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wine/dlls/webservices/url.c
Hans Leidekker 338f1458d8 webservices: Build without -DWINE_NO_LONG_TYPES. 
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2022-02-15 16:34:16 +01:00

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/*
* Copyright 2016 Hans Leidekker for CodeWeavers
*
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdlib.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winuser.h"
#include "webservices.h"
#include "wine/debug.h"
#include "wine/list.h"
#include "webservices_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(webservices);
static WS_URL_SCHEME_TYPE scheme_type( const WCHAR *str, ULONG len )
{
if (len == ARRAY_SIZE( L"http" ) - 1 && !wcsnicmp( str, L"http", ARRAY_SIZE( L"http" ) - 1 ))
return WS_URL_HTTP_SCHEME_TYPE;
if (len == ARRAY_SIZE( L"https" ) - 1 && !wcsnicmp( str, L"https", ARRAY_SIZE( L"https" ) - 1 ))
return WS_URL_HTTPS_SCHEME_TYPE;
if (len == ARRAY_SIZE( L"net.tcp" ) - 1 && !wcsnicmp( str, L"net.tcp", ARRAY_SIZE( L"net.tcp" ) - 1 ))
return WS_URL_NETTCP_SCHEME_TYPE;
if (len == ARRAY_SIZE( L"soap.udp" ) - 1 && !wcsnicmp( str, L"soap.udp", ARRAY_SIZE( L"soap.udp" ) - 1 ))
return WS_URL_SOAPUDP_SCHEME_TYPE;
if (len == ARRAY_SIZE( L"net.pipe" ) - 1 && !wcsnicmp( str, L"net.pipe", ARRAY_SIZE( L"net.pipe" ) - 1 ))
return WS_URL_NETPIPE_SCHEME_TYPE;
return ~0u;
}
static USHORT default_port( WS_URL_SCHEME_TYPE scheme )
{
switch (scheme)
{
case WS_URL_HTTP_SCHEME_TYPE: return 80;
case WS_URL_HTTPS_SCHEME_TYPE: return 443;
case WS_URL_NETTCP_SCHEME_TYPE: return 808;
case WS_URL_SOAPUDP_SCHEME_TYPE:
case WS_URL_NETPIPE_SCHEME_TYPE: return 65535;
default:
ERR( "unhandled scheme %u\n", scheme );
return 0;
}
}
static unsigned char *strdup_utf8( const WCHAR *str, ULONG len, ULONG *ret_len )
{
unsigned char *ret;
*ret_len = WideCharToMultiByte( CP_UTF8, 0, str, len, NULL, 0, NULL, NULL );
if ((ret = malloc( *ret_len )))
WideCharToMultiByte( CP_UTF8, 0, str, len, (char *)ret, *ret_len, NULL, NULL );
return ret;
}
static inline int url_decode_byte( char c1, char c2 )
{
int ret;
if (c1 >= '0' && c1 <= '9') ret = (c1 - '0') * 16;
else if (c1 >= 'a' && c1 <= 'f') ret = (c1 - 'a' + 10) * 16;
else if (c1 >= 'A' && c1 <= 'F') ret = (c1 - 'A' + 10) * 16;
else return -1;
if (c2 >= '0' && c2 <= '9') ret += c2 - '0';
else if (c2 >= 'a' && c2 <= 'f') ret += c2 - 'a' + 10;
else if (c2 >= 'A' && c2 <= 'F') ret += c2 - 'A' + 10;
else return -1;
return ret;
}
static WCHAR *url_decode( WCHAR *str, ULONG len, WS_HEAP *heap, ULONG *ret_len )
{
WCHAR *p = str, *q, *ret;
BOOL decode = FALSE, convert = FALSE;
ULONG i, len_utf8, len_left;
unsigned char *utf8, *r;
int b;
*ret_len = len;
for (i = 0; i < len; i++, p++)
{
if ((len - i) < 3) break;
if (p[0] == '%' && (b = url_decode_byte( p[1], p[2] )) != -1)
{
decode = TRUE;
if (b > 159)
{
convert = TRUE;
break;
}
*ret_len -= 2;
}
}
if (!decode) return str;
if (!convert)
{
if (!(q = ret = ws_alloc( heap, *ret_len * sizeof(WCHAR) ))) return NULL;
p = str;
while (len)
{
if (len >= 3 && p[0] == '%' && (b = url_decode_byte( p[1], p[2] )) != -1)
{
*q++ = b;
p += 3;
len -= 3;
}
else
{
*q++ = *p++;
len -= 1;
}
}
return ret;
}
if (!(r = utf8 = strdup_utf8( str, len, &len_utf8 ))) return NULL;
len_left = len_utf8;
while (len_left)
{
if (len_left >= 3 && r[0] == '%' && (b = url_decode_byte( r[1], r[2] )) != -1)
{
r[0] = b;
len_left -= 3;
memmove( r + 1, r + 3, len_left );
len_utf8 -= 2;
}
else len_left -= 1;
r++;
}
if (!(*ret_len = MultiByteToWideChar( CP_UTF8, MB_ERR_INVALID_CHARS, (char *)utf8,
len_utf8, NULL, 0 )))
{
WARN( "invalid UTF-8 sequence\n" );
free( utf8 );
return NULL;
}
if ((ret = ws_alloc( heap, *ret_len * sizeof(WCHAR) )))
MultiByteToWideChar( CP_UTF8, 0, (char *)utf8, len_utf8, ret, *ret_len );
free( utf8 );
return ret;
}
/**************************************************************************
* WsDecodeUrl [webservices.@]
*/
HRESULT WINAPI WsDecodeUrl( const WS_STRING *str, ULONG flags, WS_HEAP *heap, WS_URL **ret, WS_ERROR *error )
{
HRESULT hr = WS_E_QUOTA_EXCEEDED;
WCHAR *p, *q, *decoded = NULL;
WS_HTTP_URL *url = NULL;
ULONG len, len_decoded, port = 0;
TRACE( "%s %#lx %p %p %p\n", str ? debugstr_wn(str->chars, str->length) : "null", flags, heap, ret, error );
if (error) FIXME( "ignoring error parameter\n" );
if (!str || !heap) return E_INVALIDARG;
if (!str->length) return WS_E_INVALID_FORMAT;
if (flags)
{
FIXME( "unimplemented flags %#lx\n", flags );
return E_NOTIMPL;
}
if (!(decoded = url_decode( str->chars, str->length, heap, &len_decoded )) ||
!(url = ws_alloc( heap, sizeof(*url) ))) goto done;
hr = WS_E_INVALID_FORMAT;
p = q = decoded;
len = len_decoded;
while (len && *q != ':') { q++; len--; };
if (*q != ':') goto done;
if ((url->url.scheme = scheme_type( p, q - p )) == ~0u) goto done;
if (!--len || *++q != '/') goto done;
if (!--len || *++q != '/') goto done;
p = ++q; len--;
if (*q == '[')
{
while (len && *q != ']') { q++; len--; };
if (*q++ != ']') goto done;
}
else
{
while (len && *q != '/' && *q != ':' && *q != '?' && *q != '#') { q++; len--; };
}
if (q == p) goto done;
url->host.length = q - p;
url->host.chars = p;
if (len && *q == ':')
{
p = ++q; len--;
while (len && '0' <= *q && *q <= '9')
{
if ((port = port * 10 + *q - '0') > 65535) goto done;
q++; len--;
};
url->port = port;
url->portAsString.length = q - p;
url->portAsString.chars = p;
}
if (!port)
{
url->port = default_port( url->url.scheme );
url->portAsString.length = 0;
url->portAsString.chars = NULL;
}
if (len && *q == '/')
{
p = q;
while (len && *q != '?') { q++; len--; };
url->path.length = q - p;
url->path.chars = p;
}
else url->path.length = 0;
if (len && *q == '?')
{
p = ++q; len--;
while (len && *q != '#') { q++; len--; };
url->query.length = q - p;
url->query.chars = p;
}
else url->query.length = 0;
if (len && *q == '#')
{
p = ++q; len--;
while (len && *q != '#') { q++; len--; };
url->fragment.length = q - p;
url->fragment.chars = p;
}
else url->fragment.length = 0;
*ret = (WS_URL *)url;
hr = S_OK;
done:
if (hr != S_OK)
{
if (decoded != str->chars) ws_free( heap, decoded, len_decoded );
ws_free( heap, url, sizeof(*url) );
}
TRACE( "returning %#lx\n", hr );
return hr;
}
static const WCHAR *scheme_str( WS_URL_SCHEME_TYPE scheme, ULONG *len )
{
switch (scheme)
{
case WS_URL_HTTP_SCHEME_TYPE:
*len = ARRAY_SIZE( L"http" ) - 1;
return L"http";
case WS_URL_HTTPS_SCHEME_TYPE:
*len = ARRAY_SIZE( L"https" ) - 1;
return L"https";
case WS_URL_NETTCP_SCHEME_TYPE:
*len = ARRAY_SIZE( L"net.tcp" ) - 1;
return L"net.tcp";
case WS_URL_SOAPUDP_SCHEME_TYPE:
*len = ARRAY_SIZE( L"soap.udp" ) - 1;
return L"soap.udp";
case WS_URL_NETPIPE_SCHEME_TYPE:
*len = ARRAY_SIZE( L"net.pipe" ) - 1;
return L"net.pipe";
default:
ERR( "unhandled scheme %u\n", scheme );
return NULL;
}
}
static inline ULONG escape_size( unsigned char ch, const char *except )
{
const char *p = except;
while (*p)
{
if (*p == ch) return 1;
p++;
}
if ((ch >= 'a' && ch <= 'z' ) || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9')) return 1;
if (ch < 33 || ch > 126) return 3;
switch (ch)
{
case '/':
case '?':
case '"':
case '#':
case '%':
case '<':
case '>':
case '\\':
case '[':
case ']':
case '^':
case '`':
case '{':
case '|':
case '}':
return 3;
default:
return 1;
}
}
static HRESULT url_encode_size( const WCHAR *str, ULONG len, const char *except, ULONG *ret_len )
{
ULONG i, len_utf8;
BOOL convert = FALSE;
unsigned char *utf8;
*ret_len = 0;
for (i = 0; i < len; i++)
{
if (str[i] > 159)
{
convert = TRUE;
break;
}
*ret_len += escape_size( str[i], except );
}
if (!convert) return S_OK;
*ret_len = 0;
if (!(utf8 = strdup_utf8( str, len, &len_utf8 ))) return E_OUTOFMEMORY;
for (i = 0; i < len_utf8; i++) *ret_len += escape_size( utf8[i], except );
free( utf8 );
return S_OK;
}
static ULONG url_encode_byte( unsigned char byte, const char *except, WCHAR *buf )
{
static const WCHAR hex[] = L"0123456789ABCDEF";
switch (escape_size( byte, except ))
{
case 3:
buf[0] = '%';
buf[1] = hex[(byte >> 4) & 0xf];
buf[2] = hex[byte & 0xf];
return 3;
case 1:
buf[0] = byte;
return 1;
default:
ERR( "unhandled escape size\n" );
return 0;
}
}
static HRESULT url_encode( const WCHAR *str, ULONG len, WCHAR *buf, const char *except, ULONG *ret_len )
{
HRESULT hr = S_OK;
ULONG i, len_utf8, len_enc;
BOOL convert = FALSE;
WCHAR *p = buf;
unsigned char *utf8;
*ret_len = 0;
for (i = 0; i < len; i++)
{
if (str[i] > 159)
{
convert = TRUE;
break;
}
len_enc = url_encode_byte( str[i], except, p );
*ret_len += len_enc;
p += len_enc;
}
if (!convert) return S_OK;
p = buf;
*ret_len = 0;
if (!(utf8 = strdup_utf8( str, len, &len_utf8 ))) return E_OUTOFMEMORY;
for (i = 0; i < len_utf8; i++)
{
len_enc = url_encode_byte( utf8[i], except, p );
*ret_len += len_enc;
p += len_enc;
}
free( utf8 );
return hr;
}
/**************************************************************************
* WsEncodeUrl [webservices.@]
*/
HRESULT WINAPI WsEncodeUrl( const WS_URL *base, ULONG flags, WS_HEAP *heap, WS_STRING *ret,
WS_ERROR *error )
{
ULONG len = 0, len_scheme, len_enc, ret_size = 0;
const WS_HTTP_URL *url = (const WS_HTTP_URL *)base;
const WCHAR *scheme;
WCHAR *str = NULL, *p, *q;
ULONG port = 0;
HRESULT hr = WS_E_INVALID_FORMAT;
TRACE( "%p %#lx %p %p %p\n", base, flags, heap, ret, error );
if (error) FIXME( "ignoring error parameter\n" );
if (!url || !heap || !ret) return E_INVALIDARG;
if (flags)
{
FIXME( "unimplemented flags %#lx\n", flags );
return E_NOTIMPL;
}
if (!(scheme = scheme_str( url->url.scheme, &len_scheme ))) goto done;
len = len_scheme + 3; /* '://' */
len += 6; /* ':65535' */
if ((hr = url_encode_size( url->host.chars, url->host.length, "", &len_enc )) != S_OK)
goto done;
len += len_enc;
if ((hr = url_encode_size( url->path.chars, url->path.length, "/", &len_enc )) != S_OK)
goto done;
len += len_enc;
if ((hr = url_encode_size( url->query.chars, url->query.length, "/?", &len_enc )) != S_OK)
goto done;
len += len_enc + 1; /* '?' */
if ((hr = url_encode_size( url->fragment.chars, url->fragment.length, "/?", &len_enc )) != S_OK)
goto done;
len += len_enc + 1; /* '#' */
ret_size = len * sizeof(WCHAR);
if (!(str = ws_alloc( heap, ret_size )))
{
hr = WS_E_QUOTA_EXCEEDED;
goto done;
}
memcpy( str, scheme, len_scheme * sizeof(WCHAR) );
p = str + len_scheme;
p[0] = ':';
p[1] = p[2] = '/';
p += 3;
if ((hr = url_encode( url->host.chars, url->host.length, p, "", &len_enc )) != S_OK)
goto done;
p += len_enc;
if (url->portAsString.length)
{
q = url->portAsString.chars;
len = url->portAsString.length;
while (len && '0' <= *q && *q <= '9')
{
if ((port = port * 10 + *q - '0') > 65535)
{
hr = WS_E_INVALID_FORMAT;
goto done;
}
q++; len--;
}
if (url->port && port != url->port)
{
hr = E_INVALIDARG;
goto done;
}
} else port = url->port;
if (port == default_port( url->url.scheme )) port = 0;
if (port)
{
WCHAR buf[7];
len = swprintf( buf, ARRAY_SIZE(buf), L":%u", port );
memcpy( p, buf, len * sizeof(WCHAR) );
p += len;
}
if ((hr = url_encode( url->path.chars, url->path.length, p, "/", &len_enc )) != S_OK)
goto done;
p += len_enc;
if (url->query.length)
{
*p++ = '?';
if ((hr = url_encode( url->query.chars, url->query.length, p, "/?", &len_enc )) != S_OK)
goto done;
p += len_enc;
}
if (url->fragment.length)
{
*p++ = '#';
if ((hr = url_encode( url->fragment.chars, url->fragment.length, p, "/?", &len_enc )) != S_OK)
goto done;
p += len_enc;
}
ret->length = p - str;
ret->chars = str;
hr = S_OK;
done:
if (hr != S_OK) ws_free( heap, str, ret_size );
TRACE( "returning %#lx\n", hr );
return hr;
}
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