Mercurial > dovecot > original-hg > dovecot-1.2
view src/lib-imap/imap-envelope.c @ 7182:efc78f6db374 HEAD
Added tag 1.1.beta14 for changeset 88de748a2f17
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Sun, 20 Jan 2008 14:55:38 +0200 |
parents | 7ed926ed7aa4 |
children | b9faf4db2a9f |
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/* Copyright (c) 2002-2008 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "istream.h" #include "str.h" #include "message-address.h" #include "message-parser.h" #include "imap-parser.h" #include "imap-envelope.h" #include "imap-quote.h" struct message_part_envelope_data { pool_t pool; const char *date, *subject; struct message_address *from, *sender, *reply_to; struct message_address *to, *cc, *bcc; const char *in_reply_to, *message_id; }; const char *imap_envelope_headers[] = { "Date", "Subject", "From", "Sender", "Reply-To", "To", "Cc", "Bcc", "In-Reply-To", "Message-ID", NULL }; bool imap_envelope_get_field(const char *name, enum imap_envelope_field *ret) { *ret = (enum imap_envelope_field)-1; switch (*name) { case 'B': case 'b': if (strcasecmp(name, "Bcc") == 0) *ret = IMAP_ENVELOPE_BCC; break; case 'C': case 'c': if (strcasecmp(name, "Cc") == 0) *ret = IMAP_ENVELOPE_CC; break; case 'D': case 'd': if (strcasecmp(name, "Date") == 0) *ret = IMAP_ENVELOPE_DATE; break; case 'F': case 'f': if (strcasecmp(name, "From") == 0) *ret = IMAP_ENVELOPE_FROM; break; case 'I': case 'i': if (strcasecmp(name, "In-reply-to") == 0) *ret = IMAP_ENVELOPE_IN_REPLY_TO; break; case 'M': case 'm': if (strcasecmp(name, "Message-id") == 0) *ret = IMAP_ENVELOPE_MESSAGE_ID; break; case 'R': case 'r': if (strcasecmp(name, "Reply-to") == 0) *ret = IMAP_ENVELOPE_REPLY_TO; break; case 'S': case 's': if (strcasecmp(name, "Subject") == 0) *ret = IMAP_ENVELOPE_SUBJECT; if (strcasecmp(name, "Sender") == 0) *ret = IMAP_ENVELOPE_SENDER; break; case 'T': case 't': if (strcasecmp(name, "To") == 0) *ret = IMAP_ENVELOPE_TO; break; } return *ret != (enum imap_envelope_field)-1; } void imap_envelope_parse_header(pool_t pool, struct message_part_envelope_data **data, struct message_header_line *hdr) { struct message_part_envelope_data *d; enum imap_envelope_field field; struct message_address **addr_p; const char **str_p; if (*data == NULL) { *data = p_new(pool, struct message_part_envelope_data, 1); (*data)->pool = pool; } if (hdr == NULL || !imap_envelope_get_field(hdr->name, &field)) return; if (hdr->continues) { /* wait for full value */ hdr->use_full_value = TRUE; return; } d = *data; addr_p = NULL; str_p = NULL; switch (field) { case IMAP_ENVELOPE_DATE: str_p = &d->date; break; case IMAP_ENVELOPE_SUBJECT: str_p = &d->subject; break; case IMAP_ENVELOPE_MESSAGE_ID: str_p = &d->message_id; break; case IMAP_ENVELOPE_IN_REPLY_TO: str_p = &d->in_reply_to; break; case IMAP_ENVELOPE_CC: addr_p = &d->cc; break; case IMAP_ENVELOPE_BCC: addr_p = &d->bcc; break; case IMAP_ENVELOPE_FROM: addr_p = &d->from; break; case IMAP_ENVELOPE_SENDER: addr_p = &d->sender; break; case IMAP_ENVELOPE_TO: addr_p = &d->to; break; case IMAP_ENVELOPE_REPLY_TO: addr_p = &d->reply_to; break; case IMAP_ENVELOPE_FIELDS: break; } if (addr_p != NULL) { *addr_p = message_address_parse(pool, hdr->full_value, hdr->full_value_len, (unsigned int)-1, TRUE); } if (str_p != NULL) *str_p = imap_quote(pool, hdr->full_value, hdr->full_value_len); } static void imap_write_address(string_t *str, struct message_address *addr) { if (addr == NULL) { str_append(str, "NIL"); return; } str_append_c(str, '('); while (addr != NULL) { str_append_c(str, '('); imap_quote_append_string(str, addr->name, TRUE); str_append_c(str, ' '); imap_quote_append_string(str, addr->route, TRUE); str_append_c(str, ' '); imap_quote_append_string(str, addr->mailbox, TRUE); str_append_c(str, ' '); imap_quote_append_string(str, addr->domain, TRUE); str_append_c(str, ')'); addr = addr->next; } str_append_c(str, ')'); } void imap_envelope_write_part_data(struct message_part_envelope_data *data, string_t *str) { static const char *empty_envelope = "NIL NIL NIL NIL NIL NIL NIL NIL NIL NIL"; if (data == NULL) { str_append(str, empty_envelope); return; } str_append(str, NVL(data->date, "NIL")); str_append_c(str, ' '); str_append(str, NVL(data->subject, "NIL")); str_append_c(str, ' '); imap_write_address(str, data->from); str_append_c(str, ' '); imap_write_address(str, NVL(data->sender, data->from)); str_append_c(str, ' '); imap_write_address(str, NVL(data->reply_to, data->from)); str_append_c(str, ' '); imap_write_address(str, data->to); str_append_c(str, ' '); imap_write_address(str, data->cc); str_append_c(str, ' '); imap_write_address(str, data->bcc); str_append_c(str, ' '); str_append(str, NVL(data->in_reply_to, "NIL")); str_append_c(str, ' '); str_append(str, NVL(data->message_id, "NIL")); } static bool imap_address_arg_append(const struct imap_arg *arg, string_t *str, bool *in_group) { const struct imap_arg *list_args; unsigned int list_count; const char *args[4]; int i; if (arg->type != IMAP_ARG_LIST) return FALSE; list_args = IMAP_ARG_LIST_ARGS(arg); list_count = IMAP_ARG_LIST_COUNT(arg); /* we require 4 arguments, strings or NILs */ if (list_count < 4) return FALSE; for (i = 0; i < 4; i++) { if (list_args[i].type == IMAP_ARG_NIL) args[i] = NULL; else if (list_args[i].type == IMAP_ARG_STRING || list_args[i].type == IMAP_ARG_ATOM) args[i] = IMAP_ARG_STR(&list_args[i]); else return FALSE; } if (*in_group && args[0] == NULL && args[1] == NULL && args[2] == NULL && args[3] == NULL) { /* end of group */ str_append_c(str, ';'); *in_group = FALSE; return TRUE; } if (str_len(str) > 0) str_append(str, ", "); if (!*in_group && args[0] == NULL && args[1] == NULL && args[2] != NULL && args[3] == NULL) { /* beginning of group */ str_append(str, args[2]); str_append(str, ": "); *in_group = TRUE; return TRUE; } /* a) mailbox@domain b) name <@route:mailbox@domain> */ if (args[0] == NULL && args[1] == NULL) { if (args[2] != NULL) str_append(str, args[2]); if (args[3] != NULL) { str_append_c(str, '@'); str_append(str, args[3]); } } else { if (args[0] != NULL) { str_append(str, args[0]); str_append_c(str, ' '); } str_append_c(str, '<'); if (args[1] != NULL) { str_append_c(str, '@'); str_append(str, args[1]); str_append_c(str, ':'); } if (args[2] != NULL) str_append(str, args[2]); if (args[3] != NULL) { str_append_c(str, '@'); str_append(str, args[3]); } str_append_c(str, '>'); } return TRUE; } static const char *imap_envelope_parse_address(const struct imap_arg *arg) { const struct imap_arg *list_args; string_t *str; bool in_group; if (arg->type != IMAP_ARG_LIST) return NULL; in_group = FALSE; str = t_str_new(128); list_args = IMAP_ARG_LIST_ARGS(arg); for (; list_args->type != IMAP_ARG_EOL; list_args++) { if (!imap_address_arg_append(list_args, str, &in_group)) return NULL; } return str_c(str); } static const char *imap_envelope_parse_first_mailbox(const struct imap_arg *arg) { const struct imap_arg *list_args; /* ((...)(...) ...) */ if (arg->type != IMAP_ARG_LIST) return NULL; list_args = IMAP_ARG_LIST_ARGS(arg); if (list_args->type == IMAP_ARG_EOL) return ""; /* (name route mailbox domain) */ if (IMAP_ARG_LIST_COUNT(list_args) != 4) return NULL; list_args = IMAP_ARG_LIST_ARGS(list_args); return t_strdup(imap_arg_string(&list_args[2])); } static bool imap_envelope_parse_arg(const struct imap_arg *arg, enum imap_envelope_field field, const char *envelope, enum imap_envelope_result_type result_type, const char **result) { const char *value = NULL; if (arg->type == IMAP_ARG_NIL) { *result = NULL; return TRUE; } switch (result_type) { case IMAP_ENVELOPE_RESULT_TYPE_STRING: if (field >= IMAP_ENVELOPE_FROM && field <= IMAP_ENVELOPE_BCC) value = imap_envelope_parse_address(arg); else value = t_strdup(imap_arg_string(arg)); break; case IMAP_ENVELOPE_RESULT_TYPE_FIRST_MAILBOX: i_assert(field >= IMAP_ENVELOPE_FROM && field <= IMAP_ENVELOPE_BCC); value = imap_envelope_parse_first_mailbox(arg); break; } *result = value; if (value != NULL) return TRUE; else { i_error("Invalid field %u in IMAP envelope: %s", field, envelope); return FALSE; } } bool imap_envelope_parse(const char *envelope, enum imap_envelope_field field, enum imap_envelope_result_type result_type, const char **result) { struct istream *input; struct imap_parser *parser; const struct imap_arg *args; int ret; i_assert(field < IMAP_ENVELOPE_FIELDS); input = i_stream_create_from_data(envelope, strlen(envelope)); parser = imap_parser_create(input, NULL, (size_t)-1); (void)i_stream_read(input); ret = imap_parser_read_args(parser, field+1, 0, &args); if (ret > (int)field) { ret = imap_envelope_parse_arg(&args[field], field, envelope, result_type, result); } else { i_error("Error parsing IMAP envelope: %s", envelope); *result = NULL; ret = FALSE; } imap_parser_destroy(&parser); i_stream_destroy(&input); return ret; }