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1 /*
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2 * histolog.c -- File history handling
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3 *
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4 * Copyright (C) 2005 Mikael Berthe <bmikael@lists.lilotux.net>
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or (at
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9 * your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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19 * USA
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20 */
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21
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22 #include <string.h>
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23 #include <stdlib.h>
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24 #include <time.h>
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25 #include <ctype.h>
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26 #include <sys/types.h>
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27 #include <sys/stat.h>
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28 #include <fcntl.h>
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29
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30 #include "histolog.h"
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178
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31 #include "hbuf.h"
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113
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32 #include "jabglue.h"
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110
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33 #include "screen.h"
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34
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35 static guint UseFileLogging;
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36 static guint FileLoadLogs;
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37 static char *RootDir;
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38
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39
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40 // user_histo_file()
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41 // Returns history filename for the given jid
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42 // Note: the caller *must* free the filename after use (if not null).
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43 static char *user_histo_file(const char *jid)
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44 {
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45 char *filename;
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46 if (!UseFileLogging && !FileLoadLogs) return NULL;
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47
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48 filename = g_new(char, strlen(RootDir) + strlen(jid) + 1);
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49 strcpy(filename, RootDir);
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50 strcat(filename, jid);
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51 return filename;
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52 }
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53
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178
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54 // write_histo_line()
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55 // Adds a history (multi-)line to the jid's history logfile
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56 static void write_histo_line(const char *jid,
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57 time_t timestamp, guchar type, guchar info, const char *data)
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58 {
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59 guint len = 0;
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60 FILE *fp;
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61 time_t ts;
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62 const char *p;
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63 char *filename;
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64
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65 if (!UseFileLogging) return;
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66
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67 filename = user_histo_file(jid);
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68
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69 // If timestamp is null, get current date
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70 if (timestamp)
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71 ts = timestamp;
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72 else
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73 time(&ts);
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74
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75 if (!data)
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76 data = "";
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77
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78 // Count number of extra lines
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79 for (p=data ; *p ; p++)
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80 if (*p == '\n') len++;
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81
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118
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82 /* Line format: "TI DDDDDDDDDD LLL [data]"
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83 * T=Type, I=Info, DDDDDDDDDD=date, LLL=0-padded-len
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84 *
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85 * Types:
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86 * - M message Info: S (send) R (receive)
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87 * - S status Info: [oaifdcn]
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88 * We don't check them, we'll trust the caller.
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89 */
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90
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91 fp = fopen(filename, "a");
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92 g_free(filename);
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93 if (!fp) return;
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94
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95 fprintf(fp, "%c%c %10u %03d %s\n", type, info, (unsigned int)ts, len, data);
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96 fclose(fp);
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97 }
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98
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178
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99 // hlog_read_history()
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100 // Reads the jid's history logfile
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101 void hlog_read_history(const char *jid, GList **p_buddyhbuf, guint width)
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102 {
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103 char *filename;
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104 time_t timestamp;
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105 guchar type, info;
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106 char *data, *tail;
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107 guint len;
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108 FILE *fp;
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109 char prefix[32];
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110
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111 if (!FileLoadLogs) return;
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112
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113 data = g_new(char, HBB_BLOCKSIZE+32);
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114 if (!data) {
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115 scr_LogPrint("Not enough memory to read history file");
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116 return;
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117 }
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118
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119 filename = user_histo_file(jid);
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120
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121 fp = fopen(filename, "r");
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122 g_free(filename);
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123 if (!fp) { g_free(data); return; }
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124
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125 /* See write_histo_line() for line format... */
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126 while (!feof(fp)) {
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127 if (fgets(data, HBB_BLOCKSIZE+24, fp) == NULL) break;
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128
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129 for (tail = data; *tail; tail++) ;
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130
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131 type = data[0];
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132 info = data[1];
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133 if ((type != 'M' && type != 'S') ||
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134 (data[13] != ' ') || (data[17] != ' ')) {
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135 scr_LogPrint("Error in history file format");
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136 break;
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137 }
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138 data[13] = data[17] = 0;
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139 timestamp = (unsigned long) atol(&data[3]);
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140 len = (unsigned long) atol(&data[14]);
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141
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142 // Some checks
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143 if (((type == 'M') && (info != 'S' && info != 'R')) ||
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144 ((type == 'I') && (!strchr("oaifdcn", info)))) {
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145 scr_LogPrint("Error in history file format");
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146 break;
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147 }
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148
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149 while (len--) {
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150 if (fgets(tail, HBB_BLOCKSIZE+24 - (tail-data), fp) == NULL) break;
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151
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152 while (*tail) tail++;
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153 }
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154 if ((tail > data+18) && (*(tail-1) == '\n'))
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155 *(tail-1) = 0;
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156
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157 if (type == 'M') {
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158 strftime(prefix, 12, "[%H:%M] ", localtime(×tamp));
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159 if (info == 'S')
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160 strcat(prefix, "--> ");
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161 else
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162 strcat(prefix, "<== ");
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163 hbuf_add_line(p_buddyhbuf, &data[18], prefix, width);
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164 }
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165 }
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166 fclose(fp);
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167 g_free(data);
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168 }
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169
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170 // hlog_enable()
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171 // Enable logging to files. If root_dir is NULL, then $HOME/.mcabber is used.
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172 // If loadfiles is TRUE, we will try to load buddies history logs from file.
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173 void hlog_enable(guint enable, char *root_dir, guint loadfiles)
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174 {
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175 UseFileLogging = enable;
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176 FileLoadLogs = loadfiles;
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177
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177
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178 if (enable || loadfiles) {
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179 if (root_dir) {
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180 int l = strlen(root_dir);
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181 if (l < 1) {
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182 scr_LogPrint("root_dir too short");
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183 UseFileLogging = FALSE;
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184 return;
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185 }
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186 // RootDir must be slash-terminated
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187 if (root_dir[l-1] == '/')
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188 RootDir = g_strdup(root_dir);
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189 else {
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190 RootDir = g_new(char, l+2);
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191 strcpy(RootDir, root_dir);
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192 strcat(RootDir, "/");
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193 }
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194 } else {
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195 char *home = getenv("HOME");
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196 char *dir = "/.mcabber/histo/";
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197 RootDir = g_new(char, strlen(home) + strlen(dir) + 1);
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198 strcpy(RootDir, home);
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199 strcat(RootDir, dir);
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200 }
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201 // FIXME
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202 // We should check the directory actually exists
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203 } else // Disable history logging
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204 if (RootDir) {
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205 g_free(RootDir);
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206 }
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207 }
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208
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209 inline void hlog_write_message(const char *jid, time_t timestamp, int sent,
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210 const char *msg)
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211 {
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212 write_histo_line(jid, timestamp, 'M', ((sent) ? 'S' : 'R'), msg);
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213 }
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214
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215 inline void hlog_write_status(const char *jid, time_t timestamp,
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216 enum imstatus status)
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217 {
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218 // #1 XXX Check status value?
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219 // #2 We could add a user-readable comment
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220 write_histo_line(jid, timestamp, 'S', toupper(imstatus2char[status]),
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221 NULL);
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222 }
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223
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