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comparison mcabber/mcabber/settings.c @ 2204:ccd4ffa41a1b

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Use XDG configuration directory if a config file exists If $XDG_CONFIG_HOME (or $HOME/.config) contains a file "mcabber/mcabberrc" it is used and $XDG_CONFIG_HOME/mcabber becomes the main mcabber configuration directory. (The ~/.mcabber/mcabberrc is still checked first.)
author Mikael Berthe <mikael@lilotux.net>
date Sat, 17 Oct 2015 20:17:30 +0200
parents 038c4d601011
children 5a107c907e71
comparison
equal deleted inserted replaced
2203:170597f5365b 2204:ccd4ffa41a1b
1 /* 1 /*
2 * settings.c -- Configuration stuff 2 * settings.c -- Configuration stuff
3 * 3 *
4 * Copyright (C) 2005-2010 Mikael Berthe <mikael@lilotux.net> 4 * Copyright (C) 2005-2015 Mikael Berthe <mikael@lilotux.net>
5 * 5 *
6 * This program is free software; you can redistribute it and/or modify 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 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 8 * the Free Software Foundation; either version 2 of the License, or (at
9 * your option) any later version. 9 * your option) any later version.
20 */ 20 */
21 21
22 #include <stdio.h> 22 #include <stdio.h>
23 #include <stdlib.h> 23 #include <stdlib.h>
24 #include <string.h> 24 #include <string.h>
25 #include <sys/stat.h>
25 26
26 #include "config.h" 27 #include "config.h"
27 #include "settings.h" 28 #include "settings.h"
28 #include "commands.h" 29 #include "commands.h"
29 #include "logprint.h" 30 #include "logprint.h"
85 #ifdef HAVE_LIBOTR 86 #ifdef HAVE_LIBOTR
86 otrpolicy = g_hash_table_new(&g_str_hash, &g_str_equal); 87 otrpolicy = g_hash_table_new(&g_str_hash, &g_str_equal);
87 #endif 88 #endif
88 } 89 }
89 90
91 // settings_get_mcabber_config_dir()
92 // Returns the mcabber configuration directory.
93 // The directory is looked up for only once (and the string is never freed,
94 // but we might change this later).
95 const gchar *settings_get_mcabber_config_dir(void)
96 {
97 static char *config_dir;
98 char *home_dir;
99 GString *sfilename;
100 FILE *fp;
101
102 if (config_dir)
103 return config_dir;
104
105 home_dir = getenv("HOME");
106 if (!home_dir) {
107 scr_log_print(LPRINT_LOG, "Can't find home dir!");
108 fprintf(stderr, "Can't find home dir!\n");
109 return NULL;
110 }
111
112 sfilename = g_string_new("");
113
114 // First try: $HOME/.mcabber/mcabberrc
115 g_string_printf(sfilename, "%s/.mcabber/mcabberrc", home_dir);
116 if ((fp = fopen(sfilename->str, "r")) != NULL) {
117 fclose(fp);
118 config_dir = g_strdup_printf("%s/.mcabber", home_dir);
119 }
120
121 // Second guess: Try to use the XDG standard configuration directory
122 if (!config_dir) {
123 char *xdg_config_dir = g_strdup(getenv("XDG_CONFIG_HOME"));
124 if (!xdg_config_dir || !*xdg_config_dir) {
125 // Free the string if it is non-null but empty
126 if (xdg_config_dir) g_free(xdg_config_dir);
127 xdg_config_dir = g_strdup_printf("%s/.config", home_dir);
128 }
129
130 if (xdg_config_dir) {
131 int fd = -1;
132 struct stat statbuf;
133
134 if (*xdg_config_dir)
135 fd = stat(xdg_config_dir, &statbuf);
136
137 // If the XDG configuration directory exists, see if we can find a
138 // configuration file for mcabber inside.
139 if (fd != -1) {
140 char *xdg_mcabber_dir = g_strdup_printf("%s/mcabber", xdg_config_dir);
141 g_string_printf(sfilename, "%s/mcabberrc", xdg_mcabber_dir);
142 if ((fp = fopen(sfilename->str, "r")) != NULL) {
143 fclose(fp);
144 config_dir = xdg_mcabber_dir;
145 } else {
146 g_free(xdg_mcabber_dir);
147 }
148 }
149 g_free(xdg_config_dir);
150 }
151 }
152
153 // Last guess: home directory itself...
154 if (!config_dir) {
155 g_string_printf(sfilename, "%s/.mcabberrc", home_dir);
156 if ((fp = fopen(sfilename->str, "r")) != NULL) {
157 fclose(fp);
158 config_dir = g_strdup(home_dir);
159 } else {
160 scr_log_print(LPRINT_NORMAL, "Cannot find/open any configuration file!\n");
161 }
162 }
163
164 g_string_free(sfilename, TRUE);
165 return config_dir;
166 }
167
90 // cfg_read_file(filename, mainfile) 168 // cfg_read_file(filename, mainfile)
91 // Read and parse config file "filename". If filename is NULL, 169 // Read and parse config file "filename". If filename is NULL,
92 // try to open the configuration file at the default locations. 170 // try to open the configuration file at the default locations.
93 // mainfile must be set to TRUE for the startup config file. 171 // mainfile must be set to TRUE for the startup config file.
94 // If mainfile is TRUE, the permissions of the configuration file will 172 // If mainfile is TRUE, the permissions of the configuration file will
102 char *line, *eol; 180 char *line, *eol;
103 unsigned int ln = 0; 181 unsigned int ln = 0;
104 int err = 0; 182 int err = 0;
105 183
106 if (!filename) { 184 if (!filename) {
107 // Use default config file locations 185 const gchar *mcabber_conf_dir;
108 char *home; 186 gchar *def_filename;
109 GString *sfilename;
110 187
111 if (!mainfile) { 188 if (!mainfile) {
112 scr_LogPrint(LPRINT_LOGNORM, "No file name provided"); 189 scr_LogPrint(LPRINT_LOGNORM, "No file name provided");
113 return -1; 190 return -1;
114 } 191 }
115 192
116 home = getenv("HOME"); 193 mcabber_conf_dir = settings_get_mcabber_config_dir();
117 if (!home) { 194 if (!mcabber_conf_dir)
118 scr_LogPrint(LPRINT_LOG, "Can't find home dir!"); 195 return -1;
119 fprintf(stderr, "Can't find home dir!\n"); 196
197 def_filename = g_strdup_printf("%s/mcabberrc", mcabber_conf_dir);
198 if ((fp = fopen(def_filename, "r")) == NULL) {
199 fprintf(stderr, "Cannot open config file!\n");
200 g_free(def_filename);
120 err = -1; 201 err = -1;
121 goto cfg_read_file_return; 202 goto cfg_read_file_return;
122 } 203 }
123 sfilename = g_string_new("");
124 g_string_printf(sfilename, "%s/.mcabber/mcabberrc", home);
125 if ((fp = fopen(sfilename->str, "r")) == NULL) {
126 // 2nd try...
127 g_string_printf(sfilename, "%s/.mcabberrc", home);
128 if ((fp = fopen(sfilename->str, "r")) == NULL) {
129 fprintf(stderr, "Cannot open config file!\n");
130 g_string_free(sfilename, TRUE);
131 err = -1;
132 goto cfg_read_file_return;
133 }
134 }
135 // Check configuration file permissions 204 // Check configuration file permissions
136 // As it could contain sensitive data, we make it user-readable only. 205 // As it could contain sensitive data, we make it user-readable only.
137 checkset_perm(sfilename->str, TRUE); 206 checkset_perm(def_filename, TRUE);
138 scr_LogPrint(LPRINT_LOGNORM, "Reading %s", sfilename->str); 207 scr_log_print(LPRINT_LOGNORM, "Reading %s", def_filename);
139 // Check mcabber dir. Here we just warn, we don't change the modes. 208 // Check mcabber dir. Here we just warn, we don't change the modes.
140 g_string_printf(sfilename, "%s/.mcabber/", home); 209 checkset_perm(mcabber_conf_dir, FALSE);
141 checkset_perm(sfilename->str, FALSE); 210 g_free(def_filename);
142 g_string_free(sfilename, TRUE);
143 } else { 211 } else {
144 // filename was specified 212 // filename was specified
145 if ((fp = fopen(filename, "r")) == NULL) { 213 if ((fp = fopen(filename, "r")) == NULL) {
146 const char *msg = "Cannot open configuration file"; 214 const char *msg = "Cannot open configuration file";
147 if (mainfile) 215 if (mainfile)