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
  12 #include <ctype.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <dirent.h>
  16 #include <assert.h>
  17 #include <errno.h>
  18 #include <fcntl.h>
  19 #include <stdio.h>
  20 #include <unistd.h>
  21 #include <time.h>
  22
  23 /**
  24  * this is a dirlisting for a lighttpd plugin
  25  */
  26
  27 #ifdef HAVE_ATTR_ATTRIBUTES_H
  28 #include <attr/attributes.h>
  29 #endif
  30
  31 #ifdef HAVE_SYS_EXTATTR_H
  32 #include <sys/extattr.h>
  33 #endif
  34
  35 /* plugin config for all request/connections */
  36
  37 typedef struct {
  38 #ifdef HAVE_PCRE_H
  39         pcre *regex;
  40 #endif
  41         buffer *string;
  42 } excludes;
  43
  44 typedef struct {
  45         excludes **ptr;
  46
  47         size_t used;
  48         size_t size;
  49 } excludes_buffer;
  50
  51 typedef struct {
  52         unsigned short dir_listing;
  53         unsigned short hide_dot_files;
  54         unsigned short hide_readme_file;
  55         unsigned short encode_readme;
  56         unsigned short hide_header_file;
  57         unsigned short encode_header;
  58         unsigned short auto_layout;
  59
  60         excludes_buffer *excludes;
  61
  62         buffer *show_readme;
  63         buffer *show_header;
  64         buffer *external_css;
  65         buffer *external_js;
  66         buffer *encoding;
  67         buffer *set_footer;
  68 } plugin_config;
  69
  70 typedef struct {
  71         PLUGIN_DATA;
  72
  73         buffer *tmp_buf;
  74         buffer *content_charset;
  75
  76         plugin_config **config_storage;
  77
  78         plugin_config conf;
  79 } plugin_data;
  80
  81 static excludes_buffer *excludes_buffer_init(void) {
  82         excludes_buffer *exb;
  83
  84         exb = calloc(1, sizeof(*exb));
  85
  86         return exb;
  87 }
  88
  89 static int excludes_buffer_append(excludes_buffer *exb, buffer *string) {
  90 #ifdef HAVE_PCRE_H
  91         size_t i;
  92         const char *errptr;
  93         int erroff;
  94
  95         if (!string) return -1;
  96
  97         if (exb->size == 0) {
  98                 exb->size = 4;
  99                 exb->used = 0;
 100
 101                 exb->ptr = malloc(exb->size * sizeof(*exb->ptr));
 102
 103                 for(i = 0; i < exb->size ; i++) {
 104                         exb->ptr[i] = calloc(1, sizeof(**exb->ptr));
 105                 }
 106         } else if (exb->used == exb->size) {
 107                 exb->size += 4;
 108
 109                 exb->ptr = realloc(exb->ptr, exb->size * sizeof(*exb->ptr));
 110
 111                 for(i = exb->used; i < exb->size; i++) {
 112                         exb->ptr[i] = calloc(1, sizeof(**exb->ptr));
 113                 }
 114         }
 115
 116
 117         if (NULL == (exb->ptr[exb->used]->regex = pcre_compile(string->ptr, 0,
 118                                                     &errptr, &erroff, NULL))) {
 119                 return -1;
 120         }
 121
 122         exb->ptr[exb->used]->string = buffer_init();
 123         buffer_copy_buffer(exb->ptr[exb->used]->string, string);
 124
 125         exb->used++;
 126
 127         return 0;
 128 #else
 129         UNUSED(exb);
 130         UNUSED(string);
 131
 132         return -1;
 133 #endif
 134 }
 135
 136 static void excludes_buffer_free(excludes_buffer *exb) {
 137 #ifdef HAVE_PCRE_H
 138         size_t i;
 139
 140         for (i = 0; i < exb->size; i++) {
 141                 if (exb->ptr[i]->regex) pcre_free(exb->ptr[i]->regex);
 142                 if (exb->ptr[i]->string) buffer_free(exb->ptr[i]->string);
 143                 free(exb->ptr[i]);
 144         }
 145
 146         if (exb->ptr) free(exb->ptr);
 147 #endif
 148
 149         free(exb);
 150 }
 151
 152 /* init the plugin data */
 153 INIT_FUNC(mod_dirlisting_init) {
 154         plugin_data *p;
 155
 156         p = calloc(1, sizeof(*p));
 157
 158         p->tmp_buf = buffer_init();
 159         p->content_charset = buffer_init();
 160
 161         return p;
 162 }
 163
 164 /* detroy the plugin data */
 165 FREE_FUNC(mod_dirlisting_free) {
 166         plugin_data *p = p_d;
 167
 168         UNUSED(srv);
 169
 170         if (!p) return HANDLER_GO_ON;
 171
 172         if (p->config_storage) {
 173                 size_t i;
 174                 for (i = 0; i < srv->config_context->used; i++) {
 175                         plugin_config *s = p->config_storage[i];
 176
 177                         if (!s) continue;
 178
 179                         excludes_buffer_free(s->excludes);
 180                         buffer_free(s->show_readme);
 181                         buffer_free(s->show_header);
 182                         buffer_free(s->external_css);
 183                         buffer_free(s->external_js);
 184                         buffer_free(s->encoding);
 185                         buffer_free(s->set_footer);
 186
 187                         free(s);
 188                 }
 189                 free(p->config_storage);
 190         }
 191
 192         buffer_free(p->tmp_buf);
 193         buffer_free(p->content_charset);
 194
 195         free(p);
 196
 197         return HANDLER_GO_ON;
 198 }
 199
 200 /* handle plugin config and check values */
 201
 202 #define CONFIG_EXCLUDE          "dir-listing.exclude"
 203 #define CONFIG_ACTIVATE         "dir-listing.activate"
 204 #define CONFIG_HIDE_DOTFILES    "dir-listing.hide-dotfiles"
 205 #define CONFIG_EXTERNAL_CSS     "dir-listing.external-css"
 206 #define CONFIG_EXTERNAL_JS      "dir-listing.external-js"
 207 #define CONFIG_ENCODING         "dir-listing.encoding"
 208 #define CONFIG_SHOW_README      "dir-listing.show-readme"
 209 #define CONFIG_HIDE_README_FILE "dir-listing.hide-readme-file"
 210 #define CONFIG_SHOW_HEADER      "dir-listing.show-header"
 211 #define CONFIG_HIDE_HEADER_FILE "dir-listing.hide-header-file"
 212 #define CONFIG_DIR_LISTING      "server.dir-listing"
 213 #define CONFIG_SET_FOOTER       "dir-listing.set-footer"
 214 #define CONFIG_ENCODE_README    "dir-listing.encode-readme"
 215 #define CONFIG_ENCODE_HEADER    "dir-listing.encode-header"
 216 #define CONFIG_AUTO_LAYOUT      "dir-listing.auto-layout"
 217
 218
 219 SETDEFAULTS_FUNC(mod_dirlisting_set_defaults) {
 220         plugin_data *p = p_d;
 221         size_t i = 0;
 222
 223         config_values_t cv[] = {
 224                 { CONFIG_EXCLUDE,          NULL, T_CONFIG_LOCAL, T_CONFIG_SCOPE_CONNECTION },   /* 0 */
 225                 { CONFIG_ACTIVATE,         NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 1 */
 226                 { CONFIG_HIDE_DOTFILES,    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 2 */
 227                 { CONFIG_EXTERNAL_CSS,     NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 3 */
 228                 { CONFIG_ENCODING,         NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 4 */
 229                 { CONFIG_SHOW_README,      NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 5 */
 230                 { CONFIG_HIDE_README_FILE, NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 6 */
 231                 { CONFIG_SHOW_HEADER,      NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 7 */
 232                 { CONFIG_HIDE_HEADER_FILE, NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 8 */
 233                 { CONFIG_DIR_LISTING,      NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 9 */
 234                 { CONFIG_SET_FOOTER,       NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 10 */
 235                 { CONFIG_ENCODE_README,    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 11 */
 236                 { CONFIG_ENCODE_HEADER,    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 12 */
 237                 { CONFIG_AUTO_LAYOUT,      NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 13 */
 238                 { CONFIG_EXTERNAL_JS,      NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION },  /* 14 */
 239
 240                 { NULL,                          NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
 241         };
 242
 243         if (!p) return HANDLER_ERROR;
 244
 245         p->config_storage = calloc(1, srv->config_context->used * sizeof(plugin_config *));
 246
 247         for (i = 0; i < srv->config_context->used; i++) {
 248                 data_config const* config = (data_config const*)srv->config_context->data[i];
 249                 plugin_config *s;
 250                 data_unset *du_excludes;
 251
 252                 s = calloc(1, sizeof(plugin_config));
 253                 s->excludes = excludes_buffer_init();
 254                 s->dir_listing = 0;
 255                 s->show_readme = buffer_init();
 256                 s->show_header = buffer_init();
 257                 s->external_css = buffer_init();
 258                 s->external_js = buffer_init();
 259                 s->hide_dot_files = 1;
 260                 s->hide_readme_file = 0;
 261                 s->hide_header_file = 0;
 262                 s->encode_readme = 1;
 263                 s->encode_header = 1;
 264                 s->auto_layout = 1;
 265
 266                 s->encoding = buffer_init();
 267                 s->set_footer = buffer_init();
 268
 269                 cv[0].destination = s->excludes;
 270                 cv[1].destination = &(s->dir_listing);
 271                 cv[2].destination = &(s->hide_dot_files);
 272                 cv[3].destination = s->external_css;
 273                 cv[4].destination = s->encoding;
 274                 cv[5].destination = s->show_readme;
 275                 cv[6].destination = &(s->hide_readme_file);
 276                 cv[7].destination = s->show_header;
 277                 cv[8].destination = &(s->hide_header_file);
 278                 cv[9].destination = &(s->dir_listing); /* old name */
 279                 cv[10].destination = s->set_footer;
 280                 cv[11].destination = &(s->encode_readme);
 281                 cv[12].destination = &(s->encode_header);
 282                 cv[13].destination = &(s->auto_layout);
 283                 cv[14].destination = s->external_js;
 284
 285                 p->config_storage[i] = s;
 286
 287                 if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) {
 288                         return HANDLER_ERROR;
 289                 }
 290
 291                 if (NULL != (du_excludes = array_get_element(config->value, CONFIG_EXCLUDE))) {
 292                         array *excludes_list;
 293                         size_t j;
 294
 295                         if (du_excludes->type != TYPE_ARRAY) {
 296                                 log_error_write(srv, __FILE__, __LINE__, "sss",
 297                                         "unexpected type for key: ", CONFIG_EXCLUDE, "array of strings");
 298                                 return HANDLER_ERROR;
 299                         }
 300
 301                         excludes_list = ((data_array*)du_excludes)->value;
 302
 303 #ifndef HAVE_PCRE_H
 304                         if (excludes_list->used > 0) {
 305                                 log_error_write(srv, __FILE__, __LINE__, "sss",
 306                                         "pcre support is missing for: ", CONFIG_EXCLUDE, ", please install libpcre and the headers");
 307                                 return HANDLER_ERROR;
 308                         }
 309 #else
 310                         for (j = 0; j < excludes_list->used; j++) {
 311                                 data_unset *du_exclude = excludes_list->data[j];
 312
 313                                 if (du_exclude->type != TYPE_STRING) {
 314                                         log_error_write(srv, __FILE__, __LINE__, "sssbs",
 315                                                 "unexpected type for key: ", CONFIG_EXCLUDE, "[",
 316                                                 du_exclude->key, "](string)");
 317                                         return HANDLER_ERROR;
 318                                 }
 319
 320                                 if (0 != excludes_buffer_append(s->excludes, ((data_string*)(du_exclude))->value)) {
 321                                         log_error_write(srv, __FILE__, __LINE__, "sb",
 322                                                 "pcre-compile failed for", ((data_string*)(du_exclude))->value);
 323                                         return HANDLER_ERROR;
 324                                 }
 325                         }
 326 #endif
 327                 }
 328
 329                 if (!buffer_string_is_empty(s->show_readme)) {
 330                         if (buffer_is_equal_string(s->show_readme, CONST_STR_LEN("enable"))) {
 331                                 buffer_copy_string_len(s->show_readme, CONST_STR_LEN("README.txt"));
 332                         }
 333                         else if (buffer_is_equal_string(s->show_readme, CONST_STR_LEN("disable"))) {
 334                                 buffer_string_set_length(s->show_readme, 0);
 335                         }
 336                 }
 337
 338                 if (!buffer_string_is_empty(s->show_header)) {
 339                         if (buffer_is_equal_string(s->show_header, CONST_STR_LEN("enable"))) {
 340                                 buffer_copy_string_len(s->show_header, CONST_STR_LEN("HEADER.txt"));
 341                         }
 342                         else if (buffer_is_equal_string(s->show_header, CONST_STR_LEN("disable"))) {
 343                                 buffer_string_set_length(s->show_header, 0);
 344                         }
 345                 }
 346         }
 347
 348         return HANDLER_GO_ON;
 349 }
 350
 351 #define PATCH(x) \
 352         p->conf.x = s->x;
 353 static int mod_dirlisting_patch_connection(server *srv, connection *con, plugin_data *p) {
 354         size_t i, j;
 355         plugin_config *s = p->config_storage[0];
 356
 357         PATCH(dir_listing);
 358         PATCH(external_css);
 359         PATCH(external_js);
 360         PATCH(hide_dot_files);
 361         PATCH(encoding);
 362         PATCH(show_readme);
 363         PATCH(hide_readme_file);
 364         PATCH(show_header);
 365         PATCH(hide_header_file);
 366         PATCH(excludes);
 367         PATCH(set_footer);
 368         PATCH(encode_readme);
 369         PATCH(encode_header);
 370         PATCH(auto_layout);
 371
 372         /* skip the first, the global context */
 373         for (i = 1; i < srv->config_context->used; i++) {
 374                 data_config *dc = (data_config *)srv->config_context->data[i];
 375                 s = p->config_storage[i];
 376
 377                 /* condition didn't match */
 378                 if (!config_check_cond(srv, con, dc)) continue;
 379
 380                 /* merge config */
 381                 for (j = 0; j < dc->value->used; j++) {
 382                         data_unset *du = dc->value->data[j];
 383
 384                         if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ACTIVATE)) ||
 385                             buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_DIR_LISTING))) {
 386                                 PATCH(dir_listing);
 387                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_HIDE_DOTFILES))) {
 388                                 PATCH(hide_dot_files);
 389                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_EXTERNAL_CSS))) {
 390                                 PATCH(external_css);
 391                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_EXTERNAL_JS))) {
 392                                 PATCH(external_js);
 393                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ENCODING))) {
 394                                 PATCH(encoding);
 395                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_SHOW_README))) {
 396                                 PATCH(show_readme);
 397                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_HIDE_README_FILE))) {
 398                                 PATCH(hide_readme_file);
 399                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_SHOW_HEADER))) {
 400                                 PATCH(show_header);
 401                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_HIDE_HEADER_FILE))) {
 402                                 PATCH(hide_header_file);
 403                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_SET_FOOTER))) {
 404                                 PATCH(set_footer);
 405                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_EXCLUDE))) {
 406                                 PATCH(excludes);
 407                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ENCODE_README))) {
 408                                 PATCH(encode_readme);
 409                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_ENCODE_HEADER))) {
 410                                 PATCH(encode_header);
 411                         } else if (buffer_is_equal_string(du->key, CONST_STR_LEN(CONFIG_AUTO_LAYOUT))) {
 412                                 PATCH(auto_layout);
 413                         }
 414                 }
 415         }
 416
 417         return 0;
 418 }
 419 #undef PATCH
 420
 421 typedef struct {
 422         size_t  namelen;
 423         time_t  mtime;
 424         off_t   size;
 425 } dirls_entry_t;
 426
 427 typedef struct {
 428         dirls_entry_t **ent;
 429         size_t used;
 430         size_t size;
 431 } dirls_list_t;
 432
 433 #define DIRLIST_ENT_NAME(ent)   ((char*)(ent) + sizeof(dirls_entry_t))
 434 #define DIRLIST_BLOB_SIZE               16
 435
 436 /* simple combsort algorithm */
 437 static void http_dirls_sort(dirls_entry_t **ent, int num) {
 438         int gap = num;
 439         int i, j;
 440         int swapped;
 441         dirls_entry_t *tmp;
 442
 443         do {
 444                 gap = (gap * 10) / 13;
 445                 if (gap == 9 || gap == 10)
 446                         gap = 11;
 447                 if (gap < 1)
 448                         gap = 1;
 449                 swapped = 0;
 450
 451                 for (i = 0; i < num - gap; i++) {
 452                         j = i + gap;
 453                         if (strcmp(DIRLIST_ENT_NAME(ent[i]), DIRLIST_ENT_NAME(ent[j])) > 0) {
 454                                 tmp = ent[i];
 455                                 ent[i] = ent[j];
 456                                 ent[j] = tmp;
 457                                 swapped = 1;
 458                         }
 459                 }
 460
 461         } while (gap > 1 || swapped);
 462 }
 463
 464 /* buffer must be able to hold "999.9K"
 465  * conversion is simple but not perfect
 466  */
 467 static int http_list_directory_sizefmt(char *buf, size_t bufsz, off_t size) {
 468         const char unit[] = " KMGTPE";  /* Kilo, Mega, Giga, Tera, Peta, Exa */
 469         const char *u = unit;           /* u will always increment at least once */
 470         int remain;
 471         size_t buflen;
 472
 473         if (size < 100)
 474                 size += 99;
 475         if (size < 100)
 476                 size = 0;
 477
 478         while (1) {
 479                 remain = (int) size & 1023;
 480                 size >>= 10;
 481                 u++;
 482                 if ((size & (~0 ^ 1023)) == 0)
 483                         break;
 484         }
 485
 486         remain /= 100;
 487         if (remain > 9)
 488                 remain = 9;
 489         if (size > 999) {
 490                 size   = 0;
 491                 remain = 9;
 492                 u++;
 493         }
 494
 495         li_itostrn(buf, bufsz, size);
 496         buflen = strlen(buf);
 497         if (buflen + 3 >= bufsz) return buflen;
 498         buf[buflen+0] = '.';
 499         buf[buflen+1] = remain + '0';
 500         buf[buflen+2] = *u;
 501         buf[buflen+3] = '\0';
 502
 503         return buflen + 3;
 504 }
 505
 506 /* don't want to block when open()ing a fifo */
 507 #if defined(O_NONBLOCK)
 508 # define FIFO_NONBLOCK O_NONBLOCK
 509 #else
 510 # define FIFO_NONBLOCK 0
 511 #endif
 512
 513 static void http_list_directory_include_file(buffer *out, buffer *path, const char *classname, int encode) {
 514         int fd = open(path->ptr, O_RDONLY | FIFO_NONBLOCK);
 515         ssize_t rd;
 516         char buf[8192];
 517
 518         if (-1 == fd) return;
 519
 520         if (encode) {
 521                 buffer_append_string_len(out, CONST_STR_LEN("<pre class=\""));
 522                 buffer_append_string(out, classname);
 523                 buffer_append_string_len(out, CONST_STR_LEN("\">"));
 524         }
 525
 526         while ((rd = read(fd, buf, sizeof(buf))) > 0) {
 527                 if (encode) {
 528                         buffer_append_string_encoded(out, buf, (size_t)rd, ENCODING_MINIMAL_XML);
 529                 } else {
 530                         buffer_append_string_len(out, buf, (size_t)rd);
 531                 }
 532         }
 533         close(fd);
 534
 535         if (encode) {
 536                 buffer_append_string_len(out, CONST_STR_LEN("</pre>"));
 537         }
 538 }
 539
 540 /* portions copied from mod_status
 541  * modified and specialized for stable dirlist sorting by name */
 542 static const char js_simple_table_resort[] = \
 543 "var click_column;\n" \
 544 "var name_column = 0;\n" \
 545 "var date_column = 1;\n" \
 546 "var size_column = 2;\n" \
 547 "var type_column = 3;\n" \
 548 "var prev_span = null;\n" \
 549 "\n" \
 550 "if (typeof(String.prototype.localeCompare) === 'undefined') {\n" \
 551 " String.prototype.localeCompare = function(str, locale, options) {\n" \
 552 "   return ((this == str) ? 0 : ((this > str) ? 1 : -1));\n" \
 553 " };\n" \
 554 "}\n" \
 555 "\n" \
 556 "if (typeof(String.prototype.toLocaleUpperCase) === 'undefined') {\n" \
 557 " String.prototype.toLocaleUpperCase = function() {\n" \
 558 "  return this.toUpperCase();\n" \
 559 " };\n" \
 560 "}\n" \
 561 "\n" \
 562 "function get_inner_text(el) {\n" \
 563 " if((typeof el == 'string')||(typeof el == 'undefined'))\n" \
 564 "  return el;\n" \
 565 " if(el.innerText)\n" \
 566 "  return el.innerText;\n" \
 567 " else {\n" \
 568 "  var str = \"\";\n" \
 569 "  var cs = el.childNodes;\n" \
 570 "  var l = cs.length;\n" \
 571 "  for (i=0;i<l;i++) {\n" \
 572 "   if (cs[i].nodeType==1) str += get_inner_text(cs[i]);\n" \
 573 "   else if (cs[i].nodeType==3) str += cs[i].nodeValue;\n" \
 574 "  }\n" \
 575 " }\n" \
 576 " return str;\n" \
 577 "}\n" \
 578 "\n" \
 579 "function isdigit(c) {\n" \
 580 " return (c >= '0' && c <= '9');\n" \
 581 "}\n" \
 582 "\n" \
 583 "function unit_multiplier(unit) {\n" \
 584 " return (unit=='K') ? 1000\n" \
 585 "      : (unit=='M') ? 1000000\n" \
 586 "      : (unit=='G') ? 1000000000\n" \
 587 "      : (unit=='T') ? 1000000000000\n" \
 588 "      : (unit=='P') ? 1000000000000000\n" \
 589 "      : (unit=='E') ? 1000000000000000000 : 1;\n" \
 590 "}\n" \
 591 "\n" \
 592 "function sortfn_then_by_name(a,b,sort_column) {\n" \
 593 " if (sort_column == name_column || sort_column == type_column) {\n" \
 594 "  var ad = (a.cells[type_column].innerHTML === 'Directory');\n" \
 595 "  var bd = (b.cells[type_column].innerHTML === 'Directory');\n" \
 596 "  if (ad != bd) return (ad ? -1 : 1);\n" \
 597 " }\n" \
 598 " var at = get_inner_text(a.cells[sort_column]);\n" \
 599 " var bt = get_inner_text(b.cells[sort_column]);\n" \
 600 " var cmp;\n" \
 601 " if (a.cells[sort_column].className == 'int') {\n" \
 602 "  cmp = parseInt(at)-parseInt(bt);\n" \
 603 " } else if (sort_column == date_column) {\n" \
 604 "  cmp = Date.parse(at.replace(/-/g, '/'))\n" \
 605 "      - Date.parse(bt.replace(/-/g, '/'));\n" \
 606 "  var ad = isdigit(at.substr(0,1));\n" \
 607 "  var bd = isdigit(bt.substr(0,1));\n" \
 608 "  if (ad != bd) return (!ad ? -1 : 1);\n" \
 609 " } else if (sort_column == size_column) {\n" \
 610 "  var ai = parseInt(at, 10) * unit_multiplier(at.substr(-1,1));\n" \
 611 "  var bi = parseInt(bt, 10) * unit_multiplier(bt.substr(-1,1));\n" \
 612 "  if (at.substr(0,1) == '-') ai = -1;\n" \
 613 "  if (bt.substr(0,1) == '-') bi = -1;\n" \
 614 "  cmp = ai - bi;\n" \
 615 " } else {\n" \
 616 "  cmp = at.toLocaleUpperCase().localeCompare(bt.toLocaleUpperCase());\n" \
 617 "  if (0 != cmp) return cmp;\n" \
 618 "  cmp = at.localeCompare(bt);\n" \
 619 " }\n" \
 620 " if (0 != cmp || sort_column == name_column) return cmp;\n" \
 621 " return sortfn_then_by_name(a,b,name_column);\n" \
 622 "}\n" \
 623 "\n" \
 624 "function sortfn(a,b) {\n" \
 625 " return sortfn_then_by_name(a,b,click_column);\n" \
 626 "}\n" \
 627 "\n" \
 628 "function resort(lnk) {\n" \
 629 " var span = lnk.childNodes[1];\n" \
 630 " var table = lnk.parentNode.parentNode.parentNode.parentNode;\n" \
 631 " var rows = new Array();\n" \
 632 " for (j=1;j<table.rows.length;j++)\n" \
 633 "  rows[j-1] = table.rows[j];\n" \
 634 " click_column = lnk.parentNode.cellIndex;\n" \
 635 " rows.sort(sortfn);\n" \
 636 "\n" \
 637 " if (prev_span != null) prev_span.innerHTML = '';\n" \
 638 " if (span.getAttribute('sortdir')=='down') {\n" \
 639 "  span.innerHTML = '&uarr;';\n" \
 640 "  span.setAttribute('sortdir','up');\n" \
 641 "  rows.reverse();\n" \
 642 " } else {\n" \
 643 "  span.innerHTML = '&darr;';\n" \
 644 "  span.setAttribute('sortdir','down');\n" \
 645 " }\n" \
 646 " for (i=0;i<rows.length;i++)\n" \
 647 "  table.tBodies[0].appendChild(rows[i]);\n" \
 648 " prev_span = span;\n" \
 649 "}\n";
 650
 651 /* portions copied from mod_dirlist (lighttpd2) */
 652 static const char js_simple_table_init_sort[] = \
 653 "\n" \
 654 "function init_sort(init_sort_column, ascending) {\n" \
 655 " var tables = document.getElementsByTagName(\"table\");\n" \
 656 " for (var i = 0; i < tables.length; i++) {\n" \
 657 "  var table = tables[i];\n" \
 658 "  //var c = table.getAttribute(\"class\")\n" \
 659 "  //if (-1 != c.split(\" \").indexOf(\"sort\")) {\n" \
 660 "   var row = table.rows[0].cells;\n" \
 661 "   for (var j = 0; j < row.length; j++) {\n" \
 662 "    var n = row[j];\n" \
 663 "    if (n.childNodes.length == 1 && n.childNodes[0].nodeType == 3) {\n" \
 664 "     var link = document.createElement(\"a\");\n" \
 665 "     var title = n.childNodes[0].nodeValue.replace(/:$/, \"\");\n" \
 666 "     link.appendChild(document.createTextNode(title));\n" \
 667 "     link.setAttribute(\"href\", \"#\");\n" \
 668 "     link.setAttribute(\"class\", \"sortheader\");\n" \
 669 "     link.setAttribute(\"onclick\", \"resort(this);return false;\");\n" \
 670 "     var arrow = document.createElement(\"span\");\n" \
 671 "     arrow.setAttribute(\"class\", \"sortarrow\");\n" \
 672 "     arrow.appendChild(document.createTextNode(\":\"));\n" \
 673 "     link.appendChild(arrow)\n" \
 674 "     n.replaceChild(link, n.firstChild);\n" \
 675 "    }\n" \
 676 "   }\n" \
 677 "   var lnk = row[init_sort_column].firstChild;\n" \
 678 "   if (ascending) {\n" \
 679 "    var span = lnk.childNodes[1];\n" \
 680 "    span.setAttribute('sortdir','down');\n" \
 681 "   }\n" \
 682 "   resort(lnk);\n" \
 683 "  //}\n" \
 684 " }\n" \
 685 "}\n";
 686
 687 static void http_dirlist_append_js_table_resort (buffer *b, connection *con) {
 688         char col = '0';
 689         char ascending = '0';
 690         if (!buffer_string_is_empty(con->uri.query)) {
 691                 const char *qs = con->uri.query->ptr;
 692                 do {
 693                         if (qs[0] == 'C' && qs[1] == '=') {
 694                                 switch (qs[2]) {
 695                                 case 'N': col = '0'; break;
 696                                 case 'M': col = '1'; break;
 697                                 case 'S': col = '2'; break;
 698                                 case 'T':
 699                                 case 'D': col = '3'; break;
 700                                 default:  break;
 701                                 }
 702                         }
 703                         else if (qs[0] == 'O' && qs[1] == '=') {
 704                                 switch (qs[2]) {
 705                                 case 'A': ascending = '1'; break;
 706                                 case 'D': ascending = '0'; break;
 707                                 default:  break;
 708                                 }
 709                         }
 710                 } while ((qs = strchr(qs, '&')) && *++qs);
 711         }
 712
 713         buffer_append_string_len(b, CONST_STR_LEN("\n<script type=\"text/javascript\">\n// <!--\n\n"));
 714         buffer_append_string_len(b, js_simple_table_resort, sizeof(js_simple_table_resort)-1);
 715         buffer_append_string_len(b, js_simple_table_init_sort, sizeof(js_simple_table_init_sort)-1);
 716         buffer_append_string_len(b, CONST_STR_LEN("\ninit_sort("));
 717         buffer_append_string_len(b, &col, 1);
 718         buffer_append_string_len(b, CONST_STR_LEN(", "));
 719         buffer_append_string_len(b, &ascending, 1);
 720         buffer_append_string_len(b, CONST_STR_LEN(");\n\n// -->\n</script>\n\n"));
 721 }
 722
 723 static void http_list_directory_header(server *srv, connection *con, plugin_data *p, buffer *out) {
 724         UNUSED(srv);
 725
 726         if (p->conf.auto_layout) {
 727                 buffer_append_string_len(out, CONST_STR_LEN(
 728                         "<!DOCTYPE html>\n"
 729                         "<html>\n"
 730                         "<head>\n"
 731                 ));
 732                 if (!buffer_string_is_empty(p->conf.encoding)) {
 733                         buffer_append_string_len(out, CONST_STR_LEN("<meta charset=\""));
 734                         buffer_append_string_buffer(out, p->conf.encoding);
 735                         buffer_append_string_len(out, CONST_STR_LEN("\">\n"));
 736                 }
 737                 buffer_append_string_len(out, CONST_STR_LEN("<title>Index of "));
 738                 buffer_append_string_encoded(out, CONST_BUF_LEN(con->uri.path), ENCODING_MINIMAL_XML);
 739                 buffer_append_string_len(out, CONST_STR_LEN("</title>\n"));
 740
 741                 if (!buffer_string_is_empty(p->conf.external_css)) {
 742                         buffer_append_string_len(out, CONST_STR_LEN("<meta name=\"viewport\" content=\"initial-scale=1\">"));
 743                         buffer_append_string_len(out, CONST_STR_LEN("<link rel=\"stylesheet\" type=\"text/css\" href=\""));
 744                         buffer_append_string_buffer(out, p->conf.external_css);
 745                         buffer_append_string_len(out, CONST_STR_LEN("\">\n"));
 746                 } else {
 747                         buffer_append_string_len(out, CONST_STR_LEN(
 748                                 "<style type=\"text/css\">\n"
 749                                 "a, a:active {text-decoration: none; color: blue;}\n"
 750                                 "a:visited {color: #48468F;}\n"
 751                                 "a:hover, a:focus {text-decoration: underline; color: red;}\n"
 752                                 "body {background-color: #F5F5F5;}\n"
 753                                 "h2 {margin-bottom: 12px;}\n"
 754                                 "table {margin-left: 12px;}\n"
 755                                 "th, td {"
 756                                 " font: 90% monospace;"
 757                                 " text-align: left;"
 758                                 "}\n"
 759                                 "th {"
 760                                 " font-weight: bold;"
 761                                 " padding-right: 14px;"
 762                                 " padding-bottom: 3px;"
 763                                 "}\n"
 764                                 "td {padding-right: 14px;}\n"
 765                                 "td.s, th.s {text-align: right;}\n"
 766                                 "div.list {"
 767                                 " background-color: white;"
 768                                 " border-top: 1px solid #646464;"
 769                                 " border-bottom: 1px solid #646464;"
 770                                 " padding-top: 10px;"
 771                                 " padding-bottom: 14px;"
 772                                 "}\n"
 773                                 "div.foot {"
 774                                 " font: 90% monospace;"
 775                                 " color: #787878;"
 776                                 " padding-top: 4px;"
 777                                 "}\n"
 778                                 "</style>\n"
 779                         ));
 780                 }
 781
 782                 buffer_append_string_len(out, CONST_STR_LEN("</head>\n<body>\n"));
 783         }
 784
 785         if (!buffer_string_is_empty(p->conf.show_header)) {
 786                 /* if we have a HEADER file, display it in <pre class="header"></pre> */
 787
 788                 buffer_copy_buffer(p->tmp_buf, con->physical.path);
 789                 buffer_append_slash(p->tmp_buf);
 790                 buffer_append_string_buffer(p->tmp_buf, p->conf.show_header);
 791
 792                 http_list_directory_include_file(out, p->tmp_buf, "header", p->conf.encode_header);
 793         }
 794
 795         buffer_append_string_len(out, CONST_STR_LEN("<h2>Index of "));
 796         buffer_append_string_encoded(out, CONST_BUF_LEN(con->uri.path), ENCODING_MINIMAL_XML);
 797         buffer_append_string_len(out, CONST_STR_LEN(
 798                 "</h2>\n"
 799                 "<div class=\"list\">\n"
 800                 "<table summary=\"Directory Listing\" cellpadding=\"0\" cellspacing=\"0\">\n"
 801                 "<thead>"
 802                 "<tr>"
 803                         "<th class=\"n\">Name</th>"
 804                         "<th class=\"m\">Last Modified</th>"
 805                         "<th class=\"s\">Size</th>"
 806                         "<th class=\"t\">Type</th>"
 807                 "</tr>"
 808                 "</thead>\n"
 809                 "<tbody>\n"
 810                 "<tr class=\"d\">"
 811                         "<td class=\"n\"><a href=\"../\">..</a>/</td>"
 812                         "<td class=\"m\">&nbsp;</td>"
 813                         "<td class=\"s\">- &nbsp;</td>"
 814                         "<td class=\"t\">Directory</td>"
 815                 "</tr>\n"
 816         ));
 817 }
 818
 819 static void http_list_directory_footer(server *srv, connection *con, plugin_data *p, buffer *out) {
 820         UNUSED(srv);
 821
 822         buffer_append_string_len(out, CONST_STR_LEN(
 823                 "</tbody>\n"
 824                 "</table>\n"
 825                 "</div>\n"
 826         ));
 827
 828         if (!buffer_string_is_empty(p->conf.show_readme)) {
 829                 /* if we have a README file, display it in <pre class="readme"></pre> */
 830
 831                 buffer_copy_buffer(p->tmp_buf,  con->physical.path);
 832                 buffer_append_slash(p->tmp_buf);
 833                 buffer_append_string_buffer(p->tmp_buf, p->conf.show_readme);
 834
 835                 http_list_directory_include_file(out, p->tmp_buf, "readme", p->conf.encode_readme);
 836         }
 837
 838         if(p->conf.auto_layout) {
 839
 840                 buffer_append_string_len(out, CONST_STR_LEN(
 841                         "<div class=\"foot\">"
 842                 ));
 843
 844                 if (!buffer_string_is_empty(p->conf.set_footer)) {
 845                         buffer_append_string_buffer(out, p->conf.set_footer);
 846                 } else {
 847                         buffer_append_string_buffer(out, con->conf.server_tag);
 848                 }
 849
 850                 buffer_append_string_len(out, CONST_STR_LEN(
 851                         "</div>\n"
 852                 ));
 853
 854                 if (!buffer_string_is_empty(p->conf.external_js)) {
 855                         buffer_append_string_len(out, CONST_STR_LEN("<script type=\"text/javascript\" src=\""));
 856                         buffer_append_string_buffer(out, p->conf.external_js);
 857                         buffer_append_string_len(out, CONST_STR_LEN("\"></script>\n"));
 858                 } else if (buffer_is_empty(p->conf.external_js)) {
 859                         http_dirlist_append_js_table_resort(out, con);
 860                 }
 861
 862                 buffer_append_string_len(out, CONST_STR_LEN(
 863                         "</body>\n"
 864                         "</html>\n"
 865                 ));
 866         }
 867 }
 868
 869 static int http_list_directory(server *srv, connection *con, plugin_data *p, buffer *dir) {
 870         DIR *dp;
 871         buffer *out;
 872         struct dirent *dent;
 873         struct stat st;
 874         char *path, *path_file;
 875         size_t i;
 876         int hide_dotfiles = p->conf.hide_dot_files;
 877         dirls_list_t dirs, files, *list;
 878         dirls_entry_t *tmp;
 879         char sizebuf[sizeof("999.9K")];
 880         char datebuf[sizeof("2005-Jan-01 22:23:24")];
 881         size_t k;
 882         const char *content_type;
 883         long name_max;
 884 #if defined(HAVE_XATTR) || defined(HAVE_EXTATTR)
 885         char attrval[128];
 886         int attrlen;
 887 #endif
 888 #ifdef HAVE_LOCALTIME_R
 889         struct tm tm;
 890 #endif
 891
 892         if (buffer_string_is_empty(dir)) return -1;
 893
 894         i = buffer_string_length(dir);
 895
 896 #ifdef HAVE_PATHCONF
 897         if (0 >= (name_max = pathconf(dir->ptr, _PC_NAME_MAX))) {
 898                 /* some broken fs (fuse) return 0 instead of -1 */
 899 #ifdef NAME_MAX
 900                 name_max = NAME_MAX;
 901 #else
 902                 name_max = 255; /* stupid default */
 903 #endif
 904         }
 905 #elif defined __WIN32
 906         name_max = FILENAME_MAX;
 907 #else
 908         name_max = NAME_MAX;
 909 #endif
 910
 911         path = malloc(i + name_max + 1);
 912         force_assert(NULL != path);
 913         memcpy(path, dir->ptr, i+1);
 914         path_file = path + i;
 915
 916         if (NULL == (dp = opendir(path))) {
 917                 log_error_write(srv, __FILE__, __LINE__, "sbs",
 918                         "opendir failed:", dir, strerror(errno));
 919
 920                 free(path);
 921                 return -1;
 922         }
 923
 924         dirs.ent   = (dirls_entry_t**) malloc(sizeof(dirls_entry_t*) * DIRLIST_BLOB_SIZE);
 925         force_assert(dirs.ent);
 926         dirs.size  = DIRLIST_BLOB_SIZE;
 927         dirs.used  = 0;
 928         files.ent  = (dirls_entry_t**) malloc(sizeof(dirls_entry_t*) * DIRLIST_BLOB_SIZE);
 929         force_assert(files.ent);
 930         files.size = DIRLIST_BLOB_SIZE;
 931         files.used = 0;
 932
 933         while ((dent = readdir(dp)) != NULL) {
 934                 unsigned short exclude_match = 0;
 935
 936                 if (dent->d_name[0] == '.') {
 937                         if (hide_dotfiles)
 938                                 continue;
 939                         if (dent->d_name[1] == '\0')
 940                                 continue;
 941                         if (dent->d_name[1] == '.' && dent->d_name[2] == '\0')
 942                                 continue;
 943                 }
 944
 945                 if (p->conf.hide_readme_file && !buffer_string_is_empty(p->conf.show_readme)) {
 946                         if (strcmp(dent->d_name, p->conf.show_readme->ptr) == 0)
 947                                 continue;
 948                 }
 949                 if (p->conf.hide_header_file && !buffer_string_is_empty(p->conf.show_header)) {
 950                         if (strcmp(dent->d_name, p->conf.show_header->ptr) == 0)
 951                                 continue;
 952                 }
 953
 954                 /* compare d_name against excludes array
 955                  * elements, skipping any that match.
 956                  */
 957 #ifdef HAVE_PCRE_H
 958                 for(i = 0; i < p->conf.excludes->used; i++) {
 959                         int n;
 960 #define N 10
 961                         int ovec[N * 3];
 962                         pcre *regex = p->conf.excludes->ptr[i]->regex;
 963
 964                         if ((n = pcre_exec(regex, NULL, dent->d_name,
 965                                     strlen(dent->d_name), 0, 0, ovec, 3 * N)) < 0) {
 966                                 if (n != PCRE_ERROR_NOMATCH) {
 967                                         log_error_write(srv, __FILE__, __LINE__, "sd",
 968                                                 "execution error while matching:", n);
 969
 970                                         /* aborting would require a lot of manual cleanup here.
 971                                          * skip instead (to not leak names that break pcre matching)
 972                                          */
 973                                         exclude_match = 1;
 974                                         break;
 975                                 }
 976                         }
 977                         else {
 978                                 exclude_match = 1;
 979                                 break;
 980                         }
 981                 }
 982
 983                 if (exclude_match) {
 984                         continue;
 985                 }
 986 #endif
 987
 988                 i = strlen(dent->d_name);
 989
 990                 /* NOTE: the manual says, d_name is never more than NAME_MAX
 991                  *       so this should actually not be a buffer-overflow-risk
 992                  */
 993                 if (i > (size_t)name_max) continue;
 994
 995                 memcpy(path_file, dent->d_name, i + 1);
 996                 if (stat(path, &st) != 0)
 997                         continue;
 998
 999                 list = &files;
1000                 if (S_ISDIR(st.st_mode))
1001                         list = &dirs;
1002
1003                 if (list->used == list->size) {
1004                         list->size += DIRLIST_BLOB_SIZE;
1005                         list->ent   = (dirls_entry_t**) realloc(list->ent, sizeof(dirls_entry_t*) * list->size);
1006                         force_assert(list->ent);
1007                 }
1008
1009                 tmp = (dirls_entry_t*) malloc(sizeof(dirls_entry_t) + 1 + i);
1010                 tmp->mtime = st.st_mtime;
1011                 tmp->size  = st.st_size;
1012                 tmp->namelen = i;
1013                 memcpy(DIRLIST_ENT_NAME(tmp), dent->d_name, i + 1);
1014
1015                 list->ent[list->used++] = tmp;
1016         }
1017         closedir(dp);
1018
1019         if (dirs.used) http_dirls_sort(dirs.ent, dirs.used);
1020
1021         if (files.used) http_dirls_sort(files.ent, files.used);
1022
1023         out = buffer_init();
1024         http_list_directory_header(srv, con, p, out);
1025
1026         /* directories */
1027         for (i = 0; i < dirs.used; i++) {
1028                 tmp = dirs.ent[i];
1029
1030 #ifdef HAVE_LOCALTIME_R
1031                 localtime_r(&(tmp->mtime), &tm);
1032                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", &tm);
1033 #else
1034                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", localtime(&(tmp->mtime)));
1035 #endif
1036
1037                 buffer_append_string_len(out, CONST_STR_LEN("<tr class=\"d\"><td class=\"n\"><a href=\""));
1038                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_REL_URI_PART);
1039                 buffer_append_string_len(out, CONST_STR_LEN("/\">"));
1040                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_MINIMAL_XML);
1041                 buffer_append_string_len(out, CONST_STR_LEN("</a>/</td><td class=\"m\">"));
1042                 buffer_append_string_len(out, datebuf, sizeof(datebuf) - 1);
1043                 buffer_append_string_len(out, CONST_STR_LEN("</td><td class=\"s\">- &nbsp;</td><td class=\"t\">Directory</td></tr>\n"));
1044
1045                 free(tmp);
1046         }
1047
1048         /* files */
1049         for (i = 0; i < files.used; i++) {
1050                 tmp = files.ent[i];
1051
1052                 content_type = NULL;
1053 #if defined(HAVE_XATTR)
1054                 if (con->conf.use_xattr) {
1055                         memcpy(path_file, DIRLIST_ENT_NAME(tmp), tmp->namelen + 1);
1056                         attrlen = sizeof(attrval) - 1;
1057                         if (attr_get(path, srv->srvconf.xattr_name->ptr, attrval, &attrlen, 0) == 0) {
1058                                 attrval[attrlen] = '\0';
1059                                 content_type = attrval;
1060                         }
1061                 }
1062 #elif defined(HAVE_EXTATTR)
1063                 if (con->conf.use_xattr) {
1064                         memcpy(path_file, DIRLIST_ENT_NAME(tmp), tmp->namelen + 1);
1065                         if(-1 != (attrlen = extattr_get_file(path, EXTATTR_NAMESPACE_USER, srv->srvconf.xattr_name->ptr, attrval, sizeof(attrval)-1))) {
1066                                 attrval[attrlen] = '\0';
1067                                 content_type = attrval;
1068                         }
1069                 }
1070 #endif
1071
1072                 if (content_type == NULL) {
1073                         content_type = "application/octet-stream";
1074                         for (k = 0; k < con->conf.mimetypes->used; k++) {
1075                                 data_string *ds = (data_string *)con->conf.mimetypes->data[k];
1076                                 size_t ct_len;
1077
1078                                 if (buffer_is_empty(ds->key))
1079                                         continue;
1080
1081                                 ct_len = buffer_string_length(ds->key);
1082                                 if (tmp->namelen < ct_len)
1083                                         continue;
1084
1085                                 if (0 == strncasecmp(DIRLIST_ENT_NAME(tmp) + tmp->namelen - ct_len, ds->key->ptr, ct_len)) {
1086                                         content_type = ds->value->ptr;
1087                                         break;
1088                                 }
1089                         }
1090                 }
1091
1092 #ifdef HAVE_LOCALTIME_R
1093                 localtime_r(&(tmp->mtime), &tm);
1094                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", &tm);
1095 #else
1096                 strftime(datebuf, sizeof(datebuf), "%Y-%b-%d %H:%M:%S", localtime(&(tmp->mtime)));
1097 #endif
1098                 http_list_directory_sizefmt(sizebuf, sizeof(sizebuf), tmp->size);
1099
1100                 buffer_append_string_len(out, CONST_STR_LEN("<tr><td class=\"n\"><a href=\""));
1101                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_REL_URI_PART);
1102                 buffer_append_string_len(out, CONST_STR_LEN("\">"));
1103                 buffer_append_string_encoded(out, DIRLIST_ENT_NAME(tmp), tmp->namelen, ENCODING_MINIMAL_XML);
1104                 buffer_append_string_len(out, CONST_STR_LEN("</a></td><td class=\"m\">"));
1105                 buffer_append_string_len(out, datebuf, sizeof(datebuf) - 1);
1106                 buffer_append_string_len(out, CONST_STR_LEN("</td><td class=\"s\">"));
1107                 buffer_append_string(out, sizebuf);
1108                 buffer_append_string_len(out, CONST_STR_LEN("</td><td class=\"t\">"));
1109                 buffer_append_string(out, content_type);
1110                 buffer_append_string_len(out, CONST_STR_LEN("</td></tr>\n"));
1111
1112                 free(tmp);
1113         }
1114
1115         free(files.ent);
1116         free(dirs.ent);
1117         free(path);
1118
1119         http_list_directory_footer(srv, con, p, out);
1120
1121         /* Insert possible charset to Content-Type */
1122         if (buffer_string_is_empty(p->conf.encoding)) {
1123                 response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("text/html"));
1124         } else {
1125                 buffer_copy_string_len(p->content_charset, CONST_STR_LEN("text/html; charset="));
1126                 buffer_append_string_buffer(p->content_charset, p->conf.encoding);
1127                 response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(p->content_charset));
1128         }
1129
1130         con->file_finished = 1;
1131         chunkqueue_append_buffer(con->write_queue, out);
1132         buffer_free(out);
1133
1134         return 0;
1135 }
1136
1137
1138
1139 URIHANDLER_FUNC(mod_dirlisting_subrequest) {
1140         plugin_data *p = p_d;
1141         stat_cache_entry *sce = NULL;
1142
1143         UNUSED(srv);
1144
1145         /* we only handle GET and HEAD */
1146         switch(con->request.http_method) {
1147         case HTTP_METHOD_GET:
1148         case HTTP_METHOD_HEAD:
1149                 break;
1150         default:
1151                 return HANDLER_GO_ON;
1152         }
1153
1154         if (con->mode != DIRECT) return HANDLER_GO_ON;
1155
1156         if (buffer_is_empty(con->physical.path)) return HANDLER_GO_ON;
1157         if (buffer_is_empty(con->uri.path)) return HANDLER_GO_ON;
1158         if (con->uri.path->ptr[buffer_string_length(con->uri.path) - 1] != '/') return HANDLER_GO_ON;
1159
1160         mod_dirlisting_patch_connection(srv, con, p);
1161
1162         if (!p->conf.dir_listing) return HANDLER_GO_ON;
1163
1164         if (con->conf.log_request_handling) {
1165                 log_error_write(srv, __FILE__, __LINE__,  "s",  "-- handling the request as Dir-Listing");
1166                 log_error_write(srv, __FILE__, __LINE__,  "sb", "URI          :", con->uri.path);
1167         }
1168
1169         if (HANDLER_ERROR == stat_cache_get_entry(srv, con, con->physical.path, &sce)) {
1170                 log_error_write(srv, __FILE__, __LINE__,  "SB", "stat_cache_get_entry failed: ", con->physical.path);
1171                 SEGFAULT();
1172         }
1173
1174         if (!S_ISDIR(sce->st.st_mode)) return HANDLER_GO_ON;
1175
1176         if (http_list_directory(srv, con, p, con->physical.path)) {
1177                 /* dirlisting failed */
1178                 con->http_status = 403;
1179         }
1180
1181         buffer_reset(con->physical.path);
1182
1183         /* not found */
1184         return HANDLER_FINISHED;
1185 }
1186
1187 /* this function is called at dlopen() time and inits the callbacks */
1188
1189 int mod_dirlisting_plugin_init(plugin *p);
1190 int mod_dirlisting_plugin_init(plugin *p) {
1191         p->version     = LIGHTTPD_VERSION_ID;
1192         p->name        = buffer_init_string("dirlisting");
1193
1194         p->init        = mod_dirlisting_init;
1195         p->handle_subrequest_start  = mod_dirlisting_subrequest;
1196         p->set_defaults  = mod_dirlisting_set_defaults;
1197         p->cleanup     = mod_dirlisting_free;
1198
1199         p->data        = NULL;
1200
1201         return 0;
1202 }