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1 #include <arpa/inet.h> |
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2 #include <netdb.h> |
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3 #include <stdio.h> |
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4 #include <stdlib.h> |
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5 #include <string.h> |
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6 #include <sys/poll.h> |
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7 |
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8 #include "list.h" |
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9 #include "parsecfg.h" |
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10 #include "screen.h" |
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11 #include "socket.h" |
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12 #include "utf8.h" |
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13 #include "server.h" |
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14 #include "harddefines.h" |
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15 #include "utils.h" |
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16 #include "buddies.h" |
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17 |
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18 #define JABBERPORT 5222 |
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19 |
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20 |
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21 /* Desc: poll data from server |
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22 * |
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23 * In : socket |
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24 * Out : pending buffer (or NULL if no incoming data) |
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25 * |
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26 * Note: it is up to the caller to free the returned string |
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27 */ |
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28 char *srv_poll(int sock) |
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29 { |
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30 struct pollfd sock_p; |
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31 sock_p.fd = sock; |
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32 sock_p.events = POLLIN | POLLPRI; |
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33 sock_p.revents = 0; |
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34 poll(&sock_p, 1, 0); |
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35 |
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36 if (sock_p.revents) { |
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37 return sk_recv(sock); |
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38 } |
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39 |
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40 return NULL; |
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41 } |
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42 |
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43 |
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44 /* Desc: resolve host |
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45 * |
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46 * In : hostname |
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47 * Out : 32bit address (or 0 if error) |
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48 * |
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49 * Note: - |
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50 */ |
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51 static u_long srv_resolve(const char *host) |
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52 { |
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53 long i; |
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54 struct hostent *he; |
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55 |
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56 if ((i = inet_addr(host)) == -1) { |
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57 if (!(he = gethostbyname(host))) |
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58 return 0; |
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59 else |
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60 return (*(u_long *) he->h_addr); |
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61 } |
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62 |
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63 return i; |
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64 } |
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65 |
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66 |
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67 /* Desc: connect to jabber server |
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68 * |
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69 * In : config |
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70 * Out : socket (or -1 on error) |
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71 * |
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72 * Note: if port is -1, the default Jabber port will be used |
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73 */ |
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74 int srv_connect(const char *server, unsigned int port) |
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75 { |
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76 struct sockaddr_in name; |
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77 int sock; |
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78 |
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79 if (server == NULL) { |
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80 fprintf(stderr, "You must supply a server name\n\r"); |
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81 return -1; |
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82 } |
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83 |
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84 if (port == -1U) { |
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85 port = JABBERPORT; |
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86 } |
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87 |
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88 name.sin_family = AF_INET; |
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89 name.sin_port = htons(port); |
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90 |
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91 if (!(name.sin_addr.s_addr = srv_resolve(server))) { |
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92 fprintf(stderr, "Cant resolve \"%s\"\n", server); |
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93 return -1; |
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94 } |
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95 |
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96 if ((sock = sk_conn((struct sockaddr *) &name)) < 0) { |
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97 fprintf(stderr, "Cant connect to \"%s:%u\"\n", server, port); |
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98 return -1; |
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99 } |
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100 |
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101 return sock; |
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102 } |
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103 |
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104 |
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105 /* Desc: login into jabber server |
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106 * |
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107 * In : socket, servername, user, password, resource |
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108 * Out : idsession |
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109 * |
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110 * Note: it is up to the caller to free the returned string |
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111 */ |
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112 char *srv_login(int sock, const char *server, const char *user, |
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113 const char *pass, const char *resource) |
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114 { |
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115 char *stringtosend = malloc(2048); |
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116 char *response, *aux; |
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117 char *idsession = malloc(128); |
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118 int pos = 0; |
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119 |
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120 memset(stringtosend, 0, 2048); |
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121 strcpy(stringtosend, "<?xml version='1.0' encoding='UTF-8' ?>"); |
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122 strcat(stringtosend, "<stream:stream to='"); |
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123 strcat(stringtosend, server); |
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124 strcat(stringtosend, "' xmlns='jabber:client' xmlns:stream='"); |
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125 strcat(stringtosend, "http://etherx.jabber.org/streams'>\n"); |
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126 |
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127 if (!sk_send(sock, stringtosend)) { |
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128 perror("senddata (server.c:132)"); |
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129 return NULL; |
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130 } |
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131 response = sk_recv(sock); |
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132 if (strstr(response, "error")) { |
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133 /* fprintf(stderr, "Response not valid:\n%s\n\n", response); */ |
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134 scr_CreatePopup("Error", |
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135 "El servidor no esta respondiendo correctamente", |
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136 60, 0, NULL); |
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137 return NULL; |
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138 } |
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139 aux = response; |
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140 while (strncmp(aux, "id", 2)) |
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141 aux++; |
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142 pos = 0; |
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143 aux += 4; |
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144 while (strncmp(aux, "'", 1)) { |
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145 aux++; |
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146 pos++; |
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147 } |
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148 aux -= pos; |
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149 strncpy(idsession, aux, pos); |
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150 |
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151 free(response); |
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152 |
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153 strcpy(stringtosend, "<iq type='set' id='1000'>"); |
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154 strcat(stringtosend, "<query xmlns='jabber:iq:auth'>"); |
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155 strcat(stringtosend, "<username>"); |
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156 strcat(stringtosend, user); |
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157 strcat(stringtosend, "</username><password>"); |
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158 strcat(stringtosend, pass); |
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159 strcat(stringtosend, "</password><resource>"); |
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160 strcat(stringtosend, resource); |
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161 strcat(stringtosend, "</resource></query></iq>\n"); |
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162 if (!sk_send(sock, stringtosend)) { |
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163 perror("senddata (server.c:167)"); |
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164 return NULL; |
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165 } |
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166 response = sk_recv(sock); |
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167 if (strstr(response, "error")) { |
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168 /* fprintf(stderr, "Response not valid:\n%s\n\n", response);*/ |
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169 scr_CreatePopup("Error", |
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170 "Cuenta no creada o contrase�a incorrecta", 60, 0, |
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171 NULL); |
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172 scr_CreatePopup("Info", "Intentando crear la cuenta...", 60, 0, NULL); |
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173 |
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174 |
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175 strcpy(stringtosend, "<iq type='set' id='reg' to='"); |
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176 strcat(stringtosend, server); |
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177 strcat(stringtosend, "'>"); |
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178 strcat(stringtosend, "<query xmlns='jabber:iq:register'>"); |
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179 strcat(stringtosend, "<username>"); |
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180 strcat(stringtosend, user); |
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181 strcat(stringtosend, "</username><password>"); |
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182 strcat(stringtosend, pass); |
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183 strcat(stringtosend, "</password>"); |
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184 strcat(stringtosend, "</query></iq>\n"); |
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185 if (!sk_send(sock, stringtosend)) { |
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186 perror("senddata (server.c:167)"); |
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187 return NULL; |
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188 } |
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189 |
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190 response = sk_recv(sock); |
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191 scr_TerminateCurses(); |
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192 printf("Reinicie cabber!\n\n"); |
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193 return NULL; |
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194 } |
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195 free(response); |
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196 free(stringtosend); |
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197 |
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198 return idsession; |
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199 } |
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200 |
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201 |
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202 /* Desc: broadcast presence |
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203 * |
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204 * In : socket, presence string |
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205 * Out : ? |
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206 * |
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207 * Note: see `sk_send' for output values |
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208 */ |
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209 int srv_setpresence(int sock, const char *type) |
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210 { |
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211 int rv; |
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212 char *str = malloc(1024); |
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213 |
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214 sprintf(str, "<presence><status>%s</status></presence>", type); |
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215 if (!(rv = sk_send(sock, str))) { |
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216 perror("senddata (server.c:199)"); |
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217 } |
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218 free(str); |
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219 |
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220 return rv; |
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221 } |
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222 |
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223 |
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224 /* Desc: request roster |
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225 * |
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226 * In : socket |
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227 * Out : roster string |
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228 * |
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229 * Note: it is up to the caller to free the returned string |
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230 */ |
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231 char *srv_getroster(int sock) |
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232 { |
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233 char *str = malloc(1024); |
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234 |
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235 strcpy(str, "<iq type='get' id='1001'><query xmlns='"); |
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236 strcat(str, "jabber:iq:roster'/></iq>\n"); |
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237 if (!sk_send(sock, str)) { |
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238 perror("senddata (server.c:222)"); |
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239 return NULL; |
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240 } |
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241 free(str); |
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242 |
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243 return sk_recv(sock); |
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244 } |
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245 |
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246 |
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247 /* Desc: send text to buddy |
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248 * |
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249 * In : socket, destination jid, text, source jid |
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250 * Out : 0 = ok |
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251 * |
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252 * Note: - |
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253 */ |
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254 int |
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255 srv_sendtext(int sock, const char *to, const char *text, const char *from) |
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256 { |
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257 char *stringtosend = malloc(2048); |
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258 char *utf8inputline = utf8_encode(text); |
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259 |
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260 sprintf(stringtosend, |
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261 "<message from='%s' to='%s' type='chat'><body>%s</body></message>", |
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262 from, to, utf8inputline); |
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263 if (!sk_send(sock, stringtosend)) { |
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264 perror("senddata (server.c:247)"); |
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265 return -1; |
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266 } |
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267 |
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268 free(stringtosend); |
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269 free(utf8inputline); |
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270 return 0; |
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271 } |
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272 |
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273 int check_io(int fd1, int fd2) |
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274 { |
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275 int n = 0, i; |
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276 fd_set fds; |
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277 int io_pending = 0; |
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278 |
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279 i = fd1; |
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280 if (fd2 > fd1) |
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281 i = fd2; |
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282 |
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283 FD_ZERO(&fds); |
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284 if (fd1 >= 0) |
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285 FD_SET(fd1, &fds); |
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286 else |
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287 fd1 = 0; |
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288 if (fd2 >= 0) |
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289 FD_SET(fd2, &fds); |
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290 else |
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291 fd2 = 0; |
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292 |
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293 if (fd2 == 0 && io_pending) |
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294 n = 2; |
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295 else if (select(i + 1, &fds, NULL, NULL, NULL) > 0) |
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296 n = 1 * (FD_ISSET(fd1, &fds) > 0) + 2 * (FD_ISSET(fd2, &fds) > 0); |
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297 |
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298 return (n); |
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299 } |
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300 |
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301 /* Desc: read data from server |
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302 * |
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303 * In : socket |
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304 * Out : ptr to newly allocated srv_msg struct |
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305 * |
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306 * Note: returns NULL if no input from server |
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307 */ |
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308 srv_msg *readserver(int sock) |
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309 { |
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310 char *buffer = sk_recv(sock); |
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311 |
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312 if (buffer != NULL) { |
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313 srv_msg *msg = calloc(1, sizeof(srv_msg)); |
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314 char *to = getattr(buffer, "to='"); |
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315 char *from = getattr(buffer, "from='"); |
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316 char *id = getattr(buffer, "id='"); |
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317 char *type = getattr(buffer, "type='"); |
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318 char *body = gettag(buffer, "body"); |
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319 char *status = gettag(buffer, "status"); |
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320 char *show = gettag(buffer, "show"); |
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321 char *line = (char *) malloc(1024); |
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322 memset(line, 0, 1024); |
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323 |
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324 /* scan for buffer */ |
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325 if (!strncmp(buffer, "<message", 8)) { /* manage messages */ |
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326 msg->m = SM_MESSAGE; |
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327 } else if (!strncmp(buffer, "<presence", 9)) { /* manage presences */ |
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328 msg->m = SM_PRESENCE; |
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329 if (!strncmp(type, "UNK", 3)) { /* assume online */ |
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330 msg->connected = FLAG_BUDDY_CONNECTED; |
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331 } else if (!strncmp(type, "unavailable", 11)) { /* offline */ |
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332 msg->connected = 0; |
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333 } |
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334 } else { |
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335 msg->m = SM_UNHANDLED; |
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336 } |
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337 |
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338 /* write the parsed buffer */ |
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339 switch (msg->m) { |
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340 case SM_MESSAGE: |
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341 { |
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342 char *aux = strstr(from, "/"); |
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343 if (aux) |
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344 *aux = '\0'; |
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345 msg->from = from; |
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346 msg->body = utf8_decode(body); |
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347 ut_WriteLog("+OK [%s]\n", buffer); |
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348 } |
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349 break; |
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350 |
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351 case SM_PRESENCE: |
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352 { |
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353 char *aux = strstr(from, "/"); |
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354 if (aux) |
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355 *aux = '\0'; |
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356 msg->from = from; |
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357 } |
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358 break; |
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359 |
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360 case SM_UNHANDLED: |
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361 ut_WriteLog("BAD [%s]\n", buffer); |
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362 break; |
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363 |
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364 } |
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365 free(line); |
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366 if (strncmp(to, "UNK", 3)) |
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367 free(to); |
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368 if (strncmp(from, "UNK", 3) && (msg->m != SM_MESSAGE) |
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369 && (msg->m != SM_PRESENCE)) |
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370 free(from); |
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371 if (strncmp(id, "UNK", 3)) |
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372 free(id); |
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373 if (strncmp(type, "UNK", 3)) |
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374 free(type); |
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375 if (strncmp(body, "UNK", 3)) |
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376 free(body); |
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377 if (strncmp(status, "UNK", 3)) |
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378 free(status); |
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379 if (strncmp(show, "UNK", 3)) |
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380 free(show); |
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381 free(buffer); |
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382 |
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383 return msg; |
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384 } |
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385 |
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386 return NULL; |
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387 } |
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388 |
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389 void srv_AddBuddy(int sock, char *jidname) |
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390 { |
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391 char *buffer = (char *) malloc(1024); |
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392 char *p, *str; |
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393 int i; |
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394 |
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395 memset(buffer, 0, 1024); |
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396 strcpy(buffer, "<iq type='set'>"); |
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397 strcat(buffer, " <query xmlns='jabber:iq:roster'>"); |
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398 strcat(buffer, " <item"); |
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399 strcat(buffer, " jid='"); |
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400 strcat(buffer, jidname); |
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401 strcat(buffer, "' name='"); |
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402 |
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403 str = strdup(jidname); |
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404 p = strstr(str, "@"); |
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405 if (p) |
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406 *p = '\0'; |
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407 strcat(buffer, str); |
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408 strcat(buffer, "'/></query></iq>"); |
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409 sk_send(sock, buffer); |
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410 free(buffer); |
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411 |
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412 for (i = 0; i < 2; i++) { |
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413 buffer = sk_recv(sock); |
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414 ut_WriteLog("[Subscription]: %s\n", buffer); |
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415 free(buffer); |
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416 } |
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417 |
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418 buffer = (char *) malloc(1024); |
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419 memset(buffer, 0, 1024); |
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420 strcpy(buffer, "<presence to='"); |
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421 strcat(buffer, jidname); |
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422 strcat(buffer, "' type='subscribe'>"); |
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423 strcat(buffer, "<status>I would like to add you!</status></presence>"); |
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424 sk_send(sock, buffer); |
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425 free(buffer); |
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426 |
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427 buffer = sk_recv(sock); |
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428 ut_WriteLog("[Subscription]: %s\n", buffer); |
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429 free(buffer); |
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430 |
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431 buffer = (char *) malloc(1024); |
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432 memset(buffer, 0, 1024); |
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433 strcpy(buffer, "<presence to='"); |
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434 strcat(buffer, jidname); |
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435 strcat(buffer, "' type='subscribed'/>"); |
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436 sk_send(sock, buffer); |
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437 free(buffer); |
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438 |
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439 buffer = sk_recv(sock); |
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440 ut_WriteLog("[Subscription]: %s\n", buffer); |
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441 free(buffer); |
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442 } |
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443 |
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444 void srv_DelBuddy(int sock, char *jidname) |
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445 { |
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446 char *buffer = (char *) malloc(1024); |
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447 |
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448 strcpy(buffer, "<iq type='set'><query xmlns='jabber:iq:roster'>"); |
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449 strcat(buffer, "<item jid='"); |
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450 strcat(buffer, jidname); |
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451 strcat(buffer, "' subscription='remove'/></query></iq>"); |
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452 |
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453 sk_send(sock, buffer); |
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454 free(buffer); |
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455 |
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456 buffer = sk_recv(sock); |
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457 ut_WriteLog("[SubscriptionRemove]: %s\n", buffer); |
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458 free(buffer); |
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459 } |
