/
mms_codec.c
2329 lines (1934 loc) · 54.1 KB
/
mms_codec.c
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/*
*
* Multimedia Messaging Service
*
* Copyright (C) 2010-2011 Intel Corporation. All rights reserved.
* Copyright (C) 2013-2014 Jolla Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <ctype.h>
#include <string.h>
#include <time.h>
#ifdef _WIN32
# define ssize_t int
# define write _write
# include <io.h>
# define uninitialized_var(x) x
#else
# include <unistd.h>
# define uninitialized_var(x) x = x
#endif
#include <glib.h>
#include "wsputil.h"
#include "mms_codec.h"
/* Logging */
#define MMS_LOG_MODULE_NAME mms_codec_log
#include "mms_lib_log.h"
MMS_LOG_MODULE_DEFINE("mms-codec");
#define MAX_ENC_VALUE_BYTES 6
#ifdef TEMP_FAILURE_RETRY
#define TFR TEMP_FAILURE_RETRY
#else
#define TFR
#endif
#define QUOTE (127)
enum mms_message_value_bool {
MMS_MESSAGE_VALUE_BOOL_YES = 128,
MMS_MESSAGE_VALUE_BOOL_NO = 129,
};
enum header_flag {
HEADER_FLAG_MANDATORY = 1,
HEADER_FLAG_ALLOW_MULTI = 2,
HEADER_FLAG_PRESET_POS = 4,
HEADER_FLAG_MARKED = 8,
};
enum mms_header {
MMS_HEADER_BCC = 0x01,
MMS_HEADER_CC = 0x02,
MMS_HEADER_CONTENT_LOCATION = 0x03,
MMS_HEADER_CONTENT_TYPE = 0x04,
MMS_HEADER_DATE = 0x05,
MMS_HEADER_DELIVERY_REPORT = 0x06,
MMS_HEADER_DELIVERY_TIME = 0x07,
MMS_HEADER_EXPIRY = 0x08,
MMS_HEADER_FROM = 0x09,
MMS_HEADER_MESSAGE_CLASS = 0x0a,
MMS_HEADER_MESSAGE_ID = 0x0b,
MMS_HEADER_MESSAGE_TYPE = 0x0c,
MMS_HEADER_MMS_VERSION = 0x0d,
MMS_HEADER_MESSAGE_SIZE = 0x0e,
MMS_HEADER_PRIORITY = 0x0f,
MMS_HEADER_READ_REPORT = 0x10,
MMS_HEADER_REPORT_ALLOWED = 0x11,
MMS_HEADER_RESPONSE_STATUS = 0x12,
MMS_HEADER_RESPONSE_TEXT = 0x13,
MMS_HEADER_SENDER_VISIBILITY = 0x14,
MMS_HEADER_STATUS = 0x15,
MMS_HEADER_SUBJECT = 0x16,
MMS_HEADER_TO = 0x17,
MMS_HEADER_TRANSACTION_ID = 0x18,
MMS_HEADER_RETRIEVE_STATUS = 0x19,
MMS_HEADER_RETRIEVE_TEXT = 0x1a,
MMS_HEADER_READ_STATUS = 0x1b,
__MMS_HEADER_MAX = 0x1c,
MMS_HEADER_INVALID = 0x80,
};
enum mms_part_header {
MMS_PART_HEADER_CONTENT_LOCATION = 0x0e,
MMS_PART_HEADER_CONTENT_DISPOSITION = 0x2e,
MMS_PART_HEADER_CONTENT_ID = 0x40,
};
/*
* Reference: IANA http://www.iana.org/assignments/character-sets
*/
static const struct {
unsigned int mib_enum;
const char *charset;
} charset_assignments[] = {
{ 3, "US-ASCII" },
{ 4, "ISO_8859-1" },
{ 5, "ISO_8859-2" },
{ 6, "ISO_8859-3" },
{ 7, "ISO_8859-4" },
{ 8, "ISO_8859-5" },
{ 9, "ISO_8859-6" },
{ 10, "ISO_8859-7" },
{ 11, "ISO_8859-8" },
{ 12, "ISO_8859-9" },
{ 13, "ISO-8859-10" },
{ 17, "Shift_JIS" },
{ 18, "EUC-JP" },
{ 36, "KS_C_5601-1987" },
{ 37, "ISO-2022-KR" },
{ 38, "EUC-KR" },
{ 39, "ISO-2022-JP" },
{ 40, "ISO-2022-JP-2" },
{ 81, "ISO_8859-6-E" },
{ 82, "ISO_8859-6-I" },
{ 84, "ISO_8859-8-E" },
{ 85, "ISO_8859-8-I" },
{ 106, "UTF-8" },
{ 109, "ISO-8859-13" },
{ 110, "ISO-8859-14" },
{ 111, "ISO-8859-15" },
{ 112, "ISO-8859-16" },
{ 113, "GBK" },
{ 114, "GB18030" },
{ 1000, "ISO-10646-UCS-2" },
{ 1001, "ISO-10646-UCS-4" },
{ 1004, "ISO-10646-J-1" },
{ 1012, "UTF-7" },
{ 1013, "UTF-16BE" },
{ 1014, "UTF-16LE" },
{ 1015, "UTF-16" },
{ 1017, "UTF-32" },
{ 1018, "UTF-32BE" },
{ 1019, "UTF-32LE" },
{ 2025, "GB2312" },
{ 2026, "Big5" },
{ 2027, "macintosh" },
{ 2084, "KOI8-R" },
{ 2109, "windows-874" },
{ 2250, "windows-1250" },
{ 2251, "windows-1251" },
{ 2252, "windows-1252" },
{ 2253, "windows-1253" },
{ 2254, "windows-1254" },
{ 2255, "windows-1255" },
{ 2256, "windows-1256" },
{ 2257, "windows-1257" },
{ 2258, "windows-1258" }
};
#define FB_SIZE 256
struct file_buffer {
unsigned char buf[FB_SIZE];
unsigned int size;
unsigned int fsize;
int fd;
};
typedef gboolean (*header_handler)(struct wsp_header_iter *, void *);
typedef gboolean (*header_encoder)(struct file_buffer *, enum mms_header,
void *);
/*
* mms_parse_http_content_type() parses HTTP media type as defined
* in section 3.7 "Media Types" of the HTTP/1.1 specification. The
* grammar is defined as follows:
*
* media-type = type "/" subtype *( ";" parameter )
* type = token
* subtype = token
* parameter = attribute "=" value
* attribute = token
* value = token | quoted-string
* token = 1*<any CHAR except CTLs or separators>
* quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
* qdtext = <any TEXT except <">>
* quoted-pair = "\" CHAR
*
* Returns the NULL terminated array of strings which consists of the
* type/subtype part followed by attribute + value pairs. For example,
* this string:
*
* "text/html; charset=ISO-8859-4"
*
* would be parsed into the followring:
*
* "text/html"
* "charset"
* "ISO-8859-4"
* NULL
*
* The caller is responsible for deallocating the returned string
* with g_strfreev
*/
/*
* token = 1*<any CHAR except CTLs or separators>
* CHAR = <any US-ASCII character (octets 0 - 127)>
* CTL = <any US-ASCII control character
* (octets 0 - 31) and DEL (127)>
* separators = "(" | ")" | "<" | ">" | "@"
* | "," | ";" | ":" | "\" | <">
* | "/" | "[" | "]" | "?" | "="
* | "{" | "}" | SP | HT
*/
static const char http_token[] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x00 - 0x0f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x10 - 0x1f */
0,1,0,1,1,1,1,1,0,0,1,1,0,1,1,0, /* !"#$%&'()*+,-./ */
1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0, /* 0123456789:;<=>? */
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* @ABCDEFGHIJKLMNO */
1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1, /* PQRSTUVWXYZ[\]^_ */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* `abcdefghijklmno */
1,1,1,1,1,1,1,1,1,1,1,0,1,0,1,0, /* pqrstuvwxyz{|}~ */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0x80 - 0xFF */
};
/*
* quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
* quoted-pair = "\" CHAR
* qdtext = <any TEXT except <">>
* TEXT = <any OCTET except CTLs,
* but including LWS>
* CTL = <any US-ASCII control character
* (octets 0 - 31) and DEL (127)>
*/
static const char http_qdtext[] = {
0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0, /* 0x00 - 0x0f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x10 - 0x1f */
1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1, /* !"#$%&'()*+,-./ */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 0123456789:;<=>? */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* @ABCDEFGHIJKLMNO */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* PQRSTUVWXYZ[\]^_ */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* `abcdefghijklmno */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0, /* pqrstuvwxyz{|}~ */
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 /* 0x80 - 0xFF */
};
static const char http_space[] = {
0,0,0,0,0,0,0,0,0,1,1,0,0,1,0,0, /* 0x00 - 0x0f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x10 - 0x1f */
1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* !"#$%&'()*+,-./ */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0123456789:;<=>? */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* @ABCDEFGHIJKLMNO */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* PQRSTUVWXYZ[\]^_ */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* `abcdefghijklmno */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* pqrstuvwxyz{|}~ */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* 0x80 - 0xFF */
};
static const unsigned char *mms_parse_skip_spaces(const unsigned char *ptr)
{
while (http_space[*ptr]) ptr++;
return ptr;
}
static gboolean mms_is_http_token(const unsigned char *ptr)
{
if (ptr && *ptr) {
while (*ptr) {
if (!http_token[*ptr++]) {
return FALSE;
}
}
return TRUE;
}
return FALSE;
}
static const unsigned char *mms_parse_http_token(const unsigned char *ptr,
GString *token)
{
int len = 0;
ptr = mms_parse_skip_spaces(ptr);
while (http_token[*ptr]) {
g_string_append_c(token, *ptr);
ptr++;
len++;
}
return len > 0 ? mms_parse_skip_spaces(ptr) : NULL;
}
static const unsigned char *mms_parse_quoted_string(const unsigned char *ptr,
GString *value)
{
ptr = mms_parse_skip_spaces(ptr);
if (*ptr == '"') {
ptr++;
while (*ptr == '\\' || http_qdtext[*ptr]) {
if (*ptr == '\\') {
ptr++;
if (*ptr) g_string_append_c(value, *ptr++);
} else {
g_string_append_c(value, *ptr++);
}
}
if (*ptr == '"') {
return mms_parse_skip_spaces(ptr+1);
}
}
return NULL;
}
static void mms_parse_collect_value(GPtrArray *output, GString *value)
{
g_ptr_array_add(output, g_strdup(value->str));
g_string_truncate(value, 0);
}
static gboolean mms_parse_parameters(const unsigned char *ptr,
GString *token, GPtrArray *output)
{
g_string_truncate(token, 0);
ptr = mms_parse_skip_spaces(ptr);
while (ptr && *ptr == ';') {
if ((ptr = mms_parse_http_token(ptr+1, token)) != NULL) {
if (*ptr == '=') {
mms_parse_collect_value(output, token);
ptr = mms_parse_skip_spaces(ptr+1);
ptr = (*ptr == '"') ?
mms_parse_quoted_string(ptr, token) :
mms_parse_http_token(ptr, token);
if (ptr) {
mms_parse_collect_value(output, token);
}
} else {
return FALSE; /* Missing = */
}
}
}
return ptr && !*ptr;
}
static const unsigned char *mms_parse_type(const unsigned char *ptr,
GString *token)
{
ptr = mms_parse_http_token(ptr, token);
if (ptr && *ptr == '/') {
g_string_append_c(token, *ptr++);
return mms_parse_http_token(ptr, token);
}
return NULL;
}
char **mms_parse_http_content_type(const char *str)
{
gboolean ok = FALSE;
GPtrArray *output = NULL;
GString *tmp = g_string_new(NULL);
const unsigned char *ptr = mms_parse_type((unsigned char*)str, tmp);
if (ptr) {
output = g_ptr_array_new();
mms_parse_collect_value(output, tmp);
ok = mms_parse_parameters(ptr, tmp, output);
}
g_string_free(tmp, TRUE);
if (ok) {
g_ptr_array_add(output, NULL);
return (char**)g_ptr_array_free(output, FALSE);
}
if (output) {
g_ptr_array_set_free_func(output, g_free);
g_ptr_array_free(output, TRUE);
}
return NULL;
}
char *mms_unparse_http_content_type(char **ct)
{
if (ct && ct[0]) {
int i;
GString *str = g_string_new(ct[0]);
for (i = 1; ct[i]; i += 2) {
const char *val = ct[i+1];
g_string_append(str, "; ");
g_string_append(str, ct[i]);
g_string_append_c(str, '=');
if (mms_is_http_token((unsigned char*)val)) {
g_string_append(str, val);
} else {
g_string_append_c(str, '"');
while (*val) {
const unsigned char uval = *val;
if (!http_qdtext[uval]) {
g_string_append_c(str, '\\');
}
g_string_append_c(str, *val++);
}
g_string_append_c(str, '"');
}
}
return g_string_free(str, FALSE);
}
return NULL;
}
static const char *charset_index2string(unsigned int index)
{
int low = 0;
int high = G_N_ELEMENTS(charset_assignments) - 1;
while (low <= high) {
const int mid = (low + high)/2;
const unsigned int val = charset_assignments[mid].mib_enum;
if (val < index) {
low = mid + 1;
} else if (val > index) {
high = mid - 1;
} else {
return charset_assignments[mid].charset;
}
}
return NULL;
}
static gboolean extract_short(struct wsp_header_iter *iter, void *user)
{
unsigned char *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
*out = p[0];
return TRUE;
}
static const char *decode_text(struct wsp_header_iter *iter)
{
const unsigned char *p;
unsigned int l;
if (wsp_header_iter_get_val_type(iter) == WSP_VALUE_TYPE_LONG) {
if (iter->len == 0) /* The only way to encode an empty string */
return (char*)(iter->pdu + iter->pos - 1);
return NULL;
}
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_TEXT)
return NULL;
p = wsp_header_iter_get_val(iter);
l = wsp_header_iter_get_val_len(iter);
return wsp_decode_text(p, l, NULL);
}
static gboolean extract_text(struct wsp_header_iter *iter, void *user)
{
char **out = user;
const char *text;
text = decode_text(iter);
if (text == NULL)
return FALSE;
*out = g_strdup(text);
return TRUE;
}
static char *decode_encoded_string_with_mib_enum(const unsigned char *p,
unsigned int l)
{
unsigned int mib_enum;
unsigned int consumed;
const char *text;
const char *from_codeset;
const char *to_codeset = "UTF-8";
gsize bytes_read;
gsize bytes_written;
if (wsp_decode_integer(p, l, &mib_enum, &consumed) == FALSE)
return NULL;
if (mib_enum == 106) {
/* header is UTF-8 already */
text = wsp_decode_text(p + consumed, l - consumed, NULL);
return g_strdup(text);
}
/* convert to UTF-8 */
from_codeset = charset_index2string(mib_enum);
if (from_codeset == NULL)
return NULL;
return g_convert((const char *) p + consumed, l - consumed,
to_codeset, from_codeset,
&bytes_read, &bytes_written, NULL);
}
static char* decode_encoded_text(enum wsp_value_type t,
const unsigned char *p, unsigned int l)
{
switch (t) {
case WSP_VALUE_TYPE_TEXT:
/* Text-string */
return g_strdup(wsp_decode_text(p, l, NULL));
case WSP_VALUE_TYPE_LONG:
/* (Value-len) Char-set Text-string */
return decode_encoded_string_with_mib_enum(p, l);
default:
return NULL;
}
}
static gboolean extract_encoded_text(struct wsp_header_iter *iter, void *user)
{
char **out = user;
char *dec_text = decode_encoded_text(
wsp_header_iter_get_val_type(iter),
wsp_header_iter_get_val(iter),
wsp_header_iter_get_val_len(iter));
if (dec_text == NULL)
return FALSE;
*out = dec_text;
return TRUE;
}
static gboolean extract_encoded_text_element(struct wsp_header_iter *iter,
void *user)
{
char **out = user;
char *element;
char *tmp;
if (!extract_encoded_text(iter, &element))
return FALSE;
if (*out == NULL) {
*out = element;
return TRUE;
}
tmp = g_strjoin(",", *out, element, NULL);
if (tmp == NULL) {
g_free(element);
return FALSE;
}
g_free(*out);
g_free(element);
*out = tmp;
return TRUE;
}
static gboolean extract_subject(struct wsp_header_iter *iter, void *user)
{
/* Ignore incorrectly encoded subjects */
extract_encoded_text(iter, user);
return TRUE;
}
static gboolean extract_date(struct wsp_header_iter *iter, void *user)
{
time_t *out = user;
const unsigned char *p;
unsigned int l;
unsigned int i;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_LONG)
return FALSE;
p = wsp_header_iter_get_val(iter);
l = wsp_header_iter_get_val_len(iter);
if (l > 4)
return FALSE;
for (i = 0, *out = 0; i < l; i++)
*out = *out << 8 | p[i];
/* It is possible to overflow time_t on 32 bit systems */
*out = *out & 0x7fffffff;
return TRUE;
}
static gboolean extract_absolute_relative_date(struct wsp_header_iter *iter,
void *user)
{
time_t *out = user;
const unsigned char *p;
unsigned int l;
unsigned int i;
unsigned int seconds;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_LONG)
return FALSE;
p = wsp_header_iter_get_val(iter);
l = wsp_header_iter_get_val_len(iter);
if (l < 2 || l > 5)
return FALSE;
if (p[0] != 128 && p[0] != 129)
return FALSE;
for (i = 2, seconds = 0; i < l; i++)
seconds = seconds << 8 | p[i];
if (p[0] == 129) {
*out = time(NULL);
*out += seconds;
} else
*out = seconds;
/* It is possible to overflow time_t on 32 bit systems */
*out = *out & 0x7fffffff;
return TRUE;
}
static gboolean extract_boolean(struct wsp_header_iter *iter, void *user)
{
gboolean *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
if (p[0] == MMS_MESSAGE_VALUE_BOOL_YES) {
*out = TRUE;
return TRUE;
} else if (p[0] == MMS_MESSAGE_VALUE_BOOL_NO) {
*out = FALSE;
return TRUE;
} else {
return TRUE;
}
}
static gboolean extract_from(struct wsp_header_iter *iter, void *user)
{
char **out = user;
const unsigned char *p;
unsigned int l;
enum wsp_value_type t;
char *text;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_LONG)
return FALSE;
p = wsp_header_iter_get_val(iter);
l = wsp_header_iter_get_val_len(iter);
if (p[0] != 128 && p[0] != 129)
return FALSE;
if (p[0] == 129) {
*out = NULL;
return TRUE;
}
if (!wsp_decode_field(p + 1, l - 1, &t, (const void **)&p, &l, NULL))
return FALSE;
text = decode_encoded_text(t, p, l);
if (text == NULL)
return FALSE;
*out = text;
return TRUE;
}
static gboolean extract_message_class(struct wsp_header_iter *iter, void *user)
{
char **out = user;
const unsigned char *p;
unsigned int l;
const char *text;
if (wsp_header_iter_get_val_type(iter) == WSP_VALUE_TYPE_LONG)
return FALSE;
p = wsp_header_iter_get_val(iter);
if (wsp_header_iter_get_val_type(iter) == WSP_VALUE_TYPE_SHORT) {
switch (p[0]) {
case 128:
*out = g_strdup(MMS_MESSAGE_CLASS_PERSONAL);
return TRUE;
case 129:
*out = g_strdup(MMS_MESSAGE_CLASS_ADVERTISEMENT);
return TRUE;
case 130:
*out = g_strdup(MMS_MESSAGE_CLASS_INFORMATIONAL);
return TRUE;
case 131:
*out = g_strdup(MMS_MESSAGE_CLASS_AUTO);
return TRUE;
default:
return FALSE;
}
}
l = wsp_header_iter_get_val_len(iter);
text = wsp_decode_token_text(p, l, NULL);
if (text == NULL)
return FALSE;
*out = g_strdup(text);
return TRUE;
}
static gboolean extract_sender_visibility(struct wsp_header_iter *iter,
void *user)
{
enum mms_message_sender_visibility *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
if (p[0] != 128 && p[0] != 129)
return FALSE;
*out = p[0];
return TRUE;
}
static gboolean extract_priority(struct wsp_header_iter *iter, void *user)
{
enum mms_message_priority *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
switch (p[0]) {
case MMS_MESSAGE_PRIORITY_LOW:
case MMS_MESSAGE_PRIORITY_NORMAL:
case MMS_MESSAGE_PRIORITY_HIGH:
*out = p[0];
return TRUE;
}
return FALSE;
}
static gboolean extract_rsp_status(struct wsp_header_iter *iter, void *user)
{
unsigned char *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
switch (p[0]) {
case MMS_MESSAGE_RSP_STATUS_OK:
case MMS_MESSAGE_RSP_STATUS_ERR_UNSUPPORTED_MESSAGE:
case MMS_MESSAGE_RSP_STATUS_ERR_TRANS_FAILURE:
case MMS_MESSAGE_RSP_STATUS_ERR_TRANS_NETWORK_PROBLEM:
case MMS_MESSAGE_RSP_STATUS_ERR_PERM_FAILURE:
case MMS_MESSAGE_RSP_STATUS_ERR_PERM_SERVICE_DENIED:
case MMS_MESSAGE_RSP_STATUS_ERR_PERM_MESSAGE_FORMAT_CORRUPT:
case MMS_MESSAGE_RSP_STATUS_ERR_PERM_SENDING_ADDRESS_UNRESOLVED:
case MMS_MESSAGE_RSP_STATUS_ERR_PERM_CONTENT_NOT_ACCEPTED:
case MMS_MESSAGE_RSP_STATUS_ERR_PERM_LACK_OF_PREPAID:
*out = p[0];
return TRUE;
}
return FALSE;
}
static gboolean extract_status(struct wsp_header_iter *iter, void *user)
{
enum mms_message_delivery_status *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
switch (p[0]) {
case MMS_MESSAGE_DELIVERY_STATUS_EXPIRED:
case MMS_MESSAGE_DELIVERY_STATUS_RETRIEVED:
case MMS_MESSAGE_DELIVERY_STATUS_REJECTED:
case MMS_MESSAGE_DELIVERY_STATUS_DEFERRED:
case MMS_MESSAGE_DELIVERY_STATUS_UNRECOGNISED:
case MMS_MESSAGE_DELIVERY_STATUS_INDETERMINATE:
case MMS_MESSAGE_DELIVERY_STATUS_FORWARDED:
case MMS_MESSAGE_DELIVERY_STATUS_UNREACHABLE:
*out = p[0];
return TRUE;
}
return FALSE;
}
static gboolean extract_retrieve_status(struct wsp_header_iter *iter,
void *user)
{
unsigned char *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
/* Accept known codes, ignore unknown ones */
switch (p[0]) {
case MMS_MESSAGE_RETRIEVE_STATUS_OK:
case MMS_MESSAGE_RETRIEVE_STATUS_ERR_TRANS_FAILURE:
case MMS_MESSAGE_RETRIEVE_STATUS_ERR_TRANS_MESSAGE_NOT_FOUND:
case MMS_MESSAGE_RETRIEVE_STATUS_ERR_TRANS_NETWORK_PROBLEM:
case MMS_MESSAGE_RETRIEVE_STATUS_ERR_PERM_FAILURE:
case MMS_MESSAGE_RETRIEVE_STATUS_ERR_PERM_SERVICE_DENIED:
case MMS_MESSAGE_RETRIEVE_STATUS_ERR_PERM_MESSAGE_NOT_FOUND:
case MMS_MESSAGE_RETRIEVE_STATUS_ERR_PERM_CONTENT_UNSUPPORTED:
*out = p[0];
break;
}
return TRUE;
}
static gboolean extract_read_status(struct wsp_header_iter *iter, void *user)
{
enum mms_message_read_status *out = user;
const unsigned char *p;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_SHORT)
return FALSE;
p = wsp_header_iter_get_val(iter);
switch (p[0]) {
case MMS_MESSAGE_READ_STATUS_READ:
case MMS_MESSAGE_READ_STATUS_DELETED:
*out = p[0];
return TRUE;
}
return FALSE;
}
static gboolean extract_unsigned(struct wsp_header_iter *iter, void *user)
{
unsigned long *out = user;
const unsigned char *p;
unsigned int l;
unsigned int i;
if (wsp_header_iter_get_val_type(iter) != WSP_VALUE_TYPE_LONG)
return FALSE;
p = wsp_header_iter_get_val(iter);
l = wsp_header_iter_get_val_len(iter);
if (l > sizeof(unsigned long))
return FALSE;
for (i = 0, *out = 0; i < l; i++)
*out = *out << 8 | p[i];
return TRUE;
}
static header_handler handler_for_type(enum mms_header header)
{
switch (header) {
case MMS_HEADER_BCC:
return &extract_encoded_text_element;
case MMS_HEADER_CC:
return &extract_encoded_text_element;
case MMS_HEADER_CONTENT_LOCATION:
return &extract_text;
case MMS_HEADER_CONTENT_TYPE:
return &extract_text;
case MMS_HEADER_DATE:
return &extract_date;
case MMS_HEADER_DELIVERY_REPORT:
return &extract_boolean;
case MMS_HEADER_DELIVERY_TIME:
return &extract_absolute_relative_date;
case MMS_HEADER_EXPIRY:
return &extract_absolute_relative_date;
case MMS_HEADER_FROM:
return &extract_from;
case MMS_HEADER_MESSAGE_CLASS:
return &extract_message_class;
case MMS_HEADER_MESSAGE_ID:
return &extract_text;
case MMS_HEADER_MESSAGE_TYPE:
return &extract_short;
case MMS_HEADER_MMS_VERSION:
return &extract_short;
case MMS_HEADER_MESSAGE_SIZE:
return &extract_unsigned;
case MMS_HEADER_PRIORITY:
return &extract_priority;
case MMS_HEADER_READ_REPORT:
return &extract_boolean;
case MMS_HEADER_REPORT_ALLOWED:
return &extract_boolean;
case MMS_HEADER_RESPONSE_STATUS:
return &extract_rsp_status;
case MMS_HEADER_RESPONSE_TEXT:
return &extract_encoded_text;
case MMS_HEADER_SENDER_VISIBILITY:
return &extract_sender_visibility;
case MMS_HEADER_STATUS:
return &extract_status;
case MMS_HEADER_SUBJECT:
return &extract_subject;
case MMS_HEADER_TO:
return &extract_encoded_text_element;
case MMS_HEADER_TRANSACTION_ID:
return &extract_text;
case MMS_HEADER_RETRIEVE_STATUS:
return &extract_retrieve_status;
case MMS_HEADER_RETRIEVE_TEXT:
return &extract_encoded_text;
case MMS_HEADER_READ_STATUS:
return &extract_read_status;
case MMS_HEADER_INVALID:
case __MMS_HEADER_MAX:
return NULL;
}
return NULL;
}
struct header_handler_entry {
int flags;
void *data;
int pos;
};