Annotation of mandoc/cgi.c, Revision 1.177
1.177 ! schwarze 1: /* $Id: cgi.c,v 1.176 2021/11/05 17:04:10 schwarze Exp $ */
1.6 kristaps 2: /*
1.175 schwarze 3: * Copyright (c) 2014-2019, 2021 Ingo Schwarze <schwarze@usta.de>
1.42 kristaps 4: * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.177 ! schwarze 5: * Copyright (c) 2022 Anna Vyalkova <cyber@sysrq.in>
1.6 kristaps 6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
1.105 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.6 kristaps 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.105 schwarze 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.6 kristaps 14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.172 schwarze 18: *
19: * Implementation of the man.cgi(8) program.
1.6 kristaps 20: */
21: #include "config.h"
1.93 schwarze 22:
23: #include <sys/types.h>
1.95 schwarze 24: #include <sys/time.h>
1.6 kristaps 25:
26: #include <ctype.h>
1.147 schwarze 27: #if HAVE_ERR
1.128 schwarze 28: #include <err.h>
1.147 schwarze 29: #endif
1.58 schwarze 30: #include <errno.h>
1.1 kristaps 31: #include <fcntl.h>
1.6 kristaps 32: #include <limits.h>
1.92 schwarze 33: #include <stdint.h>
1.1 kristaps 34: #include <stdio.h>
35: #include <stdlib.h>
36: #include <string.h>
1.6 kristaps 37: #include <unistd.h>
1.1 kristaps 38:
1.108 schwarze 39: #include "mandoc_aux.h"
1.4 schwarze 40: #include "mandoc.h"
1.108 schwarze 41: #include "roff.h"
1.111 schwarze 42: #include "mdoc.h"
1.112 schwarze 43: #include "man.h"
1.162 schwarze 44: #include "mandoc_parse.h"
1.8 kristaps 45: #include "main.h"
1.105 schwarze 46: #include "manconf.h"
1.52 schwarze 47: #include "mansearch.h"
1.67 schwarze 48: #include "cgi.h"
1.1 kristaps 49:
1.20 kristaps 50: /*
51: * A query as passed to the search function.
52: */
53: struct query {
1.83 schwarze 54: char *manpath; /* desired manual directory */
55: char *arch; /* architecture */
56: char *sec; /* manual section */
1.85 schwarze 57: char *query; /* unparsed query expression */
1.65 schwarze 58: int equal; /* match whole names, not substrings */
1.20 kristaps 59: };
60:
1.1 kristaps 61: struct req {
1.58 schwarze 62: struct query q;
63: char **p; /* array of available manpaths */
64: size_t psz; /* number of available manpaths */
1.121 schwarze 65: int isquery; /* QUERY_STRING used, not PATH_INFO */
1.1 kristaps 66: };
67:
1.131 schwarze 68: enum focus {
69: FOCUS_NONE = 0,
70: FOCUS_QUERY
71: };
72:
1.6 kristaps 73: static void html_print(const char *);
1.10 kristaps 74: static void html_putchar(char);
1.104 schwarze 75: static int http_decode(char *);
1.172 schwarze 76: static void http_encode(const char *);
1.129 schwarze 77: static void parse_manpath_conf(struct req *);
1.172 schwarze 78: static void parse_path_info(struct req *, const char *);
1.129 schwarze 79: static void parse_query_string(struct req *, const char *);
1.72 schwarze 80: static void pg_error_badrequest(const char *);
81: static void pg_error_internal(void);
82: static void pg_index(const struct req *);
1.168 schwarze 83: static void pg_noresult(const struct req *, int, const char *,
84: const char *);
1.149 schwarze 85: static void pg_redirect(const struct req *, const char *);
1.66 schwarze 86: static void pg_search(const struct req *);
1.72 schwarze 87: static void pg_searchres(const struct req *,
88: struct manpage *, size_t);
1.79 schwarze 89: static void pg_show(struct req *, const char *);
1.150 schwarze 90: static void resp_begin_html(int, const char *, const char *);
1.6 kristaps 91: static void resp_begin_http(int, const char *);
1.129 schwarze 92: static void resp_catman(const struct req *, const char *);
1.114 schwarze 93: static void resp_copy(const char *);
1.6 kristaps 94: static void resp_end_html(void);
1.129 schwarze 95: static void resp_format(const struct req *, const char *);
1.131 schwarze 96: static void resp_searchform(const struct req *, enum focus);
1.70 schwarze 97: static void resp_show(const struct req *, const char *);
1.85 schwarze 98: static void set_query_attr(char **, char **);
1.159 schwarze 99: static int validate_arch(const char *);
1.85 schwarze 100: static int validate_filename(const char *);
101: static int validate_manpath(const struct req *, const char *);
102: static int validate_urifrag(const char *);
1.6 kristaps 103:
1.119 schwarze 104: static const char *scriptname = SCRIPT_NAME;
1.1 kristaps 105:
1.70 schwarze 106: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.68 schwarze 107: static const char *const sec_numbers[] = {
108: "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
109: };
110: static const char *const sec_names[] = {
111: "All Sections",
112: "1 - General Commands",
113: "2 - System Calls",
1.96 schwarze 114: "3 - Library Functions",
115: "3p - Perl Library",
116: "4 - Device Drivers",
1.68 schwarze 117: "5 - File Formats",
118: "6 - Games",
1.96 schwarze 119: "7 - Miscellaneous Information",
120: "8 - System Manager\'s Manual",
121: "9 - Kernel Developer\'s Manual"
1.68 schwarze 122: };
123: static const int sec_MAX = sizeof(sec_names) / sizeof(char *);
124:
125: static const char *const arch_names[] = {
1.173 schwarze 126: "amd64", "alpha", "armv7", "arm64",
127: "hppa", "i386", "landisk", "loongson",
128: "luna88k", "macppc", "mips64", "octeon",
1.174 schwarze 129: "powerpc64", "riscv64", "sparc64",
1.173 schwarze 130:
1.137 schwarze 131: "amiga", "arc", "armish", "arm32",
132: "atari", "aviion", "beagle", "cats",
133: "hppa64", "hp300",
1.125 schwarze 134: "ia64", "mac68k", "mvme68k", "mvme88k",
135: "mvmeppc", "palm", "pc532", "pegasos",
1.174 schwarze 136: "pmax", "powerpc", "sgi", "socppc",
137: "solbourne", "sparc",
1.140 schwarze 138: "sun3", "vax", "wgrisc", "x68k",
139: "zaurus"
1.68 schwarze 140: };
141: static const int arch_MAX = sizeof(arch_names) / sizeof(char *);
142:
1.6 kristaps 143: /*
1.20 kristaps 144: * Print a character, escaping HTML along the way.
145: * This will pass non-ASCII straight to output: be warned!
146: */
1.10 kristaps 147: static void
148: html_putchar(char c)
149: {
150:
151: switch (c) {
1.155 schwarze 152: case '"':
1.141 schwarze 153: printf(""");
1.10 kristaps 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;
1.155 schwarze 161: case '<':
1.10 kristaps 162: printf("<");
163: break;
164: default:
165: putchar((unsigned char)c);
166: break;
167: }
168: }
1.57 schwarze 169:
1.6 kristaps 170: /*
1.20 kristaps 171: * Call through to html_putchar().
172: * Accepts NULL strings.
1.6 kristaps 173: */
1.1 kristaps 174: static void
1.6 kristaps 175: html_print(const char *p)
1.1 kristaps 176: {
1.104 schwarze 177:
1.6 kristaps 178: if (NULL == p)
179: return;
1.1 kristaps 180: while ('\0' != *p)
1.10 kristaps 181: html_putchar(*p++);
1.1 kristaps 182: }
183:
184: /*
1.83 schwarze 185: * Transfer the responsibility for the allocated string *val
186: * to the query structure.
1.1 kristaps 187: */
188: static void
1.83 schwarze 189: set_query_attr(char **attr, char **val)
1.1 kristaps 190: {
191:
1.83 schwarze 192: free(*attr);
193: if (**val == '\0') {
194: *attr = NULL;
195: free(*val);
196: } else
197: *attr = *val;
198: *val = NULL;
199: }
200:
201: /*
202: * Parse the QUERY_STRING for key-value pairs
203: * and store the values into the query structure.
204: */
205: static void
1.129 schwarze 206: parse_query_string(struct req *req, const char *qs)
1.83 schwarze 207: {
208: char *key, *val;
209: size_t keysz, valsz;
210:
1.121 schwarze 211: req->isquery = 1;
1.83 schwarze 212: req->q.manpath = NULL;
213: req->q.arch = NULL;
214: req->q.sec = NULL;
1.85 schwarze 215: req->q.query = NULL;
1.83 schwarze 216: req->q.equal = 1;
217:
218: key = val = NULL;
219: while (*qs != '\0') {
1.24 kristaps 220:
1.83 schwarze 221: /* Parse one key. */
222:
223: keysz = strcspn(qs, "=;&");
224: key = mandoc_strndup(qs, keysz);
225: qs += keysz;
226: if (*qs != '=')
227: goto next;
228:
229: /* Parse one value. */
230:
231: valsz = strcspn(++qs, ";&");
232: val = mandoc_strndup(qs, valsz);
233: qs += valsz;
234:
235: /* Decode and catch encoding errors. */
1.1 kristaps 236:
1.83 schwarze 237: if ( ! (http_decode(key) && http_decode(val)))
238: goto next;
1.1 kristaps 239:
1.83 schwarze 240: /* Handle key-value pairs. */
1.1 kristaps 241:
1.83 schwarze 242: if ( ! strcmp(key, "query"))
1.85 schwarze 243: set_query_attr(&req->q.query, &val);
1.1 kristaps 244:
1.83 schwarze 245: else if ( ! strcmp(key, "apropos"))
246: req->q.equal = !strcmp(val, "0");
247:
248: else if ( ! strcmp(key, "manpath")) {
1.73 schwarze 249: #ifdef COMPAT_OLDURI
1.83 schwarze 250: if ( ! strncmp(val, "OpenBSD ", 8)) {
1.73 schwarze 251: val[7] = '-';
252: if ('C' == val[8])
253: val[8] = 'c';
254: }
255: #endif
1.83 schwarze 256: set_query_attr(&req->q.manpath, &val);
257: }
258:
259: else if ( ! (strcmp(key, "sec")
1.73 schwarze 260: #ifdef COMPAT_OLDURI
1.83 schwarze 261: && strcmp(key, "sektion")
1.73 schwarze 262: #endif
1.83 schwarze 263: )) {
264: if ( ! strcmp(val, "0"))
265: *val = '\0';
266: set_query_attr(&req->q.sec, &val);
1.65 schwarze 267: }
1.83 schwarze 268:
269: else if ( ! strcmp(key, "arch")) {
270: if ( ! strcmp(val, "default"))
271: *val = '\0';
272: set_query_attr(&req->q.arch, &val);
273: }
274:
275: /*
276: * The key must be freed in any case.
277: * The val may have been handed over to the query
278: * structure, in which case it is now NULL.
279: */
280: next:
281: free(key);
282: key = NULL;
283: free(val);
284: val = NULL;
285:
286: if (*qs != '\0')
287: qs++;
1.24 kristaps 288: }
1.1 kristaps 289: }
290:
291: /*
1.6 kristaps 292: * HTTP-decode a string. The standard explanation is that this turns
293: * "%4e+foo" into "n foo" in the regular way. This is done in-place
294: * over the allocated string.
1.1 kristaps 295: */
296: static int
1.24 kristaps 297: http_decode(char *p)
1.1 kristaps 298: {
299: char hex[3];
1.63 schwarze 300: char *q;
1.1 kristaps 301: int c;
302:
303: hex[2] = '\0';
304:
1.63 schwarze 305: q = p;
306: for ( ; '\0' != *p; p++, q++) {
1.1 kristaps 307: if ('%' == *p) {
308: if ('\0' == (hex[0] = *(p + 1)))
1.109 schwarze 309: return 0;
1.1 kristaps 310: if ('\0' == (hex[1] = *(p + 2)))
1.109 schwarze 311: return 0;
1.1 kristaps 312: if (1 != sscanf(hex, "%x", &c))
1.109 schwarze 313: return 0;
1.1 kristaps 314: if ('\0' == c)
1.109 schwarze 315: return 0;
1.1 kristaps 316:
1.63 schwarze 317: *q = (char)c;
318: p += 2;
1.1 kristaps 319: } else
1.63 schwarze 320: *q = '+' == *p ? ' ' : *p;
1.1 kristaps 321: }
322:
1.63 schwarze 323: *q = '\0';
1.109 schwarze 324: return 1;
1.1 kristaps 325: }
326:
1.6 kristaps 327: static void
1.159 schwarze 328: http_encode(const char *p)
329: {
330: for (; *p != '\0'; p++) {
331: if (isalnum((unsigned char)*p) == 0 &&
332: strchr("-._~", *p) == NULL)
1.166 schwarze 333: printf("%%%2.2X", (unsigned char)*p);
1.159 schwarze 334: else
335: putchar(*p);
336: }
337: }
338:
339: static void
1.6 kristaps 340: resp_begin_http(int code, const char *msg)
341: {
342:
343: if (200 != code)
1.62 schwarze 344: printf("Status: %d %s\r\n", code, msg);
1.6 kristaps 345:
1.62 schwarze 346: printf("Content-Type: text/html; charset=utf-8\r\n"
347: "Cache-Control: no-cache\r\n"
1.169 schwarze 348: "Content-Security-Policy: default-src 'none'; "
349: "style-src 'self' 'unsafe-inline'\r\n"
1.62 schwarze 350: "Pragma: no-cache\r\n"
351: "\r\n");
1.6 kristaps 352:
353: fflush(stdout);
354: }
355:
356: static void
1.114 schwarze 357: resp_copy(const char *filename)
358: {
359: char buf[4096];
360: ssize_t sz;
361: int fd;
362:
363: if ((fd = open(filename, O_RDONLY)) != -1) {
364: fflush(stdout);
365: while ((sz = read(fd, buf, sizeof(buf))) > 0)
366: write(STDOUT_FILENO, buf, sz);
1.138 schwarze 367: close(fd);
1.114 schwarze 368: }
369: }
370:
371: static void
1.150 schwarze 372: resp_begin_html(int code, const char *msg, const char *file)
1.6 kristaps 373: {
1.175 schwarze 374: const char *name, *sec, *cp;
375: int namesz, secsz;
1.6 kristaps 376:
377: resp_begin_http(code, msg);
378:
1.98 kristaps 379: printf("<!DOCTYPE html>\n"
1.126 schwarze 380: "<html>\n"
381: "<head>\n"
1.143 schwarze 382: " <meta charset=\"UTF-8\"/>\n"
1.157 schwarze 383: " <meta name=\"viewport\""
384: " content=\"width=device-width, initial-scale=1.0\">\n"
1.143 schwarze 385: " <link rel=\"stylesheet\" href=\"%s/mandoc.css\""
1.126 schwarze 386: " type=\"text/css\" media=\"all\">\n"
1.150 schwarze 387: " <title>",
388: CSS_DIR);
389: if (file != NULL) {
1.175 schwarze 390: cp = strrchr(file, '/');
391: name = cp == NULL ? file : cp + 1;
392: cp = strrchr(name, '.');
393: namesz = cp == NULL ? strlen(name) : cp - name;
394: sec = NULL;
395: if (cp != NULL && cp[1] != '0') {
396: sec = cp + 1;
397: secsz = strlen(sec);
398: } else if (name - file > 1) {
399: for (cp = name - 2; cp >= file; cp--) {
400: if (*cp < '1' || *cp > '9')
401: continue;
402: sec = cp;
403: secsz = name - cp - 1;
404: break;
405: }
406: }
407: printf("%.*s", namesz, name);
408: if (sec != NULL)
409: printf("(%.*s)", secsz, sec);
410: fputs(" - ", stdout);
1.150 schwarze 411: }
412: printf("%s</title>\n"
1.126 schwarze 413: "</head>\n"
1.142 schwarze 414: "<body>\n",
1.150 schwarze 415: CUSTOMIZE_TITLE);
1.114 schwarze 416:
417: resp_copy(MAN_DIR "/header.html");
1.6 kristaps 418: }
419:
420: static void
421: resp_end_html(void)
422: {
423:
1.114 schwarze 424: resp_copy(MAN_DIR "/footer.html");
425:
1.126 schwarze 426: puts("</body>\n"
427: "</html>");
1.6 kristaps 428: }
429:
430: static void
1.131 schwarze 431: resp_searchform(const struct req *req, enum focus focus)
1.6 kristaps 432: {
1.27 kristaps 433: int i;
1.13 kristaps 434:
1.177 ! schwarze 435: printf("<header>\n"
! 436: "<form role=\"search\" action=\"/%s\" method=\"get\" "
1.171 schwarze 437: "autocomplete=\"off\" autocapitalize=\"none\">\n"
1.143 schwarze 438: " <fieldset>\n"
439: " <legend>Manual Page Search Parameters</legend>\n",
1.58 schwarze 440: scriptname);
1.68 schwarze 441:
442: /* Write query input box. */
443:
1.158 schwarze 444: printf(" <input type=\"search\" name=\"query\" value=\"");
1.131 schwarze 445: if (req->q.query != NULL)
1.85 schwarze 446: html_print(req->q.query);
1.131 schwarze 447: printf( "\" size=\"40\"");
448: if (focus == FOCUS_QUERY)
449: printf(" autofocus");
450: puts(">");
1.68 schwarze 451:
1.132 schwarze 452: /* Write submission buttons. */
1.68 schwarze 453:
1.143 schwarze 454: printf( " <button type=\"submit\" name=\"apropos\" value=\"0\">"
1.132 schwarze 455: "man</button>\n"
1.143 schwarze 456: " <button type=\"submit\" name=\"apropos\" value=\"1\">"
457: "apropos</button>\n"
458: " <br/>\n");
1.68 schwarze 459:
460: /* Write section selector. */
461:
1.177 ! schwarze 462: puts(" <select name=\"sec\" aria-label=\"manual section\">");
1.68 schwarze 463: for (i = 0; i < sec_MAX; i++) {
1.143 schwarze 464: printf(" <option value=\"%s\"", sec_numbers[i]);
1.68 schwarze 465: if (NULL != req->q.sec &&
466: 0 == strcmp(sec_numbers[i], req->q.sec))
1.126 schwarze 467: printf(" selected=\"selected\"");
468: printf(">%s</option>\n", sec_names[i]);
1.68 schwarze 469: }
1.143 schwarze 470: puts(" </select>");
1.68 schwarze 471:
472: /* Write architecture selector. */
473:
1.177 ! schwarze 474: printf( " <select name=\"arch\" aria-label=\"CPU architecture\">\n"
1.143 schwarze 475: " <option value=\"default\"");
1.81 schwarze 476: if (NULL == req->q.arch)
1.126 schwarze 477: printf(" selected=\"selected\"");
478: puts(">All Architectures</option>");
1.68 schwarze 479: for (i = 0; i < arch_MAX; i++) {
1.158 schwarze 480: printf(" <option");
1.68 schwarze 481: if (NULL != req->q.arch &&
482: 0 == strcmp(arch_names[i], req->q.arch))
1.126 schwarze 483: printf(" selected=\"selected\"");
484: printf(">%s</option>\n", arch_names[i]);
1.68 schwarze 485: }
1.143 schwarze 486: puts(" </select>");
1.68 schwarze 487:
488: /* Write manpath selector. */
489:
1.27 kristaps 490: if (req->psz > 1) {
1.143 schwarze 491: puts(" <select name=\"manpath\">");
1.27 kristaps 492: for (i = 0; i < (int)req->psz; i++) {
1.158 schwarze 493: printf(" <option");
1.102 schwarze 494: if (strcmp(req->q.manpath, req->p[i]) == 0)
1.158 schwarze 495: printf(" selected=\"selected\"");
496: printf(">");
1.52 schwarze 497: html_print(req->p[i]);
1.126 schwarze 498: puts("</option>");
1.27 kristaps 499: }
1.143 schwarze 500: puts(" </select>");
1.27 kristaps 501: }
1.68 schwarze 502:
1.143 schwarze 503: puts(" </fieldset>\n"
1.177 ! schwarze 504: "</form>\n"
! 505: "</header>");
1.6 kristaps 506: }
507:
1.76 schwarze 508: static int
1.80 schwarze 509: validate_urifrag(const char *frag)
510: {
511:
512: while ('\0' != *frag) {
513: if ( ! (isalnum((unsigned char)*frag) ||
514: '-' == *frag || '.' == *frag ||
515: '/' == *frag || '_' == *frag))
1.109 schwarze 516: return 0;
1.80 schwarze 517: frag++;
518: }
1.109 schwarze 519: return 1;
1.80 schwarze 520: }
521:
522: static int
1.77 schwarze 523: validate_manpath(const struct req *req, const char* manpath)
524: {
525: size_t i;
526:
527: for (i = 0; i < req->psz; i++)
528: if ( ! strcmp(manpath, req->p[i]))
1.109 schwarze 529: return 1;
1.77 schwarze 530:
1.109 schwarze 531: return 0;
1.77 schwarze 532: }
533:
534: static int
1.159 schwarze 535: validate_arch(const char *arch)
536: {
537: int i;
538:
539: for (i = 0; i < arch_MAX; i++)
540: if (strcmp(arch, arch_names[i]) == 0)
541: return 1;
542:
543: return 0;
544: }
545:
546: static int
1.76 schwarze 547: validate_filename(const char *file)
548: {
549:
550: if ('.' == file[0] && '/' == file[1])
551: file += 2;
552:
1.109 schwarze 553: return ! (strstr(file, "../") || strstr(file, "/..") ||
554: (strncmp(file, "man", 3) && strncmp(file, "cat", 3)));
1.76 schwarze 555: }
556:
1.6 kristaps 557: static void
1.72 schwarze 558: pg_index(const struct req *req)
1.6 kristaps 559: {
560:
1.150 schwarze 561: resp_begin_html(200, NULL, NULL);
1.131 schwarze 562: resp_searchform(req, FOCUS_QUERY);
1.177 ! schwarze 563: printf("<main>\n"
! 564: "<p role=\"doc-notice\" aria-label=\"usage\">\n"
1.86 schwarze 565: "This web interface is documented in the\n"
1.177 ! schwarze 566: "<a class=\"Xr\" href=\"/%s%sman.cgi.8\""
! 567: " aria-label=\"man dot CGI, section 8\">man.cgi(8)</a>\n"
1.86 schwarze 568: "manual, and the\n"
1.177 ! schwarze 569: "<a class=\"Xr\" href=\"/%s%sapropos.1\""
! 570: " aria-label=\"apropos, section 1\">apropos(1)</a>\n"
1.69 schwarze 571: "manual explains the query syntax.\n"
1.177 ! schwarze 572: "</p>\n"
! 573: "</main>\n",
1.119 schwarze 574: scriptname, *scriptname == '\0' ? "" : "/",
575: scriptname, *scriptname == '\0' ? "" : "/");
1.6 kristaps 576: resp_end_html();
577: }
578:
579: static void
1.168 schwarze 580: pg_noresult(const struct req *req, int code, const char *http_msg,
581: const char *user_msg)
1.59 schwarze 582: {
1.168 schwarze 583: resp_begin_html(code, http_msg, NULL);
1.131 schwarze 584: resp_searchform(req, FOCUS_QUERY);
1.177 ! schwarze 585: puts("<main>");
! 586: puts("<p role=\"doc-notice\" aria-label=\"no result\">");
1.168 schwarze 587: puts(user_msg);
1.126 schwarze 588: puts("</p>");
1.177 ! schwarze 589: puts("</main>");
1.59 schwarze 590: resp_end_html();
591: }
592:
593: static void
1.72 schwarze 594: pg_error_badrequest(const char *msg)
1.9 kristaps 595: {
596:
1.150 schwarze 597: resp_begin_html(400, "Bad Request", NULL);
1.177 ! schwarze 598: puts("<main>\n"
! 599: "<h1>Bad Request</h1>\n"
! 600: "<p role=\"doc-notice\" aria-label=\"Bad Request\">");
1.59 schwarze 601: puts(msg);
602: printf("Try again from the\n"
1.126 schwarze 603: "<a href=\"/%s\">main page</a>.\n"
1.177 ! schwarze 604: "</p>\n"
! 605: "</main>", scriptname);
1.9 kristaps 606: resp_end_html();
607: }
608:
609: static void
1.72 schwarze 610: pg_error_internal(void)
1.7 kristaps 611: {
1.150 schwarze 612: resp_begin_html(500, "Internal Server Error", NULL);
1.177 ! schwarze 613: puts("<main><p role=\"doc-notice\">Internal Server Error</p></main>");
1.7 kristaps 614: resp_end_html();
615: }
616:
617: static void
1.149 schwarze 618: pg_redirect(const struct req *req, const char *name)
619: {
1.153 schwarze 620: printf("Status: 303 See Other\r\n"
621: "Location: /");
1.149 schwarze 622: if (*scriptname != '\0')
623: printf("%s/", scriptname);
624: if (strcmp(req->q.manpath, req->p[0]))
625: printf("%s/", req->q.manpath);
626: if (req->q.arch != NULL)
627: printf("%s/", req->q.arch);
1.159 schwarze 628: http_encode(name);
629: if (req->q.sec != NULL) {
630: putchar('.');
631: http_encode(req->q.sec);
632: }
1.149 schwarze 633: printf("\r\nContent-Type: text/html; charset=utf-8\r\n\r\n");
634: }
635:
636: static void
1.72 schwarze 637: pg_searchres(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 638: {
1.81 schwarze 639: char *arch, *archend;
1.120 schwarze 640: const char *sec;
641: size_t i, iuse;
1.81 schwarze 642: int archprio, archpriouse;
1.70 schwarze 643: int prio, priouse;
1.19 kristaps 644:
1.76 schwarze 645: for (i = 0; i < sz; i++) {
646: if (validate_filename(r[i].file))
647: continue;
1.128 schwarze 648: warnx("invalid filename %s in %s database",
1.76 schwarze 649: r[i].file, req->q.manpath);
650: pg_error_internal();
651: return;
652: }
653:
1.121 schwarze 654: if (req->isquery && sz == 1) {
1.6 kristaps 655: /*
656: * If we have just one result, then jump there now
657: * without any delay.
658: */
1.153 schwarze 659: printf("Status: 303 See Other\r\n"
660: "Location: /");
661: if (*scriptname != '\0')
662: printf("%s/", scriptname);
663: if (strcmp(req->q.manpath, req->p[0]))
664: printf("%s/", req->q.manpath);
665: printf("%s\r\n"
666: "Content-Type: text/html; charset=utf-8\r\n\r\n",
667: r[0].file);
1.6 kristaps 668: return;
669: }
670:
1.70 schwarze 671: /*
672: * In man(1) mode, show one of the pages
673: * even if more than one is found.
674: */
675:
1.150 schwarze 676: iuse = 0;
1.123 schwarze 677: if (req->q.equal || sz == 1) {
1.120 schwarze 678: priouse = 20;
1.81 schwarze 679: archpriouse = 3;
1.70 schwarze 680: for (i = 0; i < sz; i++) {
1.120 schwarze 681: sec = r[i].file;
682: sec += strcspn(sec, "123456789");
683: if (sec[0] == '\0')
1.70 schwarze 684: continue;
1.120 schwarze 685: prio = sec_prios[sec[0] - '1'];
686: if (sec[1] != '/')
687: prio += 10;
688: if (req->q.arch == NULL) {
1.81 schwarze 689: archprio =
1.120 schwarze 690: ((arch = strchr(sec + 1, '/'))
691: == NULL) ? 3 :
692: ((archend = strchr(arch + 1, '/'))
693: == NULL) ? 0 :
1.81 schwarze 694: strncmp(arch, "amd64/",
695: archend - arch) ? 2 : 1;
696: if (archprio < archpriouse) {
697: archpriouse = archprio;
698: priouse = prio;
699: iuse = i;
700: continue;
701: }
702: if (archprio > archpriouse)
703: continue;
704: }
1.70 schwarze 705: if (prio >= priouse)
706: continue;
707: priouse = prio;
708: iuse = i;
709: }
1.150 schwarze 710: resp_begin_html(200, NULL, r[iuse].file);
711: } else
712: resp_begin_html(200, NULL, NULL);
713:
714: resp_searchform(req,
715: req->q.equal || sz == 1 ? FOCUS_NONE : FOCUS_QUERY);
716:
717: if (sz > 1) {
1.177 ! schwarze 718: puts("<nav>");
1.150 schwarze 719: puts("<table class=\"results\">");
720: for (i = 0; i < sz; i++) {
721: printf(" <tr>\n"
722: " <td>"
1.151 schwarze 723: "<a class=\"Xr\" href=\"/");
724: if (*scriptname != '\0')
725: printf("%s/", scriptname);
726: if (strcmp(req->q.manpath, req->p[0]))
727: printf("%s/", req->q.manpath);
728: printf("%s\">", r[i].file);
1.150 schwarze 729: html_print(r[i].names);
730: printf("</a></td>\n"
731: " <td><span class=\"Nd\">");
732: html_print(r[i].output);
733: puts("</span></td>\n"
734: " </tr>");
735: }
736: puts("</table>");
1.177 ! schwarze 737: puts("</nav>");
1.150 schwarze 738: }
739:
740: if (req->q.equal || sz == 1) {
741: puts("<hr>");
1.70 schwarze 742: resp_show(req, r[iuse].file);
743: }
744:
1.6 kristaps 745: resp_end_html();
746: }
747:
1.1 kristaps 748: static void
1.129 schwarze 749: resp_catman(const struct req *req, const char *file)
1.9 kristaps 750: {
1.10 kristaps 751: FILE *f;
1.115 schwarze 752: char *p;
753: size_t sz;
754: ssize_t len;
1.10 kristaps 755: int i;
756: int italic, bold;
1.9 kristaps 757:
1.115 schwarze 758: if ((f = fopen(file, "r")) == NULL) {
1.177 ! schwarze 759: puts("<p role=\"doc-notice\">\n"
! 760: " You specified an invalid manual file.\n"
! 761: "</p>");
1.9 kristaps 762: return;
763: }
764:
1.126 schwarze 765: puts("<div class=\"catman\">\n"
766: "<pre>");
1.10 kristaps 767:
1.115 schwarze 768: p = NULL;
769: sz = 0;
770:
771: while ((len = getline(&p, &sz, f)) != -1) {
1.10 kristaps 772: bold = italic = 0;
1.115 schwarze 773: for (i = 0; i < len - 1; i++) {
1.104 schwarze 774: /*
1.10 kristaps 775: * This means that the catpage is out of state.
776: * Ignore it and keep going (although the
777: * catpage is bogus).
778: */
779:
780: if ('\b' == p[i] || '\n' == p[i])
781: continue;
782:
783: /*
784: * Print a regular character.
785: * Close out any bold/italic scopes.
786: * If we're in back-space mode, make sure we'll
787: * have something to enter when we backspace.
788: */
789:
790: if ('\b' != p[i + 1]) {
791: if (italic)
1.126 schwarze 792: printf("</i>");
1.10 kristaps 793: if (bold)
1.126 schwarze 794: printf("</b>");
1.10 kristaps 795: italic = bold = 0;
796: html_putchar(p[i]);
797: continue;
1.115 schwarze 798: } else if (i + 2 >= len)
1.10 kristaps 799: continue;
800:
801: /* Italic mode. */
802:
803: if ('_' == p[i]) {
804: if (bold)
1.126 schwarze 805: printf("</b>");
1.10 kristaps 806: if ( ! italic)
1.126 schwarze 807: printf("<i>");
1.10 kristaps 808: bold = 0;
809: italic = 1;
810: i += 2;
811: html_putchar(p[i]);
812: continue;
813: }
814:
1.104 schwarze 815: /*
1.10 kristaps 816: * Handle funny behaviour troff-isms.
817: * These grok'd from the original man2html.c.
818: */
819:
820: if (('+' == p[i] && 'o' == p[i + 2]) ||
821: ('o' == p[i] && '+' == p[i + 2]) ||
822: ('|' == p[i] && '=' == p[i + 2]) ||
823: ('=' == p[i] && '|' == p[i + 2]) ||
824: ('*' == p[i] && '=' == p[i + 2]) ||
825: ('=' == p[i] && '*' == p[i + 2]) ||
826: ('*' == p[i] && '|' == p[i + 2]) ||
827: ('|' == p[i] && '*' == p[i + 2])) {
828: if (italic)
1.126 schwarze 829: printf("</i>");
1.10 kristaps 830: if (bold)
1.126 schwarze 831: printf("</b>");
1.10 kristaps 832: italic = bold = 0;
833: putchar('*');
834: i += 2;
835: continue;
836: } else if (('|' == p[i] && '-' == p[i + 2]) ||
837: ('-' == p[i] && '|' == p[i + 1]) ||
838: ('+' == p[i] && '-' == p[i + 1]) ||
839: ('-' == p[i] && '+' == p[i + 1]) ||
840: ('+' == p[i] && '|' == p[i + 1]) ||
841: ('|' == p[i] && '+' == p[i + 1])) {
842: if (italic)
1.126 schwarze 843: printf("</i>");
1.10 kristaps 844: if (bold)
1.126 schwarze 845: printf("</b>");
1.10 kristaps 846: italic = bold = 0;
847: putchar('+');
848: i += 2;
849: continue;
850: }
851:
852: /* Bold mode. */
1.104 schwarze 853:
1.10 kristaps 854: if (italic)
1.126 schwarze 855: printf("</i>");
1.10 kristaps 856: if ( ! bold)
1.126 schwarze 857: printf("<b>");
1.10 kristaps 858: bold = 1;
859: italic = 0;
860: i += 2;
861: html_putchar(p[i]);
862: }
863:
1.104 schwarze 864: /*
1.10 kristaps 865: * Clean up the last character.
1.104 schwarze 866: * We can get to a newline; don't print that.
1.10 kristaps 867: */
1.9 kristaps 868:
1.10 kristaps 869: if (italic)
1.126 schwarze 870: printf("</i>");
1.10 kristaps 871: if (bold)
1.126 schwarze 872: printf("</b>");
1.9 kristaps 873:
1.115 schwarze 874: if (i == len - 1 && p[i] != '\n')
1.10 kristaps 875: html_putchar(p[i]);
1.9 kristaps 876:
1.10 kristaps 877: putchar('\n');
878: }
1.115 schwarze 879: free(p);
1.10 kristaps 880:
1.126 schwarze 881: puts("</pre>\n"
882: "</div>");
1.10 kristaps 883:
884: fclose(f);
1.9 kristaps 885: }
886:
887: static void
1.129 schwarze 888: resp_format(const struct req *req, const char *file)
1.7 kristaps 889: {
1.106 schwarze 890: struct manoutput conf;
1.8 kristaps 891: struct mparse *mp;
1.164 schwarze 892: struct roff_meta *meta;
1.8 kristaps 893: void *vp;
1.90 schwarze 894: int fd;
895: int usepath;
1.7 kristaps 896:
1.176 schwarze 897: if (-1 == (fd = open(file, O_RDONLY))) {
1.177 ! schwarze 898: puts("<p role=\"doc-notice\">\n"
! 899: " You specified an invalid manual file.\n"
! 900: "</p>");
1.7 kristaps 901: return;
902: }
903:
1.110 schwarze 904: mchars_alloc();
1.164 schwarze 905: mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1 |
906: MPARSE_VALIDATE, MANDOC_OS_OTHER, req->q.manpath);
1.103 schwarze 907: mparse_readfd(mp, fd, file);
1.8 kristaps 908: close(fd);
1.164 schwarze 909: meta = mparse_result(mp);
1.7 kristaps 910:
1.106 schwarze 911: memset(&conf, 0, sizeof(conf));
912: conf.fragment = 1;
1.145 schwarze 913: conf.style = mandoc_strdup(CSS_DIR "/mandoc.css");
1.90 schwarze 914: usepath = strcmp(req->q.manpath, req->p[0]);
1.152 schwarze 915: mandoc_asprintf(&conf.man, "/%s%s%s%s%%N.%%S",
916: scriptname, *scriptname == '\0' ? "" : "/",
1.122 schwarze 917: usepath ? req->q.manpath : "", usepath ? "/" : "");
1.10 kristaps 918:
1.110 schwarze 919: vp = html_alloc(&conf);
1.164 schwarze 920: if (meta->macroset == MACROSET_MDOC)
921: html_mdoc(vp, meta);
922: else
923: html_man(vp, meta);
1.32 kristaps 924:
1.8 kristaps 925: html_free(vp);
926: mparse_free(mp);
1.110 schwarze 927: mchars_free();
1.106 schwarze 928: free(conf.man);
1.145 schwarze 929: free(conf.style);
1.7 kristaps 930: }
931:
932: static void
1.70 schwarze 933: resp_show(const struct req *req, const char *file)
934: {
1.76 schwarze 935:
936: if ('.' == file[0] && '/' == file[1])
1.71 schwarze 937: file += 2;
1.70 schwarze 938:
939: if ('c' == *file)
1.129 schwarze 940: resp_catman(req, file);
1.70 schwarze 941: else
1.129 schwarze 942: resp_format(req, file);
1.70 schwarze 943: }
944:
945: static void
1.84 schwarze 946: pg_show(struct req *req, const char *fullpath)
1.1 kristaps 947: {
1.84 schwarze 948: char *manpath;
949: const char *file;
1.25 kristaps 950:
1.84 schwarze 951: if ((file = strchr(fullpath, '/')) == NULL) {
1.72 schwarze 952: pg_error_badrequest(
1.59 schwarze 953: "You did not specify a page to show.");
1.25 kristaps 954: return;
1.104 schwarze 955: }
1.84 schwarze 956: manpath = mandoc_strndup(fullpath, file - fullpath);
957: file++;
1.6 kristaps 958:
1.84 schwarze 959: if ( ! validate_manpath(req, manpath)) {
1.77 schwarze 960: pg_error_badrequest(
961: "You specified an invalid manpath.");
1.84 schwarze 962: free(manpath);
1.77 schwarze 963: return;
964: }
965:
1.24 kristaps 966: /*
1.58 schwarze 967: * Begin by chdir()ing into the manpath.
1.24 kristaps 968: * This way we can pick up the database files, which are
969: * relative to the manpath root.
970: */
971:
1.84 schwarze 972: if (chdir(manpath) == -1) {
1.128 schwarze 973: warn("chdir %s", manpath);
1.77 schwarze 974: pg_error_internal();
1.84 schwarze 975: free(manpath);
1.76 schwarze 976: return;
977: }
1.134 schwarze 978: free(manpath);
1.84 schwarze 979:
980: if ( ! validate_filename(file)) {
1.76 schwarze 981: pg_error_badrequest(
982: "You specified an invalid manual file.");
1.24 kristaps 983: return;
984: }
1.79 schwarze 985:
1.150 schwarze 986: resp_begin_html(200, NULL, file);
1.131 schwarze 987: resp_searchform(req, FOCUS_NONE);
1.84 schwarze 988: resp_show(req, file);
1.70 schwarze 989: resp_end_html();
1.6 kristaps 990: }
991:
992: static void
1.66 schwarze 993: pg_search(const struct req *req)
1.6 kristaps 994: {
1.52 schwarze 995: struct mansearch search;
996: struct manpaths paths;
997: struct manpage *res;
1.97 schwarze 998: char **argv;
999: char *query, *rp, *wp;
1.52 schwarze 1000: size_t ressz;
1.97 schwarze 1001: int argc;
1.6 kristaps 1002:
1003: /*
1.24 kristaps 1004: * Begin by chdir()ing into the root of the manpath.
1005: * This way we can pick up the database files, which are
1006: * relative to the manpath root.
1007: */
1008:
1.128 schwarze 1009: if (chdir(req->q.manpath) == -1) {
1010: warn("chdir %s", req->q.manpath);
1.77 schwarze 1011: pg_error_internal();
1.24 kristaps 1012: return;
1013: }
1014:
1.52 schwarze 1015: search.arch = req->q.arch;
1016: search.sec = req->q.sec;
1.94 schwarze 1017: search.outkey = "Nd";
1018: search.argmode = req->q.equal ? ARG_NAME : ARG_EXPR;
1.101 schwarze 1019: search.firstmatch = 1;
1.52 schwarze 1020:
1021: paths.sz = 1;
1022: paths.paths = mandoc_malloc(sizeof(char *));
1023: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 1024:
1025: /*
1.97 schwarze 1026: * Break apart at spaces with backslash-escaping.
1.6 kristaps 1027: */
1028:
1.97 schwarze 1029: argc = 0;
1030: argv = NULL;
1031: rp = query = mandoc_strdup(req->q.query);
1032: for (;;) {
1033: while (isspace((unsigned char)*rp))
1034: rp++;
1035: if (*rp == '\0')
1036: break;
1037: argv = mandoc_reallocarray(argv, argc + 1, sizeof(char *));
1038: argv[argc++] = wp = rp;
1039: for (;;) {
1040: if (isspace((unsigned char)*rp)) {
1041: *wp = '\0';
1042: rp++;
1043: break;
1044: }
1045: if (rp[0] == '\\' && rp[1] != '\0')
1046: rp++;
1047: if (wp != rp)
1048: *wp = *rp;
1049: if (*rp == '\0')
1050: break;
1051: wp++;
1052: rp++;
1053: }
1.6 kristaps 1054: }
1055:
1.149 schwarze 1056: res = NULL;
1057: ressz = 0;
1058: if (req->isquery && req->q.equal && argc == 1)
1059: pg_redirect(req, argv[0]);
1060: else if (mansearch(&search, &paths, argc, argv, &res, &ressz) == 0)
1.168 schwarze 1061: pg_noresult(req, 400, "Bad Request",
1062: "You entered an invalid query.");
1.149 schwarze 1063: else if (ressz == 0)
1.168 schwarze 1064: pg_noresult(req, 404, "Not Found", "No results found.");
1.59 schwarze 1065: else
1.72 schwarze 1066: pg_searchres(req, res, ressz);
1.6 kristaps 1067:
1.97 schwarze 1068: free(query);
1069: mansearch_free(res, ressz);
1.52 schwarze 1070: free(paths.paths[0]);
1071: free(paths.paths);
1.1 kristaps 1072: }
1073:
1074: int
1075: main(void)
1076: {
1.66 schwarze 1077: struct req req;
1.95 schwarze 1078: struct itimerval itimer;
1.66 schwarze 1079: const char *path;
1.83 schwarze 1080: const char *querystring;
1.1 kristaps 1081: int i;
1.148 schwarze 1082:
1083: #if HAVE_PLEDGE
1084: /*
1085: * The "rpath" pledge could be revoked after mparse_readfd()
1086: * if the file desciptor to "/footer.html" would be opened
1087: * up front, but it's probably not worth the complication
1088: * of the code it would cause: it would require scattering
1089: * pledge() calls in multiple low-level resp_*() functions.
1090: */
1091:
1092: if (pledge("stdio rpath", NULL) == -1) {
1093: warn("pledge");
1094: pg_error_internal();
1095: return EXIT_FAILURE;
1096: }
1097: #endif
1.95 schwarze 1098:
1099: /* Poor man's ReDoS mitigation. */
1100:
1.99 schwarze 1101: itimer.it_value.tv_sec = 2;
1.95 schwarze 1102: itimer.it_value.tv_usec = 0;
1.99 schwarze 1103: itimer.it_interval.tv_sec = 2;
1.95 schwarze 1104: itimer.it_interval.tv_usec = 0;
1105: if (setitimer(ITIMER_VIRTUAL, &itimer, NULL) == -1) {
1.128 schwarze 1106: warn("setitimer");
1.80 schwarze 1107: pg_error_internal();
1.109 schwarze 1108: return EXIT_FAILURE;
1.80 schwarze 1109: }
1110:
1.24 kristaps 1111: /*
1.67 schwarze 1112: * First we change directory into the MAN_DIR so that
1.24 kristaps 1113: * subsequent scanning for manpath directories is rooted
1114: * relative to the same position.
1115: */
1116:
1.128 schwarze 1117: if (chdir(MAN_DIR) == -1) {
1118: warn("MAN_DIR: %s", MAN_DIR);
1.72 schwarze 1119: pg_error_internal();
1.109 schwarze 1120: return EXIT_FAILURE;
1.104 schwarze 1121: }
1.24 kristaps 1122:
1123: memset(&req, 0, sizeof(struct req));
1.118 schwarze 1124: req.q.equal = 1;
1.129 schwarze 1125: parse_manpath_conf(&req);
1.1 kristaps 1126:
1.117 schwarze 1127: /* Parse the path info and the query string. */
1.1 kristaps 1128:
1.117 schwarze 1129: if ((path = getenv("PATH_INFO")) == NULL)
1130: path = "";
1131: else if (*path == '/')
1132: path++;
1133:
1.124 schwarze 1134: if (*path != '\0') {
1.129 schwarze 1135: parse_path_info(&req, path);
1.154 schwarze 1136: if (req.q.manpath == NULL || req.q.sec == NULL ||
1137: *req.q.query == '\0' || access(path, F_OK) == -1)
1.124 schwarze 1138: path = "";
1.117 schwarze 1139: } else if ((querystring = getenv("QUERY_STRING")) != NULL)
1.129 schwarze 1140: parse_query_string(&req, querystring);
1.77 schwarze 1141:
1.117 schwarze 1142: /* Validate parsed data and add defaults. */
1143:
1.102 schwarze 1144: if (req.q.manpath == NULL)
1145: req.q.manpath = mandoc_strdup(req.p[0]);
1146: else if ( ! validate_manpath(&req, req.q.manpath)) {
1.77 schwarze 1147: pg_error_badrequest(
1148: "You specified an invalid manpath.");
1.109 schwarze 1149: return EXIT_FAILURE;
1.77 schwarze 1150: }
1.1 kristaps 1151:
1.159 schwarze 1152: if (req.q.arch != NULL && validate_arch(req.q.arch) == 0) {
1.80 schwarze 1153: pg_error_badrequest(
1154: "You specified an invalid architecture.");
1.109 schwarze 1155: return EXIT_FAILURE;
1.80 schwarze 1156: }
1157:
1.66 schwarze 1158: /* Dispatch to the three different pages. */
1.1 kristaps 1159:
1.66 schwarze 1160: if ('\0' != *path)
1161: pg_show(&req, path);
1.85 schwarze 1162: else if (NULL != req.q.query)
1.66 schwarze 1163: pg_search(&req);
1164: else
1.72 schwarze 1165: pg_index(&req);
1.1 kristaps 1166:
1.83 schwarze 1167: free(req.q.manpath);
1168: free(req.q.arch);
1169: free(req.q.sec);
1.85 schwarze 1170: free(req.q.query);
1.52 schwarze 1171: for (i = 0; i < (int)req.psz; i++)
1172: free(req.p[i]);
1.24 kristaps 1173: free(req.p);
1.109 schwarze 1174: return EXIT_SUCCESS;
1.117 schwarze 1175: }
1176:
1177: /*
1.161 schwarze 1178: * Translate PATH_INFO to a query.
1.117 schwarze 1179: */
1180: static void
1.129 schwarze 1181: parse_path_info(struct req *req, const char *path)
1.117 schwarze 1182: {
1.161 schwarze 1183: const char *name, *sec, *end;
1.117 schwarze 1184:
1.121 schwarze 1185: req->isquery = 0;
1.117 schwarze 1186: req->q.equal = 1;
1.161 schwarze 1187: req->q.manpath = NULL;
1.135 schwarze 1188: req->q.arch = NULL;
1.117 schwarze 1189:
1190: /* Mandatory manual page name. */
1.161 schwarze 1191: if ((name = strrchr(path, '/')) == NULL)
1192: name = path;
1193: else
1194: name++;
1.117 schwarze 1195:
1196: /* Optional trailing section. */
1.161 schwarze 1197: sec = strrchr(name, '.');
1198: if (sec != NULL && isdigit((unsigned char)*++sec)) {
1199: req->q.query = mandoc_strndup(name, sec - name - 1);
1200: req->q.sec = mandoc_strdup(sec);
1201: } else {
1202: req->q.query = mandoc_strdup(name);
1203: req->q.sec = NULL;
1.117 schwarze 1204: }
1205:
1206: /* Handle the case of name[.section] only. */
1.161 schwarze 1207: if (name == path)
1.117 schwarze 1208: return;
1209:
1.135 schwarze 1210: /* Optional manpath. */
1.161 schwarze 1211: end = strchr(path, '/');
1212: req->q.manpath = mandoc_strndup(path, end - path);
1213: if (validate_manpath(req, req->q.manpath)) {
1214: path = end + 1;
1215: if (name == path)
1216: return;
1217: } else {
1218: free(req->q.manpath);
1.135 schwarze 1219: req->q.manpath = NULL;
1.161 schwarze 1220: }
1.117 schwarze 1221:
1.135 schwarze 1222: /* Optional section. */
1.165 schwarze 1223: if (strncmp(path, "man", 3) == 0 || strncmp(path, "cat", 3) == 0) {
1.161 schwarze 1224: path += 3;
1225: end = strchr(path, '/');
1.127 schwarze 1226: free(req->q.sec);
1.161 schwarze 1227: req->q.sec = mandoc_strndup(path, end - path);
1228: path = end + 1;
1229: if (name == path)
1230: return;
1.117 schwarze 1231: }
1.161 schwarze 1232:
1233: /* Optional architecture. */
1234: end = strchr(path, '/');
1235: if (end + 1 != name) {
1236: pg_error_badrequest(
1237: "You specified too many directory components.");
1238: exit(EXIT_FAILURE);
1.135 schwarze 1239: }
1.161 schwarze 1240: req->q.arch = mandoc_strndup(path, end - path);
1241: if (validate_arch(req->q.arch) == 0) {
1.135 schwarze 1242: pg_error_badrequest(
1243: "You specified an invalid directory component.");
1244: exit(EXIT_FAILURE);
1245: }
1.24 kristaps 1246: }
1247:
1248: /*
1249: * Scan for indexable paths.
1250: */
1251: static void
1.129 schwarze 1252: parse_manpath_conf(struct req *req)
1.24 kristaps 1253: {
1.54 schwarze 1254: FILE *fp;
1255: char *dp;
1256: size_t dpsz;
1.115 schwarze 1257: ssize_t len;
1.54 schwarze 1258:
1.128 schwarze 1259: if ((fp = fopen("manpath.conf", "r")) == NULL) {
1260: warn("%s/manpath.conf", MAN_DIR);
1.74 schwarze 1261: pg_error_internal();
1262: exit(EXIT_FAILURE);
1263: }
1.24 kristaps 1264:
1.115 schwarze 1265: dp = NULL;
1266: dpsz = 0;
1267:
1268: while ((len = getline(&dp, &dpsz, fp)) != -1) {
1269: if (dp[len - 1] == '\n')
1270: dp[--len] = '\0';
1.54 schwarze 1271: req->p = mandoc_realloc(req->p,
1272: (req->psz + 1) * sizeof(char *));
1.80 schwarze 1273: if ( ! validate_urifrag(dp)) {
1.128 schwarze 1274: warnx("%s/manpath.conf contains "
1275: "unsafe path \"%s\"", MAN_DIR, dp);
1.80 schwarze 1276: pg_error_internal();
1277: exit(EXIT_FAILURE);
1278: }
1.128 schwarze 1279: if (strchr(dp, '/') != NULL) {
1280: warnx("%s/manpath.conf contains "
1281: "path with slash \"%s\"", MAN_DIR, dp);
1.80 schwarze 1282: pg_error_internal();
1283: exit(EXIT_FAILURE);
1284: }
1285: req->p[req->psz++] = dp;
1.115 schwarze 1286: dp = NULL;
1287: dpsz = 0;
1.74 schwarze 1288: }
1.115 schwarze 1289: free(dp);
1.74 schwarze 1290:
1.128 schwarze 1291: if (req->p == NULL) {
1292: warnx("%s/manpath.conf is empty", MAN_DIR);
1.74 schwarze 1293: pg_error_internal();
1294: exit(EXIT_FAILURE);
1.24 kristaps 1295: }
1296: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to cgi.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc