
 534 " };\n" \
 535 "}\n" \
 536 "\n" \
 537 "if (typeof(String.prototype.toLocaleUpperCase) === 'undefined') {\n" \
 538 " String.prototype.toLocaleUpperCase = function() {\n" \
 539 "  return this.toUpperCase();\n" \
 540 " };\n" \
 541 "}\n" \
 542 "\n" \
 543 "function get_inner_text(el) {\n" \
 544 " if((typeof el == 'string')||(typeof el == 'undefined'))\n" \
 545 "  return el;\n" \
 546 " if(el.innerText)\n" \
 547 "  return el.innerText;\n" \
 548 " else {\n" \
 549 "  var str = \"\";\n" \
 550 "  var cs = el.childNodes;\n" \
 551 "  var l = cs.length;\n" \
 552 "  for (i=0;i<l;i++) {\n" \
 553 "   if (cs[i].nodeType==1) str += get_inner_text(cs[i]);\n" \
 554 "   else if (cs[i].nodeType==3) str += cs[i].nodeValue;\n" \
 555 "  }\n" \
 556 " }\n" \
 557 " return str;\n" \
 558 "}\n" \
 559 "\n" \
 560 "function isdigit(c) {\n" \
 561 " return (c >= '0' && c <= '9');\n" \
 562 "}\n" \
 563 "\n" \
 564 "function unit_multiplier(unit) {\n" \
 565 " return (unit=='K') ? 1000\n" \
 566 "      : (unit=='M') ? 1000000\n" \
 567 "      : (unit=='G') ? 1000000000\n" \
 568 "      : (unit=='T') ? 1000000000000\n" \
 569 "      : (unit=='P') ? 1000000000000000\n" \
 570 "      : (unit=='E') ? 1000000000000000000 : 1;\n" \
 571 "}\n" \
 572 "\n" \
 573 "function sortfn_then_by_name(a,b,sort_column) {\n" \
 574 " if (sort_column == name_column || sort_column == type_column) {\n" \
 575 "  var ad = (a.cells[type_column].innerHTML === 'Directory');\n" \
 576 "  var bd = (b.cells[type_column].innerHTML === 'Directory');\n" \
 577 "  if (ad != bd) return (ad ? -1 : 1);\n" \
 578 " }\n" \
 579 " var at = get_inner_text(a.cells[sort_column]);\n" \
 580 " var bt = get_inner_text(b.cells[sort_column]);\n" \
 581 " var cmp;\n" \
 582 " if (a.cells[sort_column].className == 'int') {\n" \
 583 "  cmp = parseInt(at)-parseInt(bt);\n" \
 584 " } else if (sort_column == date_column) {\n" \
 585 "  cmp = Date.parse(at.replace(/-/g, '/'))\n" \
 586 "      - Date.parse(bt.replace(/-/g, '/'));\n" \
 587 "  var ad = isdigit(at.substr(0,1));\n" \
 588 "  var bd = isdigit(bt.substr(0,1));\n" \
 589 "  if (ad != bd) return (!ad ? -1 : 1);\n" \
 590 " } else if (sort_column == size_column) {\n" \
 591 "  var ai = parseInt(at, 10) * unit_multiplier(at.substr(-1,1));\n" \
 592 "  var bi = parseInt(bt, 10) * unit_multiplier(bt.substr(-1,1));\n" \
 593 "  if (at.substr(0,1) == '-') ai = -1;\n" \
 594 "  if (bt.substr(0,1) == '-') bi = -1;\n" \
 595 "  cmp = ai - bi;\n" \
 596 " } else {\n" \
 597 "  cmp = at.toLocaleUpperCase().localeCompare(bt.toLocaleUpperCase());\n" \
 598 "  if (0 != cmp) return cmp;\n" \
 599 "  cmp = at.localeCompare(bt);\n" \
 600 " }\n" \
 601 " if (0 != cmp || sort_column == name_column) return cmp;\n" \
 602 " return sortfn_then_by_name(a,b,name_column);\n" \
 603 "}\n" \
 604 "\n" \
 605 "function sortfn(a,b) {\n" \
 606 " return sortfn_then_by_name(a,b,click_column);\n" \
 607 "}\n" \
 608 "\n" \
 609 "function resort(lnk) {\n" \
 610 " var span = lnk.childNodes[1];\n" \
 611 " var table = lnk.parentNode.parentNode.parentNode.parentNode;\n" \
 612 " var rows = new Array();\n" \
 613 " for (j=1;j<table.rows.length;j++)\n" \
 614 "  rows[j-1] = table.rows[j];\n" \
 615 " click_column = lnk.parentNode.cellIndex;\n" \
 616 " rows.sort(sortfn);\n" \
 617 "\n" \
 618 " if (prev_span != null) prev_span.innerHTML = '';\n" \
 619 " if (span.getAttribute('sortdir')=='down') {\n" \
 620 "  span.innerHTML = '&uarr;';\n" \
 621 "  span.setAttribute('sortdir','up');\n" \
 622 "  rows.reverse();\n" \
 623 " } else {\n" \
 624 "  span.innerHTML = '&darr;';\n" \
 625 "  span.setAttribute('sortdir','down');\n" \
 626 " }\n" \
 627 " for (i=0;i<rows.length;i++)\n" \
 628 "  table.tBodies[0].appendChild(rows[i]);\n" \
 629 " prev_span = span;\n" \
 630 "}\n";
 631
 632 /* portions copied from mod_dirlist (lighttpd2) */
 633 static const char js_simple_table_init_sort[] = \
 634 "\n" \
 635 "function init_sort(init_sort_column, ascending) {\n" \
 636 " var tables = document.getElementsByTagName(\"table\");\n" \
 637 " for (var i = 0; i < tables.length; i++) {\n" \
 638 "  var table = tables[i];\n" \
 639 "  //var c = table.getAttribute(\"class\")\n" \
 640 "  //if (-1 != c.split(\" \").indexOf(\"sort\")) {\n" \
 641 "   var row = table.rows[0].cells;\n" \
 642 "   for (var j = 0; j < row.length; j++) {\n" \
 643 "    var n = row[j];\n" \
 644 "    if (n.childNodes.length == 1 && n.childNodes[0].nodeType == 3) {\n" \
 645 "     var link = document.createElement(\"a\");\n" \
 646 "     var title = n.childNodes[0].nodeValue.replace(/:$/, \"\");\n" \
 647 "     link.appendChild(document.createTextNode(title));\n" \
 648 "     link.setAttribute(\"href\", \"#\");\n" \
 649 "     link.setAttribute(\"class\", \"sortheader\");\n" \
 650 "     link.setAttribute(\"onclick\", \"resort(this);return false;\");\n" \
 651 "     var arrow = document.createElement(\"span\");\n" \
 652 "     arrow.setAttribute(\"class\", \"sortarrow\");\n" \
 653 "     arrow.appendChild(document.createTextNode(\":\"));\n" \
 654 "     link.appendChild(arrow)\n" \
 655 "     n.replaceChild(link, n.firstChild);\n" \
 656 "    }\n" \
 657 "   }\n" \
 658 "   var lnk = row[init_sort_column].firstChild;\n" \
 659 "   if (ascending) {\n" \
 660 "    var span = lnk.childNodes[1];\n" \
 661 "    span.setAttribute('sortdir','down');\n" \
 662 "   }\n" \
 663 "   resort(lnk);\n" \
 664 "  //}\n" \
 665 " }\n" \
 666 "}\n";
 667
 668 static void http_dirlist_append_js_table_resort (buffer *b, connection *con) {
 669         char col = '0';
 670         char ascending = '0';
 671         if (!buffer_string_is_empty(con->uri.query)) {
 672                 const char *qs = con->uri.query->ptr;
 673                 do {
 674                         if (qs[0] == 'C' && qs[1] == '=') {
 675                                 switch (qs[2]) {
 676                                 case 'N': col = '0'; break;
 677                                 case 'M': col = '1'; break;
 678                                 case 'S': col = '2'; break;
 679                                 case 'T':
 680                                 case 'D': col = '3'; break;
 681                                 default:  break;
 682                                 }
 683                         }
 684                         else if (qs[0] == 'O' && qs[1] == '=') {
 685                                 switch (qs[2]) {
 686                                 case 'A': ascending = '1'; break;
 687                                 case 'D': ascending = '0'; break;
 688                                 default:  break;
 689                                 }
 690                         }
 691                 } while ((qs = strchr(qs, '&')) && *++qs);
 692         }
 693
 694         buffer_append_string_len(b, CONST_STR_LEN("\n<script type=\"text/javascript\">\n// <!--\n\n"));
 695         buffer_append_string_len(b, js_simple_table_resort, sizeof(js_simple_table_resort)-1);
 696         buffer_append_string_len(b, js_simple_table_init_sort, sizeof(js_simple_table_init_sort)-1);
 697         buffer_append_string_len(b, CONST_STR_LEN("\ninit_sort("));
 698         buffer_append_string_len(b, &col, 1);
 699         buffer_append_string_len(b, CONST_STR_LEN(", "));
 700         buffer_append_string_len(b, &ascending, 1);
 701         buffer_append_string_len(b, CONST_STR_LEN(");\n\n// -->\n</script>\n\n"));
 702 }
 703
 704 static void http_list_directory_header(server *srv, connection *con, plugin_data *p, buffer *out) {
 705         UNUSED(srv);
 706
 707         if (p->conf.auto_layout) {
 708                 buffer_append_string_len(out, CONST_STR_LEN(
 709                         "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">\n"
 710                         "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\">\n"
 711                         "<head>\n"
 712                         "<title>Index of "
 713                 ));
 714                 buffer_append_string_encoded(out, CONST_BUF_LEN(con->uri.path), ENCODING_MINIMAL_XML);
 715                 buffer_append_string_len(out, CONST_STR_LEN("</title>\n"));
 716
 717                 if (!buffer_string_is_empty(p->conf.external_css)) {
 718                         buffer_append_string_len(out, CONST_STR_LEN("<link rel=\"stylesheet\" type=\"text/css\" href=\""));
 719                         buffer_append_string_buffer(out, p->conf.external_css);
 720                         buffer_append_string_len(out, CONST_STR_LEN("\" />\n"));
 721                 } else {
 722                         buffer_append_string_len(out, CONST_STR_LEN(
 723                                 "<style type=\"text/css\">\n"
 724                                 "a, a:active {text-decoration: none; color: blue;}\n"
 725                                 "a:visited {color: #48468F;}\n"
 726                                 "a:hover, a:focus {text-decoration: underline; color: red;}\n"
 727                                 "body {background-color: #F5F5F5;}\n"
 728                                 "h2 {margin-bottom: 12px;}\n"
 729                                 "table {margin-left: 12px;}\n"
 730                                 "th, td {"
 731                                 " font: 90% monospace;"
 732                                 " text-align: left;"
 733                                 "}\n"
 734                                 "th {"
 735                                 " font-weight: bold;"
 736                                 " padding-right: 14px;"
 737                                 " padding-bottom: 3px;"
 738                                 "}\n"
 739                                 "td {padding-right: 14px;}\n"
 740                                 "td.s, th.s {text-align: right;}\n"
 741                                 "div.list {"
 742                                 " background-color: white;"
 743                                 " border-top: 1px solid #646464;"
 744                                 " border-bottom: 1px solid #646464;"
 745                                 " padding-top: 10px;"
 746                                 " padding-bottom: 14px;"
 747                                 "}\n"
 748                                 "div.foot {"
 749                                 " font: 90% monospace;"
 750                                 " color: #787878;"
 751                                 " padding-top: 4px;"
 752                                 "}\n"
 753                                 "</style>\n"
 754                         ));
 755                 }
 756
 757                 buffer_append_string_len(out, CONST_STR_LEN("</head>\n<body>\n"));
 758         }
 759
 760         /* HEADER.txt */
 761         if (p->conf.show_header) {
 762                 /* if we have a HEADER file, display it in <pre class="header"></pre> */
 763
 764                 buffer_copy_buffer(p->tmp_buf, con->physical.path);
 765                 buffer_append_slash(p->tmp_buf);
 766                 buffer_append_string_len(p->tmp_buf, CONST_STR_LEN("HEADER.txt"));
 767
 768                 http_list_directory_include_file(out, p->tmp_buf, "header", p->conf.encode_header);
 769         }
 770
 771         buffer_append_string_len(out, CONST_STR_LEN("<h2>Index of "));
 772         buffer_append_string_encoded(out, CONST_BUF_LEN(con->uri.path), ENCODING_MINIMAL_XML);
 773         buffer_append_string_len(out, CONST_STR_LEN(
 774                 "</h2>\n"
 775                 "<div class=\"list\">\n"
 776                 "<table summary=\"Directory Listing\" cellpadding=\"0\" cellspacing=\"0\">\n"
 777                 "<thead>"
 778                 "<tr>"
 779                         "<th class=\"n\">Name</th>"
 780                         "<th class=\"m\">Last Modified</th>"
 781                         "<th class=\"s\">Size</th>"
 782                         "<th class=\"t\">Type</th>"
 783                 "</tr>"
 784                 "</thead>\n"
 785                 "<tbody>\n"
 786                 "<tr class=\"d\">"
 787                         "<td class=\"n\"><a href=\"../\">..</a>/</td>"
 788                         "<td class=\"m\">&nbsp;</td>"
 789                         "<td class=\"s\">- &nbsp;</td>"
 790                         "<td class=\"t\">Directory</td>"
 791                 "</tr>\n"
 792         ));
 793 }
 794
 795 static void http_list_directory_footer(server *srv, connection *con, plugin_data *p, buffer *out) {
 796         UNUSED(srv);
 797
 798         buffer_append_string_len(out, CONST_STR_LEN(
 799                 "</tbody>\n"
 800                 "</table>\n"
 801                 "</div>\n"
 802         ));
 803
 804         if (p->conf.show_readme) {
 805                 /* if we have a README file, display it in <pre class="readme"></pre> */
 806
 807                 buffer_copy_buffer(p->tmp_buf,  con->physical.path);
 808                 buffer_append_slash(p->tmp_buf);
 809                 buffer_append_string_len(p->tmp_buf, CONST_STR_LEN("README.txt"));
 810
 811                 http_list_directory_include_file(out, p->tmp_buf, "readme", p->conf.encode_readme);
 812         }
 813
 814         if(p->conf.auto_layout) {
 815
 816                 if (!buffer_string_is_empty(p->conf.external_js)) {
 817                         buffer_append_string_len(out, CONST_STR_LEN("<script type=\"text/javascript\" src=\""));
 818                         buffer_append_string_buffer(out, p->conf.external_js);
 819                         buffer_append_string_len(out, CONST_STR_LEN("\" />\n"));
 820                 } else if (buffer_is_empty(p->conf.external_js)) {
 821                         http_dirlist_append_js_table_resort(out, con);
 822                 }
 823
 824                 buffer_append_string_len(out, CONST_STR_LEN(
 825                         "<div class=\"foot\">"
 826                 ));
 827
 828                 if (!buffer_string_is_empty(p->conf.set_footer)) {
 829                         buffer_append_string_buffer(out, p->conf.set_footer);
 830                 } else {
 831                         buffer_append_string_buffer(out, con->conf.server_tag);
 832                 }
 833
 834                 buffer_append_string_len(out, CONST_STR_LEN(
 835                         "</div>\n"
 836                         "</body>\n"
 837                         "</html>\n"
 838                 ));
 839         }
 840 }
 841
 842 static int http_list_directory(server *srv, connection *con, plugin_data *p, buffer *dir) {
 843         DIR *dp;
 844         buffer *out;
 845         struct dirent *dent;
 846         struct stat st;
 847         char *path, *path_file;
 848         size_t i;
 849         int hide_dotfiles = p->conf.hide_dot_files;
 850         dirls_list_t dirs, files, *list;
 851         dirls_entry_t *tmp;
 852         char sizebuf[sizeof("999.9K")];
 853         char datebuf[sizeof("2005-Jan-01 22:23:24")];
 854         size_t k;
 855         const char *content_type;
 856         long name_max;
 857 #if defined(HAVE_XATTR) || defined(HAVE_EXTATTR)
 858         char attrval[128];
 859         int attrlen;
 860 #endif
 861 #ifdef HAVE_LOCALTIME_R
 862         struct tm tm;
 863 #endif
 864
 865         if (buffer_string_is_empty(dir)) return -1;
 866
 867         i = buffer_string_length(dir);
 868
 869 #ifdef HAVE_PATHCONF
 870         if (0 >= (name_max = pathconf(dir->ptr, _PC_NAME_MAX))) {
 871                 /* some broken fs (fuse) return 0 instead of -1 */
 872 #ifdef NAME_MAX
 873                 name_max = NAME_MAX;
 874 #else
 875                 name_max = 255; /* stupid default */
 876 #endif
 877         }
 878 #elif defined __WIN32
 879         name_max = FILENAME_MAX;
 880 #else
 881         name_max = NAME_MAX;
 882 #endif
 883
 884         path = malloc(i + name_max + 1);
 885         force_assert(NULL != path);
 886         memcpy(path, dir->ptr, i+1);
 887         path_file = path + i;
 888
 889         if (NULL == (dp = opendir(path))) {
 890                 log_error_write(srv, __FILE__, __LINE__, "sbs",
 891                         "opendir failed:", dir, strerror(errno));
 892
 893                 free(path);
 894                 return -1;
 895         }
 896
 897         dirs.ent   = (dirls_entry_t**) malloc(sizeof(dirls_entry_t*) * DIRLIST_BLOB_SIZE);
 898         force_assert(dirs.ent);
 899         dirs.size  = DIRLIST_BLOB_SIZE;
 900         dirs.used  = 0;
 901         files.ent  = (dirls_entry_t**) malloc(sizeof(dirls_entry_t*) * DIRLIST_BLOB_SIZE);
 902         force_assert(files.ent);
 903         files.size = DIRLIST_BLOB_SIZE;
 904         files.used = 0;
 905
 906         while ((dent = readdir(dp)) != NULL) {
 907                 unsigned short exclude_match = 0;
 908
 909                 if (dent->d_name[0] == '.') {
 910                         if (hide_dotfiles)
 911                                 continue;
 912                         if (dent->d_name[1] == '\0')
 913                                 continue;
 914                         if (dent->d_name[1] == '.' && dent->d_name[2] == '\0')
 915                                 continue;
 916                 }
 917
 918                 if (p->conf.hide_readme_file) {
 919                         if (strcmp(dent->d_name, "README.txt") == 0)
 920                                 continue;
 921                 }
 922                 if (p->conf.hide_header_file) {
 923                         if (strcmp(dent->d_name, "HEADER.txt") == 0)
 924                                 continue;
 925                 }
 926
 927                 /* compare d_name against excludes array
 928                  * elements, skipping any that match.
 929                  */
 930 #ifdef HAVE_PCRE_H
 931                 for(i = 0; i < p->conf.excludes->used; i++) {
 932                         int n;
 933 #define N 10
 934                         int ovec[N * 3];
 935                         pcre *regex = p->conf.excludes->ptr[i]->regex;
 936
 937                         if ((n = pcre_exec(regex, NULL, dent->d_name,
 938                                     strlen(dent->d_name), 0, 0, ovec, 3 * N)) < 0) {
 939                                 if (n != PCRE_ERROR_NOMATCH) {
 940                                         log_error_write(srv, __FILE__, __LINE__, "sd",
 941                                                 "execution error while matching:", n);
 942
 943                                         /* aborting would require a lot of manual cleanup here.
 944                                          * skip instead (to not leak names that break pcre matching)
 945                                          */
 946                                         exclude_match = 1;
 947                                         break;
 948                                 }
 949                         }
 950                         else {
 951                                 exclude_match = 1;
 952                                 break;
 953                         }
 954                 }
 955
 956                 if (exclude_match) {
 957                         continue;
 958                 }
 959 #endif
 960
 961                 i = strlen(dent->d_name);
 962
 963                 /* NOTE: the manual says, d_name is never more than NAME_MAX
 964                  *       so this should actually not be a buffer-overflow-risk
 965                  */
 966                 if (i > (size_t)name_max) continue;
 967
 968                 memcpy(path_file, dent->d_name, i + 1);
 969                 if (stat(path, &st) != 0)
 970                         continue;
 971
 972                 list = &files;
 973                 if (S_ISDIR(st.st_mode))
 974                         list = &dirs;
 975
 976                 if (list->used == list->size) {
 977                         list->size += DIRLIST_BLOB_SIZE;
 978                         list->ent   = (dirls_entry_t**) realloc(list->ent, sizeof(dirls_entry_t*) * list->size);
 979                         force_assert(list->ent);
 980                 }
 981
 982                 tmp = (dirls_entry_t*) malloc(sizeof(dirls_entry_t) + 1 + i);
 983                 tmp->mtime = st.st_mtime;
 984                 tmp->size  = st.st_size;
 985                 tmp->namelen = i;
 986                 memcpy(DIRLIST_ENT_NAME(tmp), dent->d_name, i + 1);
 987
 988                 list->ent[list->used++] = tmp;
 989         }
 990         closedir(dp);
 991
 992         if (dirs.used) http_dirls_sort(dirs.ent, dirs.used);
 993
 994         if (files.used) http_dirls_sort(files.ent, files.used);
 995
 996         out = buffer_init();
 997         buffer_copy_string_len(out, CONST_STR_LEN("<?xml version=\"1.0\" encoding=\""));
 998         if (buffer_string_is_empty(p->conf.encoding)) {
 999                 buffer_append_string_len(out, CONST_STR_LEN("iso-8859-1"));
1000         } else {
1001                 buffer_append_string_buffer(out, p->conf.encoding);
1002         }
1003         buffer_append_string_len(out, CONST_STR_LEN("\"?>\n"));
1004         http_list_directory_header(srv, con, p, out);
1005
1006         /* directories */
1007         for (i = 0; i < dirs.used; i++) {
1008                 tmp = dirs.ent[i];
1009
1010 #ifdef HAVE_LOCALTIME_R
1011                 localtime_r(&(tmp->mtime), &tm);
1012                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", &tm);
1013 #else
1014                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", localtime(&(tmp->mtime)));
1015 #endif
1016
1017                 buffer_append_string_len(out, CONST_STR_LEN("<tr class=\"d\"><td class=\"n\"><a href=\""));
1018                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_REL_URI_PART);
1019                 buffer_append_string_len(out, CONST_STR_LEN("/\">"));
1020                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_MINIMAL_XML);
1021                 buffer_append_string_len(out, CONST_STR_LEN("</a>/</td><td class=\"m\">"));
1022                 buffer_append_string_len(out, datebuf, sizeof(datebuf) - 1);
1023                 buffer_append_string_len(out, CONST_STR_LEN("</td><td class=\"s\">- &nbsp;</td><td class=\"t\">Directory</td></tr>\n"));
1024
1025                 free(tmp);
1026         }
1027
1028         /* files */
1029         for (i = 0; i < files.used; i++) {
1030                 tmp = files.ent[i];
1031
1032                 content_type = NULL;
1033 #if defined(HAVE_XATTR)
1034                 if (con->conf.use_xattr) {
1035                         memcpy(path_file, DIRLIST_ENT_NAME(tmp), tmp->namelen + 1);
1036                         attrlen = sizeof(attrval) - 1;
1037                         if (attr_get(path, srv->srvconf.xattr_name->ptr, attrval, &attrlen, 0) == 0) {
1038                                 attrval[attrlen] = '\0';
1039                                 content_type = attrval;
1040                         }
1041                 }
1042 #elif defined(HAVE_EXTATTR)
1043                 if (con->conf.use_xattr) {
1044                         memcpy(path_file, DIRLIST_ENT_NAME(tmp), tmp->namelen + 1);
1045                         if(-1 != (attrlen = extattr_get_file(path, EXTATTR_NAMESPACE_USER, srv->srvconf.xattr_name->ptr, attrval, sizeof(attrval)-1))) {
1046                                 attrval[attrlen] = '\0';
1047                                 content_type = attrval;
1048                         }
1049                 }
1050 #endif
1051
1052                 if (content_type == NULL) {
1053                         content_type = "application/octet-stream";
1054                         for (k = 0; k < con->conf.mimetypes->used; k++) {
1055                                 data_string *ds = (data_string *)con->conf.mimetypes->data[k];
1056                                 size_t ct_len;
1057
1058                                 if (buffer_is_empty(ds->key))
1059                                         continue;
1060
1061                                 ct_len = buffer_string_length(ds->key);
1062                                 if (tmp->namelen < ct_len)
1063                                         continue;
1064
1065                                 if (0 == strncasecmp(DIRLIST_ENT_NAME(tmp) + tmp->namelen - ct_len, ds->key->ptr, ct_len)) {
1066                                         content_type = ds->value->ptr;
1067                                         break;
1068                                 }
1069                         }
1070                 }
1071
1072 #ifdef HAVE_LOCALTIME_R
1073                 localtime_r(&(tmp->mtime), &tm);
1074                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", &tm);
1075 #else
1076                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", localtime(&(tmp->mtime)));
1077 #endif
1078                 http_list_directory_sizefmt(sizebuf, sizeof(sizebuf), tmp->size);
1079
1080                 buffer_append_string_len(out, CONST_STR_LEN("<tr><td class=\"n\"><a href=\""));
1081                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_REL_URI_PART);
1082                 buffer_append_string_len(out, CONST_STR_LEN("\">"));
1083                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_MINIMAL_XML);
1084                 buffer_append_string_len(out, CONST_STR_LEN("</a></td><td class=\"m\">"));
1085                 buffer_append_string_len(out, datebuf, sizeof(datebuf) - 1);
1086                 buffer_append_string_len(out, CONST_STR_LEN("</td><td class=\"s\">"));
1087                 buffer_append_string(out, sizebuf);
1088                 buffer_append_string_len(out, CONST_STR_LEN("</td><td class=\"t\">"));
1089                 buffer_append_string(out, content_type);
1090                 buffer_append_string_len(out, CONST_STR_LEN("</td></tr>\n"));
1091
1092                 free(tmp);
1093         }
1094
1095         free(files.ent);
1096         free(dirs.ent);
1097         free(path);
1098
1099         http_list_directory_footer(srv, con, p, out);
1100
1101         /* Insert possible charset to Content-Type */
1102         if (buffer_string_is_empty(p->conf.encoding)) {
1103                 response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("text/html"));
1104         } else {
1105                 buffer_copy_string_len(p->content_charset, CONST_STR_LEN("text/html; charset="));
1106                 buffer_append_string_buffer(p->content_charset, p->conf.encoding);
1107                 response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(p->content_charset));
1108         }
1109
1110         con->file_finished = 1;
1111         chunkqueue_append_buffer(con->write_queue, out);
1112         buffer_free(out);
1113
1114         return 0;
1115 }
1116
1117
1118
1119 URIHANDLER_FUNC(mod_dirlisting_subrequest) {
1120         plugin_data *p = p_d;
1121         stat_cache_entry *sce = NULL;
1122
1123         UNUSED(srv);
1124
1125         /* we only handle GET and HEAD */
1126         switch(con->request.http_method) {
1127         case HTTP_METHOD_GET:
1128         case HTTP_METHOD_HEAD:
1129                 break;
1130         default:
1131                 return HANDLER_GO_ON;
1132         }
1133
1134         if (con->mode != DIRECT) return HANDLER_GO_ON;
1135
1136         if (buffer_is_empty(con->physical.path)) return HANDLER_GO_ON;
1137         if (buffer_is_empty(con->uri.path)) return HANDLER_GO_ON;
1138         if (con->uri.path->ptr[buffer_string_length(con->uri.path) - 1] != '/') return HANDLER_GO_ON;
1139
1140         mod_dirlisting_patch_connection(srv, con, p);
1141
1142         if (!p->conf.dir_listing) return HANDLER_GO_ON;
1143
1144         if (con->conf.log_request_handling) {
1145                 log_error_write(srv, __FILE__, __LINE__,  "s",  "-- handling the request as Dir-Listing");
1146                 log_error_write(srv, __FILE__, __LINE__,  "sb", "URI          :", con->uri.path);
1147         }
1148
1149         if (HANDLER_ERROR == stat_cache_get_entry(srv, con, con->physical.path, &sce)) {
1150                 log_error_write(srv, __FILE__, __LINE__,  "SB", "stat_cache_get_entry failed: ", con->physical.path);
1151                 SEGFAULT();
1152         }
1153
1154         if (!S_ISDIR(sce->st.st_mode)) return HANDLER_GO_ON;
1155
1156         if (http_list_directory(srv, con, p, con->physical.path)) {
1157                 /* dirlisting failed */
1158                 con->http_status = 403;
1159         }
1160
1161         buffer_reset(con->physical.path);
1162
1163         /* not found */
1164         return HANDLER_FINISHED;
1165 }
1166
1167 /* this function is called at dlopen() time and inits the callbacks */
1168
1169 int mod_dirlisting_plugin_init(plugin *p);
1170 int mod_dirlisting_plugin_init(plugin *p) {
1171         p->version     = LIGHTTPD_VERSION_ID;
1172         p->name        = buffer_init_string("dirlisting");
1173
1174         p->init        = mod_dirlisting_init;
1175         p->handle_subrequest_start  = mod_dirlisting_subrequest;
1176         p->set_defaults  = mod_dirlisting_set_defaults;
1177         p->cleanup     = mod_dirlisting_free;
1178
1179         p->data        = NULL;
1180
1181         return 0;
1182 }