directories containing mbox files, and create a db file containing
for each mail a list of fields computed from the header, or (2)
read such a db file and get all the mails matching regexp-defined
- conditions on the fields.
+ conditions on the fields, to create a resulting mbox file.
It is low-tech, simple, light and fast.
#include <limits.h>
#include <dirent.h>
#include <regex.h>
+#include <time.h>
-#define VERSION "0.1"
+#define MYMAIL_DB_MAGIC_TOKEN "mymail_index_file"
+#define VERSION "0.9.5"
+
+#define MAX_NB_SEARCH_CONDITIONS 32
#define BUFFER_SIZE 65536
+#define TOKEN_BUFFER_SIZE 1024
+
+#define LEADING_FROM_LINE_REGEXP_STRING "^From [^ ]* \\(Mon\\|Tue\\|Wed\\|Thu\\|Fri\\|Sat\\|Sun\\) \\(Jan\\|Feb\\|Mar\\|Apr\\|May\\|Jun\\|Jul\\|Aug\\|Sep\\|Oct\\|Nov\\|Dec\\) [ 123][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9][0-9][0-9][0-9]\n$"
+
+/* Global variables! */
+
+int global_quiet;
+int global_use_leading_time;
+
+regex_t global_leading_from_line_regexp;
+
+/********************************************************************/
+
+enum {
+ ID_MAIL = 0,
+ ID_LEADING_LINE,
+ ID_FROM,
+ ID_TO,
+ ID_SUBJECT,
+ ID_DATE,
+ ID_PARTICIPANT,
+ ID_BODY,
+ ID_INTERVAL,
+ MAX_ID
+};
+
+static char *field_keys[] = {
+ "mail",
+ "lead",
+ "from",
+ "to",
+ "subject",
+ "date",
+ "part",
+ "body",
+ "interval"
+};
+
+/********************************************************************/
+
+struct search_condition {
+ int field_id;
+ int negation;
+ regex_t regexp;
+ time_t interval_start, interval_stop;
+};
+
+/********************************************************************/
struct parsable_field {
- char *name;
+ int id;
+ int cflags;
char *regexp_string;
regex_t regexp;
};
-char *db_filename;
-char *search_pattern;
+static struct parsable_field fields_to_parse[] = {
+ {
+ ID_LEADING_LINE,
+ 0,
+ "^From ",
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ },
+
+ {
+ ID_FROM,
+ REG_ICASE,
+ "^\\(from\\|reply-to\\|sender\\|return-path\\): ",
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ },
+
+ {
+ ID_TO,
+ REG_ICASE,
+ "^\\(to\\|cc\\|bcc\\): ",
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ },
-int paranoid;
-int action_index;
+ {
+ ID_SUBJECT,
+ REG_ICASE,
+ "^subject: ",
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ },
-char *segment_next_field(char *current) {
- while(*current && *current != ' ') current++;
- *current = '\0'; current++;
- while(*current && *current == ' ') current++;
- return current;
-}
+ {
+ ID_DATE,
+ REG_ICASE,
+ "^date: ",
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+ },
-void remove_eof(char *c) {
- while(*c && *c != '\n' && *c != '\r') c++;
- *c = '\0';
-}
+};
/********************************************************************/
-/* malloc with error checking. */
+int xor(int a, int b) {
+ return (a && !b) || (!a && b);
+}
+
+const char *parse_token(char *token_buffer, size_t token_buffer_size,
+ char separator, const char *string) {
+ char *u = token_buffer;
+ while(*string == separator) { string++; }
+ while(u < token_buffer + token_buffer_size - 1 && *string &&
+ *string != separator) {
+ *(u++) = *(string++);
+ }
+ while(*string == separator) { string++; }
+ *u = '\0';
+ return string;
+}
+
+char *default_value(char *current_value,
+ const char *env_variable,
+ const char *hard_default_value) {
+ if(current_value) {
+ return current_value;
+ } else {
+ char *env_value = getenv(env_variable);
+ if(env_value) {
+ return strdup(env_value);
+ } else if(hard_default_value) {
+ return strdup(hard_default_value);
+ } else {
+ return 0;
+ }
+ }
+}
-void *safe_malloc(size_t n) {
- void *p = malloc(n);
- if(!p && n != 0) {
+FILE *safe_fopen(const char *path, const char *mode, const char *comment) {
+ FILE *result = fopen(path, mode);
+ if(result) {
+ return result;
+ } else {
fprintf(stderr,
- "mymail: can not allocate memory: %s\n", strerror(errno));
+ "mymail: Cannot open file '%s' (%s) with mode \"%s\".\n",
+ path, comment, mode);
exit(EXIT_FAILURE);
}
- return p;
}
/*********************************************************************/
print_version(out);
fprintf(out, "Written by Francois Fleuret <francois@fleuret.org>.\n");
fprintf(out, "\n");
- fprintf(out, "Usage: mymail [options] [<filename1> [<filename2> ...]]\n");
+ fprintf(out, "Usage: mymail [options] [<mbox dir1> [<mbox dir2> ...]|<db file1> [<db file2> ...]]\n");
fprintf(out, "\n");
fprintf(out, " -h, --help\n");
fprintf(out, " show this help\n");
fprintf(out, " -v, --version\n");
fprintf(out, " print the version number\n");
+ fprintf(out, " -q, --quiet\n");
+ fprintf(out, " do not print information during search\n");
+ fprintf(out, " -t, --use-leading-time\n");
+ fprintf(out, " use the time stamp from the leading line of each mail and not the Date:\n");
+ fprintf(out, " field\n");
+ fprintf(out, " -p <db filename pattern>, --db-pattern <db filename pattern>\n");
+ fprintf(out, " set the db filename pattern for recursive search\n");
+ fprintf(out, " -r <db root path>, --db-root <db root path>\n");
+ fprintf(out, " set the db root path for recursive search\n");
+ fprintf(out, " -l <db filename list>, --db-list <db filename list>\n");
+ fprintf(out, " set the semicolon-separated list of db files for search\n");
+ fprintf(out, " -m <mbox filename pattern>, --mbox-pattern <mbox filename pattern>\n");
+ fprintf(out, " set the mbox filename pattern for recursive search\n");
+ fprintf(out, " -s <search pattern>, --search <search pattern>\n");
+ fprintf(out, " search for matching mails in the db file\n");
+ fprintf(out, " -d <db filename>, --db-file-generate <db filename>\n");
+ fprintf(out, " set the db filename for indexing\n");
fprintf(out, " -i, --index\n");
fprintf(out, " index mails\n");
- fprintf(out, " -d <db filename>, --db-file <db filename>\n");
- fprintf(out, " set the data-base file\n");
- fprintf(out, " -s <search pattern>, --search <search pattern>\n");
- fprintf(out, " search for matching mails in the data-base file\n");
+ fprintf(out, " -o <output filename>, --output <output filename>\n");
+ fprintf(out, " set the result file, use stdout if unset\n");
+ fprintf(out, " -a <search field>, --default-search <search field>\n");
+ fprintf(out, " set the default search field\n");
}
/*********************************************************************/
-void search_in_db(const char *search_name, const char *search_regexp_string,
- FILE *db_file) {
- char raw_line[BUFFER_SIZE];
- char current_mail_filename[BUFFER_SIZE];
+int ignore_entry(const char *name) {
+ return
+ strcmp(name, ".") == 0 ||
+ strcmp(name, "..") == 0 ||
+ (name[0] == '.' && name[1] != '/');
+}
+
+int is_a_leading_from_line(char *mbox_line) {
+ return
+ strncmp(mbox_line, "From ", 5) == 0 &&
+ regexec(&global_leading_from_line_regexp, mbox_line, 0, 0, 0) == 0;
+}
+
+int mbox_line_match_search(struct search_condition *condition,
+ int mbox_id, const char *mbox_value) {
+
+ if(condition->field_id == ID_INTERVAL) {
+ const char *c;
+ time_t t;
+ struct tm tm;
+ if(global_use_leading_time) {
+ if(mbox_id == ID_LEADING_LINE) {
+ c = mbox_value;
+ while(*c && *c != ' ') c++; while(*c && *c == ' ') c++;
+ strptime(c, "%a %b %e %k:%M:%S %Y", &tm);
+ t = mktime(&tm);
+ return (t >= condition->interval_start &&
+ (condition->interval_stop == 0 ||
+ t <= condition->interval_stop));
+ } else {
+ return 0;
+ }
+ } else {
+ if(mbox_id == ID_DATE) {
+ if(!strptime(mbox_value, "%a, %d %b %Y %k:%M:%S", &tm)) {
+ strptime(mbox_value, "%d %b %Y %k:%M:%S", &tm);
+ }
+ t = mktime(&tm);
+ return (t >= condition->interval_start &&
+ (condition->interval_stop == 0 ||
+ t <= condition->interval_stop));
+ } else {
+ return 0;
+ }
+ }
+ } else {
+ return
+ (
+
+ (condition->field_id == mbox_id)
+
+ ||
+
+ (condition->field_id == ID_PARTICIPANT && (mbox_id == ID_LEADING_LINE ||
+ mbox_id == ID_FROM ||
+ mbox_id == ID_TO))
+ ||
+
+ (condition->field_id == ID_FROM && mbox_id == ID_LEADING_LINE)
+
+ )
+
+ &&
+
+ regexec(&condition->regexp, mbox_value, 0, 0, 0) == 0;
+ }
+}
+
+void update_body_hits(char *mail_filename, int position_in_mail,
+ int nb_search_conditions, struct search_condition *search_conditions,
+ int nb_body_conditions,
+ int *hits) {
+ FILE *mail_file;
+ int header, n;
+ char raw_mbox_line[BUFFER_SIZE];
+ int nb_body_hits;
+
+ nb_body_hits = 0;
+
+ header = 1;
+ mail_file = safe_fopen(mail_filename, "r", "mbox for body scan");
+
+ fseek(mail_file, position_in_mail, SEEK_SET);
+
+ if(fgets(raw_mbox_line, BUFFER_SIZE, mail_file)) {
+ while(nb_body_hits < nb_body_conditions) {
+ /* last_mbox_line_was_empty = (raw_mbox_line[0] == '\n'); */
+ /* if(last_mbox_line_was_empty) { header = 0; } */
+
+ if(raw_mbox_line[0] == '\n') { header = 0; }
+
+ if(!header) {
+ for(n = 0; n < nb_search_conditions; n++) {
+ if(search_conditions[n].field_id == ID_BODY && !hits[n]) {
+ hits[n] =
+ (regexec(&search_conditions[n].regexp, raw_mbox_line, 0, 0, 0) == 0);
+ if(hits[n]) {
+ nb_body_hits++;
+ }
+ }
+ }
+ }
+
+ if(!fgets(raw_mbox_line, BUFFER_SIZE, mail_file) ||
+ (is_a_leading_from_line(raw_mbox_line)))
+ break;
+ }
+ }
+
+ fclose(mail_file);
+}
+
+void extract_mail(const char *mail_filename, unsigned long int position_in_mail,
+ FILE *output_file) {
+ char raw_mbox_line[BUFFER_SIZE];
+ FILE *mail_file;
+
+ mail_file = safe_fopen(mail_filename, "r", "mbox for mail extraction");
+ fseek(mail_file, position_in_mail, SEEK_SET);
+
+ if(fgets(raw_mbox_line, BUFFER_SIZE, mail_file)) {
+ fprintf(output_file, "%s", raw_mbox_line);
+ while(1) {
+ if(!fgets(raw_mbox_line, BUFFER_SIZE, mail_file) ||
+ (is_a_leading_from_line(raw_mbox_line))
+ )
+ break;
+ fprintf(output_file, "%s", raw_mbox_line);
+ }
+ }
+
+ fclose(mail_file);
+}
+
+int check_full_mail_match(char *current_mail_filename,
+ int nb_search_conditions,
+ struct search_condition *search_conditions,
+ int nb_body_conditions,
+ int *hits,
+ int current_position_in_mail) {
+ int n, nb_fulfilled_body_conditions;
+
+ /* We first check all conditions but the body ones */
+
+ for(n = 0; n < nb_search_conditions &&
+ ((search_conditions[n].field_id == ID_BODY) ||
+ xor(hits[n], search_conditions[n].negation)); n++);
+
+ if(n == nb_search_conditions) {
+
+ /* Now check the body ones */
+
+ nb_fulfilled_body_conditions = 0;
+
+ if(nb_body_conditions > 0) {
+ update_body_hits(current_mail_filename, current_position_in_mail,
+ nb_search_conditions, search_conditions,
+ nb_body_conditions,
+ hits);
+
+ for(n = 0; n < nb_search_conditions; n++) {
+ if(search_conditions[n].field_id == ID_BODY &&
+ xor(hits[n], search_conditions[n].negation)) {
+ nb_fulfilled_body_conditions++;
+ }
+ }
+ }
+ return nb_body_conditions == nb_fulfilled_body_conditions;
+ } else {
+ return 0;
+ }
+}
+
+int search_in_db(const char *db_filename,
+ int nb_search_conditions,
+ struct search_condition *search_conditions,
+ FILE *output_file) {
+
+ int hits[MAX_NB_SEARCH_CONDITIONS];
+ char raw_db_line[BUFFER_SIZE];
+ char current_mail_filename[PATH_MAX + 1];
unsigned long int current_position_in_mail;
- char *name, *value;
- regex_t regexp;
- int already_written;
+ char mbox_key[TOKEN_BUFFER_SIZE];
+ const char *mbox_value;
+ int mbox_id;
+ int already_written, m, n;
+ int nb_body_conditions;
+ FILE *db_file;
+ int nb_extracted_mails;
+
+ nb_extracted_mails = 0;
+
+ if(!global_quiet) {
+ printf("Searching in '%s' ... ", db_filename);
+ fflush(stdout);
+ }
+
+ db_file = safe_fopen(db_filename, "r", "index file for search");
- if(regcomp(®exp,
- search_regexp_string,
- REG_ICASE)) {
+ /* First, check the db file leading line integrity */
+
+ if(fgets(raw_db_line, BUFFER_SIZE, db_file)) {
+ if(strncmp(raw_db_line, MYMAIL_DB_MAGIC_TOKEN, strlen(MYMAIL_DB_MAGIC_TOKEN))) {
+ fprintf(stderr,
+ "mymail: Header line in '%s' does not match the mymail db format.\n",
+ db_filename);
+ exit(EXIT_FAILURE);
+ }
+ } else {
fprintf(stderr,
- "mymail: Syntax error in regexp \"%s\" for field \"%s\".\n",
- search_regexp_string,
- search_name);
+ "mymail: Cannot read the header line in '%s'.\n",
+ db_filename);
exit(EXIT_FAILURE);
}
+ /* Then parse the said db file */
+
current_position_in_mail = 0;
already_written = 0;
- while(fgets(raw_line, BUFFER_SIZE, db_file)) {
- name = raw_line;
- value = segment_next_field(raw_line);
+ for(n = 0; n < nb_search_conditions; n++) { hits[n] = 0; }
+
+ nb_body_conditions = 0;
+ for(n = 0; n < nb_search_conditions; n++) {
+ if(search_conditions[n].field_id == ID_BODY) {
+ nb_body_conditions++;
+ }
+ }
+
+ strcpy(current_mail_filename, "");
+
+ while(fgets(raw_db_line, BUFFER_SIZE, db_file)) {
+ mbox_value = parse_token(mbox_key, TOKEN_BUFFER_SIZE, ' ', raw_db_line);
- if(strcmp("mail", name) == 0) {
- char *position_in_file_string = value;
- char *mail_filename = segment_next_field(value);
+ if(strcmp("mail", mbox_key) == 0) {
+ char position_in_file_string[TOKEN_BUFFER_SIZE];
+ if(current_mail_filename[0] &&
+ check_full_mail_match(current_mail_filename,
+ nb_search_conditions, search_conditions,
+ nb_body_conditions, hits, current_position_in_mail)) {
+ nb_extracted_mails++;
+ extract_mail(current_mail_filename, current_position_in_mail, output_file);
+ }
+ for(n = 0; n < nb_search_conditions; n++) { hits[n] = 0; }
+ mbox_value = parse_token(position_in_file_string, TOKEN_BUFFER_SIZE, ' ', mbox_value);
+ mbox_value = parse_token(current_mail_filename, TOKEN_BUFFER_SIZE, '\n', mbox_value);
current_position_in_mail = atol(position_in_file_string);
- strcpy(current_mail_filename, mail_filename);
- remove_eof(current_mail_filename);
already_written = 0;
}
- else if(!already_written) {
- if(strcmp(search_name, name) == 0 && regexec(®exp, value, 0, 0, 0) == 0) {
- FILE *mail_file;
- mail_file = fopen(current_mail_filename, "r");
- if(!mail_file) {
- fprintf(stderr, "mymail: Can not open '%s'.\n", current_mail_filename);
- exit(EXIT_FAILURE);
+ else {
+ mbox_id = -1;
+ for(m = 0; (m < MAX_ID) && mbox_id == -1; m++) {
+ if(strncmp(field_keys[m], mbox_key, strlen(mbox_key)) == 0) {
+ mbox_id = m;
}
- fseek(mail_file, current_position_in_mail, SEEK_SET);
- if(fgets(raw_line, BUFFER_SIZE, mail_file)) {
- printf("%s", raw_line);
- while(fgets(raw_line, BUFFER_SIZE, mail_file) &&
- strncmp(raw_line, "From ", 5)) {
- printf("%s", raw_line);
- }
- }
- fclose(mail_file);
- already_written = 1;
+ }
+ for(n = 0; n < nb_search_conditions; n++) {
+ hits[n] |= mbox_line_match_search(&search_conditions[n],
+ mbox_id, mbox_value);
}
}
}
- regfree(®exp);
+ if(current_mail_filename[0] &&
+ check_full_mail_match(current_mail_filename,
+ nb_search_conditions, search_conditions,
+ nb_body_conditions, hits, current_position_in_mail)) {
+ nb_extracted_mails++;
+ extract_mail(current_mail_filename, current_position_in_mail, output_file);
+ }
+
+ fclose(db_file);
+
+ if(!global_quiet) {
+ printf("done.\n");
+ fflush(stdout);
+ }
+
+ return nb_extracted_mails;
+}
+
+int recursive_search_in_db(const char *entry_name, regex_t *db_filename_regexp,
+ int nb_search_conditions,
+ struct search_condition *search_conditions,
+ FILE *output_file) {
+ DIR *dir;
+ struct dirent *dir_e;
+ struct stat sb;
+ char subname[PATH_MAX + 1];
+ int nb_extracted_mails = 0;
+
+ if(lstat(entry_name, &sb) != 0) {
+ fprintf(stderr,
+ "mymail: Cannot stat \"%s\": %s\n",
+ entry_name,
+ strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+
+ /* printf("recursive_search_in_db %s\n", entry_name); */
+
+ dir = opendir(entry_name);
+
+ if(dir) {
+ while((dir_e = readdir(dir))) {
+ if(!ignore_entry(dir_e->d_name)) {
+ snprintf(subname, PATH_MAX, "%s/%s", entry_name, dir_e->d_name);
+ nb_extracted_mails += recursive_search_in_db(subname, db_filename_regexp,
+ nb_search_conditions, search_conditions,
+ output_file);
+ }
+ }
+ closedir(dir);
+ }
+
+ else {
+ const char *s = entry_name, *filename = entry_name;
+ while(*s) { if(*s == '/') { filename = s+1; } s++; }
+
+ if(regexec(db_filename_regexp, filename, 0, 0, 0) == 0) {
+ nb_extracted_mails +=
+ search_in_db(entry_name, nb_search_conditions, search_conditions, output_file);
+ }
+ }
+
+ return nb_extracted_mails;
}
/*********************************************************************/
-void index_one_mbox_line(int nb_fields_to_parse, struct parsable_field *fields_to_parse,
- char *raw_line, FILE *db_file) {
+void index_one_mbox_line(unsigned int nb_fields_to_parse,
+ struct parsable_field *fields_to_parse,
+ char *raw_mbox_line, FILE *db_file) {
regmatch_t matches;
- int f;
+ unsigned int f;
for(f = 0; f < nb_fields_to_parse; f++) {
- if(regexec(&fields_to_parse[f].regexp, raw_line, 1, &matches, 0) == 0) {
+ if(regexec(&fields_to_parse[f].regexp, raw_mbox_line, 1, &matches, 0) == 0) {
fprintf(db_file, "%s %s\n",
- fields_to_parse[f].name,
- raw_line + matches.rm_eo);
+ field_keys[fields_to_parse[f].id],
+ raw_mbox_line + matches.rm_eo);
}
}
}
-void index_mbox(const char *input_filename,
+void index_mbox(const char *mbox_filename,
int nb_fields_to_parse, struct parsable_field *fields_to_parse,
FILE *db_file) {
- char raw_line[BUFFER_SIZE], full_line[BUFFER_SIZE];
+ char raw_mbox_line[BUFFER_SIZE], full_line[BUFFER_SIZE];
char *end_of_full_line;
FILE *file;
int in_header, new_header;
unsigned long int position_in_file;
- file = fopen(input_filename, "r");
-
- if(!file) {
- fprintf(stderr, "mymail: Can not open '%s'.\n", input_filename);
- if(paranoid) { exit(EXIT_FAILURE); }
- return;
- }
+ file = safe_fopen(mbox_filename, "r", "mbox for indexing");
in_header = 0;
new_header = 0;
end_of_full_line = 0;
full_line[0] = '\0';
- while(fgets(raw_line, BUFFER_SIZE, file)) {
- if(strncmp(raw_line, "From ", 5) == 0) {
+ while(fgets(raw_mbox_line, BUFFER_SIZE, file)) {
+ if(is_a_leading_from_line(raw_mbox_line)) {
+ /* This starts a new mail */
if(in_header) {
fprintf(stderr,
"Got a ^\"From \" in the header in %s:%lu.\n",
- input_filename, position_in_file);
- fprintf(stderr, "%s", raw_line);
- if(paranoid) { exit(EXIT_FAILURE); }
+ mbox_filename, position_in_file);
+ fprintf(stderr, "%s", raw_mbox_line);
}
+
+ /* printf("LEADING_LINE %s", raw_mbox_line); */
+
in_header = 1;
new_header = 1;
- } else if(strncmp(raw_line, "\n", 1) == 0) {
- if(in_header) { in_header = 0; }
+ } else if(raw_mbox_line[0] == '\n') {
+ if(in_header) {
+ in_header = 0;
+ /* We leave the header, index the current line */
+ if(full_line[0]) {
+ /* printf("INDEX %s\n", full_line); */
+ index_one_mbox_line(nb_fields_to_parse, fields_to_parse, full_line, db_file);
+ }
+ end_of_full_line = full_line;
+ *end_of_full_line = '\0';
+ }
}
- /* printf("PARSE %d %s", in_header, raw_line); */
-
if(in_header) {
if(new_header) {
- fprintf(db_file, "mail %lu %s\n", position_in_file, input_filename);
+ fprintf(db_file, "mail %lu %s\n", position_in_file, mbox_filename);
new_header = 0;
}
- if(raw_line[0] == ' ' || raw_line[0] == '\t') {
- char *start = raw_line;
+ if(raw_mbox_line[0] == ' ' || raw_mbox_line[0] == '\t') {
+ /* Continuation of a line */
+ char *start = raw_mbox_line;
while(*start == ' ' || *start == '\t') start++;
*(end_of_full_line++) = ' ';
strcpy(end_of_full_line, start);
}
else {
- /* if(!((raw_line[0] >= 'a' && raw_line[0] <= 'z') || */
- /* (raw_line[0] >= 'A' && raw_line[0] <= 'Z'))) { */
- /* fprintf(stderr, */
- /* "Header line syntax error %s:%lu.\n", */
- /* input_filename, position_in_file); */
- /* fprintf(stderr, "%s", raw_line); */
- /* } */
+ /* Start a new header line, not a continuation */
if(full_line[0]) {
+ /* printf("INDEX %s\n", full_line); */
index_one_mbox_line(nb_fields_to_parse, fields_to_parse, full_line, db_file);
}
end_of_full_line = full_line;
- strcpy(end_of_full_line, raw_line);
+ strcpy(end_of_full_line, raw_mbox_line);
while(*end_of_full_line && *end_of_full_line != '\n') {
end_of_full_line++;
}
}
- position_in_file += strlen(raw_line);
+ position_in_file += strlen(raw_mbox_line);
}
fclose(file);
}
-int ignore_entry(const char *name) {
- return
- /* strcmp(name, ".") == 0 || */
- /* strcmp(name, "..") == 0 || */
- (name[0] == '.' && name[1] != '/');
-}
-
-void process_entry(const char *dir_name,
- int nb_fields_to_parse, struct parsable_field *fields_to_parse,
- FILE *db_file) {
+void recursive_index_mbox(FILE *db_file,
+ const char *entry_name, regex_t *mbox_filename_regexp,
+ int nb_fields_to_parse, struct parsable_field *fields_to_parse) {
DIR *dir;
struct dirent *dir_e;
struct stat sb;
char subname[PATH_MAX + 1];
- if(lstat(dir_name, &sb) != 0) {
+ if(lstat(entry_name, &sb) != 0) {
fprintf(stderr,
- "mymail: Can not stat \"%s\": %s\n",
- dir_name,
+ "mymail: Cannot stat \"%s\": %s\n",
+ entry_name,
strerror(errno));
exit(EXIT_FAILURE);
}
- dir = opendir(dir_name);
+ dir = opendir(entry_name);
if(dir) {
- printf("Processing directory '%s'.\n", dir_name);
while((dir_e = readdir(dir))) {
if(!ignore_entry(dir_e->d_name)) {
- snprintf(subname, PATH_MAX, "%s/%s", dir_name, dir_e->d_name);
- process_entry(subname, nb_fields_to_parse, fields_to_parse, db_file);
+ snprintf(subname, PATH_MAX, "%s/%s", entry_name, dir_e->d_name);
+ recursive_index_mbox(db_file, subname, mbox_filename_regexp,
+ nb_fields_to_parse, fields_to_parse);
}
}
closedir(dir);
} else {
- index_mbox(dir_name, nb_fields_to_parse, fields_to_parse, db_file);
+ const char *s = entry_name, *filename = s;
+ while(*s) { if(*s == '/') { filename = s+1; }; s++; }
+ if(!mbox_filename_regexp || regexec(mbox_filename_regexp, filename, 0, 0, 0) == 0) {
+ index_mbox(entry_name, nb_fields_to_parse, fields_to_parse, db_file);
+ }
}
}
static struct option long_options[] = {
{ "help", no_argument, 0, 'h' },
{ "version", no_argument, 0, 'v' },
- { "db-file", 1, 0, 'd' },
- { "search-pattern", 1, 0, 's' },
+ { "quiet", no_argument, 0, 'q' },
+ { "use-leading-time", no_argument, 0, 't' },
+ { "db-file-generate", 1, 0, 'd' },
+ { "db-pattern", 1, 0, 'p' },
+ { "db-root", 1, 0, 'r' },
+ { "db-list", 1, 0, 'l' },
+ { "mbox-pattern", 1, 0, 'm' },
+ { "search", 1, 0, 's' },
{ "index", 0, 0, 'i' },
+ { "output", 1, 0, 'o' },
+ { "default-search", 1, 0, 'a' },
{ 0, 0, 0, 0 }
};
-static struct parsable_field fields_to_parse[] = {
- {
- "from",
- "^\\([Ff][Rr][Oo][Mm]:\\|From\\) *",
- { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
- },
+struct time_criterion {
+ char *label;
+ int start_hour, end_hour;
+ int past_week_day;
+};
+
+/*********************************************************************/
+
+static struct time_criterion time_criteria[] = {
+
+ { "8h", 8, -1, -1 },
+ { "24h", 24, -1, -1 },
+ { "48h", 48, -1, -1 },
+ { "week", 24 * 7, -1, -1 },
+ { "month", 24 * 31, -1, -1 },
+ { "year", 24 * 365, -1, -1 },
+
+ { "yesterday", 48, 24, -1 },
+
+ { "today", -1, -1, 0 },
+ { "monday", -1, -1, 1 },
+ { "tuesday", -1, -1, 2 },
+ { "wednesday", -1, -1, 3 },
+ { "thursday", -1, -1, 4 },
+ { "friday", -1, -1, 5 },
+ { "saturday", -1, -1, 6 },
+ { "sunday", -1, -1, 7 },
- {
- "dest",
- "^\\([Tt][Oo]\\|[Cc][Cc]\\|[Bb][Cc][Cc]\\): *",
- { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
- },
};
+/*********************************************************************/
+
+time_t time_for_past_day(int day) {
+ time_t t;
+ struct tm *tm;
+ int delta_day;
+ t = time(0);
+ tm = localtime(&t);
+ if(day > 0) {
+ delta_day = (7 + tm->tm_wday - day) % 7;
+ } else {
+ delta_day = 0;
+ }
+ return t - (delta_day * 3600 * 24 + tm->tm_sec + 60 * tm->tm_min + 3600 * tm->tm_hour);
+}
+
+void init_condition(struct search_condition *condition, const char *full_string,
+ const char *default_search_field) {
+ char full_search_field[TOKEN_BUFFER_SIZE], *search_field;
+ unsigned int k, m;
+ const char *string;
+
+ string = parse_token(full_search_field, TOKEN_BUFFER_SIZE, ' ', full_string);
+ search_field = full_search_field;
+
+ if(search_field[0] == '!') {
+ search_field++;
+ condition->negation = 1;
+ } else {
+ condition->negation = 0;
+ }
+
+ condition->field_id = -1;
+
+ /* Recently */
+
+ for(k = 0; k < sizeof(time_criteria) / sizeof(struct time_criterion); k++) {
+ if(strcmp(time_criteria[k].label, search_field) == 0) {
+ condition->field_id = ID_INTERVAL;
+ if(time_criteria[k].past_week_day < 0) {
+ condition->interval_start = time(0) - 3600 * time_criteria[k].start_hour;
+ if(time_criteria[k].end_hour >= 0) {
+ condition->interval_stop = time(0) - 3600 * time_criteria[k].end_hour;
+ } else {
+ condition->interval_stop = 0;
+ }
+ } else {
+ condition->interval_start = time_for_past_day(time_criteria[k].past_week_day);
+ condition->interval_stop = condition->interval_start + 3600 * 24;
+ }
+ break;
+ }
+ }
+
+ if(condition->field_id == -1) {
+
+ /* No time condition matched, look for the search fields */
+
+ for(m = 0; (m < MAX_ID) && condition->field_id == -1; m++) {
+ if(strncmp(field_keys[m], search_field, strlen(search_field)) == 0) {
+ condition->field_id = m;
+ }
+ }
+
+ /* None match, if there is a default search field, re-run the search with it */
+
+ if(condition->field_id == -1) {
+ if(default_search_field) {
+ for(m = 0; (m < MAX_ID) && condition->field_id == -1; m++) {
+ if(strncmp(field_keys[m],
+ default_search_field, strlen(default_search_field)) == 0) {
+ condition->field_id = m;
+ }
+ }
+ string = full_string;
+ if(string[0] == '!') { string++; }
+ }
+ }
+
+ if(condition->field_id == -1) {
+ fprintf(stderr,
+ "mymail: Syntax error in field key \"%s\".\n",
+ search_field);
+ exit(EXIT_FAILURE);
+ }
+
+ if(regcomp(&condition->regexp,
+ string,
+ REG_ICASE)) {
+ fprintf(stderr,
+ "mymail: Syntax error in regexp \"%s\" for field \"%s\".\n",
+ string,
+ field_keys[condition->field_id]);
+ exit(EXIT_FAILURE);
+ }
+ }
+}
+
+void free_condition(struct search_condition *condition) {
+ if(condition->field_id != ID_INTERVAL) {
+ regfree(&condition->regexp);
+ }
+}
+
+/*********************************************************************/
+/*********************************************************************/
+/*********************************************************************/
+
int main(int argc, char **argv) {
+ char *db_filename = 0;
+ char *db_filename_regexp_string = 0;
+ char *db_root_path = 0;
+ char *db_filename_list = 0;
+ char *mbox_filename_regexp_string = 0;
+ char *default_search_field;
+ char output_filename[PATH_MAX + 1];
+ int action_index = 0;
int error = 0, show_help = 0;
- const int nb_fields_to_parse = sizeof(fields_to_parse) / sizeof(struct parsable_field);
+ const unsigned int nb_fields_to_parse =
+ sizeof(fields_to_parse) / sizeof(struct parsable_field);
char c;
- int f;
+ unsigned int f, n;
+ unsigned int nb_search_conditions;
+ struct search_condition search_conditions[MAX_NB_SEARCH_CONDITIONS];
- paranoid = 0;
- action_index = 0;
- search_pattern = 0;
+ if(regcomp(&global_leading_from_line_regexp, LEADING_FROM_LINE_REGEXP_STRING, 0)) {
+ fprintf(stderr,
+ "mymail: Cannot compile leading \"from\" line regexp. That is strange.\n");
+ exit(EXIT_FAILURE);
+ }
+
+ global_quiet = 0;
+ global_use_leading_time = 0;
+ default_search_field = 0;
+ strncpy(output_filename, "", PATH_MAX);
setlocale(LC_ALL, "");
- while ((c = getopt_long(argc, argv, "hvip:s:",
+ nb_search_conditions = 0;
+
+ while ((c = getopt_long(argc, argv, "hvqip:s:d:r:l:o:a:m:",
long_options, NULL)) != -1) {
switch(c) {
print_version(stdout);
break;
+ case 'q':
+ global_quiet = 1;
+ break;
+
+ case 't':
+ global_use_leading_time = 1;
+ break;
+
case 'i':
action_index = 1;
break;
- case 'p':
+ case 'd':
+ if(db_filename) {
+ fprintf(stderr, "mymail: Can not set the db filename twice.\n");
+ exit(EXIT_FAILURE);
+ }
db_filename = strdup(optarg);
- /* printf("db_filename=\"%s\"\n", db_filename); */
+ break;
+
+ case 'p':
+ if(db_filename_regexp_string) {
+ fprintf(stderr, "mymail: Can not set the db filename pattern twice.\n");
+ exit(EXIT_FAILURE);
+ }
+ db_filename_regexp_string = strdup(optarg);
+ break;
+
+ case 'm':
+ if(mbox_filename_regexp_string) {
+ fprintf(stderr, "mymail: Can not set the mbox filename pattern twice.\n");
+ exit(EXIT_FAILURE);
+ }
+ mbox_filename_regexp_string = strdup(optarg);
+ break;
+
+ case 'o':
+ strncpy(output_filename, optarg, PATH_MAX);
+ break;
+
+ case 'r':
+ if(db_root_path) {
+ fprintf(stderr, "mymail: Can not set the db root path twice.\n");
+ exit(EXIT_FAILURE);
+ }
+ db_root_path = strdup(optarg);
+ break;
+
+ case 'l':
+ if(db_filename_list) {
+ fprintf(stderr, "mymail: Can not set the db filename list twice.\n");
+ exit(EXIT_FAILURE);
+ }
+ db_filename_list = strdup(optarg);
break;
case 's':
- if(search_pattern) {
- fprintf(stderr, "mymail: Search pattern already defined.\n");
+ if(nb_search_conditions == MAX_NB_SEARCH_CONDITIONS) {
+ fprintf(stderr, "mymail: Too many search patterns.\n");
exit(EXIT_FAILURE);
}
- search_pattern = strdup(optarg);
+ init_condition(&search_conditions[nb_search_conditions], optarg, default_search_field);
+ nb_search_conditions++;
+ break;
+
+ case 'a':
+ default_search_field = optarg;
break;
default:
}
}
- if(!db_filename) {
- char *default_db_filename = getenv("MYMAIL_DB_FILE");
- if(!default_db_filename) { default_db_filename = "/tmp/mymail.db"; }
- db_filename = strdup(default_db_filename);
- }
+ /* Set all the values that may defined in the arguments, through
+ environment variables, or hard-coded */
+
+ db_filename = default_value(db_filename,
+ "MYMAIL_DB_FILE",
+ "mymail.db");
+
+ db_filename_regexp_string = default_value(db_filename_regexp_string,
+ "MYMAIL_DB_FILE",
+ "\\.db$");
+
+ db_root_path = default_value(db_root_path,
+ "MYMAIL_DB_ROOT",
+ 0);
+
+ db_filename_list = default_value(db_filename_list,
+ "MYMAIL_DB_LIST",
+ 0);
+
+ mbox_filename_regexp_string = default_value(mbox_filename_regexp_string,
+ "MYMAIL_MBOX_PATTERN",
+ 0);
+
+ /* Start the processing */
if(error) {
print_usage(stderr);
exit(EXIT_SUCCESS);
}
+ /* mbox indexing */
+
if(action_index) {
- FILE *db_file = fopen(db_filename, "w");
- if(!db_file) {
- fprintf(stderr,
- "mymail: Can not open \"%s\" for writing: %s\n",
- db_filename,
- strerror(errno));
- exit(EXIT_FAILURE);
+ FILE *db_file;
+ regex_t mbox_filename_regexp_static;
+ regex_t *mbox_filename_regexp;
+
+ if(mbox_filename_regexp_string) {
+ if(regcomp(&mbox_filename_regexp_static,
+ mbox_filename_regexp_string,
+ 0)) {
+ fprintf(stderr,
+ "mymail: Syntax error in regexp \"%s\".\n",
+ mbox_filename_regexp_string);
+ exit(EXIT_FAILURE);
+ }
+ mbox_filename_regexp = &mbox_filename_regexp_static;
+ } else {
+ mbox_filename_regexp = 0;
}
+ db_file = safe_fopen(db_filename, "w", "index file for indexing");
+
for(f = 0; f < nb_fields_to_parse; f++) {
if(regcomp(&fields_to_parse[f].regexp,
fields_to_parse[f].regexp_string,
- REG_ICASE)) {
+ fields_to_parse[f].cflags)) {
fprintf(stderr,
"mymail: Syntax error in regexp \"%s\" for field \"%s\".\n",
fields_to_parse[f].regexp_string,
- fields_to_parse[f].name);
+ field_keys[fields_to_parse[f].id]);
exit(EXIT_FAILURE);
}
}
+ fprintf(db_file, "%s version_%s raw\n", MYMAIL_DB_MAGIC_TOKEN, VERSION);
+
while(optind < argc) {
- process_entry(argv[optind],
- nb_fields_to_parse, fields_to_parse, db_file);
+ recursive_index_mbox(db_file,
+ argv[optind], mbox_filename_regexp,
+ nb_fields_to_parse, fields_to_parse);
optind++;
}
+ fflush(db_file);
fclose(db_file);
+ if(mbox_filename_regexp) {
+ regfree(mbox_filename_regexp);
+ }
+
for(f = 0; f < nb_fields_to_parse; f++) {
regfree(&fields_to_parse[f].regexp);
}
}
+ /* Mail search */
+
else {
- if(search_pattern) {
- FILE *db_file;
- char *search_name;
- char *search_regexp_string;
- search_name = search_pattern;
- search_regexp_string = segment_next_field(search_pattern);
- if(!*search_regexp_string) {
- fprintf(stderr,
- "Syntax error in the search pattern.\n");
- exit(EXIT_FAILURE);
+
+ FILE *output_file;
+ int nb_extracted_mails = 0;
+
+ if(output_filename[0]) {
+ output_file = safe_fopen(output_filename, "w", "result mbox");
+ } else {
+ output_file = stdout;
+ global_quiet = 1;
+ }
+
+ if(nb_search_conditions > 0) {
+
+ /* Recursive search if db_root_path is set */
+
+ if(db_root_path) {
+ regex_t db_filename_regexp;
+ if(regcomp(&db_filename_regexp,
+ db_filename_regexp_string,
+ 0)) {
+ fprintf(stderr,
+ "mymail: Syntax error in regexp \"%s\".\n",
+ db_filename_regexp_string);
+ exit(EXIT_FAILURE);
+ }
+
+ nb_extracted_mails += recursive_search_in_db(db_root_path, &db_filename_regexp,
+ nb_search_conditions, search_conditions,
+ output_file);
+
+ regfree(&db_filename_regexp);
}
- db_file = fopen(db_filename, "r");
+ /* Search in all db files listed in db_filename_list */
- if(!db_file) {
- fprintf(stderr,
- "mymail: Can not open \"%s\" for reading: %s\n",
- db_filename,
- strerror(errno));
- exit(EXIT_FAILURE);
+ if(db_filename_list) {
+ char db_filename[PATH_MAX + 1];
+ const char *s;
+
+ s = db_filename_list;
+
+ while(*s) {
+ s = parse_token(db_filename, PATH_MAX + 1, ';', s);
+
+ if(db_filename[0]) {
+ nb_extracted_mails +=
+ search_in_db(db_filename, nb_search_conditions, search_conditions, output_file);
+ }
+ }
}
- search_in_db(search_name, search_regexp_string, db_file);
+ /* Search in all db files listed in the command arguments */
- fclose(db_file);
- free(search_pattern);
+ while(optind < argc) {
+ nb_extracted_mails +=
+ search_in_db(argv[optind], nb_search_conditions, search_conditions, output_file);
+ optind++;
+ }
}
+
+ if(!global_quiet) {
+ if(nb_extracted_mails > 0) {
+ printf("Found %d matching mails.\n", nb_extracted_mails);
+ } else {
+ printf("No matching mail found.\n");
+ }
+ }
+
+ fflush(output_file);
+
+ if(output_file != stdout) {
+ fclose(output_file);
+ }
+ }
+
+ for(n = 0; n < nb_search_conditions; n++) {
+ free_condition(&search_conditions[n]);
}
free(db_filename);
+ free(db_filename_regexp_string);
+ free(db_root_path);
+ free(db_filename_list);
+ free(mbox_filename_regexp_string);
+
+ regfree(&global_leading_from_line_regexp);
exit(EXIT_SUCCESS);
}
projects / mymail.git / blobdiff