1 | /** soap.c |
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2 | * |
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3 | * SOAP-related functions. Some manager at Microsoft apparently thought |
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4 | * MSNP wasn't XMLy enough so someone stepped up and changed that. This |
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5 | * is the result. |
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6 | * |
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7 | * Copyright (C) 2010 Wilmer van der Gaast <wilmer@gaast.net> |
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8 | * |
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9 | * This program is free software; you can redistribute it and/or modify |
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10 | * it under the terms of the GNU General Public License version 2 |
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11 | * as published by the Free Software Foundation |
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12 | * |
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13 | * This program is distributed in the hope that is will be useful, |
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14 | * bit WITHOU ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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21 | * |
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22 | */ |
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23 | |
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24 | #include "http_client.h" |
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25 | #include "soap.h" |
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26 | #include "msn.h" |
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27 | #include "bitlbee.h" |
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28 | #include "url.h" |
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29 | #include "misc.h" |
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30 | #include "sha1.h" |
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31 | #include "base64.h" |
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32 | #include "xmltree.h" |
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33 | #include <ctype.h> |
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34 | #include <errno.h> |
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35 | |
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36 | typedef enum |
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37 | { |
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38 | MSN_SOAP_OK, |
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39 | MSN_SOAP_RETRY, |
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40 | MSN_SOAP_ABORT, |
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41 | } msn_soap_result_t; |
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42 | |
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43 | struct msn_soap_req_data; |
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44 | |
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45 | typedef int (*msn_soap_func) ( struct msn_soap_req_data * ); |
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46 | |
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47 | struct msn_soap_req_data |
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48 | { |
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49 | void *data; |
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50 | struct im_connection *ic; |
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51 | int ttl; |
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52 | |
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53 | char *url, *action, *payload; |
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54 | struct http_request *http_req; |
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55 | |
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56 | const struct xt_handler_entry *xml_parser; |
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57 | msn_soap_func build_request, handle_response, free_data; |
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58 | }; |
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59 | |
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60 | static int msn_soap_send_request( struct msn_soap_req_data *req ); |
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61 | |
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62 | static int msn_soap_start( struct im_connection *ic, |
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63 | void *data, |
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64 | msn_soap_func build_request, |
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65 | const struct xt_handler_entry *xml_parser, |
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66 | msn_soap_func handle_response, |
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67 | msn_soap_func free_data ) |
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68 | { |
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69 | struct msn_soap_req_data *req = g_new0( struct msn_soap_req_data, 1 ); |
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70 | |
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71 | req->ic = ic; |
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72 | req->data = data; |
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73 | req->xml_parser = xml_parser; |
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74 | req->build_request = build_request; |
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75 | req->handle_response = handle_response; |
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76 | req->free_data = free_data; |
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77 | req->ttl = 3; |
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78 | |
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79 | return msn_soap_send_request( req ); |
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80 | } |
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81 | |
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82 | static void msn_soap_handle_response( struct http_request *http_req ); |
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83 | |
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84 | static int msn_soap_send_request( struct msn_soap_req_data *soap_req ) |
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85 | { |
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86 | char *http_req; |
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87 | char *soap_action = NULL; |
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88 | url_t url; |
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89 | |
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90 | soap_req->build_request( soap_req ); |
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91 | |
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92 | if( soap_req->action ) |
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93 | soap_action = g_strdup_printf( "SOAPAction: \"%s\"\r\n", soap_req->action ); |
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94 | |
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95 | url_set( &url, soap_req->url ); |
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96 | http_req = g_strdup_printf( SOAP_HTTP_REQUEST, url.file, url.host, |
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97 | soap_action ? soap_action : "", |
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98 | strlen( soap_req->payload ), soap_req->payload ); |
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99 | |
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100 | soap_req->http_req = http_dorequest( url.host, url.port, url.proto == PROTO_HTTPS, |
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101 | http_req, msn_soap_handle_response, soap_req ); |
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102 | |
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103 | g_free( http_req ); |
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104 | g_free( soap_action ); |
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105 | |
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106 | return soap_req->http_req != NULL; |
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107 | } |
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108 | |
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109 | static void msn_soap_handle_response( struct http_request *http_req ) |
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110 | { |
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111 | struct msn_soap_req_data *soap_req = http_req->data; |
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112 | int st; |
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113 | |
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114 | if( http_req->body_size > 0 ) |
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115 | { |
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116 | struct xt_parser *parser; |
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117 | |
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118 | parser = xt_new( soap_req->xml_parser, soap_req ); |
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119 | xt_feed( parser, http_req->reply_body, http_req->body_size ); |
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120 | xt_handle( parser, NULL, -1 ); |
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121 | xt_free( parser ); |
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122 | } |
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123 | |
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124 | st = soap_req->handle_response( soap_req ); |
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125 | |
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126 | g_free( soap_req->url ); |
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127 | g_free( soap_req->action ); |
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128 | g_free( soap_req->payload ); |
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129 | soap_req->url = soap_req->action = soap_req->payload = NULL; |
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130 | |
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131 | if( st == MSN_SOAP_RETRY && --soap_req->ttl ) |
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132 | msn_soap_send_request( soap_req ); |
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133 | else |
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134 | { |
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135 | soap_req->free_data( soap_req ); |
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136 | g_free( soap_req ); |
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137 | } |
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138 | } |
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139 | |
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140 | |
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141 | /* passport_sso: Authentication MSNP15+ */ |
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142 | |
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143 | struct msn_soap_passport_sso_data |
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144 | { |
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145 | char *policy; |
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146 | char *nonce; |
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147 | char *secret; |
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148 | }; |
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149 | |
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150 | static int msn_soap_passport_sso_build_request( struct msn_soap_req_data *soap_req ) |
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151 | { |
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152 | struct msn_soap_passport_sso_data *sd = soap_req->data; |
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153 | struct im_connection *ic = soap_req->ic; |
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154 | |
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155 | soap_req->url = g_strdup( SOAP_PASSPORT_SSO_URL ); |
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156 | soap_req->payload = g_markup_printf_escaped( SOAP_PASSPORT_SSO_PAYLOAD, |
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157 | ic->acc->user, ic->acc->pass, sd->policy ); |
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158 | |
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159 | return MSN_SOAP_OK; |
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160 | } |
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161 | |
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162 | static xt_status msn_soap_passport_sso_token( struct xt_node *node, gpointer data ) |
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163 | { |
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164 | struct msn_soap_req_data *soap_req = data; |
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165 | struct msn_soap_passport_sso_data *sd = soap_req->data; |
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166 | struct msn_data *md = soap_req->ic->proto_data; |
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167 | struct xt_node *p; |
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168 | char *id; |
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169 | |
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170 | if( ( id = xt_find_attr( node, "Id" ) ) == NULL ) |
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171 | return XT_HANDLED; |
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172 | id += strlen( id ) - 1; |
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173 | if( *id == '1' && |
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174 | ( p = node->parent ) && ( p = p->parent ) && |
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175 | ( p = xt_find_node( p->children, "wst:RequestedProofToken" ) ) && |
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176 | ( p = xt_find_node( p->children, "wst:BinarySecret" ) ) && |
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177 | p->text ) |
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178 | sd->secret = g_strdup( p->text ); |
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179 | |
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180 | if( *id == '1' ) |
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181 | md->tokens[0] = g_strdup( node->text ); |
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182 | else if( *id == '2' ) |
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183 | md->tokens[1] = g_strdup( node->text ); |
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184 | |
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185 | return XT_HANDLED; |
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186 | } |
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187 | |
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188 | static const struct xt_handler_entry msn_soap_passport_sso_parser[] = { |
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189 | { "wsse:BinarySecurityToken", "wst:RequestedSecurityToken", msn_soap_passport_sso_token }, |
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190 | { NULL, NULL, NULL } |
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191 | }; |
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192 | |
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193 | static char *msn_key_fuckery( char *key, int key_len, char *type ) |
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194 | { |
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195 | unsigned char hash1[20+strlen(type)+1]; |
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196 | unsigned char hash2[20]; |
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197 | char *ret; |
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198 | |
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199 | sha1_hmac( key, key_len, type, 0, hash1 ); |
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200 | strcpy( (char*) hash1 + 20, type ); |
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201 | sha1_hmac( key, key_len, (char*) hash1, sizeof( hash1 ) - 1, hash2 ); |
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202 | |
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203 | /* This is okay as hash1 is read completely before it's overwritten. */ |
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204 | sha1_hmac( key, key_len, (char*) hash1, 20, hash1 ); |
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205 | sha1_hmac( key, key_len, (char*) hash1, sizeof( hash1 ) - 1, hash1 ); |
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206 | |
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207 | ret = g_malloc( 24 ); |
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208 | memcpy( ret, hash2, 20 ); |
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209 | memcpy( ret + 20, hash1, 4 ); |
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210 | return ret; |
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211 | } |
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212 | |
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213 | static int msn_soap_passport_sso_handle_response( struct msn_soap_req_data *soap_req ) |
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214 | { |
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215 | struct msn_soap_passport_sso_data *sd = soap_req->data; |
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216 | struct im_connection *ic = soap_req->ic; |
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217 | char *key1, *key2, *key3, *blurb64; |
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218 | int key1_len; |
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219 | unsigned char *padnonce, *des3res; |
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220 | struct |
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221 | { |
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222 | unsigned int uStructHeaderSize; // 28. Does not count data |
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223 | unsigned int uCryptMode; // CRYPT_MODE_CBC (1) |
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224 | unsigned int uCipherType; // TripleDES (0x6603) |
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225 | unsigned int uHashType; // SHA1 (0x8004) |
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226 | unsigned int uIVLen; // 8 |
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227 | unsigned int uHashLen; // 20 |
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228 | unsigned int uCipherLen; // 72 |
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229 | unsigned char iv[8]; |
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230 | unsigned char hash[20]; |
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231 | unsigned char cipherbytes[72]; |
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232 | } blurb = { |
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233 | GUINT32_TO_LE( 28 ), |
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234 | GUINT32_TO_LE( 1 ), |
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235 | GUINT32_TO_LE( 0x6603 ), |
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236 | GUINT32_TO_LE( 0x8004 ), |
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237 | GUINT32_TO_LE( 8 ), |
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238 | GUINT32_TO_LE( 20 ), |
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239 | GUINT32_TO_LE( 72 ), |
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240 | }; |
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241 | |
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242 | key1_len = base64_decode( sd->secret, (unsigned char**) &key1 ); |
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243 | |
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244 | key2 = msn_key_fuckery( key1, key1_len, "WS-SecureConversationSESSION KEY HASH" ); |
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245 | key3 = msn_key_fuckery( key1, key1_len, "WS-SecureConversationSESSION KEY ENCRYPTION" ); |
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246 | |
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247 | sha1_hmac( key2, 24, sd->nonce, 0, blurb.hash ); |
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248 | padnonce = g_malloc( strlen( sd->nonce ) + 8 ); |
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249 | strcpy( (char*) padnonce, sd->nonce ); |
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250 | memset( padnonce + strlen( sd->nonce ), 8, 8 ); |
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251 | |
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252 | random_bytes( blurb.iv, 8 ); |
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253 | |
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254 | ssl_des3_encrypt( (unsigned char*) key3, 24, padnonce, strlen( sd->nonce ) + 8, blurb.iv, &des3res ); |
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255 | memcpy( blurb.cipherbytes, des3res, 72 ); |
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256 | |
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257 | blurb64 = base64_encode( (unsigned char*) &blurb, sizeof( blurb ) ); |
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258 | msn_auth_got_passport_token( ic, blurb64 ); |
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259 | |
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260 | g_free( padnonce ); |
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261 | g_free( blurb64 ); |
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262 | g_free( des3res ); |
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263 | g_free( key1 ); |
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264 | g_free( key2 ); |
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265 | g_free( key3 ); |
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266 | |
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267 | return MSN_SOAP_OK; |
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268 | } |
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269 | |
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270 | static int msn_soap_passport_sso_free_data( struct msn_soap_req_data *soap_req ) |
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271 | { |
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272 | struct msn_soap_passport_sso_data *sd = soap_req->data; |
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273 | |
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274 | g_free( sd->policy ); |
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275 | g_free( sd->nonce ); |
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276 | g_free( sd->secret ); |
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277 | |
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278 | return MSN_SOAP_OK; |
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279 | } |
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280 | |
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281 | int msn_soap_passport_sso_request( struct im_connection *ic, const char *policy, const char *nonce ) |
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282 | { |
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283 | struct msn_soap_passport_sso_data *sd = g_new0( struct msn_soap_passport_sso_data, 1 ); |
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284 | |
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285 | sd->policy = g_strdup( policy ); |
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286 | sd->nonce = g_strdup( nonce ); |
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287 | |
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288 | return msn_soap_start( ic, sd, msn_soap_passport_sso_build_request, |
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289 | msn_soap_passport_sso_parser, |
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290 | msn_soap_passport_sso_handle_response, |
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291 | msn_soap_passport_sso_free_data ); |
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292 | } |
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293 | |
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294 | |
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295 | /* oim_send: Sending offline messages */ |
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296 | |
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297 | struct msn_soap_oim_send_data |
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298 | { |
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299 | char *to; |
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300 | char *msg; |
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301 | int number; |
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302 | int need_retry; |
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303 | }; |
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304 | |
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305 | static int msn_soap_oim_build_request( struct msn_soap_req_data *soap_req ) |
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306 | { |
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307 | struct msn_soap_oim_send_data *oim = soap_req->data; |
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308 | struct im_connection *ic = soap_req->ic; |
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309 | struct msn_data *md = ic->proto_data; |
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310 | char *display_name_b64; |
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311 | |
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312 | display_name_b64 = tobase64( ic->displayname ); |
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313 | |
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314 | soap_req->url = g_strdup( SOAP_OIM_SEND_URL ); |
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315 | soap_req->action = g_strdup( SOAP_OIM_SEND_ACTION ); |
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316 | soap_req->payload = g_markup_printf_escaped( SOAP_OIM_SEND_PAYLOAD, |
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317 | ic->acc->user, display_name_b64, oim->to, "bla", //md->passport_token, |
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318 | MSNP11_PROD_ID, md->lock_key ? md->lock_key : "", |
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319 | oim->number, oim->number, oim->msg ); |
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320 | |
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321 | g_free( display_name_b64 ); |
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322 | |
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323 | return MSN_SOAP_OK; |
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324 | } |
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325 | |
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326 | static xt_status msn_soap_oim_send_challenge( struct xt_node *node, gpointer data ) |
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327 | { |
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328 | struct msn_soap_req_data *soap_req = data; |
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329 | struct msn_soap_oim_send_data *oim = soap_req->data; |
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330 | struct im_connection *ic = soap_req->ic; |
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331 | struct msn_data *md = ic->proto_data; |
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332 | |
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333 | g_free( md->lock_key ); |
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334 | md->lock_key = msn_p11_challenge( node->text ); |
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335 | |
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336 | oim->need_retry = 1; |
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337 | |
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338 | return XT_HANDLED; |
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339 | } |
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340 | |
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341 | static const struct xt_handler_entry msn_soap_oim_send_parser[] = { |
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342 | { "LockKeyChallenge", "detail", msn_soap_oim_send_challenge }, |
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343 | { NULL, NULL, NULL } |
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344 | }; |
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345 | |
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346 | static int msn_soap_oim_handle_response( struct msn_soap_req_data *soap_req ) |
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347 | { |
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348 | struct msn_soap_oim_send_data *oim = soap_req->data; |
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349 | |
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350 | if( soap_req->http_req->status_code == 500 && oim->need_retry && soap_req->ttl > 0 ) |
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351 | { |
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352 | oim->need_retry = 0; |
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353 | return MSN_SOAP_RETRY; |
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354 | } |
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355 | else if( soap_req->http_req->status_code == 200 ) |
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356 | { |
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357 | imcb_log( soap_req->ic, "Offline message successfully delivered to %s", oim->to ); |
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358 | return MSN_SOAP_OK; |
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359 | } |
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360 | else |
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361 | { |
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362 | imcb_log( soap_req->ic, "Failed to deliver offline message to %s:\n%s", oim->to, oim->msg ); |
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363 | return MSN_SOAP_ABORT; |
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364 | } |
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365 | } |
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366 | |
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367 | static int msn_soap_oim_free_data( struct msn_soap_req_data *soap_req ) |
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368 | { |
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369 | struct msn_soap_oim_send_data *oim = soap_req->data; |
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370 | |
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371 | g_free( oim->to ); |
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372 | g_free( oim->msg ); |
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373 | g_free( oim ); |
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374 | |
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375 | return MSN_SOAP_OK; |
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376 | } |
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377 | |
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378 | int msn_soap_oim_send( struct im_connection *ic, const char *to, const char *msg ) |
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379 | { |
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380 | struct msn_soap_oim_send_data *data; |
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381 | |
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382 | data = g_new0( struct msn_soap_oim_send_data, 1 ); |
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383 | data->to = g_strdup( to ); |
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384 | data->msg = tobase64( msg ); |
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385 | data->number = 1; |
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386 | |
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387 | return msn_soap_start( ic, data, msn_soap_oim_build_request, |
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388 | msn_soap_oim_send_parser, |
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389 | msn_soap_oim_handle_response, |
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390 | msn_soap_oim_free_data ); |
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391 | } |
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392 | |
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393 | int msn_soap_oim_send_queue( struct im_connection *ic, GSList **msgq ) |
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394 | { |
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395 | GSList *l; |
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396 | char *n = NULL; |
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397 | |
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398 | for( l = *msgq; l; l = l->next ) |
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399 | { |
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400 | struct msn_message *m = l->data; |
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401 | |
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402 | if( n == NULL ) |
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403 | n = m->who; |
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404 | if( strcmp( n, m->who ) == 0 ) |
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405 | msn_soap_oim_send( ic, m->who, m->text ); |
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406 | } |
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407 | |
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408 | while( *msgq != NULL ) |
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409 | { |
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410 | struct msn_message *m = (*msgq)->data; |
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411 | |
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412 | g_free( m->who ); |
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413 | g_free( m->text ); |
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414 | g_free( m ); |
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415 | |
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416 | *msgq = g_slist_remove( *msgq, m ); |
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417 | } |
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418 | |
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419 | return 1; |
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420 | } |
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421 | |
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422 | |
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423 | /* memlist: Fetching the membership list (NOT address book) */ |
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424 | |
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425 | #if 0 |
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426 | struct msn_soap_oim_send_data |
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427 | { |
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428 | char *to; |
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429 | char *msg; |
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430 | int number; |
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431 | int need_retry; |
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432 | }; |
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433 | #endif |
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434 | |
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435 | static int msn_soap_memlist_build_request( struct msn_soap_req_data *soap_req ) |
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436 | { |
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437 | soap_req->url = g_strdup( SOAP_MEMLIST_URL ); |
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438 | soap_req->action = g_strdup( SOAP_MEMLIST_ACTION ); |
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439 | soap_req->payload = g_strdup( SOAP_MEMLIST_PAYLOAD ); |
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440 | |
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441 | return 1; |
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442 | } |
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443 | |
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444 | static const struct xt_handler_entry msn_soap_memlist_parser[] = { |
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445 | { NULL, NULL, NULL } |
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446 | }; |
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447 | |
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448 | static int msn_soap_memlist_handle_response( struct msn_soap_req_data *soap_req ) |
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449 | { |
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450 | return 0; |
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451 | } |
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452 | |
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453 | static int msn_soap_memlist_free_data( struct msn_soap_req_data *soap_req ) |
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454 | { |
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455 | return 0; |
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456 | } |
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457 | |
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458 | int msn_soap_memlist_request( struct im_connection *ic ) |
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459 | { |
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460 | return msn_soap_start( ic, NULL, msn_soap_memlist_build_request, |
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461 | msn_soap_memlist_parser, |
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462 | msn_soap_memlist_handle_response, |
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463 | msn_soap_memlist_free_data ); |
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464 | } |
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