/[imapfilter]/imapfilter/file.c
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Diff of /imapfilter/file.c

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revision 1.10 by lefcha, Sun Aug 26 13:31:57 2001 UTC revision 1.11 by lefcha, Sun Aug 26 19:37:45 2001 UTC
# Line 14  Line 14 
14    
15    
16  extern char logfile[PATH_MAX];  extern char logfile[PATH_MAX];
17    extern unsigned int options;
18    
19  account_t *accounts = NULL;     /* All accounts. */  account_t *accounts = NULL;     /* All accounts. */
20    
21  filter_t *dfilters;             /* Filters of DENY type. */  filter_t *dfilters = NULL;      /* Filters of DENY type. */
22  filter_t *afilters;             /* Filters of ALLOW type. */  filter_t *afilters = NULL;      /* Filters of ALLOW type. */
23    
24  unsigned int dlimit = 0;  unsigned int dlimit = 0;
25  unsigned int alimit = 0;        /* DENY and ALLOW message size limits. */  unsigned int alimit = 0;        /* DENY and ALLOW message size limits. */
# Line 42  int read_config(char *cfg) Line 43  int read_config(char *cfg)
43          snprintf(cfg, PATH_MAX, "%s/%s", home, ".imapfilterrc");          snprintf(cfg, PATH_MAX, "%s/%s", home, ".imapfilterrc");
44      }      }
45  #ifdef DEBUG  #ifdef DEBUG
46      printf("debug: configuration file: %s\n", cfg);      printf("debug: configuration file: '%s'\n", cfg);
47  #endif  #endif
48    
49      check_permissions(cfg);      check_permissions(cfg);
# Line 50  int read_config(char *cfg) Line 51  int read_config(char *cfg)
51      fp = fopen(cfg, "r");      fp = fopen(cfg, "r");
52    
53      if (!fp) {      if (!fp) {
54          fprintf(stderr, "imapfilter: opening config file %s; %s\n",          error("imapfilter: opening config file %s; %s\n",
55                  cfg, strerror(errno));                cfg, strerror(errno));
56          return 1;          return 1;
57      }      }
58    
# Line 59  int read_config(char *cfg) Line 60  int read_config(char *cfg)
60    
61      fclose(fp);      fclose(fp);
62    
63    #ifdef DEBUG
64        printf("debug: options: %0#10x\n", options);
65    #endif
66    
67      return r;      return r;
68  }  }
69    
# Line 71  int check_permissions(char *cfg) Line 76  int check_permissions(char *cfg)
76      struct stat fs;      struct stat fs;
77    
78      if (stat(cfg, &fs)) {      if (stat(cfg, &fs)) {
79          fprintf(stderr, "imapfilter: getting file %s status; %s\n", cfg,          error("imapfilter: getting file %s status; %s\n", cfg,
80                  strerror(errno));                strerror(errno));
81          return 1;          return 1;
82      }      }
83    
84      if (!S_ISREG(fs.st_mode)) {      if (!S_ISREG(fs.st_mode)) {
85          fprintf(stderr, "imapfilter: file %s not a regular file\n", cfg);          error("imapfilter: file %s not a regular file\n", cfg);
86          return 1;          return 1;
87      }      }
88    
# Line 101  int parse_config(FILE * fp) Line 106  int parse_config(FILE * fp)
106      int i;      int i;
107      unsigned int row = 0;      unsigned int row = 0;
108      char line[LINE_MAX];      char line[LINE_MAX];
109      regex_t creg[5];      regex_t creg[7];
110      regmatch_t match[4];      regmatch_t match[4];
111      const char *reg[5] = {      const char *reg[7] = {
112          "^[[:blank:]]*(SERVER|PORT|USERNAME|PASSWORD|LOGFILE)[[:blank:]]*=[[:blank:]]*([[:graph:]]*)[[:blank:]]*",          "^[[:blank:]]*(SERVER|PORT|USERNAME|PASSWORD)[[:blank:]]*=[[:blank:]]*([[:graph:]]*)[[:blank:]]*\n$",
113          "^[[:blank:]]*(DENY|ALLOW)[[:blank:]]*=[[:blank:]]*(FROM|CC|BCC|SUBJECT|TO):? ([[:print:]]*)",          "^[[:blank:]]*(DENY|ALLOW)[[:blank:]]*=[[:blank:]]*(FROM|CC|BCC|SUBJECT|TO):? ([[:print:]]*)\n$",
114          "^[[:blank:]]*(DENY|ALLOW)[[:blank:]]*=[[:blank:]]*([[:graph:]]+):? ([[:print:]]*)",          "^[[:blank:]]*(DENY|ALLOW)[[:blank:]]*=[[:blank:]]*([[:graph:]]+):? ([[:print:]]*)\n$",
115          "^[[:blank:]]*(DENY_LIMIT|ALLOW_LIMIT)[[:blank:]]*=[[:blank:]]*([[:digit:]]*)[[:blank:]]*",          "^[[:blank:]]*(DENY_LIMIT|ALLOW_LIMIT)[[:blank:]]*=[[:blank:]]*([[:digit:]]*)[[:blank:]]*\n$",
116          "^[[:blank:]]*#{0,1}.*"          "^[[:blank:]]*(LOGFILE)[[:blank:]]*=[[:blank:]]*([[:graph:]]*)[[:blank:]]*\n$",
117            "^[[:blank:]]*(TEST_MODE|SHOW_HEADERS|UNSEEN_ONLY)[[:blank:]]*=[[:blank:]]*(yes|no)[[:blank:]]*\n$",
118            "^([[:blank:]]*\n|#.*\n)$"
119      };      };
120    
121      for (i = 0; i < 5; i++)      for (i = 0; i < 7; i++)
122          regcomp(&creg[i], reg[i], REG_EXTENDED);          regcomp(&creg[i], reg[i], REG_EXTENDED);
123    
124      while (fgets(line, LINE_MAX - 1, fp)) {      while (fgets(line, LINE_MAX - 1, fp)) {
# Line 131  int parse_config(FILE * fp) Line 138  int parse_config(FILE * fp)
138          } else if (!regexec(&creg[3], line, 3, match, 0)) {          } else if (!regexec(&creg[3], line, 3, match, 0)) {
139              set_limits(line, match);              set_limits(line, match);
140              continue;              continue;
141          } else if (!regexec(&creg[4], line, 1, match, 0))          } else if (!regexec(&creg[4], line, 3, match, 0) ||
142                       !regexec(&creg[5], line, 3, match, 0)) {
143                set_options(line, match);
144              continue;              continue;
145          else {          } else if (!regexec(&creg[6], line, 0, match, 0)) {
146              fprintf(stderr,              continue;
147                      "imapfilter: parse error in config file at row %d\n",          } else {
148                      row);              error("imapfilter: parse error in config file at row %d\n",
149                      row);
150              return 1;              return 1;
151          }          }
152      }      }
# Line 150  int parse_config(FILE * fp) Line 160  int parse_config(FILE * fp)
160    
161      /* Fail if no filters were defined. */      /* Fail if no filters were defined. */
162      if (!dfilters && !afilters) {      if (!dfilters && !afilters) {
163          fprintf(stderr, "imapfilter: no filters defined in config file\n");          error("imapfilter: no filters defined in config file\n");
164          return 1;          return 1;
165      }      }
166    
# Line 219  int set_account(char *line, regmatch_t * Line 229  int set_account(char *line, regmatch_t *
229              p[s] = 0;              p[s] = 0;
230              ca->port = strtoul(p, NULL, 0);              ca->port = strtoul(p, NULL, 0);
231  #ifdef DEBUG  #ifdef DEBUG
232              printf("debug: account setting PORT: '%d'\n", ca->port);              printf("debug: account setting PORT: %d\n", ca->port);
233  #endif  #endif
234          } else if (!strncmp(line + match[1].rm_so, "USERNAME", 8)) {          } else if (!strncmp(line + match[1].rm_so, "USERNAME", 8)) {
235              s = min((match[2].rm_eo - match[2].rm_so), USERID_MAX - 1);              s = min((match[2].rm_eo - match[2].rm_so), USERID_MAX - 1);
# Line 235  int set_account(char *line, regmatch_t * Line 245  int set_account(char *line, regmatch_t *
245  #ifdef DEBUG  #ifdef DEBUG
246              printf("debug: account setting PASSWORD: '%s'\n", ca->passwd);              printf("debug: account setting PASSWORD: '%s'\n", ca->passwd);
247  #endif  #endif
         } else if (!logfile[0]  
                    && !strncmp(line + match[1].rm_so, "LOGFILE", 7)) {  
             s = min((match[2].rm_eo - match[2].rm_so), PATH_MAX - 1);  
             strncpy(logfile, line + match[2].rm_so, s);  
             logfile[s] = 0;  
248          }          }
249      }      }
250    
# Line 259  int set_filters(char *line, regmatch_t * Line 264  int set_filters(char *line, regmatch_t *
264    
265      if (!(strncmp(line + match[1].rm_so, "DENY", 4))) {      if (!(strncmp(line + match[1].rm_so, "DENY", 4))) {
266  #ifdef DEBUG  #ifdef DEBUG
267          printf("debug: filter entry: DENY");          printf("debug: filter entry DENY:");
268  #endif  #endif
269          cf = &cdf;          cf = &cdf;
270          fl = &dfilters;          fl = &dfilters;
271      } else {      } else {
272  #ifdef DEBUG  #ifdef DEBUG
273          printf("debug: filter entry: ALLOW");          printf("debug: filter entry ALLOW:");
274  #endif  #endif
275          cf = &caf;          cf = &caf;
276          fl = &afilters;          fl = &afilters;
# Line 304  int set_filters(char *line, regmatch_t * Line 309  int set_filters(char *line, regmatch_t *
309      (*cf)->body[s] = 0;      (*cf)->body[s] = 0;
310    
311  #ifdef DEBUG  #ifdef DEBUG
312      printf(" '%s': '%s'\n", (*cf)->name, (*cf)->body);      printf(" '%s' '%s'\n", (*cf)->name, (*cf)->body);
313  #endif  #endif
314      return 0;      return 0;
315  }  }
# Line 324  void set_limits(char *line, regmatch_t * Line 329  void set_limits(char *line, regmatch_t *
329    
330      if (!strncmp(line + match[1].rm_so, "DENY_LIMIT", 10)) {      if (!strncmp(line + match[1].rm_so, "DENY_LIMIT", 10)) {
331          dlimit = strtoul(lim, NULL, 0);          dlimit = strtoul(lim, NULL, 0);
332    #ifdef DEBUG
333            printf("debug: size filter DENY_LIMIT: %d\n", dlimit);
334    #endif
335      } else {      } else {
336          alimit = strtoul(lim, NULL, 0);          alimit = strtoul(lim, NULL, 0);
337    #ifdef DEBUG
338            printf("debug: size filter ALLOW_LIMIT: %d\n", alimit);
339    #endif
340        }
341    }
342    
343    
344    /*
345     * Sets other options found in config file.
346     */
347    void set_options(char *line, regmatch_t * match)
348    {
349        int s;
350    
351        if (!logfile[0] && !strncmp(line + match[1].rm_so, "LOGFILE", 7)) {
352            s = min((match[2].rm_eo - match[2].rm_so), PATH_MAX - 1);
353            strncpy(logfile, line + match[2].rm_so, s);
354            logfile[s] = 0;
355        } else if (!strncmp(line + match[1].rm_so, "TEST_MODE", 9) &&
356                   !(options & OPT_TEST_MODE_STICKY)) {
357            if (!strncmp(line + match[2].rm_so, "yes", 3))
358                options |= OPT_TEST_MODE;
359            else if (options & OPT_TEST_MODE)
360                options ^= OPT_TEST_MODE;
361        } else if (!strncmp(line + match[1].rm_so, "SHOW_HEADERS", 12)) {
362            if (!strncmp(line + match[2].rm_so, "yes", 3))
363                options |= OPT_SHOW_HEADERS;
364            else if (options & OPT_UNSEEN_ONLY)
365                options ^= OPT_SHOW_HEADERS;
366        } else if (!strncmp(line + match[1].rm_so, "UNSEEN_ONLY", 11)) {
367            if (!strncmp(line + match[2].rm_so, "yes", 3))
368                options |= OPT_UNSEEN_ONLY;
369            else if (options & OPT_UNSEEN_ONLY)
370                options ^= OPT_UNSEEN_ONLY;
371      }      }
372  }  }
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