/[imapfilter]/imapfilter/account.c
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Annotation of /imapfilter/account.c

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Revision 1.1 - (hide annotations)
Thu Jul 31 15:46:02 2003 UTC (17 years, 4 months ago) by lefcha
Branch: MAIN
File MIME type: text/plain
Broke up program files and created some new header files.

1 lefcha 1.1 #include <stdio.h>
2     #include <string.h>
3     #include <ctype.h>
4     #include <limits.h>
5    
6     #include "config.h"
7     #include "imapfilter.h"
8     #include "account.h"
9     #include "struct.h"
10    
11    
12     extern unsigned int flags;
13    
14     account_t *accounts = NULL; /* First node of accounts linked list. */
15     mboxgrp_t *mboxgrps = NULL; /* First node of mailbox-groups tree. */
16    
17     static account_t *cur_acct = NULL; /* Current account. */
18    
19    
20     void init_account(account_t * node);
21    
22     void init_mboxgrp(mboxgrp_t * node);
23     void process_mboxgrp(mboxgrp_t * node, char *mboxs);
24    
25     void init_mbox(mbox_t * node);
26     mbox_t *set_mbox(char *name);
27    
28     int string_decode(char *str);
29    
30    
31     /*
32     * Set new account's variables to safe values.
33     */
34     void
35     init_account(account_t * node)
36     {
37     node->next = NULL;
38     node->key[0] = node->server[0] = '\0';
39     node->username[0] = node->password[0] = '\0';
40     node->passwdattr = PASSWORD_NONE;
41     node->port = 143;
42     node->ssl = SSL_DISABLED;
43     node->mboxes = NULL;
44     }
45    
46    
47     /*
48     * A new account entry was declared. Create it and set it's variables
49     * accordingly.
50     */
51     int
52     set_account(char *line, regmatch_t * m)
53     {
54     int n;
55     char p[6];
56     account_t *node;
57    
58     node = (account_t *) xmalloc(sizeof(account_t));
59     node->password = (char *)smalloc(PASSWORD_LEN);
60    
61     init_account(node);
62    
63     strncat(node->key, line + m[1].rm_so,
64     min(m[1].rm_eo - m[1].rm_so, KEY_LEN - 1));
65    
66     #ifdef DEBUG
67     fprintf(stderr, "debug: ACCOUNT: '%s'\n", node->key);
68     #endif
69    
70     if (m[3].rm_so != -1) {
71     strncat(node->username, line + m[3].rm_so,
72     min(m[3].rm_eo - m[3].rm_so, USERNAME_LEN - 1));
73     } else {
74     strncat(node->username, line + m[5].rm_so,
75     min(m[5].rm_eo - m[5].rm_so, USERNAME_LEN - 1));
76     }
77     if (strchr(node->username, '%'))
78     if (string_decode(node->username))
79     return ERROR_CONFIG_PARSE;
80    
81     #ifdef DEBUG
82     fprintf(stderr, "debug: USERNAME: '%s'\n", node->username);
83     #endif
84    
85     if (m[4].rm_so != -1) {
86     strncat(node->password, line + m[4].rm_so,
87     min(m[4].rm_eo - m[4].rm_so, PASSWORD_LEN - 1));
88     if (strchr(node->password, '%'))
89     if (string_decode(node->password))
90     return ERROR_CONFIG_PARSE;
91     node->passwdattr = PASSWORD_PLAIN;
92     } else
93     flags |= FLAG_BLANK_PASSWORD;
94    
95     #ifdef DEBUG
96     fprintf(stderr, "debug: PASSWORD: '%s'\n", node->password);
97     #endif
98    
99     strncat(node->server, line + m[6].rm_so,
100     min(m[6].rm_eo - m[6].rm_so, SERVER_LEN - 1));
101    
102     #ifdef DEBUG
103     fprintf(stderr, "debug: SERVER: '%s'\n", node->server);
104     #endif
105    
106     if (m[7].rm_so != -1) {
107     n = min(m[7].rm_eo - m[7].rm_so - 1, 5);
108     xstrncpy(p, line + m[7].rm_so + 1, n);
109     p[n] = '\0';
110     node->port = strtoul(p, NULL, 10);
111     #ifdef DEBUG
112     fprintf(stderr, "debug: PORT: %d\n", node->port);
113     #endif
114     }
115     if (m[8].rm_so != -1) {
116     if (m[7].rm_so == -1)
117     node->port = 993;
118    
119     if (strcasestr(line + m[8].rm_so, "SSL2"))
120     node->ssl = SSL_SSL_V2;
121     else if (strcasestr(line + m[8].rm_so, "SSL3"))
122     node->ssl = SSL_SSL_V3;
123     else
124     node->ssl = SSL_TLS_V1;
125     }
126     APPEND_LINKED_LIST(accounts, node, account);
127     cur_acct = node;
128    
129     return 0;
130     }
131    
132    
133     #ifdef ENCRYPTED_PASSWORDS
134     /*
135     * Find accounts without a password (candicates for password encryption).
136     */
137     char *
138     find_password(char *user, char *serv)
139     {
140     account_t *a;
141    
142     for (a = accounts; a != NULL; a = a->next)
143     if (a->passwdattr == PASSWORD_NONE &&
144     !strcmp(a->server, serv) && !strcmp(a->username, user)) {
145     a->passwdattr = PASSWORD_ENCRYPTED;
146     return a->password;
147     }
148     return NULL;
149     }
150     #endif
151    
152    
153     /*
154     * Set new mailbox-group's variables to safe values.
155     */
156     void
157     init_mboxgrp(mboxgrp_t * node)
158     {
159     node->left = node->right = NULL;
160     node->key[0] = '\0';
161     node->mboxes[0] = NULL;
162     }
163    
164    
165     /*
166     * A new mailbox-group entry was declared. Create it and set it's variables
167     * accordingly.
168     */
169     int
170     set_mboxgrp(char *line, regmatch_t * m)
171     {
172     mboxgrp_t *node;
173     char mboxs[LINE_MAX];
174    
175     mboxs[0] = '\0';
176    
177     if (accounts == NULL)
178     return ERROR_CONFIG_PARSE;
179    
180     node = (mboxgrp_t *) xmalloc(sizeof(mboxgrp_t));
181    
182     init_mboxgrp(node);
183    
184     strncat(node->key, line + m[1].rm_so,
185     min(m[1].rm_eo - m[1].rm_so, KEY_LEN - 1));
186    
187     #ifdef DEBUG
188     fprintf(stderr, "debug: FOLDER: '%s'\n", node->key);
189     #endif
190    
191     strncat(mboxs, line + m[2].rm_so,
192     min(m[2].rm_eo - m[2].rm_so, LINE_MAX - 1));
193    
194     process_mboxgrp(node, mboxs);
195    
196     INSERT_TREE(mboxgrps, node, mboxgrp);
197    
198     return 0;
199     }
200    
201    
202     /*
203     * Calls set_mbox() in order to create mailboxes that are part of
204     * the mailbox-group.
205     */
206     void
207     process_mboxgrp(mboxgrp_t * node, char *mboxs)
208     {
209     unsigned int i;
210     char *tok;
211    
212     i = 0;
213    
214     tok = strtok_r(mboxs, ",", &mboxs);
215     while (i < MBOXGRP_MBOXES_MAX - 1 && tok != NULL) {
216     node->mboxes[i] = (mbox_t *) set_mbox(tok);
217     node->mboxes[++i] = NULL;
218    
219     tok = strtok_r(NULL, ",", &mboxs);
220     }
221     }
222    
223    
224     /*
225     * Set new mailbox's variables to safe values.
226     */
227     void
228     init_mbox(mbox_t * node)
229     {
230     node->next = NULL;
231     node->name[0] = '\0';
232     node->filters[0] = NULL;
233     }
234    
235    
236     /*
237     * A new mailbox was declared, create it and set it's variables accordingly.
238     */
239     mbox_t *
240     set_mbox(char *name)
241     {
242     char s[MBOX_NAME_LEN];
243     mbox_t *node, *m;
244    
245     *s = '\0';
246    
247     if (*name == '"' && *(name + strlen(name) - 1) == '"')
248     strncat(s, name + 1, min(strlen(name) - 2, MBOX_NAME_LEN - 1));
249     else
250     strncat(s, name, min(strlen(name), MBOX_NAME_LEN - 1));
251    
252     for (m = cur_acct->mboxes; m != NULL; m = m->next)
253     if (!strcmp(m->name, s))
254     return m;
255    
256     node = (mbox_t *) xmalloc(sizeof(mbox_t));
257    
258     init_mbox(node);
259    
260     strncat(node->name, s, MBOX_NAME_LEN - 1);
261    
262     #ifdef DEBUG
263     fprintf(stderr, "debug: MBOX: '%s'\n", node->name);
264     #endif
265    
266     APPEND_LINKED_LIST(cur_acct->mboxes, node, mbox);
267    
268     return node;
269     }
270    
271    
272     /*
273     * Decode the character triplet, consisting of the character '%'
274     * followed by two hexadecimal digits to its corresponding ASCII
275     * character (described in Section 2.2 of RFC 1738).
276     */
277     int
278     string_decode(char *str)
279     {
280     char *c;
281     char hex[3];
282    
283     c = str;
284    
285     while (*c != '\0') {
286     if (*c == '%') {
287     if (!isxdigit((unsigned char)(*(c + 1))) ||
288     !isxdigit((unsigned char)(*(c + 2))))
289     return ERROR_CONFIG_PARSE;
290    
291     xstrncpy(hex, ++c, 2);
292     hex[2] = '\0';
293    
294     if (!isprint((unsigned char)(*str = (char)strtoul(hex,
295     NULL, 16))))
296     return ERROR_CONFIG_PARSE;
297    
298     str++;
299     c += 2;
300     } else
301     *(str++) = *(c++);
302     }
303     *str = '\0';
304    
305     return 0;
306     }
307    
308    
309     /*
310     * Convert the names of personal mailboxes using the namespace specified
311     * by the mail server.
312     */
313     char *
314     apply_namespace(char *mbox, char *prefix, char delim)
315     {
316     static char m[MBOX_NAME_LEN];
317     char *c;
318    
319     if ((prefix[0] == '\0' && delim == '\0') ||
320     (prefix[0] == '\0' && delim == '/') ||
321     !strcasecmp(mbox, "INBOX"))
322     return mbox;
323    
324     m[0] = '\0';
325     strncat(m, prefix, MBOX_NAME_LEN - 1);
326     strncat(m, mbox, MBOX_NAME_LEN - strlen(m) - 1);
327    
328     c = m;
329     while ((c = strchr(c, '/')))
330     *(c++) = delim;
331    
332     #ifdef DEBUG
333     fprintf(stderr, "debug: MAILBOX: '%s'\n", m);
334     #endif
335    
336     return m;
337     }

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