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Sweden-Number/dlls/shlwapi/url.c

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/*
* Url functions
*
* Copyright 2000 Huw D M Davies for CodeWeavers.
*/
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/unicode.h"
#include "shlwapi.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(shell);
static const unsigned char HashDataLookup[256] = {
0x01, 0x0E, 0x6E, 0x19, 0x61, 0xAE, 0x84, 0x77, 0x8A, 0xAA, 0x7D, 0x76, 0x1B,
0xE9, 0x8C, 0x33, 0x57, 0xC5, 0xB1, 0x6B, 0xEA, 0xA9, 0x38, 0x44, 0x1E, 0x07,
0xAD, 0x49, 0xBC, 0x28, 0x24, 0x41, 0x31, 0xD5, 0x68, 0xBE, 0x39, 0xD3, 0x94,
0xDF, 0x30, 0x73, 0x0F, 0x02, 0x43, 0xBA, 0xD2, 0x1C, 0x0C, 0xB5, 0x67, 0x46,
0x16, 0x3A, 0x4B, 0x4E, 0xB7, 0xA7, 0xEE, 0x9D, 0x7C, 0x93, 0xAC, 0x90, 0xB0,
0xA1, 0x8D, 0x56, 0x3C, 0x42, 0x80, 0x53, 0x9C, 0xF1, 0x4F, 0x2E, 0xA8, 0xC6,
0x29, 0xFE, 0xB2, 0x55, 0xFD, 0xED, 0xFA, 0x9A, 0x85, 0x58, 0x23, 0xCE, 0x5F,
0x74, 0xFC, 0xC0, 0x36, 0xDD, 0x66, 0xDA, 0xFF, 0xF0, 0x52, 0x6A, 0x9E, 0xC9,
0x3D, 0x03, 0x59, 0x09, 0x2A, 0x9B, 0x9F, 0x5D, 0xA6, 0x50, 0x32, 0x22, 0xAF,
0xC3, 0x64, 0x63, 0x1A, 0x96, 0x10, 0x91, 0x04, 0x21, 0x08, 0xBD, 0x79, 0x40,
0x4D, 0x48, 0xD0, 0xF5, 0x82, 0x7A, 0x8F, 0x37, 0x69, 0x86, 0x1D, 0xA4, 0xB9,
0xC2, 0xC1, 0xEF, 0x65, 0xF2, 0x05, 0xAB, 0x7E, 0x0B, 0x4A, 0x3B, 0x89, 0xE4,
0x6C, 0xBF, 0xE8, 0x8B, 0x06, 0x18, 0x51, 0x14, 0x7F, 0x11, 0x5B, 0x5C, 0xFB,
0x97, 0xE1, 0xCF, 0x15, 0x62, 0x71, 0x70, 0x54, 0xE2, 0x12, 0xD6, 0xC7, 0xBB,
0x0D, 0x20, 0x5E, 0xDC, 0xE0, 0xD4, 0xF7, 0xCC, 0xC4, 0x2B, 0xF9, 0xEC, 0x2D,
0xF4, 0x6F, 0xB6, 0x99, 0x88, 0x81, 0x5A, 0xD9, 0xCA, 0x13, 0xA5, 0xE7, 0x47,
0xE6, 0x8E, 0x60, 0xE3, 0x3E, 0xB3, 0xF6, 0x72, 0xA2, 0x35, 0xA0, 0xD7, 0xCD,
0xB4, 0x2F, 0x6D, 0x2C, 0x26, 0x1F, 0x95, 0x87, 0x00, 0xD8, 0x34, 0x3F, 0x17,
0x25, 0x45, 0x27, 0x75, 0x92, 0xB8, 0xA3, 0xC8, 0xDE, 0xEB, 0xF8, 0xF3, 0xDB,
0x0A, 0x98, 0x83, 0x7B, 0xE5, 0xCB, 0x4C, 0x78, 0xD1 };
static BOOL URL_NeedEscapeA(CHAR ch, DWORD dwFlags)
{
if (isalnum(ch))
return FALSE;
if(dwFlags & URL_ESCAPE_SPACES_ONLY) {
if(ch == ' ')
return TRUE;
else
return FALSE;
}
if (ch <= 31 || ch >= 127)
return TRUE;
else {
switch (ch) {
case ' ':
case '<':
case '>':
case '\"':
case '{':
case '}':
case '|':
case '\\':
case '^':
case ']':
case '[':
case '`':
case '&':
return TRUE;
default:
return FALSE;
}
}
}
static BOOL URL_NeedEscapeW(WCHAR ch, DWORD dwFlags)
{
if (isalnum(ch))
return FALSE;
if(dwFlags & URL_ESCAPE_SPACES_ONLY) {
if(ch == L' ')
return TRUE;
else
return FALSE;
}
if (ch <= 31 || ch >= 127)
return TRUE;
else {
switch (ch) {
case L' ':
case L'<':
case L'>':
case L'\"':
case L'{':
case L'}':
case L'|':
case L'\\':
case L'^':
case L']':
case L'[':
case L'`':
case L'&':
return TRUE;
default:
return FALSE;
}
}
}
/*************************************************************************
* UrlCanonicalizeA [SHLWAPI.@]
*/
HRESULT WINAPI UrlCanonicalizeA(LPCSTR pszUrl, LPSTR pszCanonicalized,
LPDWORD pcchCanonicalized, DWORD dwFlags)
{
HRESULT hr = S_OK;
LPSTR lpszUrlCpy;
INT nLen;
TRACE("(%s %p %p 0x%08lx)\n", debugstr_a(pszUrl), pszCanonicalized,
pcchCanonicalized, dwFlags);
nLen = strlen(pszUrl);
lpszUrlCpy = HeapAlloc(GetProcessHeap(), 0, nLen + 1);
if (dwFlags & URL_DONT_SIMPLIFY)
memcpy(lpszUrlCpy, pszUrl, nLen + 1);
else {
FIXME("Simplify path\n");
memcpy(lpszUrlCpy, pszUrl, nLen + 1);
}
if(dwFlags & URL_UNESCAPE)
UrlUnescapeA(lpszUrlCpy, NULL, NULL, URL_UNESCAPE_INPLACE);
if(dwFlags & (URL_ESCAPE_UNSAFE | URL_ESCAPE_SPACES_ONLY)) {
DWORD EscapeFlags = dwFlags & (URL_ESCAPE_SPACES_ONLY
/* | URL_ESCAPE_PERCENT */);
hr = UrlEscapeA(lpszUrlCpy, pszCanonicalized, pcchCanonicalized,
EscapeFlags);
} else { /* No escapping needed, just copy the string */
nLen = strlen(lpszUrlCpy);
if(nLen < *pcchCanonicalized)
memcpy(pszCanonicalized, lpszUrlCpy, nLen + 1);
else {
hr = E_POINTER;
nLen++;
}
*pcchCanonicalized = nLen;
}
HeapFree(GetProcessHeap(), 0, lpszUrlCpy);
return hr;
}
/*************************************************************************
* UrlCanonicalizeW [SHLWAPI.@]
*/
HRESULT WINAPI UrlCanonicalizeW(LPCWSTR pszUrl, LPWSTR pszCanonicalized,
LPDWORD pcchCanonicalized, DWORD dwFlags)
{
HRESULT hr = S_OK;
LPWSTR lpszUrlCpy;
INT nLen, nByteLen;
TRACE("(%s %p %p 0x%08lx)\n", debugstr_w(pszUrl), pszCanonicalized,
pcchCanonicalized, dwFlags);
nByteLen = (lstrlenW(pszUrl) + 1) * sizeof(WCHAR); /* length in bytes */
lpszUrlCpy = HeapAlloc(GetProcessHeap(), 0, nByteLen);
if (dwFlags & URL_DONT_SIMPLIFY)
memcpy(lpszUrlCpy, pszUrl, nByteLen);
else {
FIXME("Simplify path\n");
memcpy(lpszUrlCpy, pszUrl, nByteLen);
}
if(dwFlags & URL_UNESCAPE)
UrlUnescapeW(lpszUrlCpy, NULL, NULL, URL_UNESCAPE_INPLACE);
if(dwFlags & (URL_ESCAPE_UNSAFE | URL_ESCAPE_SPACES_ONLY)) {
DWORD EscapeFlags = dwFlags & (URL_ESCAPE_SPACES_ONLY
/* | URL_ESCAPE_PERCENT */);
hr = UrlEscapeW(lpszUrlCpy, pszCanonicalized, pcchCanonicalized,
EscapeFlags);
} else { /* No escapping needed, just copy the string */
nLen = lstrlenW(lpszUrlCpy);
if(nLen < *pcchCanonicalized)
memcpy(pszCanonicalized, lpszUrlCpy, (nLen + 1)*sizeof(WCHAR));
else {
hr = E_POINTER;
nLen++;
}
*pcchCanonicalized = nLen;
}
HeapFree(GetProcessHeap(), 0, lpszUrlCpy);
if (hr == S_OK)
TRACE("result %s\n", debugstr_w(pszCanonicalized));
return hr;
}
/*************************************************************************
* UrlEscapeA [SHLWAPI.@]
*
* Converts unsafe characters into their escape sequences.
*
* The converted string is returned in pszEscaped if the buffer size
* (which should be supplied in pcchEscaped) is large enough, in this
* case the function returns S_OK and pcchEscaped contains the length
* of the escaped string. If the buffer is not large enough the
* function returns E_POINTER and pcchEscaped contains the required
* buffer size (including room for the '\0').
*
* By default the function stops converting at the first '?' or
* '#'. [MSDN says differently]. If URL_ESCAPE_SPACE_ONLY flag is set
* then only spaces are converted, but the conversion continues past a
* '?' or '#'.
*
* BUGS:
*
* None of the URL_ define values are documented, so they were
* determined by trial and error. MSDN mentions URL_ESCAPE_PERCENT
* but I can't find a value that does this under win2000.
* URL_DONT_ESCAPE_EXTRA_INFO appears to be the default which is what
* we assume here. URL_ESCAPE_SEGMENT_ONLY is not implemented
* (value??). A value of 0x2000 for dwFlags seems to escape
* '/'s too - this is neither documented on MSDN nor implemented here.
* For character values that are converted see URL_NeedEscape.
*/
HRESULT WINAPI UrlEscapeA(
LPCSTR pszUrl,
LPSTR pszEscaped,
LPDWORD pcchEscaped,
DWORD dwFlags)
{
LPCSTR src;
DWORD needed = 0, ret;
BOOL stop_escapping = FALSE;
char next[3], *dst = pszEscaped;
char hex[] = "0123456789ABCDEF";
INT len;
TRACE("(%s %p %p 0x%08lx)\n", debugstr_a(pszUrl), pszEscaped,
pcchEscaped, dwFlags);
if(dwFlags & ~URL_ESCAPE_SPACES_ONLY)
FIXME("Unimplemented flags: %08lx\n", dwFlags);
for(src = pszUrl; *src; src++) {
if(!(dwFlags & URL_ESCAPE_SPACES_ONLY) &&
(*src == '#' || *src == '?'))
stop_escapping = TRUE;
if(URL_NeedEscapeA(*src, dwFlags) && stop_escapping == FALSE) {
next[0] = '%';
next[1] = hex[(*src >> 4) & 0xf];
next[2] = hex[*src & 0xf];
len = 3;
} else {
next[0] = *src;
len = 1;
}
if(needed + len <= *pcchEscaped) {
memcpy(dst, next, len);
dst += len;
}
needed += len;
}
if(needed < *pcchEscaped) {
*dst = '\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
*pcchEscaped = needed;
return ret;
}
/*************************************************************************
* UrlEscapeW [SHLWAPI.@]
*
* See UrlEscapeA for list of assumptions, bugs, and FIXMEs
*/
HRESULT WINAPI UrlEscapeW(
LPCWSTR pszUrl,
LPWSTR pszEscaped,
LPDWORD pcchEscaped,
DWORD dwFlags)
{
LPCWSTR src;
DWORD needed = 0, ret;
BOOL stop_escapping = FALSE;
WCHAR next[5], *dst = pszEscaped;
CHAR hex[] = "0123456789ABCDEF";
INT len;
TRACE("(%s %p %p 0x%08lx)\n", debugstr_w(pszUrl), pszEscaped,
pcchEscaped, dwFlags);
if(dwFlags & ~URL_ESCAPE_SPACES_ONLY)
FIXME("Unimplemented flags: %08lx\n", dwFlags);
for(src = pszUrl; *src; src++) {
if(!(dwFlags & URL_ESCAPE_SPACES_ONLY) &&
(*src == L'#' || *src == L'?'))
stop_escapping = TRUE;
if(URL_NeedEscapeW(*src, dwFlags) && stop_escapping == FALSE) {
next[0] = L'%';
next[1] = hex[(*src >> 12) & 0xf];
next[2] = hex[(*src >> 8) & 0xf];
next[3] = hex[(*src >> 4) & 0xf];
next[4] = hex[*src & 0xf];
len = 5;
} else {
next[0] = *src;
len = 1;
}
if(needed + len <= *pcchEscaped) {
memcpy(dst, next, len*sizeof(WCHAR));
dst += len;
}
needed += len;
}
if(needed < *pcchEscaped) {
*dst = L'\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
*pcchEscaped = needed;
return ret;
}
/*************************************************************************
* UrlUnescapeA [SHLWAPI.@]
*
* Converts escape sequences back to ordinary characters.
*
* If URL_ESCAPE_INPLACE is set in dwFlags then pszUnescaped and
* pcchUnescaped are ignored and the converted string is returned in
* pszUrl, otherwise the string is returned in pszUnescaped.
* pcchUnescaped should contain the size of pszUnescaped on calling
* and will contain the length the the returned string on return if
* the buffer is big enough else it will contain the buffer size
* required (including room for the '\0'). The function returns S_OK
* on success or E_POINTER if the buffer is not large enough. If the
* URL_DONT_ESCAPE_EXTRA_INFO flag is set then the conversion stops at
* the first occurrence of either '?' or '#'.
*
*/
HRESULT WINAPI UrlUnescapeA(
LPCSTR pszUrl,
LPSTR pszUnescaped,
LPDWORD pcchUnescaped,
DWORD dwFlags)
{
char *dst, next;
LPCSTR src;
HRESULT ret;
DWORD needed;
BOOL stop_unescapping = FALSE;
TRACE("(%s, %p, %p, 0x%08lx): stub\n", debugstr_a(pszUrl), pszUnescaped,
pcchUnescaped, dwFlags);
if(dwFlags & URL_UNESCAPE_INPLACE)
dst = (char*)pszUrl;
else
dst = pszUnescaped;
for(src = pszUrl, needed = 0; *src; src++, needed++) {
if(dwFlags & URL_DONT_UNESCAPE_EXTRA_INFO &&
(*src == '#' || *src == '?')) {
stop_unescapping = TRUE;
next = *src;
} else if(*src == '%' && isxdigit(*(src + 1)) && isxdigit(*(src + 2))
&& stop_unescapping == FALSE) {
INT ih;
char buf[3];
memcpy(buf, src + 1, 2);
buf[2] = '\0';
ih = strtol(buf, NULL, 16);
next = (CHAR) ih;
src += 2; /* Advance to end of escape */
} else
next = *src;
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped)
*dst++ = next;
}
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped) {
*dst = '\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
if(!(dwFlags & URL_UNESCAPE_INPLACE))
*pcchUnescaped = needed;
if (ret == S_OK) {
TRACE("result %s\n", (dwFlags & URL_UNESCAPE_INPLACE) ?
debugstr_a(pszUrl) : debugstr_a(pszUnescaped));
}
return ret;
}
/*************************************************************************
* UrlUnescapeW [SHLWAPI.@]
*
* See UrlUnescapeA for list of assumptions, bugs, and FIXMEs
*/
HRESULT WINAPI UrlUnescapeW(
LPCWSTR pszUrl,
LPWSTR pszUnescaped,
LPDWORD pcchUnescaped,
DWORD dwFlags)
{
WCHAR *dst, next;
LPCWSTR src;
HRESULT ret;
DWORD needed;
BOOL stop_unescapping = FALSE;
TRACE("(%s, %p, %p, 0x%08lx): stub\n", debugstr_w(pszUrl), pszUnescaped,
pcchUnescaped, dwFlags);
if(dwFlags & URL_UNESCAPE_INPLACE)
dst = (WCHAR*)pszUrl;
else
dst = pszUnescaped;
for(src = pszUrl, needed = 0; *src; src++, needed++) {
if(dwFlags & URL_DONT_UNESCAPE_EXTRA_INFO &&
(*src == L'#' || *src == L'?')) {
stop_unescapping = TRUE;
next = *src;
} else if(*src == L'%' && iswxdigit(*(src + 1)) && iswxdigit(*(src + 2))
&& stop_unescapping == FALSE) {
INT ih;
WCHAR buf[3];
memcpy(buf, src + 1, 2*sizeof(WCHAR));
buf[2] = L'\0';
ih = wcstol(buf, NULL, 16);
next = (WCHAR) ih;
src += 2; /* Advance to end of escape */
} else
next = *src;
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped)
*dst++ = next;
}
if(dwFlags & URL_UNESCAPE_INPLACE || needed < *pcchUnescaped) {
*dst = L'\0';
ret = S_OK;
} else {
needed++; /* add one for the '\0' */
ret = E_POINTER;
}
if(!(dwFlags & URL_UNESCAPE_INPLACE))
*pcchUnescaped = needed;
if (ret == S_OK) {
TRACE("result %s\n", (dwFlags & URL_UNESCAPE_INPLACE) ?
debugstr_w(pszUrl) : debugstr_w(pszUnescaped));
}
return ret;
}
/*************************************************************************
* UrlGetLocationA [SHLWAPI.@]
*/
LPCSTR WINAPI UrlGetLocationA(
LPCSTR pszUrl)
{
FIXME("(%s): stub\n", debugstr_a(pszUrl));
return 0;
}
/*************************************************************************
* UrlGetLocationW [SHLWAPI.@]
*/
LPCWSTR WINAPI UrlGetLocationW(
LPCWSTR pszUrl)
{
FIXME("(%s): stub\n", debugstr_w(pszUrl));
return 0;
}
/*************************************************************************
* HashData [SHLWAPI.@]
*
* Hash an input block into a variable sized digest.
*/
BOOL WINAPI HashData(const unsigned char *lpSrc, INT nSrcLen,
unsigned char *lpDest, INT nDestLen)
{
INT srcCount = nSrcLen - 1, destCount = nDestLen - 1;
if (IsBadReadPtr(lpSrc, nSrcLen) ||
IsBadWritePtr(lpDest, nDestLen))
return FALSE;
while (destCount >= 0)
{
lpDest[destCount] = (destCount & 0xff);
destCount--;
}
while (srcCount >= 0)
{
destCount = nDestLen - 1;
while (destCount >= 0)
{
lpDest[destCount] = HashDataLookup[lpSrc[srcCount] ^ lpDest[destCount]];
destCount--;
}
srcCount--;
}
return TRUE;
}
/*************************************************************************
* UrlHashA [SHLWAPI.@]
*
* Hash an ASCII URL.
*/
HRESULT WINAPI UrlHashA(LPCSTR pszUrl, unsigned char *lpDest, INT nDestLen)
{
if (IsBadStringPtrA(pszUrl, -1) || IsBadWritePtr(lpDest, nDestLen))
return E_INVALIDARG;
HashData(pszUrl, strlen(pszUrl), lpDest, nDestLen);
return NOERROR;
}
/*************************************************************************
* UrlApplySchemeW [SHLWAPI.@]
*/
HRESULT WINAPI UrlApplySchemeW(LPCWSTR pszIn, LPWSTR pszOut, LPDWORD pcchOut, DWORD dwFlags)
{
HRESULT err = NOERROR;
FIXME("(%s %p %p %08lx): stub !\n", debugstr_w(pszIn), pszOut, pcchOut, dwFlags);
strcpyW(pszOut, pszIn);
*pcchOut = (err != E_POINTER) ? strlenW(pszOut) : 0;
return err;
}
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