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libplist
Commits
31379321
Commit
31379321
authored
Dec 11, 2008
by
Jonathan Beck
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dissect plists in three file (abstract binary xml)
parent
18d1ee3b
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bplist.c
src/bplist.c
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xplist.c
src/xplist.c
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src/xplist.c
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31379321
/*
* plist.c
* XML plist implementation
*
* Copyright (c) 2008 Jonathan Beck All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include <assert.h>
#include "utils.h"
#include "plist.h"
#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
const
char
*
plist_base
=
"<?xml version=
\"
1.0
\"
encoding=
\"
UTF-8
\"
?>
\n
\
<!DOCTYPE plist PUBLIC
\"
-//Apple Computer//DTD PLIST 1.0//EN
\"
\"
http://www.apple.com/DTDs/PropertyList-1.0.dtd
\"
>
\n
\
<plist version=
\"
1.0
\"
>
\n
\
</plist>
\0
"
;
/** Formats a block of text to be a given indentation and width.
*
* The total width of the return string will be depth + cols.
*
* @param buf The string to format.
* @param cols The number of text columns for returned block of text.
* @param depth The number of tabs to indent the returned block of text.
*
* @return The formatted string.
*/
char
*
format_string
(
const
char
*
buf
,
int
cols
,
int
depth
)
{
int
colw
=
depth
+
cols
+
1
;
int
len
=
strlen
(
buf
);
int
nlines
=
len
/
cols
+
1
;
char
*
new_buf
=
(
char
*
)
malloc
(
nlines
*
colw
+
depth
+
1
);
int
i
=
0
;
int
j
=
0
;
assert
(
cols
>=
0
);
assert
(
depth
>=
0
);
// Inserts new lines and tabs at appropriate locations
for
(
i
=
0
;
i
<
nlines
;
i
++
)
{
new_buf
[
i
*
colw
]
=
'\n'
;
for
(
j
=
0
;
j
<
depth
;
j
++
)
new_buf
[
i
*
colw
+
1
+
j
]
=
'\t'
;
memcpy
(
new_buf
+
i
*
colw
+
1
+
depth
,
buf
+
i
*
cols
,
cols
);
}
new_buf
[
len
+
(
1
+
depth
)
*
nlines
]
=
'\n'
;
// Inserts final row of indentation and termination character
for
(
j
=
0
;
j
<
depth
;
j
++
)
new_buf
[
len
+
(
1
+
depth
)
*
nlines
+
1
+
j
]
=
'\t'
;
new_buf
[
len
+
(
1
+
depth
)
*
nlines
+
depth
+
1
]
=
'\0'
;
return
new_buf
;
}
struct
xml_node
{
xmlNodePtr
xml
;
uint32_t
depth
;
};
/** Creates a new plist XML document.
*
* @return The plist XML document.
*/
xmlDocPtr
new_plist
()
{
char
*
plist
=
strdup
(
plist_base
);
xmlDocPtr
plist_xml
=
xmlReadMemory
(
plist
,
strlen
(
plist
),
NULL
,
NULL
,
0
);
if
(
!
plist_xml
)
return
NULL
;
free
(
plist
);
return
plist_xml
;
}
/** Destroys a previously created XML document.
*
* @param plist The XML document to destroy.
*/
void
free_plist
(
xmlDocPtr
plist
)
{
if
(
!
plist
)
return
;
xmlFreeDoc
(
plist
);
}
void
node_to_xml
(
GNode
*
node
,
gpointer
xml_struct
)
{
if
(
!
node
)
return
;
struct
xml_node
*
xstruct
=
(
struct
xml_node
*
)
xml_struct
;
struct
plist_data
*
node_data
=
(
struct
plist_data
*
)
node
->
data
;
xmlNodePtr
child_node
=
NULL
;
char
isStruct
=
FALSE
;
gchar
*
tag
=
NULL
;
gchar
*
val
=
NULL
;
switch
(
node_data
->
type
)
{
case
PLIST_BOOLEAN
:
{
if
(
node_data
->
boolval
)
tag
=
"true"
;
else
tag
=
"false"
;
}
break
;
case
PLIST_UINT
:
tag
=
"integer"
;
val
=
g_strdup_printf
(
"%lu"
,
(
long
unsigned
int
)
node_data
->
intval
);
break
;
case
PLIST_REAL
:
tag
=
"real"
;
val
=
g_strdup_printf
(
"%Lf"
,
(
long
double
)
node_data
->
realval
);
break
;
case
PLIST_STRING
:
tag
=
"string"
;
val
=
g_strdup
(
node_data
->
strval
);
break
;
case
PLIST_UNICODE
:
tag
=
"string"
;
val
=
g_strdup
((
gchar
*
)
node_data
->
unicodeval
);
break
;
case
PLIST_KEY
:
tag
=
"key"
;
val
=
g_strdup
((
gchar
*
)
node_data
->
strval
);
break
;
case
PLIST_DATA
:
tag
=
"data"
;
val
=
format_string
(
node_data
->
buff
,
60
,
xstruct
->
depth
);
break
;
case
PLIST_ARRAY
:
tag
=
"array"
;
isStruct
=
TRUE
;
break
;
case
PLIST_DICT
:
tag
=
"dict"
;
isStruct
=
TRUE
;
break
;
case
PLIST_DATE
:
//TODO : handle date tag
default:
break
;
}
int
i
=
0
;
for
(
i
=
0
;
i
<
xstruct
->
depth
;
i
++
)
{
xmlNodeAddContent
(
xstruct
->
xml
,
"
\t
"
);
}
child_node
=
xmlNewChild
(
xstruct
->
xml
,
NULL
,
tag
,
val
);
xmlNodeAddContent
(
xstruct
->
xml
,
"
\n
"
);
g_free
(
val
);
//add return for structured types
if
(
node_data
->
type
==
PLIST_ARRAY
||
node_data
->
type
==
PLIST_DICT
||
node_data
->
type
==
PLIST_DATA
)
xmlNodeAddContent
(
child_node
,
"
\n
"
);
if
(
isStruct
)
{
struct
xml_node
child
=
{
child_node
,
xstruct
->
depth
+
1
};
g_node_children_foreach
(
node
,
G_TRAVERSE_ALL
,
node_to_xml
,
&
child
);
}
//fix indent for structured types
if
(
node_data
->
type
==
PLIST_ARRAY
||
node_data
->
type
==
PLIST_DICT
||
node_data
->
type
==
PLIST_DATA
)
{
for
(
i
=
0
;
i
<
xstruct
->
depth
;
i
++
)
{
xmlNodeAddContent
(
child_node
,
"
\t
"
);
}
}
return
;
}
void
xml_to_node
(
xmlNodePtr
xml_node
,
GNode
*
plist_node
)
{
xmlNodePtr
node
=
NULL
;
for
(
node
=
xml_node
->
children
;
node
;
node
=
node
->
next
)
{
while
(
node
&&
!
xmlStrcmp
(
node
->
name
,
"text"
))
node
=
node
->
next
;
if
(
!
node
)
break
;
struct
plist_data
*
data
=
(
struct
plist_data
*
)
calloc
(
sizeof
(
struct
plist_data
),
1
);
GNode
*
subnode
=
g_node_new
(
data
);
g_node_append
(
plist_node
,
subnode
);
if
(
!
xmlStrcmp
(
node
->
name
,
"true"
))
{
data
->
boolval
=
1
;
data
->
type
=
PLIST_BOOLEAN
;
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"false"
))
{
data
->
boolval
=
0
;
data
->
type
=
PLIST_BOOLEAN
;
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"integer"
))
{
char
*
strval
=
xmlNodeGetContent
(
node
);
data
->
intval
=
atoi
(
strval
);
data
->
type
=
PLIST_UINT
;
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"real"
))
{
char
*
strval
=
xmlNodeGetContent
(
node
);
data
->
realval
=
atof
(
strval
);
data
->
type
=
PLIST_REAL
;
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"date"
))
continue
;
//TODO : handle date tag
if
(
!
xmlStrcmp
(
node
->
name
,
"string"
))
{
data
->
strval
=
strdup
(
xmlNodeGetContent
(
node
));
data
->
type
=
PLIST_STRING
;
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"key"
))
{
data
->
strval
=
strdup
(
xmlNodeGetContent
(
node
));
data
->
type
=
PLIST_KEY
;
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"data"
))
{
data
->
buff
=
strdup
(
xmlNodeGetContent
(
node
));
data
->
type
=
PLIST_DATA
;
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"array"
))
{
data
->
type
=
PLIST_ARRAY
;
xml_to_node
(
node
,
subnode
);
continue
;
}
if
(
!
xmlStrcmp
(
node
->
name
,
"dict"
))
{
data
->
type
=
PLIST_DICT
;
xml_to_node
(
node
,
subnode
);
continue
;
}
}
}
void
plist_to_xml
(
plist_t
plist
,
char
**
plist_xml
,
uint32_t
*
length
)
{
if
(
!
plist
||
!
plist_xml
||
*
plist_xml
)
return
;
xmlDocPtr
plist_doc
=
new_plist
();
xmlNodePtr
root_node
=
xmlDocGetRootElement
(
plist_doc
);
struct
xml_node
root
=
{
root_node
,
0
};
g_node_children_foreach
(
plist
,
G_TRAVERSE_ALL
,
node_to_xml
,
&
root
);
xmlDocDumpMemory
(
plist_doc
,
(
xmlChar
**
)
plist_xml
,
length
);
}
void
xml_to_plist
(
const
char
*
plist_xml
,
uint32_t
length
,
plist_t
*
plist
)
{
xmlDocPtr
plist_doc
=
xmlReadMemory
(
plist_xml
,
length
,
NULL
,
NULL
,
0
);
xmlNodePtr
root_node
=
xmlDocGetRootElement
(
plist_doc
);
struct
plist_data
*
data
=
(
struct
plist_data
*
)
calloc
(
sizeof
(
struct
plist_data
),
1
);
*
plist
=
g_node_new
(
data
);
data
->
type
=
PLIST_DICT
;
xml_to_node
(
root_node
,
*
plist
);
}
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