[a312b6b] | 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 2002-2006 Wilmer van der Gaast and others * |
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| 5 | \********************************************************************/ |
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| 6 | |
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| 7 | /* Storage backend that uses an XMLish format for all data. */ |
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| 8 | |
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| 9 | /* |
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| 10 | This program is free software; you can redistribute it and/or modify |
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| 11 | it under the terms of the GNU General Public License as published by |
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| 12 | the Free Software Foundation; either version 2 of the License, or |
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| 13 | (at your option) any later version. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, |
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | GNU General Public License for more details. |
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| 19 | |
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| 20 | You should have received a copy of the GNU General Public License with |
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| 21 | the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; |
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| 22 | if not, write to the Free Software Foundation, Inc., 59 Temple Place, |
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| 23 | Suite 330, Boston, MA 02111-1307 USA |
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| 24 | */ |
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| 25 | |
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| 26 | #define BITLBEE_CORE |
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| 27 | #include "bitlbee.h" |
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[d28f3b35] | 28 | #include "md5.h" |
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[a312b6b] | 29 | |
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[c121f89] | 30 | typedef enum |
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| 31 | { |
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| 32 | XML_PASS_CHECK_ONLY = -1, |
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| 33 | XML_PASS_UNKNOWN = 0, |
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| 34 | XML_PASS_OK |
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| 35 | } xml_pass_st; |
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| 36 | |
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| 37 | #define XML_PASS_ERRORMSG "Wrong username or password" |
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| 38 | |
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[a312b6b] | 39 | struct xml_parsedata |
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| 40 | { |
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| 41 | irc_t *irc; |
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| 42 | char *current_setting; |
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| 43 | account_t *current_account; |
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[c121f89] | 44 | char *given_nick; |
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| 45 | char *given_pass; |
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| 46 | xml_pass_st pass_st; |
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[a312b6b] | 47 | }; |
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| 48 | |
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| 49 | static char *xml_attr( const gchar **attr_names, const gchar **attr_values, const gchar *key ) |
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| 50 | { |
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| 51 | int i; |
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| 52 | |
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| 53 | for( i = 0; attr_names[i]; i ++ ) |
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| 54 | if( g_strcasecmp( attr_names[i], key ) == 0 ) |
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[c121f89] | 55 | return (char*) attr_values[i]; |
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[a312b6b] | 56 | |
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| 57 | return NULL; |
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| 58 | } |
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| 59 | |
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[c121f89] | 60 | static void xml_destroy_xd( gpointer data ) |
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| 61 | { |
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| 62 | struct xml_parsedata *xd = data; |
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| 63 | |
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| 64 | g_free( xd->given_nick ); |
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| 65 | g_free( xd->given_pass ); |
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| 66 | g_free( xd ); |
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| 67 | } |
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| 68 | |
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[a312b6b] | 69 | static void xml_start_element( GMarkupParseContext *ctx, const gchar *element_name, const gchar **attr_names, const gchar **attr_values, gpointer data, GError **error ) |
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| 70 | { |
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| 71 | struct xml_parsedata *xd = data; |
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[c121f89] | 72 | irc_t *irc = xd->irc; |
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[a312b6b] | 73 | |
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| 74 | if( g_strcasecmp( element_name, "user" ) == 0 ) |
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| 75 | { |
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| 76 | char *nick = xml_attr( attr_names, attr_values, "nick" ); |
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[c121f89] | 77 | char *pass = xml_attr( attr_names, attr_values, "password" ); |
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[a312b6b] | 78 | |
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[c121f89] | 79 | if( !nick || !pass ) |
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[a312b6b] | 80 | { |
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[c121f89] | 81 | g_set_error( error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT, |
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| 82 | "Missing attributes for %s element", element_name ); |
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[a312b6b] | 83 | } |
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[c121f89] | 84 | else |
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| 85 | { |
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[d28f3b35] | 86 | md5_byte_t pass_md5[16]; |
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| 87 | md5_state_t md5_state; |
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| 88 | int pass_match, i, j; |
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| 89 | |
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| 90 | md5_init( &md5_state ); |
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| 91 | md5_append( &md5_state, xd->given_pass, strlen( xd->given_pass ) ); |
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| 92 | md5_finish( &md5_state, pass_md5 ); |
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| 93 | |
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| 94 | for( i = 0; i < 16 && pass[i*2] && pass[i*2+1]; i ++ ) |
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| 95 | { |
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| 96 | sscanf( pass + i * 2, "%2x", &j ); |
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| 97 | if( j != pass_md5[i] ) |
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| 98 | break; |
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| 99 | } |
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| 100 | /* If we reached the end of the loop, it was a match! */ |
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| 101 | pass_match = i == 16; |
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| 102 | |
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| 103 | if( strcmp( nick, xd->given_nick ) == 0 && pass_match ) |
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| 104 | { |
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| 105 | if( xd->pass_st != XML_PASS_CHECK_ONLY ) |
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| 106 | xd->pass_st = XML_PASS_OK; |
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| 107 | } |
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| 108 | else |
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| 109 | { |
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| 110 | g_set_error( error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT, |
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| 111 | XML_PASS_ERRORMSG ); |
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| 112 | } |
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[c121f89] | 113 | } |
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| 114 | } |
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| 115 | else if( xd->pass_st < XML_PASS_OK ) |
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| 116 | { |
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| 117 | /* Let's not parse anything else if we only have to check |
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| 118 | the password. */ |
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[a312b6b] | 119 | } |
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| 120 | else if( g_strcasecmp( element_name, "account" ) == 0 ) |
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| 121 | { |
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[c121f89] | 122 | char *protocol, *handle, *server, *password; |
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[a312b6b] | 123 | struct prpl *prpl = NULL; |
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| 124 | |
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| 125 | handle = xml_attr( attr_names, attr_values, "handle" ); |
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| 126 | password = xml_attr( attr_names, attr_values, "password" ); |
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[c121f89] | 127 | server = xml_attr( attr_names, attr_values, "server" ); |
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[a312b6b] | 128 | |
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| 129 | protocol = xml_attr( attr_names, attr_values, "protocol" ); |
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| 130 | if( protocol ) |
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| 131 | prpl = find_protocol( protocol ); |
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| 132 | |
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[c121f89] | 133 | if( !handle || !password ) |
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| 134 | g_set_error( error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT, |
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| 135 | "Missing attributes for %s element", element_name ); |
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| 136 | else if( !prpl ) |
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| 137 | g_set_error( error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT, |
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| 138 | "Missing or unknown protocol %s element", element_name ); |
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| 139 | else |
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[a312b6b] | 140 | { |
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[c121f89] | 141 | xd->current_account = account_add( irc, prpl, handle, password ); |
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| 142 | if( server ) |
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| 143 | xd->current_account->server = g_strdup( server ); |
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[a312b6b] | 144 | } |
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| 145 | } |
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| 146 | else if( g_strcasecmp( element_name, "setting" ) == 0 ) |
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| 147 | { |
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| 148 | if( xd->current_account == NULL ) |
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| 149 | { |
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[c121f89] | 150 | char *setting; |
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| 151 | |
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| 152 | if( xd->current_setting ) |
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| 153 | { |
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| 154 | g_free( xd->current_setting ); |
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| 155 | xd->current_setting = NULL; |
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| 156 | } |
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| 157 | |
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| 158 | if( ( setting = xml_attr( attr_names, attr_values, "name" ) ) ) |
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| 159 | xd->current_setting = g_strdup( setting ); |
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| 160 | else |
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| 161 | g_set_error( error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT, |
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| 162 | "Missing attributes for %s element", element_name ); |
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[a312b6b] | 163 | } |
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| 164 | } |
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| 165 | else if( g_strcasecmp( element_name, "buddy" ) == 0 ) |
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| 166 | { |
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[c121f89] | 167 | char *handle, *nick; |
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| 168 | |
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| 169 | handle = xml_attr( attr_names, attr_values, "handle" ); |
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| 170 | nick = xml_attr( attr_names, attr_values, "nick" ); |
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| 171 | |
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| 172 | if( xd->current_account && handle && nick ) |
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| 173 | { |
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| 174 | nick_set( irc, handle, xd->current_account->prpl, nick ); |
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| 175 | } |
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| 176 | else |
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| 177 | { |
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| 178 | g_set_error( error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT, |
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| 179 | "Missing attributes for %s element", element_name ); |
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| 180 | } |
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[a312b6b] | 181 | } |
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| 182 | else |
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| 183 | { |
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[c121f89] | 184 | g_set_error( error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT, |
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| 185 | "Unkown element: %s", element_name ); |
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[a312b6b] | 186 | } |
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| 187 | } |
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| 188 | |
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| 189 | static void xml_end_element( GMarkupParseContext *ctx, const gchar *element_name, gpointer data, GError **error ) |
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| 190 | { |
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[5898ef8] | 191 | struct xml_parsedata *xd = data; |
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| 192 | // irc_t *irc = xd->irc; |
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| 193 | |
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| 194 | if( g_strcasecmp( element_name, "setting" ) == 0 && xd->current_setting ) |
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| 195 | { |
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| 196 | g_free( xd->current_setting ); |
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| 197 | xd->current_setting = NULL; |
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| 198 | } |
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| 199 | else if( g_strcasecmp( element_name, "account" ) == 0 ) |
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| 200 | { |
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| 201 | xd->current_account = NULL; |
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| 202 | } |
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[a312b6b] | 203 | } |
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| 204 | |
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| 205 | static void xml_text( GMarkupParseContext *ctx, const gchar *text, gsize text_len, gpointer data, GError **error ) |
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| 206 | { |
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| 207 | struct xml_parsedata *xd = data; |
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[c121f89] | 208 | irc_t *irc = xd->irc; |
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[a312b6b] | 209 | |
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[c121f89] | 210 | if( xd->pass_st < XML_PASS_OK ) |
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| 211 | { |
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| 212 | /* Let's not parse anything else if we only have to check |
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| 213 | the password. */ |
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| 214 | } |
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| 215 | else if( g_strcasecmp( g_markup_parse_context_get_element( ctx ), "setting" ) == 0 && |
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| 216 | xd->current_setting && xd->current_account == NULL ) |
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[a312b6b] | 217 | { |
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[c121f89] | 218 | set_setstr( irc, xd->current_setting, (char*) text ); |
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| 219 | g_free( xd->current_setting ); |
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| 220 | xd->current_setting = NULL; |
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[a312b6b] | 221 | } |
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| 222 | } |
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| 223 | |
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| 224 | GMarkupParser xml_parser = |
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| 225 | { |
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| 226 | xml_start_element, |
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| 227 | xml_end_element, |
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| 228 | xml_text, |
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| 229 | NULL, |
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[5898ef8] | 230 | NULL |
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[a312b6b] | 231 | }; |
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| 232 | |
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| 233 | static void xml_init( void ) |
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| 234 | { |
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| 235 | if( access( global.conf->configdir, F_OK ) != 0 ) |
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| 236 | log_message( LOGLVL_WARNING, "The configuration directory %s does not exist. Configuration won't be saved.", CONFIG ); |
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| 237 | else if( access( global.conf->configdir, R_OK ) != 0 || access( global.conf->configdir, W_OK ) != 0 ) |
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| 238 | log_message( LOGLVL_WARNING, "Permission problem: Can't read/write from/to %s.", global.conf->configdir ); |
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| 239 | } |
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| 240 | |
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[c121f89] | 241 | static storage_status_t xml_load( const char *my_nick, const char *password, irc_t *irc ) |
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[a312b6b] | 242 | { |
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| 243 | GMarkupParseContext *ctx; |
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[c121f89] | 244 | struct xml_parsedata *xd; |
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| 245 | char *fn, buf[512]; |
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| 246 | GError *gerr = NULL; |
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| 247 | int fd, st; |
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[a312b6b] | 248 | |
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[5898ef8] | 249 | if( irc->status & USTATUS_IDENTIFIED ) |
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[a312b6b] | 250 | return( 1 ); |
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| 251 | |
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[c121f89] | 252 | xd = g_new0( struct xml_parsedata, 1 ); |
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| 253 | xd->irc = irc; |
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| 254 | xd->given_nick = g_strdup( my_nick ); |
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| 255 | xd->given_pass = g_strdup( password ); |
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| 256 | nick_lc( xd->given_nick ); |
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[a312b6b] | 257 | |
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[c121f89] | 258 | fn = g_strdup_printf( "%s%s%s", global.conf->configdir, xd->given_nick, ".xml" ); |
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| 259 | if( ( fd = open( fn, O_RDONLY ) ) < 0 ) |
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[a312b6b] | 260 | { |
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[c121f89] | 261 | xml_destroy_xd( xd ); |
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| 262 | g_free( fn ); |
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| 263 | return STORAGE_NO_SUCH_USER; |
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[a312b6b] | 264 | } |
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[c121f89] | 265 | g_free( fn ); |
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[a312b6b] | 266 | |
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[c121f89] | 267 | ctx = g_markup_parse_context_new( &xml_parser, 0, xd, xml_destroy_xd ); |
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[a312b6b] | 268 | |
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[c121f89] | 269 | while( ( st = read( fd, buf, sizeof( buf ) ) ) > 0 ) |
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[a312b6b] | 270 | { |
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[c121f89] | 271 | if( !g_markup_parse_context_parse( ctx, buf, st, &gerr ) || gerr ) |
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| 272 | { |
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| 273 | g_markup_parse_context_free( ctx ); |
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[5898ef8] | 274 | close( fd ); |
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[c121f89] | 275 | |
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[5898ef8] | 276 | /* Slightly dirty... */ |
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[c121f89] | 277 | if( gerr && strcmp( gerr->message, XML_PASS_ERRORMSG ) == 0 ) |
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| 278 | return STORAGE_INVALID_PASSWORD; |
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| 279 | else |
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[5898ef8] | 280 | { |
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| 281 | if( gerr ) |
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| 282 | irc_usermsg( irc, "Error from XML-parser: %s", gerr->message ); |
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| 283 | |
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[c121f89] | 284 | return STORAGE_OTHER_ERROR; |
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[5898ef8] | 285 | } |
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[c121f89] | 286 | } |
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[a312b6b] | 287 | } |
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| 288 | |
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[c121f89] | 289 | g_markup_parse_context_free( ctx ); |
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[5898ef8] | 290 | close( fd ); |
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[c121f89] | 291 | |
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[5898ef8] | 292 | irc->status |= USTATUS_IDENTIFIED; |
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[a312b6b] | 293 | |
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| 294 | if( set_getint( irc, "auto_connect" ) ) |
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| 295 | { |
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[c121f89] | 296 | /* Can't do this directly because r_c_s alters the string */ |
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| 297 | strcpy( buf, "account on" ); |
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| 298 | root_command_string( irc, NULL, buf, 0 ); |
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[a312b6b] | 299 | } |
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| 300 | |
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| 301 | return STORAGE_OK; |
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| 302 | } |
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| 303 | |
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[5898ef8] | 304 | static int xml_printf( int fd, char *fmt, ... ) |
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| 305 | { |
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| 306 | va_list params; |
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| 307 | char *out; |
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| 308 | int len; |
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| 309 | |
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| 310 | va_start( params, fmt ); |
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| 311 | out = g_markup_vprintf_escaped( fmt, params ); |
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| 312 | va_end( params ); |
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| 313 | |
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| 314 | len = strlen( out ); |
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| 315 | len -= write( fd, out, len ); |
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| 316 | g_free( out ); |
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| 317 | |
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| 318 | return len == 0; |
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| 319 | } |
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| 320 | |
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[c121f89] | 321 | static storage_status_t xml_save( irc_t *irc, int overwrite ) |
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[a312b6b] | 322 | { |
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[5898ef8] | 323 | char path[512], *path2; |
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| 324 | set_t *set; |
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| 325 | nick_t *nick; |
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| 326 | account_t *acc; |
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| 327 | int fd; |
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[a312b6b] | 328 | |
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[5898ef8] | 329 | g_snprintf( path, sizeof( path ) - 2, "%s%s%s", global.conf->configdir, irc->nick, ".xml" ); |
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| 330 | |
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| 331 | if( !overwrite && access( path, F_OK ) != -1 ) |
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| 332 | return STORAGE_ALREADY_EXISTS; |
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| 333 | |
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| 334 | strcat( path, "~" ); |
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| 335 | if( ( fd = open( path, O_WRONLY | O_CREAT, 0600 ) ) < 0 ) |
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| 336 | { |
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| 337 | irc_usermsg( irc, "Error while opening configuration file." ); |
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| 338 | return STORAGE_OTHER_ERROR; |
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[a312b6b] | 339 | } |
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[5898ef8] | 340 | |
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| 341 | if( !xml_printf( fd, "<user nick=\"%s\" password=\"%s\">\n", irc->nick, irc->password ) ) |
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| 342 | goto write_error; |
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| 343 | |
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| 344 | for( set = irc->set; set; set = set->next ) |
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| 345 | if( set->value && set->def ) |
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| 346 | if( !xml_printf( fd, "\t<setting name=\"%s\">%s</setting>\n", set->key, set->value ) ) |
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| 347 | goto write_error; |
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| 348 | |
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| 349 | for( acc = irc->accounts; acc; acc = acc->next ) |
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| 350 | { |
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| 351 | if( !xml_printf( fd, "\t<account protocol=\"%s\" handle=\"%s\" password=\"%s\" autoconnect=\"%s\"", acc->prpl->name, acc->user, acc->pass, "yes" ) ) |
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| 352 | goto write_error; |
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| 353 | if( acc->server && acc->server[0] && !xml_printf( fd, " server=\"%s\"", acc->server ) ) |
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| 354 | goto write_error; |
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| 355 | if( !xml_printf( fd, ">\n" ) ) |
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| 356 | goto write_error; |
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| 357 | |
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| 358 | for( nick = irc->nicks; nick; nick = nick->next ) |
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| 359 | if( nick->proto == acc->prpl ) |
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| 360 | if( !xml_printf( fd, "\t\t<buddy handle=\"%s\" nick=\"%s\" />\n", nick->handle, nick->nick ) ) |
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| 361 | goto write_error; |
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| 362 | |
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| 363 | if( !xml_printf( fd, "\t</account>\n" ) ) |
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| 364 | goto write_error; |
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| 365 | } |
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| 366 | |
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| 367 | if( !xml_printf( fd, "</user>\n" ) ) |
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| 368 | goto write_error; |
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| 369 | |
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| 370 | close( fd ); |
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| 371 | |
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| 372 | path2 = g_strndup( path, strlen( path ) - 1 ); |
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| 373 | if( rename( path, path2 ) != 0 ) |
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| 374 | { |
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| 375 | irc_usermsg( irc, "Error while renaming temporary configuration file." ); |
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| 376 | |
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| 377 | g_free( path2 ); |
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| 378 | unlink( path ); |
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| 379 | |
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| 380 | return STORAGE_OTHER_ERROR; |
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| 381 | } |
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| 382 | |
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| 383 | g_free( path2 ); |
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| 384 | |
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[a312b6b] | 385 | return STORAGE_OK; |
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[5898ef8] | 386 | |
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| 387 | write_error: |
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| 388 | irc_usermsg( irc, "Write error. Disk full?" ); |
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| 389 | close( fd ); |
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| 390 | |
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| 391 | return STORAGE_OTHER_ERROR; |
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[a312b6b] | 392 | } |
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| 393 | |
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| 394 | storage_t storage_xml = { |
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| 395 | .name = "xml", |
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| 396 | .init = xml_init, |
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[c121f89] | 397 | // .check_pass = xml_check_pass, |
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| 398 | // .remove = xml_remove, |
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[a312b6b] | 399 | .load = xml_load, |
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| 400 | .save = xml_save |
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| 401 | }; |
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