1 /* |
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2 * ============================================================================ |
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3 * Name : isofetchcontactlist.h |
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4 * Part of : isolation server. |
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5 * Version : %version: 17 % |
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6 * |
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7 * Copyright © 2007-2008 Nokia. All rights reserved. |
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8 * All rights reserved. |
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9 * Redistribution and use in source and binary forms, with or without modification, |
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10 * are permitted provided that the following conditions are met: |
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11 * Redistributions of source code must retain the above copyright notice, this list |
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12 * of conditions and the following disclaimer.Redistributions in binary form must |
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13 * reproduce the above copyright notice, this list of conditions and the following |
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14 * disclaimer in the documentation and/or other materials provided with the distribution. |
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15 * Neither the name of the Nokia Corporation nor the names of its contributors may be used |
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16 * to endorse or promote products derived from this software without specific prior written |
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17 * permission. |
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18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY |
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19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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21 * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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23 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 * ============================================================================ |
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28 * Template version: 1.0 |
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29 */ |
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30 |
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31 |
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32 #include <stdio.h> |
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33 #include <stdlib.h> |
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34 #include <string.h> |
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35 #include <signal.h> |
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36 |
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37 #include <dbus/dbus-glib.h> |
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38 #include <glib.h> |
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39 |
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40 #include "isofetchcontactlist.h" |
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41 #include "isoutils.h" |
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42 #include "msg_enums.h" |
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43 #include "msgliterals.h" |
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44 |
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45 const guint KMaxContactFetchCount = 500; |
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46 |
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47 static guint cur_mem_len; |
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48 static guint local_mem_len; |
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49 static guint remote_mem_len; |
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50 |
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51 static gint cur_last_index = 0; |
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52 static gint local_last_index = 0; |
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53 static gint remote_last_index = 0; |
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54 |
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55 |
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56 /*! \brief This function is called as a callback to get the contact names from |
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57 * contact handles. Contact names are sent to client in multiple packets of |
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58 * size MAX_MSG_SIZE |
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59 * |
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60 * \param proxy unused |
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61 * \param handles_names 2D array of contact names |
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62 * \param error error if any |
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63 * \param userdata msg_type |
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64 */ |
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65 static void inspect_handles_cb( DBusGProxy *proxy,char **handles_names, |
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66 GError *error, gpointer userdata ) |
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67 { |
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68 guint i; |
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69 gint err = 0; |
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70 gint* msg_type = ( gint* ) userdata; |
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71 |
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72 gchar** members = NULL; |
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73 guint* mem_count = 0; |
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74 gint* last_index = NULL; |
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75 |
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76 |
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77 iso_logger( "%s", "in -- inspect_handles_cb" ); |
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78 |
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79 if ( !handles_names || error ) |
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80 { |
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81 //Handles error |
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82 iso_logger( "%s", "handle names error" ); |
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83 free ( msg_type ); |
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84 g_error_free(error); |
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85 return; |
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86 } |
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87 UNUSED_FORMAL_PARAM(proxy); |
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88 //Switch to the type of the message |
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89 //and get corresponding pointers to members and pointer to last index |
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90 switch ( *msg_type ) |
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91 { |
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92 case ECurrent_Member_Contacts: |
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93 members = globalCon.current_members_names; |
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94 mem_count = &cur_mem_len; |
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95 last_index = &cur_last_index; |
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96 iso_logger( "%s count %d", "current members", mem_count ); |
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97 break; |
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98 case ELocal_Pending_Contacts: |
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99 members = globalCon.local_pending_names; |
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100 mem_count = &local_mem_len; |
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101 last_index = &local_last_index; |
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102 iso_logger( "%s count %d", "local members", mem_count ); |
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103 break; |
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104 case ERemote_Pending_Contacts: |
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105 members = globalCon.remote_pending_names; |
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106 mem_count = &remote_mem_len; |
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107 last_index = &remote_last_index; |
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108 iso_logger( "%s count %d", "remote members", mem_count ); |
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109 break; |
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110 |
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111 default : |
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112 //Error in msg_type |
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113 //Wrong message type |
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114 //quit from here |
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115 free ( msg_type ); |
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116 return; |
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117 } |
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118 |
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119 |
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120 //Add the contacts to the global member |
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121 for( i=0; handles_names[i]; i++ ) |
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122 { |
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123 iso_logger( "members %s ",handles_names[i] ); |
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124 members[*last_index] = handles_names[i]; |
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125 (*last_index)++; |
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126 } |
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127 |
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128 iso_logger( "last index is %d", *last_index ); |
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129 //If all the contacts are fetched send them to client |
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130 if ( *mem_count == *last_index ) |
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131 { |
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132 //send all contacts to client |
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133 err = send_contacts_to_client( members, *mem_count, *msg_type ); |
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134 *last_index = 0; |
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135 if ( err ) |
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136 { |
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137 //How to handle the error? |
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138 for ( i = 0; i < *mem_count; i++ ) |
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139 { |
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140 free ( members[i] ); |
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141 } |
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142 iso_logger( "%s", "There was error in send_contacts_to_client" ); |
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143 free ( msg_type ); |
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144 *mem_count = 0; |
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145 return; |
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146 } |
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147 *mem_count = 0; |
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148 |
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149 } |
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150 free ( msg_type ); |
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151 iso_logger( "%s", "out -- inspect_handles_cb" ); |
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152 } |
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153 |
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154 /*! \brief This function is called if there are 0 contacts or there was an error |
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155 * |
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156 * \param contact_type : Type of the contacts |
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157 * \param err : err if any, 0 otherwise |
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158 */ |
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159 static gint send_fetch_contacts_error( gint contact_type , gint err ) |
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160 { |
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161 |
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162 int result = 0; |
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163 int pri = MSG_PRI_NORMAL; |
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164 int timeout1 = TIME_OUT; |
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165 message_hdr_resp* msg_struct = NULL; |
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166 //control is here coz.. there are no contacts in list |
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167 |
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168 msg_struct = ( message_hdr_resp* ) malloc ( sizeof( message_hdr_resp ) ); |
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169 if ( NULL == msg_struct ) |
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170 { |
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171 return MEM_ALLOCATION_ERROR; |
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172 } |
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173 //initalize memory to zero |
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174 memset( msg_struct, '\0', sizeof( message_hdr_resp ) ); |
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175 //create the header response |
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176 msg_struct->hdr_req.message_type = contact_type; |
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177 msg_struct->hdr_req.protocol_id = 0; |
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178 msg_struct->hdr_req.session_id = 0; |
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179 msg_struct->hdr_req.request_id = 0; |
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180 //Set error types and continue flag |
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181 if ( err < 0 ) |
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182 { |
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183 //There was some error, pass on the mapped error |
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184 //to client |
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185 msg_struct->error_type = err; |
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186 msg_struct->response = 0; |
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187 } |
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188 else |
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189 { |
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190 msg_struct->error_type = 0; |
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191 msg_struct->response = 1; |
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192 } |
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193 msg_struct->continue_flag = 0; |
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194 //send the message to client that there are no contacts in the list |
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195 result = MsgQSend( RESPONSE_QUEUE, ( char* )msg_struct, sizeof( message_hdr_resp ), |
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196 pri, timeout1, &err ); |
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197 |
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198 free ( msg_struct ); |
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199 |
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200 if ( result < 0 ) |
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201 { |
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202 // failed to deliever |
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203 return MSG_Q_SEND_FAILED; |
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204 } |
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205 return 0; |
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206 } |
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207 |
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208 /*! \brief This function is a callback for request for the contacts |
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209 * in local pending contatct list from server. This is |
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210 * only called for publish channel members. fetch_contacts is called |
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211 * to get the contact names from the handles. If there are no conatcts in |
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212 * the list it calls send_fetch_contacts_error else requests for the contact names |
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213 * from the contact handles |
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214 * |
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215 * \param proxy unused |
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216 * \param current_members array of handles of current contatcs |
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217 * \param local_pending_members unused |
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218 * \param remote_pending_members array of handles of remote pending contatcs |
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219 * \param error error if any |
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220 * \param userdata unused |
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221 */ |
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222 static void get_roster_local_member_cb( DBusGProxy *proxy,GArray* current_members, |
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223 GArray* local_pending_members, GArray* remote_pending_members, |
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224 GError *error, gpointer userdata ) |
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225 { |
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226 |
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227 gint err = 0; |
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228 gint* msg_type = ( gint* ) malloc ( sizeof ( gint ) ); |
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229 |
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230 iso_logger( "%s", "in -- get_roster_member_cb_local" ); |
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231 UNUSED_FORMAL_PARAM(proxy); |
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232 UNUSED_FORMAL_PARAM(remote_pending_members); |
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233 UNUSED_FORMAL_PARAM(userdata); |
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234 UNUSED_FORMAL_PARAM(current_members); |
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235 if ( NULL != error ) |
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236 { |
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237 //err in fetching contacts, send failed |
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238 //map the error code to isoserver |
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239 err = error->code; |
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240 //Send that there are no contacts in the local pending |
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241 send_fetch_contacts_error( EFetch_Contacts_Error, err ); |
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242 return; |
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243 } |
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244 //store the no. of lccal pending contacts |
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245 local_mem_len = local_pending_members->len; |
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246 |
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247 if ( !local_last_index && local_mem_len ) |
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248 { |
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249 //Is this the first time to be here.. |
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250 //allocate memory |
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251 globalCon.local_pending_names = g_new0 ( char *, local_mem_len + 1); |
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252 if ( NULL == globalCon.local_pending_names ) |
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253 { |
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254 return ; |
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255 //err? |
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256 } |
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257 } |
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258 //ownership of this pointer is trnasfered to fetch_contacts |
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259 *msg_type = ELocal_Pending_Contacts; |
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260 //Fetch the contacts given the handles |
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261 err = fetch_contacts( local_pending_members, msg_type ); |
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262 if ( err < 0 ) |
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263 { |
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264 return; |
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265 } |
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266 |
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267 iso_logger( "%s", "out -- get_roster_member_cb_local" ); |
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268 } |
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269 |
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270 /*! \brief Requests the server to get contact names from the handles |
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271 * The contact names are returned in inspect_handles_cb. From there |
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272 * contacts are sent to client |
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273 * |
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274 * \param contact_mem : handles to contact members |
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275 * \param msg_type : type of the message, which wil be passed to cb |
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276 * \return Errors if any, else 0 |
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277 */ |
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278 static gint fetch_contacts( GArray* contact_mem, gint* msg_type ) |
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279 { |
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280 |
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281 guint fetch_count=0; |
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282 guint fetch_loop_count=0; |
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283 GArray* fetch_members = NULL; |
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284 |
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285 DBusGProxyCall* call_id = NULL; |
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286 TpConn* conn = globalCon.conn; |
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287 |
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288 gint i = 0; |
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289 |
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290 //allocate memory for the contacts to be fetched |
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291 fetch_members = g_array_new (FALSE, FALSE, sizeof (guint32)); |
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292 if ( NULL == fetch_members ) |
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293 { |
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294 free ( msg_type ); |
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295 return MEM_ALLOCATION_ERROR; |
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296 //err? |
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297 } |
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298 |
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299 //check if there are contacts to be retrived |
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300 if ( contact_mem && contact_mem->len > 0 ) |
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301 { |
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302 |
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303 fetch_count = 0; |
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304 |
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305 //Divide contacts into a 'n' no. of groups .. n is calculated as below.. |
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306 fetch_loop_count = ( contact_mem->len ) / KMaxContactFetchCount + ( |
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307 ( contact_mem->len % KMaxContactFetchCount ) ? 1 : 0 ); |
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308 |
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309 //Get the contacts in terms of fetch_count |
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310 for ( i=0; i<fetch_loop_count; i++ ) |
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311 { |
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312 g_array_remove_range( fetch_members,0,fetch_count); |
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313 |
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314 fetch_count = ( contact_mem->len <= KMaxContactFetchCount ) |
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315 ? contact_mem->len : KMaxContactFetchCount; |
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316 //Fetch the contacts |
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317 g_array_append_vals (fetch_members,contact_mem->data,fetch_count); |
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318 g_array_remove_range(contact_mem,0,fetch_count); |
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319 //For the given handles contacts will be fetched in inspect_handles_cb |
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320 call_id = tp_conn_inspect_handles_async( DBUS_G_PROXY(conn), |
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321 TP_CONN_HANDLE_TYPE_CONTACT ,fetch_members, |
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322 inspect_handles_cb, msg_type ); |
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323 //If call_id is null return from here.. |
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324 if ( NULL == call_id ) |
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325 { |
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326 free ( msg_type ); |
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327 g_array_free( fetch_members, TRUE ); |
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328 return MEM_ALLOCATION_ERROR; |
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329 } |
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330 |
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331 } |
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332 } |
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333 else if ( contact_mem && contact_mem->len == 0 ) |
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334 { |
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335 gint err = 0; |
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336 //There are no contacts for this type(cur or local or remote) of contacts |
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337 //Send that to client |
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338 err = send_fetch_contacts_error( *msg_type, 0 ); |
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339 free ( msg_type ); |
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340 if ( err < 0 ) |
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341 { |
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342 //Free the msg_type.. Ownership was transfered to this function |
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343 |
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344 g_array_free( fetch_members, TRUE ); |
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345 return err; |
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346 } |
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347 |
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348 } |
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349 //msg_type is either freed in else part or is freed in inspect_handles_cb |
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350 //no need to free here |
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351 g_array_free( fetch_members, TRUE ); |
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352 //Should the fetch_contacts be deleted? |
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353 return 0; |
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354 } |
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355 |
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356 /*! \brief This function is a callback for request for the contacts |
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357 * in msg_type(subscribe or publish) contatct list from server. This is |
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358 * only called for subscribe channel members. fetch_contacts is called |
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359 * to get the contact names from the handles. If there are no conatcts in |
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360 * the list it calls send_fetch_contacts_error else requests for the contacts |
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361 * from the handles |
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362 * |
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363 * \param proxy unused |
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364 * \param current_members array of handles of current contatcs |
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365 * \param local_pending_members unused |
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366 * \param remote_pending_members array of handles of remote pending contatcs |
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367 * \param error error if any |
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368 * \param userdata unused |
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369 */ |
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370 static void get_roster_member_cb( DBusGProxy *proxy,GArray* current_members, |
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371 GArray* local_pending_members, GArray* remote_pending_members, |
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372 GError *error, gpointer userdata ) |
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373 { |
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374 |
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375 int err = 0; |
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376 |
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377 guint j = 0; |
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378 |
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379 iso_logger( "%s", "in -- get_roster_member_cb" ); |
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380 UNUSED_FORMAL_PARAM(proxy); |
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381 UNUSED_FORMAL_PARAM(userdata); |
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382 UNUSED_FORMAL_PARAM(local_pending_members); |
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383 if ( NULL != error ) |
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384 { |
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385 //err in fetching contacts, send failed |
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386 //map the error code to isoserver |
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387 err = error->code; |
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388 send_fetch_contacts_error( EFetch_Contacts_Error, err ); |
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389 return; |
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390 } |
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391 //store the no. of current members |
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392 cur_mem_len = current_members->len; |
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393 //store the no. of remote members |
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394 remote_mem_len = remote_pending_members->len; |
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395 |
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396 |
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397 if ( !cur_last_index && cur_mem_len ) |
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398 { |
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399 //Is this the first time to be here.. |
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400 //allocate memory |
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401 globalCon.current_members_names = g_new0 ( char *, cur_mem_len + 1); |
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402 if ( NULL == globalCon.current_members_names ) |
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403 { |
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404 return ; |
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405 //err? |
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406 } |
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407 } |
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408 |
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409 if ( !remote_last_index && remote_mem_len ) |
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410 { |
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411 //Is this the first time to be here.. |
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412 //allocate memory |
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413 globalCon.remote_pending_names = g_new0 ( char *, remote_mem_len + 1); |
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414 if ( NULL == globalCon.remote_pending_names ) |
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415 { |
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416 return ; |
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417 //err? |
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418 } |
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419 } |
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420 |
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421 |
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422 //loop thru : 2 for current and remote |
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423 for ( j = 0; j < 2; j++ ) |
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424 { |
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425 //This msg_type is sent to inspect_handles_cb |
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426 //Where it wil be deleeted |
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427 gint* msg_type = ( gint* ) malloc ( sizeof ( gint ) ); |
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428 GArray* contact_mem = NULL; |
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429 switch ( j ) |
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430 { |
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431 |
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432 case 0 : |
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433 //ask for the current members first |
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434 *msg_type = ECurrent_Member_Contacts; |
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435 contact_mem = current_members; |
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436 break; |
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437 |
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438 case 1 : |
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439 //ask for remote pending contacts |
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440 *msg_type = ERemote_Pending_Contacts; |
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441 contact_mem = remote_pending_members; |
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442 break; |
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443 |
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444 default: |
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445 break; |
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446 } |
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447 //Fetch the contacts given the handles |
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448 //ownership of msg_type is transfered to fetch_contacts |
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449 err = fetch_contacts( contact_mem, msg_type ); |
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450 if ( err < 0 ) |
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451 { |
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452 //There was some error |
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453 //return from here |
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454 return; |
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455 } |
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456 |
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457 } |
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458 |
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459 iso_logger( "%s","out -- get_roster_member_cb" ); |
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460 } |
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461 |
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462 |
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463 /*! \brief this function requests for the contacts in its contatct list from server |
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464 * |
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465 * \param type of the contacts channel( publish, subscribe ) |
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466 */ |
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467 void request_roster( enum channel_type type ) |
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468 { |
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469 |
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470 DBusGProxyCall* call_id = NULL; |
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471 |
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472 |
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473 iso_logger( "%s", "in -- request_roster" ); |
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474 |
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475 //With the interface get the contacts |
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476 //Request for all of the contacts in subscribe channel( remote and current |
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477 //members ) |
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478 if ( ESubscribe_Channel == type ) |
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479 { |
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480 call_id = tp_chan_iface_group_get_all_members_async( globalCon.group_iface_subscribe, |
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481 get_roster_member_cb, NULL ); |
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482 //If call_id is NULL return from here.. |
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483 if ( NULL == call_id ) |
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484 { |
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485 return ; |
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486 } |
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487 } |
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488 else if ( EPublish_Channel == type ) |
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489 { |
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490 //Request for all of the contacts in publish channel |
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491 call_id = tp_chan_iface_group_get_all_members_async( globalCon.group_iface_publish, |
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492 get_roster_local_member_cb, NULL ); |
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493 //If call_id is NULL return from here.. |
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494 if ( NULL == call_id ) |
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495 { |
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496 return ; |
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497 } |
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498 } |
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499 |
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500 iso_logger( "%s", "out -- request_roster" ); |
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501 } |
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502 |
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503 /*! \brief Sends contacts to the client. Contact names are sent to client in multiple |
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504 * packets of size less than or equal to MAX_MSG_SIZE. Contact will be sent as a whole. |
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505 * A single contact will not be sent in two consecutive packets |
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506 * |
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507 * \param members : Contacts to be sent to client |
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508 * \param mem_count : no. of contacts |
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509 * \param contact_type : type of the contact |
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510 * \return error code.. |
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511 */ |
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512 gint send_contacts_to_client( gchar** members, gint mem_count, |
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513 gint contact_type ) |
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514 { |
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515 int result = 0; |
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516 int pri = MSG_PRI_NORMAL; |
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517 int timeout1 = TIME_OUT; |
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518 int err = 0; |
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519 |
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520 char* memBuf = NULL; |
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521 int i = 0; |
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522 int one_msg_size = sizeof ( message_hdr_resp ); |
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523 int mem_len = 0; |
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524 message_hdr_resp* msg_struct = NULL; |
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525 |
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526 iso_logger( "%s", "in -- send_contacts_to_client" ); |
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527 |
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528 //allocate memory and check for the returned value |
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529 msg_struct = ( message_hdr_resp* ) malloc ( sizeof( message_hdr_resp ) ); |
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530 if ( NULL == msg_struct ) |
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531 { |
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532 return MEM_ALLOCATION_ERROR; |
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533 } |
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534 |
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535 memBuf = ( gchar* ) malloc( MAX_MSG_SIZE ); |
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536 if ( NULL == memBuf ) |
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537 { |
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538 // ? |
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539 free ( msg_struct ); |
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540 return MEM_ALLOCATION_ERROR; |
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541 } |
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542 |
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543 memset( msg_struct, '\0', sizeof( message_hdr_resp ) ); |
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544 //create the response header with type contact fetch |
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545 msg_struct->hdr_req.message_type = contact_type; |
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546 msg_struct->hdr_req.protocol_id = 0; |
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547 msg_struct->hdr_req.session_id = 0; |
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548 msg_struct->hdr_req.request_id = 0; |
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549 |
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550 memset( memBuf, '\0', MAX_MSG_SIZE ); |
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551 //sending the req to server |
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552 |
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553 //assuming that one contact size will not be |
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554 //greater than max_msg_size |
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555 for ( i = 0; i <= mem_count - 1; i++ ) |
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556 { |
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557 mem_len = strlen ( members[i] ) + 1; |
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558 //check if this contact fits in the current message |
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559 //to be sent to client |
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560 //one_msg_size is used to navigate thru' the buffer |
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561 if ( one_msg_size + mem_len < MAX_MSG_SIZE ) |
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562 { |
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563 strcpy( memBuf + one_msg_size, members[i] ); |
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564 one_msg_size += mem_len; |
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565 //if i == mem_count - 1 no need to continue |
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566 //Control should fall off(i.e., contacts fit in |
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567 //this message ) |
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568 if ( i < mem_count - 1 ) |
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569 { |
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570 continue; |
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571 } |
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572 //If falling off mem_len should be reset because |
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573 //it has been already added to one_msg_size |
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574 mem_len = 0; |
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575 } |
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576 msg_struct->error_type = 0; |
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577 msg_struct->response = 1; |
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578 //if i == mem_count - 1 and all contacts fits in this message |
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579 //to be sent to server |
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580 if ( i == mem_count - 1 && one_msg_size + mem_len < MAX_MSG_SIZE ) |
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581 { |
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582 msg_struct->continue_flag = 0; |
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583 } |
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584 else |
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585 { |
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586 msg_struct->continue_flag = 1; |
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587 } |
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588 if ( i == mem_count - 1 && one_msg_size + mem_len > MAX_MSG_SIZE ) |
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589 { |
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590 //One more contact is there (in which case i == mem_count - 1)) |
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591 //And that can't be sent because of limitation of |
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592 //message size.. |
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593 //so iterate one more time |
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594 i--; |
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595 } |
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596 //Append '\0' to mark the end.. |
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597 one_msg_size++; |
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598 *( memBuf + one_msg_size ) = '\0'; |
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599 memcpy( memBuf, msg_struct, sizeof( message_hdr_resp ) ); |
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600 //send to the client |
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601 result = MsgQSend( RESPONSE_QUEUE, memBuf, one_msg_size, pri, |
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602 timeout1, &err ); |
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603 |
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604 |
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605 if ( result < 0 ) |
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606 { |
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607 free ( memBuf ); |
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608 iso_logger( "%s", "in -- send_contacts_to_client MSG_Q_SEND_FAILED" ); |
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609 // failed to deliever |
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610 //free the allocated memory |
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611 free ( msg_struct ); |
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612 |
|
613 return MSG_Q_SEND_FAILED; |
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614 } |
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615 |
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616 memset( memBuf , '\0', MAX_MSG_SIZE ); |
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617 //reset the one_msg_size for new message to be sent |
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618 one_msg_size = sizeof ( message_hdr_resp ); |
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619 |
|
620 } |
|
621 //free the buffer |
|
622 free ( memBuf ); |
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623 |
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624 free ( msg_struct ); |
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625 //Should the members be freed here? |
|
626 for ( i = 0; i < mem_count; i++ ) |
|
627 { |
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628 iso_logger( "freeing contact %s", members[i] ); |
|
629 free ( members[i] ); |
|
630 } |
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631 iso_logger( "%s", "out -- send_contacts_to_client" ); |
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632 |
|
633 return 0; |
|
634 } |
|
635 |
|
636 /*! \brief Documented in the header file |
|
637 */ |
|
638 void fetch_cached_contacts() |
|
639 { |
|
640 |
|
641 request_roster( EPublish_Channel ); |
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642 request_roster( ESubscribe_Channel ); |
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643 |
|
644 } |
|