X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=mymail.git;a=blobdiff_plain;f=mymail.c;h=5e2cb21ed5d3b455691eca41e09d42fca90a5b49;hp=54febff35e85eb3d8b1fb07995f49ba2881d38e7;hb=7b9e0f6566b6a597dc83f79dd405e0ddd520a7ff;hpb=5419b44224e0c8e8ea650d51c52136429aa298d7 diff --git a/mymail.c b/mymail.c index 54febff..5e2cb21 100644 --- a/mymail.c +++ b/mymail.c @@ -25,7 +25,7 @@ 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. @@ -46,20 +46,21 @@ #include #define MYMAIL_DB_MAGIC_TOKEN "mymail_index_file" -#define VERSION "0.9.1" +#define VERSION "0.9.5" -#define MAX_NB_SEARCH_CONDITIONS 10 +#define MAX_NB_SEARCH_CONDITIONS 32 #define BUFFER_SIZE 65536 #define TOKEN_BUFFER_SIZE 1024 -regex_t leading_from_line_regexp; +#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 paranoid; -int quiet; -char *default_search_field; +int global_quiet; +int global_use_leading_time; + +regex_t global_leading_from_line_regexp; /********************************************************************/ @@ -76,7 +77,7 @@ enum { MAX_ID }; -static char *field_names[] = { +static char *field_keys[] = { "mail", "lead", "from", @@ -150,30 +151,46 @@ int xor(int a, int b) { return (a && !b) || (!a && b); } -char *parse_token(char *token_buffer, size_t token_buffer_size, - char separator, char *string) { +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++; + while(*string == separator) { string++; } *u = '\0'; return string; } -/********************************************************************/ - -/* malloc with error checking. */ +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: cannot allocate memory: %s\n", strerror(errno)); + "mymail: Cannot open file '%s' (%s) with mode \"%s\".\n", + path, comment, mode); exit(EXIT_FAILURE); } - return p; } /*********************************************************************/ @@ -194,15 +211,20 @@ void print_usage(FILE *out) { 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-pattern \n"); fprintf(out, " set the db filename pattern for recursive search\n"); fprintf(out, " -r , --db-root \n"); fprintf(out, " set the db root path for recursive search\n"); fprintf(out, " -l , --db-list \n"); fprintf(out, " set the semicolon-separated list of db files for search\n"); + fprintf(out, " -m , --mbox-pattern \n"); + fprintf(out, " set the mbox filename pattern for recursive search\n"); fprintf(out, " -s , --search \n"); fprintf(out, " search for matching mails in the db file\n"); - fprintf(out, " -d , --db-file \n"); + fprintf(out, " -d , --db-file-generate \n"); fprintf(out, " set the db filename for indexing\n"); fprintf(out, " -i, --index\n"); fprintf(out, " index mails\n"); @@ -214,62 +236,50 @@ void print_usage(FILE *out) { /*********************************************************************/ -time_t time_for_past_day(int day) { - time_t t; - struct tm *tm; - int delta_day; - t = time(0); - tm = localtime(&t); - delta_day = (7 + tm->tm_wday - day) % 7 + 1; - return t - delta_day * 3600 * 24 + tm->tm_sec + 60 * tm->tm_min + 3600 * tm->tm_hour; -} - -/*********************************************************************/ - int ignore_entry(const char *name) { return - /* strcmp(name, ".") == 0 || */ - /* strcmp(name, "..") == 0 || */ + strcmp(name, ".") == 0 || + strcmp(name, "..") == 0 || (name[0] == '.' && name[1] != '/'); } -int is_a_leading_from_line(int last_mbox_line_was_empty, char *mbox_line) { +int is_a_leading_from_line(char *mbox_line) { return - - /* - - The mbox man page in qmail documentation states: - - > The reader should not attempt to take advantage of the fact - > that every From_ line (past the beginning of the file) is - > preceded by a blank line. - - */ - - /* last_mbox_line_was_empty && */ strncmp(mbox_line, "From ", 5) == 0 && - regexec(&leading_from_line_regexp, mbox_line, 0, 0, 0) == 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, char *mbox_value) { + int mbox_id, const char *mbox_value) { if(condition->field_id == ID_INTERVAL) { - if(mbox_id == ID_LEADING_LINE) { - char *c; - time_t t; - struct tm tm; - - 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)); + 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 { - return 0; + 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 @@ -300,29 +310,22 @@ void update_body_hits(char *mail_filename, int position_in_mail, int *hits) { FILE *mail_file; int header, n; - int last_mbox_line_was_empty; char raw_mbox_line[BUFFER_SIZE]; int nb_body_hits; nb_body_hits = 0; header = 1; - mail_file = fopen(mail_filename, "r"); - - if(!mail_file) { - fprintf(stderr, - "mymail: Cannot open mbox '%s' for body scan.\n", - mail_filename); - exit(EXIT_FAILURE); - } + 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'); + /* last_mbox_line_was_empty = (raw_mbox_line[0] == '\n'); */ + /* if(last_mbox_line_was_empty) { header = 0; } */ - 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++) { @@ -337,7 +340,7 @@ void update_body_hits(char *mail_filename, int position_in_mail, } if(!fgets(raw_mbox_line, BUFFER_SIZE, mail_file) || - (is_a_leading_from_line(last_mbox_line_was_empty, raw_mbox_line))) + (is_a_leading_from_line(raw_mbox_line))) break; } } @@ -345,32 +348,21 @@ void update_body_hits(char *mail_filename, int position_in_mail, fclose(mail_file); } -void write_mail(const char *mail_filename, unsigned long int position_in_mail, +void extract_mail(const char *mail_filename, unsigned long int position_in_mail, FILE *output_file) { char raw_mbox_line[BUFFER_SIZE]; - int last_mbox_line_was_empty; FILE *mail_file; - mail_file = fopen(mail_filename, "r"); - - if(!mail_file) { - fprintf(stderr, - "mymail: Cannot open mbox '%s' for mail extraction.\n", - mail_filename); - exit(EXIT_FAILURE); - } - + 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)) { - last_mbox_line_was_empty = 0; fprintf(output_file, "%s", raw_mbox_line); while(1) { if(!fgets(raw_mbox_line, BUFFER_SIZE, mail_file) || - (is_a_leading_from_line(last_mbox_line_was_empty, raw_mbox_line)) + (is_a_leading_from_line(raw_mbox_line)) ) break; - last_mbox_line_was_empty = (raw_mbox_line[0] == '\n'); fprintf(output_file, "%s", raw_mbox_line); } } @@ -378,35 +370,70 @@ void write_mail(const char *mail_filename, unsigned long int position_in_mail, fclose(mail_file); } -void search_in_db(const char *db_filename, - int nb_search_conditions, - struct search_condition *search_conditions, - FILE *output_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 mbox_name[TOKEN_BUFFER_SIZE], *mbox_value; + char mbox_key[TOKEN_BUFFER_SIZE]; + const char *mbox_value; int mbox_id; int already_written, m, n; - int nb_body_conditions, nb_fulfilled_body_conditions; + int nb_body_conditions; FILE *db_file; + int nb_extracted_mails; - if(!quiet) { + nb_extracted_mails = 0; + + if(!global_quiet) { printf("Searching in '%s' ... ", db_filename); fflush(stdout); } - db_file = fopen(db_filename, "r"); - - if(!db_file) { - fprintf(stderr, - "mymail: Cannot open \"%s\" for reading: %s\n", - db_filename, - strerror(errno)); - exit(EXIT_FAILURE); - } + db_file = safe_fopen(db_filename, "r", "index file for search"); /* First, check the db file leading line integrity */ @@ -441,47 +468,18 @@ void search_in_db(const char *db_filename, strcpy(current_mail_filename, ""); while(fgets(raw_db_line, BUFFER_SIZE, db_file)) { - mbox_value = parse_token(mbox_name, TOKEN_BUFFER_SIZE, ' ', raw_db_line); + mbox_value = parse_token(mbox_key, TOKEN_BUFFER_SIZE, ' ', raw_db_line); - if(strcmp("mail", mbox_name) == 0) { + if(strcmp("mail", mbox_key) == 0) { char position_in_file_string[TOKEN_BUFFER_SIZE]; - - if(current_mail_filename[0]) { - - /* 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 */ - - if(nb_body_conditions > 0) { - update_body_hits(current_mail_filename, current_position_in_mail, - nb_search_conditions, search_conditions, - nb_body_conditions, - hits); - } - - nb_fulfilled_body_conditions = 0; - - 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++; - } - } - - if(nb_body_conditions == nb_fulfilled_body_conditions) { - write_mail(current_mail_filename, current_position_in_mail, output_file); - } - } + 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); @@ -491,7 +489,7 @@ void search_in_db(const char *db_filename, else { mbox_id = -1; for(m = 0; (m < MAX_ID) && mbox_id == -1; m++) { - if(strncmp(field_names[m], mbox_name, strlen(mbox_name)) == 0) { + if(strncmp(field_keys[m], mbox_key, strlen(mbox_key)) == 0) { mbox_id = m; } } @@ -502,22 +500,33 @@ void search_in_db(const char *db_filename, } } + 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(!quiet) { + if(!global_quiet) { printf("done.\n"); fflush(stdout); } + + return nb_extracted_mails; } -void 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) { +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, @@ -527,15 +536,17 @@ void recursive_search_in_db(const char *entry_name, regex_t *db_filename_regexp, 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); - recursive_search_in_db(subname, db_filename_regexp, - nb_search_conditions, search_conditions, - output_file); + nb_extracted_mails += recursive_search_in_db(subname, db_filename_regexp, + nb_search_conditions, search_conditions, + output_file); } } closedir(dir); @@ -546,21 +557,25 @@ void recursive_search_in_db(const char *entry_name, regex_t *db_filename_regexp, while(*s) { if(*s == '/') { filename = s+1; } s++; } if(regexec(db_filename_regexp, filename, 0, 0, 0) == 0) { - search_in_db(entry_name, nb_search_conditions, search_conditions, output_file); + 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, +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_mbox_line, 1, &matches, 0) == 0) { fprintf(db_file, "%s %s\n", - field_names[fields_to_parse[f].id], + field_keys[fields_to_parse[f].id], raw_mbox_line + matches.rm_eo); } } @@ -572,16 +587,10 @@ void index_mbox(const char *mbox_filename, char raw_mbox_line[BUFFER_SIZE], full_line[BUFFER_SIZE]; char *end_of_full_line; FILE *file; - int in_header, new_header, last_mbox_line_was_empty; + int in_header, new_header; unsigned long int position_in_file; - file = fopen(mbox_filename, "r"); - - if(!file) { - fprintf(stderr, "mymail: Cannot open '%s'.\n", mbox_filename); - if(paranoid) { exit(EXIT_FAILURE); } - return; - } + file = safe_fopen(mbox_filename, "r", "mbox for indexing"); in_header = 0; new_header = 0; @@ -589,25 +598,34 @@ void index_mbox(const char *mbox_filename, position_in_file = 0; end_of_full_line = 0; full_line[0] = '\0'; - last_mbox_line_was_empty = 1; while(fgets(raw_mbox_line, BUFFER_SIZE, file)) { - if(is_a_leading_from_line(last_mbox_line_was_empty, raw_mbox_line)) { + 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", mbox_filename, position_in_file); fprintf(stderr, "%s", raw_mbox_line); - if(paranoid) { exit(EXIT_FAILURE); } } + + /* printf("LEADING_LINE %s", raw_mbox_line); */ + in_header = 1; new_header = 1; } else if(raw_mbox_line[0] == '\n') { - if(in_header) { in_header = 0; } + 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'; + } } - last_mbox_line_was_empty = (raw_mbox_line[0] == '\n'); - if(in_header) { if(new_header) { fprintf(db_file, "mail %lu %s\n", position_in_file, mbox_filename); @@ -615,6 +633,7 @@ void index_mbox(const char *mbox_filename, } 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++) = ' '; @@ -626,17 +645,10 @@ void index_mbox(const char *mbox_filename, } else { - /* - if(!((raw_mbox_line[0] >= 'a' && raw_mbox_line[0] <= 'z') || - (raw_mbox_line[0] >= 'A' && raw_mbox_line[0] <= 'Z'))) { - fprintf(stderr, - "Header line syntax error %s:%lu.\n", - mbox_filename, position_in_file); - fprintf(stderr, "%s", raw_mbox_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); } @@ -657,7 +669,7 @@ void index_mbox(const char *mbox_filename, } void recursive_index_mbox(FILE *db_file, - const char *entry_name, + 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; @@ -678,12 +690,17 @@ void recursive_index_mbox(FILE *db_file, while((dir_e = readdir(dir))) { if(!ignore_entry(dir_e->d_name)) { snprintf(subname, PATH_MAX, "%s/%s", entry_name, dir_e->d_name); - recursive_index_mbox(db_file, subname, nb_fields_to_parse, fields_to_parse); + recursive_index_mbox(db_file, subname, mbox_filename_regexp, + nb_fields_to_parse, fields_to_parse); } } closedir(dir); } else { - index_mbox(entry_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); + } } } @@ -699,10 +716,12 @@ static struct option long_options[] = { { "help", no_argument, 0, 'h' }, { "version", no_argument, 0, 'v' }, { "quiet", no_argument, 0, 'q' }, - { "db-file", 1, 0, 'd' }, + { "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' }, @@ -710,135 +729,118 @@ static struct option long_options[] = { { 0, 0, 0, 0 } }; -/*********************************************************************/ - -void init_condition(struct search_condition *condition, char *full_string) { - char full_search_field[TOKEN_BUFFER_SIZE], *search_field; - int m; - 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; - } - - /* Recently */ - - if(strcmp(search_field, "8h") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time(0) - 3600 * 8; - condition->interval_stop = 0; - } +struct time_criterion { + char *label; + int start_hour, end_hour; + int past_week_day; +}; - else if(strcmp(search_field, "24h") == 0 || - strcmp(search_field, "today") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time(0) - 3600 * 24; - condition->interval_stop = 0; - } +/*********************************************************************/ - else if(strcmp(search_field, "week") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time(0) - 3600 * 24 * 7; - condition->interval_stop = 0; - } +static struct time_criterion time_criteria[] = { - else if(strcmp(search_field, "month") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time(0) - 3600 * 24 * 31; - condition->interval_stop = 0; - } + { "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 }, - else if(strcmp(search_field, "year") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time(0) - 3600 * 24 * 365; - condition->interval_stop = 0; - } + { "yesterday", 48, 24, -1 }, - /* Yesterday */ + { "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 }, - else if(strcmp(search_field, "yesterday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time(0) - 2 * 3600 * 24; - condition->interval_stop = condition->interval_start + 3600 * 24; - } +}; - /* Week days */ +/*********************************************************************/ - else if(strcmp(search_field, "monday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time_for_past_day(1); - condition->interval_stop = condition->interval_start + 3600 * 24; +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); +} - else if(strcmp(search_field, "tuesday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time_for_past_day(2); - condition->interval_stop = condition->interval_start + 3600 * 24; - } +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; - else if(strcmp(search_field, "wednesday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time_for_past_day(3); - condition->interval_stop = condition->interval_start + 3600 * 24; - } + string = parse_token(full_search_field, TOKEN_BUFFER_SIZE, ' ', full_string); + search_field = full_search_field; - else if(strcmp(search_field, "thursday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time_for_past_day(4); - condition->interval_stop = condition->interval_start + 3600 * 24; + if(search_field[0] == '!') { + search_field++; + condition->negation = 1; + } else { + condition->negation = 0; } - else if(strcmp(search_field, "friday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time_for_past_day(5); - condition->interval_stop = condition->interval_start + 3600 * 24; - } + condition->field_id = -1; - else if(strcmp(search_field, "saturday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time_for_past_day(6); - condition->interval_stop = condition->interval_start + 3600 * 24; - } + /* Recently */ - else if(strcmp(search_field, "sunday") == 0) { - condition->field_id = ID_INTERVAL; - condition->interval_start = time_for_past_day(7); - condition->interval_stop = condition->interval_start + 3600 * 24; + 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; + } } - else { - - /* header-related conditions */ + if(condition->field_id == -1) { - 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_names[m], search_field, strlen(search_field)) == 0) { + 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_names[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 name \"%s\".\n", + "mymail: Syntax error in field key \"%s\".\n", search_field); exit(EXIT_FAILURE); } @@ -849,7 +851,7 @@ void init_condition(struct search_condition *condition, char *full_string) { fprintf(stderr, "mymail: Syntax error in regexp \"%s\" for field \"%s\".\n", string, - field_names[condition->field_id]); + field_keys[condition->field_id]); exit(EXIT_FAILURE); } } @@ -866,42 +868,38 @@ void free_condition(struct search_condition *condition) { /*********************************************************************/ int main(int argc, char **argv) { - char *db_filename; - char *db_filename_regexp_string; - char *db_root_path; - char *db_filename_list; + 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; + 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, n; - int nb_search_conditions; - FILE *output_file; + unsigned int f, n; + unsigned int nb_search_conditions; struct search_condition search_conditions[MAX_NB_SEARCH_CONDITIONS]; - if(regcomp(&leading_from_line_regexp, - "^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$", - 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); } - paranoid = 0; - action_index = 0; - db_filename = 0; - db_filename_regexp_string = 0; - db_root_path = 0; - db_filename_list = 0; - quiet = 0; + global_quiet = 0; + global_use_leading_time = 0; default_search_field = 0; + strncpy(output_filename, "", PATH_MAX); setlocale(LC_ALL, ""); nb_search_conditions = 0; - while ((c = getopt_long(argc, argv, "hvqip:s:d:r:l:o:a:", + while ((c = getopt_long(argc, argv, "hvqip:s:d:r:l:o:a:m:", long_options, NULL)) != -1) { switch(c) { @@ -915,7 +913,11 @@ int main(int argc, char **argv) { break; case 'q': - quiet = 1; + global_quiet = 1; + break; + + case 't': + global_use_leading_time = 1; break; case 'i': @@ -923,22 +925,46 @@ int main(int argc, char **argv) { break; case 'd': + if(db_filename) { + fprintf(stderr, "mymail: Can not set the db filename twice.\n"); + exit(EXIT_FAILURE); + } db_filename = strdup(optarg); 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; @@ -947,7 +973,7 @@ int main(int argc, char **argv) { fprintf(stderr, "mymail: Too many search patterns.\n"); exit(EXIT_FAILURE); } - init_condition(&search_conditions[nb_search_conditions], optarg); + init_condition(&search_conditions[nb_search_conditions], optarg, default_search_field); nb_search_conditions++; break; @@ -961,56 +987,30 @@ int main(int argc, char **argv) { } } - if(!db_filename) { - char *default_db_filename = getenv("MYMAIL_DB_FILE"); + /* Set all the values that may defined in the arguments, through + environment variables, or hard-coded */ - if(!default_db_filename) { - default_db_filename = "mymail.db"; - } + db_filename = default_value(db_filename, + "MYMAIL_DB_FILE", + "mymail.db"); - db_filename = strdup(default_db_filename); - } + db_filename_regexp_string = default_value(db_filename_regexp_string, + "MYMAIL_DB_FILE", + "\\.db$"); - if(!db_filename_regexp_string) { - char *default_db_filename_regexp_string = getenv("MYMAIL_DB_PATTERN"); + db_root_path = default_value(db_root_path, + "MYMAIL_DB_ROOT", + 0); - if(!default_db_filename_regexp_string) { - default_db_filename_regexp_string = "^mymail.db$"; - } + db_filename_list = default_value(db_filename_list, + "MYMAIL_DB_LIST", + 0); - db_filename_regexp_string = strdup(default_db_filename_regexp_string); - } + mbox_filename_regexp_string = default_value(mbox_filename_regexp_string, + "MYMAIL_MBOX_PATTERN", + 0); - if(!db_root_path) { - char *default_db_root_path = getenv("MYMAIL_DB_ROOT"); - - if(default_db_root_path) { - db_root_path = strdup(default_db_root_path); - } - } - - if(!db_filename_list) { - char *default_db_filename_list = getenv("MYMAIL_DB_LIST"); - - if(default_db_filename_list) { - db_filename_list = strdup(default_db_filename_list); - } - } - - if(output_filename[0]) { - output_file = fopen(output_filename, "w"); - - if(!output_file) { - fprintf(stderr, - "mymail: Cannot open result file \"%s\" for writing: %s\n", - output_filename, - strerror(errno)); - exit(EXIT_FAILURE); - } - } else { - output_file = stdout; - quiet = 1; - } + /* Start the processing */ if(error) { print_usage(stderr); @@ -1022,19 +1022,29 @@ int main(int argc, char **argv) { exit(EXIT_SUCCESS); } + /* mbox indexing */ + if(action_index) { FILE *db_file; + regex_t mbox_filename_regexp_static; + regex_t *mbox_filename_regexp; - db_file = fopen(db_filename, "w"); - - if(!db_file) { - fprintf(stderr, - "mymail: Cannot open \"%s\" for writing: %s\n", - db_filename, - strerror(errno)); - exit(EXIT_FAILURE); + 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, @@ -1042,7 +1052,7 @@ int main(int argc, char **argv) { fprintf(stderr, "mymail: Syntax error in regexp \"%s\" for field \"%s\".\n", fields_to_parse[f].regexp_string, - field_names[fields_to_parse[f].id]); + field_keys[fields_to_parse[f].id]); exit(EXIT_FAILURE); } } @@ -1051,7 +1061,7 @@ int main(int argc, char **argv) { while(optind < argc) { recursive_index_mbox(db_file, - argv[optind], + argv[optind], mbox_filename_regexp, nb_fields_to_parse, fields_to_parse); optind++; } @@ -1059,13 +1069,29 @@ int main(int argc, char **argv) { 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 { + 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 */ @@ -1081,9 +1107,9 @@ int main(int argc, char **argv) { exit(EXIT_FAILURE); } - recursive_search_in_db(db_root_path, &db_filename_regexp, - nb_search_conditions, search_conditions, - output_file); + nb_extracted_mails += recursive_search_in_db(db_root_path, &db_filename_regexp, + nb_search_conditions, search_conditions, + output_file); regfree(&db_filename_regexp); } @@ -1092,7 +1118,7 @@ int main(int argc, char **argv) { if(db_filename_list) { char db_filename[PATH_MAX + 1]; - char *s; + const char *s; s = db_filename_list; @@ -1100,7 +1126,8 @@ int main(int argc, char **argv) { s = parse_token(db_filename, PATH_MAX + 1, ';', s); if(db_filename[0]) { - search_in_db(db_filename, nb_search_conditions, search_conditions, output_file); + nb_extracted_mails += + search_in_db(db_filename, nb_search_conditions, search_conditions, output_file); } } } @@ -1108,27 +1135,38 @@ int main(int argc, char **argv) { /* Search in all db files listed in the command arguments */ while(optind < argc) { - search_in_db(argv[optind], nb_search_conditions, search_conditions, output_file); + 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]); } - if(output_file != stdout) { - fflush(output_file); - fclose(output_file); - } - free(db_filename); free(db_filename_regexp_string); free(db_root_path); free(db_filename_list); + free(mbox_filename_regexp_string); - regfree(&leading_from_line_regexp); + regfree(&global_leading_from_line_regexp); exit(EXIT_SUCCESS); }