1 | #include "owl.h" |
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2 | #include <stdio.h> |
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3 | |
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4 | typedef struct _owl_log_entry { /* noproto */ |
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5 | char *filename; |
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6 | char *message; |
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7 | } owl_log_entry; |
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8 | |
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9 | |
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10 | static GMainContext *log_context; |
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11 | static GMainLoop *log_loop; |
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12 | static GThread *logging_thread; |
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13 | bool defer_logs; |
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14 | static GQueue *deferred_entry_queue; |
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15 | |
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16 | /* This is now the one function that should be called to log a |
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17 | * message. It will do all the work necessary by calling the other |
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18 | * functions in this file as necessary. |
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19 | */ |
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20 | void owl_log_message(const owl_message *m) { |
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21 | owl_function_debugmsg("owl_log_message: entering"); |
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22 | |
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23 | if (m == NULL) { |
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24 | owl_function_debugmsg("owl_log_message: passed null message"); |
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25 | return; |
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26 | } |
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27 | |
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28 | /* should we be logging this message? */ |
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29 | if (!owl_log_shouldlog_message(m)) { |
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30 | owl_function_debugmsg("owl_log_message: not logging message"); |
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31 | return; |
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32 | } |
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33 | |
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34 | /* handle incmoing messages */ |
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35 | if (owl_message_is_direction_in(m)) { |
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36 | owl_log_incoming(m); |
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37 | owl_function_debugmsg("owl_log_message: leaving"); |
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38 | return; |
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39 | } |
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40 | |
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41 | /* handle outgoing messages */ |
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42 | owl_log_outgoing(m); |
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43 | |
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44 | owl_function_debugmsg("owl_log_message: leaving"); |
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45 | } |
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46 | |
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47 | /* Return 1 if we should log the given message, otherwise return 0 */ |
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48 | int owl_log_shouldlog_message(const owl_message *m) { |
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49 | const owl_filter *f; |
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50 | |
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51 | /* If there's a logfilter and this message matches it, log */ |
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52 | f=owl_global_get_filter(&g, owl_global_get_logfilter(&g)); |
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53 | if (f && owl_filter_message_match(f, m)) return(1); |
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54 | |
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55 | /* otherwise we do things based on the logging variables */ |
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56 | |
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57 | /* skip login/logout messages if appropriate */ |
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58 | if (!owl_global_is_loglogins(&g) && owl_message_is_loginout(m)) return(0); |
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59 | |
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60 | /* check direction */ |
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61 | if ((owl_global_get_loggingdirection(&g)==OWL_LOGGING_DIRECTION_IN) && owl_message_is_direction_out(m)) { |
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62 | return(0); |
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63 | } |
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64 | if ((owl_global_get_loggingdirection(&g)==OWL_LOGGING_DIRECTION_OUT) && owl_message_is_direction_in(m)) { |
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65 | return(0); |
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66 | } |
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67 | |
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68 | if (owl_message_is_type_zephyr(m)) { |
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69 | if (owl_message_is_personal(m) && !owl_global_is_logging(&g)) return(0); |
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70 | if (!owl_message_is_personal(m) && !owl_global_is_classlogging(&g)) return(0); |
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71 | } else { |
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72 | if (owl_message_is_private(m) || owl_message_is_loginout(m)) { |
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73 | if (!owl_global_is_logging(&g)) return(0); |
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74 | } else { |
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75 | if (!owl_global_is_classlogging(&g)) return(0); |
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76 | } |
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77 | } |
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78 | return(1); |
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79 | } |
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80 | |
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81 | CALLER_OWN char *owl_log_zephyr(const owl_message *m) |
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82 | { |
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83 | char *tmp = NULL; |
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84 | GString *buffer = NULL; |
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85 | buffer = g_string_new(""); |
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86 | tmp = short_zuser(owl_message_get_sender(m)); |
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87 | g_string_append_printf(buffer, "Class: %s Instance: %s", |
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88 | owl_message_get_class(m), |
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89 | owl_message_get_instance(m)); |
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90 | if (strcmp(owl_message_get_opcode(m), "")) { |
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91 | g_string_append_printf(buffer, " Opcode: %s", |
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92 | owl_message_get_opcode(m)); |
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93 | } |
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94 | g_string_append_printf(buffer, "\n"); |
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95 | g_string_append_printf(buffer, "Time: %s Host: %s\n", |
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96 | owl_message_get_timestr(m), |
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97 | owl_message_get_hostname(m)); |
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98 | g_string_append_printf(buffer, "From: %s <%s>\n\n", |
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99 | owl_message_get_zsig(m), tmp); |
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100 | g_string_append_printf(buffer, "%s\n\n", owl_message_get_body(m)); |
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101 | g_free(tmp); |
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102 | return g_string_free(buffer, FALSE); |
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103 | } |
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104 | |
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105 | CALLER_OWN char *owl_log_aim(const owl_message *m) |
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106 | { |
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107 | GString *buffer = NULL; |
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108 | buffer = g_string_new(""); |
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109 | g_string_append_printf(buffer, "From: <%s> To: <%s>\n", |
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110 | owl_message_get_sender(m), owl_message_get_recipient(m)); |
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111 | g_string_append_printf(buffer, "Time: %s\n\n", |
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112 | owl_message_get_timestr(m)); |
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113 | if (owl_message_is_login(m)) { |
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114 | g_string_append_printf(buffer, "LOGIN\n\n"); |
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115 | } else if (owl_message_is_logout(m)) { |
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116 | g_string_append_printf(buffer, "LOGOUT\n\n"); |
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117 | } else { |
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118 | g_string_append_printf(buffer, "%s\n\n", owl_message_get_body(m)); |
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119 | } |
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120 | return g_string_free(buffer, FALSE); |
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121 | } |
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122 | |
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123 | CALLER_OWN char *owl_log_jabber(const owl_message *m) |
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124 | { |
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125 | GString *buffer = NULL; |
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126 | buffer = g_string_new(""); |
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127 | g_string_append_printf(buffer, "From: <%s> To: <%s>\n", |
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128 | owl_message_get_sender(m), |
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129 | owl_message_get_recipient(m)); |
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130 | g_string_append_printf(buffer, "Time: %s\n\n", |
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131 | owl_message_get_timestr(m)); |
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132 | g_string_append_printf(buffer, "%s\n\n", owl_message_get_body(m)); |
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133 | return g_string_free(buffer, FALSE); |
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134 | } |
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135 | |
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136 | CALLER_OWN char *owl_log_generic(const owl_message *m) |
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137 | { |
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138 | GString *buffer; |
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139 | buffer = g_string_new(""); |
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140 | g_string_append_printf(buffer, "From: <%s> To: <%s>\n", |
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141 | owl_message_get_sender(m), |
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142 | owl_message_get_recipient(m)); |
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143 | g_string_append_printf(buffer, "Time: %s\n\n", |
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144 | owl_message_get_timestr(m)); |
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145 | g_string_append_printf(buffer, "%s\n\n", |
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146 | owl_message_get_body(m)); |
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147 | return g_string_free(buffer, FALSE); |
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148 | } |
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149 | |
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150 | static void owl_log_error_main_thread(gpointer data) |
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151 | { |
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152 | owl_function_error("%s", (const char*)data); |
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153 | } |
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154 | |
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155 | static void owl_log_error(const char *message) |
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156 | { |
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157 | char *data = g_strdup(message); |
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158 | owl_select_post_task(owl_log_error_main_thread, |
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159 | data, g_free, g_main_context_default()); |
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160 | } |
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161 | |
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162 | static CALLER_OWN owl_log_entry *owl_log_new_entry(const char *buffer, const char *filename) |
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163 | { |
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164 | owl_log_entry *log_msg = g_new(owl_log_entry, 1); |
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165 | log_msg->message = g_strdup(buffer); |
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166 | log_msg->filename = g_strdup(filename); |
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167 | return log_msg; |
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168 | } |
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169 | |
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170 | static void owl_log_deferred_enqueue_message(const char *buffer, const char *filename) |
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171 | { |
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172 | g_queue_push_tail(deferred_entry_queue, owl_log_new_entry(buffer, filename)); |
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173 | } |
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174 | |
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175 | /* write out the entry if possible |
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176 | * return 0 on success, errno on failure to open |
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177 | */ |
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178 | static int owl_log_try_write_entry(owl_log_entry *msg) |
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179 | { |
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180 | FILE *file = NULL; |
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181 | file = fopen(msg->filename, "a"); |
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182 | if (!file) { |
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183 | return errno; |
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184 | } |
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185 | fprintf(file, "%s", msg->message); |
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186 | fclose(file); |
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187 | return 0; |
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188 | } |
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189 | |
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190 | static void owl_log_entry_free(void *data) |
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191 | { |
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192 | owl_log_entry *msg = (owl_log_entry*)data; |
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193 | if (msg) { |
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194 | g_free(msg->message); |
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195 | g_free(msg->filename); |
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196 | g_free(msg); |
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197 | } |
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198 | } |
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199 | |
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200 | static void owl_log_entry_free_gfunc(gpointer data, gpointer user_data) |
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201 | { |
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202 | owl_log_entry_free(data); |
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203 | } |
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204 | |
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205 | /* If we are deferring log messages, enqueue this entry for |
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206 | * writing. Otherwise, try to write this log message, and, |
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207 | * if it fails with EPERM or EACCES, go into deferred logging |
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208 | * mode and queue an admin message. If it fails with anything |
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209 | * else, display an error message, but do not go into deferred |
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210 | * logging mode. */ |
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211 | static void owl_log_eventually_write_entry(gpointer data) |
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212 | { |
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213 | int ret; |
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214 | gchar *errmsg; |
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215 | owl_log_entry *msg = (owl_log_entry*)data; |
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216 | if (defer_logs) { |
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217 | owl_log_deferred_enqueue_message(msg->message, msg->filename); |
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218 | } else { |
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219 | ret = owl_log_try_write_entry(msg); |
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220 | if (ret == EPERM || ret == EACCES) { |
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221 | defer_logs = true; |
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222 | owl_log_error("Unable to open file for logging; you do not have \n" |
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223 | "permission. Consider renewing your tickets. \n" |
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224 | "Logging has been suspended, and your messages \n" |
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225 | "will be saved. To resume logging, use the \n" |
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226 | "command :flush-logs.\n\n"); |
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227 | owl_log_deferred_enqueue_message(msg->message, msg->filename); |
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228 | } else if (ret != 0) { |
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229 | errmsg = g_strdup_printf("Unable to open file for logging: %s", g_strerror(ret)); |
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230 | owl_log_error(errmsg); |
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231 | g_free(errmsg); |
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232 | } |
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233 | } |
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234 | } |
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235 | |
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236 | /* tries to the deferred log entries */ |
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237 | static void owl_log_write_deferred_entries(gpointer data) |
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238 | { |
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239 | owl_log_entry *entry; |
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240 | |
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241 | defer_logs = false; |
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242 | while (!g_queue_is_empty(deferred_entry_queue) && !defer_logs) { |
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243 | entry = (owl_log_entry*)g_queue_pop_head(deferred_entry_queue); |
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244 | owl_log_eventually_write_entry(entry); |
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245 | owl_log_entry_free(entry); |
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246 | } |
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247 | } |
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248 | |
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249 | void owl_log_flush_logs(void) |
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250 | { |
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251 | owl_select_post_task(owl_log_write_deferred_entries, NULL, NULL, log_context); |
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252 | } |
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253 | |
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254 | void owl_log_enqueue_message(const char *buffer, const char *filename) |
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255 | { |
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256 | owl_log_entry *log_msg = owl_log_new_entry(buffer, filename); |
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257 | owl_select_post_task(owl_log_eventually_write_entry, log_msg, |
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258 | owl_log_entry_free, log_context); |
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259 | } |
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260 | |
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261 | void owl_log_append(const owl_message *m, const char *filename) { |
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262 | char *buffer = NULL; |
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263 | if (owl_message_is_type_zephyr(m)) { |
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264 | buffer = owl_log_zephyr(m); |
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265 | } else if (owl_message_is_type_jabber(m)) { |
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266 | buffer = owl_log_jabber(m); |
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267 | } else if (owl_message_is_type_aim(m)) { |
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268 | buffer = owl_log_aim(m); |
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269 | } else { |
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270 | buffer = owl_log_generic(m); |
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271 | } |
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272 | owl_log_enqueue_message(buffer, filename); |
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273 | g_free(buffer); |
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274 | } |
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275 | |
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276 | void owl_log_outgoing(const owl_message *m) |
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277 | { |
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278 | char *filename, *logpath; |
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279 | char *to, *temp; |
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280 | GList *cc; |
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281 | |
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282 | /* expand ~ in path names */ |
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283 | logpath = owl_util_makepath(owl_global_get_logpath(&g)); |
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284 | |
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285 | /* Figure out what path to log to */ |
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286 | if (owl_message_is_type_zephyr(m)) { |
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287 | /* If this has CC's, do all but the "recipient" which we'll do below */ |
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288 | cc = owl_message_get_cc_without_recipient(m); |
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289 | while (cc != NULL) { |
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290 | temp = short_zuser(cc->data); |
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291 | filename = g_build_filename(logpath, temp, NULL); |
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292 | owl_log_append(m, filename); |
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293 | |
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294 | g_free(filename); |
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295 | g_free(temp); |
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296 | g_free(cc->data); |
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297 | cc = g_list_delete_link(cc, cc); |
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298 | } |
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299 | |
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300 | to = short_zuser(owl_message_get_recipient(m)); |
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301 | } else if (owl_message_is_type_jabber(m)) { |
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302 | to = g_strdup_printf("jabber:%s", owl_message_get_recipient(m)); |
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303 | g_strdelimit(to, "/", '_'); |
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304 | } else if (owl_message_is_type_aim(m)) { |
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305 | char *temp2; |
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306 | temp = owl_aim_normalize_screenname(owl_message_get_recipient(m)); |
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307 | temp2 = g_utf8_strdown(temp,-1); |
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308 | to = g_strdup_printf("aim:%s", temp2); |
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309 | g_free(temp2); |
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310 | g_free(temp); |
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311 | } else { |
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312 | to = g_strdup("loopback"); |
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313 | } |
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314 | |
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315 | filename = g_build_filename(logpath, to, NULL); |
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316 | owl_log_append(m, filename); |
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317 | g_free(to); |
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318 | g_free(filename); |
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319 | |
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320 | filename = g_build_filename(logpath, "all", NULL); |
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321 | owl_log_append(m, filename); |
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322 | g_free(logpath); |
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323 | g_free(filename); |
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324 | } |
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325 | |
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326 | |
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327 | void owl_log_outgoing_zephyr_error(const owl_zwrite *zw, const char *text) |
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328 | { |
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329 | char *filename, *logpath; |
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330 | char *tobuff, *recip; |
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331 | owl_message *m; |
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332 | GString *msgbuf; |
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333 | /* create a present message so we can pass it to |
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334 | * owl_log_shouldlog_message(void) |
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335 | */ |
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336 | m = g_new(owl_message, 1); |
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337 | /* recip_index = 0 because there can only be one recipient anyway */ |
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338 | owl_message_create_from_zwrite(m, zw, text, 0); |
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339 | if (!owl_log_shouldlog_message(m)) { |
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340 | owl_message_delete(m); |
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341 | return; |
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342 | } |
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343 | owl_message_delete(m); |
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344 | |
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345 | /* chop off a local realm */ |
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346 | recip = owl_zwrite_get_recip_n_with_realm(zw, 0); |
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347 | tobuff = short_zuser(recip); |
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348 | g_free(recip); |
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349 | |
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350 | /* expand ~ in path names */ |
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351 | logpath = owl_util_makepath(owl_global_get_logpath(&g)); |
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352 | filename = g_build_filename(logpath, tobuff, NULL); |
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353 | msgbuf = g_string_new(""); |
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354 | g_string_printf(msgbuf, "ERROR (owl): %s\n%s\n", tobuff, text); |
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355 | if (text[strlen(text)-1] != '\n') { |
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356 | g_string_append_printf(msgbuf, "\n"); |
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357 | } |
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358 | owl_log_enqueue_message(msgbuf->str, filename); |
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359 | g_string_free(msgbuf, TRUE); |
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360 | |
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361 | filename = g_build_filename(logpath, "all", NULL); |
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362 | g_free(logpath); |
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363 | msgbuf = g_string_new(""); |
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364 | g_string_printf(msgbuf, "ERROR (owl): %s\n%s\n", tobuff, text); |
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365 | if (text[strlen(text)-1] != '\n') { |
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366 | g_string_append_printf(msgbuf, "\n"); |
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367 | } |
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368 | owl_log_enqueue_message(msgbuf->str, filename); |
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369 | g_string_free(msgbuf, TRUE); |
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370 | |
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371 | g_free(tobuff); |
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372 | } |
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373 | |
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374 | void owl_log_incoming(const owl_message *m) |
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375 | { |
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376 | char *filename, *allfilename, *logpath; |
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377 | const char *from=NULL; |
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378 | char *frombuff=NULL; |
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379 | int len, ch, i, personal; |
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380 | |
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381 | /* figure out if it's a "personal" message or not */ |
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382 | if (owl_message_is_type_zephyr(m)) { |
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383 | if (owl_message_is_personal(m)) { |
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384 | personal = 1; |
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385 | } else { |
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386 | personal = 0; |
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387 | } |
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388 | } else if (owl_message_is_type_jabber(m)) { |
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389 | /* This needs to be fixed to handle groupchat */ |
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390 | const char* msgtype = owl_message_get_attribute_value(m,"jtype"); |
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391 | if (msgtype && !strcmp(msgtype,"groupchat")) { |
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392 | personal = 0; |
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393 | } else { |
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394 | personal = 1; |
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395 | } |
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396 | } else { |
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397 | if (owl_message_is_private(m) || owl_message_is_loginout(m)) { |
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398 | personal = 1; |
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399 | } else { |
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400 | personal = 0; |
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401 | } |
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402 | } |
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403 | |
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404 | |
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405 | if (owl_message_is_type_zephyr(m)) { |
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406 | if (personal) { |
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407 | from=frombuff=short_zuser(owl_message_get_sender(m)); |
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408 | } else { |
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409 | from=frombuff=g_strdup(owl_message_get_class(m)); |
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410 | } |
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411 | } else if (owl_message_is_type_aim(m)) { |
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412 | /* we do not yet handle chat rooms */ |
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413 | char *normalto, *temp; |
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414 | temp = owl_aim_normalize_screenname(owl_message_get_sender(m)); |
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415 | normalto = g_utf8_strdown(temp, -1); |
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416 | from=frombuff=g_strdup_printf("aim:%s", normalto); |
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417 | g_free(normalto); |
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418 | g_free(temp); |
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419 | } else if (owl_message_is_type_loopback(m)) { |
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420 | from=frombuff=g_strdup("loopback"); |
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421 | } else if (owl_message_is_type_jabber(m)) { |
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422 | if (personal) { |
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423 | from=frombuff=g_strdup_printf("jabber:%s", |
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424 | owl_message_get_sender(m)); |
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425 | } else { |
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426 | from=frombuff=g_strdup_printf("jabber:%s", |
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427 | owl_message_get_recipient(m)); |
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428 | } |
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429 | } else { |
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430 | from=frombuff=g_strdup("unknown"); |
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431 | } |
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432 | |
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433 | /* check for malicious sender formats */ |
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434 | len=strlen(frombuff); |
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435 | if (len<1 || len>35) from="weird"; |
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436 | if (strchr(frombuff, '/')) from="weird"; |
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437 | |
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438 | ch=frombuff[0]; |
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439 | if (!g_ascii_isalnum(ch)) from="weird"; |
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440 | |
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441 | for (i=0; i<len; i++) { |
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442 | if (frombuff[i]<'!' || frombuff[i]>='~') from="weird"; |
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443 | } |
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444 | |
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445 | if (!strcmp(frombuff, ".") || !strcasecmp(frombuff, "..")) from="weird"; |
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446 | |
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447 | if (!personal) { |
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448 | if (strcmp(from, "weird")) { |
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449 | char* temp = g_utf8_strdown(frombuff, -1); |
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450 | if (temp) { |
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451 | g_free(frombuff); |
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452 | from = frombuff = temp; |
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453 | } |
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454 | } |
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455 | } |
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456 | |
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457 | /* create the filename (expanding ~ in path names) */ |
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458 | if (personal) { |
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459 | logpath = owl_util_makepath(owl_global_get_logpath(&g)); |
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460 | filename = g_build_filename(logpath, from, NULL); |
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461 | allfilename = g_build_filename(logpath, "all", NULL); |
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462 | owl_log_append(m, allfilename); |
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463 | g_free(allfilename); |
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464 | } else { |
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465 | logpath = owl_util_makepath(owl_global_get_classlogpath(&g)); |
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466 | filename = g_build_filename(logpath, from, NULL); |
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467 | } |
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468 | |
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469 | owl_log_append(m, filename); |
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470 | g_free(filename); |
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471 | |
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472 | if (personal && owl_message_is_type_zephyr(m)) { |
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473 | /* We want to log to all of the CC'd people who were not us, or |
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474 | * the sender, as well. |
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475 | */ |
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476 | char *temp; |
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477 | GList *cc; |
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478 | cc = owl_message_get_cc_without_recipient(m); |
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479 | while (cc != NULL) { |
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480 | temp = short_zuser(cc->data); |
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481 | if (strcasecmp(temp, frombuff) != 0) { |
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482 | filename = g_build_filename(logpath, temp, NULL); |
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483 | owl_log_append(m, filename); |
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484 | g_free(filename); |
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485 | } |
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486 | |
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487 | g_free(temp); |
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488 | g_free(cc->data); |
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489 | cc = g_list_delete_link(cc, cc); |
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490 | } |
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491 | } |
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492 | |
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493 | g_free(frombuff); |
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494 | g_free(logpath); |
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495 | } |
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496 | |
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497 | static gpointer owl_log_thread_func(gpointer data) |
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498 | { |
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499 | log_context = g_main_context_new(); |
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500 | log_loop = g_main_loop_new(log_context, FALSE); |
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501 | g_main_loop_run(log_loop); |
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502 | return NULL; |
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503 | } |
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504 | |
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505 | void owl_log_init(void) |
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506 | { |
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507 | log_context = g_main_context_new(); |
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508 | #if GLIB_CHECK_VERSION(2, 31, 0) |
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509 | logging_thread = g_thread_new("logging", |
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510 | owl_log_thread_func, |
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511 | NULL); |
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512 | #else |
---|
513 | GError *error = NULL; |
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514 | logging_thread = g_thread_create(owl_log_thread_func, |
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515 | NULL, |
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516 | TRUE, |
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517 | &error); |
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518 | if (error) { |
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519 | endwin(); |
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520 | fprintf(stderr, "Error spawning logging thread: %s\n", error->message); |
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521 | fflush(stderr); |
---|
522 | exit(1); |
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523 | } |
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524 | #endif |
---|
525 | |
---|
526 | deferred_entry_queue = g_queue_new(); |
---|
527 | } |
---|
528 | |
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529 | static void owl_log_quit_func(gpointer data) |
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530 | { |
---|
531 | /* flush the deferred logs queue, trying to write the |
---|
532 | * entries to the disk one last time */ |
---|
533 | owl_log_write_deferred_entries(NULL); |
---|
534 | #if GLIB_CHECK_VERSION(2, 32, 0) |
---|
535 | g_queue_free_full(deferred_entry_queue, owl_log_entry_free_gfunc); |
---|
536 | #else |
---|
537 | g_queue_foreach(deferred_entry_queue, owl_log_entry_free_gfunc, NULL); |
---|
538 | g_queue_free(deferred_entry_queue); |
---|
539 | #endif |
---|
540 | |
---|
541 | g_main_loop_quit(log_loop); |
---|
542 | } |
---|
543 | |
---|
544 | void owl_log_shutdown(void) |
---|
545 | { |
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546 | owl_select_post_task(owl_log_quit_func, NULL, |
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547 | NULL, log_context); |
---|
548 | g_thread_join(logging_thread); |
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549 | } |
---|