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1e97629d RK |
1 | /* |
2 | * This file is part of DisOrder. | |
3 | * Copyright (C) 2008 Richard Kettlewell | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
18 | * USA | |
19 | */ | |
20 | ||
21 | #include "disorder-cgi.h" | |
22 | ||
23 | /** @brief Client used by CGI | |
24 | * | |
25 | * The caller should arrange for this to be created before any of | |
26 | * these expansions are used (if it cannot connect then it's safe to | |
27 | * leave it as NULL). | |
28 | */ | |
29 | disorder_client *dcgi_client; | |
30 | ||
31 | /** @brief Login cookie */ | |
32 | char *dcgi_cookie; | |
33 | ||
34 | /** @brief Return a Cookie: header */ | |
35 | char *dcgi_cookie_header(void) { | |
36 | struct dynstr d[1]; | |
37 | struct url u; | |
38 | char *s; | |
39 | ||
40 | memset(&u, 0, sizeof u); | |
41 | dynstr_init(d); | |
42 | parse_url(config->url, &u); | |
43 | if(dcgi_cookie) { | |
44 | dynstr_append_string(d, "disorder="); | |
45 | dynstr_append_string(d, dcgi_cookie); | |
46 | } else { | |
47 | /* Force browser to discard cookie */ | |
48 | dynstr_append_string(d, "disorder=none;Max-Age=0"); | |
49 | } | |
50 | if(u.path) { | |
51 | /* The default domain matches the request host, so we need not override | |
52 | * that. But the default path only goes up to the rightmost /, which would | |
53 | * cause the browser to expose the cookie to other CGI programs on the same | |
54 | * web server. */ | |
55 | dynstr_append_string(d, ";Version=1;Path="); | |
56 | /* Formally we are supposed to quote the path, since it invariably has a | |
57 | * slash in it. However Safari does not parse quoted paths correctly, so | |
58 | * this won't work. Fortunately nothing else seems to care about proper | |
59 | * quoting of paths, so in practice we get with it. (See also | |
60 | * parse_cookie() where we are liberal about cookie paths on the way back | |
61 | * in.) */ | |
62 | dynstr_append_string(d, u.path); | |
63 | } | |
64 | dynstr_terminate(d); | |
65 | byte_xasprintf(&s, "Set-Cookie: %s", d->vec); | |
66 | return s; | |
67 | } | |
68 | ||
69 | /** @brief Log in as the current user or guest if none */ | |
70 | void dcgi_login(void) { | |
71 | /* Junk old data */ | |
72 | dcgi_lookup_reset(); | |
73 | /* Junk the old connection if there is one */ | |
74 | if(dcgi_client) | |
75 | disorder_close(dcgi_client); | |
76 | /* Create a new connection */ | |
77 | dcgi_client = disorder_new(0); | |
78 | /* Reconnect */ | |
79 | if(disorder_connect_cookie(dcgi_client, dcgi_cookie)) { | |
80 | dcgi_error("Cannot connect to server"); | |
81 | exit(0); | |
82 | } | |
83 | /* If there was a cookie but it went bad, we forget it */ | |
84 | if(dcgi_cookie && !strcmp(disorder_user(dcgi_client), "guest")) | |
85 | dcgi_cookie = 0; | |
86 | } | |
87 | ||
88 | /* | |
89 | Local Variables: | |
90 | c-basic-offset:2 | |
91 | comment-column:40 | |
92 | fill-column:79 | |
93 | indent-tabs-mode:nil | |
94 | End: | |
95 | */ |