Mercurial > ~mikael > mcabber > hg
annotate mcabber/src/histolog.c @ 1436:6fb141142388
Improve reading of history files
Handle larger messages in history log files.
| author | Mikael Berthe <mikael@lilotux.net> |
|---|---|
| date | Sun, 24 Feb 2008 17:46:13 +0100 |
| parents | 366ef500c522 |
| children | 071c8170b7de |
| rev | line source |
|---|---|
| 110 | 1 /* |
| 699 | 2 * histolog.c -- File history handling |
|
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3 * |
| 1414 | 4 * Copyright (C) 2005-2008 Mikael Berthe <mikael@lilotux.net> |
| 110 | 5 * |
| 6 * This program is free software; you can redistribute it and/or modify | |
| 7 * it under the terms of the GNU General Public License as published by | |
| 8 * the Free Software Foundation; either version 2 of the License, or (at | |
| 9 * your option) any later version. | |
| 10 * | |
| 11 * This program is distributed in the hope that it will be useful, but | |
| 12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License | |
| 17 * along with this program; if not, write to the Free Software | |
| 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
| 19 * USA | |
| 20 */ | |
| 21 | |
| 22 #include <string.h> | |
| 23 #include <stdlib.h> | |
| 24 #include <time.h> | |
| 113 | 25 #include <ctype.h> |
| 26 #include <sys/types.h> | |
| 27 #include <sys/stat.h> | |
| 28 #include <fcntl.h> | |
| 110 | 29 |
| 30 #include "histolog.h" | |
| 178 | 31 #include "hbuf.h" |
| 113 | 32 #include "jabglue.h" |
| 241 | 33 #include "utils.h" |
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34 #include "logprint.h" |
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35 #include "settings.h" |
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36 #include "utils.h" |
| 110 | 37 |
| 38 static guint UseFileLogging; | |
| 177 | 39 static guint FileLoadLogs; |
| 110 | 40 static char *RootDir; |
| 41 | |
| 42 | |
| 1058 | 43 // user_histo_file(jid) |
| 110 | 44 // Returns history filename for the given jid |
| 45 // Note: the caller *must* free the filename after use (if not null). | |
| 1058 | 46 static char *user_histo_file(const char *bjid) |
| 110 | 47 { |
| 48 char *filename; | |
| 1106 | 49 char *lowerid; |
| 50 | |
| 51 if (!(UseFileLogging || FileLoadLogs)) | |
| 52 return NULL; | |
| 110 | 53 |
| 1058 | 54 lowerid = g_strdup(bjid); |
| 1106 | 55 if (!lowerid) |
| 56 return NULL; | |
| 57 mc_strtolower(lowerid); | |
| 186 | 58 |
| 1106 | 59 filename = g_strdup_printf("%s%s", RootDir, lowerid); |
| 186 | 60 g_free(lowerid); |
| 110 | 61 return filename; |
| 62 } | |
| 63 | |
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64 char *hlog_get_log_jid(const char *bjid) |
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65 { |
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66 struct stat bufstat; |
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67 char *path; |
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68 char *log_jid = NULL; |
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69 |
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70 path = user_histo_file(bjid); |
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71 do { |
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72 if (lstat(path, &bufstat) != 0) |
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73 break; |
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74 if (S_ISLNK(bufstat.st_mode)) { |
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75 g_free(log_jid); |
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76 log_jid = g_new(char, bufstat.st_size+1); |
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77 readlink(path, log_jid, bufstat.st_size); |
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78 g_free(path); |
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79 log_jid[bufstat.st_size] = '\0'; |
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80 path = user_histo_file(log_jid); |
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81 } else { |
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82 g_free(path); |
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83 path = NULL; |
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84 } |
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85 } while( path ); |
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86 |
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87 return log_jid; |
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88 } |
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89 |
| 178 | 90 // write_histo_line() |
| 110 | 91 // Adds a history (multi-)line to the jid's history logfile |
| 1058 | 92 static void write_histo_line(const char *bjid, |
| 113 | 93 time_t timestamp, guchar type, guchar info, const char *data) |
| 110 | 94 { |
| 95 guint len = 0; | |
| 113 | 96 FILE *fp; |
| 110 | 97 time_t ts; |
| 113 | 98 const char *p; |
| 178 | 99 char *filename; |
| 241 | 100 char str_ts[20]; |
| 273 | 101 int err; |
| 110 | 102 |
| 1106 | 103 if (!UseFileLogging) |
| 104 return; | |
| 178 | 105 |
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106 // Do not log status messages when 'logging_ignore_status' is set |
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107 if (type == 'S' && settings_opt_get_int("logging_ignore_status")) |
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108 return; |
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109 |
| 1058 | 110 filename = user_histo_file(bjid); |
| 110 | 111 |
| 112 // If timestamp is null, get current date | |
| 113 if (timestamp) | |
| 114 ts = timestamp; | |
| 115 else | |
| 116 time(&ts); | |
| 117 | |
| 118 if (!data) | |
| 119 data = ""; | |
| 120 | |
| 121 // Count number of extra lines | |
| 122 for (p=data ; *p ; p++) | |
| 123 if (*p == '\n') len++; | |
| 124 | |
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125 /* Line format: "TI yyyymmddThh:mm:ssZ LLL [data]" |
| 241 | 126 * T=Type, I=Info, yyyymmddThh:mm:ssZ=date, LLL=0-padded-len |
| 110 | 127 * |
| 128 * Types: | |
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129 * - M message Info: S (send) R (receive) I (info) |
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130 * - S status Info: [_ofdnai] |
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131 * We don't check them, we trust the caller. |
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132 * (Info messages are not sent nor received, they're generated |
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133 * locally by mcabber.) |
| 110 | 134 */ |
| 135 | |
| 113 | 136 fp = fopen(filename, "a"); |
| 155 | 137 g_free(filename); |
| 273 | 138 if (!fp) { |
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139 scr_LogPrint(LPRINT_LOGNORM, "Unable to write history " |
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140 "(cannot open logfile)"); |
| 273 | 141 return; |
| 142 } | |
| 178 | 143 |
| 241 | 144 to_iso8601(str_ts, ts); |
| 273 | 145 err = fprintf(fp, "%c%c %-18.18s %03d %s\n", type, info, str_ts, len, data); |
| 113 | 146 fclose(fp); |
| 273 | 147 if (err < 0) { |
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148 scr_LogPrint(LPRINT_LOGNORM, "Error while writing to log file: %s", |
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149 strerror(errno)); |
| 273 | 150 } |
| 110 | 151 } |
| 152 | |
| 178 | 153 // hlog_read_history() |
| 154 // Reads the jid's history logfile | |
| 1058 | 155 void hlog_read_history(const char *bjid, GList **p_buddyhbuf, guint width) |
| 178 | 156 { |
| 157 char *filename; | |
| 158 guchar type, info; | |
| 159 char *data, *tail; | |
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160 guint data_size; |
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161 char *xtext; |
| 184 | 162 time_t timestamp; |
| 163 guint prefix_flags; | |
| 178 | 164 guint len; |
| 165 FILE *fp; | |
| 197 | 166 struct stat bufstat; |
| 193 | 167 guint err = 0; |
| 248 | 168 guint ln = 0; // line number |
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169 time_t starttime; |
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170 int max_num_of_blocks; |
| 178 | 171 |
| 1106 | 172 if (!FileLoadLogs) |
| 173 return; | |
| 178 | 174 |
| 1058 | 175 if ((roster_gettype(bjid) & ROSTER_TYPE_ROOM) && |
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176 (settings_opt_get_int("load_muc_logs") != 1)) |
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177 return; |
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178 |
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179 data_size = HBB_BLOCKSIZE+32; |
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180 data = g_new(char, data_size); |
| 178 | 181 if (!data) { |
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182 scr_LogPrint(LPRINT_LOGNORM, "Not enough memory to read history file"); |
| 178 | 183 return; |
| 184 } | |
| 185 | |
| 1058 | 186 filename = user_histo_file(bjid); |
| 178 | 187 |
| 188 fp = fopen(filename, "r"); | |
| 189 g_free(filename); | |
| 1106 | 190 if (!fp) { |
| 191 g_free(data); | |
| 192 return; | |
| 193 } | |
| 178 | 194 |
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195 // If file is large (> 3MB here), display a message to inform the user |
| 197 | 196 // (it can take a while...) |
| 197 if (!fstat(fileno(fp), &bufstat)) { | |
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198 if (bufstat.st_size > 3145728) { |
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199 scr_LogPrint(LPRINT_NORMAL, "Reading <%s> history file...", bjid); |
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200 scr_DoUpdate(); |
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201 } |
| 197 | 202 } |
| 203 | |
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204 max_num_of_blocks = get_max_history_blocks(); |
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205 |
| 1106 | 206 starttime = 0L; |
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207 if (settings_opt_get_int("max_history_age") > 0) { |
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208 int maxdays = settings_opt_get_int("max_history_age"); |
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209 time(&starttime); |
| 1106 | 210 if (maxdays >= starttime/86400L) |
| 211 starttime = 0L; | |
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212 else |
| 1106 | 213 starttime -= maxdays * 86400L; |
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214 } |
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215 |
| 178 | 216 /* See write_histo_line() for line format... */ |
| 217 while (!feof(fp)) { | |
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218 guint dataoffset = 25; |
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219 guint noeol; |
| 1106 | 220 |
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221 if (fgets(data, data_size-1, fp) == NULL) |
| 1106 | 222 break; |
| 248 | 223 ln++; |
| 178 | 224 |
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225 while (1) { |
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226 for (tail = data; *tail; tail++) ; |
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227 noeol = (*(tail-1) != '\n'); |
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228 if (!noeol) |
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229 break; |
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230 /* TODO: duplicated code... could do better... */ |
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231 if (tail == data + data_size-2) { |
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232 // The buffer is too small to contain the whole line. |
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233 // Let's allocate some more space. |
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234 if (!max_num_of_blocks || |
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235 data_size/HBB_BLOCKSIZE < 5U*max_num_of_blocks) { |
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236 guint toffset = tail - data; |
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237 // Allocate one more block. |
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238 data_size = HBB_BLOCKSIZE * (1 + data_size/HBB_BLOCKSIZE); |
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239 data = g_renew(char, data, data_size); |
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240 // Update the tail pointer, as the data may have been moved. |
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241 tail = data + toffset; |
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242 if (fgets(tail, data_size-1 - (tail-data), fp) == NULL) |
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243 break; |
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244 } else { |
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245 scr_LogPrint(LPRINT_LOGNORM, "Line too long in history file!"); |
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246 ln--; |
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247 break; |
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248 } |
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249 } |
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250 } |
| 178 | 251 |
| 252 type = data[0]; | |
| 253 info = data[1]; | |
| 241 | 254 |
|
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255 if ((type != 'M' && type != 'S') || |
| 259 | 256 ((data[11] != 'T') || (data[20] != 'Z') || |
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257 (data[21] != ' ') || |
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258 (data[25] != ' ' && data[26] != ' '))) { |
| 193 | 259 if (!err) { |
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260 scr_LogPrint(LPRINT_LOGNORM, |
| 1058 | 261 "Error in history file format (%s), l.%u", bjid, ln); |
| 193 | 262 err = 1; |
| 263 } | |
| 186 | 264 continue; |
| 178 | 265 } |
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266 // The number of lines can be written with 3 or 4 bytes. |
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267 if (data[25] != ' ') dataoffset = 26; |
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268 data[21] = data[dataoffset] = 0; |
| 259 | 269 timestamp = from_iso8601(&data[3], 1); |
| 270 len = (guint) atoi(&data[22]); | |
|
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271 |
| 178 | 272 // Some checks |
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273 if (((type == 'M') && (info != 'S' && info != 'R' && info != 'I')) || |
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274 ((type == 'S') && (!strchr("_OFDNAI", info)))) { |
| 193 | 275 if (!err) { |
|
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276 scr_LogPrint(LPRINT_LOGNORM, "Error in history file format (%s), l.%u", |
| 1058 | 277 bjid, ln); |
| 193 | 278 err = 1; |
| 279 } | |
| 186 | 280 continue; |
| 178 | 281 } |
| 282 | |
| 283 while (len--) { | |
| 248 | 284 ln++; |
|
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285 if (fgets(tail, data_size-1 - (tail-data), fp) == NULL) |
| 249 | 286 break; |
| 178 | 287 |
| 288 while (*tail) tail++; | |
|
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289 noeol = (*(tail-1) != '\n'); |
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290 if (tail == data + data_size-2 && (len || noeol)) { |
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291 // The buffer is too small to contain the whole message. |
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292 // Let's allocate some more space. |
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293 if (!max_num_of_blocks || |
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294 data_size/HBB_BLOCKSIZE < 5U*max_num_of_blocks) { |
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295 guint toffset = tail - data; |
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296 // If the line hasn't been read completely and we reallocate the |
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297 // buffer, we want to read one more time. |
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298 if (noeol) |
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299 len++; |
|
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300 // Allocate one more block. |
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301 data_size = HBB_BLOCKSIZE * (1 + data_size/HBB_BLOCKSIZE); |
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302 data = g_renew(char, data, data_size); |
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303 // Update the tail pointer, as the data may have been moved. |
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304 tail = data + toffset; |
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305 } else { |
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306 // There will probably be a parse error on next read, because |
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307 // this message hasn't been read entirely. |
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308 scr_LogPrint(LPRINT_LOGNORM, "Message too big in history file!"); |
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309 } |
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310 } |
| 248 | 311 } |
| 251 | 312 // Remove last CR (we keep it if the line is empty, too) |
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313 if ((tail > data+dataoffset+1) && (*(tail-1) == '\n')) |
| 178 | 314 *(tail-1) = 0; |
| 315 | |
|
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316 // Check if the data is older than max_history_age |
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317 if (starttime) { |
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318 if (timestamp > starttime) |
| 1106 | 319 starttime = 0L; // From now on, load everything |
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320 else |
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321 continue; |
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322 } |
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323 |
| 178 | 324 if (type == 'M') { |
|
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325 char *converted; |
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326 if (info == 'S') { |
|
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327 prefix_flags = HBB_PREFIX_OUT | HBB_PREFIX_HLIGHT_OUT; |
|
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328 } else { |
| 184 | 329 prefix_flags = HBB_PREFIX_IN; |
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330 if (info == 'I') |
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331 prefix_flags = HBB_PREFIX_INFO; |
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332 } |
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333 converted = from_utf8(&data[dataoffset+1]); |
|
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334 if (converted) { |
|
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335 xtext = ut_expand_tabs(converted); // Expand tabs |
|
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336 hbuf_add_line(p_buddyhbuf, xtext, timestamp, prefix_flags, width, |
|
1290
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Michal 'vorner' Vaner <vorner@ucw.cz>
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337 max_num_of_blocks, 0); |
|
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338 if (xtext != converted) |
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339 g_free(xtext); |
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340 g_free(converted); |
|
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341 } |
| 193 | 342 err = 0; |
| 178 | 343 } |
| 344 } | |
| 345 fclose(fp); | |
| 346 g_free(data); | |
| 347 } | |
| 348 | |
| 110 | 349 // hlog_enable() |
| 350 // Enable logging to files. If root_dir is NULL, then $HOME/.mcabber is used. | |
| 177 | 351 // If loadfiles is TRUE, we will try to load buddies history logs from file. |
|
281
f562b9af2de7
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|
352 void hlog_enable(guint enable, const char *root_dir, guint loadfiles) |
| 110 | 353 { |
| 354 UseFileLogging = enable; | |
| 177 | 355 FileLoadLogs = loadfiles; |
| 110 | 356 |
| 177 | 357 if (enable || loadfiles) { |
| 110 | 358 if (root_dir) { |
|
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359 char *xp_root_dir; |
| 110 | 360 int l = strlen(root_dir); |
| 361 if (l < 1) { | |
|
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362 scr_LogPrint(LPRINT_LOGNORM, "Error: logging dir name too short"); |
|
362
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363 UseFileLogging = FileLoadLogs = FALSE; |
| 110 | 364 return; |
| 365 } | |
|
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366 xp_root_dir = expand_filename(root_dir); |
| 110 | 367 // RootDir must be slash-terminated |
|
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368 if (root_dir[l-1] == '/') { |
|
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369 RootDir = xp_root_dir; |
|
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370 } else { |
|
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371 RootDir = g_strdup_printf("%s/", xp_root_dir); |
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372 g_free(xp_root_dir); |
|
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373 } |
| 110 | 374 } else { |
| 375 char *home = getenv("HOME"); | |
| 1106 | 376 const char *dir = "/.mcabber/histo/"; |
| 377 RootDir = g_strdup_printf("%s%s", home, dir); | |
| 110 | 378 } |
|
362
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|
379 // Check directory permissions (should not be readable by group/others) |
|
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|
380 if (checkset_perm(RootDir, TRUE) == -1) { |
|
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|
381 // The directory does not actually exists |
|
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|
382 g_free(RootDir); |
| 1106 | 383 RootDir = NULL; |
|
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|
384 scr_LogPrint(LPRINT_LOGNORM, "ERROR: Cannot access " |
|
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|
385 "history log directory, logging DISABLED"); |
|
362
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386 UseFileLogging = FileLoadLogs = FALSE; |
|
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387 } |
|
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|
388 } else { // Disable history logging |
|
774
46304b773a44
Remove useless checks before g_free() calls
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diff
changeset
|
389 g_free(RootDir); |
| 1106 | 390 RootDir = NULL; |
| 110 | 391 } |
| 392 } | |
| 393 | |
| 1058 | 394 inline void hlog_write_message(const char *bjid, time_t timestamp, int sent, |
| 113 | 395 const char *msg) |
| 396 { | |
|
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397 guchar info; |
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398 /* sent=1 message sent by mcabber |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
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changeset
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399 * sent=0 message received by mcabber |
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History logfile: Use a special code (MI) for local MUC info messages
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parents:
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changeset
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400 * sent=-1 local info message |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
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diff
changeset
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401 */ |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
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parents:
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diff
changeset
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402 if (sent == 1) |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
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diff
changeset
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403 info = 'S'; |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
1311
diff
changeset
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404 else if (sent == 0) |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
1311
diff
changeset
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405 info = 'R'; |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
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diff
changeset
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406 else |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
1311
diff
changeset
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407 info = 'I'; |
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06441b6cc23a
History logfile: Use a special code (MI) for local MUC info messages
Mikael Berthe <mikael@lilotux.net>
parents:
1311
diff
changeset
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408 write_histo_line(bjid, timestamp, 'M', info, msg); |
| 113 | 409 } |
| 410 | |
| 1058 | 411 inline void hlog_write_status(const char *bjid, time_t timestamp, |
| 221 | 412 enum imstatus status, const char *status_msg) |
| 113 | 413 { |
| 1205 | 414 // XXX Check status value? |
| 1058 | 415 write_histo_line(bjid, timestamp, 'S', toupper(imstatus2char[status]), |
| 221 | 416 status_msg); |
| 113 | 417 } |
| 418 | |
| 580 | 419 /* vim: set expandtab cindent cinoptions=>2\:2(0: For Vim users... */ |