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Rewrite UrlCreateFromPath.

This commit is contained in:
Huw Davies 2004-10-05 18:31:41 +00:00 committed by Alexandre Julliard
parent 895129eec2
commit 10aac6c013
1 changed files with 70 additions and 190 deletions
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240
dlls/shlwapi/url.c
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@ -2102,6 +2102,41 @@ BOOL WINAPI PathIsURLW(LPCWSTR lpstrPath)
/*************************************************************************
* UrlCreateFromPathA [SHLWAPI.@]
*
* See UrlCreateFromPathW
*/
HRESULT WINAPI UrlCreateFromPathA(LPCSTR pszPath, LPSTR pszUrl, LPDWORD pcchUrl, DWORD dwReserved)
{
WCHAR bufW[INTERNET_MAX_URL_LENGTH];
WCHAR *urlW = bufW;
UNICODE_STRING pathW;
HRESULT ret;
DWORD lenW = sizeof(bufW)/sizeof(WCHAR), lenA;
if(!RtlCreateUnicodeStringFromAsciiz(&pathW, pszPath))
return E_INVALIDARG;
if((ret = UrlCreateFromPathW(pathW.Buffer, urlW, &lenW, dwReserved)) == E_POINTER) {
urlW = HeapAlloc(GetProcessHeap(), 0, lenW * sizeof(WCHAR));
ret = UrlCreateFromPathW(pathW.Buffer, urlW, &lenW, dwReserved);
}
if(ret == S_OK || ret == S_FALSE) {
RtlUnicodeToMultiByteSize(&lenA, urlW, lenW * sizeof(WCHAR));
if(*pcchUrl > lenA) {
RtlUnicodeToMultiByteN(pszUrl, *pcchUrl - 1, &lenA, urlW, lenW * sizeof(WCHAR));
pszUrl[lenA] = 0;
*pcchUrl = lenA;
} else {
*pcchUrl = lenA + 1;
ret = E_POINTER;
}
}
if(urlW != bufW) HeapFree(GetProcessHeap(), 0, urlW);
RtlFreeUnicodeString(&pathW);
return ret;
}
/*************************************************************************
* UrlCreateFromPathW [SHLWAPI.@]
*
* Create a Url from a file path.
*
* PARAMS
@ -2111,206 +2146,51 @@ BOOL WINAPI PathIsURLW(LPCWSTR lpstrPath)
* dwReserved [I] Reserved, must be 0
*
* RETURNS
* Success: S_OK. pszUrl contains the converted path.
* Success: S_OK pszUrl contains the converted path, S_FALSE if the path is already a Url
* Failure: An HRESULT error code.
*/
HRESULT WINAPI UrlCreateFromPathA(LPCSTR pszPath, LPSTR pszUrl, LPDWORD pcchUrl, DWORD dwReserved)
{
DWORD nCharBeforeColon = 0;
DWORD nSlashes = 0;
DWORD dwChRequired = 0;
LPSTR pszNewUrl = NULL;
LPCSTR pszConstPointer = NULL;
LPSTR pszPointer = NULL;
DWORD i;
HRESULT ret;
TRACE("(%s, %p, %p, 0x%08lx)\n", debugstr_a(pszPath), pszUrl, pcchUrl, dwReserved);
/* Validate arguments */
if (dwReserved != 0)
{
FIXME("dwReserved should be 0: 0x%08lx\n", dwReserved);
return E_INVALIDARG;
}
if (!pszUrl || !pcchUrl || !pszUrl)
{
ERR("Invalid argument\n");
return E_INVALIDARG;
}
for (pszConstPointer = pszPath; *pszConstPointer; pszConstPointer++)
{
if (isalpha(*pszConstPointer) || isdigit(*pszConstPointer) ||
*pszConstPointer == '.' || *pszConstPointer == '-')
nCharBeforeColon++;
else break;
}
if (*pszConstPointer == ':') /* then already in URL format, so copy */
{
dwChRequired = lstrlenA(pszPath);
if (dwChRequired > *pcchUrl)
{
*pcchUrl = dwChRequired;
return E_POINTER;
}
else
{
*pcchUrl = dwChRequired;
StrCpyA(pszUrl, pszPath);
return S_FALSE;
}
}
/* then must need converting to file: format */
/* Strip off leading slashes */
while (*pszPath == '\\' || *pszPath == '/')
{
pszPath++;
nSlashes++;
}
dwChRequired = *pcchUrl; /* UrlEscape will fill this in with the correct amount */
TRACE("pszUrl: %s\n", debugstr_a(pszPath));
pszNewUrl = HeapAlloc(GetProcessHeap(), 0, dwChRequired + 1);
ret = UrlEscapeA(pszPath, pszNewUrl, &dwChRequired, URL_ESCAPE_PERCENT);
TRACE("ret: 0x%08lx, pszUrl: %s\n", ret, debugstr_a(pszNewUrl));
TRACE("%ld\n", dwChRequired);
if (ret != E_POINTER && FAILED(ret))
return ret;
dwChRequired += 5; /* "file:" */
if ((lstrlenA(pszUrl) > 1) && isalpha(pszUrl[0]) && (pszUrl[1] == ':'))
{
dwChRequired += 3; /* "///" */
nSlashes = 3;
}
else
switch (nSlashes)
{
case 0: /* no slashes */
break;
case 2: /* two slashes */
case 4:
case 5:
case 6:
dwChRequired += 2;
nSlashes = 2;
break;
default: /* three slashes */
dwChRequired += 3;
nSlashes = 3;
}
if (dwChRequired > *pcchUrl)
return E_POINTER;
*pcchUrl = dwChRequired; /* Return number of chars required (not including termination) */
StrCpyA(pszUrl, "file:");
pszPointer = pszUrl + lstrlenA(pszUrl);
for (i=0; i < nSlashes; i++)
{
*pszPointer = '/';
pszPointer++;
}
StrCpyA(pszPointer, pszNewUrl);
TRACE("<- %s\n", debugstr_a(pszUrl));
return S_OK;
}
/*************************************************************************
* UrlCreateFromPathW [SHLWAPI.@]
*
* See UrlCreateFromPathA.
*/
HRESULT WINAPI UrlCreateFromPathW(LPCWSTR pszPath, LPWSTR pszUrl, LPDWORD pcchUrl, DWORD dwReserved)
{
DWORD nCharBeforeColon = 0;
DWORD nSlashes = 0;
DWORD dwChRequired = 0;
LPWSTR pszNewUrl = NULL;
LPCWSTR pszConstPointer = NULL;
LPWSTR pszPointer = NULL;
DWORD i;
DWORD needed;
HRESULT ret;
WCHAR *pszNewUrl;
WCHAR file_colonW[] = {'f','i','l','e',':',0};
WCHAR three_slashesW[] = {'/','/','/',0};
PARSEDURLW parsed_url;
TRACE("(%s, %p, %p, 0x%08lx)\n", debugstr_w(pszPath), pszUrl, pcchUrl, dwReserved);
/* Validate arguments */
if (dwReserved != 0)
return E_INVALIDARG;
if (!pszUrl || !pcchUrl || !pszUrl)
if (!pszUrl || !pcchUrl)
return E_INVALIDARG;
for (pszConstPointer = pszPath; *pszConstPointer; pszConstPointer++)
{
if (isalphaW(*pszConstPointer) || isdigitW(*pszConstPointer) ||
*pszConstPointer == '.' || *pszConstPointer == '-')
nCharBeforeColon++;
else break;
}
if (*pszConstPointer == ':') /* then already in URL format, so copy */
{
dwChRequired = lstrlenW(pszPath);
*pcchUrl = dwChRequired;
if (dwChRequired > *pcchUrl)
parsed_url.cbSize = sizeof(parsed_url);
if(ParseURLW(pszPath, &parsed_url) == S_OK) {
if(parsed_url.nScheme != URL_SCHEME_INVALID && parsed_url.cchProtocol > 1) {
needed = strlenW(pszPath);
if (needed >= *pcchUrl) {
*pcchUrl = needed + 1;
return E_POINTER;
else
{
StrCpyW(pszUrl, pszPath);
} else {
*pcchUrl = needed;
strcpyW(pszUrl, pszPath);
return S_FALSE;
}
}
/* then must need converting to file: format */
/* Strip off leading slashes */
while (*pszPath == '\\' || *pszPath == '/')
{
pszPath++;
nSlashes++;
}
dwChRequired = *pcchUrl; /* UrlEscape will fill this in with the correct amount */
ret = UrlEscapeW(pszPath, pszUrl, &dwChRequired, URL_ESCAPE_PERCENT);
if (ret != E_POINTER && FAILED(ret))
pszNewUrl = HeapAlloc(GetProcessHeap(), 0, (strlenW(pszPath) + 9) * sizeof(WCHAR)); /* "file:///" + pszPath_len + 1 */
strcpyW(pszNewUrl, file_colonW);
if(isalphaW(pszPath[0]) && pszPath[1] == ':')
strcatW(pszNewUrl, three_slashesW);
strcatW(pszNewUrl, pszPath);
ret = UrlEscapeW(pszNewUrl, pszUrl, pcchUrl, URL_ESCAPE_PERCENT);
HeapFree(GetProcessHeap(), 0, pszNewUrl);
return ret;
dwChRequired += 5; /* "file:" */
if ((lstrlenW(pszUrl) > 1) && isalphaW(pszUrl[0]) && (pszUrl[1] == ':'))
{
dwChRequired += 3; /* "///" */
nSlashes = 3;
}
else
switch (nSlashes)
{
case 0: /* no slashes */
break;
case 2: /* two slashes */
case 4:
case 5:
case 6:
dwChRequired += 2;
nSlashes = 2;
break;
default: /* three slashes */
dwChRequired += 3;
nSlashes = 3;
}
*pcchUrl = dwChRequired; /* Return number of chars required (not including termination) */
if (dwChRequired > *pcchUrl)
return E_POINTER;
pszNewUrl = HeapAlloc(GetProcessHeap(), 0, (dwChRequired + 1) * sizeof(WCHAR));
StrCpyW(pszNewUrl, fileW);
pszPointer = pszNewUrl + 4;
*pszPointer = ':';
pszPointer++;
for (i=0; i < nSlashes; i++)
{
*pszPointer = '/';
pszPointer++;
}
StrCpyW(pszPointer, pszPath);
StrCpyW(pszUrl, pszNewUrl);
return S_OK;
}
/*************************************************************************