imapfilter/imapfilter/data.c

#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <regex.h>
#include <string.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/stat.h>
#include <ctype.h>

#include "config.h"
#include "imapfilter.h"
#include "data.h"


account_t *accounts = NULL;     /* First node of accounts linked list. */
filter_t *filters = NULL;       /* First node of filters tree. */

static mboxgrp_t *mboxgrps = NULL;      /* First node of mailbox-groups
                                           tree. */

static account_t *cur_acct = NULL;      /* Current account. */
static filter_t *cur_fltr = NULL;       /* Current filter. */


/*
 * Set new account's variables to safe values.
 */
void init_account(account_t * node)
{
    node->next = NULL;
    node->server[0] = node->username[0] = node->password[0] = 0;
    node->port = 143;
    node->mboxes = NULL;
}


/*
 * Append account node to linked list.
 */
void append_account(account_t * node)
{
    account_t *pos;
    account_t **app;

    APPEND_LINKED_LIST(accounts, node, pos, app);
}


/*
 * A new account entry was declared. Create it and set it's variables
 * accordingly.
 */
int set_account(char *line, regmatch_t * match)
{
    int s;
    char p[6];
    account_t *node;

    node = (account_t *) create_node(sizeof(account_t));

    init_account(node);

    strncat(node->username, line + match[1].rm_so,
            min(match[1].rm_eo - match[1].rm_so, USERNAME_LEN - 1));
    if (strchr(node->username, '%'))
        if (string_decode(node->username))
            return ERROR_CONFIG_PARSE;
#ifdef DEBUG
    printf("debug: USERNAME: '%s'\n", node->username);
#endif

    strncat(node->password, line + match[2].rm_so,
            min(match[2].rm_eo - match[2].rm_so, PASSWORD_LEN - 1));
    if (strchr(node->password, '%'))
        if (string_decode(node->password))
            return ERROR_CONFIG_PARSE;
#ifdef DEBUG
    printf("debug: PASSWORD: '%s'\n", node->password);
#endif

    strncat(node->server, line + match[3].rm_so,
            min(match[3].rm_eo - match[3].rm_so, SERVER_LEN - 1));
#ifdef DEBUG
    printf("debug: SERVER: '%s'\n", node->server);
#endif

    if (match[4].rm_so != -1) {
        s = min(match[4].rm_eo - match[4].rm_so - 1, 5);
        strncpy(p, line + match[4].rm_so + 1, s);
        p[s] = 0;
        node->port = strtoul(p, NULL, 0);
#ifdef DEBUG
        printf("debug: PORT: %d\n", node->port);
#endif
    }
    append_account(node);
    cur_acct = node;

    return 0;
}


/*
 * Set new mailbox-group's variables to safe values.
 */
void init_mboxgrp(mboxgrp_t * node)
{
    node->left = node->right = NULL;
    node->key[0] = 0;
    node->mboxes[0] = NULL;
}


/*
 * Insert mailbox-group node in tree.
 */
void insert_mboxgrp(mboxgrp_t * node)
{
    int cmp;
    mboxgrp_t *pos;
    mboxgrp_t **ins;

    INSERT_TREE(mboxgrps, node, pos, ins, cmp);
}


/*
 * A new mailbox-group entry was declared. Create it and set it's variables
 * accordingly.
 */
int set_mboxgrp(char *line, regmatch_t * match)
{
    mboxgrp_t *node;
    char mboxs[LINE_MAX];

    mboxs[0] = 0;

    if (!accounts)
        return ERROR_CONFIG_PARSE;

    node = (mboxgrp_t *) create_node(sizeof(mboxgrp_t));

    init_mboxgrp(node);

    strncat(node->key, line + match[1].rm_so,
            min(match[1].rm_eo - match[1].rm_so, KEY_LEN - 1));

#ifdef DEBUG
    printf("debug: FOLDER: '%s'\n", node->key);
#endif

    strncat(mboxs, line + match[2].rm_so,
            min(match[2].rm_eo - match[2].rm_so, LINE_MAX - 1));

    process_mboxgrp(node, mboxs);

    insert_mboxgrp(node);

    return 0;
}


/*
 * Calls set_mbox() in order to create mailboxes that are part of
 * the mailbox-group.
 */
void process_mboxgrp(mboxgrp_t * node, char *mboxs)
{
    int i = 0;
    const char *delim = ",";
    char *tok;

    while (i < MBOXGRP_MBOXES_MAX - 1 && (tok = strsep(&mboxs, delim))) {
        node->mboxes[i] = (mbox_t *) set_mbox(tok);
        node->mboxes[++i] = NULL;
    }
}


/*
 * Find in the mailbox-group tree, the node with the specified key,
 * and return a pointer to it.
 */
mboxgrp_t *find_mboxgrp(char *key)
{
    int cmp;
    mboxgrp_t *pos;

    FIND_TREE(mboxgrps, key, pos, cmp);
}


/*
 * Set new mailbox's variables to safe values.
 */
void init_mbox(mbox_t * node)
{
    node->next = NULL;
    node->name[0] = 0;
    node->filters[0] = NULL;
}


/*
 * Append mailbox node to linked list.
 */
void append_mbox(mbox_t * node)
{
    mbox_t *pos;
    mbox_t **ins;

    APPEND_LINKED_LIST(cur_acct->mboxes, node, pos, ins);
}


/*
 * A new mailbox was declared, create it and set it's variables accordingly.
 */
mbox_t *set_mbox(char *name)
{
    mbox_t *node;

    node = (mbox_t *) create_node(sizeof(mbox_t));

    init_mbox(node);

    strncat(node->name, name,
            min(strlen(name), MBOX_NAME_LEN - 1));

#ifdef DEBUG
    printf("debug: MBOX: '%s'\n", node->name);
#endif

    append_mbox(node);

    return node;
}


/*
 * Set new filter's variables to safe values.
 */
void init_filter(filter_t * node)
{
    node->left = node->right = NULL;
    node->key[0] = 0;
    node->mode = FILTER_MODE_AND;
    node->action.type = 0;
    node->action.destmbox[0] = node->action.args[0] = 0;
    node->masks = NULL;
    node->masknum = node->masklen = 0;
}


/*
 * Insert filter node to tree.
 */
void insert_filter(filter_t * node)
{
    int cmp;
    filter_t *pos;
    filter_t **ins;

    INSERT_TREE(filters, node, pos, ins, cmp);
}


/*
 * A filter entry was declared, create it and set it's variables accordingly.
 */
int set_filter(char *line, regmatch_t * match)
{
    filter_t *node;

    if (cur_fltr && !cur_fltr->action.type)
        return ERROR_CONFIG_PARSE;

    node = (filter_t *) create_node(sizeof(filter_t));

    init_filter(node);

    strncat(node->key, line + match[1].rm_so,
            min(match[1].rm_eo - match[1].rm_so, KEY_LEN - 1));

    if (match[2].rm_so != -1) {
        if (!strncasecmp(line + match[2].rm_so + 1, "or", 2))
            node->mode = FILTER_MODE_OR;
        else
            node->mode = FILTER_MODE_AND;
    }
#ifdef DEBUG
    printf("debug: FILTER: '%s' %s\n", node->key,
           (node->mode == FILTER_MODE_OR ? "OR" : "AND"));
#endif

    insert_filter(node);
    cur_fltr = node;

    return 0;
}


/*
 * Find in the filter tree, the node with the specified key and
 * return a pointer to it.
 */
filter_t *find_filter(char *key)
{
    int cmp;
    filter_t *pos;

    FIND_TREE(filters, key, pos, cmp);
}


/*
 * Assign an action to the last declared filter.
 */
int set_action(char *line, regmatch_t * match)
{
    if (!cur_fltr)
        return ERROR_CONFIG_PARSE;

    if (!strncasecmp(line + match[1].rm_so, "delete", 6))
        cur_fltr->action.type = FILTER_ACTION_DELETE;
    else if (!strncasecmp(line + match[1].rm_so, "copy", 4)) {
        cur_fltr->action.type = FILTER_ACTION_COPY;
        strncat(cur_fltr->action.destmbox, line + match[2].rm_so,
                min(match[2].rm_eo - match[2].rm_so, MBOX_NAME_LEN - 1));
    } else if (!strncasecmp(line + match[1].rm_so, "move", 4)) {
        cur_fltr->action.type = FILTER_ACTION_MOVE;
        strncat(cur_fltr->action.destmbox, line + match[3].rm_so,
                min(match[3].rm_eo - match[3].rm_so, MBOX_NAME_LEN - 1));
    } else if (!strncasecmp(line + match[1].rm_so, "list", 4))
        cur_fltr->action.type = FILTER_ACTION_LIST;

    if (match[4].rm_so != -1)
        strncat(cur_fltr->action.args, line + match[4].rm_so,
                min(match[4].rm_eo - match[4].rm_so, ARGS_LEN - 1));

    return 0;

}


/*
 * Set new mask's variables to safe values.
 */
void init_mask(mask_t * node)
{
    node->next = NULL;
    node->body[0] = 0;
    node->type = 0;
}


/*
 * Append mask node to linked list.
 */
void append_mask(mask_t * node)
{
    mask_t *pos;
    mask_t **app;

    APPEND_LINKED_LIST(cur_fltr->masks, node, pos, app);
}


/*
 * A new mask entry was declared, create it and set it's
 * variables accordingly.
 */
int set_mask(char *line, regmatch_t * match)
{
    int s, i, f = 0;
    mask_t *node;
    char *bp;

    if (!cur_fltr)
        return ERROR_CONFIG_PARSE;

    node = (mask_t *) create_node(sizeof(mask_t));

    init_mask(node);

    bp = node->body;

    /* If specified set mask's type. */
    if (match[2].rm_so != -1 && cur_fltr->masks) {
        if (!strncasecmp(line + match[2].rm_so, "or", 2))
            node->type = MASK_TYPE_OR;
        else
            node->type = MASK_TYPE_AND;
    }
    /* Add NOT if specified. */
    if (match[3].rm_so != -1) {
        s = min(match[3].rm_eo - match[3].rm_so,
                MASK_BODY_LEN - (bp - node->body) - 1);
        strncpy(bp, line + match[3].rm_so, s);
        string_upper(bp, s);
        *(bp + s - 1) = ' ';    /* In case it's '\t'. */
        *(bp + s) = 0;
        bp += s;
    }
    /* Keyword of the search key. */
    s = min(match[4].rm_eo - match[4].rm_so,
            MASK_BODY_LEN - (bp - node->body) - 3);
    strncpy(bp, line + match[4].rm_so, s);
    string_upper(bp, s);
    *(bp + s) = 0;
    bp += s;

    /* Body of the search key (string/number). */
    for (i = 5; i <= 6; i++)
        if (match[i].rm_so != -1) {
            *(bp++) = ' ';

            /* Add '"' if not supplied and search key not a number. */
            if (match[6].rm_so == -1 &&
                (strstr(node->body, "LARGER") ||
                 strstr(node->body, "SMALLER")))
                f = 1;
            else if (*(line + match[i].rm_so) != '"')
                *(bp++) = '"';

            *bp = 0;

            s = min(match[i].rm_eo - match[i].rm_so,
                    MASK_BODY_LEN - (bp - node->body) - 2);
            strncpy(bp, line + match[i].rm_so, s);
            *(bp + s) = 0;
            bp += s;

            if (*(line + match[i].rm_so) != '"' && !f)
                *(bp++) = '"';
            *bp = 0;
        }
    append_mask(node);

    cur_fltr->masknum++;
    cur_fltr->masklen += (bp - node->body);


#ifdef DEBUG
    printf("debug: MASK: '%s'\n", node->body);
#endif

    return 0;
}


/*
 * A new job was declared, link filters with mailbox-groups.
 */
int set_job(char *line, regmatch_t * match)
{
    int s;
    const char *delim = ",";
    char *ftok, *gtok, *fltr, *mbgrp, *f, *g;
    filter_t *cf;
    mboxgrp_t *cg;

    if (!accounts || !filters)
        return ERROR_CONFIG_PARSE;

    s = match[1].rm_eo - match[1].rm_so;
    fltr = (char *) xmalloc(s + 1);

    f = strncpy(fltr, line + match[1].rm_so, s);
    f[s] = 0;

    s = match[2].rm_eo - match[2].rm_so;
    mbgrp = (char *) xmalloc(s + 1);

    /* Go through filters. */
    while ((ftok = strsep(&f, delim))) {
        cf = (filter_t *) find_filter(ftok);
        if (!cf)
            return ERROR_CONFIG_PARSE;

        g = strncpy(mbgrp, line + match[2].rm_so, s);
        g[s] = 0;

        /* Go through mailbox groups. */
        while ((gtok = strsep(&g, delim))) {
            cg = (mboxgrp_t *) find_mboxgrp(gtok);
            if (!cg)
                return ERROR_CONFIG_PARSE;
            link_mbox_filter(cf, cg);
        }
    }

    free(fltr);
    free(mbgrp);

    return 0;
}


/*
 * Link a filter with a mailbox.
 */
void link_mbox_filter(filter_t * cf, mboxgrp_t * cg)
{
    int i, j;
    int f;

    for (i = 0; cg->mboxes[i]; i++) {

        for (f = j = 0; cg->mboxes[i]->filters[j]; j++)
            if (j == MBOX_FILTERS_MAX - 1 ||
              !strncmp(cf->key, cg->mboxes[i]->filters[j]->key, KEY_LEN))
                f = 1;

        if (f)
            continue;

        cg->mboxes[i]->filters[j] = cf;
        cg->mboxes[i]->filters[j + 1] = NULL;

    }

#ifdef DEBUG
    printf("debug: JOB: '%s' '%s'\n", cf->key, cg->key);
#endif
}


/*
 * Free allocated memory of data structures that are not needed anymore.
 */
void destroy_data(void)
{
    destroy_mboxgrp(mboxgrps);
}


/*
 * Go through the mailbox-group tree, and free the memory of each node.
 */
void destroy_mboxgrp(mboxgrp_t * node)
{
    if (node->left) {
        destroy_mboxgrp(node->left);
        node->left = NULL;
    }
    if (node->right) {
        destroy_mboxgrp(node->right);
        node->right = NULL;
    }
#ifdef DEBUG
    printf("debug: deleting FOLDER: '%s'\n", node->key);
#endif

    free(node);
}


/*
 * Convert a string of specified size to upper case.
 */
void string_upper(char *str, size_t size)
{
    int i;

    for (i = 0; i < size; i++, str++)
        if (islower(*str))
            *str = toupper(*str);
}


/*
 * Decode the character triplet, consisting of the character '%'
 * followed by two hexadecimal digits to its corresponding ASCII
 * character (described in Section 2.2 of RFC 1738).
 */
int string_decode(char *str)
{
    char *c;
    char hex[3];

    c = str;

    while (*c) {
        if (*c == '%') {
            if (!isxdigit(*(c + 1)) || !isxdigit(*(c + 2)))
                return ERROR_CONFIG_PARSE;

            strncpy(hex, ++c, 2);
            hex[2] = 0;

            if (!isprint(*str = (char) strtoul(hex, NULL, 16)))
                return ERROR_CONFIG_PARSE;

            str++;
            c += 2;
        } else
            *(str++) = *(c++);
    }
    *str = 0;

    return 0;
}
1	lefcha	1.1	#include <stdio.h>
2			#include <errno.h>
3			#include <sys/types.h>
4			#include <regex.h>
5			#include <string.h>
6			#include <stdlib.h>
7			#include <limits.h>
8			#include <sys/stat.h>
9	lefcha	1.2	#include <ctype.h>
10	lefcha	1.1
11			#include "config.h"
12			#include "imapfilter.h"
13			#include "data.h"
14
15
16			account_t accounts = NULL; / First node of accounts linked list. */
17			filter_t filters = NULL; / First node of filters tree. */
18
19	lefcha	1.5	static mboxgrp_t mboxgrps = NULL; / First node of mailbox-groups
20			tree. */
21	lefcha	1.1
22			static account_t cur_acct = NULL; / Current account. */
23			static filter_t cur_fltr = NULL; / Current filter. */
24
25
26			/*
27			* Set new account's variables to safe values.
28			*/
29			void init_account(account_t * node)
30			{
31			node->next = NULL;
32			node->server[0] = node->username[0] = node->password[0] = 0;
33			node->port = 143;
34			node->mboxes = NULL;
35			}
36
37
38			/*
39			* Append account node to linked list.
40			*/
41			void append_account(account_t * node)
42			{
43			account_t *pos;
44			account_t **app;
45
46			APPEND_LINKED_LIST(accounts, node, pos, app);
47			}
48
49
50			/*
51			* A new account entry was declared. Create it and set it's variables
52			* accordingly.
53			*/
54			int set_account(char line, regmatch_t match)
55			{
56			int s;
57			char p[6];
58			account_t *node;
59	lefcha	1.5
60	lefcha	1.1	node = (account_t *) create_node(sizeof(account_t));
61
62			init_account(node);
63
64	lefcha	1.5	strncat(node->username, line + match[1].rm_so,
65	lefcha	1.4	min(match[1].rm_eo - match[1].rm_so, USERNAME_LEN - 1));
66	lefcha	1.8	if (strchr(node->username, '%'))
67			if (string_decode(node->username))
68			return ERROR_CONFIG_PARSE;
69	lefcha	1.1	#ifdef DEBUG
70			printf("debug: USERNAME: '%s'\n", node->username);
71			#endif
72
73	lefcha	1.5	strncat(node->password, line + match[2].rm_so,
74			min(match[2].rm_eo - match[2].rm_so, PASSWORD_LEN - 1));
75	lefcha	1.8	if (strchr(node->password, '%'))
76			if (string_decode(node->password))
77			return ERROR_CONFIG_PARSE;
78	lefcha	1.1	#ifdef DEBUG
79			printf("debug: PASSWORD: '%s'\n", node->password);
80			#endif
81
82	lefcha	1.4	strncat(node->server, line + match[3].rm_so,
83			min(match[3].rm_eo - match[3].rm_so, SERVER_LEN - 1));
84	lefcha	1.1	#ifdef DEBUG
85			printf("debug: SERVER: '%s'\n", node->server);
86			#endif
87
88	lefcha	1.4	if (match[4].rm_so != -1) {
89			s = min(match[4].rm_eo - match[4].rm_so - 1, 5);
90			strncpy(p, line + match[4].rm_so + 1, s);
91	lefcha	1.1	p[s] = 0;
92			node->port = strtoul(p, NULL, 0);
93			#ifdef DEBUG
94			printf("debug: PORT: %d\n", node->port);
95			#endif
96			}
97			append_account(node);
98			cur_acct = node;
99
100			return 0;
101			}
102
103
104			/*
105			* Set new mailbox-group's variables to safe values.
106			*/
107			void init_mboxgrp(mboxgrp_t * node)
108			{
109			node->left = node->right = NULL;
110	lefcha	1.4	node->key[0] = 0;
111	lefcha	1.1	node->mboxes[0] = NULL;
112			}
113
114
115			/*
116			* Insert mailbox-group node in tree.
117			*/
118			void insert_mboxgrp(mboxgrp_t * node)
119			{
120			int cmp;
121			mboxgrp_t *pos;
122			mboxgrp_t **ins;
123
124			INSERT_TREE(mboxgrps, node, pos, ins, cmp);
125			}
126
127
128			/*
129			* A new mailbox-group entry was declared. Create it and set it's variables
130			* accordingly.
131			*/
132			int set_mboxgrp(char line, regmatch_t match)
133			{
134			mboxgrp_t *node;
135			char mboxs[LINE_MAX];
136
137	lefcha	1.4	mboxs[0] = 0;
138
139	lefcha	1.1	if (!accounts)
140	lefcha	1.4	return ERROR_CONFIG_PARSE;
141	lefcha	1.1
142			node = (mboxgrp_t *) create_node(sizeof(mboxgrp_t));
143
144			init_mboxgrp(node);
145
146	lefcha	1.4	strncat(node->key, line + match[1].rm_so,
147			min(match[1].rm_eo - match[1].rm_so, KEY_LEN - 1));
148	lefcha	1.1
149			#ifdef DEBUG
150			printf("debug: FOLDER: '%s'\n", node->key);
151			#endif
152
153	lefcha	1.4	strncat(mboxs, line + match[2].rm_so,
154			min(match[2].rm_eo - match[2].rm_so, LINE_MAX - 1));
155	lefcha	1.1
156			process_mboxgrp(node, mboxs);
157
158			insert_mboxgrp(node);
159
160			return 0;
161			}
162
163
164			/*
165			* Calls set_mbox() in order to create mailboxes that are part of
166			* the mailbox-group.
167			*/
168			void process_mboxgrp(mboxgrp_t * node, char *mboxs)
169			{
170			int i = 0;
171			const char *delim = ",";
172			char *tok;
173
174	lefcha	1.4	while (i < MBOXGRP_MBOXES_MAX - 1 && (tok = strsep(&mboxs, delim))) {
175	lefcha	1.1	node->mboxes[i] = (mbox_t *) set_mbox(tok);
176			node->mboxes[++i] = NULL;
177			}
178			}
179
180
181			/*
182			* Find in the mailbox-group tree, the node with the specified key,
183			* and return a pointer to it.
184			*/
185			mboxgrp_t find_mboxgrp(char key)
186			{
187			int cmp;
188			mboxgrp_t *pos;
189
190			FIND_TREE(mboxgrps, key, pos, cmp);
191			}
192
193
194			/*
195			* Set new mailbox's variables to safe values.
196			*/
197			void init_mbox(mbox_t * node)
198			{
199			node->next = NULL;
200	lefcha	1.4	node->name[0] = 0;
201	lefcha	1.1	node->filters[0] = NULL;
202			}
203
204
205			/*
206			* Append mailbox node to linked list.
207			*/
208			void append_mbox(mbox_t * node)
209			{
210			mbox_t *pos;
211			mbox_t **ins;
212
213			APPEND_LINKED_LIST(cur_acct->mboxes, node, pos, ins);
214			}
215
216
217			/*
218			* A new mailbox was declared, create it and set it's variables accordingly.
219			*/
220			mbox_t set_mbox(char name)
221			{
222			mbox_t *node;
223
224			node = (mbox_t *) create_node(sizeof(mbox_t));
225
226			init_mbox(node);
227
228	lefcha	1.5	strncat(node->name, name,
229	lefcha	1.4	min(strlen(name), MBOX_NAME_LEN - 1));
230	lefcha	1.1
231			#ifdef DEBUG
232			printf("debug: MBOX: '%s'\n", node->name);
233			#endif
234
235			append_mbox(node);
236
237			return node;
238			}
239
240
241			/*
242			* Set new filter's variables to safe values.
243			*/
244			void init_filter(filter_t * node)
245			{
246			node->left = node->right = NULL;
247	lefcha	1.4	node->key[0] = 0;
248	lefcha	1.1	node->mode = FILTER_MODE_AND;
249			node->action.type = 0;
250	lefcha	1.9	node->action.destmbox[0] = node->action.args[0] = 0;
251	lefcha	1.1	node->masks = NULL;
252	lefcha	1.4	node->masknum = node->masklen = 0;
253	lefcha	1.1	}
254
255
256			/*
257			* Insert filter node to tree.
258			*/
259			void insert_filter(filter_t * node)
260			{
261			int cmp;
262			filter_t *pos;
263			filter_t **ins;
264
265			INSERT_TREE(filters, node, pos, ins, cmp);
266			}
267
268
269			/*
270			* A filter entry was declared, create it and set it's variables accordingly.
271			*/
272			int set_filter(char line, regmatch_t match)
273			{
274			filter_t *node;
275	lefcha	1.5
276	lefcha	1.4	if (cur_fltr && !cur_fltr->action.type)
277			return ERROR_CONFIG_PARSE;
278	lefcha	1.1
279			node = (filter_t *) create_node(sizeof(filter_t));
280
281			init_filter(node);
282
283	lefcha	1.4	strncat(node->key, line + match[1].rm_so,
284			min(match[1].rm_eo - match[1].rm_so, KEY_LEN - 1));
285	lefcha	1.1
286	lefcha	1.4	if (match[2].rm_so != -1) {
287	lefcha	1.9	if (!strncasecmp(line + match[2].rm_so + 1, "or", 2))
288	lefcha	1.1	node->mode = FILTER_MODE_OR;
289			else
290			node->mode = FILTER_MODE_AND;
291			}
292			#ifdef DEBUG
293			printf("debug: FILTER: '%s' %s\n", node->key,
294			(node->mode == FILTER_MODE_OR ? "OR" : "AND"));
295			#endif
296
297			insert_filter(node);
298			cur_fltr = node;
299
300			return 0;
301			}
302
303
304			/*
305			* Find in the filter tree, the node with the specified key and
306			* return a pointer to it.
307			*/
308			filter_t find_filter(char key)
309			{
310			int cmp;
311			filter_t *pos;
312
313			FIND_TREE(filters, key, pos, cmp);
314			}
315
316
317			/*
318	lefcha	1.5	* Assign an action to the last declared filter.
319	lefcha	1.1	*/
320	lefcha	1.4	int set_action(char line, regmatch_t match)
321	lefcha	1.1	{
322			if (!cur_fltr)
323	lefcha	1.4	return ERROR_CONFIG_PARSE;
324	lefcha	1.7
325	lefcha	1.5	if (!strncasecmp(line + match[1].rm_so, "delete", 6))
326	lefcha	1.4	cur_fltr->action.type = FILTER_ACTION_DELETE;
327	lefcha	1.5	else if (!strncasecmp(line + match[1].rm_so, "copy", 4)) {
328	lefcha	1.4	cur_fltr->action.type = FILTER_ACTION_COPY;
329			strncat(cur_fltr->action.destmbox, line + match[2].rm_so,
330			min(match[2].rm_eo - match[2].rm_so, MBOX_NAME_LEN - 1));
331	lefcha	1.5	} else if (!strncasecmp(line + match[1].rm_so, "move", 4)) {
332	lefcha	1.4	cur_fltr->action.type = FILTER_ACTION_MOVE;
333			strncat(cur_fltr->action.destmbox, line + match[3].rm_so,
334			min(match[3].rm_eo - match[3].rm_so, MBOX_NAME_LEN - 1));
335	lefcha	1.5	} else if (!strncasecmp(line + match[1].rm_so, "list", 4))
336	lefcha	1.4	cur_fltr->action.type = FILTER_ACTION_LIST;
337	lefcha	1.7
338	lefcha	1.4	if (match[4].rm_so != -1)
339			strncat(cur_fltr->action.args, line + match[4].rm_so,
340	lefcha	1.5	min(match[4].rm_eo - match[4].rm_so, ARGS_LEN - 1));
341	lefcha	1.1
342	lefcha	1.4	return 0;
343	lefcha	1.5
344	lefcha	1.1	}
345
346
347			/*
348			* Set new mask's variables to safe values.
349			*/
350			void init_mask(mask_t * node)
351			{
352			node->next = NULL;
353			node->body[0] = 0;
354			node->type = 0;
355			}
356
357
358			/*
359			* Append mask node to linked list.
360			*/
361			void append_mask(mask_t * node)
362			{
363			mask_t *pos;
364			mask_t **app;
365
366			APPEND_LINKED_LIST(cur_fltr->masks, node, pos, app);
367			}
368
369
370			/*
371			* A new mask entry was declared, create it and set it's
372			* variables accordingly.
373			*/
374			int set_mask(char line, regmatch_t match)
375			{
376	lefcha	1.4	int s, i, f = 0;
377	lefcha	1.1	mask_t *node;
378	lefcha	1.4	char *bp;
379	lefcha	1.5
380	lefcha	1.4	if (!cur_fltr)
381			return ERROR_CONFIG_PARSE;
382	lefcha	1.1
383			node = (mask_t *) create_node(sizeof(mask_t));
384
385			init_mask(node);
386	lefcha	1.5
387	lefcha	1.4	bp = node->body;
388	lefcha	1.5
389	lefcha	1.4	/* If specified set mask's type. */
390			if (match[2].rm_so != -1 && cur_fltr->masks) {
391	lefcha	1.9	if (!strncasecmp(line + match[2].rm_so, "or", 2))
392	lefcha	1.1	node->type = MASK_TYPE_OR;
393			else
394			node->type = MASK_TYPE_AND;
395			}
396	lefcha	1.4	/* Add NOT if specified. */
397			if (match[3].rm_so != -1) {
398			s = min(match[3].rm_eo - match[3].rm_so,
399			MASK_BODY_LEN - (bp - node->body) - 1);
400			strncpy(bp, line + match[3].rm_so, s);
401			string_upper(bp, s);
402			(bp + s - 1) = ' '; / In case it's '\t'. */
403			*(bp + s) = 0;
404			bp += s;
405	lefcha	1.1	}
406	lefcha	1.4	/* Keyword of the search key. */
407			s = min(match[4].rm_eo - match[4].rm_so,
408			MASK_BODY_LEN - (bp - node->body) - 3);
409			strncpy(bp, line + match[4].rm_so, s);
410			string_upper(bp, s);
411			*(bp + s) = 0;
412			bp += s;
413	lefcha	1.5
414	lefcha	1.4	/* Body of the search key (string/number). */
415			for (i = 5; i <= 6; i++)
416			if (match[i].rm_so != -1) {
417			*(bp++) = ' ';
418	lefcha	1.5
419	lefcha	1.4	/* Add '"' if not supplied and search key not a number. */
420			if (match[6].rm_so == -1 &&
421			(strstr(node->body, "LARGER") \|\|
422	lefcha	1.5	strstr(node->body, "SMALLER")))
423	lefcha	1.4	f = 1;
424			else if (*(line + match[i].rm_so) != '"')
425			*(bp++) = '"';
426	lefcha	1.5
427	lefcha	1.4	*bp = 0;
428	lefcha	1.5
429	lefcha	1.4	s = min(match[i].rm_eo - match[i].rm_so,
430			MASK_BODY_LEN - (bp - node->body) - 2);
431			strncpy(bp, line + match[i].rm_so, s);
432			*(bp + s) = 0;
433			bp += s;
434	lefcha	1.5
435			if (*(line + match[i].rm_so) != '"' && !f)
436	lefcha	1.4	*(bp++) = '"';
437	lefcha	1.5	*bp = 0;
438	lefcha	1.4	}
439	lefcha	1.1	append_mask(node);
440
441	lefcha	1.4	cur_fltr->masknum++;
442			cur_fltr->masklen += (bp - node->body);
443	lefcha	1.5
444
445	lefcha	1.1	#ifdef DEBUG
446			printf("debug: MASK: '%s'\n", node->body);
447			#endif
448
449			return 0;
450			}
451
452
453			/*
454			* A new job was declared, link filters with mailbox-groups.
455			*/
456			int set_job(char line, regmatch_t match)
457			{
458	lefcha	1.4	int s;
459	lefcha	1.1	const char *delim = ",";
460	lefcha	1.4	char ftok, gtok, fltr, mbgrp, f, g;
461	lefcha	1.1	filter_t *cf;
462	lefcha	1.4	mboxgrp_t *cg;
463	lefcha	1.5
464	lefcha	1.4	if (!accounts \|\| !filters)
465			return ERROR_CONFIG_PARSE;
466	lefcha	1.1
467			s = match[1].rm_eo - match[1].rm_so;
468	lefcha	1.6	fltr = (char *) xmalloc(s + 1);
469	lefcha	1.5
470	lefcha	1.4	f = strncpy(fltr, line + match[1].rm_so, s);
471			f[s] = 0;
472	lefcha	1.1
473			s = match[2].rm_eo - match[2].rm_so;
474	lefcha	1.6	mbgrp = (char *) xmalloc(s + 1);
475	lefcha	1.5
476	lefcha	1.4	/* Go through filters. */
477			while ((ftok = strsep(&f, delim))) {
478	lefcha	1.1	cf = (filter_t *) find_filter(ftok);
479			if (!cf)
480	lefcha	1.4	return ERROR_CONFIG_PARSE;
481	lefcha	1.5
482	lefcha	1.4	g = strncpy(mbgrp, line + match[2].rm_so, s);
483			g[s] = 0;
484	lefcha	1.5
485	lefcha	1.4	/* Go through mailbox groups. */
486			while ((gtok = strsep(&g, delim))) {
487			cg = (mboxgrp_t *) find_mboxgrp(gtok);
488			if (!cg)
489			return ERROR_CONFIG_PARSE;
490			link_mbox_filter(cf, cg);
491	lefcha	1.1	}
492			}
493	lefcha	1.5
494	lefcha	1.1	free(fltr);
495			free(mbgrp);
496
497	lefcha	1.4	return 0;
498	lefcha	1.1	}
499
500
501			/*
502			* Link a filter with a mailbox.
503			*/
504	lefcha	1.4	void link_mbox_filter(filter_t * cf, mboxgrp_t * cg)
505	lefcha	1.1	{
506			int i, j;
507	lefcha	1.4	int f;
508	lefcha	1.5
509			for (i = 0; cg->mboxes[i]; i++) {
510
511	lefcha	1.4	for (f = j = 0; cg->mboxes[i]->filters[j]; j++)
512			if (j == MBOX_FILTERS_MAX - 1 \|\|
513	lefcha	1.5	!strncmp(cf->key, cg->mboxes[i]->filters[j]->key, KEY_LEN))
514	lefcha	1.4	f = 1;
515	lefcha	1.5
516	lefcha	1.4	if (f)
517			continue;
518	lefcha	1.5
519	lefcha	1.4	cg->mboxes[i]->filters[j] = cf;
520			cg->mboxes[i]->filters[j + 1] = NULL;
521	lefcha	1.1
522			}
523
524			#ifdef DEBUG
525	lefcha	1.4	printf("debug: JOB: '%s' '%s'\n", cf->key, cg->key);
526	lefcha	1.1	#endif
527			}
528
529
530			/*
531	lefcha	1.3	* Free allocated memory of data structures that are not needed anymore.
532			*/
533			void destroy_data(void)
534			{
535			destroy_mboxgrp(mboxgrps);
536			}
537
538
539			/*
540	lefcha	1.4	* Go through the mailbox-group tree, and free the memory of each node.
541	lefcha	1.1	*/
542			void destroy_mboxgrp(mboxgrp_t * node)
543			{
544	lefcha	1.7	if (node->left) {
545	lefcha	1.1	destroy_mboxgrp(node->left);
546	lefcha	1.7	node->left = NULL;
547			}
548			if (node->right) {
549	lefcha	1.1	destroy_mboxgrp(node->right);
550	lefcha	1.7	node->right = NULL;
551			}
552	lefcha	1.1	#ifdef DEBUG
553			printf("debug: deleting FOLDER: '%s'\n", node->key);
554			#endif
555	lefcha	1.5
556	lefcha	1.4	free(node);
557	lefcha	1.2	}
558
559
560			/*
561			* Convert a string of specified size to upper case.
562			*/
563	lefcha	1.4	void string_upper(char *str, size_t size)
564	lefcha	1.2	{
565			int i;
566
567	lefcha	1.8	for (i = 0; i < size; i++, str++)
568			if (islower(*str))
569			str = toupper(str);
570			}
571
572
573			/*
574			* Decode the character triplet, consisting of the character '%'
575			* followed by two hexadecimal digits to its corresponding ASCII
576			* character (described in Section 2.2 of RFC 1738).
577			*/
578			int string_decode(char *str)
579			{
580			char *c;
581			char hex[3];
582
583			c = str;
584
585			while (*c) {
586			if (*c == '%') {
587			if (!isxdigit((c + 1)) \|\| !isxdigit((c + 2)))
588			return ERROR_CONFIG_PARSE;
589
590			strncpy(hex, ++c, 2);
591			hex[2] = 0;
592
593			if (!isprint(*str = (char) strtoul(hex, NULL, 16)))
594			return ERROR_CONFIG_PARSE;
595
596			str++;
597			c += 2;
598			} else
599			(str++) = (c++);
600			}
601			*str = 0;
602
603			return 0;
604	lefcha	1.1	}