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path: root/kmicromail/libetpan/mime/mailmime_disposition.c
authorzautrix <zautrix>2004-07-03 16:33:12 (UTC)
committer zautrix <zautrix>2004-07-03 16:33:12 (UTC)
commite3b89230f065c48c84b48c88edb6eb088374c487 (patch) (side-by-side diff)
tree162ea2ef909a6f82ccfcedf45d80d6c821174912 /kmicromail/libetpan/mime/mailmime_disposition.c
parent2dd6ac0b2d24c91d35ce674a6c26351352df2b15 (diff)
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Initial revision
Diffstat (limited to 'kmicromail/libetpan/mime/mailmime_disposition.c') (more/less context) (ignore whitespace changes)
-rw-r--r--kmicromail/libetpan/mime/mailmime_disposition.c595
1 files changed, 595 insertions, 0 deletions
diff --git a/kmicromail/libetpan/mime/mailmime_disposition.c b/kmicromail/libetpan/mime/mailmime_disposition.c
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+++ b/kmicromail/libetpan/mime/mailmime_disposition.c
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+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2002 - DINH Viet Hoa
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mailmime_disposition.h"
+#include "mailmime.h"
+
+#include <ctype.h>
+#include <stdlib.h>
+
+static int
+mailmime_disposition_parm_parse(const char * message, size_t length,
+ size_t * index,
+ struct mailmime_disposition_parm **
+ result);
+
+static int
+mailmime_creation_date_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result);
+
+static int
+mailmime_filename_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result);
+
+static int
+mailmime_modification_date_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result);
+
+static int
+mailmime_read_date_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result);
+
+static int
+mailmime_size_parm_parse(const char * message, size_t length,
+ size_t * index, size_t * result);
+
+static int
+mailmime_quoted_date_time_parse(const char * message, size_t length,
+ size_t * index, char ** result);
+
+/*
+ disposition := "Content-Disposition" ":"
+ disposition-type
+ *(";" disposition-parm)
+
+*/
+
+
+int mailmime_disposition_parse(const char * message, size_t length,
+ size_t * index,
+ struct mailmime_disposition ** result)
+{
+ size_t final_token;
+ size_t cur_token;
+ struct mailmime_disposition_type * dsp_type;
+ clist * list;
+ struct mailmime_disposition * dsp;
+ int r;
+ int res;
+
+ cur_token = * index;
+
+ r = mailmime_disposition_type_parse(message, length, &cur_token,
+ &dsp_type);
+ if (r != MAILIMF_NO_ERROR) {
+ res = r;
+ goto err;
+ }
+
+ list = clist_new();
+ if (list == NULL) {
+ res = MAILIMF_ERROR_MEMORY;
+ goto free_type;
+ }
+
+ while (1) {
+ struct mailmime_disposition_parm * param;
+
+ final_token = cur_token;
+ r = mailimf_unstrict_char_parse(message, length, &cur_token, ';');
+ if (r == MAILIMF_NO_ERROR) {
+ /* do nothing */
+ }
+ else if (r == MAILIMF_ERROR_PARSE) {
+ break;
+ }
+ else {
+ res = r;
+ goto free_list;
+ }
+
+ r = mailmime_disposition_parm_parse(message, length, &cur_token, &param);
+ if (r == MAILIMF_NO_ERROR) {
+ /* do nothing */
+ }
+ else if (r == MAILIMF_ERROR_PARSE) {
+ cur_token = final_token;
+ break;
+ }
+ else {
+ res = r;
+ goto free_list;
+ }
+
+ r = clist_append(list, param);
+ if (r < 0) {
+ res = MAILIMF_ERROR_MEMORY;
+ goto free_list;
+ }
+ }
+
+ dsp = mailmime_disposition_new(dsp_type, list);
+ if (dsp == NULL) {
+ res = MAILIMF_ERROR_MEMORY;
+ goto free_list;
+ }
+
+ * result = dsp;
+ * index = cur_token;
+
+ return MAILIMF_NO_ERROR;
+
+ free_list:
+ clist_foreach(list, (clist_func) mailmime_disposition_parm_free, NULL);
+ clist_free(list);
+ free_type:
+ mailmime_disposition_type_free(dsp_type);
+ err:
+ return res;
+}
+
+/*
+ disposition-type := "inline"
+ / "attachment"
+ / extension-token
+ ; values are not case-sensitive
+
+*/
+
+
+
+int
+mailmime_disposition_type_parse(const char * message, size_t length,
+ size_t * index,
+ struct mailmime_disposition_type ** result)
+{
+ size_t cur_token;
+ int type;
+ char * extension;
+ struct mailmime_disposition_type * dsp_type;
+ int r;
+ int res;
+
+ cur_token = * index;
+
+ r = mailimf_cfws_parse(message, length, &cur_token);
+ if ((r != MAILIMF_NO_ERROR) && (r != MAILIMF_ERROR_PARSE)) {
+ res = r;
+ goto err;
+ }
+
+ type = MAILMIME_DISPOSITION_TYPE_ERROR; /* XXX - removes a gcc warning */
+
+ extension = NULL;
+ r = mailimf_token_case_insensitive_parse(message, length,
+ &cur_token, "inline");
+ if (r == MAILIMF_NO_ERROR)
+ type = MAILMIME_DISPOSITION_TYPE_INLINE;
+
+ if (r == MAILIMF_ERROR_PARSE) {
+ r = mailimf_token_case_insensitive_parse(message, length,
+ &cur_token, "attachment");
+ if (r == MAILIMF_NO_ERROR)
+ type = MAILMIME_DISPOSITION_TYPE_ATTACHMENT;
+ }
+
+ if (r == MAILIMF_ERROR_PARSE) {
+ r = mailmime_extension_token_parse(message, length, &cur_token,
+ &extension);
+ if (r == MAILIMF_NO_ERROR)
+ type = MAILMIME_DISPOSITION_TYPE_EXTENSION;
+ }
+
+ if (r != MAILIMF_NO_ERROR) {
+ res = r;
+ goto err;
+ }
+
+ dsp_type = mailmime_disposition_type_new(type, extension);
+ if (dsp_type == NULL) {
+ res = MAILIMF_ERROR_MEMORY;
+ goto free;
+ }
+
+ * result = dsp_type;
+ * index = cur_token;
+
+ return MAILIMF_NO_ERROR;
+
+ free:
+ if (extension != NULL)
+ free(extension);
+ err:
+ return res;
+}
+
+/*
+ disposition-parm := filename-parm
+ / creation-date-parm
+ / modification-date-parm
+ / read-date-parm
+ / size-parm
+ / parameter
+*/
+
+
+int mailmime_disposition_guess_type(const char * message, size_t length,
+ size_t index)
+{
+ if (index >= length)
+ return MAILMIME_DISPOSITION_PARM_PARAMETER;
+
+ switch ((char) toupper((unsigned char) message[index])) {
+ case 'F':
+ return MAILMIME_DISPOSITION_PARM_FILENAME;
+ case 'C':
+ return MAILMIME_DISPOSITION_PARM_CREATION_DATE;
+ case 'M':
+ return MAILMIME_DISPOSITION_PARM_MODIFICATION_DATE;
+ case 'R':
+ return MAILMIME_DISPOSITION_PARM_READ_DATE;
+ case 'S':
+ return MAILMIME_DISPOSITION_PARM_SIZE;
+ default:
+ return MAILMIME_DISPOSITION_PARM_PARAMETER;
+ }
+}
+
+static int
+mailmime_disposition_parm_parse(const char * message, size_t length,
+ size_t * index,
+ struct mailmime_disposition_parm **
+ result)
+{
+ char * filename;
+ char * creation_date;
+ char * modification_date;
+ char * read_date;
+ size_t size;
+ struct mailmime_parameter * parameter;
+ size_t cur_token;
+ struct mailmime_disposition_parm * dsp_parm;
+ int type;
+ int guessed_type;
+ int r;
+ int res;
+
+ cur_token = * index;
+
+ filename = NULL;
+ creation_date = NULL;
+ modification_date = NULL;
+ read_date = NULL;
+ size = 0;
+ parameter = NULL;
+
+ r = mailimf_cfws_parse(message, length, &cur_token);
+ if ((r != MAILIMF_NO_ERROR) && (r != MAILIMF_ERROR_PARSE)) {
+ res = r;
+ goto err;
+ }
+
+ guessed_type = mailmime_disposition_guess_type(message, length, cur_token);
+
+ type = MAILMIME_DISPOSITION_PARM_PARAMETER;
+
+ switch (guessed_type) {
+ case MAILMIME_DISPOSITION_PARM_FILENAME:
+ r = mailmime_filename_parm_parse(message, length, &cur_token,
+ &filename);
+ if (r == MAILIMF_NO_ERROR)
+ type = guessed_type;
+ else if (r == MAILIMF_ERROR_PARSE) {
+ /* do nothing */
+ }
+ else {
+ res = r;
+ goto err;
+ }
+ break;
+
+ case MAILMIME_DISPOSITION_PARM_CREATION_DATE:
+ r = mailmime_creation_date_parm_parse(message, length, &cur_token,
+ &creation_date);
+ if (r == MAILIMF_NO_ERROR)
+ type = guessed_type;
+ else if (r == MAILIMF_ERROR_PARSE) {
+ /* do nothing */
+ }
+ else {
+ res = r;
+ goto err;
+ }
+ break;
+
+ case MAILMIME_DISPOSITION_PARM_MODIFICATION_DATE:
+ r = mailmime_modification_date_parm_parse(message, length, &cur_token,
+ &modification_date);
+ if (r == MAILIMF_NO_ERROR)
+ type = guessed_type;
+ else if (r == MAILIMF_ERROR_PARSE) {
+ /* do nothing */
+ }
+ else {
+ res = r;
+ goto err;
+ }
+ break;
+
+ case MAILMIME_DISPOSITION_PARM_READ_DATE:
+ r = mailmime_read_date_parm_parse(message, length, &cur_token,
+ &read_date);
+ if (r == MAILIMF_NO_ERROR)
+ type = guessed_type;
+ else if (r == MAILIMF_ERROR_PARSE) {
+ /* do nothing */
+ }
+ else {
+ res = r;
+ goto err;
+ }
+ break;
+
+ case MAILMIME_DISPOSITION_PARM_SIZE:
+ r = mailmime_size_parm_parse(message, length, &cur_token,
+ &size);
+ if (r == MAILIMF_NO_ERROR)
+ type = guessed_type;
+ else if (r == MAILIMF_ERROR_PARSE) {
+ /* do nothing */
+ }
+ else {
+ res = r;
+ goto err;
+ }
+ break;
+ }
+
+ if (type == MAILMIME_DISPOSITION_PARM_PARAMETER) {
+ r = mailmime_parameter_parse(message, length, &cur_token,
+ &parameter);
+ if (r != MAILIMF_NO_ERROR) {
+ type = guessed_type;
+ res = r;
+ goto err;
+ }
+ }
+
+ dsp_parm = mailmime_disposition_parm_new(type, filename, creation_date,
+ modification_date, read_date,
+ size, parameter);
+
+ if (dsp_parm == NULL) {
+ res = MAILIMF_ERROR_MEMORY;
+ goto free;
+ }
+
+ * result = dsp_parm;
+ * index = cur_token;
+
+ return MAILIMF_NO_ERROR;
+
+ free:
+ if (filename != NULL)
+ mailmime_filename_parm_free(dsp_parm->pa_data.pa_filename);
+ if (creation_date != NULL)
+ mailmime_creation_date_parm_free(dsp_parm->pa_data.pa_creation_date);
+ if (modification_date != NULL)
+ mailmime_modification_date_parm_free(dsp_parm->pa_data.pa_modification_date);
+ if (read_date != NULL)
+ mailmime_read_date_parm_free(dsp_parm->pa_data.pa_read_date);
+ if (parameter != NULL)
+ mailmime_parameter_free(dsp_parm->pa_data.pa_parameter);
+ err:
+ return res;
+}
+
+/*
+ filename-parm := "filename" "=" value
+*/
+
+static int
+mailmime_filename_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result)
+{
+ char * value;
+ int r;
+ size_t cur_token;
+
+ cur_token = * index;
+
+ r = mailimf_token_case_insensitive_parse(message, length,
+ &cur_token, "filename");
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailimf_unstrict_char_parse(message, length, &cur_token, '=');
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailmime_value_parse(message, length, &cur_token, &value);
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ * index = cur_token;
+ * result = value;
+
+ return MAILIMF_NO_ERROR;
+}
+
+/*
+ creation-date-parm := "creation-date" "=" quoted-date-time
+*/
+
+static int
+mailmime_creation_date_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result)
+{
+ char * value;
+ int r;
+ size_t cur_token;
+
+ cur_token = * index;
+
+ r = mailimf_token_case_insensitive_parse(message, length,
+ &cur_token, "creation-date");
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailimf_unstrict_char_parse(message, length, &cur_token, '=');
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailmime_quoted_date_time_parse(message, length, &cur_token, &value);
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ * index = cur_token;
+ * result = value;
+
+ return MAILIMF_NO_ERROR;
+}
+
+/*
+ modification-date-parm := "modification-date" "=" quoted-date-time
+*/
+
+static int
+mailmime_modification_date_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result)
+{
+ char * value;
+ size_t cur_token;
+ int r;
+
+ cur_token = * index;
+
+ r = mailimf_token_case_insensitive_parse(message, length,
+ &cur_token, "modification-date");
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailimf_unstrict_char_parse(message, length, &cur_token, '=');
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailmime_quoted_date_time_parse(message, length, &cur_token, &value);
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ * index = cur_token;
+ * result = value;
+
+ return MAILIMF_NO_ERROR;
+}
+
+/*
+ read-date-parm := "read-date" "=" quoted-date-time
+*/
+
+static int
+mailmime_read_date_parm_parse(const char * message, size_t length,
+ size_t * index, char ** result)
+{
+ char * value;
+ size_t cur_token;
+ int r;
+
+ cur_token = * index;
+
+ r = mailimf_token_case_insensitive_parse(message, length,
+ &cur_token, "read-date");
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailimf_unstrict_char_parse(message, length, &cur_token, '=');
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailmime_quoted_date_time_parse(message, length, &cur_token, &value);
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ * index = cur_token;
+ * result = value;
+
+ return MAILIMF_NO_ERROR;
+}
+
+/*
+ size-parm := "size" "=" 1*DIGIT
+*/
+
+static int
+mailmime_size_parm_parse(const char * message, size_t length,
+ size_t * index, size_t * result)
+{
+ uint32_t value;
+ size_t cur_token;
+ int r;
+
+ cur_token = * index;
+
+ r = mailimf_token_case_insensitive_parse(message, length,
+ &cur_token, "size");
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailimf_unstrict_char_parse(message, length, &cur_token, '=');
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ r = mailimf_number_parse(message, length, &cur_token, &value);
+ if (r != MAILIMF_NO_ERROR)
+ return r;
+
+ * index = cur_token;
+ * result = value;
+
+ return MAILIMF_NO_ERROR;
+}
+
+/*
+ quoted-date-time := quoted-string
+ ; contents MUST be an RFC 822 `date-time'
+ ; numeric timezones (+HHMM or -HHMM) MUST be used
+*/
+
+static int
+mailmime_quoted_date_time_parse(const char * message, size_t length,
+ size_t * index, char ** result)
+{
+ return mailimf_quoted_string_parse(message, length, index, result);
+}