gecko-dev/modules/libjar/nsJARURI.cpp

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/* -*- 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"
#include "nsReadableUtils.h"
////////////////////////////////////////////////////////////////////////////////
nsJARURI::nsJARURI()
: mJAREntry(nsnull)
{
NS_INIT_REFCNT();
}
nsJARURI::~nsJARURI()
{
}
NS_IMPL_THREADSAFE_ISUPPORTS3(nsJARURI, nsIJARURI, nsIURI, nsISerializable)
nsresult
nsJARURI::Init(const char *charsetHint)
{
mCharsetHint = charsetHint;
return NS_OK;
}
#define NS_JAR_SCHEME NS_LITERAL_CSTRING("jar:")
#define NS_JAR_DELIMITER NS_LITERAL_CSTRING("!/")
nsresult
nsJARURI::FormatSpec(const nsACString &entryPath, nsACString &result)
{
nsCAutoString fileSpec;
nsresult rv = mJARFile->GetSpec(fileSpec);
if (NS_FAILED(rv)) return rv;
result = NS_JAR_SCHEME + fileSpec + NS_JAR_DELIMITER + entryPath;
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
// nsISerializable methods:
NS_IMETHODIMP
nsJARURI::Read(nsIObjectInputStream* aStream)
{
NS_NOTREACHED("nsJARURI::Read");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsJARURI::Write(nsIObjectOutputStream* aStream)
{
NS_NOTREACHED("nsJARURI::Write");
return NS_ERROR_NOT_IMPLEMENTED;
}
////////////////////////////////////////////////////////////////////////////////
// nsIURI methods:
NS_IMETHODIMP
nsJARURI::GetSpec(nsACString &aSpec)
{
return FormatSpec(mJAREntry, aSpec);
}
NS_IMETHODIMP
nsJARURI::SetSpec(const nsACString &aSpec)
{
nsresult rv;
nsCOMPtr<nsIIOService> serv(do_GetIOService(&rv));
if (NS_FAILED(rv)) return rv;
nsCAutoString scheme;
rv = serv->ExtractScheme(aSpec, scheme);
if (NS_FAILED(rv)) return rv;
if (strcmp("jar", scheme.get()) != 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.
nsACString::const_iterator begin, end, delim_begin, delim_end;
aSpec.BeginReading(begin);
aSpec.EndReading(end);
delim_begin = begin;
delim_end = end;
if (!RFindInReadable(NS_JAR_DELIMITER, delim_begin, delim_end))
return NS_ERROR_MALFORMED_URI;
begin.advance(4);
rv = serv->NewURI(Substring(begin, delim_begin), mCharsetHint.get(), nsnull, getter_AddRefs(mJARFile));
if (NS_FAILED(rv)) return rv;
// skip over any extra '/' chars
while (*delim_end == '/')
++delim_end;
rv = serv->ResolveRelativePath(Substring(delim_end, end),
NS_LITERAL_CSTRING(""),
mJAREntry);
return rv;
}
NS_IMETHODIMP
nsJARURI::GetPrePath(nsACString &prePath)
{
prePath = "jar:";
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::GetScheme(nsACString &aScheme)
{
aScheme = "jar";
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::SetScheme(const nsACString &aScheme)
{
// doesn't make sense to set the scheme of a jar: URL
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetUserPass(nsACString &aUserPass)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetUserPass(const nsACString &aUserPass)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetUsername(nsACString &aUsername)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetUsername(const nsACString &aUsername)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetPassword(nsACString &aPassword)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetPassword(const nsACString &aPassword)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetHostPort(nsACString &aHostPort)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetHostPort(const nsACString &aHostPort)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetHost(nsACString &aHost)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetHost(const nsACString &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(nsACString &aPath)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::SetPath(const nsACString &aPath)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetAsciiSpec(nsACString &aSpec)
{
return GetSpec(aSpec);
}
NS_IMETHODIMP
nsJARURI::GetAsciiHost(nsACString &aHost)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsJARURI::GetOriginCharset(nsACString &aOriginCharset)
{
aOriginCharset.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::Equals(nsIURI *other, PRBool *result)
{
nsresult rv;
*result = PR_FALSE;
if (other == nsnull)
return NS_OK; // not equal
nsCOMPtr<nsIJARURI> otherJAR(do_QueryInterface(other, &rv));
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
nsCAutoString otherJAREntry;
rv = otherJAR->GetJAREntry(otherJAREntry);
if (NS_FAILED(rv)) return rv;
*result = (strcmp(mJAREntry.get(), otherJAREntry.get()) == 0);
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::SchemeIs(const char *i_Scheme, PRBool *o_Equals)
{
NS_ENSURE_ARG_POINTER(o_Equals);
if (!i_Scheme) return NS_ERROR_INVALID_ARG;
if (*i_Scheme == 'j' || *i_Scheme == 'J') {
*o_Equals = PL_strcasecmp("jar", i_Scheme) ? PR_FALSE : PR_TRUE;
} else {
*o_Equals = PR_FALSE;
}
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;
nsJARURI* uri = new nsJARURI();
if (uri == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(uri);
uri->mJARFile = newJARFile;
uri->mJAREntry = mJAREntry;
*result = uri;
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::Resolve(const nsACString &relativePath, nsACString &result)
{
nsresult rv;
nsCOMPtr<nsIIOService> serv(do_GetIOService(&rv));
if (NS_FAILED(rv)) return rv;
nsCAutoString scheme;
rv = serv->ExtractScheme(relativePath, scheme);
if (NS_SUCCEEDED(rv)) {
// then aSpec is absolute
result = relativePath;
return NS_OK;
}
nsCAutoString path(mJAREntry);
PRInt32 pos = path.RFind("/");
if (pos >= 0)
path.Truncate(pos + 1);
else
path = "";
nsCAutoString resolvedEntry;
rv = serv->ResolveRelativePath(relativePath, path,
resolvedEntry);
if (NS_FAILED(rv)) return rv;
return FormatSpec(resolvedEntry, result);
}
////////////////////////////////////////////////////////////////////////////////
// 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(nsACString &entryPath)
{
// trim off any trailing ref, query, or param
PRInt32 pos = mJAREntry.RFindCharInSet("#?;");
if (pos < 0)
pos = mJAREntry.Length();
entryPath = Substring(mJAREntry, 0, pos);
return NS_OK;
}
NS_IMETHODIMP
nsJARURI::SetJAREntry(const nsACString &entryPath)
{
nsresult rv;
nsCOMPtr<nsIIOService> serv(do_GetIOService(&rv));
if (NS_FAILED(rv)) return rv;
mJAREntry.Truncate();
return serv->ResolveRelativePath(entryPath, NS_LITERAL_CSTRING(""), mJAREntry);
}
////////////////////////////////////////////////////////////////////////////////