gecko-dev/modules/libjar/nsJARURI.cpp

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Исходник Обычный вид История

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsJARURI.h"
#include "nsNetUtil.h"
#include "nsIIOService.h"
#include "nsFileSpec.h"
#include "nsCRT.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsIZipReader.h"
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
////////////////////////////////////////////////////////////////////////////////
nsJARURI::nsJARURI()
: mJAREntry(nsnull)
{
NS_INIT_REFCNT();
}
nsJARURI::~nsJARURI()
{
}
NS_IMPL_ISUPPORTS2(nsJARURI, nsIJARURI, nsIURI)
NS_METHOD
nsJARURI::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
nsJARURI* uri = new nsJARURI();
if (uri == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(uri);
nsresult rv = uri->Init();
if (NS_SUCCEEDED(rv)) {
rv = uri->QueryInterface(aIID, aResult);
}
NS_RELEASE(uri);
return rv;
}
nsresult
nsJARURI::Init()
{
return NS_OK;
}
#define NS_JAR_SCHEME "jar:"
#define NS_JAR_DELIMITER "!/"
nsresult
nsJARURI::FormatSpec(const char* entryPath, char* *result)
{
nsresult rv;
char* jarFileSpec;
rv = mJARFile->GetSpec(&jarFileSpec);
if (NS_FAILED(rv)) return rv;
nsCString spec(NS_JAR_SCHEME);
spec += jarFileSpec;
nsCRT::free(jarFileSpec);
spec += NS_JAR_DELIMITER;
spec += entryPath;
*result = nsCRT::strdup(spec);
return *result ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
////////////////////////////////////////////////////////////////////////////////
// nsURI methods:
NS_IMETHODIMP
nsJARURI::GetSpec(char* *aSpec)
{
return FormatSpec(mJAREntry, aSpec);
}
NS_IMETHODIMP
nsJARURI::SetSpec(const char * aSpec)
{
nsresult rv;
NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
PRUint32 startPos, endPos;
rv = serv->ExtractScheme(aSpec, &startPos, &endPos, nsnull);
if (NS_FAILED(rv)) return rv;
if (nsCRT::strncmp("jar", &aSpec[startPos], endPos - startPos - 1) != 0)
return NS_ERROR_MALFORMED_URI;
// Search backward from the end for the "!/" delimiter. Remember, jar URLs
// can nest, e.g.:
// jar:jar:http://www.foo.com/bar.jar!/a.jar!/b.html
// This gets the b.html document from out of the a.jar file, that's
// contained within the bar.jar file.
nsCAutoString jarPath(aSpec);
PRInt32 pos = jarPath.RFind(NS_JAR_DELIMITER);
if (pos == -1 || endPos + 1 > (PRUint32)pos)
return NS_ERROR_MALFORMED_URI;
jarPath.Cut(pos, jarPath.Length());
jarPath.Cut(0, endPos);
rv = serv->NewURI(jarPath, nsnull, getter_AddRefs(mJARFile));
if (NS_FAILED(rv)) return rv;
nsCAutoString entry(aSpec);
entry.Cut(0, pos + 2); // 2 == strlen(NS_JAR_DELIMITER)
rv = serv->ResolveRelativePath(entry, nsnull, &mJAREntry);
return rv;
}
NS_IMETHODIMP
nsJARURI::GetPrePath(char* *prePath)
{
*prePath = nsCRT::strdup("jar:");
return *prePath ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
nsJARURI::SetPrePath(const char* prePath)
{
NS_NOTREACHED("nsJARURI::SetPrePath");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsJARURI::GetScheme(char * *aScheme)
{
*aScheme = nsCRT::strdup("jar");
return *aScheme ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
nsJARURI::SetScheme(const char * aScheme)
{
// doesn't make sense to set the scheme of a jar: URL
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetUsername(char * *aUsername)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetUsername(const char * aUsername)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetPassword(char * *aPassword)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetPassword(const char * aPassword)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetPreHost(char * *aPreHost)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetPreHost(const char * aPreHost)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetHost(char * *aHost)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetHost(const char * aHost)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetPort(PRInt32 *aPort)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetPort(PRInt32 aPort)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetPath(char * *aPath)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetPath(const char * aPath)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::Equals(nsIURI *other, PRBool *result)
{
nsresult rv;
*result = PR_FALSE;
nsJARURI* otherJAR;
rv = other->QueryInterface(NS_GET_IID(nsIJARURI), (void**)&otherJAR);
if (NS_FAILED(rv))
return NS_OK; // not equal
nsCOMPtr<nsIURI> otherJARFile;
rv = otherJAR->GetJARFile(getter_AddRefs(otherJARFile));
if (NS_FAILED(rv)) return rv;
PRBool equal;
rv = mJARFile->Equals(otherJARFile, &equal);
if (NS_FAILED(rv)) return rv;
if (!equal)
return NS_OK; // not equal
char* otherJAREntry;
rv = otherJAR->GetJAREntry(&otherJAREntry);
if (NS_FAILED(rv)) return rv;
*result = nsCRT::strcmp(mJAREntry, otherJAREntry) == 0;
nsCRT::free(otherJAREntry);
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::Clone(nsIURI **result)
{
nsresult rv;
nsCOMPtr<nsIURI> newJARFile;
rv = mJARFile->Clone(getter_AddRefs(newJARFile));
if (NS_FAILED(rv)) return rv;
char* newJAREntry = nsCRT::strdup(mJAREntry);
if (newJAREntry == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
nsJARURI* uri = new nsJARURI();
if (uri == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(uri);
uri->mJARFile = newJARFile;
uri->mJAREntry = newJAREntry;
*result = uri;
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::Resolve(const char *relativePath, char **result)
{
nsresult rv;
if (!relativePath) return NS_ERROR_NULL_POINTER;
NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
nsXPIDLCString scheme;
rv = serv->ExtractScheme(relativePath, nsnull, nsnull, getter_Copies(scheme));
if (NS_SUCCEEDED(rv)) {
// then aSpec is absolute
*result = nsCRT::strdup(relativePath);
if (*result == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
nsCAutoString path(mJAREntry);
PRInt32 pos = path.RFind("/");
if (pos >= 0)
path.Truncate(pos + 1);
else
path = "";
char* resolvedEntry;
rv = serv->ResolveRelativePath(relativePath, path.GetBuffer(),
&resolvedEntry);
if (NS_FAILED(rv)) return rv;
rv = FormatSpec(resolvedEntry, result);
nsCRT::free(resolvedEntry);
return rv;
}
////////////////////////////////////////////////////////////////////////////////
// nsIJARUri methods:
NS_IMETHODIMP
nsJARURI::GetJARFile(nsIURI* *jarFile)
{
*jarFile = mJARFile;
NS_ADDREF(*jarFile);
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::SetJARFile(nsIURI* jarFile)
{
mJARFile = jarFile;
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::GetJAREntry(char* *entryPath)
{
nsCAutoString entry(mJAREntry);
PRInt32 pos = entry.RFindCharInSet("#?;");
if (pos >= 0)
entry.Truncate(pos);
*entryPath = entry.ToNewCString();
return *entryPath ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
nsJARURI::SetJAREntry(const char* entryPath)
{
nsresult rv;
NS_WITH_SERVICE(nsIIOService, serv, kIOServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
if (mJAREntry)
nsCRT::free(mJAREntry);
rv = serv->ResolveRelativePath(entryPath, nsnull, &mJAREntry);
return rv;
}
////////////////////////////////////////////////////////////////////////////////