Annotation of mandoc/cgi.c, Revision 1.172
1.172 ! schwarze 1: /* $Id: cgi.c,v 1.171 2020/01/10 15:21:19 schwarze Exp $ */
1.6 kristaps 2: /*
1.172 ! schwarze 3: * Copyright (c) 2014-2019 Ingo Schwarze <schwarze@usta.de>
1.42 kristaps 4: * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
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.
1.172 ! schwarze 17: *
! 18: * Implementation of the man.cgi(8) program.
1.6 kristaps 19: */
20: #include "config.h"
1.93 schwarze 21:
22: #include <sys/types.h>
1.95 schwarze 23: #include <sys/time.h>
1.6 kristaps 24:
25: #include <ctype.h>
1.147 schwarze 26: #if HAVE_ERR
1.128 schwarze 27: #include <err.h>
1.147 schwarze 28: #endif
1.58 schwarze 29: #include <errno.h>
1.1 kristaps 30: #include <fcntl.h>
1.6 kristaps 31: #include <limits.h>
1.92 schwarze 32: #include <stdint.h>
1.1 kristaps 33: #include <stdio.h>
34: #include <stdlib.h>
35: #include <string.h>
1.6 kristaps 36: #include <unistd.h>
1.1 kristaps 37:
1.108 schwarze 38: #include "mandoc_aux.h"
1.4 schwarze 39: #include "mandoc.h"
1.108 schwarze 40: #include "roff.h"
1.111 schwarze 41: #include "mdoc.h"
1.112 schwarze 42: #include "man.h"
1.162 schwarze 43: #include "mandoc_parse.h"
1.8 kristaps 44: #include "main.h"
1.105 schwarze 45: #include "manconf.h"
1.52 schwarze 46: #include "mansearch.h"
1.67 schwarze 47: #include "cgi.h"
1.1 kristaps 48:
1.20 kristaps 49: /*
50: * A query as passed to the search function.
51: */
52: struct query {
1.83 schwarze 53: char *manpath; /* desired manual directory */
54: char *arch; /* architecture */
55: char *sec; /* manual section */
1.85 schwarze 56: char *query; /* unparsed query expression */
1.65 schwarze 57: int equal; /* match whole names, not substrings */
1.20 kristaps 58: };
59:
1.1 kristaps 60: struct req {
1.58 schwarze 61: struct query q;
62: char **p; /* array of available manpaths */
63: size_t psz; /* number of available manpaths */
1.121 schwarze 64: int isquery; /* QUERY_STRING used, not PATH_INFO */
1.1 kristaps 65: };
66:
1.131 schwarze 67: enum focus {
68: FOCUS_NONE = 0,
69: FOCUS_QUERY
70: };
71:
1.6 kristaps 72: static void html_print(const char *);
1.10 kristaps 73: static void html_putchar(char);
1.104 schwarze 74: static int http_decode(char *);
1.172 ! schwarze 75: static void http_encode(const char *);
1.129 schwarze 76: static void parse_manpath_conf(struct req *);
1.172 ! schwarze 77: static void parse_path_info(struct req *, const char *);
1.129 schwarze 78: static void parse_query_string(struct req *, const char *);
1.72 schwarze 79: static void pg_error_badrequest(const char *);
80: static void pg_error_internal(void);
81: static void pg_index(const struct req *);
1.168 schwarze 82: static void pg_noresult(const struct req *, int, const char *,
83: const char *);
1.149 schwarze 84: static void pg_redirect(const struct req *, const char *);
1.66 schwarze 85: static void pg_search(const struct req *);
1.72 schwarze 86: static void pg_searchres(const struct req *,
87: struct manpage *, size_t);
1.79 schwarze 88: static void pg_show(struct req *, const char *);
1.150 schwarze 89: static void resp_begin_html(int, const char *, const char *);
1.6 kristaps 90: static void resp_begin_http(int, const char *);
1.129 schwarze 91: static void resp_catman(const struct req *, const char *);
1.114 schwarze 92: static void resp_copy(const char *);
1.6 kristaps 93: static void resp_end_html(void);
1.129 schwarze 94: static void resp_format(const struct req *, const char *);
1.131 schwarze 95: static void resp_searchform(const struct req *, enum focus);
1.70 schwarze 96: static void resp_show(const struct req *, const char *);
1.85 schwarze 97: static void set_query_attr(char **, char **);
1.159 schwarze 98: static int validate_arch(const char *);
1.85 schwarze 99: static int validate_filename(const char *);
100: static int validate_manpath(const struct req *, const char *);
101: static int validate_urifrag(const char *);
1.6 kristaps 102:
1.119 schwarze 103: static const char *scriptname = SCRIPT_NAME;
1.1 kristaps 104:
1.70 schwarze 105: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.68 schwarze 106: static const char *const sec_numbers[] = {
107: "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
108: };
109: static const char *const sec_names[] = {
110: "All Sections",
111: "1 - General Commands",
112: "2 - System Calls",
1.96 schwarze 113: "3 - Library Functions",
114: "3p - Perl Library",
115: "4 - Device Drivers",
1.68 schwarze 116: "5 - File Formats",
117: "6 - Games",
1.96 schwarze 118: "7 - Miscellaneous Information",
119: "8 - System Manager\'s Manual",
120: "9 - Kernel Developer\'s Manual"
1.68 schwarze 121: };
122: static const int sec_MAX = sizeof(sec_names) / sizeof(char *);
123:
124: static const char *const arch_names[] = {
1.146 schwarze 125: "amd64", "alpha", "armv7", "arm64",
1.137 schwarze 126: "hppa", "i386", "landisk",
1.125 schwarze 127: "loongson", "luna88k", "macppc", "mips64",
1.140 schwarze 128: "octeon", "sgi", "socppc", "sparc64",
1.137 schwarze 129: "amiga", "arc", "armish", "arm32",
130: "atari", "aviion", "beagle", "cats",
131: "hppa64", "hp300",
1.125 schwarze 132: "ia64", "mac68k", "mvme68k", "mvme88k",
133: "mvmeppc", "palm", "pc532", "pegasos",
1.139 schwarze 134: "pmax", "powerpc", "solbourne", "sparc",
1.140 schwarze 135: "sun3", "vax", "wgrisc", "x68k",
136: "zaurus"
1.68 schwarze 137: };
138: static const int arch_MAX = sizeof(arch_names) / sizeof(char *);
139:
1.6 kristaps 140: /*
1.20 kristaps 141: * Print a character, escaping HTML along the way.
142: * This will pass non-ASCII straight to output: be warned!
143: */
1.10 kristaps 144: static void
145: html_putchar(char c)
146: {
147:
148: switch (c) {
1.155 schwarze 149: case '"':
1.141 schwarze 150: printf(""");
1.10 kristaps 151: break;
1.155 schwarze 152: case '&':
1.10 kristaps 153: printf("&");
154: break;
1.155 schwarze 155: case '>':
1.10 kristaps 156: printf(">");
157: break;
1.155 schwarze 158: case '<':
1.10 kristaps 159: printf("<");
160: break;
161: default:
162: putchar((unsigned char)c);
163: break;
164: }
165: }
1.57 schwarze 166:
1.6 kristaps 167: /*
1.20 kristaps 168: * Call through to html_putchar().
169: * Accepts NULL strings.
1.6 kristaps 170: */
1.1 kristaps 171: static void
1.6 kristaps 172: html_print(const char *p)
1.1 kristaps 173: {
1.104 schwarze 174:
1.6 kristaps 175: if (NULL == p)
176: return;
1.1 kristaps 177: while ('\0' != *p)
1.10 kristaps 178: html_putchar(*p++);
1.1 kristaps 179: }
180:
181: /*
1.83 schwarze 182: * Transfer the responsibility for the allocated string *val
183: * to the query structure.
1.1 kristaps 184: */
185: static void
1.83 schwarze 186: set_query_attr(char **attr, char **val)
1.1 kristaps 187: {
188:
1.83 schwarze 189: free(*attr);
190: if (**val == '\0') {
191: *attr = NULL;
192: free(*val);
193: } else
194: *attr = *val;
195: *val = NULL;
196: }
197:
198: /*
199: * Parse the QUERY_STRING for key-value pairs
200: * and store the values into the query structure.
201: */
202: static void
1.129 schwarze 203: parse_query_string(struct req *req, const char *qs)
1.83 schwarze 204: {
205: char *key, *val;
206: size_t keysz, valsz;
207:
1.121 schwarze 208: req->isquery = 1;
1.83 schwarze 209: req->q.manpath = NULL;
210: req->q.arch = NULL;
211: req->q.sec = NULL;
1.85 schwarze 212: req->q.query = NULL;
1.83 schwarze 213: req->q.equal = 1;
214:
215: key = val = NULL;
216: while (*qs != '\0') {
1.24 kristaps 217:
1.83 schwarze 218: /* Parse one key. */
219:
220: keysz = strcspn(qs, "=;&");
221: key = mandoc_strndup(qs, keysz);
222: qs += keysz;
223: if (*qs != '=')
224: goto next;
225:
226: /* Parse one value. */
227:
228: valsz = strcspn(++qs, ";&");
229: val = mandoc_strndup(qs, valsz);
230: qs += valsz;
231:
232: /* Decode and catch encoding errors. */
1.1 kristaps 233:
1.83 schwarze 234: if ( ! (http_decode(key) && http_decode(val)))
235: goto next;
1.1 kristaps 236:
1.83 schwarze 237: /* Handle key-value pairs. */
1.1 kristaps 238:
1.83 schwarze 239: if ( ! strcmp(key, "query"))
1.85 schwarze 240: set_query_attr(&req->q.query, &val);
1.1 kristaps 241:
1.83 schwarze 242: else if ( ! strcmp(key, "apropos"))
243: req->q.equal = !strcmp(val, "0");
244:
245: else if ( ! strcmp(key, "manpath")) {
1.73 schwarze 246: #ifdef COMPAT_OLDURI
1.83 schwarze 247: if ( ! strncmp(val, "OpenBSD ", 8)) {
1.73 schwarze 248: val[7] = '-';
249: if ('C' == val[8])
250: val[8] = 'c';
251: }
252: #endif
1.83 schwarze 253: set_query_attr(&req->q.manpath, &val);
254: }
255:
256: else if ( ! (strcmp(key, "sec")
1.73 schwarze 257: #ifdef COMPAT_OLDURI
1.83 schwarze 258: && strcmp(key, "sektion")
1.73 schwarze 259: #endif
1.83 schwarze 260: )) {
261: if ( ! strcmp(val, "0"))
262: *val = '\0';
263: set_query_attr(&req->q.sec, &val);
1.65 schwarze 264: }
1.83 schwarze 265:
266: else if ( ! strcmp(key, "arch")) {
267: if ( ! strcmp(val, "default"))
268: *val = '\0';
269: set_query_attr(&req->q.arch, &val);
270: }
271:
272: /*
273: * The key must be freed in any case.
274: * The val may have been handed over to the query
275: * structure, in which case it is now NULL.
276: */
277: next:
278: free(key);
279: key = NULL;
280: free(val);
281: val = NULL;
282:
283: if (*qs != '\0')
284: qs++;
1.24 kristaps 285: }
1.1 kristaps 286: }
287:
288: /*
1.6 kristaps 289: * HTTP-decode a string. The standard explanation is that this turns
290: * "%4e+foo" into "n foo" in the regular way. This is done in-place
291: * over the allocated string.
1.1 kristaps 292: */
293: static int
1.24 kristaps 294: http_decode(char *p)
1.1 kristaps 295: {
296: char hex[3];
1.63 schwarze 297: char *q;
1.1 kristaps 298: int c;
299:
300: hex[2] = '\0';
301:
1.63 schwarze 302: q = p;
303: for ( ; '\0' != *p; p++, q++) {
1.1 kristaps 304: if ('%' == *p) {
305: if ('\0' == (hex[0] = *(p + 1)))
1.109 schwarze 306: return 0;
1.1 kristaps 307: if ('\0' == (hex[1] = *(p + 2)))
1.109 schwarze 308: return 0;
1.1 kristaps 309: if (1 != sscanf(hex, "%x", &c))
1.109 schwarze 310: return 0;
1.1 kristaps 311: if ('\0' == c)
1.109 schwarze 312: return 0;
1.1 kristaps 313:
1.63 schwarze 314: *q = (char)c;
315: p += 2;
1.1 kristaps 316: } else
1.63 schwarze 317: *q = '+' == *p ? ' ' : *p;
1.1 kristaps 318: }
319:
1.63 schwarze 320: *q = '\0';
1.109 schwarze 321: return 1;
1.1 kristaps 322: }
323:
1.6 kristaps 324: static void
1.159 schwarze 325: http_encode(const char *p)
326: {
327: for (; *p != '\0'; p++) {
328: if (isalnum((unsigned char)*p) == 0 &&
329: strchr("-._~", *p) == NULL)
1.166 schwarze 330: printf("%%%2.2X", (unsigned char)*p);
1.159 schwarze 331: else
332: putchar(*p);
333: }
334: }
335:
336: static void
1.6 kristaps 337: resp_begin_http(int code, const char *msg)
338: {
339:
340: if (200 != code)
1.62 schwarze 341: printf("Status: %d %s\r\n", code, msg);
1.6 kristaps 342:
1.62 schwarze 343: printf("Content-Type: text/html; charset=utf-8\r\n"
344: "Cache-Control: no-cache\r\n"
1.169 schwarze 345: "Content-Security-Policy: default-src 'none'; "
346: "style-src 'self' 'unsafe-inline'\r\n"
1.62 schwarze 347: "Pragma: no-cache\r\n"
348: "\r\n");
1.6 kristaps 349:
350: fflush(stdout);
351: }
352:
353: static void
1.114 schwarze 354: resp_copy(const char *filename)
355: {
356: char buf[4096];
357: ssize_t sz;
358: int fd;
359:
360: if ((fd = open(filename, O_RDONLY)) != -1) {
361: fflush(stdout);
362: while ((sz = read(fd, buf, sizeof(buf))) > 0)
363: write(STDOUT_FILENO, buf, sz);
1.138 schwarze 364: close(fd);
1.114 schwarze 365: }
366: }
367:
368: static void
1.150 schwarze 369: resp_begin_html(int code, const char *msg, const char *file)
1.6 kristaps 370: {
1.150 schwarze 371: char *cp;
1.6 kristaps 372:
373: resp_begin_http(code, msg);
374:
1.98 kristaps 375: printf("<!DOCTYPE html>\n"
1.126 schwarze 376: "<html>\n"
377: "<head>\n"
1.143 schwarze 378: " <meta charset=\"UTF-8\"/>\n"
1.157 schwarze 379: " <meta name=\"viewport\""
380: " content=\"width=device-width, initial-scale=1.0\">\n"
1.143 schwarze 381: " <link rel=\"stylesheet\" href=\"%s/mandoc.css\""
1.126 schwarze 382: " type=\"text/css\" media=\"all\">\n"
1.150 schwarze 383: " <title>",
384: CSS_DIR);
385: if (file != NULL) {
386: if ((cp = strrchr(file, '/')) != NULL)
387: file = cp + 1;
388: if ((cp = strrchr(file, '.')) != NULL) {
389: printf("%.*s(%s) - ", (int)(cp - file), file, cp + 1);
390: } else
391: printf("%s - ", file);
392: }
393: printf("%s</title>\n"
1.126 schwarze 394: "</head>\n"
1.142 schwarze 395: "<body>\n",
1.150 schwarze 396: CUSTOMIZE_TITLE);
1.114 schwarze 397:
398: resp_copy(MAN_DIR "/header.html");
1.6 kristaps 399: }
400:
401: static void
402: resp_end_html(void)
403: {
404:
1.114 schwarze 405: resp_copy(MAN_DIR "/footer.html");
406:
1.126 schwarze 407: puts("</body>\n"
408: "</html>");
1.6 kristaps 409: }
410:
411: static void
1.131 schwarze 412: resp_searchform(const struct req *req, enum focus focus)
1.6 kristaps 413: {
1.27 kristaps 414: int i;
1.13 kristaps 415:
1.171 schwarze 416: printf("<form action=\"/%s\" method=\"get\" "
417: "autocomplete=\"off\" autocapitalize=\"none\">\n"
1.143 schwarze 418: " <fieldset>\n"
419: " <legend>Manual Page Search Parameters</legend>\n",
1.58 schwarze 420: scriptname);
1.68 schwarze 421:
422: /* Write query input box. */
423:
1.158 schwarze 424: printf(" <input type=\"search\" name=\"query\" value=\"");
1.131 schwarze 425: if (req->q.query != NULL)
1.85 schwarze 426: html_print(req->q.query);
1.131 schwarze 427: printf( "\" size=\"40\"");
428: if (focus == FOCUS_QUERY)
429: printf(" autofocus");
430: puts(">");
1.68 schwarze 431:
1.132 schwarze 432: /* Write submission buttons. */
1.68 schwarze 433:
1.143 schwarze 434: printf( " <button type=\"submit\" name=\"apropos\" value=\"0\">"
1.132 schwarze 435: "man</button>\n"
1.143 schwarze 436: " <button type=\"submit\" name=\"apropos\" value=\"1\">"
437: "apropos</button>\n"
438: " <br/>\n");
1.68 schwarze 439:
440: /* Write section selector. */
441:
1.143 schwarze 442: puts(" <select name=\"sec\">");
1.68 schwarze 443: for (i = 0; i < sec_MAX; i++) {
1.143 schwarze 444: printf(" <option value=\"%s\"", sec_numbers[i]);
1.68 schwarze 445: if (NULL != req->q.sec &&
446: 0 == strcmp(sec_numbers[i], req->q.sec))
1.126 schwarze 447: printf(" selected=\"selected\"");
448: printf(">%s</option>\n", sec_names[i]);
1.68 schwarze 449: }
1.143 schwarze 450: puts(" </select>");
1.68 schwarze 451:
452: /* Write architecture selector. */
453:
1.143 schwarze 454: printf( " <select name=\"arch\">\n"
455: " <option value=\"default\"");
1.81 schwarze 456: if (NULL == req->q.arch)
1.126 schwarze 457: printf(" selected=\"selected\"");
458: puts(">All Architectures</option>");
1.68 schwarze 459: for (i = 0; i < arch_MAX; i++) {
1.158 schwarze 460: printf(" <option");
1.68 schwarze 461: if (NULL != req->q.arch &&
462: 0 == strcmp(arch_names[i], req->q.arch))
1.126 schwarze 463: printf(" selected=\"selected\"");
464: printf(">%s</option>\n", arch_names[i]);
1.68 schwarze 465: }
1.143 schwarze 466: puts(" </select>");
1.68 schwarze 467:
468: /* Write manpath selector. */
469:
1.27 kristaps 470: if (req->psz > 1) {
1.143 schwarze 471: puts(" <select name=\"manpath\">");
1.27 kristaps 472: for (i = 0; i < (int)req->psz; i++) {
1.158 schwarze 473: printf(" <option");
1.102 schwarze 474: if (strcmp(req->q.manpath, req->p[i]) == 0)
1.158 schwarze 475: printf(" selected=\"selected\"");
476: printf(">");
1.52 schwarze 477: html_print(req->p[i]);
1.126 schwarze 478: puts("</option>");
1.27 kristaps 479: }
1.143 schwarze 480: puts(" </select>");
1.27 kristaps 481: }
1.68 schwarze 482:
1.143 schwarze 483: puts(" </fieldset>\n"
1.142 schwarze 484: "</form>");
1.6 kristaps 485: }
486:
1.76 schwarze 487: static int
1.80 schwarze 488: validate_urifrag(const char *frag)
489: {
490:
491: while ('\0' != *frag) {
492: if ( ! (isalnum((unsigned char)*frag) ||
493: '-' == *frag || '.' == *frag ||
494: '/' == *frag || '_' == *frag))
1.109 schwarze 495: return 0;
1.80 schwarze 496: frag++;
497: }
1.109 schwarze 498: return 1;
1.80 schwarze 499: }
500:
501: static int
1.77 schwarze 502: validate_manpath(const struct req *req, const char* manpath)
503: {
504: size_t i;
505:
506: for (i = 0; i < req->psz; i++)
507: if ( ! strcmp(manpath, req->p[i]))
1.109 schwarze 508: return 1;
1.77 schwarze 509:
1.109 schwarze 510: return 0;
1.77 schwarze 511: }
512:
513: static int
1.159 schwarze 514: validate_arch(const char *arch)
515: {
516: int i;
517:
518: for (i = 0; i < arch_MAX; i++)
519: if (strcmp(arch, arch_names[i]) == 0)
520: return 1;
521:
522: return 0;
523: }
524:
525: static int
1.76 schwarze 526: validate_filename(const char *file)
527: {
528:
529: if ('.' == file[0] && '/' == file[1])
530: file += 2;
531:
1.109 schwarze 532: return ! (strstr(file, "../") || strstr(file, "/..") ||
533: (strncmp(file, "man", 3) && strncmp(file, "cat", 3)));
1.76 schwarze 534: }
535:
1.6 kristaps 536: static void
1.72 schwarze 537: pg_index(const struct req *req)
1.6 kristaps 538: {
539:
1.150 schwarze 540: resp_begin_html(200, NULL, NULL);
1.131 schwarze 541: resp_searchform(req, FOCUS_QUERY);
1.126 schwarze 542: printf("<p>\n"
1.86 schwarze 543: "This web interface is documented in the\n"
1.144 schwarze 544: "<a class=\"Xr\" href=\"/%s%sman.cgi.8\">man.cgi(8)</a>\n"
1.86 schwarze 545: "manual, and the\n"
1.144 schwarze 546: "<a class=\"Xr\" href=\"/%s%sapropos.1\">apropos(1)</a>\n"
1.69 schwarze 547: "manual explains the query syntax.\n"
1.126 schwarze 548: "</p>\n",
1.119 schwarze 549: scriptname, *scriptname == '\0' ? "" : "/",
550: scriptname, *scriptname == '\0' ? "" : "/");
1.6 kristaps 551: resp_end_html();
552: }
553:
554: static void
1.168 schwarze 555: pg_noresult(const struct req *req, int code, const char *http_msg,
556: const char *user_msg)
1.59 schwarze 557: {
1.168 schwarze 558: resp_begin_html(code, http_msg, NULL);
1.131 schwarze 559: resp_searchform(req, FOCUS_QUERY);
1.126 schwarze 560: puts("<p>");
1.168 schwarze 561: puts(user_msg);
1.126 schwarze 562: puts("</p>");
1.59 schwarze 563: resp_end_html();
564: }
565:
566: static void
1.72 schwarze 567: pg_error_badrequest(const char *msg)
1.9 kristaps 568: {
569:
1.150 schwarze 570: resp_begin_html(400, "Bad Request", NULL);
1.126 schwarze 571: puts("<h1>Bad Request</h1>\n"
572: "<p>\n");
1.59 schwarze 573: puts(msg);
574: printf("Try again from the\n"
1.126 schwarze 575: "<a href=\"/%s\">main page</a>.\n"
576: "</p>", scriptname);
1.9 kristaps 577: resp_end_html();
578: }
579:
580: static void
1.72 schwarze 581: pg_error_internal(void)
1.7 kristaps 582: {
1.150 schwarze 583: resp_begin_html(500, "Internal Server Error", NULL);
1.126 schwarze 584: puts("<p>Internal Server Error</p>");
1.7 kristaps 585: resp_end_html();
586: }
587:
588: static void
1.149 schwarze 589: pg_redirect(const struct req *req, const char *name)
590: {
1.153 schwarze 591: printf("Status: 303 See Other\r\n"
592: "Location: /");
1.149 schwarze 593: if (*scriptname != '\0')
594: printf("%s/", scriptname);
595: if (strcmp(req->q.manpath, req->p[0]))
596: printf("%s/", req->q.manpath);
597: if (req->q.arch != NULL)
598: printf("%s/", req->q.arch);
1.159 schwarze 599: http_encode(name);
600: if (req->q.sec != NULL) {
601: putchar('.');
602: http_encode(req->q.sec);
603: }
1.149 schwarze 604: printf("\r\nContent-Type: text/html; charset=utf-8\r\n\r\n");
605: }
606:
607: static void
1.72 schwarze 608: pg_searchres(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 609: {
1.81 schwarze 610: char *arch, *archend;
1.120 schwarze 611: const char *sec;
612: size_t i, iuse;
1.81 schwarze 613: int archprio, archpriouse;
1.70 schwarze 614: int prio, priouse;
1.19 kristaps 615:
1.76 schwarze 616: for (i = 0; i < sz; i++) {
617: if (validate_filename(r[i].file))
618: continue;
1.128 schwarze 619: warnx("invalid filename %s in %s database",
1.76 schwarze 620: r[i].file, req->q.manpath);
621: pg_error_internal();
622: return;
623: }
624:
1.121 schwarze 625: if (req->isquery && sz == 1) {
1.6 kristaps 626: /*
627: * If we have just one result, then jump there now
628: * without any delay.
629: */
1.153 schwarze 630: printf("Status: 303 See Other\r\n"
631: "Location: /");
632: if (*scriptname != '\0')
633: printf("%s/", scriptname);
634: if (strcmp(req->q.manpath, req->p[0]))
635: printf("%s/", req->q.manpath);
636: printf("%s\r\n"
637: "Content-Type: text/html; charset=utf-8\r\n\r\n",
638: r[0].file);
1.6 kristaps 639: return;
640: }
641:
1.70 schwarze 642: /*
643: * In man(1) mode, show one of the pages
644: * even if more than one is found.
645: */
646:
1.150 schwarze 647: iuse = 0;
1.123 schwarze 648: if (req->q.equal || sz == 1) {
1.120 schwarze 649: priouse = 20;
1.81 schwarze 650: archpriouse = 3;
1.70 schwarze 651: for (i = 0; i < sz; i++) {
1.120 schwarze 652: sec = r[i].file;
653: sec += strcspn(sec, "123456789");
654: if (sec[0] == '\0')
1.70 schwarze 655: continue;
1.120 schwarze 656: prio = sec_prios[sec[0] - '1'];
657: if (sec[1] != '/')
658: prio += 10;
659: if (req->q.arch == NULL) {
1.81 schwarze 660: archprio =
1.120 schwarze 661: ((arch = strchr(sec + 1, '/'))
662: == NULL) ? 3 :
663: ((archend = strchr(arch + 1, '/'))
664: == NULL) ? 0 :
1.81 schwarze 665: strncmp(arch, "amd64/",
666: archend - arch) ? 2 : 1;
667: if (archprio < archpriouse) {
668: archpriouse = archprio;
669: priouse = prio;
670: iuse = i;
671: continue;
672: }
673: if (archprio > archpriouse)
674: continue;
675: }
1.70 schwarze 676: if (prio >= priouse)
677: continue;
678: priouse = prio;
679: iuse = i;
680: }
1.150 schwarze 681: resp_begin_html(200, NULL, r[iuse].file);
682: } else
683: resp_begin_html(200, NULL, NULL);
684:
685: resp_searchform(req,
686: req->q.equal || sz == 1 ? FOCUS_NONE : FOCUS_QUERY);
687:
688: if (sz > 1) {
689: puts("<table class=\"results\">");
690: for (i = 0; i < sz; i++) {
691: printf(" <tr>\n"
692: " <td>"
1.151 schwarze 693: "<a class=\"Xr\" href=\"/");
694: if (*scriptname != '\0')
695: printf("%s/", scriptname);
696: if (strcmp(req->q.manpath, req->p[0]))
697: printf("%s/", req->q.manpath);
698: printf("%s\">", r[i].file);
1.150 schwarze 699: html_print(r[i].names);
700: printf("</a></td>\n"
701: " <td><span class=\"Nd\">");
702: html_print(r[i].output);
703: puts("</span></td>\n"
704: " </tr>");
705: }
706: puts("</table>");
707: }
708:
709: if (req->q.equal || sz == 1) {
710: puts("<hr>");
1.70 schwarze 711: resp_show(req, r[iuse].file);
712: }
713:
1.6 kristaps 714: resp_end_html();
715: }
716:
1.1 kristaps 717: static void
1.129 schwarze 718: resp_catman(const struct req *req, const char *file)
1.9 kristaps 719: {
1.10 kristaps 720: FILE *f;
1.115 schwarze 721: char *p;
722: size_t sz;
723: ssize_t len;
1.10 kristaps 724: int i;
725: int italic, bold;
1.9 kristaps 726:
1.115 schwarze 727: if ((f = fopen(file, "r")) == NULL) {
1.126 schwarze 728: puts("<p>You specified an invalid manual file.</p>");
1.9 kristaps 729: return;
730: }
731:
1.126 schwarze 732: puts("<div class=\"catman\">\n"
733: "<pre>");
1.10 kristaps 734:
1.115 schwarze 735: p = NULL;
736: sz = 0;
737:
738: while ((len = getline(&p, &sz, f)) != -1) {
1.10 kristaps 739: bold = italic = 0;
1.115 schwarze 740: for (i = 0; i < len - 1; i++) {
1.104 schwarze 741: /*
1.10 kristaps 742: * This means that the catpage is out of state.
743: * Ignore it and keep going (although the
744: * catpage is bogus).
745: */
746:
747: if ('\b' == p[i] || '\n' == p[i])
748: continue;
749:
750: /*
751: * Print a regular character.
752: * Close out any bold/italic scopes.
753: * If we're in back-space mode, make sure we'll
754: * have something to enter when we backspace.
755: */
756:
757: if ('\b' != p[i + 1]) {
758: if (italic)
1.126 schwarze 759: printf("</i>");
1.10 kristaps 760: if (bold)
1.126 schwarze 761: printf("</b>");
1.10 kristaps 762: italic = bold = 0;
763: html_putchar(p[i]);
764: continue;
1.115 schwarze 765: } else if (i + 2 >= len)
1.10 kristaps 766: continue;
767:
768: /* Italic mode. */
769:
770: if ('_' == p[i]) {
771: if (bold)
1.126 schwarze 772: printf("</b>");
1.10 kristaps 773: if ( ! italic)
1.126 schwarze 774: printf("<i>");
1.10 kristaps 775: bold = 0;
776: italic = 1;
777: i += 2;
778: html_putchar(p[i]);
779: continue;
780: }
781:
1.104 schwarze 782: /*
1.10 kristaps 783: * Handle funny behaviour troff-isms.
784: * These grok'd from the original man2html.c.
785: */
786:
787: if (('+' == p[i] && 'o' == p[i + 2]) ||
788: ('o' == 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: ('*' == p[i] && '|' == p[i + 2]) ||
794: ('|' == p[i] && '*' == p[i + 2])) {
795: if (italic)
1.126 schwarze 796: printf("</i>");
1.10 kristaps 797: if (bold)
1.126 schwarze 798: printf("</b>");
1.10 kristaps 799: italic = bold = 0;
800: putchar('*');
801: i += 2;
802: continue;
803: } else if (('|' == p[i] && '-' == p[i + 2]) ||
804: ('-' == p[i] && '|' == p[i + 1]) ||
805: ('+' == p[i] && '-' == p[i + 1]) ||
806: ('-' == p[i] && '+' == p[i + 1]) ||
807: ('+' == p[i] && '|' == p[i + 1]) ||
808: ('|' == p[i] && '+' == p[i + 1])) {
809: if (italic)
1.126 schwarze 810: printf("</i>");
1.10 kristaps 811: if (bold)
1.126 schwarze 812: printf("</b>");
1.10 kristaps 813: italic = bold = 0;
814: putchar('+');
815: i += 2;
816: continue;
817: }
818:
819: /* Bold mode. */
1.104 schwarze 820:
1.10 kristaps 821: if (italic)
1.126 schwarze 822: printf("</i>");
1.10 kristaps 823: if ( ! bold)
1.126 schwarze 824: printf("<b>");
1.10 kristaps 825: bold = 1;
826: italic = 0;
827: i += 2;
828: html_putchar(p[i]);
829: }
830:
1.104 schwarze 831: /*
1.10 kristaps 832: * Clean up the last character.
1.104 schwarze 833: * We can get to a newline; don't print that.
1.10 kristaps 834: */
1.9 kristaps 835:
1.10 kristaps 836: if (italic)
1.126 schwarze 837: printf("</i>");
1.10 kristaps 838: if (bold)
1.126 schwarze 839: printf("</b>");
1.9 kristaps 840:
1.115 schwarze 841: if (i == len - 1 && p[i] != '\n')
1.10 kristaps 842: html_putchar(p[i]);
1.9 kristaps 843:
1.10 kristaps 844: putchar('\n');
845: }
1.115 schwarze 846: free(p);
1.10 kristaps 847:
1.126 schwarze 848: puts("</pre>\n"
849: "</div>");
1.10 kristaps 850:
851: fclose(f);
1.9 kristaps 852: }
853:
854: static void
1.129 schwarze 855: resp_format(const struct req *req, const char *file)
1.7 kristaps 856: {
1.106 schwarze 857: struct manoutput conf;
1.8 kristaps 858: struct mparse *mp;
1.164 schwarze 859: struct roff_meta *meta;
1.8 kristaps 860: void *vp;
1.90 schwarze 861: int fd;
862: int usepath;
1.7 kristaps 863:
1.8 kristaps 864: if (-1 == (fd = open(file, O_RDONLY, 0))) {
1.126 schwarze 865: puts("<p>You specified an invalid manual file.</p>");
1.7 kristaps 866: return;
867: }
868:
1.110 schwarze 869: mchars_alloc();
1.164 schwarze 870: mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1 |
871: MPARSE_VALIDATE, MANDOC_OS_OTHER, req->q.manpath);
1.103 schwarze 872: mparse_readfd(mp, fd, file);
1.8 kristaps 873: close(fd);
1.164 schwarze 874: meta = mparse_result(mp);
1.7 kristaps 875:
1.106 schwarze 876: memset(&conf, 0, sizeof(conf));
877: conf.fragment = 1;
1.145 schwarze 878: conf.style = mandoc_strdup(CSS_DIR "/mandoc.css");
1.90 schwarze 879: usepath = strcmp(req->q.manpath, req->p[0]);
1.152 schwarze 880: mandoc_asprintf(&conf.man, "/%s%s%s%s%%N.%%S",
881: scriptname, *scriptname == '\0' ? "" : "/",
1.122 schwarze 882: usepath ? req->q.manpath : "", usepath ? "/" : "");
1.10 kristaps 883:
1.110 schwarze 884: vp = html_alloc(&conf);
1.164 schwarze 885: if (meta->macroset == MACROSET_MDOC)
886: html_mdoc(vp, meta);
887: else
888: html_man(vp, meta);
1.32 kristaps 889:
1.8 kristaps 890: html_free(vp);
891: mparse_free(mp);
1.110 schwarze 892: mchars_free();
1.106 schwarze 893: free(conf.man);
1.145 schwarze 894: free(conf.style);
1.7 kristaps 895: }
896:
897: static void
1.70 schwarze 898: resp_show(const struct req *req, const char *file)
899: {
1.76 schwarze 900:
901: if ('.' == file[0] && '/' == file[1])
1.71 schwarze 902: file += 2;
1.70 schwarze 903:
904: if ('c' == *file)
1.129 schwarze 905: resp_catman(req, file);
1.70 schwarze 906: else
1.129 schwarze 907: resp_format(req, file);
1.70 schwarze 908: }
909:
910: static void
1.84 schwarze 911: pg_show(struct req *req, const char *fullpath)
1.1 kristaps 912: {
1.84 schwarze 913: char *manpath;
914: const char *file;
1.25 kristaps 915:
1.84 schwarze 916: if ((file = strchr(fullpath, '/')) == NULL) {
1.72 schwarze 917: pg_error_badrequest(
1.59 schwarze 918: "You did not specify a page to show.");
1.25 kristaps 919: return;
1.104 schwarze 920: }
1.84 schwarze 921: manpath = mandoc_strndup(fullpath, file - fullpath);
922: file++;
1.6 kristaps 923:
1.84 schwarze 924: if ( ! validate_manpath(req, manpath)) {
1.77 schwarze 925: pg_error_badrequest(
926: "You specified an invalid manpath.");
1.84 schwarze 927: free(manpath);
1.77 schwarze 928: return;
929: }
930:
1.24 kristaps 931: /*
1.58 schwarze 932: * Begin by chdir()ing into the manpath.
1.24 kristaps 933: * This way we can pick up the database files, which are
934: * relative to the manpath root.
935: */
936:
1.84 schwarze 937: if (chdir(manpath) == -1) {
1.128 schwarze 938: warn("chdir %s", manpath);
1.77 schwarze 939: pg_error_internal();
1.84 schwarze 940: free(manpath);
1.76 schwarze 941: return;
942: }
1.134 schwarze 943: free(manpath);
1.84 schwarze 944:
945: if ( ! validate_filename(file)) {
1.76 schwarze 946: pg_error_badrequest(
947: "You specified an invalid manual file.");
1.24 kristaps 948: return;
949: }
1.79 schwarze 950:
1.150 schwarze 951: resp_begin_html(200, NULL, file);
1.131 schwarze 952: resp_searchform(req, FOCUS_NONE);
1.84 schwarze 953: resp_show(req, file);
1.70 schwarze 954: resp_end_html();
1.6 kristaps 955: }
956:
957: static void
1.66 schwarze 958: pg_search(const struct req *req)
1.6 kristaps 959: {
1.52 schwarze 960: struct mansearch search;
961: struct manpaths paths;
962: struct manpage *res;
1.97 schwarze 963: char **argv;
964: char *query, *rp, *wp;
1.52 schwarze 965: size_t ressz;
1.97 schwarze 966: int argc;
1.6 kristaps 967:
968: /*
1.24 kristaps 969: * Begin by chdir()ing into the root of the manpath.
970: * This way we can pick up the database files, which are
971: * relative to the manpath root.
972: */
973:
1.128 schwarze 974: if (chdir(req->q.manpath) == -1) {
975: warn("chdir %s", req->q.manpath);
1.77 schwarze 976: pg_error_internal();
1.24 kristaps 977: return;
978: }
979:
1.52 schwarze 980: search.arch = req->q.arch;
981: search.sec = req->q.sec;
1.94 schwarze 982: search.outkey = "Nd";
983: search.argmode = req->q.equal ? ARG_NAME : ARG_EXPR;
1.101 schwarze 984: search.firstmatch = 1;
1.52 schwarze 985:
986: paths.sz = 1;
987: paths.paths = mandoc_malloc(sizeof(char *));
988: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 989:
990: /*
1.97 schwarze 991: * Break apart at spaces with backslash-escaping.
1.6 kristaps 992: */
993:
1.97 schwarze 994: argc = 0;
995: argv = NULL;
996: rp = query = mandoc_strdup(req->q.query);
997: for (;;) {
998: while (isspace((unsigned char)*rp))
999: rp++;
1000: if (*rp == '\0')
1001: break;
1002: argv = mandoc_reallocarray(argv, argc + 1, sizeof(char *));
1003: argv[argc++] = wp = rp;
1004: for (;;) {
1005: if (isspace((unsigned char)*rp)) {
1006: *wp = '\0';
1007: rp++;
1008: break;
1009: }
1010: if (rp[0] == '\\' && rp[1] != '\0')
1011: rp++;
1012: if (wp != rp)
1013: *wp = *rp;
1014: if (*rp == '\0')
1015: break;
1016: wp++;
1017: rp++;
1018: }
1.6 kristaps 1019: }
1020:
1.149 schwarze 1021: res = NULL;
1022: ressz = 0;
1023: if (req->isquery && req->q.equal && argc == 1)
1024: pg_redirect(req, argv[0]);
1025: else if (mansearch(&search, &paths, argc, argv, &res, &ressz) == 0)
1.168 schwarze 1026: pg_noresult(req, 400, "Bad Request",
1027: "You entered an invalid query.");
1.149 schwarze 1028: else if (ressz == 0)
1.168 schwarze 1029: pg_noresult(req, 404, "Not Found", "No results found.");
1.59 schwarze 1030: else
1.72 schwarze 1031: pg_searchres(req, res, ressz);
1.6 kristaps 1032:
1.97 schwarze 1033: free(query);
1034: mansearch_free(res, ressz);
1.52 schwarze 1035: free(paths.paths[0]);
1036: free(paths.paths);
1.1 kristaps 1037: }
1038:
1039: int
1040: main(void)
1041: {
1.66 schwarze 1042: struct req req;
1.95 schwarze 1043: struct itimerval itimer;
1.66 schwarze 1044: const char *path;
1.83 schwarze 1045: const char *querystring;
1.1 kristaps 1046: int i;
1.148 schwarze 1047:
1048: #if HAVE_PLEDGE
1049: /*
1050: * The "rpath" pledge could be revoked after mparse_readfd()
1051: * if the file desciptor to "/footer.html" would be opened
1052: * up front, but it's probably not worth the complication
1053: * of the code it would cause: it would require scattering
1054: * pledge() calls in multiple low-level resp_*() functions.
1055: */
1056:
1057: if (pledge("stdio rpath", NULL) == -1) {
1058: warn("pledge");
1059: pg_error_internal();
1060: return EXIT_FAILURE;
1061: }
1062: #endif
1.95 schwarze 1063:
1064: /* Poor man's ReDoS mitigation. */
1065:
1.99 schwarze 1066: itimer.it_value.tv_sec = 2;
1.95 schwarze 1067: itimer.it_value.tv_usec = 0;
1.99 schwarze 1068: itimer.it_interval.tv_sec = 2;
1.95 schwarze 1069: itimer.it_interval.tv_usec = 0;
1070: if (setitimer(ITIMER_VIRTUAL, &itimer, NULL) == -1) {
1.128 schwarze 1071: warn("setitimer");
1.80 schwarze 1072: pg_error_internal();
1.109 schwarze 1073: return EXIT_FAILURE;
1.80 schwarze 1074: }
1075:
1.24 kristaps 1076: /*
1.67 schwarze 1077: * First we change directory into the MAN_DIR so that
1.24 kristaps 1078: * subsequent scanning for manpath directories is rooted
1079: * relative to the same position.
1080: */
1081:
1.128 schwarze 1082: if (chdir(MAN_DIR) == -1) {
1083: warn("MAN_DIR: %s", MAN_DIR);
1.72 schwarze 1084: pg_error_internal();
1.109 schwarze 1085: return EXIT_FAILURE;
1.104 schwarze 1086: }
1.24 kristaps 1087:
1088: memset(&req, 0, sizeof(struct req));
1.118 schwarze 1089: req.q.equal = 1;
1.129 schwarze 1090: parse_manpath_conf(&req);
1.1 kristaps 1091:
1.117 schwarze 1092: /* Parse the path info and the query string. */
1.1 kristaps 1093:
1.117 schwarze 1094: if ((path = getenv("PATH_INFO")) == NULL)
1095: path = "";
1096: else if (*path == '/')
1097: path++;
1098:
1.124 schwarze 1099: if (*path != '\0') {
1.129 schwarze 1100: parse_path_info(&req, path);
1.154 schwarze 1101: if (req.q.manpath == NULL || req.q.sec == NULL ||
1102: *req.q.query == '\0' || access(path, F_OK) == -1)
1.124 schwarze 1103: path = "";
1.117 schwarze 1104: } else if ((querystring = getenv("QUERY_STRING")) != NULL)
1.129 schwarze 1105: parse_query_string(&req, querystring);
1.77 schwarze 1106:
1.117 schwarze 1107: /* Validate parsed data and add defaults. */
1108:
1.102 schwarze 1109: if (req.q.manpath == NULL)
1110: req.q.manpath = mandoc_strdup(req.p[0]);
1111: else if ( ! validate_manpath(&req, req.q.manpath)) {
1.77 schwarze 1112: pg_error_badrequest(
1113: "You specified an invalid manpath.");
1.109 schwarze 1114: return EXIT_FAILURE;
1.77 schwarze 1115: }
1.1 kristaps 1116:
1.159 schwarze 1117: if (req.q.arch != NULL && validate_arch(req.q.arch) == 0) {
1.80 schwarze 1118: pg_error_badrequest(
1119: "You specified an invalid architecture.");
1.109 schwarze 1120: return EXIT_FAILURE;
1.80 schwarze 1121: }
1122:
1.66 schwarze 1123: /* Dispatch to the three different pages. */
1.1 kristaps 1124:
1.66 schwarze 1125: if ('\0' != *path)
1126: pg_show(&req, path);
1.85 schwarze 1127: else if (NULL != req.q.query)
1.66 schwarze 1128: pg_search(&req);
1129: else
1.72 schwarze 1130: pg_index(&req);
1.1 kristaps 1131:
1.83 schwarze 1132: free(req.q.manpath);
1133: free(req.q.arch);
1134: free(req.q.sec);
1.85 schwarze 1135: free(req.q.query);
1.52 schwarze 1136: for (i = 0; i < (int)req.psz; i++)
1137: free(req.p[i]);
1.24 kristaps 1138: free(req.p);
1.109 schwarze 1139: return EXIT_SUCCESS;
1.117 schwarze 1140: }
1141:
1142: /*
1.161 schwarze 1143: * Translate PATH_INFO to a query.
1.117 schwarze 1144: */
1145: static void
1.129 schwarze 1146: parse_path_info(struct req *req, const char *path)
1.117 schwarze 1147: {
1.161 schwarze 1148: const char *name, *sec, *end;
1.117 schwarze 1149:
1.121 schwarze 1150: req->isquery = 0;
1.117 schwarze 1151: req->q.equal = 1;
1.161 schwarze 1152: req->q.manpath = NULL;
1.135 schwarze 1153: req->q.arch = NULL;
1.117 schwarze 1154:
1155: /* Mandatory manual page name. */
1.161 schwarze 1156: if ((name = strrchr(path, '/')) == NULL)
1157: name = path;
1158: else
1159: name++;
1.117 schwarze 1160:
1161: /* Optional trailing section. */
1.161 schwarze 1162: sec = strrchr(name, '.');
1163: if (sec != NULL && isdigit((unsigned char)*++sec)) {
1164: req->q.query = mandoc_strndup(name, sec - name - 1);
1165: req->q.sec = mandoc_strdup(sec);
1166: } else {
1167: req->q.query = mandoc_strdup(name);
1168: req->q.sec = NULL;
1.117 schwarze 1169: }
1170:
1171: /* Handle the case of name[.section] only. */
1.161 schwarze 1172: if (name == path)
1.117 schwarze 1173: return;
1174:
1.135 schwarze 1175: /* Optional manpath. */
1.161 schwarze 1176: end = strchr(path, '/');
1177: req->q.manpath = mandoc_strndup(path, end - path);
1178: if (validate_manpath(req, req->q.manpath)) {
1179: path = end + 1;
1180: if (name == path)
1181: return;
1182: } else {
1183: free(req->q.manpath);
1.135 schwarze 1184: req->q.manpath = NULL;
1.161 schwarze 1185: }
1.117 schwarze 1186:
1.135 schwarze 1187: /* Optional section. */
1.165 schwarze 1188: if (strncmp(path, "man", 3) == 0 || strncmp(path, "cat", 3) == 0) {
1.161 schwarze 1189: path += 3;
1190: end = strchr(path, '/');
1.127 schwarze 1191: free(req->q.sec);
1.161 schwarze 1192: req->q.sec = mandoc_strndup(path, end - path);
1193: path = end + 1;
1194: if (name == path)
1195: return;
1.117 schwarze 1196: }
1.161 schwarze 1197:
1198: /* Optional architecture. */
1199: end = strchr(path, '/');
1200: if (end + 1 != name) {
1201: pg_error_badrequest(
1202: "You specified too many directory components.");
1203: exit(EXIT_FAILURE);
1.135 schwarze 1204: }
1.161 schwarze 1205: req->q.arch = mandoc_strndup(path, end - path);
1206: if (validate_arch(req->q.arch) == 0) {
1.135 schwarze 1207: pg_error_badrequest(
1208: "You specified an invalid directory component.");
1209: exit(EXIT_FAILURE);
1210: }
1.24 kristaps 1211: }
1212:
1213: /*
1214: * Scan for indexable paths.
1215: */
1216: static void
1.129 schwarze 1217: parse_manpath_conf(struct req *req)
1.24 kristaps 1218: {
1.54 schwarze 1219: FILE *fp;
1220: char *dp;
1221: size_t dpsz;
1.115 schwarze 1222: ssize_t len;
1.54 schwarze 1223:
1.128 schwarze 1224: if ((fp = fopen("manpath.conf", "r")) == NULL) {
1225: warn("%s/manpath.conf", MAN_DIR);
1.74 schwarze 1226: pg_error_internal();
1227: exit(EXIT_FAILURE);
1228: }
1.24 kristaps 1229:
1.115 schwarze 1230: dp = NULL;
1231: dpsz = 0;
1232:
1233: while ((len = getline(&dp, &dpsz, fp)) != -1) {
1234: if (dp[len - 1] == '\n')
1235: dp[--len] = '\0';
1.54 schwarze 1236: req->p = mandoc_realloc(req->p,
1237: (req->psz + 1) * sizeof(char *));
1.80 schwarze 1238: if ( ! validate_urifrag(dp)) {
1.128 schwarze 1239: warnx("%s/manpath.conf contains "
1240: "unsafe path \"%s\"", MAN_DIR, dp);
1.80 schwarze 1241: pg_error_internal();
1242: exit(EXIT_FAILURE);
1243: }
1.128 schwarze 1244: if (strchr(dp, '/') != NULL) {
1245: warnx("%s/manpath.conf contains "
1246: "path with slash \"%s\"", MAN_DIR, dp);
1.80 schwarze 1247: pg_error_internal();
1248: exit(EXIT_FAILURE);
1249: }
1250: req->p[req->psz++] = dp;
1.115 schwarze 1251: dp = NULL;
1252: dpsz = 0;
1.74 schwarze 1253: }
1.115 schwarze 1254: free(dp);
1.74 schwarze 1255:
1.128 schwarze 1256: if (req->p == NULL) {
1257: warnx("%s/manpath.conf is empty", MAN_DIR);
1.74 schwarze 1258: pg_error_internal();
1259: exit(EXIT_FAILURE);
1.24 kristaps 1260: }
1261: }
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