Annotation of mandoc/cgi.c, Revision 1.71
1.71 ! schwarze 1: /* $Id: cgi.c,v 1.70 2014/07/13 12:31:23 schwarze Exp $ */
1.6 kristaps 2: /*
1.42 kristaps 3: * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.52 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@usta.de>
1.6 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
22: #include <ctype.h>
1.58 schwarze 23: #include <errno.h>
1.1 kristaps 24: #include <fcntl.h>
1.6 kristaps 25: #include <limits.h>
1.1 kristaps 26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
1.6 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.4 schwarze 31: #include "mandoc.h"
1.50 schwarze 32: #include "mandoc_aux.h"
1.8 kristaps 33: #include "main.h"
1.6 kristaps 34: #include "manpath.h"
1.52 schwarze 35: #include "mansearch.h"
1.67 schwarze 36: #include "cgi.h"
1.1 kristaps 37:
1.20 kristaps 38: /*
39: * A query as passed to the search function.
40: */
41: struct query {
1.58 schwarze 42: const char *manpath; /* desired manual directory */
1.20 kristaps 43: const char *arch; /* architecture */
44: const char *sec; /* manual section */
45: const char *expr; /* unparsed expression string */
1.65 schwarze 46: int equal; /* match whole names, not substrings */
1.20 kristaps 47: };
48:
1.1 kristaps 49: struct req {
1.58 schwarze 50: struct query q;
51: char **p; /* array of available manpaths */
52: size_t psz; /* number of available manpaths */
1.1 kristaps 53: };
54:
1.32 kristaps 55: static void catman(const struct req *, const char *);
1.15 kristaps 56: static int cmp(const void *, const void *);
1.32 kristaps 57: static void format(const struct req *, const char *);
1.6 kristaps 58: static void html_print(const char *);
1.36 kristaps 59: static void html_printquery(const struct req *);
1.10 kristaps 60: static void html_putchar(char);
1.24 kristaps 61: static int http_decode(char *);
1.26 kristaps 62: static void http_parse(struct req *, char *);
1.36 kristaps 63: static void http_print(const char *);
64: static void http_putchar(char);
65: static void http_printquery(const struct req *);
1.54 schwarze 66: static void pathgen(struct req *);
1.66 schwarze 67: static void pg_search(const struct req *);
68: static void pg_show(const struct req *, const char *);
1.6 kristaps 69: static void resp_begin_html(int, const char *);
70: static void resp_begin_http(int, const char *);
71: static void resp_end_html(void);
1.59 schwarze 72: static void resp_error_badrequest(const char *);
73: static void resp_error_internal(void);
1.6 kristaps 74: static void resp_index(const struct req *);
1.59 schwarze 75: static void resp_noresult(const struct req *,
76: const char *);
1.52 schwarze 77: static void resp_search(const struct req *,
78: struct manpage *, size_t);
1.6 kristaps 79: static void resp_searchform(const struct req *);
1.70 schwarze 80: static void resp_show(const struct req *, const char *);
1.6 kristaps 81:
1.58 schwarze 82: static const char *scriptname; /* CGI script name */
83: static const char *httphost; /* hostname used in the URIs */
1.1 kristaps 84:
1.70 schwarze 85: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.68 schwarze 86: static const char *const sec_numbers[] = {
87: "0", "1", "2", "3", "3p", "4", "5", "6", "7", "8", "9"
88: };
89: static const char *const sec_names[] = {
90: "All Sections",
91: "1 - General Commands",
92: "2 - System Calls",
93: "3 - Subroutines",
94: "3p - Perl Subroutines",
95: "4 - Special Files",
96: "5 - File Formats",
97: "6 - Games",
98: "7 - Macros and Conventions",
99: "8 - Maintenance Commands",
100: "9 - Kernel Interface"
101: };
102: static const int sec_MAX = sizeof(sec_names) / sizeof(char *);
103:
104: static const char *const arch_names[] = {
105: "amd64", "alpha", "armish", "armv7",
106: "aviion", "hppa", "hppa64", "i386",
107: "ia64", "landisk", "loongson", "luna88k",
108: "macppc", "mips64", "octeon", "sgi",
109: "socppc", "solbourne", "sparc", "sparc64",
110: "vax", "zaurus",
111: "amiga", "arc", "arm32", "atari",
112: "beagle", "cats", "hp300", "mac68k",
113: "mvme68k", "mvme88k", "mvmeppc", "palm",
114: "pc532", "pegasos", "pmax", "powerpc",
115: "sun3", "wgrisc", "x68k"
116: };
117: static const int arch_MAX = sizeof(arch_names) / sizeof(char *);
118:
1.6 kristaps 119: /*
1.20 kristaps 120: * Print a character, escaping HTML along the way.
121: * This will pass non-ASCII straight to output: be warned!
122: */
1.10 kristaps 123: static void
124: html_putchar(char c)
125: {
126:
127: switch (c) {
128: case ('"'):
129: printf(""e;");
130: break;
131: case ('&'):
132: printf("&");
133: break;
134: case ('>'):
135: printf(">");
136: break;
137: case ('<'):
138: printf("<");
139: break;
140: default:
141: putchar((unsigned char)c);
142: break;
143: }
144: }
1.57 schwarze 145:
1.36 kristaps 146: static void
147: http_printquery(const struct req *req)
148: {
149:
1.58 schwarze 150: if (NULL != req->q.manpath) {
1.53 schwarze 151: printf("&manpath=");
1.58 schwarze 152: http_print(req->q.manpath);
1.53 schwarze 153: }
154: if (NULL != req->q.sec) {
155: printf("&sec=");
156: http_print(req->q.sec);
157: }
158: if (NULL != req->q.arch) {
159: printf("&arch=");
160: http_print(req->q.arch);
161: }
162: if (NULL != req->q.expr) {
1.65 schwarze 163: printf("&query=");
164: http_print(req->q.expr);
1.53 schwarze 165: }
1.65 schwarze 166: if (0 == req->q.equal)
167: printf("&apropos=1");
1.36 kristaps 168: }
169:
170: static void
171: html_printquery(const struct req *req)
172: {
173:
1.58 schwarze 174: if (NULL != req->q.manpath) {
1.53 schwarze 175: printf("&manpath=");
1.58 schwarze 176: html_print(req->q.manpath);
1.53 schwarze 177: }
178: if (NULL != req->q.sec) {
179: printf("&sec=");
180: html_print(req->q.sec);
181: }
182: if (NULL != req->q.arch) {
183: printf("&arch=");
184: html_print(req->q.arch);
185: }
186: if (NULL != req->q.expr) {
1.65 schwarze 187: printf("&query=");
1.63 schwarze 188: html_print(req->q.expr);
1.53 schwarze 189: }
1.65 schwarze 190: if (0 == req->q.equal)
191: printf("&apropos=1");
1.36 kristaps 192: }
193:
194: static void
195: http_print(const char *p)
196: {
197:
198: if (NULL == p)
199: return;
200: while ('\0' != *p)
201: http_putchar(*p++);
202: }
1.10 kristaps 203:
1.6 kristaps 204: /*
1.20 kristaps 205: * Call through to html_putchar().
206: * Accepts NULL strings.
1.6 kristaps 207: */
1.1 kristaps 208: static void
1.6 kristaps 209: html_print(const char *p)
1.1 kristaps 210: {
1.6 kristaps 211:
212: if (NULL == p)
213: return;
1.1 kristaps 214: while ('\0' != *p)
1.10 kristaps 215: html_putchar(*p++);
1.1 kristaps 216: }
217:
218: /*
219: * Parse out key-value pairs from an HTTP request variable.
1.6 kristaps 220: * This can be either a cookie or a POST/GET string, although man.cgi
221: * uses only GET for simplicity.
1.1 kristaps 222: */
223: static void
1.26 kristaps 224: http_parse(struct req *req, char *p)
1.1 kristaps 225: {
1.52 schwarze 226: char *key, *val;
1.1 kristaps 227:
1.26 kristaps 228: memset(&req->q, 0, sizeof(struct query));
1.58 schwarze 229: req->q.manpath = req->p[0];
1.65 schwarze 230: req->q.equal = 1;
1.24 kristaps 231:
1.36 kristaps 232: while ('\0' != *p) {
1.1 kristaps 233: key = p;
234: val = NULL;
235:
1.36 kristaps 236: p += (int)strcspn(p, ";&");
237: if ('\0' != *p)
1.1 kristaps 238: *p++ = '\0';
1.36 kristaps 239: if (NULL != (val = strchr(key, '=')))
240: *val++ = '\0';
1.1 kristaps 241:
1.36 kristaps 242: if ('\0' == *key || NULL == val || '\0' == *val)
1.1 kristaps 243: continue;
244:
245: /* Just abort handling. */
246:
1.24 kristaps 247: if ( ! http_decode(key))
248: break;
1.36 kristaps 249: if (NULL != val && ! http_decode(val))
1.24 kristaps 250: break;
251:
1.65 schwarze 252: if (0 == strcmp(key, "query"))
1.26 kristaps 253: req->q.expr = val;
254: else if (0 == strcmp(key, "manpath"))
1.58 schwarze 255: req->q.manpath = val;
1.24 kristaps 256: else if (0 == strcmp(key, "apropos"))
1.65 schwarze 257: req->q.equal = !strcmp(val, "0");
258: else if (0 == strcmp(key, "sec") ||
259: 0 == strcmp(key, "sektion")) {
260: if (strcmp(val, "0"))
261: req->q.sec = val;
262: } else if (0 == strcmp(key, "arch")) {
263: if (strcmp(val, "default"))
264: req->q.arch = val;
265: }
1.24 kristaps 266: }
1.1 kristaps 267: }
268:
1.36 kristaps 269: static void
270: http_putchar(char c)
271: {
272:
273: if (isalnum((unsigned char)c)) {
274: putchar((unsigned char)c);
275: return;
276: } else if (' ' == c) {
277: putchar('+');
278: return;
279: }
280: printf("%%%.2x", c);
281: }
282:
1.1 kristaps 283: /*
1.6 kristaps 284: * HTTP-decode a string. The standard explanation is that this turns
285: * "%4e+foo" into "n foo" in the regular way. This is done in-place
286: * over the allocated string.
1.1 kristaps 287: */
288: static int
1.24 kristaps 289: http_decode(char *p)
1.1 kristaps 290: {
291: char hex[3];
1.63 schwarze 292: char *q;
1.1 kristaps 293: int c;
294:
295: hex[2] = '\0';
296:
1.63 schwarze 297: q = p;
298: for ( ; '\0' != *p; p++, q++) {
1.1 kristaps 299: if ('%' == *p) {
300: if ('\0' == (hex[0] = *(p + 1)))
301: return(0);
302: if ('\0' == (hex[1] = *(p + 2)))
303: return(0);
304: if (1 != sscanf(hex, "%x", &c))
305: return(0);
306: if ('\0' == c)
307: return(0);
308:
1.63 schwarze 309: *q = (char)c;
310: p += 2;
1.1 kristaps 311: } else
1.63 schwarze 312: *q = '+' == *p ? ' ' : *p;
1.1 kristaps 313: }
314:
1.63 schwarze 315: *q = '\0';
1.1 kristaps 316: return(1);
317: }
318:
1.6 kristaps 319: static void
320: resp_begin_http(int code, const char *msg)
321: {
322:
323: if (200 != code)
1.62 schwarze 324: printf("Status: %d %s\r\n", code, msg);
1.6 kristaps 325:
1.62 schwarze 326: printf("Content-Type: text/html; charset=utf-8\r\n"
327: "Cache-Control: no-cache\r\n"
328: "Pragma: no-cache\r\n"
329: "\r\n");
1.6 kristaps 330:
331: fflush(stdout);
332: }
333:
334: static void
335: resp_begin_html(int code, const char *msg)
336: {
337:
338: resp_begin_http(code, msg);
339:
1.29 kristaps 340: printf("<!DOCTYPE HTML PUBLIC "
341: " \"-//W3C//DTD HTML 4.01//EN\""
342: " \"http://www.w3.org/TR/html4/strict.dtd\">\n"
343: "<HTML>\n"
344: "<HEAD>\n"
345: "<META HTTP-EQUIV=\"Content-Type\""
346: " CONTENT=\"text/html; charset=utf-8\">\n"
1.32 kristaps 347: "<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
348: " TYPE=\"text/css\" media=\"all\">\n"
349: "<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
1.29 kristaps 350: " TYPE=\"text/css\" media=\"all\">\n"
1.67 schwarze 351: "<TITLE>%s</TITLE>\n"
1.29 kristaps 352: "</HEAD>\n"
353: "<BODY>\n"
1.58 schwarze 354: "<!-- Begin page content. //-->\n",
1.67 schwarze 355: CSS_DIR, CSS_DIR, CUSTOMIZE_TITLE);
1.6 kristaps 356: }
357:
358: static void
359: resp_end_html(void)
360: {
361:
1.20 kristaps 362: puts("</BODY>\n"
363: "</HTML>");
1.6 kristaps 364: }
365:
366: static void
367: resp_searchform(const struct req *req)
368: {
1.27 kristaps 369: int i;
1.13 kristaps 370:
1.67 schwarze 371: puts(CUSTOMIZE_BEGIN);
1.6 kristaps 372: puts("<!-- Begin search form. //-->");
1.32 kristaps 373: printf("<DIV ID=\"mancgi\">\n"
1.66 schwarze 374: "<FORM ACTION=\"%s\" METHOD=\"get\">\n"
1.29 kristaps 375: "<FIELDSET>\n"
1.68 schwarze 376: "<LEGEND>Manual Page Search Parameters</LEGEND>\n",
1.58 schwarze 377: scriptname);
1.68 schwarze 378:
379: /* Write query input box. */
380:
381: printf( "<TABLE><TR><TD>\n"
382: "<INPUT TYPE=\"text\" NAME=\"query\" VALUE=\"");
383: if (NULL != req->q.expr)
384: html_print(req->q.expr);
385: puts("\" SIZE=\"40\">");
386:
387: /* Write submission and reset buttons. */
388:
389: printf( "<INPUT TYPE=\"submit\" VALUE=\"Submit\">\n"
390: "<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n");
391:
392: /* Write show radio button */
393:
394: printf( "</TD><TD>\n"
395: "<INPUT TYPE=\"radio\" ");
1.65 schwarze 396: if (req->q.equal)
1.68 schwarze 397: printf("CHECKED ");
398: printf( "NAME=\"apropos\" ID=\"show\" VALUE=\"0\">\n"
399: "<LABEL FOR=\"show\">Show named manual page</LABEL>\n");
400:
401: /* Write section selector. */
402:
403: printf( "</TD></TR><TR><TD>\n"
404: "<SELECT NAME=\"sec\">");
405: for (i = 0; i < sec_MAX; i++) {
406: printf("<OPTION VALUE=\"%s\"", sec_numbers[i]);
407: if (NULL != req->q.sec &&
408: 0 == strcmp(sec_numbers[i], req->q.sec))
409: printf(" SELECTED");
410: printf(">%s</OPTION>\n", sec_names[i]);
411: }
412: puts("</SELECT>");
413:
414: /* Write architecture selector. */
415:
416: puts("<SELECT NAME=\"arch\">");
417: for (i = 0; i < arch_MAX; i++) {
418: printf("<OPTION VALUE=\"%s\"", arch_names[i]);
419: if (NULL != req->q.arch &&
420: 0 == strcmp(arch_names[i], req->q.arch))
421: printf(" SELECTED");
422: printf(">%s</OPTION>\n", arch_names[i]);
423: }
424: puts("</SELECT>");
425:
426: /* Write manpath selector. */
427:
1.27 kristaps 428: if (req->psz > 1) {
1.68 schwarze 429: puts("<SELECT NAME=\"manpath\">");
1.27 kristaps 430: for (i = 0; i < (int)req->psz; i++) {
1.52 schwarze 431: printf("<OPTION ");
1.58 schwarze 432: if (NULL == req->q.manpath ? 0 == i :
433: 0 == strcmp(req->q.manpath, req->p[i]))
1.68 schwarze 434: printf("SELECTED ");
1.52 schwarze 435: printf("VALUE=\"");
436: html_print(req->p[i]);
1.27 kristaps 437: printf("\">");
1.52 schwarze 438: html_print(req->p[i]);
1.27 kristaps 439: puts("</OPTION>");
440: }
441: puts("</SELECT>");
442: }
1.68 schwarze 443:
444: /* Write search radio button */
445:
446: printf( "</TD><TD>\n"
447: "<INPUT TYPE=\"radio\" ");
448: if (0 == req->q.equal)
449: printf("CHECKED ");
450: printf( "NAME=\"apropos\" ID=\"search\" VALUE=\"1\">\n"
451: "<LABEL FOR=\"search\">Search with apropos query</LABEL>\n");
452:
453: puts("</TD></TR></TABLE>\n"
1.12 kristaps 454: "</FIELDSET>\n"
1.32 kristaps 455: "</FORM>\n"
456: "</DIV>");
1.20 kristaps 457: puts("<!-- End search form. //-->");
1.6 kristaps 458: }
459:
460: static void
461: resp_index(const struct req *req)
462: {
463:
464: resp_begin_html(200, NULL);
465: resp_searchform(req);
1.64 schwarze 466: printf("<P>\n"
467: "This web interface is documented in the "
1.69 schwarze 468: "<A HREF=\"%s/mandoc/man8/man.cgi.8\">man.cgi</A> "
469: "manual, and the "
470: "<A HREF=\"%s/mandoc/man1/apropos.1\">apropos</A> "
471: "manual explains the query syntax.\n"
1.64 schwarze 472: "</P>\n",
473: scriptname, scriptname);
1.6 kristaps 474: resp_end_html();
475: }
476:
477: static void
1.59 schwarze 478: resp_noresult(const struct req *req, const char *msg)
479: {
480: resp_begin_html(200, NULL);
481: resp_searchform(req);
482: puts("<P>");
483: puts(msg);
484: puts("</P>");
485: resp_end_html();
486: }
487:
488: static void
489: resp_error_badrequest(const char *msg)
1.9 kristaps 490: {
491:
1.59 schwarze 492: resp_begin_html(400, "Bad Request");
493: puts("<H1>Bad Request</H1>\n"
494: "<P>\n");
495: puts(msg);
496: printf("Try again from the\n"
497: "<A HREF=\"%s\">main page</A>.\n"
1.58 schwarze 498: "</P>", scriptname);
1.9 kristaps 499: resp_end_html();
500: }
501:
502: static void
1.59 schwarze 503: resp_error_internal(void)
1.7 kristaps 504: {
505: resp_begin_html(500, "Internal Server Error");
1.58 schwarze 506: puts("<P>Internal Server Error</P>");
1.7 kristaps 507: resp_end_html();
508: }
509:
510: static void
1.52 schwarze 511: resp_search(const struct req *req, struct manpage *r, size_t sz)
1.1 kristaps 512: {
1.70 schwarze 513: size_t i, iuse, isec;
514: int prio, priouse;
515: char sec;
1.19 kristaps 516:
1.52 schwarze 517: if (1 == sz) {
1.6 kristaps 518: /*
519: * If we have just one result, then jump there now
520: * without any delay.
521: */
1.62 schwarze 522: printf("Status: 303 See Other\r\n");
1.66 schwarze 523: printf("Location: http://%s%s/%s/%s?",
1.58 schwarze 524: httphost, scriptname, req->q.manpath, r[0].file);
1.36 kristaps 525: http_printquery(req);
1.62 schwarze 526: printf("\r\n"
527: "Content-Type: text/html; charset=utf-8\r\n"
528: "\r\n");
1.6 kristaps 529: return;
530: }
531:
1.59 schwarze 532: qsort(r, sz, sizeof(struct manpage), cmp);
533:
1.12 kristaps 534: resp_begin_html(200, NULL);
1.19 kristaps 535: resp_searchform(req);
1.33 kristaps 536: puts("<DIV CLASS=\"results\">");
537: puts("<TABLE>");
1.1 kristaps 538:
1.41 kristaps 539: for (i = 0; i < sz; i++) {
1.20 kristaps 540: printf("<TR>\n"
541: "<TD CLASS=\"title\">\n"
1.66 schwarze 542: "<A HREF=\"%s/%s/%s?",
1.58 schwarze 543: scriptname, req->q.manpath, r[i].file);
1.36 kristaps 544: html_printquery(req);
545: printf("\">");
1.52 schwarze 546: html_print(r[i].names);
547: printf("</A>\n"
1.20 kristaps 548: "</TD>\n"
549: "<TD CLASS=\"desc\">");
1.52 schwarze 550: html_print(r[i].output);
1.20 kristaps 551: puts("</TD>\n"
552: "</TR>");
1.1 kristaps 553: }
1.16 kristaps 554:
1.33 kristaps 555: puts("</TABLE>\n"
556: "</DIV>");
1.70 schwarze 557:
558: /*
559: * In man(1) mode, show one of the pages
560: * even if more than one is found.
561: */
562:
563: if (req->q.equal) {
564: puts("<HR>");
565: iuse = 0;
566: priouse = 10;
567: for (i = 0; i < sz; i++) {
568: isec = strcspn(r[i].file, "123456789");
569: sec = r[i].file[isec];
570: if ('\0' == sec)
571: continue;
572: prio = sec_prios[sec - '1'];
573: if (prio >= priouse)
574: continue;
575: priouse = prio;
576: iuse = i;
577: }
578: resp_show(req, r[iuse].file);
579: }
580:
1.6 kristaps 581: resp_end_html();
582: }
583:
1.1 kristaps 584: static void
1.32 kristaps 585: catman(const struct req *req, const char *file)
1.9 kristaps 586: {
1.10 kristaps 587: FILE *f;
588: size_t len;
589: int i;
590: char *p;
591: int italic, bold;
1.9 kristaps 592:
1.10 kristaps 593: if (NULL == (f = fopen(file, "r"))) {
1.70 schwarze 594: puts("<P>You specified an invalid manual file.</P>");
1.9 kristaps 595: return;
596: }
597:
1.32 kristaps 598: puts("<DIV CLASS=\"catman\">\n"
599: "<PRE>");
1.10 kristaps 600:
601: while (NULL != (p = fgetln(f, &len))) {
602: bold = italic = 0;
603: for (i = 0; i < (int)len - 1; i++) {
604: /*
605: * This means that the catpage is out of state.
606: * Ignore it and keep going (although the
607: * catpage is bogus).
608: */
609:
610: if ('\b' == p[i] || '\n' == p[i])
611: continue;
612:
613: /*
614: * Print a regular character.
615: * Close out any bold/italic scopes.
616: * If we're in back-space mode, make sure we'll
617: * have something to enter when we backspace.
618: */
619:
620: if ('\b' != p[i + 1]) {
621: if (italic)
622: printf("</I>");
623: if (bold)
624: printf("</B>");
625: italic = bold = 0;
626: html_putchar(p[i]);
627: continue;
628: } else if (i + 2 >= (int)len)
629: continue;
630:
631: /* Italic mode. */
632:
633: if ('_' == p[i]) {
634: if (bold)
635: printf("</B>");
636: if ( ! italic)
637: printf("<I>");
638: bold = 0;
639: italic = 1;
640: i += 2;
641: html_putchar(p[i]);
642: continue;
643: }
644:
645: /*
646: * Handle funny behaviour troff-isms.
647: * These grok'd from the original man2html.c.
648: */
649:
650: if (('+' == p[i] && 'o' == p[i + 2]) ||
651: ('o' == p[i] && '+' == p[i + 2]) ||
652: ('|' == p[i] && '=' == p[i + 2]) ||
653: ('=' == p[i] && '|' == p[i + 2]) ||
654: ('*' == p[i] && '=' == p[i + 2]) ||
655: ('=' == p[i] && '*' == p[i + 2]) ||
656: ('*' == p[i] && '|' == p[i + 2]) ||
657: ('|' == p[i] && '*' == p[i + 2])) {
658: if (italic)
659: printf("</I>");
660: if (bold)
661: printf("</B>");
662: italic = bold = 0;
663: putchar('*');
664: i += 2;
665: continue;
666: } else if (('|' == p[i] && '-' == p[i + 2]) ||
667: ('-' == p[i] && '|' == p[i + 1]) ||
668: ('+' == p[i] && '-' == p[i + 1]) ||
669: ('-' == p[i] && '+' == p[i + 1]) ||
670: ('+' == p[i] && '|' == p[i + 1]) ||
671: ('|' == p[i] && '+' == p[i + 1])) {
672: if (italic)
673: printf("</I>");
674: if (bold)
675: printf("</B>");
676: italic = bold = 0;
677: putchar('+');
678: i += 2;
679: continue;
680: }
681:
682: /* Bold mode. */
683:
684: if (italic)
685: printf("</I>");
686: if ( ! bold)
687: printf("<B>");
688: bold = 1;
689: italic = 0;
690: i += 2;
691: html_putchar(p[i]);
692: }
693:
694: /*
695: * Clean up the last character.
696: * We can get to a newline; don't print that.
697: */
1.9 kristaps 698:
1.10 kristaps 699: if (italic)
700: printf("</I>");
701: if (bold)
702: printf("</B>");
1.9 kristaps 703:
1.10 kristaps 704: if (i == (int)len - 1 && '\n' != p[i])
705: html_putchar(p[i]);
1.9 kristaps 706:
1.10 kristaps 707: putchar('\n');
708: }
709:
710: puts("</PRE>\n"
1.70 schwarze 711: "</DIV>");
1.10 kristaps 712:
713: fclose(f);
1.9 kristaps 714: }
715:
716: static void
1.32 kristaps 717: format(const struct req *req, const char *file)
1.7 kristaps 718: {
1.8 kristaps 719: struct mparse *mp;
720: int fd;
721: struct mdoc *mdoc;
722: struct man *man;
723: void *vp;
724: enum mandoclevel rc;
1.45 schwarze 725: char opts[PATH_MAX + 128];
1.7 kristaps 726:
1.8 kristaps 727: if (-1 == (fd = open(file, O_RDONLY, 0))) {
1.70 schwarze 728: puts("<P>You specified an invalid manual file.</P>");
1.7 kristaps 729: return;
730: }
731:
1.56 schwarze 732: mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL,
1.58 schwarze 733: req->q.manpath);
1.8 kristaps 734: rc = mparse_readfd(mp, fd, file);
735: close(fd);
1.7 kristaps 736:
1.8 kristaps 737: if (rc >= MANDOCLEVEL_FATAL) {
1.59 schwarze 738: fprintf(stderr, "fatal mandoc error: %s/%s\n",
739: req->q.manpath, file);
740: resp_error_internal();
1.7 kristaps 741: return;
742: }
743:
1.52 schwarze 744: snprintf(opts, sizeof(opts),
1.66 schwarze 745: "fragment,man=%s?query=%%N&sec=%%S",
1.58 schwarze 746: scriptname);
1.10 kristaps 747:
1.49 schwarze 748: mparse_result(mp, &mdoc, &man, NULL);
1.32 kristaps 749: if (NULL == man && NULL == mdoc) {
1.59 schwarze 750: fprintf(stderr, "fatal mandoc error: %s/%s\n",
751: req->q.manpath, file);
752: resp_error_internal();
1.32 kristaps 753: mparse_free(mp);
754: return;
755: }
756:
1.10 kristaps 757: vp = html_alloc(opts);
1.7 kristaps 758:
1.32 kristaps 759: if (NULL != mdoc)
1.8 kristaps 760: html_mdoc(vp, mdoc);
1.32 kristaps 761: else
1.8 kristaps 762: html_man(vp, man);
1.32 kristaps 763:
1.8 kristaps 764: html_free(vp);
765: mparse_free(mp);
1.7 kristaps 766: }
767:
768: static void
1.70 schwarze 769: resp_show(const struct req *req, const char *file)
770: {
1.71 ! schwarze 771: if ('.' == file[0] || '/' == file[1])
! 772: file += 2;
1.70 schwarze 773:
774: if ('c' == *file)
775: catman(req, file);
776: else
777: format(req, file);
778: }
779:
780: static void
1.66 schwarze 781: pg_show(const struct req *req, const char *path)
1.1 kristaps 782: {
1.6 kristaps 783: char *sub;
1.25 kristaps 784:
785: if (NULL == path || NULL == (sub = strchr(path, '/'))) {
1.59 schwarze 786: resp_error_badrequest(
787: "You did not specify a page to show.");
1.25 kristaps 788: return;
789: }
790: *sub++ = '\0';
1.6 kristaps 791:
1.24 kristaps 792: /*
1.58 schwarze 793: * Begin by chdir()ing into the manpath.
1.24 kristaps 794: * This way we can pick up the database files, which are
795: * relative to the manpath root.
796: */
797:
1.52 schwarze 798: if (-1 == chdir(path)) {
1.59 schwarze 799: resp_error_badrequest(
800: "You specified an invalid manpath.");
1.24 kristaps 801: return;
802: }
803:
1.70 schwarze 804: resp_begin_html(200, NULL);
805: resp_searchform(req);
806: resp_show(req, sub);
807: resp_end_html();
1.6 kristaps 808: }
809:
810: static void
1.66 schwarze 811: pg_search(const struct req *req)
1.6 kristaps 812: {
1.52 schwarze 813: struct mansearch search;
814: struct manpaths paths;
815: struct manpage *res;
816: char **cp;
817: const char *ep, *start;
818: size_t ressz;
819: int i, sz;
1.6 kristaps 820:
821: /*
1.24 kristaps 822: * Begin by chdir()ing into the root of the manpath.
823: * This way we can pick up the database files, which are
824: * relative to the manpath root.
825: */
826:
1.58 schwarze 827: if (-1 == (chdir(req->q.manpath))) {
1.59 schwarze 828: resp_error_badrequest(
829: "You specified an invalid manpath.");
1.24 kristaps 830: return;
831: }
832:
1.52 schwarze 833: search.arch = req->q.arch;
834: search.sec = req->q.sec;
1.65 schwarze 835: search.deftype = req->q.equal ? TYPE_Nm : (TYPE_Nm | TYPE_Nd);
836: search.flags = req->q.equal ? MANSEARCH_MAN : 0;
1.52 schwarze 837:
838: paths.sz = 1;
839: paths.paths = mandoc_malloc(sizeof(char *));
840: paths.paths[0] = mandoc_strdup(".");
1.24 kristaps 841:
842: /*
843: * Poor man's tokenisation: just break apart by spaces.
1.6 kristaps 844: * Yes, this is half-ass. But it works for now.
845: */
846:
1.52 schwarze 847: ep = req->q.expr;
1.6 kristaps 848: while (ep && isspace((unsigned char)*ep))
849: ep++;
850:
1.52 schwarze 851: sz = 0;
852: cp = NULL;
1.6 kristaps 853: while (ep && '\0' != *ep) {
1.51 schwarze 854: cp = mandoc_reallocarray(cp, sz + 1, sizeof(char *));
1.6 kristaps 855: start = ep;
856: while ('\0' != *ep && ! isspace((unsigned char)*ep))
857: ep++;
858: cp[sz] = mandoc_malloc((ep - start) + 1);
859: memcpy(cp[sz], start, ep - start);
860: cp[sz++][ep - start] = '\0';
861: while (isspace((unsigned char)*ep))
862: ep++;
863: }
864:
1.59 schwarze 865: if (0 == mansearch(&search, &paths, sz, cp, "Nd", &res, &ressz))
866: resp_noresult(req, "You entered an invalid query.");
867: else if (0 == ressz)
868: resp_noresult(req, "No results found.");
869: else
1.52 schwarze 870: resp_search(req, res, ressz);
1.6 kristaps 871:
872: for (i = 0; i < sz; i++)
873: free(cp[i]);
1.52 schwarze 874: free(cp);
875:
876: for (i = 0; i < (int)ressz; i++) {
877: free(res[i].file);
878: free(res[i].names);
879: free(res[i].output);
880: }
881: free(res);
1.6 kristaps 882:
1.52 schwarze 883: free(paths.paths[0]);
884: free(paths.paths);
1.1 kristaps 885: }
886:
887: int
888: main(void)
889: {
1.66 schwarze 890: struct req req;
891: const char *path;
892: char *querystring;
1.1 kristaps 893: int i;
1.6 kristaps 894:
1.24 kristaps 895: /* Scan our run-time environment. */
1.6 kristaps 896:
1.58 schwarze 897: if (NULL == (scriptname = getenv("SCRIPT_NAME")))
898: scriptname = "";
1.6 kristaps 899:
1.58 schwarze 900: if (NULL == (httphost = getenv("HTTP_HOST")))
901: httphost = "localhost";
1.24 kristaps 902:
903: /*
1.67 schwarze 904: * First we change directory into the MAN_DIR so that
1.24 kristaps 905: * subsequent scanning for manpath directories is rooted
906: * relative to the same position.
907: */
908:
1.67 schwarze 909: if (-1 == chdir(MAN_DIR)) {
1.58 schwarze 910: fprintf(stderr, "MAN_DIR: %s: %s\n",
1.67 schwarze 911: MAN_DIR, strerror(errno));
1.59 schwarze 912: resp_error_internal();
1.24 kristaps 913: return(EXIT_FAILURE);
914: }
915:
916: memset(&req, 0, sizeof(struct req));
1.54 schwarze 917: pathgen(&req);
1.1 kristaps 918:
1.24 kristaps 919: /* Next parse out the query string. */
1.1 kristaps 920:
1.58 schwarze 921: if (NULL != (querystring = getenv("QUERY_STRING")))
922: http_parse(&req, querystring);
1.1 kristaps 923:
1.66 schwarze 924: /* Dispatch to the three different pages. */
1.1 kristaps 925:
1.66 schwarze 926: path = getenv("PATH_INFO");
927: if (NULL == path)
928: path = "";
929: else if ('/' == *path)
930: path++;
931:
932: if ('\0' != *path)
933: pg_show(&req, path);
934: else if (NULL != req.q.expr)
935: pg_search(&req);
936: else
937: resp_index(&req);
1.1 kristaps 938:
1.52 schwarze 939: for (i = 0; i < (int)req.psz; i++)
940: free(req.p[i]);
1.24 kristaps 941: free(req.p);
1.1 kristaps 942: return(EXIT_SUCCESS);
943: }
1.15 kristaps 944:
945: static int
946: cmp(const void *p1, const void *p2)
947: {
948:
1.52 schwarze 949: return(strcasecmp(((const struct manpage *)p1)->names,
950: ((const struct manpage *)p2)->names));
1.24 kristaps 951: }
952:
953: /*
954: * Scan for indexable paths.
955: */
956: static void
1.54 schwarze 957: pathgen(struct req *req)
1.24 kristaps 958: {
1.54 schwarze 959: FILE *fp;
960: char *dp;
961: size_t dpsz;
962:
963: if (NULL == (fp = fopen("manpath.conf", "r")))
964: return;
1.24 kristaps 965:
1.54 schwarze 966: while (NULL != (dp = fgetln(fp, &dpsz))) {
1.55 schwarze 967: if ('\n' == dp[dpsz - 1])
968: dpsz--;
1.54 schwarze 969: req->p = mandoc_realloc(req->p,
970: (req->psz + 1) * sizeof(char *));
971: req->p[req->psz++] = mandoc_strndup(dp, dpsz);
1.24 kristaps 972: }
973: }
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