1 | /********************************************************************\ |
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2 | * BitlBee -- An IRC to other IM-networks gateway * |
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3 | * * |
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4 | * Copyright 2002-2004 Wilmer van der Gaast and others * |
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5 | \********************************************************************/ |
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6 | |
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7 | /* Support for multiple storage backends */ |
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8 | |
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9 | /* Copyright (C) 2005 Jelmer Vernooij <jelmer@samba.org> */ |
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10 | |
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11 | /* |
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12 | This program is free software; you can redistribute it and/or modify |
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13 | it under the terms of the GNU General Public License as published by |
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14 | the Free Software Foundation; either version 2 of the License, or |
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15 | (at your option) any later version. |
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16 | |
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17 | This program is distributed in the hope that it will be useful, |
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18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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20 | GNU General Public License for more details. |
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21 | |
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22 | You should have received a copy of the GNU General Public License with |
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23 | the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; |
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24 | if not, write to the Free Software Foundation, Inc., 51 Franklin St., |
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25 | Fifth Floor, Boston, MA 02110-1301 USA |
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26 | */ |
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27 | |
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28 | #define BITLBEE_CORE |
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29 | #include "bitlbee.h" |
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30 | |
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31 | extern storage_t storage_xml; |
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32 | |
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33 | static GList *storage_backends = NULL; |
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34 | |
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35 | const struct prpl protocol_missing = { |
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36 | .name = "_unknown", |
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37 | }; |
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38 | |
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39 | void register_storage_backend(storage_t *backend) |
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40 | { |
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41 | storage_backends = g_list_append(storage_backends, backend); |
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42 | } |
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43 | |
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44 | static storage_t *storage_init_single(const char *name) |
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45 | { |
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46 | GList *gl; |
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47 | storage_t *st = NULL; |
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48 | |
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49 | for (gl = storage_backends; gl; gl = gl->next) { |
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50 | st = gl->data; |
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51 | if (strcmp(st->name, name) == 0) { |
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52 | break; |
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53 | } |
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54 | } |
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55 | |
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56 | if (gl == NULL) { |
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57 | return NULL; |
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58 | } |
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59 | |
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60 | if (st->init) { |
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61 | st->init(); |
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62 | } |
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63 | |
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64 | return st; |
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65 | } |
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66 | |
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67 | GList *storage_init(const char *primary, char **migrate) |
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68 | { |
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69 | GList *ret = NULL; |
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70 | int i; |
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71 | storage_t *storage; |
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72 | |
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73 | register_storage_backend(&storage_xml); |
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74 | |
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75 | storage = storage_init_single(primary); |
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76 | if (storage == NULL || storage->save == NULL) { |
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77 | return NULL; |
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78 | } |
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79 | |
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80 | ret = g_list_append(ret, storage); |
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81 | |
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82 | for (i = 0; migrate && migrate[i]; i++) { |
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83 | storage = storage_init_single(migrate[i]); |
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84 | |
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85 | if (storage) { |
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86 | ret = g_list_append(ret, storage); |
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87 | } |
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88 | } |
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89 | |
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90 | return ret; |
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91 | } |
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92 | |
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93 | storage_status_t storage_check_pass(irc_t *irc, const char *nick, const char *password) |
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94 | { |
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95 | GList *gl; |
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96 | |
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97 | /* Loop until we don't get NO_SUCH_USER */ |
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98 | |
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99 | for (gl = global.storage; gl; gl = gl->next) { |
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100 | storage_t *st = gl->data; |
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101 | storage_status_t status; |
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102 | |
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103 | status = st->check_pass(irc, nick, password); |
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104 | if (status != STORAGE_NO_SUCH_USER) { |
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105 | return status; |
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106 | } |
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107 | } |
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108 | |
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109 | return STORAGE_NO_SUCH_USER; |
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110 | } |
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111 | |
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112 | storage_status_t storage_load(irc_t * irc, const char *password) |
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113 | { |
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114 | GList *gl; |
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115 | |
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116 | if (irc && irc->status & USTATUS_IDENTIFIED) { |
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117 | return STORAGE_OTHER_ERROR; |
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118 | } |
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119 | |
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120 | /* Loop until we don't get NO_SUCH_USER */ |
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121 | for (gl = global.storage; gl; gl = gl->next) { |
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122 | storage_t *st = gl->data; |
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123 | storage_status_t status; |
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124 | |
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125 | status = st->load(irc, password); |
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126 | if (status == STORAGE_OK) { |
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127 | GSList *l; |
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128 | for (l = irc_plugins; l; l = l->next) { |
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129 | irc_plugin_t *p = l->data; |
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130 | if (p->storage_load) { |
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131 | p->storage_load(irc); |
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132 | } |
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133 | } |
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134 | return status; |
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135 | } |
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136 | |
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137 | if (status != STORAGE_NO_SUCH_USER) { |
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138 | return status; |
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139 | } |
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140 | } |
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141 | |
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142 | return STORAGE_NO_SUCH_USER; |
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143 | } |
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144 | |
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145 | storage_status_t storage_save(irc_t *irc, char *password, int overwrite) |
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146 | { |
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147 | storage_status_t st; |
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148 | GSList *l; |
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149 | |
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150 | if (password != NULL) { |
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151 | /* Should only use this in the "register" command. */ |
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152 | if (irc->password || overwrite) { |
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153 | return STORAGE_OTHER_ERROR; |
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154 | } |
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155 | |
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156 | irc_setpass(irc, password); |
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157 | } else if ((irc->status & USTATUS_IDENTIFIED) == 0) { |
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158 | return STORAGE_NO_SUCH_USER; |
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159 | } |
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160 | |
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161 | st = ((storage_t *) global.storage->data)->save(irc, overwrite); |
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162 | |
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163 | for (l = irc_plugins; l; l = l->next) { |
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164 | irc_plugin_t *p = l->data; |
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165 | if (p->storage_save) { |
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166 | p->storage_save(irc); |
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167 | } |
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168 | } |
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169 | |
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170 | if (password != NULL) { |
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171 | irc_setpass(irc, NULL); |
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172 | } |
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173 | |
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174 | return st; |
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175 | } |
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176 | |
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177 | storage_status_t storage_remove(const char *nick) |
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178 | { |
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179 | GList *gl; |
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180 | storage_status_t ret = STORAGE_OK; |
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181 | gboolean ok = FALSE; |
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182 | GSList *l; |
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183 | |
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184 | /* Remove this account from all storage backends. If this isn't |
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185 | * done, the account will still be usable, it'd just be |
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186 | * loaded from a different backend. */ |
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187 | for (gl = global.storage; gl; gl = gl->next) { |
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188 | storage_t *st = gl->data; |
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189 | storage_status_t status; |
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190 | |
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191 | status = st->remove(nick); |
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192 | ok |= status == STORAGE_OK; |
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193 | if (status != STORAGE_NO_SUCH_USER && status != STORAGE_OK) { |
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194 | ret = status; |
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195 | } |
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196 | } |
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197 | |
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198 | /* If at least one succeeded, remove plugin data. */ |
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199 | if (ok) { |
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200 | for (l = irc_plugins; l; l = l->next) { |
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201 | irc_plugin_t *p = l->data; |
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202 | if (p->storage_remove) { |
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203 | p->storage_remove(nick); |
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204 | } |
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205 | } |
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206 | } |
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207 | |
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208 | return ret; |
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209 | } |
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