| 1 | /* |
| 2 | * This file is part of DisOrder. |
| 3 | * Copyright (C) 2004-2008 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 <config.h> |
| 22 | #include "types.h" |
| 23 | |
| 24 | /** @brief Login cookie */ |
| 25 | char *login_cookie; |
| 26 | |
| 27 | /** @brief Table of actions */ |
| 28 | static const struct action { |
| 29 | /** @brief Action name */ |
| 30 | const char *name; |
| 31 | /** @brief Action handler */ |
| 32 | void (*handler)(void); |
| 33 | } actions[] = { |
| 34 | { "confirm", act_confirm }, |
| 35 | { "disable", act_disable }, |
| 36 | { "edituser", act_edituser }, |
| 37 | { "enable", act_enable }, |
| 38 | { "login", act_login }, |
| 39 | { "logout", act_logout }, |
| 40 | { "manage", act_manage }, |
| 41 | { "move", act_move }, |
| 42 | { "pause", act_pause }, |
| 43 | { "play", act_play }, |
| 44 | { "playing", act_playing }, |
| 45 | { "prefs", act_prefs }, |
| 46 | { "random-disable", act_random_disable }, |
| 47 | { "random-enable", act_random_enable }, |
| 48 | { "register", act_register }, |
| 49 | { "reminder", act_reminder }, |
| 50 | { "remove", act_remove }, |
| 51 | { "resume", act_resume }, |
| 52 | { "scratch", act_scratch }, |
| 53 | { "volume", act_volume }, |
| 54 | }; |
| 55 | |
| 56 | /** @brief Expand a template |
| 57 | * @param name Base name of template, or NULL to consult CGI args |
| 58 | */ |
| 59 | void disorder_cgi_expand(const char *name) { |
| 60 | const char *p; |
| 61 | |
| 62 | /* For unknown actions check that they aren't evil */ |
| 63 | for(p = name; *p && isalnum((unsigned char)*p); ++p) |
| 64 | ; |
| 65 | if(*p) |
| 66 | fatal(0, "invalid action name '%s'", action); |
| 67 | byte_xasprintf((char **)&p, "%s.tmpl", action); |
| 68 | if(mx_expand_file(p, sink_stdio(stdout), 0) == -1 |
| 69 | || fflush(stdout) < 0) |
| 70 | fatal(errno, "error writing to stdout"); |
| 71 | } |
| 72 | |
| 73 | /** @brief Execute a web action |
| 74 | * @param action Action to perform, or NULL to consult CGI args |
| 75 | * |
| 76 | * If no recognized action is specified then 'playing' is assumed. |
| 77 | */ |
| 78 | void disorder_cgi_action(const char *action) { |
| 79 | int n; |
| 80 | char *s; |
| 81 | |
| 82 | /* Consult CGI args if caller had no view */ |
| 83 | if(!action) |
| 84 | action = cgi_get("action"); |
| 85 | /* Pick a default if nobody cares at all */ |
| 86 | if(!action) { |
| 87 | /* We allow URLs which are just c=... in order to keep confirmation URLs, |
| 88 | * which are user-facing, as short as possible. Actually we could lose the |
| 89 | * c= for this... */ |
| 90 | if(cgi_get("c")) |
| 91 | action = "confirm"; |
| 92 | else |
| 93 | action = "playing"; |
| 94 | } |
| 95 | if((n = TABLE_FIND(actions, struct action, name, action)) >= 0) |
| 96 | /* Its a known action */ |
| 97 | actions[n].handler(); |
| 98 | else |
| 99 | /* Just expand the template */ |
| 100 | disorder_cgi_expand(action); |
| 101 | } |
| 102 | |
| 103 | /** @brief Generate an error page */ |
| 104 | void disorder_cgi_error(const char *msg, ...) { |
| 105 | va_list ap; |
| 106 | |
| 107 | va_start(ap, msg); |
| 108 | byte_xvasprintf(&error_string, msg, ap); |
| 109 | va_end(ap); |
| 110 | disorder_cgi_expand("error"); |
| 111 | } |
| 112 | |
| 113 | /** @brief Log in as the current user or guest if none */ |
| 114 | void disorder_cgi_login(dcgi_state *ds, struct sink *output) { |
| 115 | /* Junk old data */ |
| 116 | disorder_macros_reset(); |
| 117 | /* Reconnect */ |
| 118 | if(disorder_connect_cookie(client, login_cookie)) { |
| 119 | disorder_cgi_error("Cannot connect to server"); |
| 120 | exit(0); |
| 121 | } |
| 122 | /* If there was a cookie but it went bad, we forget it */ |
| 123 | if(login_cookie && !strcmp(disorder_user(>client), "guest")) |
| 124 | login_cookie = 0; |
| 125 | } |
| 126 | |
| 127 | /* |
| 128 | Local Variables: |
| 129 | c-basic-offset:2 |
| 130 | comment-column:40 |
| 131 | fill-column:79 |
| 132 | indent-tabs-mode:nil |
| 133 | End: |
| 134 | */ |