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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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32 #include "jabglue.h" |
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33 #include "screen.h" |
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34 #include "utils.h" |
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35 |
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36 static guint UseFileLogging; |
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37 static guint FileLoadLogs; |
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38 static char *RootDir; |
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39 |
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40 |
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41 // user_histo_file() |
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42 // Returns history filename for the given jid |
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43 // Note: the caller *must* free the filename after use (if not null). |
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44 static char *user_histo_file(const char *jid) |
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45 { |
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46 char *filename; |
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47 char *lowerid, *p; |
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48 if (!UseFileLogging && !FileLoadLogs) return NULL; |
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49 |
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186
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50 lowerid = g_strdup(jid); |
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51 for (p=lowerid; *p ; p++) |
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52 *p = tolower(*p); |
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53 |
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54 filename = g_new(char, strlen(RootDir) + strlen(jid) + 1); |
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55 strcpy(filename, RootDir); |
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56 strcat(filename, lowerid); |
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57 g_free(lowerid); |
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58 return filename; |
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59 } |
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60 |
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178
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61 // write_histo_line() |
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62 // Adds a history (multi-)line to the jid's history logfile |
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63 static void write_histo_line(const char *jid, |
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64 time_t timestamp, guchar type, guchar info, const char *data) |
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65 { |
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66 guint len = 0; |
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67 FILE *fp; |
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68 time_t ts; |
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69 const char *p; |
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70 char *filename; |
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71 char str_ts[20]; |
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72 |
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73 if (!UseFileLogging) return; |
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74 |
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75 filename = user_histo_file(jid); |
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76 |
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77 // If timestamp is null, get current date |
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78 if (timestamp) |
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79 ts = timestamp; |
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80 else |
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81 time(&ts); |
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82 |
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83 if (!data) |
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84 data = ""; |
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85 |
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86 // Count number of extra lines |
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87 for (p=data ; *p ; p++) |
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88 if (*p == '\n') len++; |
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89 |
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90 /* Line format: "TI yyyymmddThh:mm:ssZ [data]" |
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91 * (Old format: "TI DDDDDDDDDD LLL [data])" |
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92 * T=Type, I=Info, yyyymmddThh:mm:ssZ=date, LLL=0-padded-len |
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93 * |
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94 * Types: |
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95 * - M message Info: S (send) R (receive) |
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96 * - S status Info: [oaifdcn] |
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97 * We don't check them, we'll trust the caller. |
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98 */ |
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99 |
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100 fp = fopen(filename, "a"); |
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101 g_free(filename); |
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102 if (!fp) return; |
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103 |
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104 to_iso8601(str_ts, ts); |
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105 fprintf(fp, "%c%c %-18.18s %03d %s\n", type, info, str_ts, len, data); |
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106 fclose(fp); |
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107 } |
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108 |
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109 // hlog_read_history() |
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110 // Reads the jid's history logfile |
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111 void hlog_read_history(const char *jid, GList **p_buddyhbuf, guint width) |
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112 { |
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113 char *filename; |
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114 guchar type, info; |
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115 char *data, *tail; |
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116 time_t timestamp; |
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117 guint prefix_flags; |
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118 guint len; |
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119 FILE *fp; |
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120 struct stat bufstat; |
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121 guint err = 0; |
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122 guint oldformat; |
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123 guint ln = 0; // line number |
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124 guint pleaseconvert = 0; |
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125 |
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126 if (!FileLoadLogs) return; |
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127 |
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128 data = g_new(char, HBB_BLOCKSIZE+32); |
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129 if (!data) { |
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130 scr_LogPrint("Not enough memory to read history file"); |
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131 return; |
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132 } |
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133 |
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134 filename = user_histo_file(jid); |
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135 |
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136 fp = fopen(filename, "r"); |
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137 g_free(filename); |
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138 if (!fp) { g_free(data); return; } |
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139 |
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140 // If file is large (> 512 here), display a message to inform the user |
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141 // (it can take a while...) |
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142 if (!fstat(fileno(fp), &bufstat)) { |
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143 if (bufstat.st_size > 524288) |
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144 scr_LogPrint("Reading <%s> history file...", jid); |
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145 } |
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146 |
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147 /* See write_histo_line() for line format... */ |
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148 while (!feof(fp)) { |
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149 int format_off = 0; |
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150 if (fgets(data, HBB_BLOCKSIZE+19+format_off, fp) == NULL) break; |
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151 ln++; |
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152 |
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153 for (tail = data; *tail; tail++) ; |
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154 |
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155 type = data[0]; |
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156 info = data[1]; |
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157 |
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158 // XXX Log format detection. We can read both old and new log formats |
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159 // To be removed in a future version |
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160 oldformat = (data[11] != 'T' || data[20] != 'Z'); |
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161 if (!oldformat) |
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162 format_off = 8; |
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163 |
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164 if ((type != 'M' && type != 'S') || |
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165 (oldformat && ((data[13] != ' ') || (data[17] != ' '))) || |
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166 ((!oldformat) && ((data[21] != ' ') || (data[25] != ' ')))) { |
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167 if (!err) { |
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168 scr_LogPrint("Error in history file format (%s), l.%u", jid, ln); |
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169 err = 1; |
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170 } |
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171 //break; |
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172 continue; |
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173 } |
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174 data[13+format_off] = data[17+format_off] = 0; |
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175 if (oldformat) |
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176 timestamp = (unsigned long) atol(&data[3]); |
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177 else |
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178 timestamp = from_iso8601(&data[3], 1); |
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179 len = (unsigned long) atol(&data[14+format_off]); |
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180 |
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181 // Some checks |
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182 if (((type == 'M') && (info != 'S' && info != 'R')) || |
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183
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183 ((type == 'I') && (!strchr("OAIFDCN", info)))) { |
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184 if (!err) { |
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185 scr_LogPrint("Error in history file format (%s), l.%u", jid, ln); |
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186 err = 1; |
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187 } |
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186
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188 //break; |
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189 continue; |
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190 } |
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191 |
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192 // XXX This will fail when a message is too big |
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193 while (len--) { |
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194 ln++; |
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195 if (fgets(tail, HBB_BLOCKSIZE+19+format_off - (tail-data), fp) == NULL) |
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196 break; |
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197 |
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198 while (*tail) tail++; |
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199 } |
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248
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200 // Small check for too long messages |
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201 if (tail >= HBB_BLOCKSIZE+18+format_off + data) { |
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202 // Maybe we will have a parse error on next, because this |
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203 // message is big (maybe too big). |
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204 scr_LogPrint("A message could be too big in history file..."); |
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205 } |
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251
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206 // Remove last CR (we keep it if the line is empty, too) |
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207 if ((tail > data+18+format_off) && (*(tail-1) == '\n')) |
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208 *(tail-1) = 0; |
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209 |
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210 if (oldformat) |
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211 pleaseconvert = 1; |
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212 |
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213 if (type == 'M') { |
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214 if (info == 'S') |
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215 prefix_flags = HBB_PREFIX_OUT; |
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216 else |
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217 prefix_flags = HBB_PREFIX_IN; |
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218 hbuf_add_line(p_buddyhbuf, &data[18+format_off], timestamp, |
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219 prefix_flags, width); |
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220 err = 0; |
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221 } |
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222 } |
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223 fclose(fp); |
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224 g_free(data); |
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225 if (pleaseconvert) |
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226 scr_LogPrint("Please convert your history files to the new format!"); |
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227 } |
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228 |
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229 // hlog_enable() |
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230 // Enable logging to files. If root_dir is NULL, then $HOME/.mcabber is used. |
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231 // If loadfiles is TRUE, we will try to load buddies history logs from file. |
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232 void hlog_enable(guint enable, char *root_dir, guint loadfiles) |
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233 { |
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234 UseFileLogging = enable; |
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235 FileLoadLogs = loadfiles; |
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236 |
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237 if (enable || loadfiles) { |
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238 if (root_dir) { |
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239 int l = strlen(root_dir); |
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240 if (l < 1) { |
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241 scr_LogPrint("root_dir too short"); |
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242 UseFileLogging = FALSE; |
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243 return; |
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244 } |
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245 // RootDir must be slash-terminated |
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246 if (root_dir[l-1] == '/') |
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247 RootDir = g_strdup(root_dir); |
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248 else { |
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249 RootDir = g_new(char, l+2); |
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250 strcpy(RootDir, root_dir); |
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251 strcat(RootDir, "/"); |
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252 } |
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253 } else { |
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254 char *home = getenv("HOME"); |
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255 char *dir = "/.mcabber/histo/"; |
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256 RootDir = g_new(char, strlen(home) + strlen(dir) + 1); |
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257 strcpy(RootDir, home); |
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258 strcat(RootDir, dir); |
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259 } |
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260 // FIXME |
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261 // We should check the directory actually exists |
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262 } else // Disable history logging |
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263 if (RootDir) { |
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264 g_free(RootDir); |
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265 } |
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266 } |
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267 |
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268 inline void hlog_write_message(const char *jid, time_t timestamp, int sent, |
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269 const char *msg) |
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270 { |
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271 write_histo_line(jid, timestamp, 'M', ((sent) ? 'S' : 'R'), msg); |
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272 } |
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273 |
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274 inline void hlog_write_status(const char *jid, time_t timestamp, |
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275 enum imstatus status, const char *status_msg) |
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276 { |
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277 // #1 XXX Check status value? |
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278 // #2 We could add a user-readable comment |
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279 write_histo_line(jid, timestamp, 'S', toupper(imstatus2char[status]), |
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280 status_msg); |
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281 } |
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282 |
