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/* $Id: rfc2047decode.C,v 1.3 2008/05/24 17:57:42 mrsam Exp $
**
** Copyright 2002-2008, Double Precision Inc.
**
** See COPYING for distribution information.
*/
#include "libmail_config.h"
#include "rfc2047decode.H"
#include "rfc822/rfc2047.h"
#include "mail.H"
#include <cstring>
using namespace std;
mail::rfc2047::decoder::decoder()
{
}
mail::rfc2047::decoder::~decoder()
{
}
int mail::rfc2047::decoder::rfc2047_decode_callback(const char *text,
int text_len,
const char *charset,
const char *language,
void *voidarg)
{
return ((mail::rfc2047::decoder *)voidarg)
->rfc2047_callback(text, text_len, charset, language);
}
int mail::rfc2047::decoder::rfc2047_callback(const char *text, int text_len,
const char *charset,
const char *language)
{
if (charset == NULL)
{
string s;
s.insert(s.end(), text, text+text_len);
unicode_char *u= (*unicode_ISO8859_1.c2u)(&unicode_ISO8859_1,
s.c_str(), NULL);
if (!u)
LIBMAIL_THROW("Out of memory.");
size_t n;
for (n=0; u[n]; n++)
;
try {
unicodes.insert(unicodes.end(), u, u+n);
free(u);
} catch (...) {
free(u);
LIBMAIL_THROW();
}
return (0);
}
const struct unicode_info *uc=unicode_find(charset);
if (strcasecmp(charset, nativeCharset->chset) == 0)
uc= nativeCharset;
if (strcasecmp(charset, nativeCharset->chset)
&& !(nativeCharset->flags & UNICODE_UTF))
// No need to insert [] for UTF charset
{
string s=string(" [") + charset + "]";
rfc2047_callback(&*s.begin(), s.size(), NULL, NULL);
// HACK - reuse code above.
}
if (uc == NULL)
uc= &unicode_ISO8859_1;
string s;
s.insert(s.end(), text, text+text_len);
unicode_char *u= (*uc->c2u)(uc, s.c_str(), NULL);
if (!u)
LIBMAIL_THROW("Out of memory.");
size_t n;
for (n=0; u[n]; n++)
;
try {
unicodes.insert(unicodes.end(), u, u+n);
free(u);
} catch (...) {
free(u);
LIBMAIL_THROW();
}
return (0);
}
const unicode_char *mail::rfc2047::decoder::decode(string text)
{
nativeCharset= &unicode_ISO8859_1;
unicodes.clear();
rfc2047_decode(text.c_str(),
&mail::rfc2047::decoder::rfc2047_decode_callback,
this);
unicodes.push_back(0);
return &*unicodes.begin();
}
string mail::rfc2047::decoder::decode(string text, string charset)
{
const struct unicode_info *uc=unicode_find(charset.c_str());
if (!uc)
uc=&unicode_ISO8859_1;
return decode(text, *uc);
}
string mail::rfc2047::decoder::decode(string text,
const struct unicode_info &uc)
{
nativeCharset=&uc;
unicodes.clear();
rfc2047_decode(text.c_str(),
&mail::rfc2047::decoder::rfc2047_decode_callback,
this);
unicodes.push_back(0);
string s;
char *p= (uc.u2c)(&uc, &*unicodes.begin(), NULL);
if (!p)
LIBMAIL_THROW("Out of memory.");
try {
s=p;
free(p);
} catch (...) {
free(p);
LIBMAIL_THROW();
}
return s;
}
void mail::rfc2047::decoder::decode(vector<mail::address> &addr_cpy,
const struct unicode_info &unicodeInfo)
{
vector<mail::address>::iterator b=addr_cpy.begin(), e=addr_cpy.end();
while (b != e)
{
b->setName(decode(b->getName(), unicodeInfo));
b++;
}
}
string mail::rfc2047::decoder::decodeSimple(string str)
{
char *p=rfc2047_decode_simple(str.c_str());
string s="";
if (p)
try {
s=p;
free(p);
} catch (...) {
free(p);
LIBMAIL_THROW();
}
return s;
}
string mail::rfc2047::decoder::decodeEnhanced(string str,
const struct unicode_info
&myCharset)
{
char *p=rfc2047_decode_unicode(str.c_str(), &myCharset,
RFC2047_DECODE_NOTAG);
string s="";
if (p)
try {
s=p;
free(p);
} catch (...) {
free(p);
LIBMAIL_THROW();
}
return s;
}
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