[5ebff60] | 1 | /********************************************************************\ |
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[b7d3cc34] | 2 | * BitlBee -- An IRC to other IM-networks gateway * |
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| 3 | * * |
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[03886fc] | 4 | * Copyright 2002-2013 Wilmer van der Gaast and others * |
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[b7d3cc34] | 5 | \********************************************************************/ |
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| 6 | |
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| 7 | /* Some stuff to register, handle and save user preferences */ |
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| 8 | |
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| 9 | /* |
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| 10 | This program is free software; you can redistribute it and/or modify |
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| 11 | it under the terms of the GNU General Public License as published by |
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| 12 | the Free Software Foundation; either version 2 of the License, or |
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| 13 | (at your option) any later version. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, |
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | GNU General Public License for more details. |
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| 19 | |
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| 20 | You should have received a copy of the GNU General Public License with |
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| 21 | the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; |
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[6f10697] | 22 | if not, write to the Free Software Foundation, Inc., 51 Franklin St., |
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| 23 | Fifth Floor, Boston, MA 02110-1301 USA |
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[b7d3cc34] | 24 | */ |
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[03886fc] | 25 | |
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[b7d3cc34] | 26 | #define BITLBEE_CORE |
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| 27 | #include "bitlbee.h" |
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| 28 | |
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[7125cb3] | 29 | /* Used to use NULL for this, but NULL is actually a "valid" value. */ |
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| 30 | char *SET_INVALID = "nee"; |
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| 31 | |
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[5ebff60] | 32 | set_t *set_add(set_t **head, const char *key, const char *def, set_eval eval, void *data) |
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[b7d3cc34] | 33 | { |
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[5ebff60] | 34 | set_t *s = set_find(head, key); |
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| 35 | |
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[5c9512f] | 36 | /* Possibly the setting already exists. If it doesn't exist yet, |
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| 37 | we create it. If it does, we'll just change the default. */ |
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[5ebff60] | 38 | if (!s) { |
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| 39 | if ((s = *head)) { |
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[03886fc] | 40 | /* Sorted insertion. Special-case insertion at the start. */ |
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[5ebff60] | 41 | if (strcmp(key, s->key) < 0) { |
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| 42 | s = g_new0(set_t, 1); |
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[03886fc] | 43 | s->next = *head; |
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| 44 | *head = s; |
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[5ebff60] | 45 | } else { |
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| 46 | while (s->next && strcmp(key, s->next->key) > 0) { |
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[03886fc] | 47 | s = s->next; |
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[5ebff60] | 48 | } |
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[03886fc] | 49 | set_t *last_next = s->next; |
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[5ebff60] | 50 | s->next = g_new0(set_t, 1); |
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[03886fc] | 51 | s = s->next; |
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| 52 | s->next = last_next; |
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| 53 | } |
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[5ebff60] | 54 | } else { |
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| 55 | s = *head = g_new0(set_t, 1); |
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[b7d3cc34] | 56 | } |
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[5ebff60] | 57 | s->key = g_strdup(key); |
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[b7d3cc34] | 58 | } |
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[5ebff60] | 59 | |
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| 60 | if (s->def) { |
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| 61 | g_free(s->def); |
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[b7d3cc34] | 62 | s->def = NULL; |
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| 63 | } |
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[5ebff60] | 64 | if (def) { |
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| 65 | s->def = g_strdup(def); |
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| 66 | } |
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| 67 | |
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[5c9512f] | 68 | s->eval = eval; |
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| 69 | s->data = data; |
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[5ebff60] | 70 | |
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[5c9512f] | 71 | return s; |
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[b7d3cc34] | 72 | } |
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| 73 | |
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[5ebff60] | 74 | set_t *set_find(set_t **head, const char *key) |
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[b7d3cc34] | 75 | { |
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[5c9512f] | 76 | set_t *s = *head; |
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[5ebff60] | 77 | |
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| 78 | while (s) { |
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| 79 | if (g_strcasecmp(s->key, key) == 0 || |
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| 80 | (s->old_key && g_strcasecmp(s->old_key, key) == 0)) { |
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[b7d3cc34] | 81 | break; |
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[5ebff60] | 82 | } |
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[b7d3cc34] | 83 | s = s->next; |
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| 84 | } |
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[5ebff60] | 85 | |
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[5c9512f] | 86 | return s; |
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[b7d3cc34] | 87 | } |
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| 88 | |
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[5ebff60] | 89 | char *set_getstr(set_t **head, const char *key) |
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[b7d3cc34] | 90 | { |
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[5ebff60] | 91 | set_t *s = set_find(head, key); |
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| 92 | |
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| 93 | if (!s || (!s->value && !s->def)) { |
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[5c9512f] | 94 | return NULL; |
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[5ebff60] | 95 | } |
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| 96 | |
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| 97 | return set_value(s); |
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[b7d3cc34] | 98 | } |
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| 99 | |
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[5ebff60] | 100 | int set_getint(set_t **head, const char *key) |
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[b7d3cc34] | 101 | { |
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[5ebff60] | 102 | char *s = set_getstr(head, key); |
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[b7d3cc34] | 103 | int i = 0; |
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[5ebff60] | 104 | |
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| 105 | if (!s) { |
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[5c9512f] | 106 | return 0; |
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[5ebff60] | 107 | } |
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| 108 | |
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| 109 | if (sscanf(s, "%d", &i) != 1) { |
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[5c9512f] | 110 | return 0; |
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[5ebff60] | 111 | } |
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| 112 | |
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[5c9512f] | 113 | return i; |
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[b7d3cc34] | 114 | } |
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| 115 | |
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[5ebff60] | 116 | int set_getbool(set_t **head, const char *key) |
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[5100caa] | 117 | { |
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[5ebff60] | 118 | char *s = set_getstr(head, key); |
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| 119 | |
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| 120 | if (!s) { |
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[5100caa] | 121 | return 0; |
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[5ebff60] | 122 | } |
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| 123 | |
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| 124 | return bool2int(s); |
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[5100caa] | 125 | } |
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| 126 | |
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[5ebff60] | 127 | int set_isvisible(set_t *set) |
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[06b5893] | 128 | { |
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| 129 | /* the default value is not stored in value, only in def */ |
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[5ebff60] | 130 | return !((set->flags & SET_HIDDEN) || |
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| 131 | ((set->flags & SET_HIDDEN_DEFAULT) && |
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| 132 | (set->value == NULL))); |
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[06b5893] | 133 | } |
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| 134 | |
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[5ebff60] | 135 | int set_setstr(set_t **head, const char *key, char *value) |
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[b7d3cc34] | 136 | { |
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[5ebff60] | 137 | set_t *s = set_find(head, key); |
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[b7d3cc34] | 138 | char *nv = value; |
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[5ebff60] | 139 | |
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| 140 | if (!s) { |
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[7125cb3] | 141 | /* |
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| 142 | Used to do this, but it never really made sense. |
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[5c9512f] | 143 | s = set_add( head, key, NULL, NULL, NULL ); |
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[7125cb3] | 144 | */ |
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| 145 | return 0; |
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[5ebff60] | 146 | } |
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| 147 | |
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| 148 | if (value == NULL && (s->flags & SET_NULL_OK) == 0) { |
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[7125cb3] | 149 | return 0; |
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[5ebff60] | 150 | } |
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| 151 | |
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[7125cb3] | 152 | /* Call the evaluator. For invalid values, evaluators should now |
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| 153 | return SET_INVALID, but previously this was NULL. Try to handle |
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| 154 | that too if NULL is not an allowed value for this setting. */ |
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[5ebff60] | 155 | if (s->eval && ((nv = s->eval(s, value)) == SET_INVALID || |
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| 156 | ((s->flags & SET_NULL_OK) == 0 && nv == NULL))) { |
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[5c9512f] | 157 | return 0; |
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[5ebff60] | 158 | } |
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| 159 | |
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| 160 | if (s->value) { |
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| 161 | g_free(s->value); |
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[b7d3cc34] | 162 | s->value = NULL; |
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| 163 | } |
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[5ebff60] | 164 | |
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[5c9512f] | 165 | /* If there's a default setting and it's equal to what we're trying to |
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| 166 | set, stick with s->value = NULL. Otherwise, remember the setting. */ |
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[5ebff60] | 167 | if (!s->def || (strcmp(nv, s->def) != 0)) { |
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| 168 | s->value = g_strdup(nv); |
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| 169 | } |
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| 170 | |
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| 171 | if (nv != value) { |
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| 172 | g_free(nv); |
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| 173 | } |
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| 174 | |
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[5c9512f] | 175 | return 1; |
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[b7d3cc34] | 176 | } |
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| 177 | |
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[5ebff60] | 178 | int set_setint(set_t **head, const char *key, int value) |
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[b7d3cc34] | 179 | { |
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[5ebff60] | 180 | char *s = g_strdup_printf("%d", value); |
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| 181 | int retval = set_setstr(head, key, s); |
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| 182 | |
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| 183 | g_free(s); |
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[434ffa2] | 184 | return retval; |
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[b7d3cc34] | 185 | } |
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| 186 | |
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[5ebff60] | 187 | void set_del(set_t **head, const char *key) |
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[b7d3cc34] | 188 | { |
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[5c9512f] | 189 | set_t *s = *head, *t = NULL; |
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[5ebff60] | 190 | |
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| 191 | while (s) { |
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| 192 | if (g_strcasecmp(s->key, key) == 0) { |
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[b7d3cc34] | 193 | break; |
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[5ebff60] | 194 | } |
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| 195 | s = (t = s)->next; |
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[b7d3cc34] | 196 | } |
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[5ebff60] | 197 | if (s) { |
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| 198 | if (t) { |
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[dd89a55] | 199 | t->next = s->next; |
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[5ebff60] | 200 | } else { |
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[5c9512f] | 201 | *head = s->next; |
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[5ebff60] | 202 | } |
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| 203 | |
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| 204 | g_free(s->key); |
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| 205 | g_free(s->old_key); |
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| 206 | g_free(s->value); |
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| 207 | g_free(s->def); |
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| 208 | g_free(s); |
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[b7d3cc34] | 209 | } |
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| 210 | } |
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| 211 | |
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[5ebff60] | 212 | int set_reset(set_t **head, const char *key) |
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[cd428e4] | 213 | { |
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| 214 | set_t *s; |
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[5ebff60] | 215 | |
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| 216 | s = set_find(head, key); |
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| 217 | if (s) { |
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| 218 | return set_setstr(head, key, s->def); |
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| 219 | } |
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| 220 | |
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[f3579fd] | 221 | return 0; |
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[cd428e4] | 222 | } |
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| 223 | |
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[5ebff60] | 224 | char *set_eval_int(set_t *set, char *value) |
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[b7d3cc34] | 225 | { |
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[6237ded] | 226 | char *s = value; |
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[5ebff60] | 227 | |
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[5eec897] | 228 | /* Allow a minus at the first position. */ |
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[5ebff60] | 229 | if (*s == '-') { |
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| 230 | s++; |
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| 231 | } |
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| 232 | |
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| 233 | for (; *s; s++) { |
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| 234 | if (!g_ascii_isdigit(*s)) { |
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[7125cb3] | 235 | return SET_INVALID; |
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[5ebff60] | 236 | } |
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| 237 | } |
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| 238 | |
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[5c9512f] | 239 | return value; |
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[b7d3cc34] | 240 | } |
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| 241 | |
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[5ebff60] | 242 | char *set_eval_bool(set_t *set, char *value) |
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[b7d3cc34] | 243 | { |
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[5ebff60] | 244 | return is_bool(value) ? value : SET_INVALID; |
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[b7d3cc34] | 245 | } |
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| 246 | |
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[5ebff60] | 247 | char *set_eval_list(set_t *set, char *value) |
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[56244c0] | 248 | { |
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| 249 | GSList *options = set->eval_data, *opt; |
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[5ebff60] | 250 | |
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| 251 | for (opt = options; opt; opt = opt->next) { |
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| 252 | if (strcmp(value, opt->data) == 0) { |
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[56244c0] | 253 | return value; |
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[5ebff60] | 254 | } |
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| 255 | } |
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| 256 | |
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[56244c0] | 257 | /* TODO: It'd be nice to show the user a list of allowed values, |
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| 258 | but we don't have enough context here to do that. May |
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| 259 | want to fix that. */ |
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[5ebff60] | 260 | |
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[56244c0] | 261 | return NULL; |
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| 262 | } |
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| 263 | |
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[5ebff60] | 264 | char *set_eval_to_char(set_t *set, char *value) |
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[b7d3cc34] | 265 | { |
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[5ebff60] | 266 | char *s = g_new(char, 3); |
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| 267 | |
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| 268 | if (*value == ' ') { |
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| 269 | strcpy(s, " "); |
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| 270 | } else { |
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| 271 | sprintf(s, "%c ", *value); |
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| 272 | } |
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| 273 | |
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[5c9512f] | 274 | return s; |
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[b7d3cc34] | 275 | } |
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| 276 | |
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[5ebff60] | 277 | char *set_eval_oauth(set_t *set, char *value) |
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[b7d3cc34] | 278 | { |
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[ce199b7] | 279 | account_t *acc = set->data; |
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[5ebff60] | 280 | |
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| 281 | if (bool2int(value) && strcmp(acc->pass, PASSWORD_PENDING) == 0) { |
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[ce199b7] | 282 | *acc->pass = '\0'; |
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[5ebff60] | 283 | } |
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| 284 | |
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| 285 | return set_eval_bool(set, value); |
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[b7d3cc34] | 286 | } |
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