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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 #include <sys/types.h> |
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8 #include <sys/socket.h> |
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9 #include <sys/select.h> |
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10 |
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11 #include "list.h" |
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12 #include "parsecfg.h" |
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13 #include "screen.h" |
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14 #include "socket.h" |
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15 #include "utf8.h" |
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16 #include "server.h" |
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17 #include "harddefines.h" |
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18 #include "utils.h" |
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19 #include "buddies.h" |
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20 |
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21 #define JABBERPORT 5222 |
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22 |
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23 /* Desc: poll data from server |
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24 * |
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25 * In : socket |
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26 * Out : pending buffer (or NULL if no incoming data) |
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27 * |
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28 * Note: it is up to the caller to free the returned string |
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29 */ |
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30 char *srv_poll(int sock) |
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31 { |
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32 struct pollfd sock_p; |
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33 sock_p.fd = sock; |
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34 sock_p.events = (short int) (POLLIN | POLLPRI); |
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35 sock_p.revents = 0; |
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36 poll(&sock_p, 1, 0); |
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37 |
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38 if (sock_p.revents) { |
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39 return sk_recv(sock); |
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40 } |
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41 |
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42 return NULL; |
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43 } |
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44 |
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45 |
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46 /* Desc: resolve host |
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47 * |
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48 * In : hostname |
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49 * Out : 32bit address (or 0 if error) |
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50 * |
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51 * Note: - |
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52 */ |
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53 static u_long srv_resolve(const char *host) |
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54 { |
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55 in_addr_t i; |
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56 struct hostent *he; |
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57 |
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58 if ((i = inet_addr(host)) == INADDR_NONE) { |
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59 if (!(he = gethostbyname(host))) |
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60 return 0; |
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61 else |
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62 return (*(u_long *) he->h_addr); // XXX Memory leak |
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63 } |
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64 |
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65 return (u_long) i; |
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66 } |
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67 |
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68 |
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69 /* Desc: connect to jabber server |
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70 * |
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71 * In : config |
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72 * Out : socket (or -1 on error) |
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73 * |
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74 * Note: if port is -1, the default Jabber port will be used |
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75 */ |
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76 int srv_connect(const char *server, unsigned int port) |
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77 { |
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78 struct sockaddr_in name; |
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79 int sock; |
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80 |
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81 if (server == NULL) { |
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82 fprintf(stderr, "You must supply a server name\n\r"); |
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83 return -1; |
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84 } |
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85 |
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86 if (port == -1U) { |
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87 port = JABBERPORT; |
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88 } |
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89 |
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90 name.sin_family = AF_INET; |
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91 name.sin_port = htons(port); |
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92 |
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93 if (!(name.sin_addr.s_addr = srv_resolve(server))) { |
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94 fprintf(stderr, "Cant resolve \"%s\"\n", server); |
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95 return -1; |
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96 } |
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97 |
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98 if ((sock = sk_conn((struct sockaddr *) &name)) < 0) { |
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99 fprintf(stderr, "Can't connect to \"%s:%u\"\n", server, port); |
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100 return -1; |
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101 } |
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102 |
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103 return sock; |
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104 } |
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105 |
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106 |
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107 /* Desc: login into jabber server |
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108 * |
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109 * In : socket, servername, user, password, resource |
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110 * Out : idsession |
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111 * |
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112 * Note: it is up to the caller to free the returned string |
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113 */ |
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114 char *srv_login(int sock, const char *server, const char *user, |
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115 const char *pass, const char *resource) |
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116 { |
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117 char *stringtosend = malloc(2048); |
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118 char *response, *aux; |
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119 char *idsession = calloc(64, sizeof(char)); |
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120 int pos = 0; |
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121 |
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122 memset(stringtosend, 0, 2048); |
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123 strcpy(stringtosend, "<?xml version='1.0' encoding='UTF-8' ?>"); |
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124 strcat(stringtosend, "<stream:stream to='"); |
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125 strcat(stringtosend, server); |
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126 strcat(stringtosend, "' xmlns='jabber:client' xmlns:stream='"); |
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127 strcat(stringtosend, "http://etherx.jabber.org/streams'>\n"); |
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128 |
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129 if (!sk_send(sock, stringtosend)) { |
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130 perror("senddata (server.c:132)"); |
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131 free(stringtosend); |
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132 free(idsession); |
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133 return NULL; |
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134 } |
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135 response = sk_recv(sock); |
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136 if (strstr(response, "error")) { |
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137 /* fprintf(stderr, "Response not valid:\n%s\n\n", response); */ |
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138 scr_CreatePopup("Error", |
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139 "Bad answer from the server", 60, 0, NULL); |
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140 free(response); |
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141 free(idsession); |
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142 free(stringtosend); |
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143 return NULL; |
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144 } |
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145 aux = response; |
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146 while (strncmp(aux, "id", 2)) |
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147 aux++; |
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148 pos = 0; |
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149 aux += 4; |
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150 while (strncmp(aux, "'", 1)) { |
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151 aux++; |
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152 pos++; |
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153 } |
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154 aux -= pos; |
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155 if (pos > 64-1) { |
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156 ut_WriteLog("Bad session ID!\n"); |
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157 free(response); |
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158 free(idsession); |
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159 free(stringtosend); |
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160 return NULL; |
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161 } |
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162 strncpy(idsession, aux, (size_t)pos); |
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163 |
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164 free(response); |
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165 |
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166 strcpy(stringtosend, "<iq type='set' id='1000'>"); |
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167 strcat(stringtosend, "<query xmlns='jabber:iq:auth'>"); |
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168 strcat(stringtosend, "<username>"); |
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169 strcat(stringtosend, user); |
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170 strcat(stringtosend, "</username><password>"); |
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171 strcat(stringtosend, pass); |
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172 strcat(stringtosend, "</password><resource>"); |
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173 strcat(stringtosend, resource); |
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174 strcat(stringtosend, "</resource></query></iq>\n"); |
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175 if (!sk_send(sock, stringtosend)) { |
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176 perror("senddata (server.c:167)"); |
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177 return NULL; |
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178 } |
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179 response = sk_recv(sock); |
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180 if (strstr(response, "error")) { |
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181 /* fprintf(stderr, "Response not valid:\n%s\n\n", response);*/ |
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182 scr_CreatePopup("Error", |
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183 "Account doesn't exist, or bad password", 60, 0, |
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184 NULL); |
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185 |
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186 /* |
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187 scr_CreatePopup("Info", "Trying to create the account...", 60, 0, NULL); |
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188 |
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189 strcpy(stringtosend, "<iq type='set' id='reg' to='"); |
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190 strcat(stringtosend, server); |
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191 strcat(stringtosend, "'>"); |
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192 strcat(stringtosend, "<query xmlns='jabber:iq:register'>"); |
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193 strcat(stringtosend, "<username>"); |
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194 strcat(stringtosend, user); |
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195 strcat(stringtosend, "</username><password>"); |
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196 strcat(stringtosend, pass); |
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197 strcat(stringtosend, "</password>"); |
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198 strcat(stringtosend, "</query></iq>\n"); |
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199 if (!sk_send(sock, stringtosend)) { |
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200 perror("senddata (server.c:167)"); |
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201 return NULL; |
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202 } |
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203 |
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204 response = sk_recv(sock); |
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205 */ |
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206 scr_TerminateCurses(); |
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207 /* printf("Reinicie cabber!\n\n"); */ |
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208 free(idsession); |
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209 free(stringtosend); |
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210 return NULL; |
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211 } |
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212 free(response); |
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213 free(stringtosend); |
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214 |
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215 return idsession; |
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216 } |
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217 |
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218 |
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219 /* Desc: broadcast presence |
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220 * |
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221 * In : socket, presence string |
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222 * Out : ? |
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223 * |
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224 * Note: see `sk_send' for output values |
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225 */ |
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226 int srv_setpresence(int sock, const char *type) |
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227 { |
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228 int rv; |
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229 char *str = malloc(1024); |
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230 |
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231 sprintf(str, "<presence><status>%.512s</status></presence>", type); |
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232 if (!(rv = sk_send(sock, str))) { |
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233 perror("senddata (server.c:199)"); |
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234 } |
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235 free(str); |
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236 |
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237 return rv; |
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238 } |
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239 |
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240 |
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241 /* Desc: request roster |
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242 * |
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243 * In : socket |
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244 * Out : roster string |
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245 * |
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246 * Note: it is up to the caller to free the returned string |
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247 */ |
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248 char *srv_getroster(int sock) |
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249 { |
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250 char *str = malloc(1024); |
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251 |
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252 strcpy(str, "<iq type='get' id='1001'><query xmlns='"); |
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253 strcat(str, "jabber:iq:roster'/></iq>\n"); |
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254 if (!sk_send(sock, str)) { |
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255 perror("senddata (server.c:222)"); |
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256 free(str); |
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257 return NULL; |
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258 } |
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259 free(str); |
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260 |
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261 return sk_recv(sock); |
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262 } |
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263 |
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264 |
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265 /* Desc: send text to buddy |
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266 * |
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267 * In : socket, destination jid, text, source jid |
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268 * Out : 0 = ok |
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269 * |
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270 * Note: - |
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271 */ |
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272 int |
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273 srv_sendtext(int sock, const char *to, const char *text, const char *from) |
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274 { |
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275 char *stringtosend = malloc(2048); |
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276 char *utf8inputline = utf8_encode(text); |
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277 |
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278 sprintf(stringtosend, |
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279 "<message from='%s' to='%s' type='chat'><body>%.1536s</body></message>", |
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280 from, to, utf8inputline); |
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281 if (!sk_send(sock, stringtosend)) { |
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282 perror("senddata (server.c:247)"); |
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283 free(stringtosend); |
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284 free(utf8inputline); |
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285 return -1; |
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286 } |
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287 |
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288 free(stringtosend); |
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289 free(utf8inputline); |
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290 return 0; |
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291 } |
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292 |
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293 int check_io(int fd1, int fd2) |
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294 { |
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295 int n = 0, i; |
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296 fd_set fds; |
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297 int io_pending = 0; |
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298 |
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299 i = fd1; |
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300 if (fd2 > fd1) |
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301 i = fd2; |
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302 |
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303 FD_ZERO(&fds); |
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304 if (fd1 >= 0) |
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305 FD_SET(fd1, &fds); |
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306 else |
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307 fd1 = 0; |
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308 if (fd2 >= 0) |
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309 FD_SET(fd2, &fds); |
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310 else |
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311 fd2 = 0; |
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312 |
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313 if (fd2 == 0 && io_pending) |
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314 n = 2; |
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315 else if (select(i + 1, &fds, NULL, NULL, NULL) > 0) |
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316 n = 1 * (FD_ISSET(fd1, &fds) > 0) + 2 * (FD_ISSET(fd2, &fds) > 0); |
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317 |
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318 return (n); |
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319 } |
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320 |
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321 /* Desc: read data from server |
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322 * |
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323 * In : socket |
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324 * Out : ptr to newly allocated srv_msg struct |
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325 * |
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326 * Note: returns NULL if no input from server |
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327 */ |
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328 srv_msg *readserver(int sock) |
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329 { |
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330 char *buffer = sk_recv(sock); |
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331 |
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332 if (buffer != NULL) { |
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333 srv_msg *msg = calloc(1, sizeof(srv_msg)); |
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334 char *to = getattr(buffer, "to='"); |
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335 char *from = getattr(buffer, "from='"); |
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336 char *id = getattr(buffer, "id='"); |
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337 char *type = getattr(buffer, "type='"); |
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338 char *body = gettag(buffer, "body"); |
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339 char *status = gettag(buffer, "status"); |
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340 char *show = gettag(buffer, "show"); |
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341 char *line = (char *) malloc(1024); |
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342 memset(line, 0, 1024); |
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343 |
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344 /* scan for buffer */ |
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345 if (!strncmp(buffer, "<message", 8)) { /* manage messages */ |
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346 msg->m = SM_MESSAGE; |
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347 } else if (!strncmp(buffer, "<presence", 9)) { /* manage presences */ |
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348 msg->m = SM_PRESENCE; |
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349 if (!strncmp(type, "UNK", 3)) { /* assume online */ |
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350 msg->connected = FLAG_BUDDY_CONNECTED; |
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351 } else if (!strncmp(type, "unavailable", 11)) { /* offline */ |
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352 msg->connected = 0; |
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353 } |
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354 } else { |
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355 msg->m = SM_UNHANDLED; |
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356 } |
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357 |
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358 /* write the parsed buffer */ |
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359 switch (msg->m) { |
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360 case SM_MESSAGE: |
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361 { |
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362 char *aux = strstr(from, "/"); |
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363 if (aux) |
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364 *aux = '\0'; |
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365 msg->from = from; |
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366 msg->body = utf8_decode(body); |
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367 ut_WriteLog("+OK [%s]\n", buffer); |
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368 } |
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369 break; |
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370 |
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371 case SM_PRESENCE: |
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372 { |
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373 char *aux = strstr(from, "/"); |
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374 if (aux) |
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375 *aux = '\0'; |
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376 msg->from = from; |
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377 } |
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378 break; |
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379 |
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380 case SM_UNHANDLED: |
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381 ut_WriteLog("BAD [%s]\n", buffer); |
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382 break; |
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383 |
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384 } |
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385 free(line); |
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386 if (strncmp(to, "UNK", 3)) |
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387 free(to); |
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388 if (strncmp(from, "UNK", 3) && (msg->m != SM_MESSAGE) |
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389 && (msg->m != SM_PRESENCE)) |
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390 free(from); |
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391 if (strncmp(id, "UNK", 3)) |
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392 free(id); |
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393 if (strncmp(type, "UNK", 3)) |
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394 free(type); |
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395 if (strncmp(body, "UNK", 3)) |
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396 free(body); |
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397 if (strncmp(status, "UNK", 3)) |
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398 free(status); |
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399 if (strncmp(show, "UNK", 3)) |
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400 free(show); |
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401 free(buffer); |
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402 |
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403 return msg; |
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404 } |
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405 |
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406 return NULL; |
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407 } |
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408 |
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409 void srv_AddBuddy(int sock, char *jidname) |
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410 { |
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411 char *buffer = (char *) malloc(1024); |
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412 char *p, *str; |
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413 int i; |
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414 |
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415 memset(buffer, 0, 1024); |
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416 strcpy(buffer, "<iq type='set'>"); |
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417 strcat(buffer, " <query xmlns='jabber:iq:roster'>"); |
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418 strcat(buffer, " <item"); |
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419 strcat(buffer, " jid='"); |
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420 strcat(buffer, jidname); |
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421 strcat(buffer, "' name='"); |
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422 |
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423 str = strdup(jidname); |
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424 p = strstr(str, "@"); |
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425 if (p) |
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426 *p = '\0'; |
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427 strcat(buffer, str); |
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428 strcat(buffer, "'/></query></iq>"); |
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429 sk_send(sock, buffer); |
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430 free(buffer); |
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431 |
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432 for (i = 0; i < 2; i++) { |
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433 buffer = sk_recv(sock); |
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434 ut_WriteLog("[Subscription]: %s\n", buffer); |
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435 free(buffer); |
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436 } |
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437 |
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438 buffer = (char *) malloc(1024); |
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439 memset(buffer, 0, 1024); |
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440 strcpy(buffer, "<presence to='"); |
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441 strcat(buffer, jidname); |
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442 strcat(buffer, "' type='subscribe'>"); |
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443 strcat(buffer, "<status>I would like to add you!</status></presence>"); |
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444 sk_send(sock, buffer); |
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445 free(buffer); |
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446 |
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447 buffer = sk_recv(sock); |
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448 ut_WriteLog("[Subscription]: %s\n", buffer); |
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449 free(buffer); |
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450 |
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451 buffer = (char *) malloc(1024); |
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452 memset(buffer, 0, 1024); |
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453 strcpy(buffer, "<presence to='"); |
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454 strcat(buffer, jidname); |
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455 strcat(buffer, "' type='subscribed'/>"); |
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456 sk_send(sock, buffer); |
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457 free(buffer); |
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458 |
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459 buffer = sk_recv(sock); |
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460 ut_WriteLog("[Subscription]: %s\n", buffer); |
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461 free(buffer); |
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462 } |
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463 |
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464 void srv_DelBuddy(int sock, char *jidname) |
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465 { |
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466 char *buffer = (char *) malloc(1024); |
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467 |
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468 strcpy(buffer, "<iq type='set'><query xmlns='jabber:iq:roster'>"); |
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469 strcat(buffer, "<item jid='"); |
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470 strcat(buffer, jidname); |
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471 strcat(buffer, "' subscription='remove'/></query></iq>"); |
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472 |
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473 sk_send(sock, buffer); |
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474 free(buffer); |
|
|
475 |
|
|
476 buffer = sk_recv(sock); |
|
|
477 ut_WriteLog("[SubscriptionRemove]: %s\n", buffer); |
|
|
478 free(buffer); |
|
|
479 } |
