mirror of
https://github.com/gnustep/libs-base.git
synced 2025-04-22 16:33:29 +00:00
Further parser improvements.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@8139 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald
parent
79c8d059a9
commit
44b2410ce5
4 changed files with 309 additions and 423 deletions
|
|
@ -32,6 +32,37 @@
|
|||
</desc>
|
||||
</method>
|
||||
|
||||
<method type="BOOL">
|
||||
<sel>decodeData:</sel>
|
||||
<arg type="NSData*">sourceData</arg>
|
||||
<sel>fromRange:</sel>
|
||||
<arg type="NSRange">aRange</arg>
|
||||
<sel>intoData:</sel>
|
||||
<arg type="NSMutableData*">destinationData</arg>
|
||||
<sel>withContext:</sel>
|
||||
<arg type="GSMimeEncodingContext*">ctxt</arg>
|
||||
<desc>
|
||||
<p>
|
||||
Decodes the raw data from the specified range in the source
|
||||
data object and appends it to the destination data object.
|
||||
The context object provides information about the content
|
||||
encoding type in use, and the state of the decoding operation.
|
||||
</p>
|
||||
<p>
|
||||
This method may be called repeatedly to incrementally decode
|
||||
information as it arrives on some communications channel.
|
||||
It should be called with a nil source data item (or with
|
||||
the atEnd flag of the context set to YES) in order to flush
|
||||
any information held in the context to the output data
|
||||
object.
|
||||
</p>
|
||||
<p>
|
||||
You may override this method in order to implement
|
||||
additional coding schemes.
|
||||
</p>
|
||||
</desc>
|
||||
</method>
|
||||
|
||||
<method type="GSMimeDocument*">
|
||||
<sel>document</sel>
|
||||
<desc>
|
||||
|
|
|
|||
|
|
@ -35,13 +35,14 @@
|
|||
<h2>Methods </h2>
|
||||
<ul>
|
||||
<li><a href ="GSMimeParser.html#method-0">+mimeParser</a>
|
||||
<li><a href ="GSMimeParser.html#method-1">-document</a>
|
||||
<li><a href ="GSMimeParser.html#method-2">-parse:</a>
|
||||
<li><a href ="GSMimeParser.html#method-3">-parseHeader:</a>
|
||||
<li><a href ="GSMimeParser.html#method-4">-parsingHeaders</a>
|
||||
<li><a href ="GSMimeParser.html#method-5">-scanHeader:named:inTo:</a>
|
||||
<li><a href ="GSMimeParser.html#method-6">-scanSpecial:</a>
|
||||
<li><a href ="GSMimeParser.html#method-7">-scanToken:</a>
|
||||
<li><a href ="GSMimeParser.html#method-1">-decodeData:fromRange:intoData:withContext:</a>
|
||||
<li><a href ="GSMimeParser.html#method-2">-document</a>
|
||||
<li><a href ="GSMimeParser.html#method-3">-parse:</a>
|
||||
<li><a href ="GSMimeParser.html#method-4">-parseHeader:</a>
|
||||
<li><a href ="GSMimeParser.html#method-5">-parsingHeaders</a>
|
||||
<li><a href ="GSMimeParser.html#method-6">-scanHeader:named:inTo:</a>
|
||||
<li><a href ="GSMimeParser.html#method-7">-scanSpecial:</a>
|
||||
<li><a href ="GSMimeParser.html#method-8">-scanToken:</a>
|
||||
</ul>
|
||||
<hr><h2>Class Methods </h2>
|
||||
<h3><a name ="method-0">mimeParser</a></h3>
|
||||
|
|
@ -51,13 +52,42 @@
|
|||
|
||||
<hr>
|
||||
<hr><h2>Instances Methods </h2>
|
||||
<h3><a name ="method-1">document</a></h3>
|
||||
<h3><a name ="method-1">decodeData:fromRange:intoData:withContext:</a></h3>
|
||||
- (BOOL) <b>decodeData:</b> (NSData*)sourceData <b>fromRange:</b> (NSRange)aRange <b>intoData:</b> (NSMutableData*)destinationData <b>withContext:</b> (GSMimeEncodingContext*)ctxt;<br>
|
||||
|
||||
<p>
|
||||
|
||||
Decodes the raw data from the specified range in the source
|
||||
data object and appends it to the destination data object.
|
||||
The context object provides information about the content
|
||||
encoding type in use, and the state of the decoding operation.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
|
||||
This method may be called repeatedly to incrementally decode
|
||||
information as it arrives on some communications channel.
|
||||
It should be called with a nil source data item (or with
|
||||
the atEnd flag of the context set to YES) in order to flush
|
||||
any information held in the context to the output data
|
||||
object.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
|
||||
You may override this method in order to implement
|
||||
additional coding schemes.
|
||||
</p>
|
||||
|
||||
|
||||
<hr>
|
||||
<h3><a name ="method-2">document</a></h3>
|
||||
- (GSMimeDocument*) <b>document</b>;<br>
|
||||
|
||||
Returns the object into which raw mime data is being parsed.
|
||||
|
||||
<hr>
|
||||
<h3><a name ="method-2">parse:</a></h3>
|
||||
<h3><a name ="method-3">parse:</a></h3>
|
||||
- (BOOL) <b>parse:</b> (NSData*)rawData;<br>
|
||||
|
||||
This method is called repeatedly to pass raw mime data into
|
||||
|
|
@ -66,7 +96,7 @@
|
|||
all the available information.
|
||||
|
||||
<hr>
|
||||
<h3><a name ="method-3">parseHeader:</a></h3>
|
||||
<h3><a name ="method-4">parseHeader:</a></h3>
|
||||
- (BOOL) <b>parseHeader:</b> (NSString*)aRawHeader;<br>
|
||||
|
||||
<p>
|
||||
|
|
@ -93,7 +123,7 @@
|
|||
|
||||
|
||||
<hr>
|
||||
<h3><a name ="method-4">parsingHeaders</a></h3>
|
||||
<h3><a name ="method-5">parsingHeaders</a></h3>
|
||||
- (BOOL) <b>parsingHeaders</b>;<br>
|
||||
|
||||
Returns YES if the parser is expecting to read mime headers,
|
||||
|
|
@ -102,7 +132,7 @@
|
|||
trhe mime message (or has been passed all data).
|
||||
|
||||
<hr>
|
||||
<h3><a name ="method-5">scanHeader:named:inTo:</a></h3>
|
||||
<h3><a name ="method-6">scanHeader:named:inTo:</a></h3>
|
||||
- (BOOL) <b>scanHeader:</b> (NSScanner*)aScanner <b>named:</b> (NSString*)aName <b>inTo:</b> (NSMutableDictionary*)info;<br>
|
||||
|
||||
<p>
|
||||
|
|
@ -133,7 +163,7 @@
|
|||
|
||||
|
||||
<hr>
|
||||
<h3><a name ="method-6">scanSpecial:</a></h3>
|
||||
<h3><a name ="method-7">scanSpecial:</a></h3>
|
||||
- (NSString*) <b>scanSpecial:</b> (NSScanner*)aScanner;<br>
|
||||
|
||||
A convenience method to use a scanner (that is set up to scan a
|
||||
|
|
@ -143,7 +173,7 @@
|
|||
will contain a single space character.
|
||||
|
||||
<hr>
|
||||
<h3><a name ="method-7">scanToken:</a></h3>
|
||||
<h3><a name ="method-8">scanToken:</a></h3>
|
||||
- (NSString*) <b>scanToken:</b> (NSScanner*)aScanner;<br>
|
||||
|
||||
A convenience method to use a scanner (that is set up to scan a
|
||||
|
|
|
|||
|
|
@ -39,6 +39,28 @@
|
|||
@class NSString;
|
||||
@class NSMutableString;
|
||||
|
||||
typedef enum {
|
||||
GSMimeEncodingBase64,
|
||||
GSMimeEncodingQuotedPrintable,
|
||||
GSMimeEncodingSevenBit,
|
||||
GSMimeEncodingEightBit,
|
||||
GSMimeEncodingBinary,
|
||||
GSMimeEncodingUnknown
|
||||
} GSMimeEncoding;
|
||||
|
||||
/*
|
||||
* A trivial class for mantaining state while decoding/encoding data.
|
||||
*/
|
||||
@interface GSMimeEncodingContext : NSObject
|
||||
{
|
||||
@public
|
||||
unsigned char buf[4];
|
||||
unsigned pos;
|
||||
BOOL atEnd;
|
||||
GSMimeEncoding type; /* The content encoding type to be used */
|
||||
}
|
||||
@end
|
||||
|
||||
@interface GSMimeDocument : NSObject
|
||||
{
|
||||
NSMutableArray *headers;
|
||||
|
|
@ -72,10 +94,15 @@
|
|||
NSData *boundary;
|
||||
GSMimeDocument *document;
|
||||
GSMimeParser *child;
|
||||
GSMimeEncodingContext *context;
|
||||
}
|
||||
|
||||
+ (GSMimeParser*) mimeParser;
|
||||
|
||||
- (BOOL) decodeData: (NSData*)sData
|
||||
fromRange: (NSRange)aRange
|
||||
intoData: (NSMutableData*)dData
|
||||
withContext: (GSMimeEncodingContext*)ctxt;
|
||||
- (GSMimeDocument*) document;
|
||||
- (BOOL) parse: (NSData*)input;
|
||||
- (BOOL) parseHeader: (NSString*)aRawHeader;
|
||||
|
|
|
|||
616
Source/GSMime.m
616
Source/GSMime.m
|
|
@ -30,6 +30,7 @@
|
|||
#include <Foundation/NSScanner.h>
|
||||
#include <Foundation/NSString.h>
|
||||
#include <Foundation/NSUserDefaults.h>
|
||||
#include <Foundation/NSException.h>
|
||||
#include <Foundation/GSMime.h>
|
||||
#include <string.h>
|
||||
|
||||
|
|
@ -188,6 +189,10 @@ parseCharacterSet(NSString *token)
|
|||
return NSASCIIStringEncoding;
|
||||
}
|
||||
|
||||
@implementation GSMimeEncodingContext
|
||||
@end
|
||||
|
||||
|
||||
@interface GSMimeParser (Private)
|
||||
- (BOOL) _decodeBody;
|
||||
- (NSString*) _decodeHeader;
|
||||
|
|
@ -205,11 +210,192 @@ parseCharacterSet(NSString *token)
|
|||
{
|
||||
RELEASE(data);
|
||||
RELEASE(child);
|
||||
RELEASE(context);
|
||||
RELEASE(boundary);
|
||||
RELEASE(document);
|
||||
[super dealloc];
|
||||
}
|
||||
|
||||
- (BOOL) decodeData: (NSData*)sData
|
||||
fromRange: (NSRange)aRange
|
||||
intoData: (NSMutableData*)dData
|
||||
withContext: (GSMimeEncodingContext*)ctxt
|
||||
{
|
||||
unsigned size = [dData length];
|
||||
unsigned len = [sData length];
|
||||
unsigned char *beg;
|
||||
unsigned char *dst;
|
||||
const char *src;
|
||||
const char *end;
|
||||
|
||||
if (dData == nil || ctxt == nil)
|
||||
{
|
||||
[NSException raise: NSInvalidArgumentException
|
||||
format: @"Bad data or context"];
|
||||
}
|
||||
GS_RANGE_CHECK(aRange, len);
|
||||
|
||||
/*
|
||||
* A nil data item as input represents end of data.
|
||||
*/
|
||||
if (sData == nil)
|
||||
{
|
||||
ctxt->atEnd = YES;
|
||||
}
|
||||
|
||||
/*
|
||||
* Get pointers into source data buffer.
|
||||
*/
|
||||
src = (const char *)[sData bytes];
|
||||
src += aRange.location;
|
||||
end = src + aRange.length;
|
||||
|
||||
switch (ctxt->type)
|
||||
{
|
||||
case GSMimeEncodingBase64:
|
||||
/*
|
||||
* Expand destination data buffer to have capacity to handle info.
|
||||
*/
|
||||
[dData setLength: size + (3 * (end + 8 - src))/4];
|
||||
dst = (unsigned char*)[dData mutableBytes];
|
||||
beg = dst;
|
||||
|
||||
/*
|
||||
* Now decode data into buffer, keeping count and temporary
|
||||
* data in context.
|
||||
*/
|
||||
while (src < end)
|
||||
{
|
||||
int cc = *src++;
|
||||
|
||||
if (isupper(cc))
|
||||
{
|
||||
cc -= 'A';
|
||||
}
|
||||
else if (islower(cc))
|
||||
{
|
||||
cc = cc - 'a' + 26;
|
||||
}
|
||||
else if (isdigit(cc))
|
||||
{
|
||||
cc = cc - '0' + 52;
|
||||
}
|
||||
else if (cc == '+')
|
||||
{
|
||||
cc = 62;
|
||||
}
|
||||
else if (cc == '/')
|
||||
{
|
||||
cc = 63;
|
||||
}
|
||||
else if (cc == '=')
|
||||
{
|
||||
ctxt->atEnd = YES;
|
||||
cc = -1;
|
||||
}
|
||||
else if (cc == '-')
|
||||
{
|
||||
ctxt->atEnd = YES;
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
cc = -1; /* ignore */
|
||||
}
|
||||
|
||||
if (cc >= 0)
|
||||
{
|
||||
ctxt->buf[ctxt->pos++] = cc;
|
||||
if (ctxt->pos == 4)
|
||||
{
|
||||
ctxt->pos = 0;
|
||||
decodebase64(dst, ctxt->buf);
|
||||
dst += 3;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Odd characters at end of decoded data need to be added separately.
|
||||
*/
|
||||
if (ctxt->atEnd == YES && ctxt->pos > 0)
|
||||
{
|
||||
unsigned len = ctxt->pos - 1;;
|
||||
|
||||
while (ctxt->pos < 4)
|
||||
{
|
||||
ctxt->buf[ctxt->pos++] = '\0';
|
||||
}
|
||||
ctxt->pos = 0;
|
||||
decodebase64(dst, ctxt->buf);
|
||||
size += len;
|
||||
}
|
||||
[dData setLength: dst - beg];
|
||||
break;
|
||||
|
||||
case GSMimeEncodingQuotedPrintable:
|
||||
/*
|
||||
* Expand destination data buffer to have capacity to handle info.
|
||||
*/
|
||||
[dData setLength: size + (end - src)];
|
||||
dst = (unsigned char*)[dData mutableBytes];
|
||||
beg = dst;
|
||||
|
||||
while (src < end)
|
||||
{
|
||||
if (ctxt->pos > 0)
|
||||
{
|
||||
if ((*src == '\n') || (*src == '\r'))
|
||||
{
|
||||
ctxt->pos = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
ctxt->buf[ctxt->pos++] = '=';
|
||||
if (ctxt->pos == 3)
|
||||
{
|
||||
int c;
|
||||
int val;
|
||||
|
||||
ctxt->pos = 0;
|
||||
c = ctxt->buf[1];
|
||||
val = isdigit(c) ? (c - '0') : (c - 55);
|
||||
val *= 0x10;
|
||||
c = ctxt->buf[2];
|
||||
val += isdigit(c) ? (c - '0') : (c - 55);
|
||||
*dst++ = val;
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (*src == '=')
|
||||
{
|
||||
ctxt->buf[ctxt->pos++] = '=';
|
||||
}
|
||||
else
|
||||
{
|
||||
*dst++ = *src;
|
||||
}
|
||||
src++;
|
||||
}
|
||||
[dData setLength: dst - beg];
|
||||
break;
|
||||
|
||||
default:
|
||||
NSLog(@"Content encoding %d not known - assume binary", ctxt->type);
|
||||
case GSMimeEncodingBinary:
|
||||
case GSMimeEncodingSevenBit:
|
||||
case GSMimeEncodingEightBit:
|
||||
[dData setLength: size + (end - src)];
|
||||
dst = (unsigned char*)[dData mutableBytes];
|
||||
memcpy(&dst[size], src, (end - src));
|
||||
size += (end - src);
|
||||
[dData setLength: size];
|
||||
break;
|
||||
}
|
||||
|
||||
return YES;
|
||||
}
|
||||
|
||||
- (NSString*) description
|
||||
{
|
||||
NSMutableString *desc;
|
||||
|
|
@ -231,6 +417,7 @@ parseCharacterSet(NSString *token)
|
|||
{
|
||||
data = [[NSMutableData alloc] init];
|
||||
document = [[GSMimeDocument alloc] init];
|
||||
context = [[GSMimeEncodingContext alloc] init];
|
||||
}
|
||||
return self;
|
||||
}
|
||||
|
|
@ -389,26 +576,32 @@ parseCharacterSet(NSString *token)
|
|||
}
|
||||
if ([value isEqualToString: @"quoted-printable"] == YES)
|
||||
{
|
||||
context->type = GSMimeEncodingQuotedPrintable;
|
||||
supported = YES;
|
||||
}
|
||||
else if ([value isEqualToString: @"base64"] == YES)
|
||||
{
|
||||
context->type = GSMimeEncodingBase64;
|
||||
supported = YES;
|
||||
}
|
||||
else if ([value isEqualToString: @"binary"] == YES)
|
||||
{
|
||||
context->type = GSMimeEncodingBinary;
|
||||
supported = YES;
|
||||
}
|
||||
else if ([value characterAtIndex: 0] == '7')
|
||||
{
|
||||
context->type = GSMimeEncodingSevenBit;
|
||||
supported = YES;
|
||||
}
|
||||
else if ([value characterAtIndex: 0] == '8')
|
||||
{
|
||||
context->type = GSMimeEncodingEightBit;
|
||||
supported = YES;
|
||||
}
|
||||
if (supported == NO)
|
||||
{
|
||||
context->type = GSMimeEncodingBinary;
|
||||
NSLog(@"Unsupported/unknown content-transfer-encoding");
|
||||
return NO;
|
||||
}
|
||||
|
|
@ -941,144 +1134,20 @@ parseCharacterSet(NSString *token)
|
|||
}
|
||||
else
|
||||
{
|
||||
NSDictionary *encInfo;
|
||||
NSString *value;
|
||||
NSData *decoded;
|
||||
unsigned length = [data length];
|
||||
NSMutableData *decoded = [NSMutableData dataWithCapacity: length];
|
||||
|
||||
encInfo = [document headerNamed: @"content-transfer-encoding"];
|
||||
value = [encInfo objectForKey: @"Value"];
|
||||
|
||||
if ([value isEqualToString: @"quoted-printable"] == YES)
|
||||
[self decodeData: data
|
||||
fromRange: NSMakeRange(0, length)
|
||||
intoData: decoded
|
||||
withContext: context];
|
||||
if (context->pos != 0)
|
||||
{
|
||||
int cc;
|
||||
const char *src;
|
||||
const char *end;
|
||||
unsigned char *dst;
|
||||
unsigned char *beg;
|
||||
|
||||
src = (const char*)bytes;
|
||||
end = src + dataEnd;
|
||||
beg = NSZoneMalloc(NSDefaultMallocZone(), dataEnd);
|
||||
dst = beg;
|
||||
|
||||
while (src < end)
|
||||
{
|
||||
if (*src == '=')
|
||||
{
|
||||
src++;
|
||||
if (src == end)
|
||||
{
|
||||
break;
|
||||
}
|
||||
if ((*src == '\n') || (*src == '\r'))
|
||||
{
|
||||
break;
|
||||
}
|
||||
cc = isdigit(*src) ? (*src - '0') : (*src - 55);
|
||||
cc *= 0x10;
|
||||
src++;
|
||||
if (src == end)
|
||||
{
|
||||
break;
|
||||
}
|
||||
cc += isdigit(*src) ? (*src - '0') : (*src - 55);
|
||||
*dst = cc;
|
||||
}
|
||||
else
|
||||
{
|
||||
*dst = *src;
|
||||
}
|
||||
dst++;
|
||||
src++;
|
||||
}
|
||||
decoded = [NSData dataWithBytesNoCopy: beg length: dst - beg];
|
||||
}
|
||||
else if ([value isEqualToString: @"base64"] == YES)
|
||||
{
|
||||
int cc;
|
||||
const char *src;
|
||||
const char *end;
|
||||
unsigned char *dst;
|
||||
unsigned char *beg;
|
||||
char buf[4];
|
||||
int pos = 0;
|
||||
|
||||
src = (const char*)bytes;
|
||||
end = src + dataEnd;
|
||||
beg = NSZoneMalloc(NSDefaultMallocZone(), dataEnd);
|
||||
dst = beg;
|
||||
|
||||
while (src < end)
|
||||
{
|
||||
cc = *src++;
|
||||
if (isupper(cc))
|
||||
{
|
||||
cc -= 'A';
|
||||
}
|
||||
else if (islower(cc))
|
||||
{
|
||||
cc = cc - 'a' + 26;
|
||||
}
|
||||
else if (isdigit(cc))
|
||||
{
|
||||
cc = cc - '0' + 52;
|
||||
}
|
||||
else if (cc == '/')
|
||||
{
|
||||
cc = 63;
|
||||
}
|
||||
else if (cc == '+')
|
||||
{
|
||||
cc = 62;
|
||||
}
|
||||
else if (cc == '=')
|
||||
{
|
||||
cc = -1;
|
||||
}
|
||||
else if (cc == '\r')
|
||||
{
|
||||
cc = -1;
|
||||
}
|
||||
else if (cc == '\n')
|
||||
{
|
||||
cc = -1;
|
||||
}
|
||||
else if (cc == '-')
|
||||
{
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
cc = -1; /* ignore */
|
||||
}
|
||||
|
||||
if (cc >= 0)
|
||||
{
|
||||
buf[pos++] = cc;
|
||||
if (pos == 4)
|
||||
{
|
||||
decodebase64(dst, buf);
|
||||
pos = 0;
|
||||
dst += 3;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (cc = pos; cc < 4; cc++)
|
||||
{
|
||||
buf[cc] = '\0';
|
||||
}
|
||||
if (pos > 0)
|
||||
{
|
||||
pos--;
|
||||
}
|
||||
decodebase64(dst, buf);
|
||||
dst += pos;
|
||||
decoded = [NSData dataWithBytesNoCopy: beg length: dst - beg];
|
||||
}
|
||||
else /* Assume no encoding used */
|
||||
{
|
||||
decoded = data;
|
||||
context->atEnd = YES;
|
||||
[self decodeData: nil
|
||||
fromRange: NSMakeRange(0, 0)
|
||||
intoData: decoded
|
||||
withContext: context];
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -1283,6 +1352,7 @@ parseCharacterSet(NSString *token)
|
|||
}
|
||||
dataEnd = lengthRemaining;
|
||||
[data setLength: lengthRemaining];
|
||||
bytes = (unsigned char*)[data mutableBytes];
|
||||
sectionStart = 0;
|
||||
lineStart = 0;
|
||||
lineEnd = 0;
|
||||
|
|
@ -1296,279 +1366,7 @@ parseCharacterSet(NSString *token)
|
|||
|
||||
@end
|
||||
|
||||
|
||||
|
||||
#if 0
|
||||
/*
|
||||
* Name decodebuf()
|
||||
* Purpose - Decode a line.
|
||||
*/
|
||||
static void
|
||||
decodebuf(mstate* ptr, unsigned char *src, int enc, int *junkp, int* len)
|
||||
{
|
||||
int cc;
|
||||
int show;
|
||||
unsigned char *ss;
|
||||
unsigned char *dest = src;
|
||||
|
||||
if (enc == CE_QUOTEDP)
|
||||
{
|
||||
*len = 0;
|
||||
while (*src)
|
||||
{
|
||||
if (*src == '=')
|
||||
{
|
||||
src++;
|
||||
if (*src == 0)
|
||||
{
|
||||
break;
|
||||
}
|
||||
if ((*src == '\n') || (*src == '\r'))
|
||||
{
|
||||
break;
|
||||
}
|
||||
cc = isdigit(*src) ? (*src - '0') : (*src - 55);
|
||||
cc *= 0x10;
|
||||
src++;
|
||||
if (*src == 0)
|
||||
{
|
||||
break;
|
||||
}
|
||||
cc += isdigit(*src) ? (*src - '0') : (*src - 55);
|
||||
*dest = cc;
|
||||
}
|
||||
else
|
||||
{
|
||||
*dest = *src;
|
||||
}
|
||||
dest++;
|
||||
src++;
|
||||
(*len)++;
|
||||
}
|
||||
*dest = '\0';
|
||||
}
|
||||
else if (enc == CE_BASE064)
|
||||
{
|
||||
*len = 0;
|
||||
if (ptr->EndP)
|
||||
{
|
||||
*junkp = 1;
|
||||
return;
|
||||
}
|
||||
ptr->BPos = 0;
|
||||
while (*src)
|
||||
{
|
||||
cc = *src++;
|
||||
if (isupper(cc))
|
||||
{
|
||||
cc -= 'A';
|
||||
}
|
||||
else if (islower(cc))
|
||||
{
|
||||
cc = cc - 'a' + 26;
|
||||
}
|
||||
else if (isdigit(cc))
|
||||
{
|
||||
cc = cc - '0' + 52;
|
||||
}
|
||||
else if (cc == '/')
|
||||
{
|
||||
cc = 63;
|
||||
}
|
||||
else if (cc == '+')
|
||||
{
|
||||
cc = 62;
|
||||
}
|
||||
else if (cc == '=')
|
||||
{
|
||||
ptr->EndP = 1;
|
||||
cc = -1;
|
||||
}
|
||||
else if (cc == '-')
|
||||
{
|
||||
*junkp = 1; /* junk? */
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
cc = -1; /* ignore */
|
||||
}
|
||||
|
||||
if (cc >= 0)
|
||||
{
|
||||
ptr->BBuf[ptr->BPos++] = cc;
|
||||
if (ptr->BPos == 4)
|
||||
{
|
||||
ss = decodebase64(dest, ptr->BBuf);
|
||||
ptr->BPos = 0;
|
||||
dest += 3;
|
||||
*len += 3;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
show = ptr->BPos;
|
||||
if (show)
|
||||
{
|
||||
show--;
|
||||
}
|
||||
decodebase64(dest, ptr);
|
||||
ptr->BPos = 0;
|
||||
dest += show;
|
||||
*len += show;
|
||||
*dest = '\0';
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Name - donehead()
|
||||
* Purpose - Do all sort of processing at the end of header.
|
||||
*/
|
||||
static void
|
||||
donehead(mstate* ptr)
|
||||
{
|
||||
int ctypemask;
|
||||
|
||||
if (ptr->rfc822) {
|
||||
parsehead(ptr);
|
||||
}
|
||||
ptr->InHeadP = 0;
|
||||
if (ptr->MimeVers < 0) { /* NOT MIME */
|
||||
if (ptr->ContType != CT_UNKNOWN) { /* RFC1049 */
|
||||
ptr->MimeVers = MV_R1049;
|
||||
} else { /* no head */
|
||||
/* ptr->MimeVers = MV_R0822; default */
|
||||
ptr->ContType = CT_ASCTEXT;
|
||||
ptr->CSubType = ST_PLAINTX;
|
||||
/* ptr->Encoding = CE_UNCODED; default */
|
||||
/* ptr->Charset = NSISOLatin1StringEncoding; default */
|
||||
}
|
||||
}
|
||||
ptr->TempEncd = ptr->Encoding;
|
||||
|
||||
if ((ptr->Charset == GSUndefinedEncoding)
|
||||
&& ((ptr->ContType != CT_ASCTEXT) || (ptr->CSubType != ST_PLAINTX))) {
|
||||
foldinit(ptr, GSUndefinedEncoding, GSUndefinedEncoding);
|
||||
ptr->FoldChP = 0;
|
||||
} else {
|
||||
foldinit(ptr, ptr->Charset, CS_IGNOR);
|
||||
}
|
||||
|
||||
if ((ptr->ActMask & AC_APPLCTN) && (ptr->nameParameter)) {
|
||||
ptr->AttFile = fopen(ptr->nameParameter, "wb");
|
||||
}
|
||||
|
||||
ctypemask = 0; /* default */
|
||||
switch (ptr->ContType) {
|
||||
case CT_ASCTEXT: ctypemask = AC_ASCTEXT; break;
|
||||
case CT_MULTIPT: ctypemask = AC_MULTIPT; break;
|
||||
case CT_MESSAGE: ctypemask = AC_MESSAGE; break;
|
||||
case CT_APPLCTN: ctypemask = AC_APPLCTN; break;
|
||||
} /* switch */
|
||||
ptr->DecodeP = ctypemask & ptr->ActMask;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Name - unmimeline()
|
||||
* Params - (mstate*)ptr, (unsigned char*)buf, (int*)len
|
||||
* Purpose - Process a line of input.
|
||||
*
|
||||
* buf = buffer containing line, also used to return decoded buffer.
|
||||
* len = length of data in buffer on entry and return.
|
||||
* Ret: 0: nothing special
|
||||
* 1: line is null line separating header from body
|
||||
* 2: found junk trailing BASE64 encoding
|
||||
* 3: dumping attachement to named file
|
||||
* 4: line is multipart boundary
|
||||
* 5: line is a header line
|
||||
* Des: The mimelite library doesn't really handle RFC-1049 content types, but
|
||||
* it assumes that somthing _with_ a content-type header, but _without_ a
|
||||
* mime-version header must be RFC-1049 and sets MimeVers accordingly.
|
||||
* The rest is up to you.
|
||||
*/
|
||||
int unmimeline(mstate* ptr, unsigned char *buf, int *len)
|
||||
{
|
||||
int junkp = 0;
|
||||
|
||||
buf[*len] = '\0'; /* Ensure nul termination. */
|
||||
/*
|
||||
* If we are in a multipart section and haven't started the header,
|
||||
* we check to see if the header is actually missing.
|
||||
*/
|
||||
if (ptr->InHeadP == 2) {
|
||||
ptr->InHeadP = 1;
|
||||
if (strchr((char*)buf, ':') == 0) {
|
||||
donehead(ptr);
|
||||
}
|
||||
}
|
||||
|
||||
if (!ptr->InHeadP) {
|
||||
if (ptr->DecodeP) {
|
||||
if (ptr->DecodeP == AC_MULTIPT) {
|
||||
if (strncmp((const char*)buf, ptr->Boundary, ptr->BLength)==0 &&
|
||||
(buf[ptr->BLength] == '\0' || buf[ptr->BLength] == '-' ||
|
||||
isspace(buf[ptr->BLength]))) {
|
||||
/*
|
||||
* At a boundary, we release any old subsidiary parser.
|
||||
*/
|
||||
DESTROY(child);
|
||||
/*
|
||||
* If we are not on the final boundary, we create a
|
||||
* subsidiary parser to handle everything in this part.
|
||||
*/
|
||||
if (buf[ptr->BLength] != '-') {
|
||||
child = [GSMimeParser new];
|
||||
[child setHeader: 2]; /* May be no header. */
|
||||
[child setMimeVersion: [self mimeVersion]];
|
||||
}
|
||||
return(4);
|
||||
}
|
||||
else if (child != nil) {
|
||||
/*
|
||||
* Parsing a multipart document, let the subsidiary
|
||||
* parser handle the current part.
|
||||
*/
|
||||
return [child unmimeline: buf length: len];
|
||||
}
|
||||
}
|
||||
else {
|
||||
decodebuf(ptr, buf, ptr->TempEncd, &junkp, len);
|
||||
}
|
||||
}
|
||||
if (ptr->FoldChP) {
|
||||
foldbuff(ptr, buf, *len);
|
||||
}
|
||||
if (ptr->AttFile) {
|
||||
fwrite(buf, *len, 1, ptr->AttFile);
|
||||
return(3);
|
||||
}
|
||||
if (junkp) {
|
||||
ptr->TempEncd = CE_UNCODED;
|
||||
return(2);
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
||||
if (eohp(buf)) { /* end of head */
|
||||
donehead(ptr);
|
||||
return(1);
|
||||
}
|
||||
|
||||
*len = decodhead(ptr, buf);
|
||||
foldbuff(ptr, buf, *len);
|
||||
junkp = fold_rfc822(ptr, (char*)buf);
|
||||
if (junkp != 0) { /* Bad header. */
|
||||
donehead(ptr);
|
||||
return(-1);
|
||||
}
|
||||
return(5);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
|
||||
@implementation GSMimeDocument
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue