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