Annotation of mandoc/cgi.c, Revision 1.171
1.171 ! schwarze 1: /* $Id: cgi.c,v 1.170 2020/01/10 12:54:43 schwarze Exp $ */
1.6 kristaps 2: /*
1.42 kristaps 3: * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.168 schwarze 4: * Copyright (c) 2014-2019 Ingo Schwarze <schwarze@usta.de>
1.6 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
1.105 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.6 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.105 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.6 kristaps 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #include "config.h"
1.93 schwarze 19:
20: #include <sys/types.h>
1.95 schwarze 21: #include <sys/time.h>
1.6 kristaps 22:
23: #include <ctype.h>
1.147 schwarze 24: #if HAVE_ERR
1.128 schwarze 25: #include <err.h>
1.147 schwarze 26: #endif
1.58 schwarze 27: #include <errno.h>
1.1 kristaps 28: #include <fcntl.h>
1.6 kristaps 29: #include <limits.h>
1.92 schwarze 30: #include <stdint.h>
1.1 kristaps 31: #include <stdio.h>
32: #include <stdlib.h>
33: #include <string.h>
1.6 kristaps 34: #include <unistd.h>
1.1 kristaps 35:
1.108 schwarze 36: #include "mandoc_aux.h"
1.4 schwarze 37: #include "mandoc.h"
1.108 schwarze 38: #include "roff.h"
1.111 schwarze 39: #include "mdoc.h"
1.112 schwarze 40: #include "man.h"
1.162 schwarze 41: #include "mandoc_parse.h"
1.8 kristaps 42: #include "main.h"
1.105 schwarze 43: #include "manconf.h"
1.52 schwarze 44: #include "mansearch.h"
1.67 schwarze 45: #include "cgi.h"
1.1 kristaps 46:
1.20 kristaps 47: /*
48: * A query as passed to the search function.
49: */
50: struct query {
1.83 schwarze 51: char *manpath; /* desired manual directory */
52: char *arch; /* architecture */
53: char *sec; /* manual section */
1.85 schwarze 54: char *query; /* unparsed query expression */
1.65 schwarze 55: int equal; /* match whole names, not substrings */
1.20 kristaps 56: };
57:
1.1 kristaps 58: struct req {
1.58 schwarze 59: struct query q;
60: char **p; /* array of available manpaths */
61: size_t psz; /* number of available manpaths */
1.121 schwarze 62: int isquery; /* QUERY_STRING used, not PATH_INFO */
1.1 kristaps 63: };
64:
1.131 schwarze 65: enum focus {
66: FOCUS_NONE = 0,
67: FOCUS_QUERY
68: };
69:
1.6 kristaps 70: static void html_print(const char *);
1.10 kristaps 71: static void html_putchar(char);
1.104 schwarze 72: static int http_decode(char *);
1.159 schwarze 73: static void http_encode(const char *p);
1.129 schwarze 74: static void parse_manpath_conf(struct req *);
75: static void parse_path_info(struct req *req, const char *path);
76: static void parse_query_string(struct req *, const char *);
1.72 schwarze 77: static void pg_error_badrequest(const char *);
78: static void pg_error_internal(void);
79: static void pg_index(const struct req *);
1.168 schwarze 80: static void pg_noresult(const struct req *, int, const char *,
81: const char *);
1.149 schwarze 82: static void pg_redirect(const struct req *, const char *);
1.66 schwarze 83: static void pg_search(const struct req *);
1.72 schwarze 84: static void pg_searchres(const struct req *,
85: struct manpage *, size_t);
1.79 schwarze 86: static void pg_show(struct req *, const char *);
1.150 schwarze 87: static void resp_begin_html(int, const char *, const char *);
1.6 kristaps 88: static void resp_begin_http(int, const char *);
1.129 schwarze 89: static void resp_catman(const struct req *, const char *);
1.114 schwarze 90: static void resp_copy(const char *);
1.6 kristaps 91: static void resp_end_html(void);
1.129 schwarze 92: static void resp_format(const struct req *, const char *);
1.131 schwarze 93: static void resp_searchform(const struct req *, enum focus);
1.70 schwarze 94: static void resp_show(const struct req *, const char *);
1.85 schwarze 95: static void set_query_attr(char **, char **);
1.159 schwarze 96: static int validate_arch(const char *);
1.85 schwarze 97: static int validate_filename(const char *);
98: static int validate_manpath(const struct req *, const char *);
99: static int validate_urifrag(const char *);
1.6 kristaps 100:
1.119 schwarze 101: static const char *scriptname = SCRIPT_NAME;
1.1 kristaps 102:
1.70 schwarze 103: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.68 schwarze 104: static const char *const sec_numbers[] = {
105: "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
106: };
107: static const char *const sec_names[] = {
108: "All Sections",
109: "1 - General Commands",
110: "2 - System Calls",
1.96 schwarze 111: "3 - Library Functions",
112: "3p - Perl Library",
113: "4 - Device Drivers",
1.68 schwarze 114: "5 - File Formats",
115: "6 - Games",
1.96 schwarze 116: "7 - Miscellaneous Information",
117: "8 - System Manager\'s Manual",
118: "9 - Kernel Developer\'s Manual"
1.68 schwarze 119: };
120: static const int sec_MAX = sizeof(sec_names) / sizeof(char *);
121:
122: static const char *const arch_names[] = {
1.146 schwarze 123: "amd64", "alpha", "armv7", "arm64",
1.137 schwarze 124: "hppa", "i386", "landisk",
1.125 schwarze 125: "loongson", "luna88k", "macppc", "mips64",
1.140 schwarze 126: "octeon", "sgi", "socppc", "sparc64",
1.137 schwarze 127: "amiga", "arc", "armish", "arm32",
128: "atari", "aviion", "beagle", "cats",
129: "hppa64", "hp300",
1.125 schwarze 130: "ia64", "mac68k", "mvme68k", "mvme88k",
131: "mvmeppc", "palm", "pc532", "pegasos",
1.139 schwarze 132: "pmax", "powerpc", "solbourne", "sparc",
1.140 schwarze 133: "sun3", "vax", "wgrisc", "x68k",
134: "zaurus"
1.68 schwarze 135: };
136: static const int arch_MAX = sizeof(arch_names) / sizeof(char *);
137:
1.6 kristaps 138: /*
1.20 kristaps 139: * Print a character, escaping HTML along the way.
140: * This will pass non-ASCII straight to output: be warned!
141: */
1.10 kristaps 142: static void
143: html_putchar(char c)
144: {
145:
146: switch (c) {
1.155 schwarze 147: case '"':
1.141 schwarze 148: printf(""");
1.10 kristaps 149: break;
1.155 schwarze 150: case '&':
1.10 kristaps 151: printf("&");
152: break;
1.155 schwarze 153: case '>':
1.10 kristaps 154: printf(">");
155: break;
1.155 schwarze 156: case '<':
1.10 kristaps 157: printf("<");
158: break;
159: default:
160: putchar((unsigned char)c);
161: break;
162: }
163: }
1.57 schwarze 164:
1.6 kristaps 165: /*
1.20 kristaps 166: * Call through to html_putchar().
167: * Accepts NULL strings.
1.6 kristaps 168: */
1.1 kristaps 169: static void
1.6 kristaps 170: html_print(const char *p)
1.1 kristaps 171: {
1.104 schwarze 172:
1.6 kristaps 173: if (NULL == p)
174: return;
1.1 kristaps 175: while ('\0' != *p)
1.10 kristaps 176: html_putchar(*p++);
1.1 kristaps 177: }
178:
179: /*
1.83 schwarze 180: * Transfer the responsibility for the allocated string *val
181: * to the query structure.
1.1 kristaps 182: */
183: static void
1.83 schwarze 184: set_query_attr(char **attr, char **val)
1.1 kristaps 185: {
186:
1.83 schwarze 187: free(*attr);
188: if (**val == '\0') {
189: *attr = NULL;
190: free(*val);
191: } else
192: *attr = *val;
193: *val = NULL;
194: }
195:
196: /*
197: * Parse the QUERY_STRING for key-value pairs
198: * and store the values into the query structure.
199: */
200: static void
1.129 schwarze 201: parse_query_string(struct req *req, const char *qs)
1.83 schwarze 202: {
203: char *key, *val;
204: size_t keysz, valsz;
205:
1.121 schwarze 206: req->isquery = 1;
1.83 schwarze 207: req->q.manpath = NULL;
208: req->q.arch = NULL;
209: req->q.sec = NULL;
1.85 schwarze 210: req->q.query = NULL;
1.83 schwarze 211: req->q.equal = 1;
212:
213: key = val = NULL;
214: while (*qs != '\0') {
1.24 kristaps 215:
1.83 schwarze 216: /* Parse one key. */
217:
218: keysz = strcspn(qs, "=;&");
219: key = mandoc_strndup(qs, keysz);
220: qs += keysz;
221: if (*qs != '=')
222: goto next;
223:
224: /* Parse one value. */
225:
226: valsz = strcspn(++qs, ";&");
227: val = mandoc_strndup(qs, valsz);
228: qs += valsz;
229:
230: /* Decode and catch encoding errors. */
1.1 kristaps 231:
1.83 schwarze 232: if ( ! (http_decode(key) && http_decode(val)))
233: goto next;
1.1 kristaps 234:
1.83 schwarze 235: /* Handle key-value pairs. */
1.1 kristaps 236:
1.83 schwarze 237: if ( ! strcmp(key, "query"))
1.85 schwarze 238: set_query_attr(&req->q.query, &val);
1.1 kristaps 239:
1.83 schwarze 240: else if ( ! strcmp(key, "apropos"))
241: req->q.equal = !strcmp(val, "0");
242:
243: else if ( ! strcmp(key, "manpath")) {
1.73 schwarze 244: #ifdef COMPAT_OLDURI
1.83 schwarze 245: if ( ! strncmp(val, "OpenBSD ", 8)) {
1.73 schwarze 246: val[7] = '-';
247: if ('C' == val[8])
248: val[8] = 'c';
249: }
250: #endif
1.83 schwarze 251: set_query_attr(&req->q.manpath, &val);
252: }
253:
254: else if ( ! (strcmp(key, "sec")
1.73 schwarze 255: #ifdef COMPAT_OLDURI
1.83 schwarze 256: && strcmp(key, "sektion")
1.73 schwarze 257: #endif
1.83 schwarze 258: )) {
259: if ( ! strcmp(val, "0"))
260: *val = '\0';
261: set_query_attr(&req->q.sec, &val);
1.65 schwarze 262: }
1.83 schwarze 263:
264: else if ( ! strcmp(key, "arch")) {
265: if ( ! strcmp(val, "default"))
266: *val = '\0';
267: set_query_attr(&req->q.arch, &val);
268: }
269:
270: /*
271: * The key must be freed in any case.
272: * The val may have been handed over to the query
273: * structure, in which case it is now NULL.
274: */
275: next:
276: free(key);
277: key = NULL;
278: free(val);
279: val = NULL;
280:
281: if (*qs != '\0')
282: qs++;
1.24 kristaps 283: }
1.1 kristaps 284: }
285:
286: /*
1.6 kristaps 287: * HTTP-decode a string. The standard explanation is that this turns
288: * "%4e+foo" into "n foo" in the regular way. This is done in-place
289: * over the allocated string.
1.1 kristaps 290: */
291: static int
1.24 kristaps 292: http_decode(char *p)
1.1 kristaps 293: {
294: char hex[3];
1.63 schwarze 295: char *q;
1.1 kristaps 296: int c;
297:
298: hex[2] = '\0';
299:
1.63 schwarze 300: q = p;
301: for ( ; '\0' != *p; p++, q++) {
1.1 kristaps 302: if ('%' == *p) {
303: if ('\0' == (hex[0] = *(p + 1)))
1.109 schwarze 304: return 0;
1.1 kristaps 305: if ('\0' == (hex[1] = *(p + 2)))
1.109 schwarze 306: return 0;
1.1 kristaps 307: if (1 != sscanf(hex, "%x", &c))
1.109 schwarze 308: return 0;
1.1 kristaps 309: if ('\0' == c)
1.109 schwarze 310: return 0;
1.1 kristaps 311:
1.63 schwarze 312: *q = (char)c;
313: p += 2;
1.1 kristaps 314: } else
1.63 schwarze 315: *q = '+' == *p ? ' ' : *p;
1.1 kristaps 316: }
317:
1.63 schwarze 318: *q = '\0';
1.109 schwarze 319: return 1;
1.1 kristaps 320: }
321:
1.6 kristaps 322: static void
1.159 schwarze 323: http_encode(const char *p)
324: {
325: for (; *p != '\0'; p++) {
326: if (isalnum((unsigned char)*p) == 0 &&
327: strchr("-._~", *p) == NULL)
1.166 schwarze 328: printf("%%%2.2X", (unsigned char)*p);
1.159 schwarze 329: else
330: putchar(*p);
331: }
332: }
333:
334: static void
1.6 kristaps 335: resp_begin_http(int code, const char *msg)
336: {
337:
338: if (200 != code)
1.62 schwarze 339: printf("Status: %d %s\r\n", code, msg);
1.6 kristaps 340:
1.62 schwarze 341: printf("Content-Type: text/html; charset=utf-8\r\n"
342: "Cache-Control: no-cache\r\n"
1.169 schwarze 343: "Content-Security-Policy: default-src 'none'; "
344: "style-src 'self' 'unsafe-inline'\r\n"
1.62 schwarze 345: "Pragma: no-cache\r\n"
346: "\r\n");
1.6 kristaps 347:
348: fflush(stdout);
349: }
350:
351: static void
1.114 schwarze 352: resp_copy(const char *filename)
353: {
354: char buf[4096];
355: ssize_t sz;
356: int fd;
357:
358: if ((fd = open(filename, O_RDONLY)) != -1) {
359: fflush(stdout);
360: while ((sz = read(fd, buf, sizeof(buf))) > 0)
361: write(STDOUT_FILENO, buf, sz);
1.138 schwarze 362: close(fd);
1.114 schwarze 363: }
364: }
365:
366: static void
1.150 schwarze 367: resp_begin_html(int code, const char *msg, const char *file)
1.6 kristaps 368: {
1.150 schwarze 369: char *cp;
1.6 kristaps 370:
371: resp_begin_http(code, msg);
372:
1.98 kristaps 373: printf("<!DOCTYPE html>\n"
1.126 schwarze 374: "<html>\n"
375: "<head>\n"
1.143 schwarze 376: " <meta charset=\"UTF-8\"/>\n"
1.157 schwarze 377: " <meta name=\"viewport\""
378: " content=\"width=device-width, initial-scale=1.0\">\n"
1.143 schwarze 379: " <link rel=\"stylesheet\" href=\"%s/mandoc.css\""
1.126 schwarze 380: " type=\"text/css\" media=\"all\">\n"
1.150 schwarze 381: " <title>",
382: CSS_DIR);
383: if (file != NULL) {
384: if ((cp = strrchr(file, '/')) != NULL)
385: file = cp + 1;
386: if ((cp = strrchr(file, '.')) != NULL) {
387: printf("%.*s(%s) - ", (int)(cp - file), file, cp + 1);
388: } else
389: printf("%s - ", file);
390: }
391: printf("%s</title>\n"
1.126 schwarze 392: "</head>\n"
1.142 schwarze 393: "<body>\n",
1.150 schwarze 394: CUSTOMIZE_TITLE);
1.114 schwarze 395:
396: resp_copy(MAN_DIR "/header.html");
1.6 kristaps 397: }
398:
399: static void
400: resp_end_html(void)
401: {
402:
1.114 schwarze 403: resp_copy(MAN_DIR "/footer.html");
404:
1.126 schwarze 405: puts("</body>\n"
406: "</html>");
1.6 kristaps 407: }
408:
409: static void
1.131 schwarze 410: resp_searchform(const struct req *req, enum focus focus)
1.6 kristaps 411: {
1.27 kristaps 412: int i;
1.13 kristaps 413:
1.171 ! schwarze 414: printf("<form action=\"/%s\" method=\"get\" "
! 415: "autocomplete=\"off\" autocapitalize=\"none\">\n"
1.143 schwarze 416: " <fieldset>\n"
417: " <legend>Manual Page Search Parameters</legend>\n",
1.58 schwarze 418: scriptname);
1.68 schwarze 419:
420: /* Write query input box. */
421:
1.158 schwarze 422: printf(" <input type=\"search\" name=\"query\" value=\"");
1.131 schwarze 423: if (req->q.query != NULL)
1.85 schwarze 424: html_print(req->q.query);
1.131 schwarze 425: printf( "\" size=\"40\"");
426: if (focus == FOCUS_QUERY)
427: printf(" autofocus");
428: puts(">");
1.68 schwarze 429:
1.132 schwarze 430: /* Write submission buttons. */
1.68 schwarze 431:
1.143 schwarze 432: printf( " <button type=\"submit\" name=\"apropos\" value=\"0\">"
1.132 schwarze 433: "man</button>\n"
1.143 schwarze 434: " <button type=\"submit\" name=\"apropos\" value=\"1\">"
435: "apropos</button>\n"
436: " <br/>\n");
1.68 schwarze 437:
438: /* Write section selector. */
439:
1.143 schwarze 440: puts(" <select name=\"sec\">");
1.68 schwarze 441: for (i = 0; i < sec_MAX; i++) {
1.143 schwarze 442: printf(" <option value=\"%s\"", sec_numbers[i]);
1.68 schwarze 443: if (NULL != req->q.sec &&
444: 0 == strcmp(sec_numbers[i], req->q.sec))
1.126 schwarze 445: printf(" selected=\"selected\"");
446: printf(">%s</option>\n", sec_names[i]);
1.68 schwarze 447: }
1.143 schwarze 448: puts(" </select>");
1.68 schwarze 449:
450: /* Write architecture selector. */
451:
1.143 schwarze 452: printf( " <select name=\"arch\">\n"
453: " <option value=\"default\"");
1.81 schwarze 454: if (NULL == req->q.arch)
1.126 schwarze 455: printf(" selected=\"selected\"");
456: puts(">All Architectures</option>");
1.68 schwarze 457: for (i = 0; i < arch_MAX; i++) {
1.158 schwarze 458: printf(" <option");
1.68 schwarze 459: if (NULL != req->q.arch &&
460: 0 == strcmp(arch_names[i], req->q.arch))
1.126 schwarze 461: printf(" selected=\"selected\"");
462: printf(">%s</option>\n", arch_names[i]);
1.68 schwarze 463: }
1.143 schwarze 464: puts(" </select>");
1.68 schwarze 465:
466: /* Write manpath selector. */
467:
1.27 kristaps 468: if (req->psz > 1) {
1.143 schwarze 469: puts(" <select name=\"manpath\">");
1.27 kristaps 470: for (i = 0; i < (int)req->psz; i++) {
1.158 schwarze 471: printf(" <option");
1.102 schwarze 472: if (strcmp(req->q.manpath, req->p[i]) == 0)
1.158 schwarze 473: printf(" selected=\"selected\"");
474: printf(">");
1.52 schwarze 475: html_print(req->p[i]);
1.126 schwarze 476: puts("</option>");
1.27 kristaps 477: }
1.143 schwarze 478: puts(" </select>");
1.27 kristaps 479: }
1.68 schwarze 480:
1.143 schwarze 481: puts(" </fieldset>\n"
1.142 schwarze 482: "</form>");
1.6 kristaps 483: }
484:
1.76 schwarze 485: static int
1.80 schwarze 486: validate_urifrag(const char *frag)
487: {
488:
489: while ('\0' != *frag) {
490: if ( ! (isalnum((unsigned char)*frag) ||
491: '-' == *frag || '.' == *frag ||
492: '/' == *frag || '_' == *frag))
1.109 schwarze 493: return 0;
1.80 schwarze 494: frag++;
495: }
1.109 schwarze 496: return 1;
1.80 schwarze 497: }
498:
499: static int
1.77 schwarze 500: validate_manpath(const struct req *req, const char* manpath)
501: {
502: size_t i;
503:
504: for (i = 0; i < req->psz; i++)
505: if ( ! strcmp(manpath, req->p[i]))
1.109 schwarze 506: return 1;
1.77 schwarze 507:
1.109 schwarze 508: return 0;
1.77 schwarze 509: }
510:
511: static int
1.159 schwarze 512: validate_arch(const char *arch)
513: {
514: int i;
515:
516: for (i = 0; i < arch_MAX; i++)
517: if (strcmp(arch, arch_names[i]) == 0)
518: return 1;
519:
520: return 0;
521: }
522:
523: static int
1.76 schwarze 524: validate_filename(const char *file)
525: {
526:
527: if ('.' == file[0] && '/' == file[1])
528: file += 2;
529:
1.109 schwarze 530: return ! (strstr(file, "../") || strstr(file, "/..") ||
531: (strncmp(file, "man", 3) && strncmp(file, "cat", 3)));
1.76 schwarze 532: }
533:
1.6 kristaps 534: static void
1.72 schwarze 535: pg_index(const struct req *req)
1.6 kristaps 536: {
537:
1.150 schwarze 538: resp_begin_html(200, NULL, NULL);
1.131 schwarze 539: resp_searchform(req, FOCUS_QUERY);
1.126 schwarze 540: printf("<p>\n"
1.86 schwarze 541: "This web interface is documented in the\n"
1.144 schwarze 542: "<a class=\"Xr\" href=\"/%s%sman.cgi.8\">man.cgi(8)</a>\n"
1.86 schwarze 543: "manual, and the\n"
1.144 schwarze 544: "<a class=\"Xr\" href=\"/%s%sapropos.1\">apropos(1)</a>\n"
1.69 schwarze 545: "manual explains the query syntax.\n"
1.126 schwarze 546: "</p>\n",
1.119 schwarze 547: scriptname, *scriptname == '\0' ? "" : "/",
548: scriptname, *scriptname == '\0' ? "" : "/");
1.6 kristaps 549: resp_end_html();
550: }
551:
552: static void
1.168 schwarze 553: pg_noresult(const struct req *req, int code, const char *http_msg,
554: const char *user_msg)
1.59 schwarze 555: {
1.168 schwarze 556: resp_begin_html(code, http_msg, NULL);
1.131 schwarze 557: resp_searchform(req, FOCUS_QUERY);
1.126 schwarze 558: puts("<p>");
1.168 schwarze 559: puts(user_msg);
1.126 schwarze 560: puts("</p>");
1.59 schwarze 561: resp_end_html();
562: }
563:
564: static void
1.72 schwarze 565: pg_error_badrequest(const char *msg)
1.9 kristaps 566: {
567:
1.150 schwarze 568: resp_begin_html(400, "Bad Request", NULL);
1.126 schwarze 569: puts("<h1>Bad Request</h1>\n"
570: "<p>\n");
1.59 schwarze 571: puts(msg);
572: printf("Try again from the\n"
1.126 schwarze 573: "<a href=\"/%s\">main page</a>.\n"
574: "</p>", scriptname);
1.9 kristaps 575: resp_end_html();
576: }
577:
578: static void
1.72 schwarze 579: pg_error_internal(void)
1.7 kristaps 580: {
1.150 schwarze 581: resp_begin_html(500, "Internal Server Error", NULL);
1.126 schwarze 582: puts("<p>Internal Server Error</p>");
1.7 kristaps 583: resp_end_html();
584: }
585:
586: static void
1.149 schwarze 587: pg_redirect(const struct req *req, const char *name)
588: {
1.153 schwarze 589: printf("Status: 303 See Other\r\n"
590: "Location: /");
1.149 schwarze 591: if (*scriptname != '\0')
592: printf("%s/", scriptname);
593: if (strcmp(req->q.manpath, req->p[0]))
594: printf("%s/", req->q.manpath);
595: if (req->q.arch != NULL)
596: printf("%s/", req->q.arch);
1.159 schwarze 597: http_encode(name);
598: if (req->q.sec != NULL) {
599: putchar('.');
600: http_encode(req->q.sec);
601: }
1.149 schwarze 602: printf("\r\nContent-Type: text/html; charset=utf-8\r\n\r\n");
603: }
604:
605: static void
1.72 schwarze 606: pg_searchres(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 607: {
1.81 schwarze 608: char *arch, *archend;
1.120 schwarze 609: const char *sec;
610: size_t i, iuse;
1.81 schwarze 611: int archprio, archpriouse;
1.70 schwarze 612: int prio, priouse;
1.19 kristaps 613:
1.76 schwarze 614: for (i = 0; i < sz; i++) {
615: if (validate_filename(r[i].file))
616: continue;
1.128 schwarze 617: warnx("invalid filename %s in %s database",
1.76 schwarze 618: r[i].file, req->q.manpath);
619: pg_error_internal();
620: return;
621: }
622:
1.121 schwarze 623: if (req->isquery && sz == 1) {
1.6 kristaps 624: /*
625: * If we have just one result, then jump there now
626: * without any delay.
627: */
1.153 schwarze 628: printf("Status: 303 See Other\r\n"
629: "Location: /");
630: if (*scriptname != '\0')
631: printf("%s/", scriptname);
632: if (strcmp(req->q.manpath, req->p[0]))
633: printf("%s/", req->q.manpath);
634: printf("%s\r\n"
635: "Content-Type: text/html; charset=utf-8\r\n\r\n",
636: r[0].file);
1.6 kristaps 637: return;
638: }
639:
1.70 schwarze 640: /*
641: * In man(1) mode, show one of the pages
642: * even if more than one is found.
643: */
644:
1.150 schwarze 645: iuse = 0;
1.123 schwarze 646: if (req->q.equal || sz == 1) {
1.120 schwarze 647: priouse = 20;
1.81 schwarze 648: archpriouse = 3;
1.70 schwarze 649: for (i = 0; i < sz; i++) {
1.120 schwarze 650: sec = r[i].file;
651: sec += strcspn(sec, "123456789");
652: if (sec[0] == '\0')
1.70 schwarze 653: continue;
1.120 schwarze 654: prio = sec_prios[sec[0] - '1'];
655: if (sec[1] != '/')
656: prio += 10;
657: if (req->q.arch == NULL) {
1.81 schwarze 658: archprio =
1.120 schwarze 659: ((arch = strchr(sec + 1, '/'))
660: == NULL) ? 3 :
661: ((archend = strchr(arch + 1, '/'))
662: == NULL) ? 0 :
1.81 schwarze 663: strncmp(arch, "amd64/",
664: archend - arch) ? 2 : 1;
665: if (archprio < archpriouse) {
666: archpriouse = archprio;
667: priouse = prio;
668: iuse = i;
669: continue;
670: }
671: if (archprio > archpriouse)
672: continue;
673: }
1.70 schwarze 674: if (prio >= priouse)
675: continue;
676: priouse = prio;
677: iuse = i;
678: }
1.150 schwarze 679: resp_begin_html(200, NULL, r[iuse].file);
680: } else
681: resp_begin_html(200, NULL, NULL);
682:
683: resp_searchform(req,
684: req->q.equal || sz == 1 ? FOCUS_NONE : FOCUS_QUERY);
685:
686: if (sz > 1) {
687: puts("<table class=\"results\">");
688: for (i = 0; i < sz; i++) {
689: printf(" <tr>\n"
690: " <td>"
1.151 schwarze 691: "<a class=\"Xr\" href=\"/");
692: if (*scriptname != '\0')
693: printf("%s/", scriptname);
694: if (strcmp(req->q.manpath, req->p[0]))
695: printf("%s/", req->q.manpath);
696: printf("%s\">", r[i].file);
1.150 schwarze 697: html_print(r[i].names);
698: printf("</a></td>\n"
699: " <td><span class=\"Nd\">");
700: html_print(r[i].output);
701: puts("</span></td>\n"
702: " </tr>");
703: }
704: puts("</table>");
705: }
706:
707: if (req->q.equal || sz == 1) {
708: puts("<hr>");
1.70 schwarze 709: resp_show(req, r[iuse].file);
710: }
711:
1.6 kristaps 712: resp_end_html();
713: }
714:
1.1 kristaps 715: static void
1.129 schwarze 716: resp_catman(const struct req *req, const char *file)
1.9 kristaps 717: {
1.10 kristaps 718: FILE *f;
1.115 schwarze 719: char *p;
720: size_t sz;
721: ssize_t len;
1.10 kristaps 722: int i;
723: int italic, bold;
1.9 kristaps 724:
1.115 schwarze 725: if ((f = fopen(file, "r")) == NULL) {
1.126 schwarze 726: puts("<p>You specified an invalid manual file.</p>");
1.9 kristaps 727: return;
728: }
729:
1.126 schwarze 730: puts("<div class=\"catman\">\n"
731: "<pre>");
1.10 kristaps 732:
1.115 schwarze 733: p = NULL;
734: sz = 0;
735:
736: while ((len = getline(&p, &sz, f)) != -1) {
1.10 kristaps 737: bold = italic = 0;
1.115 schwarze 738: for (i = 0; i < len - 1; i++) {
1.104 schwarze 739: /*
1.10 kristaps 740: * This means that the catpage is out of state.
741: * Ignore it and keep going (although the
742: * catpage is bogus).
743: */
744:
745: if ('\b' == p[i] || '\n' == p[i])
746: continue;
747:
748: /*
749: * Print a regular character.
750: * Close out any bold/italic scopes.
751: * If we're in back-space mode, make sure we'll
752: * have something to enter when we backspace.
753: */
754:
755: if ('\b' != p[i + 1]) {
756: if (italic)
1.126 schwarze 757: printf("</i>");
1.10 kristaps 758: if (bold)
1.126 schwarze 759: printf("</b>");
1.10 kristaps 760: italic = bold = 0;
761: html_putchar(p[i]);
762: continue;
1.115 schwarze 763: } else if (i + 2 >= len)
1.10 kristaps 764: continue;
765:
766: /* Italic mode. */
767:
768: if ('_' == p[i]) {
769: if (bold)
1.126 schwarze 770: printf("</b>");
1.10 kristaps 771: if ( ! italic)
1.126 schwarze 772: printf("<i>");
1.10 kristaps 773: bold = 0;
774: italic = 1;
775: i += 2;
776: html_putchar(p[i]);
777: continue;
778: }
779:
1.104 schwarze 780: /*
1.10 kristaps 781: * Handle funny behaviour troff-isms.
782: * These grok'd from the original man2html.c.
783: */
784:
785: if (('+' == p[i] && 'o' == p[i + 2]) ||
786: ('o' == p[i] && '+' == p[i + 2]) ||
787: ('|' == p[i] && '=' == p[i + 2]) ||
788: ('=' == p[i] && '|' == p[i + 2]) ||
789: ('*' == p[i] && '=' == p[i + 2]) ||
790: ('=' == p[i] && '*' == p[i + 2]) ||
791: ('*' == p[i] && '|' == p[i + 2]) ||
792: ('|' == p[i] && '*' == p[i + 2])) {
793: if (italic)
1.126 schwarze 794: printf("</i>");
1.10 kristaps 795: if (bold)
1.126 schwarze 796: printf("</b>");
1.10 kristaps 797: italic = bold = 0;
798: putchar('*');
799: i += 2;
800: continue;
801: } else if (('|' == p[i] && '-' == p[i + 2]) ||
802: ('-' == p[i] && '|' == p[i + 1]) ||
803: ('+' == p[i] && '-' == p[i + 1]) ||
804: ('-' == p[i] && '+' == p[i + 1]) ||
805: ('+' == p[i] && '|' == p[i + 1]) ||
806: ('|' == p[i] && '+' == p[i + 1])) {
807: if (italic)
1.126 schwarze 808: printf("</i>");
1.10 kristaps 809: if (bold)
1.126 schwarze 810: printf("</b>");
1.10 kristaps 811: italic = bold = 0;
812: putchar('+');
813: i += 2;
814: continue;
815: }
816:
817: /* Bold mode. */
1.104 schwarze 818:
1.10 kristaps 819: if (italic)
1.126 schwarze 820: printf("</i>");
1.10 kristaps 821: if ( ! bold)
1.126 schwarze 822: printf("<b>");
1.10 kristaps 823: bold = 1;
824: italic = 0;
825: i += 2;
826: html_putchar(p[i]);
827: }
828:
1.104 schwarze 829: /*
1.10 kristaps 830: * Clean up the last character.
1.104 schwarze 831: * We can get to a newline; don't print that.
1.10 kristaps 832: */
1.9 kristaps 833:
1.10 kristaps 834: if (italic)
1.126 schwarze 835: printf("</i>");
1.10 kristaps 836: if (bold)
1.126 schwarze 837: printf("</b>");
1.9 kristaps 838:
1.115 schwarze 839: if (i == len - 1 && p[i] != '\n')
1.10 kristaps 840: html_putchar(p[i]);
1.9 kristaps 841:
1.10 kristaps 842: putchar('\n');
843: }
1.115 schwarze 844: free(p);
1.10 kristaps 845:
1.126 schwarze 846: puts("</pre>\n"
847: "</div>");
1.10 kristaps 848:
849: fclose(f);
1.9 kristaps 850: }
851:
852: static void
1.129 schwarze 853: resp_format(const struct req *req, const char *file)
1.7 kristaps 854: {
1.106 schwarze 855: struct manoutput conf;
1.8 kristaps 856: struct mparse *mp;
1.164 schwarze 857: struct roff_meta *meta;
1.8 kristaps 858: void *vp;
1.90 schwarze 859: int fd;
860: int usepath;
1.7 kristaps 861:
1.8 kristaps 862: if (-1 == (fd = open(file, O_RDONLY, 0))) {
1.126 schwarze 863: puts("<p>You specified an invalid manual file.</p>");
1.7 kristaps 864: return;
865: }
866:
1.110 schwarze 867: mchars_alloc();
1.164 schwarze 868: mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1 |
869: MPARSE_VALIDATE, MANDOC_OS_OTHER, req->q.manpath);
1.103 schwarze 870: mparse_readfd(mp, fd, file);
1.8 kristaps 871: close(fd);
1.164 schwarze 872: meta = mparse_result(mp);
1.7 kristaps 873:
1.106 schwarze 874: memset(&conf, 0, sizeof(conf));
875: conf.fragment = 1;
1.145 schwarze 876: conf.style = mandoc_strdup(CSS_DIR "/mandoc.css");
1.90 schwarze 877: usepath = strcmp(req->q.manpath, req->p[0]);
1.152 schwarze 878: mandoc_asprintf(&conf.man, "/%s%s%s%s%%N.%%S",
879: scriptname, *scriptname == '\0' ? "" : "/",
1.122 schwarze 880: usepath ? req->q.manpath : "", usepath ? "/" : "");
1.10 kristaps 881:
1.110 schwarze 882: vp = html_alloc(&conf);
1.164 schwarze 883: if (meta->macroset == MACROSET_MDOC)
884: html_mdoc(vp, meta);
885: else
886: html_man(vp, meta);
1.32 kristaps 887:
1.8 kristaps 888: html_free(vp);
889: mparse_free(mp);
1.110 schwarze 890: mchars_free();
1.106 schwarze 891: free(conf.man);
1.145 schwarze 892: free(conf.style);
1.7 kristaps 893: }
894:
895: static void
1.70 schwarze 896: resp_show(const struct req *req, const char *file)
897: {
1.76 schwarze 898:
899: if ('.' == file[0] && '/' == file[1])
1.71 schwarze 900: file += 2;
1.70 schwarze 901:
902: if ('c' == *file)
1.129 schwarze 903: resp_catman(req, file);
1.70 schwarze 904: else
1.129 schwarze 905: resp_format(req, file);
1.70 schwarze 906: }
907:
908: static void
1.84 schwarze 909: pg_show(struct req *req, const char *fullpath)
1.1 kristaps 910: {
1.84 schwarze 911: char *manpath;
912: const char *file;
1.25 kristaps 913:
1.84 schwarze 914: if ((file = strchr(fullpath, '/')) == NULL) {
1.72 schwarze 915: pg_error_badrequest(
1.59 schwarze 916: "You did not specify a page to show.");
1.25 kristaps 917: return;
1.104 schwarze 918: }
1.84 schwarze 919: manpath = mandoc_strndup(fullpath, file - fullpath);
920: file++;
1.6 kristaps 921:
1.84 schwarze 922: if ( ! validate_manpath(req, manpath)) {
1.77 schwarze 923: pg_error_badrequest(
924: "You specified an invalid manpath.");
1.84 schwarze 925: free(manpath);
1.77 schwarze 926: return;
927: }
928:
1.24 kristaps 929: /*
1.58 schwarze 930: * Begin by chdir()ing into the manpath.
1.24 kristaps 931: * This way we can pick up the database files, which are
932: * relative to the manpath root.
933: */
934:
1.84 schwarze 935: if (chdir(manpath) == -1) {
1.128 schwarze 936: warn("chdir %s", manpath);
1.77 schwarze 937: pg_error_internal();
1.84 schwarze 938: free(manpath);
1.76 schwarze 939: return;
940: }
1.134 schwarze 941: free(manpath);
1.84 schwarze 942:
943: if ( ! validate_filename(file)) {
1.76 schwarze 944: pg_error_badrequest(
945: "You specified an invalid manual file.");
1.24 kristaps 946: return;
947: }
1.79 schwarze 948:
1.150 schwarze 949: resp_begin_html(200, NULL, file);
1.131 schwarze 950: resp_searchform(req, FOCUS_NONE);
1.84 schwarze 951: resp_show(req, file);
1.70 schwarze 952: resp_end_html();
1.6 kristaps 953: }
954:
955: static void
1.66 schwarze 956: pg_search(const struct req *req)
1.6 kristaps 957: {
1.52 schwarze 958: struct mansearch search;
959: struct manpaths paths;
960: struct manpage *res;
1.97 schwarze 961: char **argv;
962: char *query, *rp, *wp;
1.52 schwarze 963: size_t ressz;
1.97 schwarze 964: int argc;
1.6 kristaps 965:
966: /*
1.24 kristaps 967: * Begin by chdir()ing into the root of the manpath.
968: * This way we can pick up the database files, which are
969: * relative to the manpath root.
970: */
971:
1.128 schwarze 972: if (chdir(req->q.manpath) == -1) {
973: warn("chdir %s", req->q.manpath);
1.77 schwarze 974: pg_error_internal();
1.24 kristaps 975: return;
976: }
977:
1.52 schwarze 978: search.arch = req->q.arch;
979: search.sec = req->q.sec;
1.94 schwarze 980: search.outkey = "Nd";
981: search.argmode = req->q.equal ? ARG_NAME : ARG_EXPR;
1.101 schwarze 982: search.firstmatch = 1;
1.52 schwarze 983:
984: paths.sz = 1;
985: paths.paths = mandoc_malloc(sizeof(char *));
986: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 987:
988: /*
1.97 schwarze 989: * Break apart at spaces with backslash-escaping.
1.6 kristaps 990: */
991:
1.97 schwarze 992: argc = 0;
993: argv = NULL;
994: rp = query = mandoc_strdup(req->q.query);
995: for (;;) {
996: while (isspace((unsigned char)*rp))
997: rp++;
998: if (*rp == '\0')
999: break;
1000: argv = mandoc_reallocarray(argv, argc + 1, sizeof(char *));
1001: argv[argc++] = wp = rp;
1002: for (;;) {
1003: if (isspace((unsigned char)*rp)) {
1004: *wp = '\0';
1005: rp++;
1006: break;
1007: }
1008: if (rp[0] == '\\' && rp[1] != '\0')
1009: rp++;
1010: if (wp != rp)
1011: *wp = *rp;
1012: if (*rp == '\0')
1013: break;
1014: wp++;
1015: rp++;
1016: }
1.6 kristaps 1017: }
1018:
1.149 schwarze 1019: res = NULL;
1020: ressz = 0;
1021: if (req->isquery && req->q.equal && argc == 1)
1022: pg_redirect(req, argv[0]);
1023: else if (mansearch(&search, &paths, argc, argv, &res, &ressz) == 0)
1.168 schwarze 1024: pg_noresult(req, 400, "Bad Request",
1025: "You entered an invalid query.");
1.149 schwarze 1026: else if (ressz == 0)
1.168 schwarze 1027: pg_noresult(req, 404, "Not Found", "No results found.");
1.59 schwarze 1028: else
1.72 schwarze 1029: pg_searchres(req, res, ressz);
1.6 kristaps 1030:
1.97 schwarze 1031: free(query);
1032: mansearch_free(res, ressz);
1.52 schwarze 1033: free(paths.paths[0]);
1034: free(paths.paths);
1.1 kristaps 1035: }
1036:
1037: int
1038: main(void)
1039: {
1.66 schwarze 1040: struct req req;
1.95 schwarze 1041: struct itimerval itimer;
1.66 schwarze 1042: const char *path;
1.83 schwarze 1043: const char *querystring;
1.1 kristaps 1044: int i;
1.148 schwarze 1045:
1046: #if HAVE_PLEDGE
1047: /*
1048: * The "rpath" pledge could be revoked after mparse_readfd()
1049: * if the file desciptor to "/footer.html" would be opened
1050: * up front, but it's probably not worth the complication
1051: * of the code it would cause: it would require scattering
1052: * pledge() calls in multiple low-level resp_*() functions.
1053: */
1054:
1055: if (pledge("stdio rpath", NULL) == -1) {
1056: warn("pledge");
1057: pg_error_internal();
1058: return EXIT_FAILURE;
1059: }
1060: #endif
1.95 schwarze 1061:
1062: /* Poor man's ReDoS mitigation. */
1063:
1.99 schwarze 1064: itimer.it_value.tv_sec = 2;
1.95 schwarze 1065: itimer.it_value.tv_usec = 0;
1.99 schwarze 1066: itimer.it_interval.tv_sec = 2;
1.95 schwarze 1067: itimer.it_interval.tv_usec = 0;
1068: if (setitimer(ITIMER_VIRTUAL, &itimer, NULL) == -1) {
1.128 schwarze 1069: warn("setitimer");
1.80 schwarze 1070: pg_error_internal();
1.109 schwarze 1071: return EXIT_FAILURE;
1.80 schwarze 1072: }
1073:
1.24 kristaps 1074: /*
1.67 schwarze 1075: * First we change directory into the MAN_DIR so that
1.24 kristaps 1076: * subsequent scanning for manpath directories is rooted
1077: * relative to the same position.
1078: */
1079:
1.128 schwarze 1080: if (chdir(MAN_DIR) == -1) {
1081: warn("MAN_DIR: %s", MAN_DIR);
1.72 schwarze 1082: pg_error_internal();
1.109 schwarze 1083: return EXIT_FAILURE;
1.104 schwarze 1084: }
1.24 kristaps 1085:
1086: memset(&req, 0, sizeof(struct req));
1.118 schwarze 1087: req.q.equal = 1;
1.129 schwarze 1088: parse_manpath_conf(&req);
1.1 kristaps 1089:
1.117 schwarze 1090: /* Parse the path info and the query string. */
1.1 kristaps 1091:
1.117 schwarze 1092: if ((path = getenv("PATH_INFO")) == NULL)
1093: path = "";
1094: else if (*path == '/')
1095: path++;
1096:
1.124 schwarze 1097: if (*path != '\0') {
1.129 schwarze 1098: parse_path_info(&req, path);
1.154 schwarze 1099: if (req.q.manpath == NULL || req.q.sec == NULL ||
1100: *req.q.query == '\0' || access(path, F_OK) == -1)
1.124 schwarze 1101: path = "";
1.117 schwarze 1102: } else if ((querystring = getenv("QUERY_STRING")) != NULL)
1.129 schwarze 1103: parse_query_string(&req, querystring);
1.77 schwarze 1104:
1.117 schwarze 1105: /* Validate parsed data and add defaults. */
1106:
1.102 schwarze 1107: if (req.q.manpath == NULL)
1108: req.q.manpath = mandoc_strdup(req.p[0]);
1109: else if ( ! validate_manpath(&req, req.q.manpath)) {
1.77 schwarze 1110: pg_error_badrequest(
1111: "You specified an invalid manpath.");
1.109 schwarze 1112: return EXIT_FAILURE;
1.77 schwarze 1113: }
1.1 kristaps 1114:
1.159 schwarze 1115: if (req.q.arch != NULL && validate_arch(req.q.arch) == 0) {
1.80 schwarze 1116: pg_error_badrequest(
1117: "You specified an invalid architecture.");
1.109 schwarze 1118: return EXIT_FAILURE;
1.80 schwarze 1119: }
1120:
1.66 schwarze 1121: /* Dispatch to the three different pages. */
1.1 kristaps 1122:
1.66 schwarze 1123: if ('\0' != *path)
1124: pg_show(&req, path);
1.85 schwarze 1125: else if (NULL != req.q.query)
1.66 schwarze 1126: pg_search(&req);
1127: else
1.72 schwarze 1128: pg_index(&req);
1.1 kristaps 1129:
1.83 schwarze 1130: free(req.q.manpath);
1131: free(req.q.arch);
1132: free(req.q.sec);
1.85 schwarze 1133: free(req.q.query);
1.52 schwarze 1134: for (i = 0; i < (int)req.psz; i++)
1135: free(req.p[i]);
1.24 kristaps 1136: free(req.p);
1.109 schwarze 1137: return EXIT_SUCCESS;
1.117 schwarze 1138: }
1139:
1140: /*
1.161 schwarze 1141: * Translate PATH_INFO to a query.
1.117 schwarze 1142: */
1143: static void
1.129 schwarze 1144: parse_path_info(struct req *req, const char *path)
1.117 schwarze 1145: {
1.161 schwarze 1146: const char *name, *sec, *end;
1.117 schwarze 1147:
1.121 schwarze 1148: req->isquery = 0;
1.117 schwarze 1149: req->q.equal = 1;
1.161 schwarze 1150: req->q.manpath = NULL;
1.135 schwarze 1151: req->q.arch = NULL;
1.117 schwarze 1152:
1153: /* Mandatory manual page name. */
1.161 schwarze 1154: if ((name = strrchr(path, '/')) == NULL)
1155: name = path;
1156: else
1157: name++;
1.117 schwarze 1158:
1159: /* Optional trailing section. */
1.161 schwarze 1160: sec = strrchr(name, '.');
1161: if (sec != NULL && isdigit((unsigned char)*++sec)) {
1162: req->q.query = mandoc_strndup(name, sec - name - 1);
1163: req->q.sec = mandoc_strdup(sec);
1164: } else {
1165: req->q.query = mandoc_strdup(name);
1166: req->q.sec = NULL;
1.117 schwarze 1167: }
1168:
1169: /* Handle the case of name[.section] only. */
1.161 schwarze 1170: if (name == path)
1.117 schwarze 1171: return;
1172:
1.135 schwarze 1173: /* Optional manpath. */
1.161 schwarze 1174: end = strchr(path, '/');
1175: req->q.manpath = mandoc_strndup(path, end - path);
1176: if (validate_manpath(req, req->q.manpath)) {
1177: path = end + 1;
1178: if (name == path)
1179: return;
1180: } else {
1181: free(req->q.manpath);
1.135 schwarze 1182: req->q.manpath = NULL;
1.161 schwarze 1183: }
1.117 schwarze 1184:
1.135 schwarze 1185: /* Optional section. */
1.165 schwarze 1186: if (strncmp(path, "man", 3) == 0 || strncmp(path, "cat", 3) == 0) {
1.161 schwarze 1187: path += 3;
1188: end = strchr(path, '/');
1.127 schwarze 1189: free(req->q.sec);
1.161 schwarze 1190: req->q.sec = mandoc_strndup(path, end - path);
1191: path = end + 1;
1192: if (name == path)
1193: return;
1.117 schwarze 1194: }
1.161 schwarze 1195:
1196: /* Optional architecture. */
1197: end = strchr(path, '/');
1198: if (end + 1 != name) {
1199: pg_error_badrequest(
1200: "You specified too many directory components.");
1201: exit(EXIT_FAILURE);
1.135 schwarze 1202: }
1.161 schwarze 1203: req->q.arch = mandoc_strndup(path, end - path);
1204: if (validate_arch(req->q.arch) == 0) {
1.135 schwarze 1205: pg_error_badrequest(
1206: "You specified an invalid directory component.");
1207: exit(EXIT_FAILURE);
1208: }
1.24 kristaps 1209: }
1210:
1211: /*
1212: * Scan for indexable paths.
1213: */
1214: static void
1.129 schwarze 1215: parse_manpath_conf(struct req *req)
1.24 kristaps 1216: {
1.54 schwarze 1217: FILE *fp;
1218: char *dp;
1219: size_t dpsz;
1.115 schwarze 1220: ssize_t len;
1.54 schwarze 1221:
1.128 schwarze 1222: if ((fp = fopen("manpath.conf", "r")) == NULL) {
1223: warn("%s/manpath.conf", MAN_DIR);
1.74 schwarze 1224: pg_error_internal();
1225: exit(EXIT_FAILURE);
1226: }
1.24 kristaps 1227:
1.115 schwarze 1228: dp = NULL;
1229: dpsz = 0;
1230:
1231: while ((len = getline(&dp, &dpsz, fp)) != -1) {
1232: if (dp[len - 1] == '\n')
1233: dp[--len] = '\0';
1.54 schwarze 1234: req->p = mandoc_realloc(req->p,
1235: (req->psz + 1) * sizeof(char *));
1.80 schwarze 1236: if ( ! validate_urifrag(dp)) {
1.128 schwarze 1237: warnx("%s/manpath.conf contains "
1238: "unsafe path \"%s\"", MAN_DIR, dp);
1.80 schwarze 1239: pg_error_internal();
1240: exit(EXIT_FAILURE);
1241: }
1.128 schwarze 1242: if (strchr(dp, '/') != NULL) {
1243: warnx("%s/manpath.conf contains "
1244: "path with slash \"%s\"", MAN_DIR, dp);
1.80 schwarze 1245: pg_error_internal();
1246: exit(EXIT_FAILURE);
1247: }
1248: req->p[req->psz++] = dp;
1.115 schwarze 1249: dp = NULL;
1250: dpsz = 0;
1.74 schwarze 1251: }
1.115 schwarze 1252: free(dp);
1.74 schwarze 1253:
1.128 schwarze 1254: if (req->p == NULL) {
1255: warnx("%s/manpath.conf is empty", MAN_DIR);
1.74 schwarze 1256: pg_error_internal();
1257: exit(EXIT_FAILURE);
1.24 kristaps 1258: }
1259: }
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