1210 lines
25 KiB
C
1210 lines
25 KiB
C
/* $Vendor-Id: cgi.c,v 1.39 2011/12/25 17:49:52 kristaps Exp $ */
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/*
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* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/param.h>
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#include <sys/wait.h>
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "apropos_db.h"
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#include "mandoc.h"
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#include "mdoc.h"
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#include "man.h"
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#include "main.h"
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#include "manpath.h"
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#include "mandocdb.h"
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#ifdef __linux__
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# include <db_185.h>
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#else
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# include <db.h>
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#endif
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enum page {
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PAGE_INDEX,
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PAGE_SEARCH,
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PAGE_SHOW,
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PAGE__MAX
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};
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struct paths {
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char *name;
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char *path;
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};
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/*
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* A query as passed to the search function.
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*/
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struct query {
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const char *arch; /* architecture */
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const char *sec; /* manual section */
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const char *expr; /* unparsed expression string */
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int manroot; /* manroot index (or -1)*/
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int whatis; /* whether whatis mode */
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int legacy; /* whether legacy mode */
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};
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struct req {
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struct query q;
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struct paths *p;
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size_t psz;
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enum page page;
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};
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static int atou(const char *, unsigned *);
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static void catman(const struct req *, const char *);
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static int cmp(const void *, const void *);
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static void format(const struct req *, const char *);
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static void html_print(const char *);
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static void html_printquery(const struct req *);
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static void html_putchar(char);
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static int http_decode(char *);
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static void http_parse(struct req *, char *);
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static void http_print(const char *);
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static void http_putchar(char);
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static void http_printquery(const struct req *);
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static int pathstop(DIR *);
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static void pathgen(DIR *, char *, struct req *);
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static void pg_index(const struct req *, char *);
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static void pg_search(const struct req *, char *);
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static void pg_show(const struct req *, char *);
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static void resp_bad(void);
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static void resp_baddb(void);
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static void resp_error400(void);
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static void resp_error404(const char *);
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static void resp_begin_html(int, const char *);
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static void resp_begin_http(int, const char *);
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static void resp_end_html(void);
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static void resp_index(const struct req *);
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static void resp_search(struct res *, size_t, void *);
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static void resp_searchform(const struct req *);
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static const char *progname; /* cgi script name */
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static const char *cache; /* cache directory */
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static const char *css; /* css directory */
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static const char *host; /* hostname */
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static const char * const pages[PAGE__MAX] = {
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"index", /* PAGE_INDEX */
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"search", /* PAGE_SEARCH */
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"show", /* PAGE_SHOW */
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};
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/*
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* This is just OpenBSD's strtol(3) suggestion.
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* I use it instead of strtonum(3) for portability's sake.
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*/
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static int
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atou(const char *buf, unsigned *v)
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{
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char *ep;
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long lval;
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errno = 0;
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lval = strtol(buf, &ep, 10);
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if (buf[0] == '\0' || *ep != '\0')
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return(0);
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if ((errno == ERANGE && (lval == LONG_MAX ||
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lval == LONG_MIN)) ||
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(lval > INT_MAX || lval < 0))
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return(0);
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*v = (unsigned int)lval;
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return(1);
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}
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/*
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* Print a character, escaping HTML along the way.
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* This will pass non-ASCII straight to output: be warned!
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*/
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static void
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html_putchar(char c)
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{
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switch (c) {
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case ('"'):
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printf(""e;");
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break;
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case ('&'):
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printf("&");
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break;
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case ('>'):
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printf(">");
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break;
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case ('<'):
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printf("<");
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break;
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default:
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putchar((unsigned char)c);
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break;
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}
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}
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static void
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http_printquery(const struct req *req)
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{
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printf("&expr=");
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http_print(req->q.expr ? req->q.expr : "");
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printf("&sec=");
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http_print(req->q.sec ? req->q.sec : "");
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printf("&arch=");
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http_print(req->q.arch ? req->q.arch : "");
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}
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static void
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html_printquery(const struct req *req)
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{
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printf("&expr=");
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html_print(req->q.expr ? req->q.expr : "");
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printf("&sec=");
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html_print(req->q.sec ? req->q.sec : "");
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printf("&arch=");
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html_print(req->q.arch ? req->q.arch : "");
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}
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static void
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http_print(const char *p)
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{
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if (NULL == p)
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return;
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while ('\0' != *p)
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http_putchar(*p++);
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}
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/*
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* Call through to html_putchar().
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* Accepts NULL strings.
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*/
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static void
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html_print(const char *p)
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{
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if (NULL == p)
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return;
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while ('\0' != *p)
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html_putchar(*p++);
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}
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/*
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* Parse out key-value pairs from an HTTP request variable.
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* This can be either a cookie or a POST/GET string, although man.cgi
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* uses only GET for simplicity.
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*/
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static void
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http_parse(struct req *req, char *p)
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{
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char *key, *val, *manroot;
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int i, legacy;
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memset(&req->q, 0, sizeof(struct query));
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req->q.whatis = 1;
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legacy = -1;
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manroot = NULL;
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while ('\0' != *p) {
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key = p;
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val = NULL;
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p += (int)strcspn(p, ";&");
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if ('\0' != *p)
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*p++ = '\0';
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if (NULL != (val = strchr(key, '=')))
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*val++ = '\0';
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if ('\0' == *key || NULL == val || '\0' == *val)
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continue;
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/* Just abort handling. */
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if ( ! http_decode(key))
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break;
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if (NULL != val && ! http_decode(val))
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break;
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if (0 == strcmp(key, "expr"))
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req->q.expr = val;
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else if (0 == strcmp(key, "query"))
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req->q.expr = val;
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else if (0 == strcmp(key, "sec"))
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req->q.sec = val;
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else if (0 == strcmp(key, "sektion"))
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req->q.sec = val;
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else if (0 == strcmp(key, "arch"))
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req->q.arch = val;
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else if (0 == strcmp(key, "manpath"))
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manroot = val;
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else if (0 == strcmp(key, "apropos"))
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legacy = 0 == strcmp(val, "0");
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else if (0 == strcmp(key, "op"))
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req->q.whatis = 0 == strcasecmp(val, "whatis");
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}
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/* Test for old man.cgi compatibility mode. */
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if (legacy == 0) {
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req->q.whatis = 0;
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req->q.legacy = 1;
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} else if (legacy > 0) {
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req->q.legacy = 1;
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req->q.whatis = 1;
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}
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/*
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* Section "0" means no section when in legacy mode.
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* For some man.cgi scripts, "default" arch is none.
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*/
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if (req->q.legacy && NULL != req->q.sec)
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if (0 == strcmp(req->q.sec, "0"))
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req->q.sec = NULL;
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if (req->q.legacy && NULL != req->q.arch)
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if (0 == strcmp(req->q.arch, "default"))
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req->q.arch = NULL;
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/* Default to first manroot. */
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if (NULL != manroot) {
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for (i = 0; i < (int)req->psz; i++)
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if (0 == strcmp(req->p[i].name, manroot))
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break;
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req->q.manroot = i < (int)req->psz ? i : -1;
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}
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}
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static void
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http_putchar(char c)
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{
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if (isalnum((unsigned char)c)) {
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putchar((unsigned char)c);
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return;
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} else if (' ' == c) {
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putchar('+');
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return;
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}
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printf("%%%.2x", c);
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}
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/*
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* HTTP-decode a string. The standard explanation is that this turns
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* "%4e+foo" into "n foo" in the regular way. This is done in-place
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* over the allocated string.
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*/
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static int
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http_decode(char *p)
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{
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char hex[3];
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int c;
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hex[2] = '\0';
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for ( ; '\0' != *p; p++) {
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if ('%' == *p) {
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if ('\0' == (hex[0] = *(p + 1)))
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return(0);
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if ('\0' == (hex[1] = *(p + 2)))
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return(0);
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if (1 != sscanf(hex, "%x", &c))
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return(0);
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if ('\0' == c)
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return(0);
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*p = (char)c;
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memmove(p + 1, p + 3, strlen(p + 3) + 1);
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} else
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*p = '+' == *p ? ' ' : *p;
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}
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*p = '\0';
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return(1);
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}
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static void
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resp_begin_http(int code, const char *msg)
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{
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if (200 != code)
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printf("Status: %d %s\n", code, msg);
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puts("Content-Type: text/html; charset=utf-8\n"
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"Cache-Control: no-cache\n"
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"Pragma: no-cache\n"
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"");
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fflush(stdout);
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}
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static void
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resp_begin_html(int code, const char *msg)
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{
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resp_begin_http(code, msg);
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printf("<!DOCTYPE HTML PUBLIC "
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" \"-//W3C//DTD HTML 4.01//EN\""
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" \"http://www.w3.org/TR/html4/strict.dtd\">\n"
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"<HTML>\n"
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"<HEAD>\n"
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"<META HTTP-EQUIV=\"Content-Type\""
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" CONTENT=\"text/html; charset=utf-8\">\n"
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"<LINK REL=\"stylesheet\" HREF=\"%s/man-cgi.css\""
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" TYPE=\"text/css\" media=\"all\">\n"
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"<LINK REL=\"stylesheet\" HREF=\"%s/man.css\""
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" TYPE=\"text/css\" media=\"all\">\n"
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"<TITLE>System Manpage Reference</TITLE>\n"
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"</HEAD>\n"
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"<BODY>\n"
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"<!-- Begin page content. //-->\n", css, css);
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}
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static void
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resp_end_html(void)
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{
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puts("</BODY>\n"
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"</HTML>");
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}
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static void
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resp_searchform(const struct req *req)
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{
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int i;
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puts("<!-- Begin search form. //-->");
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printf("<DIV ID=\"mancgi\">\n"
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"<FORM ACTION=\"%s/search.html\" METHOD=\"get\">\n"
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"<FIELDSET>\n"
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"<LEGEND>Search Parameters</LEGEND>\n"
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"<INPUT TYPE=\"submit\" NAME=\"op\""
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" VALUE=\"Whatis\"> or \n"
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"<INPUT TYPE=\"submit\" NAME=\"op\""
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" VALUE=\"apropos\"> for manuals satisfying \n"
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"<INPUT TYPE=\"text\" NAME=\"expr\" VALUE=\"",
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progname);
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html_print(req->q.expr ? req->q.expr : "");
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printf("\">, section "
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"<INPUT TYPE=\"text\""
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" SIZE=\"4\" NAME=\"sec\" VALUE=\"");
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html_print(req->q.sec ? req->q.sec : "");
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printf("\">, arch "
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"<INPUT TYPE=\"text\""
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" SIZE=\"8\" NAME=\"arch\" VALUE=\"");
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html_print(req->q.arch ? req->q.arch : "");
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printf("\">");
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if (req->psz > 1) {
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puts(", <SELECT NAME=\"manpath\">");
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for (i = 0; i < (int)req->psz; i++) {
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printf("<OPTION %s VALUE=\"",
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(i == req->q.manroot) ||
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(0 == i && -1 == req->q.manroot) ?
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"SELECTED=\"selected\"" : "");
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html_print(req->p[i].name);
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printf("\">");
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html_print(req->p[i].name);
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puts("</OPTION>");
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}
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puts("</SELECT>");
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}
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puts(".\n"
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"<INPUT TYPE=\"reset\" VALUE=\"Reset\">\n"
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"</FIELDSET>\n"
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"</FORM>\n"
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"</DIV>");
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puts("<!-- End search form. //-->");
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}
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static void
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resp_index(const struct req *req)
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{
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resp_begin_html(200, NULL);
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resp_searchform(req);
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resp_end_html();
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}
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static void
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resp_error400(void)
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{
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resp_begin_html(400, "Query Malformed");
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printf("<H1>Malformed Query</H1>\n"
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"<P>\n"
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"The query your entered was malformed.\n"
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"Try again from the\n"
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"<A HREF=\"%s/index.html\">main page</A>.\n"
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"</P>", progname);
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resp_end_html();
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}
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static void
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resp_error404(const char *page)
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{
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resp_begin_html(404, "Not Found");
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puts("<H1>Page Not Found</H1>\n"
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"<P>\n"
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"The page you're looking for, ");
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printf("<B>");
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html_print(page);
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printf("</B>,\n"
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"could not be found.\n"
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"Try searching from the\n"
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"<A HREF=\"%s/index.html\">main page</A>.\n"
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"</P>", progname);
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resp_end_html();
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}
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|
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static void
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resp_bad(void)
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{
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resp_begin_html(500, "Internal Server Error");
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puts("<P>Generic badness happened.</P>");
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resp_end_html();
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}
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static void
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resp_baddb(void)
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|
{
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resp_begin_html(500, "Internal Server Error");
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puts("<P>Your database is broken.</P>");
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resp_end_html();
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}
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|
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static void
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resp_search(struct res *r, size_t sz, void *arg)
|
|
{
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int i;
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const struct req *req;
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|
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req = (const struct req *)arg;
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|
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if (sz > 0)
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assert(req->q.manroot >= 0);
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|
|
if (1 == sz) {
|
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/*
|
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* If we have just one result, then jump there now
|
|
* without any delay.
|
|
*/
|
|
puts("Status: 303 See Other");
|
|
printf("Location: http://%s%s/show/%d/%u/%u.html?",
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host, progname, req->q.manroot,
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r[0].volume, r[0].rec);
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http_printquery(req);
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|
puts("\n"
|
|
"Content-Type: text/html; charset=utf-8\n");
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return;
|
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}
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|
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qsort(r, sz, sizeof(struct res), cmp);
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|
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resp_begin_html(200, NULL);
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|
resp_searchform(req);
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|
|
|
puts("<DIV CLASS=\"results\">");
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|
|
|
if (0 == sz) {
|
|
printf("<P>\n"
|
|
"No %s results found.\n",
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req->q.whatis ? "whatis" : "apropos");
|
|
if (req->q.whatis) {
|
|
printf("(Try "
|
|
"<A HREF=\"%s/search.html?op=apropos",
|
|
progname);
|
|
html_printquery(req);
|
|
puts("\">apropos</A>?)");
|
|
}
|
|
puts("</P>");
|
|
puts("</DIV>");
|
|
resp_end_html();
|
|
return;
|
|
}
|
|
|
|
puts("<TABLE>");
|
|
|
|
for (i = 0; i < (int)sz; i++) {
|
|
printf("<TR>\n"
|
|
"<TD CLASS=\"title\">\n"
|
|
"<A HREF=\"%s/show/%d/%u/%u.html?",
|
|
progname, req->q.manroot,
|
|
r[i].volume, r[i].rec);
|
|
html_printquery(req);
|
|
printf("\">");
|
|
html_print(r[i].title);
|
|
putchar('(');
|
|
html_print(r[i].cat);
|
|
if (r[i].arch && '\0' != *r[i].arch) {
|
|
putchar('/');
|
|
html_print(r[i].arch);
|
|
}
|
|
printf(")</A>\n"
|
|
"</TD>\n"
|
|
"<TD CLASS=\"desc\">");
|
|
html_print(r[i].desc);
|
|
puts("</TD>\n"
|
|
"</TR>");
|
|
}
|
|
|
|
puts("</TABLE>\n"
|
|
"</DIV>");
|
|
resp_end_html();
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
pg_index(const struct req *req, char *path)
|
|
{
|
|
|
|
resp_index(req);
|
|
}
|
|
|
|
static void
|
|
catman(const struct req *req, const char *file)
|
|
{
|
|
FILE *f;
|
|
size_t len;
|
|
int i;
|
|
char *p;
|
|
int italic, bold;
|
|
|
|
if (NULL == (f = fopen(file, "r"))) {
|
|
resp_baddb();
|
|
return;
|
|
}
|
|
|
|
resp_begin_html(200, NULL);
|
|
resp_searchform(req);
|
|
puts("<DIV CLASS=\"catman\">\n"
|
|
"<PRE>");
|
|
|
|
while (NULL != (p = fgetln(f, &len))) {
|
|
bold = italic = 0;
|
|
for (i = 0; i < (int)len - 1; i++) {
|
|
/*
|
|
* This means that the catpage is out of state.
|
|
* Ignore it and keep going (although the
|
|
* catpage is bogus).
|
|
*/
|
|
|
|
if ('\b' == p[i] || '\n' == p[i])
|
|
continue;
|
|
|
|
/*
|
|
* Print a regular character.
|
|
* Close out any bold/italic scopes.
|
|
* If we're in back-space mode, make sure we'll
|
|
* have something to enter when we backspace.
|
|
*/
|
|
|
|
if ('\b' != p[i + 1]) {
|
|
if (italic)
|
|
printf("</I>");
|
|
if (bold)
|
|
printf("</B>");
|
|
italic = bold = 0;
|
|
html_putchar(p[i]);
|
|
continue;
|
|
} else if (i + 2 >= (int)len)
|
|
continue;
|
|
|
|
/* Italic mode. */
|
|
|
|
if ('_' == p[i]) {
|
|
if (bold)
|
|
printf("</B>");
|
|
if ( ! italic)
|
|
printf("<I>");
|
|
bold = 0;
|
|
italic = 1;
|
|
i += 2;
|
|
html_putchar(p[i]);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Handle funny behaviour troff-isms.
|
|
* These grok'd from the original man2html.c.
|
|
*/
|
|
|
|
if (('+' == p[i] && 'o' == p[i + 2]) ||
|
|
('o' == p[i] && '+' == p[i + 2]) ||
|
|
('|' == p[i] && '=' == p[i + 2]) ||
|
|
('=' == p[i] && '|' == p[i + 2]) ||
|
|
('*' == p[i] && '=' == p[i + 2]) ||
|
|
('=' == p[i] && '*' == p[i + 2]) ||
|
|
('*' == p[i] && '|' == p[i + 2]) ||
|
|
('|' == p[i] && '*' == p[i + 2])) {
|
|
if (italic)
|
|
printf("</I>");
|
|
if (bold)
|
|
printf("</B>");
|
|
italic = bold = 0;
|
|
putchar('*');
|
|
i += 2;
|
|
continue;
|
|
} else if (('|' == p[i] && '-' == p[i + 2]) ||
|
|
('-' == p[i] && '|' == p[i + 1]) ||
|
|
('+' == p[i] && '-' == p[i + 1]) ||
|
|
('-' == p[i] && '+' == p[i + 1]) ||
|
|
('+' == p[i] && '|' == p[i + 1]) ||
|
|
('|' == p[i] && '+' == p[i + 1])) {
|
|
if (italic)
|
|
printf("</I>");
|
|
if (bold)
|
|
printf("</B>");
|
|
italic = bold = 0;
|
|
putchar('+');
|
|
i += 2;
|
|
continue;
|
|
}
|
|
|
|
/* Bold mode. */
|
|
|
|
if (italic)
|
|
printf("</I>");
|
|
if ( ! bold)
|
|
printf("<B>");
|
|
bold = 1;
|
|
italic = 0;
|
|
i += 2;
|
|
html_putchar(p[i]);
|
|
}
|
|
|
|
/*
|
|
* Clean up the last character.
|
|
* We can get to a newline; don't print that.
|
|
*/
|
|
|
|
if (italic)
|
|
printf("</I>");
|
|
if (bold)
|
|
printf("</B>");
|
|
|
|
if (i == (int)len - 1 && '\n' != p[i])
|
|
html_putchar(p[i]);
|
|
|
|
putchar('\n');
|
|
}
|
|
|
|
puts("</PRE>\n"
|
|
"</DIV>\n"
|
|
"</BODY>\n"
|
|
"</HTML>");
|
|
|
|
fclose(f);
|
|
}
|
|
|
|
static void
|
|
format(const struct req *req, const char *file)
|
|
{
|
|
struct mparse *mp;
|
|
int fd;
|
|
struct mdoc *mdoc;
|
|
struct man *man;
|
|
void *vp;
|
|
enum mandoclevel rc;
|
|
char opts[MAXPATHLEN + 128];
|
|
|
|
if (-1 == (fd = open(file, O_RDONLY, 0))) {
|
|
resp_baddb();
|
|
return;
|
|
}
|
|
|
|
mp = mparse_alloc(MPARSE_AUTO, MANDOCLEVEL_FATAL, NULL, NULL);
|
|
rc = mparse_readfd(mp, fd, file);
|
|
close(fd);
|
|
|
|
if (rc >= MANDOCLEVEL_FATAL) {
|
|
resp_baddb();
|
|
return;
|
|
}
|
|
|
|
snprintf(opts, sizeof(opts), "fragment,"
|
|
"man=%s/search.html?sec=%%S&expr=%%N,"
|
|
/*"includes=/cgi-bin/man.cgi/usr/include/%%I"*/,
|
|
progname);
|
|
|
|
mparse_result(mp, &mdoc, &man);
|
|
if (NULL == man && NULL == mdoc) {
|
|
resp_baddb();
|
|
mparse_free(mp);
|
|
return;
|
|
}
|
|
|
|
resp_begin_html(200, NULL);
|
|
resp_searchform(req);
|
|
|
|
vp = html_alloc(opts);
|
|
|
|
if (NULL != mdoc)
|
|
html_mdoc(vp, mdoc);
|
|
else
|
|
html_man(vp, man);
|
|
|
|
puts("</BODY>\n"
|
|
"</HTML>");
|
|
|
|
html_free(vp);
|
|
mparse_free(mp);
|
|
}
|
|
|
|
static void
|
|
pg_show(const struct req *req, char *path)
|
|
{
|
|
struct manpaths ps;
|
|
size_t sz;
|
|
char *sub;
|
|
char file[MAXPATHLEN];
|
|
const char *cp;
|
|
int rc, catm;
|
|
unsigned int vol, rec, mr;
|
|
DB *idx;
|
|
DBT key, val;
|
|
|
|
idx = NULL;
|
|
|
|
/* Parse out mroot, volume, and record from the path. */
|
|
|
|
if (NULL == path || NULL == (sub = strchr(path, '/'))) {
|
|
resp_error400();
|
|
return;
|
|
}
|
|
*sub++ = '\0';
|
|
if ( ! atou(path, &mr)) {
|
|
resp_error400();
|
|
return;
|
|
}
|
|
path = sub;
|
|
if (NULL == (sub = strchr(path, '/'))) {
|
|
resp_error400();
|
|
return;
|
|
}
|
|
*sub++ = '\0';
|
|
if ( ! atou(path, &vol) || ! atou(sub, &rec)) {
|
|
resp_error400();
|
|
return;
|
|
} else if (mr >= (unsigned int)req->psz) {
|
|
resp_error400();
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Begin by chdir()ing into the manroot.
|
|
* This way we can pick up the database files, which are
|
|
* relative to the manpath root.
|
|
*/
|
|
|
|
if (-1 == chdir(req->p[(int)mr].path)) {
|
|
perror(req->p[(int)mr].path);
|
|
resp_baddb();
|
|
return;
|
|
}
|
|
|
|
memset(&ps, 0, sizeof(struct manpaths));
|
|
manpath_manconf(&ps, "etc/catman.conf");
|
|
|
|
if (vol >= (unsigned int)ps.sz) {
|
|
resp_error400();
|
|
goto out;
|
|
}
|
|
|
|
sz = strlcpy(file, ps.paths[vol], MAXPATHLEN);
|
|
assert(sz < MAXPATHLEN);
|
|
strlcat(file, "/", MAXPATHLEN);
|
|
strlcat(file, MANDOC_IDX, MAXPATHLEN);
|
|
|
|
/* Open the index recno(3) database. */
|
|
|
|
idx = dbopen(file, O_RDONLY, 0, DB_RECNO, NULL);
|
|
if (NULL == idx) {
|
|
perror(file);
|
|
resp_baddb();
|
|
goto out;
|
|
}
|
|
|
|
key.data = &rec;
|
|
key.size = 4;
|
|
|
|
if (0 != (rc = (*idx->get)(idx, &key, &val, 0))) {
|
|
rc < 0 ? resp_baddb() : resp_error400();
|
|
goto out;
|
|
} else if (0 == val.size) {
|
|
resp_baddb();
|
|
goto out;
|
|
}
|
|
|
|
cp = (char *)val.data;
|
|
catm = 'c' == *cp++;
|
|
|
|
if (NULL == memchr(cp, '\0', val.size - 1))
|
|
resp_baddb();
|
|
else {
|
|
file[(int)sz] = '\0';
|
|
strlcat(file, "/", MAXPATHLEN);
|
|
strlcat(file, cp, MAXPATHLEN);
|
|
if (catm)
|
|
catman(req, file);
|
|
else
|
|
format(req, file);
|
|
}
|
|
out:
|
|
if (idx)
|
|
(*idx->close)(idx);
|
|
manpath_free(&ps);
|
|
}
|
|
|
|
static void
|
|
pg_search(const struct req *req, char *path)
|
|
{
|
|
size_t tt;
|
|
struct manpaths ps;
|
|
int i, sz, rc;
|
|
const char *ep, *start;
|
|
char **cp;
|
|
struct opts opt;
|
|
struct expr *expr;
|
|
|
|
if (req->q.manroot < 0 || 0 == req->psz) {
|
|
resp_search(NULL, 0, (void *)req);
|
|
return;
|
|
}
|
|
|
|
memset(&opt, 0, sizeof(struct opts));
|
|
|
|
ep = req->q.expr;
|
|
opt.arch = req->q.arch;
|
|
opt.cat = req->q.sec;
|
|
rc = -1;
|
|
sz = 0;
|
|
cp = NULL;
|
|
|
|
/*
|
|
* Begin by chdir()ing into the root of the manpath.
|
|
* This way we can pick up the database files, which are
|
|
* relative to the manpath root.
|
|
*/
|
|
|
|
assert(req->q.manroot < (int)req->psz);
|
|
if (-1 == (chdir(req->p[req->q.manroot].path))) {
|
|
perror(req->p[req->q.manroot].path);
|
|
resp_search(NULL, 0, (void *)req);
|
|
return;
|
|
}
|
|
|
|
memset(&ps, 0, sizeof(struct manpaths));
|
|
manpath_manconf(&ps, "etc/catman.conf");
|
|
|
|
/*
|
|
* Poor man's tokenisation: just break apart by spaces.
|
|
* Yes, this is half-ass. But it works for now.
|
|
*/
|
|
|
|
while (ep && isspace((unsigned char)*ep))
|
|
ep++;
|
|
|
|
while (ep && '\0' != *ep) {
|
|
cp = mandoc_realloc(cp, (sz + 1) * sizeof(char *));
|
|
start = ep;
|
|
while ('\0' != *ep && ! isspace((unsigned char)*ep))
|
|
ep++;
|
|
cp[sz] = mandoc_malloc((ep - start) + 1);
|
|
memcpy(cp[sz], start, ep - start);
|
|
cp[sz++][ep - start] = '\0';
|
|
while (isspace((unsigned char)*ep))
|
|
ep++;
|
|
}
|
|
|
|
/*
|
|
* Pump down into apropos backend.
|
|
* The resp_search() function is called with the results.
|
|
*/
|
|
|
|
expr = req->q.whatis ?
|
|
termcomp(sz, cp, &tt) : exprcomp(sz, cp, &tt);
|
|
|
|
if (NULL != expr)
|
|
rc = apropos_search
|
|
(ps.sz, ps.paths, &opt,
|
|
expr, tt, (void *)req, resp_search);
|
|
|
|
/* ...unless errors occured. */
|
|
|
|
if (0 == rc)
|
|
resp_baddb();
|
|
else if (-1 == rc)
|
|
resp_search(NULL, 0, (void *)req);
|
|
|
|
for (i = 0; i < sz; i++)
|
|
free(cp[i]);
|
|
|
|
free(cp);
|
|
exprfree(expr);
|
|
manpath_free(&ps);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
int i;
|
|
char buf[MAXPATHLEN];
|
|
DIR *cwd;
|
|
struct req req;
|
|
char *p, *path, *subpath;
|
|
|
|
/* Scan our run-time environment. */
|
|
|
|
if (NULL == (cache = getenv("CACHE_DIR")))
|
|
cache = "/cache/man.cgi";
|
|
|
|
if (NULL == (progname = getenv("SCRIPT_NAME")))
|
|
progname = "";
|
|
|
|
if (NULL == (css = getenv("CSS_DIR")))
|
|
css = "";
|
|
|
|
if (NULL == (host = getenv("HTTP_HOST")))
|
|
host = "localhost";
|
|
|
|
/*
|
|
* First we change directory into the cache directory so that
|
|
* subsequent scanning for manpath directories is rooted
|
|
* relative to the same position.
|
|
*/
|
|
|
|
if (-1 == chdir(cache)) {
|
|
perror(cache);
|
|
resp_bad();
|
|
return(EXIT_FAILURE);
|
|
} else if (NULL == (cwd = opendir(cache))) {
|
|
perror(cache);
|
|
resp_bad();
|
|
return(EXIT_FAILURE);
|
|
}
|
|
|
|
memset(&req, 0, sizeof(struct req));
|
|
|
|
strlcpy(buf, ".", MAXPATHLEN);
|
|
pathgen(cwd, buf, &req);
|
|
closedir(cwd);
|
|
|
|
/* Next parse out the query string. */
|
|
|
|
if (NULL != (p = getenv("QUERY_STRING")))
|
|
http_parse(&req, p);
|
|
|
|
/*
|
|
* Now juggle paths to extract information.
|
|
* We want to extract our filetype (the file suffix), the
|
|
* initial path component, then the trailing component(s).
|
|
* Start with leading subpath component.
|
|
*/
|
|
|
|
subpath = path = NULL;
|
|
req.page = PAGE__MAX;
|
|
|
|
if (NULL == (path = getenv("PATH_INFO")) || '\0' == *path)
|
|
req.page = PAGE_INDEX;
|
|
|
|
if (NULL != path && '/' == *path && '\0' == *++path)
|
|
req.page = PAGE_INDEX;
|
|
|
|
/* Strip file suffix. */
|
|
|
|
if (NULL != path && NULL != (p = strrchr(path, '.')))
|
|
if (NULL != p && NULL == strchr(p, '/'))
|
|
*p++ = '\0';
|
|
|
|
/* Resolve subpath component. */
|
|
|
|
if (NULL != path && NULL != (subpath = strchr(path, '/')))
|
|
*subpath++ = '\0';
|
|
|
|
/* Map path into one we recognise. */
|
|
|
|
if (NULL != path && '\0' != *path)
|
|
for (i = 0; i < (int)PAGE__MAX; i++)
|
|
if (0 == strcmp(pages[i], path)) {
|
|
req.page = (enum page)i;
|
|
break;
|
|
}
|
|
|
|
/* Route pages. */
|
|
|
|
switch (req.page) {
|
|
case (PAGE_INDEX):
|
|
pg_index(&req, subpath);
|
|
break;
|
|
case (PAGE_SEARCH):
|
|
pg_search(&req, subpath);
|
|
break;
|
|
case (PAGE_SHOW):
|
|
pg_show(&req, subpath);
|
|
break;
|
|
default:
|
|
resp_error404(path);
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < (int)req.psz; i++) {
|
|
free(req.p[i].path);
|
|
free(req.p[i].name);
|
|
}
|
|
|
|
free(req.p);
|
|
return(EXIT_SUCCESS);
|
|
}
|
|
|
|
static int
|
|
cmp(const void *p1, const void *p2)
|
|
{
|
|
|
|
return(strcasecmp(((const struct res *)p1)->title,
|
|
((const struct res *)p2)->title));
|
|
}
|
|
|
|
/*
|
|
* Check to see if an "etc" path consists of a catman.conf file. If it
|
|
* does, that means that the path contains a tree created by catman(8)
|
|
* and should be used for indexing.
|
|
*/
|
|
static int
|
|
pathstop(DIR *dir)
|
|
{
|
|
struct dirent *d;
|
|
|
|
while (NULL != (d = readdir(dir)))
|
|
if (DT_REG == d->d_type)
|
|
if (0 == strcmp(d->d_name, "catman.conf"))
|
|
return(1);
|
|
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* Scan for indexable paths.
|
|
* This adds all paths with "etc/catman.conf" to the buffer.
|
|
*/
|
|
static void
|
|
pathgen(DIR *dir, char *path, struct req *req)
|
|
{
|
|
struct dirent *d;
|
|
char *cp;
|
|
DIR *cd;
|
|
int rc;
|
|
size_t sz, ssz;
|
|
|
|
sz = strlcat(path, "/", MAXPATHLEN);
|
|
if (sz >= MAXPATHLEN) {
|
|
fprintf(stderr, "%s: Path too long", path);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* First, scan for the "etc" directory.
|
|
* If it's found, then see if it should cause us to stop. This
|
|
* happens when a catman.conf is found in the directory.
|
|
*/
|
|
|
|
rc = 0;
|
|
while (0 == rc && NULL != (d = readdir(dir))) {
|
|
if (DT_DIR != d->d_type || strcmp(d->d_name, "etc"))
|
|
continue;
|
|
|
|
path[(int)sz] = '\0';
|
|
ssz = strlcat(path, d->d_name, MAXPATHLEN);
|
|
|
|
if (ssz >= MAXPATHLEN) {
|
|
fprintf(stderr, "%s: Path too long", path);
|
|
return;
|
|
} else if (NULL == (cd = opendir(path))) {
|
|
perror(path);
|
|
return;
|
|
}
|
|
|
|
rc = pathstop(cd);
|
|
closedir(cd);
|
|
}
|
|
|
|
if (rc > 0) {
|
|
/* This also strips the trailing slash. */
|
|
path[(int)--sz] = '\0';
|
|
req->p = mandoc_realloc
|
|
(req->p,
|
|
(req->psz + 1) * sizeof(struct paths));
|
|
/*
|
|
* Strip out the leading "./" unless we're just a ".",
|
|
* in which case use an empty string as our name.
|
|
*/
|
|
req->p[(int)req->psz].path = mandoc_strdup(path);
|
|
req->p[(int)req->psz].name =
|
|
cp = mandoc_strdup(path + (1 == sz ? 1 : 2));
|
|
req->psz++;
|
|
/*
|
|
* The name is just the path with all the slashes taken
|
|
* out of it. Simple but effective.
|
|
*/
|
|
for ( ; '\0' != *cp; cp++)
|
|
if ('/' == *cp)
|
|
*cp = ' ';
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If no etc/catman.conf was found, recursively enter child
|
|
* directory and continue scanning.
|
|
*/
|
|
|
|
rewinddir(dir);
|
|
while (NULL != (d = readdir(dir))) {
|
|
if (DT_DIR != d->d_type || '.' == d->d_name[0])
|
|
continue;
|
|
|
|
path[(int)sz] = '\0';
|
|
ssz = strlcat(path, d->d_name, MAXPATHLEN);
|
|
|
|
if (ssz >= MAXPATHLEN) {
|
|
fprintf(stderr, "%s: Path too long", path);
|
|
return;
|
|
} else if (NULL == (cd = opendir(path))) {
|
|
perror(path);
|
|
return;
|
|
}
|
|
|
|
pathgen(cd, path, req);
|
|
closedir(cd);
|
|
}
|
|
}
|