1 |
lefcha |
1.1 |
#include <stdio.h> |
2 |
|
|
#include <errno.h> |
3 |
lefcha |
1.5 |
#include <sys/types.h> |
4 |
lefcha |
1.1 |
#include <regex.h> |
5 |
|
|
#include <string.h> |
6 |
|
|
#include <stdlib.h> |
7 |
|
|
#include <limits.h> |
8 |
lefcha |
1.10 |
#include <sys/stat.h> |
9 |
lefcha |
1.1 |
|
10 |
|
|
#include "config.h" |
11 |
|
|
#include "imapfilter.h" |
12 |
lefcha |
1.13 |
#include "data.h" |
13 |
lefcha |
1.1 |
|
14 |
|
|
|
15 |
lefcha |
1.6 |
extern char logfile[PATH_MAX]; |
16 |
lefcha |
1.11 |
extern unsigned int options; |
17 |
lefcha |
1.8 |
|
18 |
lefcha |
1.1 |
|
19 |
|
|
/* |
20 |
lefcha |
1.13 |
* Find the path to configuration file, open it and call parse_config(). |
21 |
lefcha |
1.1 |
*/ |
22 |
|
|
int read_config(char *cfg) |
23 |
|
|
{ |
24 |
|
|
int r; |
25 |
|
|
FILE *fp; |
26 |
|
|
char *home = NULL; |
27 |
|
|
|
28 |
|
|
if (!cfg) { |
29 |
|
|
cfg = (char *) malloc(PATH_MAX * sizeof(char)); |
30 |
|
|
|
31 |
lefcha |
1.8 |
|
32 |
lefcha |
1.1 |
home = getenv("HOME"); |
33 |
|
|
|
34 |
|
|
snprintf(cfg, PATH_MAX, "%s/%s", home, ".imapfilterrc"); |
35 |
|
|
} |
36 |
|
|
#ifdef DEBUG |
37 |
lefcha |
1.11 |
printf("debug: configuration file: '%s'\n", cfg); |
38 |
lefcha |
1.1 |
#endif |
39 |
lefcha |
1.13 |
#ifdef CHECK_PERMISSIONS |
40 |
|
|
check_permissions(cfg); |
41 |
lefcha |
1.12 |
#endif |
42 |
lefcha |
1.1 |
fp = fopen(cfg, "r"); |
43 |
|
|
|
44 |
|
|
if (!fp) { |
45 |
lefcha |
1.11 |
error("imapfilter: opening config file %s; %s\n", |
46 |
|
|
cfg, strerror(errno)); |
47 |
lefcha |
1.8 |
return 1; |
48 |
lefcha |
1.1 |
} |
49 |
|
|
|
50 |
|
|
r = parse_config(fp); |
51 |
|
|
|
52 |
|
|
fclose(fp); |
53 |
|
|
|
54 |
lefcha |
1.11 |
#ifdef DEBUG |
55 |
|
|
printf("debug: options: %0#10x\n", options); |
56 |
|
|
#endif |
57 |
|
|
|
58 |
lefcha |
1.1 |
return r; |
59 |
|
|
} |
60 |
|
|
|
61 |
lefcha |
1.6 |
|
62 |
lefcha |
1.13 |
#ifdef CHECK_PERMISSIONS |
63 |
lefcha |
1.1 |
/* |
64 |
lefcha |
1.13 |
* Check the permissions of the configuration file. |
65 |
lefcha |
1.10 |
*/ |
66 |
lefcha |
1.13 |
int check_permissions(char *cfg) |
67 |
lefcha |
1.10 |
{ |
68 |
|
|
struct stat fs; |
69 |
|
|
|
70 |
|
|
if (stat(cfg, &fs)) { |
71 |
lefcha |
1.11 |
error("imapfilter: getting file %s status; %s\n", cfg, |
72 |
|
|
strerror(errno)); |
73 |
lefcha |
1.10 |
return 1; |
74 |
|
|
} |
75 |
|
|
|
76 |
|
|
if (!S_ISREG(fs.st_mode)) { |
77 |
lefcha |
1.11 |
error("imapfilter: file %s not a regular file\n", cfg); |
78 |
lefcha |
1.10 |
return 1; |
79 |
|
|
} |
80 |
|
|
|
81 |
|
|
if ((fs.st_mode & 00777) != (S_IRUSR | S_IWUSR)) { |
82 |
|
|
fprintf(stderr, |
83 |
lefcha |
1.13 |
"imapfilter: warning: improper config file %s permissions\n" |
84 |
lefcha |
1.10 |
"imapfilter: warning: file's mode should be 600 not %o\n", |
85 |
|
|
cfg, fs.st_mode & 00777); |
86 |
|
|
return 1; |
87 |
|
|
} |
88 |
|
|
|
89 |
|
|
return 0; |
90 |
|
|
} |
91 |
lefcha |
1.12 |
#endif |
92 |
lefcha |
1.10 |
|
93 |
|
|
/* |
94 |
lefcha |
1.13 |
* Parse configuration file. |
95 |
lefcha |
1.1 |
*/ |
96 |
|
|
int parse_config(FILE * fp) |
97 |
|
|
{ |
98 |
|
|
int i; |
99 |
|
|
unsigned int row = 0; |
100 |
|
|
char line[LINE_MAX]; |
101 |
lefcha |
1.13 |
regex_t creg[10]; |
102 |
|
|
regmatch_t match[7]; |
103 |
|
|
const char *reg[10] = { |
104 |
|
|
"^[[:blank:]]*ACCOUNT[[:blank:]]+([[:graph:]]*):([[:graph:]]*)@([[:alnum:].-]+):?([[:digit:]]{0,5})[[:blank:]]*\n$", |
105 |
|
|
"^[[:blank:]]*FOLDER[[:blank:]]+([[:alnum:]_-]+)[[:blank:]]+([[:graph:]]+)[[:blank:]]*\n$", |
106 |
|
|
"^[[:blank:]]*FILTER[[:blank:]]+([[:alnum:]_-]+)[[:blank:]]*([[:blank:]]OR|[[:blank:]]AND)?[[:blank:]]*\n$", |
107 |
|
|
"^[[:blank:]]*ACTION[[:blank:]]+(DELETE|COPY|MOVE|LIST)[[:blank:]]*([[:graph:]]*)[[:blank:]]*\n$", |
108 |
|
|
"^[[:blank:]]*(MASK[[:blank:]])?[[:blank:]]*(OR[[:blank:]]|AND[[:blank:]])?[[:blank:]]*(NOT[[:blank:]])?[[:blank:]]*(ALL|ANSWERED|DELETED|DRAFT|FLAGGED|NEW|OLD|RECENT|SEEN|UNANSWERED|UNDELETED|UNDRAFT|UNFLAGGED|UNSEEN)[[:blank:]]*\n$", |
109 |
|
|
"^[[:blank:]]*(MASK[[:blank:]])?[[:blank:]]*(OR[[:blank:]]|AND[[:blank:]])?[[:blank:]]*(NOT[[:blank:]])?[[:blank:]]*(BCC|BODY|CC|FROM|SUBJECT|TEXT|TO)[[:blank:]]+([[:print:]]+)\n$", |
110 |
|
|
"^[[:blank:]]*(MASK[[:blank:]])?[[:blank:]]*(OR[[:blank:]]|AND[[:blank:]])?[[:blank:]]*(NOT[[:blank:]])?[[:blank:]]*(HEADER)[[:blank:]]+([[:graph:]]+)[[:blank:]]+([[:print:]]+)\n$", |
111 |
|
|
"^[[:blank:]]*(MASK[[:blank:]])?[[:blank:]]*(OR[[:blank:]]|AND[[:blank:]])?[[:blank:]]*(NOT[[:blank:]])?[[:blank:]]*(LARGER|SMALLER)[[:blank:]]+([[:digit:]]+)[[:blank:]]*\n$", |
112 |
|
|
"^[[:blank:]]*JOB[[:blank:]]+([[:alnum:],_-]+)[[:blank:]]+([[:alnum:],_-]+)[[:blank:]]*\n$", |
113 |
lefcha |
1.11 |
"^([[:blank:]]*\n|#.*\n)$" |
114 |
lefcha |
1.1 |
}; |
115 |
|
|
|
116 |
lefcha |
1.13 |
for (i = 0; i < 10; i++) |
117 |
lefcha |
1.14 |
regcomp(&creg[i], reg[i], REG_EXTENDED | REG_ICASE); |
118 |
lefcha |
1.1 |
|
119 |
|
|
while (fgets(line, LINE_MAX - 1, fp)) { |
120 |
|
|
row++; |
121 |
lefcha |
1.13 |
if (!regexec(&creg[0], line, 6, match, 0)) { |
122 |
|
|
set_account(line, match); |
123 |
lefcha |
1.1 |
continue; |
124 |
lefcha |
1.13 |
} else if (!regexec(&creg[1], line, 3, match, 0)) { |
125 |
|
|
set_mboxgrp(line, match); |
126 |
lefcha |
1.1 |
continue; |
127 |
lefcha |
1.13 |
} else if (!regexec(&creg[2], line, 3, match, 0)) { |
128 |
|
|
set_filter(line, match); |
129 |
lefcha |
1.1 |
continue; |
130 |
lefcha |
1.8 |
} else if (!regexec(&creg[3], line, 3, match, 0)) { |
131 |
lefcha |
1.13 |
set_action(line, match); |
132 |
lefcha |
1.4 |
continue; |
133 |
lefcha |
1.13 |
} else if (!regexec(&creg[4], line, 7, match, 0) || |
134 |
|
|
!regexec(&creg[5], line, 7, match, 0) || |
135 |
|
|
!regexec(&creg[6], line, 7, match, 0) || |
136 |
|
|
!regexec(&creg[7], line, 7, match, 0)) { |
137 |
|
|
set_mask(line, match); |
138 |
lefcha |
1.1 |
continue; |
139 |
lefcha |
1.13 |
} else if (!regexec(&creg[8], line, 3, match, 0)) { |
140 |
|
|
set_job(line, match); |
141 |
|
|
continue; |
142 |
|
|
} else if (!regexec(&creg[9], line, 0, match, 0)) { |
143 |
lefcha |
1.11 |
continue; |
144 |
|
|
} else { |
145 |
|
|
error("imapfilter: parse error in config file at row %d\n", |
146 |
|
|
row); |
147 |
lefcha |
1.8 |
return 1; |
148 |
lefcha |
1.1 |
} |
149 |
|
|
} |
150 |
lefcha |
1.3 |
|
151 |
lefcha |
1.13 |
for (i = 0; i < 10; i++) |
152 |
lefcha |
1.12 |
regfree(&creg[i]); |
153 |
lefcha |
1.6 |
|
154 |
lefcha |
1.8 |
return 0; |
155 |
lefcha |
1.1 |
} |
156 |
|
|
|
157 |
|
|
|
158 |
|
|
/* |
159 |
lefcha |
1.13 |
* Set other options found in config file. |
160 |
lefcha |
1.11 |
*/ |
161 |
|
|
void set_options(char *line, regmatch_t * match) |
162 |
|
|
{ |
163 |
|
|
int s; |
164 |
|
|
|
165 |
lefcha |
1.13 |
if (!*logfile && !strncmp(line + match[1].rm_so, "LOGFILE", 7)) { |
166 |
lefcha |
1.11 |
s = min((match[2].rm_eo - match[2].rm_so), PATH_MAX - 1); |
167 |
|
|
strncpy(logfile, line + match[2].rm_so, s); |
168 |
|
|
logfile[s] = 0; |
169 |
lefcha |
1.4 |
} |
170 |
lefcha |
1.1 |
} |