Annotation of mandoc/cgi.c, Revision 1.179
1.179 ! schwarze 1: /* $Id: cgi.c,v 1.178 2022/07/05 14:04:25 schwarze Exp $ */
1.6 kristaps 2: /*
1.178 schwarze 3: * Copyright (c) 2014-2019, 2021, 2022 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 *);
1.178 schwarze 90: static int 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 *);
1.178 schwarze 93: static int resp_copy(const char *, 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:
1.178 schwarze 356: static int
357: resp_copy(const char *element, const char *filename)
1.114 schwarze 358: {
359: char buf[4096];
360: ssize_t sz;
361: int fd;
362:
1.178 schwarze 363: if ((fd = open(filename, O_RDONLY)) == -1)
364: return 0;
365:
366: if (element != NULL)
367: printf("<%s>\n", element);
368: fflush(stdout);
369: while ((sz = read(fd, buf, sizeof(buf))) > 0)
370: write(STDOUT_FILENO, buf, sz);
371: close(fd);
372: return 1;
1.114 schwarze 373: }
374:
1.178 schwarze 375: static int
1.150 schwarze 376: resp_begin_html(int code, const char *msg, const char *file)
1.6 kristaps 377: {
1.175 schwarze 378: const char *name, *sec, *cp;
379: int namesz, secsz;
1.6 kristaps 380:
381: resp_begin_http(code, msg);
382:
1.98 kristaps 383: printf("<!DOCTYPE html>\n"
1.126 schwarze 384: "<html>\n"
385: "<head>\n"
1.143 schwarze 386: " <meta charset=\"UTF-8\"/>\n"
1.157 schwarze 387: " <meta name=\"viewport\""
388: " content=\"width=device-width, initial-scale=1.0\">\n"
1.143 schwarze 389: " <link rel=\"stylesheet\" href=\"%s/mandoc.css\""
1.126 schwarze 390: " type=\"text/css\" media=\"all\">\n"
1.150 schwarze 391: " <title>",
392: CSS_DIR);
393: if (file != NULL) {
1.175 schwarze 394: cp = strrchr(file, '/');
395: name = cp == NULL ? file : cp + 1;
396: cp = strrchr(name, '.');
397: namesz = cp == NULL ? strlen(name) : cp - name;
398: sec = NULL;
399: if (cp != NULL && cp[1] != '0') {
400: sec = cp + 1;
401: secsz = strlen(sec);
402: } else if (name - file > 1) {
403: for (cp = name - 2; cp >= file; cp--) {
404: if (*cp < '1' || *cp > '9')
405: continue;
406: sec = cp;
407: secsz = name - cp - 1;
408: break;
409: }
410: }
411: printf("%.*s", namesz, name);
412: if (sec != NULL)
413: printf("(%.*s)", secsz, sec);
414: fputs(" - ", stdout);
1.150 schwarze 415: }
416: printf("%s</title>\n"
1.126 schwarze 417: "</head>\n"
1.142 schwarze 418: "<body>\n",
1.150 schwarze 419: CUSTOMIZE_TITLE);
1.114 schwarze 420:
1.178 schwarze 421: return resp_copy("header", MAN_DIR "/header.html");
1.6 kristaps 422: }
423:
424: static void
425: resp_end_html(void)
426: {
1.178 schwarze 427: if (resp_copy("footer", MAN_DIR "/footer.html"))
428: puts("</footer>");
1.114 schwarze 429:
1.126 schwarze 430: puts("</body>\n"
431: "</html>");
1.6 kristaps 432: }
433:
434: static void
1.131 schwarze 435: resp_searchform(const struct req *req, enum focus focus)
1.6 kristaps 436: {
1.27 kristaps 437: int i;
1.13 kristaps 438:
1.178 schwarze 439: printf("<form role=\"search\" action=\"/%s\" method=\"get\" "
1.171 schwarze 440: "autocomplete=\"off\" autocapitalize=\"none\">\n"
1.143 schwarze 441: " <fieldset>\n"
442: " <legend>Manual Page Search Parameters</legend>\n",
1.58 schwarze 443: scriptname);
1.68 schwarze 444:
445: /* Write query input box. */
446:
1.158 schwarze 447: printf(" <input type=\"search\" name=\"query\" value=\"");
1.131 schwarze 448: if (req->q.query != NULL)
1.85 schwarze 449: html_print(req->q.query);
1.131 schwarze 450: printf( "\" size=\"40\"");
451: if (focus == FOCUS_QUERY)
452: printf(" autofocus");
453: puts(">");
1.68 schwarze 454:
1.132 schwarze 455: /* Write submission buttons. */
1.68 schwarze 456:
1.143 schwarze 457: printf( " <button type=\"submit\" name=\"apropos\" value=\"0\">"
1.132 schwarze 458: "man</button>\n"
1.143 schwarze 459: " <button type=\"submit\" name=\"apropos\" value=\"1\">"
460: "apropos</button>\n"
461: " <br/>\n");
1.68 schwarze 462:
463: /* Write section selector. */
464:
1.179 ! schwarze 465: puts(" <select name=\"sec\" aria-label=\"Manual section\">");
1.68 schwarze 466: for (i = 0; i < sec_MAX; i++) {
1.143 schwarze 467: printf(" <option value=\"%s\"", sec_numbers[i]);
1.68 schwarze 468: if (NULL != req->q.sec &&
469: 0 == strcmp(sec_numbers[i], req->q.sec))
1.126 schwarze 470: printf(" selected=\"selected\"");
471: printf(">%s</option>\n", sec_names[i]);
1.68 schwarze 472: }
1.143 schwarze 473: puts(" </select>");
1.68 schwarze 474:
475: /* Write architecture selector. */
476:
1.177 schwarze 477: printf( " <select name=\"arch\" aria-label=\"CPU architecture\">\n"
1.143 schwarze 478: " <option value=\"default\"");
1.81 schwarze 479: if (NULL == req->q.arch)
1.126 schwarze 480: printf(" selected=\"selected\"");
481: puts(">All Architectures</option>");
1.68 schwarze 482: for (i = 0; i < arch_MAX; i++) {
1.158 schwarze 483: printf(" <option");
1.68 schwarze 484: if (NULL != req->q.arch &&
485: 0 == strcmp(arch_names[i], req->q.arch))
1.126 schwarze 486: printf(" selected=\"selected\"");
487: printf(">%s</option>\n", arch_names[i]);
1.68 schwarze 488: }
1.143 schwarze 489: puts(" </select>");
1.68 schwarze 490:
491: /* Write manpath selector. */
492:
1.27 kristaps 493: if (req->psz > 1) {
1.143 schwarze 494: puts(" <select name=\"manpath\">");
1.27 kristaps 495: for (i = 0; i < (int)req->psz; i++) {
1.158 schwarze 496: printf(" <option");
1.102 schwarze 497: if (strcmp(req->q.manpath, req->p[i]) == 0)
1.158 schwarze 498: printf(" selected=\"selected\"");
499: printf(">");
1.52 schwarze 500: html_print(req->p[i]);
1.126 schwarze 501: puts("</option>");
1.27 kristaps 502: }
1.143 schwarze 503: puts(" </select>");
1.27 kristaps 504: }
1.68 schwarze 505:
1.143 schwarze 506: puts(" </fieldset>\n"
1.178 schwarze 507: "</form>");
1.6 kristaps 508: }
509:
1.76 schwarze 510: static int
1.80 schwarze 511: validate_urifrag(const char *frag)
512: {
513:
514: while ('\0' != *frag) {
515: if ( ! (isalnum((unsigned char)*frag) ||
516: '-' == *frag || '.' == *frag ||
517: '/' == *frag || '_' == *frag))
1.109 schwarze 518: return 0;
1.80 schwarze 519: frag++;
520: }
1.109 schwarze 521: return 1;
1.80 schwarze 522: }
523:
524: static int
1.77 schwarze 525: validate_manpath(const struct req *req, const char* manpath)
526: {
527: size_t i;
528:
529: for (i = 0; i < req->psz; i++)
530: if ( ! strcmp(manpath, req->p[i]))
1.109 schwarze 531: return 1;
1.77 schwarze 532:
1.109 schwarze 533: return 0;
1.77 schwarze 534: }
535:
536: static int
1.159 schwarze 537: validate_arch(const char *arch)
538: {
539: int i;
540:
541: for (i = 0; i < arch_MAX; i++)
542: if (strcmp(arch, arch_names[i]) == 0)
543: return 1;
544:
545: return 0;
546: }
547:
548: static int
1.76 schwarze 549: validate_filename(const char *file)
550: {
551:
552: if ('.' == file[0] && '/' == file[1])
553: file += 2;
554:
1.109 schwarze 555: return ! (strstr(file, "../") || strstr(file, "/..") ||
556: (strncmp(file, "man", 3) && strncmp(file, "cat", 3)));
1.76 schwarze 557: }
558:
1.6 kristaps 559: static void
1.72 schwarze 560: pg_index(const struct req *req)
1.6 kristaps 561: {
1.178 schwarze 562: if (resp_begin_html(200, NULL, NULL) == 0)
563: puts("<header>");
1.131 schwarze 564: resp_searchform(req, FOCUS_QUERY);
1.178 schwarze 565: printf("</header>\n"
566: "<main>\n"
1.179 ! schwarze 567: "<p role=\"doc-notice\" aria-label=\"Usage\">\n"
1.86 schwarze 568: "This web interface is documented in the\n"
1.177 schwarze 569: "<a class=\"Xr\" href=\"/%s%sman.cgi.8\""
570: " aria-label=\"man dot CGI, section 8\">man.cgi(8)</a>\n"
1.86 schwarze 571: "manual, and the\n"
1.177 schwarze 572: "<a class=\"Xr\" href=\"/%s%sapropos.1\""
573: " aria-label=\"apropos, section 1\">apropos(1)</a>\n"
1.69 schwarze 574: "manual explains the query syntax.\n"
1.177 schwarze 575: "</p>\n"
576: "</main>\n",
1.119 schwarze 577: scriptname, *scriptname == '\0' ? "" : "/",
578: scriptname, *scriptname == '\0' ? "" : "/");
1.6 kristaps 579: resp_end_html();
580: }
581:
582: static void
1.168 schwarze 583: pg_noresult(const struct req *req, int code, const char *http_msg,
584: const char *user_msg)
1.59 schwarze 585: {
1.178 schwarze 586: if (resp_begin_html(code, http_msg, NULL) == 0)
587: puts("<header>");
1.131 schwarze 588: resp_searchform(req, FOCUS_QUERY);
1.178 schwarze 589: puts("</header>");
1.177 schwarze 590: puts("<main>");
1.179 ! schwarze 591: puts("<p role=\"doc-notice\" aria-label=\"No result\">");
1.168 schwarze 592: puts(user_msg);
1.126 schwarze 593: puts("</p>");
1.177 schwarze 594: puts("</main>");
1.59 schwarze 595: resp_end_html();
596: }
597:
598: static void
1.72 schwarze 599: pg_error_badrequest(const char *msg)
1.9 kristaps 600: {
1.178 schwarze 601: if (resp_begin_html(400, "Bad Request", NULL))
602: puts("</header>");
1.177 schwarze 603: puts("<main>\n"
604: "<h1>Bad Request</h1>\n"
605: "<p role=\"doc-notice\" aria-label=\"Bad Request\">");
1.59 schwarze 606: puts(msg);
607: printf("Try again from the\n"
1.126 schwarze 608: "<a href=\"/%s\">main page</a>.\n"
1.177 schwarze 609: "</p>\n"
1.178 schwarze 610: "</main>\n", scriptname);
1.9 kristaps 611: resp_end_html();
612: }
613:
614: static void
1.72 schwarze 615: pg_error_internal(void)
1.7 kristaps 616: {
1.178 schwarze 617: if (resp_begin_html(500, "Internal Server Error", NULL))
618: puts("</header>");
1.177 schwarze 619: puts("<main><p role=\"doc-notice\">Internal Server Error</p></main>");
1.7 kristaps 620: resp_end_html();
621: }
622:
623: static void
1.149 schwarze 624: pg_redirect(const struct req *req, const char *name)
625: {
1.153 schwarze 626: printf("Status: 303 See Other\r\n"
627: "Location: /");
1.149 schwarze 628: if (*scriptname != '\0')
629: printf("%s/", scriptname);
630: if (strcmp(req->q.manpath, req->p[0]))
631: printf("%s/", req->q.manpath);
632: if (req->q.arch != NULL)
633: printf("%s/", req->q.arch);
1.159 schwarze 634: http_encode(name);
635: if (req->q.sec != NULL) {
636: putchar('.');
637: http_encode(req->q.sec);
638: }
1.149 schwarze 639: printf("\r\nContent-Type: text/html; charset=utf-8\r\n\r\n");
640: }
641:
642: static void
1.72 schwarze 643: pg_searchres(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 644: {
1.81 schwarze 645: char *arch, *archend;
1.120 schwarze 646: const char *sec;
647: size_t i, iuse;
1.81 schwarze 648: int archprio, archpriouse;
1.70 schwarze 649: int prio, priouse;
1.178 schwarze 650: int have_header;
1.19 kristaps 651:
1.76 schwarze 652: for (i = 0; i < sz; i++) {
653: if (validate_filename(r[i].file))
654: continue;
1.128 schwarze 655: warnx("invalid filename %s in %s database",
1.76 schwarze 656: r[i].file, req->q.manpath);
657: pg_error_internal();
658: return;
659: }
660:
1.121 schwarze 661: if (req->isquery && sz == 1) {
1.6 kristaps 662: /*
663: * If we have just one result, then jump there now
664: * without any delay.
665: */
1.153 schwarze 666: printf("Status: 303 See Other\r\n"
667: "Location: /");
668: if (*scriptname != '\0')
669: printf("%s/", scriptname);
670: if (strcmp(req->q.manpath, req->p[0]))
671: printf("%s/", req->q.manpath);
672: printf("%s\r\n"
673: "Content-Type: text/html; charset=utf-8\r\n\r\n",
674: r[0].file);
1.6 kristaps 675: return;
676: }
677:
1.70 schwarze 678: /*
679: * In man(1) mode, show one of the pages
680: * even if more than one is found.
681: */
682:
1.150 schwarze 683: iuse = 0;
1.123 schwarze 684: if (req->q.equal || sz == 1) {
1.120 schwarze 685: priouse = 20;
1.81 schwarze 686: archpriouse = 3;
1.70 schwarze 687: for (i = 0; i < sz; i++) {
1.120 schwarze 688: sec = r[i].file;
689: sec += strcspn(sec, "123456789");
690: if (sec[0] == '\0')
1.70 schwarze 691: continue;
1.120 schwarze 692: prio = sec_prios[sec[0] - '1'];
693: if (sec[1] != '/')
694: prio += 10;
695: if (req->q.arch == NULL) {
1.81 schwarze 696: archprio =
1.120 schwarze 697: ((arch = strchr(sec + 1, '/'))
698: == NULL) ? 3 :
699: ((archend = strchr(arch + 1, '/'))
700: == NULL) ? 0 :
1.81 schwarze 701: strncmp(arch, "amd64/",
702: archend - arch) ? 2 : 1;
703: if (archprio < archpriouse) {
704: archpriouse = archprio;
705: priouse = prio;
706: iuse = i;
707: continue;
708: }
709: if (archprio > archpriouse)
710: continue;
711: }
1.70 schwarze 712: if (prio >= priouse)
713: continue;
714: priouse = prio;
715: iuse = i;
716: }
1.178 schwarze 717: have_header = resp_begin_html(200, NULL, r[iuse].file);
1.150 schwarze 718: } else
1.178 schwarze 719: have_header = resp_begin_html(200, NULL, NULL);
1.150 schwarze 720:
1.178 schwarze 721: if (have_header == 0)
722: puts("<header>");
1.150 schwarze 723: resp_searchform(req,
724: req->q.equal || sz == 1 ? FOCUS_NONE : FOCUS_QUERY);
1.178 schwarze 725: puts("</header>");
1.150 schwarze 726:
727: if (sz > 1) {
1.177 schwarze 728: puts("<nav>");
1.150 schwarze 729: puts("<table class=\"results\">");
730: for (i = 0; i < sz; i++) {
731: printf(" <tr>\n"
732: " <td>"
1.151 schwarze 733: "<a class=\"Xr\" href=\"/");
734: if (*scriptname != '\0')
735: printf("%s/", scriptname);
736: if (strcmp(req->q.manpath, req->p[0]))
737: printf("%s/", req->q.manpath);
738: printf("%s\">", r[i].file);
1.150 schwarze 739: html_print(r[i].names);
740: printf("</a></td>\n"
741: " <td><span class=\"Nd\">");
742: html_print(r[i].output);
743: puts("</span></td>\n"
744: " </tr>");
745: }
746: puts("</table>");
1.177 schwarze 747: puts("</nav>");
1.150 schwarze 748: }
749:
750: if (req->q.equal || sz == 1) {
751: puts("<hr>");
1.70 schwarze 752: resp_show(req, r[iuse].file);
753: }
754:
1.6 kristaps 755: resp_end_html();
756: }
757:
1.1 kristaps 758: static void
1.129 schwarze 759: resp_catman(const struct req *req, const char *file)
1.9 kristaps 760: {
1.10 kristaps 761: FILE *f;
1.115 schwarze 762: char *p;
763: size_t sz;
764: ssize_t len;
1.10 kristaps 765: int i;
766: int italic, bold;
1.9 kristaps 767:
1.115 schwarze 768: if ((f = fopen(file, "r")) == NULL) {
1.177 schwarze 769: puts("<p role=\"doc-notice\">\n"
770: " You specified an invalid manual file.\n"
771: "</p>");
1.9 kristaps 772: return;
773: }
774:
1.126 schwarze 775: puts("<div class=\"catman\">\n"
776: "<pre>");
1.10 kristaps 777:
1.115 schwarze 778: p = NULL;
779: sz = 0;
780:
781: while ((len = getline(&p, &sz, f)) != -1) {
1.10 kristaps 782: bold = italic = 0;
1.115 schwarze 783: for (i = 0; i < len - 1; i++) {
1.104 schwarze 784: /*
1.10 kristaps 785: * This means that the catpage is out of state.
786: * Ignore it and keep going (although the
787: * catpage is bogus).
788: */
789:
790: if ('\b' == p[i] || '\n' == p[i])
791: continue;
792:
793: /*
794: * Print a regular character.
795: * Close out any bold/italic scopes.
796: * If we're in back-space mode, make sure we'll
797: * have something to enter when we backspace.
798: */
799:
800: if ('\b' != p[i + 1]) {
801: if (italic)
1.126 schwarze 802: printf("</i>");
1.10 kristaps 803: if (bold)
1.126 schwarze 804: printf("</b>");
1.10 kristaps 805: italic = bold = 0;
806: html_putchar(p[i]);
807: continue;
1.115 schwarze 808: } else if (i + 2 >= len)
1.10 kristaps 809: continue;
810:
811: /* Italic mode. */
812:
813: if ('_' == p[i]) {
814: if (bold)
1.126 schwarze 815: printf("</b>");
1.10 kristaps 816: if ( ! italic)
1.126 schwarze 817: printf("<i>");
1.10 kristaps 818: bold = 0;
819: italic = 1;
820: i += 2;
821: html_putchar(p[i]);
822: continue;
823: }
824:
1.104 schwarze 825: /*
1.10 kristaps 826: * Handle funny behaviour troff-isms.
827: * These grok'd from the original man2html.c.
828: */
829:
830: if (('+' == p[i] && 'o' == p[i + 2]) ||
831: ('o' == p[i] && '+' == p[i + 2]) ||
832: ('|' == p[i] && '=' == p[i + 2]) ||
833: ('=' == p[i] && '|' == p[i + 2]) ||
834: ('*' == p[i] && '=' == p[i + 2]) ||
835: ('=' == p[i] && '*' == p[i + 2]) ||
836: ('*' == p[i] && '|' == p[i + 2]) ||
837: ('|' == p[i] && '*' == p[i + 2])) {
838: if (italic)
1.126 schwarze 839: printf("</i>");
1.10 kristaps 840: if (bold)
1.126 schwarze 841: printf("</b>");
1.10 kristaps 842: italic = bold = 0;
843: putchar('*');
844: i += 2;
845: continue;
846: } else if (('|' == p[i] && '-' == p[i + 2]) ||
847: ('-' == p[i] && '|' == p[i + 1]) ||
848: ('+' == p[i] && '-' == p[i + 1]) ||
849: ('-' == p[i] && '+' == p[i + 1]) ||
850: ('+' == p[i] && '|' == p[i + 1]) ||
851: ('|' == p[i] && '+' == p[i + 1])) {
852: if (italic)
1.126 schwarze 853: printf("</i>");
1.10 kristaps 854: if (bold)
1.126 schwarze 855: printf("</b>");
1.10 kristaps 856: italic = bold = 0;
857: putchar('+');
858: i += 2;
859: continue;
860: }
861:
862: /* Bold mode. */
1.104 schwarze 863:
1.10 kristaps 864: if (italic)
1.126 schwarze 865: printf("</i>");
1.10 kristaps 866: if ( ! bold)
1.126 schwarze 867: printf("<b>");
1.10 kristaps 868: bold = 1;
869: italic = 0;
870: i += 2;
871: html_putchar(p[i]);
872: }
873:
1.104 schwarze 874: /*
1.10 kristaps 875: * Clean up the last character.
1.104 schwarze 876: * We can get to a newline; don't print that.
1.10 kristaps 877: */
1.9 kristaps 878:
1.10 kristaps 879: if (italic)
1.126 schwarze 880: printf("</i>");
1.10 kristaps 881: if (bold)
1.126 schwarze 882: printf("</b>");
1.9 kristaps 883:
1.115 schwarze 884: if (i == len - 1 && p[i] != '\n')
1.10 kristaps 885: html_putchar(p[i]);
1.9 kristaps 886:
1.10 kristaps 887: putchar('\n');
888: }
1.115 schwarze 889: free(p);
1.10 kristaps 890:
1.126 schwarze 891: puts("</pre>\n"
892: "</div>");
1.10 kristaps 893:
894: fclose(f);
1.9 kristaps 895: }
896:
897: static void
1.129 schwarze 898: resp_format(const struct req *req, const char *file)
1.7 kristaps 899: {
1.106 schwarze 900: struct manoutput conf;
1.8 kristaps 901: struct mparse *mp;
1.164 schwarze 902: struct roff_meta *meta;
1.8 kristaps 903: void *vp;
1.90 schwarze 904: int fd;
905: int usepath;
1.7 kristaps 906:
1.176 schwarze 907: if (-1 == (fd = open(file, O_RDONLY))) {
1.177 schwarze 908: puts("<p role=\"doc-notice\">\n"
909: " You specified an invalid manual file.\n"
910: "</p>");
1.7 kristaps 911: return;
912: }
913:
1.110 schwarze 914: mchars_alloc();
1.164 schwarze 915: mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1 |
916: MPARSE_VALIDATE, MANDOC_OS_OTHER, req->q.manpath);
1.103 schwarze 917: mparse_readfd(mp, fd, file);
1.8 kristaps 918: close(fd);
1.164 schwarze 919: meta = mparse_result(mp);
1.7 kristaps 920:
1.106 schwarze 921: memset(&conf, 0, sizeof(conf));
922: conf.fragment = 1;
1.145 schwarze 923: conf.style = mandoc_strdup(CSS_DIR "/mandoc.css");
1.90 schwarze 924: usepath = strcmp(req->q.manpath, req->p[0]);
1.152 schwarze 925: mandoc_asprintf(&conf.man, "/%s%s%s%s%%N.%%S",
926: scriptname, *scriptname == '\0' ? "" : "/",
1.122 schwarze 927: usepath ? req->q.manpath : "", usepath ? "/" : "");
1.10 kristaps 928:
1.110 schwarze 929: vp = html_alloc(&conf);
1.164 schwarze 930: if (meta->macroset == MACROSET_MDOC)
931: html_mdoc(vp, meta);
932: else
933: html_man(vp, meta);
1.32 kristaps 934:
1.8 kristaps 935: html_free(vp);
936: mparse_free(mp);
1.110 schwarze 937: mchars_free();
1.106 schwarze 938: free(conf.man);
1.145 schwarze 939: free(conf.style);
1.7 kristaps 940: }
941:
942: static void
1.70 schwarze 943: resp_show(const struct req *req, const char *file)
944: {
1.76 schwarze 945:
946: if ('.' == file[0] && '/' == file[1])
1.71 schwarze 947: file += 2;
1.70 schwarze 948:
949: if ('c' == *file)
1.129 schwarze 950: resp_catman(req, file);
1.70 schwarze 951: else
1.129 schwarze 952: resp_format(req, file);
1.70 schwarze 953: }
954:
955: static void
1.84 schwarze 956: pg_show(struct req *req, const char *fullpath)
1.1 kristaps 957: {
1.84 schwarze 958: char *manpath;
959: const char *file;
1.25 kristaps 960:
1.84 schwarze 961: if ((file = strchr(fullpath, '/')) == NULL) {
1.72 schwarze 962: pg_error_badrequest(
1.59 schwarze 963: "You did not specify a page to show.");
1.25 kristaps 964: return;
1.104 schwarze 965: }
1.84 schwarze 966: manpath = mandoc_strndup(fullpath, file - fullpath);
967: file++;
1.6 kristaps 968:
1.84 schwarze 969: if ( ! validate_manpath(req, manpath)) {
1.77 schwarze 970: pg_error_badrequest(
971: "You specified an invalid manpath.");
1.84 schwarze 972: free(manpath);
1.77 schwarze 973: return;
974: }
975:
1.24 kristaps 976: /*
1.58 schwarze 977: * Begin by chdir()ing into the manpath.
1.24 kristaps 978: * This way we can pick up the database files, which are
979: * relative to the manpath root.
980: */
981:
1.84 schwarze 982: if (chdir(manpath) == -1) {
1.128 schwarze 983: warn("chdir %s", manpath);
1.77 schwarze 984: pg_error_internal();
1.84 schwarze 985: free(manpath);
1.76 schwarze 986: return;
987: }
1.134 schwarze 988: free(manpath);
1.84 schwarze 989:
990: if ( ! validate_filename(file)) {
1.76 schwarze 991: pg_error_badrequest(
992: "You specified an invalid manual file.");
1.24 kristaps 993: return;
994: }
1.79 schwarze 995:
1.178 schwarze 996: if (resp_begin_html(200, NULL, file) == 0)
997: puts("<header>");
1.131 schwarze 998: resp_searchform(req, FOCUS_NONE);
1.178 schwarze 999: puts("</header>");
1.84 schwarze 1000: resp_show(req, file);
1.70 schwarze 1001: resp_end_html();
1.6 kristaps 1002: }
1003:
1004: static void
1.66 schwarze 1005: pg_search(const struct req *req)
1.6 kristaps 1006: {
1.52 schwarze 1007: struct mansearch search;
1008: struct manpaths paths;
1009: struct manpage *res;
1.97 schwarze 1010: char **argv;
1011: char *query, *rp, *wp;
1.52 schwarze 1012: size_t ressz;
1.97 schwarze 1013: int argc;
1.6 kristaps 1014:
1015: /*
1.24 kristaps 1016: * Begin by chdir()ing into the root of the manpath.
1017: * This way we can pick up the database files, which are
1018: * relative to the manpath root.
1019: */
1020:
1.128 schwarze 1021: if (chdir(req->q.manpath) == -1) {
1022: warn("chdir %s", req->q.manpath);
1.77 schwarze 1023: pg_error_internal();
1.24 kristaps 1024: return;
1025: }
1026:
1.52 schwarze 1027: search.arch = req->q.arch;
1028: search.sec = req->q.sec;
1.94 schwarze 1029: search.outkey = "Nd";
1030: search.argmode = req->q.equal ? ARG_NAME : ARG_EXPR;
1.101 schwarze 1031: search.firstmatch = 1;
1.52 schwarze 1032:
1033: paths.sz = 1;
1034: paths.paths = mandoc_malloc(sizeof(char *));
1035: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 1036:
1037: /*
1.97 schwarze 1038: * Break apart at spaces with backslash-escaping.
1.6 kristaps 1039: */
1040:
1.97 schwarze 1041: argc = 0;
1042: argv = NULL;
1043: rp = query = mandoc_strdup(req->q.query);
1044: for (;;) {
1045: while (isspace((unsigned char)*rp))
1046: rp++;
1047: if (*rp == '\0')
1048: break;
1049: argv = mandoc_reallocarray(argv, argc + 1, sizeof(char *));
1050: argv[argc++] = wp = rp;
1051: for (;;) {
1052: if (isspace((unsigned char)*rp)) {
1053: *wp = '\0';
1054: rp++;
1055: break;
1056: }
1057: if (rp[0] == '\\' && rp[1] != '\0')
1058: rp++;
1059: if (wp != rp)
1060: *wp = *rp;
1061: if (*rp == '\0')
1062: break;
1063: wp++;
1064: rp++;
1065: }
1.6 kristaps 1066: }
1067:
1.149 schwarze 1068: res = NULL;
1069: ressz = 0;
1070: if (req->isquery && req->q.equal && argc == 1)
1071: pg_redirect(req, argv[0]);
1072: else if (mansearch(&search, &paths, argc, argv, &res, &ressz) == 0)
1.168 schwarze 1073: pg_noresult(req, 400, "Bad Request",
1074: "You entered an invalid query.");
1.149 schwarze 1075: else if (ressz == 0)
1.168 schwarze 1076: pg_noresult(req, 404, "Not Found", "No results found.");
1.59 schwarze 1077: else
1.72 schwarze 1078: pg_searchres(req, res, ressz);
1.6 kristaps 1079:
1.97 schwarze 1080: free(query);
1081: mansearch_free(res, ressz);
1.52 schwarze 1082: free(paths.paths[0]);
1083: free(paths.paths);
1.1 kristaps 1084: }
1085:
1086: int
1087: main(void)
1088: {
1.66 schwarze 1089: struct req req;
1.95 schwarze 1090: struct itimerval itimer;
1.66 schwarze 1091: const char *path;
1.83 schwarze 1092: const char *querystring;
1.1 kristaps 1093: int i;
1.148 schwarze 1094:
1095: #if HAVE_PLEDGE
1096: /*
1097: * The "rpath" pledge could be revoked after mparse_readfd()
1098: * if the file desciptor to "/footer.html" would be opened
1099: * up front, but it's probably not worth the complication
1100: * of the code it would cause: it would require scattering
1101: * pledge() calls in multiple low-level resp_*() functions.
1102: */
1103:
1104: if (pledge("stdio rpath", NULL) == -1) {
1105: warn("pledge");
1106: pg_error_internal();
1107: return EXIT_FAILURE;
1108: }
1109: #endif
1.95 schwarze 1110:
1111: /* Poor man's ReDoS mitigation. */
1112:
1.99 schwarze 1113: itimer.it_value.tv_sec = 2;
1.95 schwarze 1114: itimer.it_value.tv_usec = 0;
1.99 schwarze 1115: itimer.it_interval.tv_sec = 2;
1.95 schwarze 1116: itimer.it_interval.tv_usec = 0;
1117: if (setitimer(ITIMER_VIRTUAL, &itimer, NULL) == -1) {
1.128 schwarze 1118: warn("setitimer");
1.80 schwarze 1119: pg_error_internal();
1.109 schwarze 1120: return EXIT_FAILURE;
1.80 schwarze 1121: }
1122:
1.24 kristaps 1123: /*
1.67 schwarze 1124: * First we change directory into the MAN_DIR so that
1.24 kristaps 1125: * subsequent scanning for manpath directories is rooted
1126: * relative to the same position.
1127: */
1128:
1.128 schwarze 1129: if (chdir(MAN_DIR) == -1) {
1130: warn("MAN_DIR: %s", MAN_DIR);
1.72 schwarze 1131: pg_error_internal();
1.109 schwarze 1132: return EXIT_FAILURE;
1.104 schwarze 1133: }
1.24 kristaps 1134:
1135: memset(&req, 0, sizeof(struct req));
1.118 schwarze 1136: req.q.equal = 1;
1.129 schwarze 1137: parse_manpath_conf(&req);
1.1 kristaps 1138:
1.117 schwarze 1139: /* Parse the path info and the query string. */
1.1 kristaps 1140:
1.117 schwarze 1141: if ((path = getenv("PATH_INFO")) == NULL)
1142: path = "";
1143: else if (*path == '/')
1144: path++;
1145:
1.124 schwarze 1146: if (*path != '\0') {
1.129 schwarze 1147: parse_path_info(&req, path);
1.154 schwarze 1148: if (req.q.manpath == NULL || req.q.sec == NULL ||
1149: *req.q.query == '\0' || access(path, F_OK) == -1)
1.124 schwarze 1150: path = "";
1.117 schwarze 1151: } else if ((querystring = getenv("QUERY_STRING")) != NULL)
1.129 schwarze 1152: parse_query_string(&req, querystring);
1.77 schwarze 1153:
1.117 schwarze 1154: /* Validate parsed data and add defaults. */
1155:
1.102 schwarze 1156: if (req.q.manpath == NULL)
1157: req.q.manpath = mandoc_strdup(req.p[0]);
1158: else if ( ! validate_manpath(&req, req.q.manpath)) {
1.77 schwarze 1159: pg_error_badrequest(
1160: "You specified an invalid manpath.");
1.109 schwarze 1161: return EXIT_FAILURE;
1.77 schwarze 1162: }
1.1 kristaps 1163:
1.159 schwarze 1164: if (req.q.arch != NULL && validate_arch(req.q.arch) == 0) {
1.80 schwarze 1165: pg_error_badrequest(
1166: "You specified an invalid architecture.");
1.109 schwarze 1167: return EXIT_FAILURE;
1.80 schwarze 1168: }
1169:
1.66 schwarze 1170: /* Dispatch to the three different pages. */
1.1 kristaps 1171:
1.66 schwarze 1172: if ('\0' != *path)
1173: pg_show(&req, path);
1.85 schwarze 1174: else if (NULL != req.q.query)
1.66 schwarze 1175: pg_search(&req);
1176: else
1.72 schwarze 1177: pg_index(&req);
1.1 kristaps 1178:
1.83 schwarze 1179: free(req.q.manpath);
1180: free(req.q.arch);
1181: free(req.q.sec);
1.85 schwarze 1182: free(req.q.query);
1.52 schwarze 1183: for (i = 0; i < (int)req.psz; i++)
1184: free(req.p[i]);
1.24 kristaps 1185: free(req.p);
1.109 schwarze 1186: return EXIT_SUCCESS;
1.117 schwarze 1187: }
1188:
1189: /*
1.161 schwarze 1190: * Translate PATH_INFO to a query.
1.117 schwarze 1191: */
1192: static void
1.129 schwarze 1193: parse_path_info(struct req *req, const char *path)
1.117 schwarze 1194: {
1.161 schwarze 1195: const char *name, *sec, *end;
1.117 schwarze 1196:
1.121 schwarze 1197: req->isquery = 0;
1.117 schwarze 1198: req->q.equal = 1;
1.161 schwarze 1199: req->q.manpath = NULL;
1.135 schwarze 1200: req->q.arch = NULL;
1.117 schwarze 1201:
1202: /* Mandatory manual page name. */
1.161 schwarze 1203: if ((name = strrchr(path, '/')) == NULL)
1204: name = path;
1205: else
1206: name++;
1.117 schwarze 1207:
1208: /* Optional trailing section. */
1.161 schwarze 1209: sec = strrchr(name, '.');
1210: if (sec != NULL && isdigit((unsigned char)*++sec)) {
1211: req->q.query = mandoc_strndup(name, sec - name - 1);
1212: req->q.sec = mandoc_strdup(sec);
1213: } else {
1214: req->q.query = mandoc_strdup(name);
1215: req->q.sec = NULL;
1.117 schwarze 1216: }
1217:
1218: /* Handle the case of name[.section] only. */
1.161 schwarze 1219: if (name == path)
1.117 schwarze 1220: return;
1221:
1.135 schwarze 1222: /* Optional manpath. */
1.161 schwarze 1223: end = strchr(path, '/');
1224: req->q.manpath = mandoc_strndup(path, end - path);
1225: if (validate_manpath(req, req->q.manpath)) {
1226: path = end + 1;
1227: if (name == path)
1228: return;
1229: } else {
1230: free(req->q.manpath);
1.135 schwarze 1231: req->q.manpath = NULL;
1.161 schwarze 1232: }
1.117 schwarze 1233:
1.135 schwarze 1234: /* Optional section. */
1.165 schwarze 1235: if (strncmp(path, "man", 3) == 0 || strncmp(path, "cat", 3) == 0) {
1.161 schwarze 1236: path += 3;
1237: end = strchr(path, '/');
1.127 schwarze 1238: free(req->q.sec);
1.161 schwarze 1239: req->q.sec = mandoc_strndup(path, end - path);
1240: path = end + 1;
1241: if (name == path)
1242: return;
1.117 schwarze 1243: }
1.161 schwarze 1244:
1245: /* Optional architecture. */
1246: end = strchr(path, '/');
1247: if (end + 1 != name) {
1248: pg_error_badrequest(
1249: "You specified too many directory components.");
1250: exit(EXIT_FAILURE);
1.135 schwarze 1251: }
1.161 schwarze 1252: req->q.arch = mandoc_strndup(path, end - path);
1253: if (validate_arch(req->q.arch) == 0) {
1.135 schwarze 1254: pg_error_badrequest(
1255: "You specified an invalid directory component.");
1256: exit(EXIT_FAILURE);
1257: }
1.24 kristaps 1258: }
1259:
1260: /*
1261: * Scan for indexable paths.
1262: */
1263: static void
1.129 schwarze 1264: parse_manpath_conf(struct req *req)
1.24 kristaps 1265: {
1.54 schwarze 1266: FILE *fp;
1267: char *dp;
1268: size_t dpsz;
1.115 schwarze 1269: ssize_t len;
1.54 schwarze 1270:
1.128 schwarze 1271: if ((fp = fopen("manpath.conf", "r")) == NULL) {
1272: warn("%s/manpath.conf", MAN_DIR);
1.74 schwarze 1273: pg_error_internal();
1274: exit(EXIT_FAILURE);
1275: }
1.24 kristaps 1276:
1.115 schwarze 1277: dp = NULL;
1278: dpsz = 0;
1279:
1280: while ((len = getline(&dp, &dpsz, fp)) != -1) {
1281: if (dp[len - 1] == '\n')
1282: dp[--len] = '\0';
1.54 schwarze 1283: req->p = mandoc_realloc(req->p,
1284: (req->psz + 1) * sizeof(char *));
1.80 schwarze 1285: if ( ! validate_urifrag(dp)) {
1.128 schwarze 1286: warnx("%s/manpath.conf contains "
1287: "unsafe path \"%s\"", MAN_DIR, dp);
1.80 schwarze 1288: pg_error_internal();
1289: exit(EXIT_FAILURE);
1290: }
1.128 schwarze 1291: if (strchr(dp, '/') != NULL) {
1292: warnx("%s/manpath.conf contains "
1293: "path with slash \"%s\"", MAN_DIR, dp);
1.80 schwarze 1294: pg_error_internal();
1295: exit(EXIT_FAILURE);
1296: }
1297: req->p[req->psz++] = dp;
1.115 schwarze 1298: dp = NULL;
1299: dpsz = 0;
1.74 schwarze 1300: }
1.115 schwarze 1301: free(dp);
1.74 schwarze 1302:
1.128 schwarze 1303: if (req->p == NULL) {
1304: warnx("%s/manpath.conf is empty", MAN_DIR);
1.74 schwarze 1305: pg_error_internal();
1306: exit(EXIT_FAILURE);
1.24 kristaps 1307: }
1308: }
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