| | 1 | /* |
| | 2 | * This file is part of DisOrder. |
| | 3 | * Copyright (C) 2004, 2005, 2007, 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 3 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, |
| | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 13 | * GNU 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, see <http://www.gnu.org/licenses/>. |
| | 17 | */ |
| | 18 | /** @file cgi/cgimain.c |
| | 19 | * @brief DisOrder CGI |
| | 20 | */ |
| | 21 | |
| | 22 | #include "disorder-cgi.h" |
| | 23 | |
| | 24 | int main(int argc, char **argv) { |
| | 25 | const char *conf; |
| | 26 | |
| | 27 | if(argc > 0) |
| | 28 | progname = argv[0]; |
| | 29 | /* RFC 3875 s8.2 recommends rejecting PATH_INFO if we don't make use of |
| | 30 | * it. */ |
| | 31 | /* TODO we could make disorder/ACTION equivalent to disorder?action=ACTION */ |
| | 32 | if(getenv("PATH_INFO")) { |
| | 33 | /* TODO it might be nice to link back to the right place... */ |
| | 34 | printf("Content-Type: text/html; charset=UTF-8\n"); |
| | 35 | printf("Status: 404\n"); |
| | 36 | printf("\n"); |
| | 37 | printf("<p>Sorry, is PATH_INFO not supported." |
| | 38 | "<a href=\"%s\">Try here instead.</a></p>\n", |
| | 39 | cgi_sgmlquote(infer_url(0/*!include_path_info*/))); |
| | 40 | exit(0); |
| | 41 | } |
| | 42 | /* Parse CGI arguments */ |
| | 43 | cgi_init(); |
| | 44 | /* We allow various things to be overridden from the environment. This is |
| | 45 | * intended for debugging and is not a documented feature. */ |
| | 46 | if((conf = getenv("DISORDER_CONFIG"))) |
| | 47 | configfile = xstrdup(conf); |
| | 48 | if(getenv("DISORDER_DEBUG")) |
| | 49 | debugging = 1; |
| | 50 | /* Read configuration */ |
| | 51 | if(config_read(0/*!server*/, NULL)) |
| | 52 | exit(EXIT_FAILURE); |
| | 53 | /* Figure out our URL. This can still be overridden from the config file if |
| | 54 | * necessary but it shouldn't be necessary in ordinary installations. */ |
| | 55 | if(!config->url) |
| | 56 | config->url = infer_url(1/*include_path_info*/); |
| | 57 | /* Pick up the cookie, if there is one */ |
| | 58 | dcgi_get_cookie(); |
| | 59 | /* Register expansions */ |
| | 60 | mx_register_builtin(); |
| | 61 | dcgi_expansions(); |
| | 62 | /* Update search path. We look in the config directory first and the data |
| | 63 | * directory second, so that the latter overrides the former. */ |
| | 64 | mx_search_path(pkgconfdir); |
| | 65 | mx_search_path(pkgdatadir); |
| | 66 | /* Never cache anythging */ |
| | 67 | if(printf("Cache-Control: no-cache\n") < 0) |
| | 68 | disorder_fatal(errno, "error writing to stdout"); |
| | 69 | /* Create the initial connection, trying the cookie if we found a suitable |
| | 70 | * one. */ |
| | 71 | dcgi_login(); |
| | 72 | /* Do whatever the user wanted */ |
| | 73 | dcgi_action(NULL); |
| | 74 | /* In practice if a write fails that probably means the web server went away, |
| | 75 | * but we log it anyway. */ |
| | 76 | if(fclose(stdout) < 0) |
| | 77 | disorder_fatal(errno, "error closing stdout"); |
| | 78 | return 0; |
| | 79 | } |
| | 80 | |
| | 81 | /* |
| | 82 | Local Variables: |
| | 83 | c-basic-offset:2 |
| | 84 | comment-column:40 |
| | 85 | fill-column:79 |
| | 86 | indent-tabs-mode:nil |
| | 87 | End: |
| | 88 | */ |
~mdw / disorder / blame_incremental