The Tor Browser: modules/libjar/nsJARURI.cpp@b8a032363ba2 (annotated)

modules/libjar/nsJARURI.cpp@b8a032363ba2 (annotated)

modules/libjar/nsJARURI.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "base/basictypes.h"
 #include "nsJARURI.h"
 #include "nsNetUtil.h"
 #include "nsIIOService.h"
 #include "nsIStandardURL.h"
 #include "nsCRT.h"
 #include "nsIComponentManager.h"
 #include "nsIServiceManager.h"
 #include "nsIZipReader.h"
 #include "nsReadableUtils.h"
 #include "nsAutoPtr.h"
 #include "nsNetCID.h"
 #include "nsIObjectInputStream.h"
 #include "nsIObjectOutputStream.h"
 #include "nsIProgrammingLanguage.h"
 #include "mozilla/ipc/URIUtils.h"
 using namespace mozilla::ipc;
 static NS_DEFINE_CID(kJARURICID, NS_JARURI_CID);
 ////////////////////////////////////////////////////////////////////////////////
 nsJARURI::nsJARURI()
 {
 }
 nsJARURI::~nsJARURI()
 {
 }
 // XXX Why is this threadsafe?
 NS_IMPL_ADDREF(nsJARURI)
 NS_IMPL_RELEASE(nsJARURI)
 NS_INTERFACE_MAP_BEGIN(nsJARURI)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIJARURI)
   NS_INTERFACE_MAP_ENTRY(nsIURI)
   NS_INTERFACE_MAP_ENTRY(nsIURL)
   NS_INTERFACE_MAP_ENTRY(nsIJARURI)
   NS_INTERFACE_MAP_ENTRY(nsISerializable)
   NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
   NS_INTERFACE_MAP_ENTRY(nsINestedURI)
   NS_INTERFACE_MAP_ENTRY(nsIIPCSerializableURI)
   // see nsJARURI::Equals
   if (aIID.Equals(NS_GET_IID(nsJARURI)))
       foundInterface = reinterpret_cast<nsISupports*>(this);
   else
 NS_INTERFACE_MAP_END
 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("!/")
 #define NS_BOGUS_ENTRY_SCHEME   NS_LITERAL_CSTRING("x:///")
 // FormatSpec takes the entry spec (including the "x:///" at the
 // beginning) and gives us a full JAR spec.
 nsresult
 nsJARURI::FormatSpec(const nsACString &entrySpec, nsACString &result,
                      bool aIncludeScheme)
 {
     // The entrySpec MUST start with "x:///"
     NS_ASSERTION(StringBeginsWith(entrySpec, NS_BOGUS_ENTRY_SCHEME),
                  "bogus entry spec");
     nsAutoCString fileSpec;
     nsresult rv = mJARFile->GetSpec(fileSpec);
     if (NS_FAILED(rv)) return rv;
     if (aIncludeScheme)
         result = NS_JAR_SCHEME;
     else
         result.Truncate();
     result.Append(fileSpec + NS_JAR_DELIMITER +
                   Substring(entrySpec, 5, entrySpec.Length() - 5));
     return NS_OK;
 }
 nsresult
 nsJARURI::CreateEntryURL(const nsACString& entryFilename,
                          const char* charset,
                          nsIURL** url)
 {
     *url = nullptr;
     nsCOMPtr<nsIStandardURL> stdURL(do_CreateInstance(NS_STANDARDURL_CONTRACTID));
     if (!stdURL) {
         return NS_ERROR_OUT_OF_MEMORY;
     }
     // Flatten the concatenation, just in case.  See bug 128288
     nsAutoCString spec(NS_BOGUS_ENTRY_SCHEME + entryFilename);
     nsresult rv = stdURL->Init(nsIStandardURL::URLTYPE_NO_AUTHORITY, -1,
                                spec, charset, nullptr);
     if (NS_FAILED(rv)) {
         return rv;
     }
     return CallQueryInterface(stdURL, url);
 }
 ////////////////////////////////////////////////////////////////////////////////
 // nsISerializable methods:
 NS_IMETHODIMP
 nsJARURI::Read(nsIObjectInputStream* aInputStream)
 {
     nsresult rv;
     nsCOMPtr<nsISupports> supports;
     rv = aInputStream->ReadObject(true, getter_AddRefs(supports));
     NS_ENSURE_SUCCESS(rv, rv);
     mJARFile = do_QueryInterface(supports, &rv);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = aInputStream->ReadObject(true, getter_AddRefs(supports));
     NS_ENSURE_SUCCESS(rv, rv);
     mJAREntry = do_QueryInterface(supports);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = aInputStream->ReadCString(mCharsetHint);
     return rv;
 }
 NS_IMETHODIMP
 nsJARURI::Write(nsIObjectOutputStream* aOutputStream)
 {
     nsresult rv;
     rv = aOutputStream->WriteCompoundObject(mJARFile, NS_GET_IID(nsIURI),
                                             true);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = aOutputStream->WriteCompoundObject(mJAREntry, NS_GET_IID(nsIURL),
                                             true);
     NS_ENSURE_SUCCESS(rv, rv);
     rv = aOutputStream->WriteStringZ(mCharsetHint.get());
     return rv;
 }
 ////////////////////////////////////////////////////////////////////////////////
 // nsIClassInfo methods:
 NS_IMETHODIMP
 nsJARURI::GetInterfaces(uint32_t *count, nsIID * **array)
 {
     *count = 0;
     *array = nullptr;
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::GetHelperForLanguage(uint32_t language, nsISupports **_retval)
 {
     *_retval = nullptr;
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::GetContractID(char * *aContractID)
 {
     *aContractID = nullptr;
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::GetClassDescription(char * *aClassDescription)
 {
     *aClassDescription = nullptr;
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::GetClassID(nsCID * *aClassID)
 {
     *aClassID = (nsCID*) nsMemory::Alloc(sizeof(nsCID));
     if (!*aClassID)
         return NS_ERROR_OUT_OF_MEMORY;
     return GetClassIDNoAlloc(*aClassID);
 }
 NS_IMETHODIMP
 nsJARURI::GetImplementationLanguage(uint32_t *aImplementationLanguage)
 {
     *aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::GetFlags(uint32_t *aFlags)
 {
     // XXX We implement THREADSAFE addref/release, but probably shouldn't.
     *aFlags = nsIClassInfo::MAIN_THREAD_ONLY;
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
 {
     *aClassIDNoAlloc = kJARURICID;
     return NS_OK;
 }
 ////////////////////////////////////////////////////////////////////////////////
 // nsIURI methods:
 NS_IMETHODIMP
 nsJARURI::GetSpec(nsACString &aSpec)
 {
     nsAutoCString entrySpec;
     mJAREntry->GetSpec(entrySpec);
     return FormatSpec(entrySpec, aSpec);
 }
 NS_IMETHODIMP
 nsJARURI::GetSpecIgnoringRef(nsACString &aSpec)
 {
     nsAutoCString entrySpec;
     mJAREntry->GetSpecIgnoringRef(entrySpec);
     return FormatSpec(entrySpec, aSpec);
 }
 NS_IMETHODIMP
 nsJARURI::GetHasRef(bool *result)
 {
     return mJAREntry->GetHasRef(result);
 }
 NS_IMETHODIMP
 nsJARURI::SetSpec(const nsACString& aSpec)
 {
     return SetSpecWithBase(aSpec, nullptr);
 }
 nsresult
 nsJARURI::SetSpecWithBase(const nsACString &aSpec, nsIURI* aBaseURL)
 {
     nsresult rv;
     nsCOMPtr<nsIIOService> ioServ(do_GetIOService(&rv));
     NS_ENSURE_SUCCESS(rv, rv);
     nsAutoCString scheme;
     rv = ioServ->ExtractScheme(aSpec, scheme);
     if (NS_FAILED(rv)) {
         // not an absolute URI
         if (!aBaseURL)
             return NS_ERROR_MALFORMED_URI;
         nsRefPtr<nsJARURI> otherJAR;
         aBaseURL->QueryInterface(NS_GET_IID(nsJARURI), getter_AddRefs(otherJAR));
         NS_ENSURE_TRUE(otherJAR, NS_NOINTERFACE);
         mJARFile = otherJAR->mJARFile;
         nsCOMPtr<nsIStandardURL> entry(do_CreateInstance(NS_STANDARDURL_CONTRACTID));
         if (!entry)
             return NS_ERROR_OUT_OF_MEMORY;
         rv = entry->Init(nsIStandardURL::URLTYPE_NO_AUTHORITY, -1,
                          aSpec, mCharsetHint.get(), otherJAR->mJAREntry);
         if (NS_FAILED(rv))
             return rv;
         mJAREntry = do_QueryInterface(entry);
         if (!mJAREntry)
             return NS_NOINTERFACE;
         return NS_OK;
     }
     NS_ENSURE_TRUE(scheme.EqualsLiteral("jar"), NS_ERROR_MALFORMED_URI);
     nsACString::const_iterator begin, end;
     aSpec.BeginReading(begin);
     aSpec.EndReading(end);
     while (begin != end && *begin != ':')
         ++begin;
     ++begin; // now we're past the "jar:"
     // 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.
     // Also, the outermost "inner" URI may be a relative URI:
     //   jar:../relative.jar!/a.html
     nsACString::const_iterator delim_begin (begin),
                                delim_end   (end);
     if (!RFindInReadable(NS_JAR_DELIMITER, delim_begin, delim_end))
         return NS_ERROR_MALFORMED_URI;
     rv = ioServ->NewURI(Substring(begin, delim_begin), mCharsetHint.get(),
                         aBaseURL, getter_AddRefs(mJARFile));
     if (NS_FAILED(rv)) return rv;
     NS_TryToSetImmutable(mJARFile);
     // skip over any extra '/' chars
     while (*delim_end == '/')
         ++delim_end;
     return SetJAREntry(Substring(delim_end, end));
 }
 NS_IMETHODIMP
 nsJARURI::GetPrePath(nsACString &prePath)
 {
     prePath = NS_JAR_SCHEME;
     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(int32_t *aPort)
 {
     return NS_ERROR_FAILURE;
 }
 NS_IMETHODIMP
 nsJARURI::SetPort(int32_t aPort)
 {
     return NS_ERROR_FAILURE;
 }
 NS_IMETHODIMP
 nsJARURI::GetPath(nsACString &aPath)
 {
     nsAutoCString entrySpec;
     mJAREntry->GetSpec(entrySpec);
     return FormatSpec(entrySpec, aPath, false);
 }
 NS_IMETHODIMP
 nsJARURI::SetPath(const nsACString &aPath)
 {
     return NS_ERROR_FAILURE;
 }
 NS_IMETHODIMP
 nsJARURI::GetAsciiSpec(nsACString &aSpec)
 {
     // XXX Shouldn't this like... make sure it returns ASCII or something?
     return GetSpec(aSpec);
 }
 NS_IMETHODIMP
 nsJARURI::GetAsciiHost(nsACString &aHost)
 {
     return NS_ERROR_FAILURE;
 }
 NS_IMETHODIMP
 nsJARURI::GetOriginCharset(nsACString &aOriginCharset)
 {
     aOriginCharset = mCharsetHint;
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::Equals(nsIURI *other, bool *result)
 {
     return EqualsInternal(other, eHonorRef, result);
 }
 NS_IMETHODIMP
 nsJARURI::EqualsExceptRef(nsIURI *other, bool *result)
 {
     return EqualsInternal(other, eIgnoreRef, result);
 }
 // Helper method:
 /* virtual */ nsresult
 nsJARURI::EqualsInternal(nsIURI *other,
                          nsJARURI::RefHandlingEnum refHandlingMode,
                          bool *result)
 {
     *result = false;
     if (!other)
         return NS_OK;	// not equal
     nsRefPtr<nsJARURI> otherJAR;
     other->QueryInterface(NS_GET_IID(nsJARURI), getter_AddRefs(otherJAR));
     if (!otherJAR)
         return NS_OK;   // not equal
     bool equal;
     nsresult rv = mJARFile->Equals(otherJAR->mJARFile, &equal);
     if (NS_FAILED(rv) || !equal) {
         return rv;   // not equal
     }
     return refHandlingMode == eHonorRef ?
         mJAREntry->Equals(otherJAR->mJAREntry, result) :
         mJAREntry->EqualsExceptRef(otherJAR->mJAREntry, result);
 }
 NS_IMETHODIMP
 nsJARURI::SchemeIs(const char *i_Scheme, bool *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) ? false : true;
     } else {
         *o_Equals = false;
     }
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::Clone(nsIURI **result)
 {
     nsresult rv;
     nsCOMPtr<nsIJARURI> uri;
     rv = CloneWithJARFileInternal(mJARFile, eHonorRef, getter_AddRefs(uri));
     if (NS_FAILED(rv)) return rv;
     return CallQueryInterface(uri, result);
 }
 NS_IMETHODIMP
 nsJARURI::CloneIgnoringRef(nsIURI **result)
 {
     nsresult rv;
     nsCOMPtr<nsIJARURI> uri;
     rv = CloneWithJARFileInternal(mJARFile, eIgnoreRef, getter_AddRefs(uri));
     if (NS_FAILED(rv)) return rv;
     return CallQueryInterface(uri, result);
 }
 NS_IMETHODIMP
 nsJARURI::Resolve(const nsACString &relativePath, nsACString &result)
 {
     nsresult rv;
     nsCOMPtr<nsIIOService> ioServ(do_GetIOService(&rv));
     if (NS_FAILED(rv))
       return rv;
     nsAutoCString scheme;
     rv = ioServ->ExtractScheme(relativePath, scheme);
     if (NS_SUCCEEDED(rv)) {
         // then aSpec is absolute
         result = relativePath;
         return NS_OK;
     }
     nsAutoCString resolvedPath;
     mJAREntry->Resolve(relativePath, resolvedPath);
     return FormatSpec(resolvedPath, result);
 }
 ////////////////////////////////////////////////////////////////////////////////
 // nsIURL methods:
 NS_IMETHODIMP
 nsJARURI::GetFilePath(nsACString& filePath)
 {
     return mJAREntry->GetFilePath(filePath);
 }
 NS_IMETHODIMP
 nsJARURI::SetFilePath(const nsACString& filePath)
 {
     return mJAREntry->SetFilePath(filePath);
 }
 NS_IMETHODIMP
 nsJARURI::GetQuery(nsACString& query)
 {
     return mJAREntry->GetQuery(query);
 }
 NS_IMETHODIMP
 nsJARURI::SetQuery(const nsACString& query)
 {
     return mJAREntry->SetQuery(query);
 }
 NS_IMETHODIMP
 nsJARURI::GetRef(nsACString& ref)
 {
     return mJAREntry->GetRef(ref);
 }
 NS_IMETHODIMP
 nsJARURI::SetRef(const nsACString& ref)
 {
     return mJAREntry->SetRef(ref);
 }
 NS_IMETHODIMP
 nsJARURI::GetDirectory(nsACString& directory)
 {
     return mJAREntry->GetDirectory(directory);
 }
 NS_IMETHODIMP
 nsJARURI::SetDirectory(const nsACString& directory)
 {
     return mJAREntry->SetDirectory(directory);
 }
 NS_IMETHODIMP
 nsJARURI::GetFileName(nsACString& fileName)
 {
     return mJAREntry->GetFileName(fileName);
 }
 NS_IMETHODIMP
 nsJARURI::SetFileName(const nsACString& fileName)
 {
     return mJAREntry->SetFileName(fileName);
 }
 NS_IMETHODIMP
 nsJARURI::GetFileBaseName(nsACString& fileBaseName)
 {
     return mJAREntry->GetFileBaseName(fileBaseName);
 }
 NS_IMETHODIMP
 nsJARURI::SetFileBaseName(const nsACString& fileBaseName)
 {
     return mJAREntry->SetFileBaseName(fileBaseName);
 }
 NS_IMETHODIMP
 nsJARURI::GetFileExtension(nsACString& fileExtension)
 {
     return mJAREntry->GetFileExtension(fileExtension);
 }
 NS_IMETHODIMP
 nsJARURI::SetFileExtension(const nsACString& fileExtension)
 {
     return mJAREntry->SetFileExtension(fileExtension);
 }
 NS_IMETHODIMP
 nsJARURI::GetCommonBaseSpec(nsIURI* uriToCompare, nsACString& commonSpec)
 {
     commonSpec.Truncate();
     NS_ENSURE_ARG_POINTER(uriToCompare);
     commonSpec.Truncate();
     nsCOMPtr<nsIJARURI> otherJARURI(do_QueryInterface(uriToCompare));
     if (!otherJARURI) {
         // Nothing in common
         return NS_OK;
     }
     nsCOMPtr<nsIURI> otherJARFile;
     nsresult rv = otherJARURI->GetJARFile(getter_AddRefs(otherJARFile));
     if (NS_FAILED(rv)) return rv;
     bool equal;
     rv = mJARFile->Equals(otherJARFile, &equal);
     if (NS_FAILED(rv)) return rv;
     if (!equal) {
         // See what the JAR file URIs have in common
         nsCOMPtr<nsIURL> ourJARFileURL(do_QueryInterface(mJARFile));
         if (!ourJARFileURL) {
             // Not a URL, so nothing in common
             return NS_OK;
         }
         nsAutoCString common;
         rv = ourJARFileURL->GetCommonBaseSpec(otherJARFile, common);
         if (NS_FAILED(rv)) return rv;
         commonSpec = NS_JAR_SCHEME + common;
         return NS_OK;
     }
     // At this point we have the same JAR file.  Compare the JAREntrys
     nsAutoCString otherEntry;
     rv = otherJARURI->GetJAREntry(otherEntry);
     if (NS_FAILED(rv)) return rv;
     nsAutoCString otherCharset;
     rv = uriToCompare->GetOriginCharset(otherCharset);
     if (NS_FAILED(rv)) return rv;
     nsCOMPtr<nsIURL> url;
     rv = CreateEntryURL(otherEntry, otherCharset.get(), getter_AddRefs(url));
     if (NS_FAILED(rv)) return rv;
     nsAutoCString common;
     rv = mJAREntry->GetCommonBaseSpec(url, common);
     if (NS_FAILED(rv)) return rv;
     rv = FormatSpec(common, commonSpec);
     return rv;
 }
 NS_IMETHODIMP
 nsJARURI::GetRelativeSpec(nsIURI* uriToCompare, nsACString& relativeSpec)
 {
     GetSpec(relativeSpec);
     NS_ENSURE_ARG_POINTER(uriToCompare);
     nsCOMPtr<nsIJARURI> otherJARURI(do_QueryInterface(uriToCompare));
     if (!otherJARURI) {
         // Nothing in common
         return NS_OK;
     }
     nsCOMPtr<nsIURI> otherJARFile;
     nsresult rv = otherJARURI->GetJARFile(getter_AddRefs(otherJARFile));
     if (NS_FAILED(rv)) return rv;
     bool equal;
     rv = mJARFile->Equals(otherJARFile, &equal);
     if (NS_FAILED(rv)) return rv;
     if (!equal) {
         // We live in different JAR files.  Nothing in common.
         return rv;
     }
     // Same JAR file.  Compare the JAREntrys
     nsAutoCString otherEntry;
     rv = otherJARURI->GetJAREntry(otherEntry);
     if (NS_FAILED(rv)) return rv;
     nsAutoCString otherCharset;
     rv = uriToCompare->GetOriginCharset(otherCharset);
     if (NS_FAILED(rv)) return rv;
     nsCOMPtr<nsIURL> url;
     rv = CreateEntryURL(otherEntry, otherCharset.get(), getter_AddRefs(url));
     if (NS_FAILED(rv)) return rv;
     nsAutoCString relativeEntrySpec;
     rv = mJAREntry->GetRelativeSpec(url, relativeEntrySpec);
     if (NS_FAILED(rv)) return rv;
     if (!StringBeginsWith(relativeEntrySpec, NS_BOGUS_ENTRY_SCHEME)) {
         // An actual relative spec!
         relativeSpec = relativeEntrySpec;
     }
     return rv;
 }
 ////////////////////////////////////////////////////////////////////////////////
 // nsIJARURI methods:
 NS_IMETHODIMP
 nsJARURI::GetJARFile(nsIURI* *jarFile)
 {
     return GetInnerURI(jarFile);
 }
 NS_IMETHODIMP
 nsJARURI::GetJAREntry(nsACString &entryPath)
 {
     nsAutoCString filePath;
     mJAREntry->GetFilePath(filePath);
     NS_ASSERTION(filePath.Length() > 0, "path should never be empty!");
     // Trim off the leading '/'
     entryPath = Substring(filePath, 1, filePath.Length() - 1);
     return NS_OK;
 }
 NS_IMETHODIMP
 nsJARURI::SetJAREntry(const nsACString &entryPath)
 {
     return CreateEntryURL(entryPath, mCharsetHint.get(),
                           getter_AddRefs(mJAREntry));
 }
 NS_IMETHODIMP
 nsJARURI::CloneWithJARFile(nsIURI *jarFile, nsIJARURI **result)
 {
     return CloneWithJARFileInternal(jarFile, eHonorRef, result);
 }
 nsresult
 nsJARURI::CloneWithJARFileInternal(nsIURI *jarFile,
                                    nsJARURI::RefHandlingEnum refHandlingMode,
                                    nsIJARURI **result)
 {
     if (!jarFile) {
         return NS_ERROR_INVALID_ARG;
     }
     nsresult rv;
     nsCOMPtr<nsIURI> newJARFile;
     rv = jarFile->Clone(getter_AddRefs(newJARFile));
     if (NS_FAILED(rv)) return rv;
     NS_TryToSetImmutable(newJARFile);
     nsCOMPtr<nsIURI> newJAREntryURI;
     rv = refHandlingMode == eHonorRef ?
         mJAREntry->Clone(getter_AddRefs(newJAREntryURI)) :
         mJAREntry->CloneIgnoringRef(getter_AddRefs(newJAREntryURI));
     if (NS_FAILED(rv)) return rv;
     nsCOMPtr<nsIURL> newJAREntry(do_QueryInterface(newJAREntryURI));
     NS_ASSERTION(newJAREntry, "This had better QI to nsIURL!");
     nsJARURI* uri = new nsJARURI();
     NS_ADDREF(uri);
     uri->mJARFile = newJARFile;
     uri->mJAREntry = newJAREntry;
     *result = uri;
     return NS_OK;
 }
 ////////////////////////////////////////////////////////////////////////////////
 NS_IMETHODIMP
 nsJARURI::GetInnerURI(nsIURI **uri)
 {
     return NS_EnsureSafeToReturn(mJARFile, uri);
 }
 NS_IMETHODIMP
 nsJARURI::GetInnermostURI(nsIURI** uri)
 {
     return NS_ImplGetInnermostURI(this, uri);
 }
 ////////////////////////////////////////////////////////////////////////////////
 // nsIIPCSerializableURI methods:
 void
 nsJARURI::Serialize(URIParams& aParams)
 {
     JARURIParams params;
     SerializeURI(mJARFile, params.jarFile());
     SerializeURI(mJAREntry, params.jarEntry());
     params.charset() = mCharsetHint;
     aParams = params;
 }
 bool
 nsJARURI::Deserialize(const URIParams& aParams)
 {
     if (aParams.type() != URIParams::TJARURIParams) {
         NS_ERROR("Received unknown parameters from the other process!");
         return false;
     }
     const JARURIParams& params = aParams.get_JARURIParams();
     nsCOMPtr<nsIURI> file = DeserializeURI(params.jarFile());
     if (!file) {
         NS_ERROR("Couldn't deserialize jar file URI!");
         return false;
     }
     nsCOMPtr<nsIURI> entry = DeserializeURI(params.jarEntry());
     if (!entry) {
         NS_ERROR("Couldn't deserialize jar entry URI!");
         return false;
     }
     nsCOMPtr<nsIURL> entryURL = do_QueryInterface(entry);
     if (!entryURL) {
         NS_ERROR("Couldn't QI jar entry URI to nsIURL!");
         return false;
     }
     mJARFile.swap(file);
     mJAREntry.swap(entryURL);
     mCharsetHint = params.charset();
     return true;
 }

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modules/libjar/nsJARURI.cpp@b8a032363ba2 (annotated)

modules/libjar/nsJARURI.cpp