зеркало из https://github.com/mozilla/gecko-dev.git
Fix for bug 113927. Remove use of nsIFileSpec's when reading preferences files. r=alecf, sr=sfraser.
This commit is contained in:
bnesse%netscape.com
Родитель
8435bc1af2
Коммит
e16686b028
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@ -40,6 +40,7 @@
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#include "jsapi.h"
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#include "nsAppDirectoryServiceDefs.h"
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#include "nsDirectoryServiceDefs.h"
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#include "nsIFileStreams.h"
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#include "nsIObserverService.h"
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#include "nsPrefBranch.h"
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#include "nsXPIDLString.h"
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@ -72,8 +73,6 @@ class nsIFileSpec; // needed for prefapi_private_data.h inclusion
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static nsresult nsIFileToFileSpec(nsIFile* inFile, nsIFileSpec **aFileSpec);
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static nsresult openPrefFile(nsIFile* aFile, PRBool aIsErrorFatal, PRBool aVerifyHash,
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PRBool aIsGlobalContext, PRBool aSkipFirstLine);
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static nsresult openPrefFileSpec(nsIFileSpec* aFilespec, PRBool aIsErrorFatal, PRBool aVerifyHash,
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PRBool aIsGlobalContext, PRBool aSkipFirstLine);
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static nsresult savePrefFile(nsIFile* aFile);
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@ -424,76 +423,60 @@ nsresult nsPrefService::useUserPrefFile()
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static nsresult openPrefFile(nsIFile* aFile, PRBool aIsErrorFatal, PRBool aVerifyHash,
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PRBool aIsGlobalContext, PRBool aSkipFirstLine)
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{
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nsCOMPtr<nsIFileSpec> fileSpec;
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nsCOMPtr<nsIInputStream> inStr;
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char *readBuf;
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PRInt64 llFileSize;
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PRUint32 fileSize;
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nsresult rv;
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rv = nsIFileToFileSpec(aFile, getter_AddRefs(fileSpec));
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if (NS_SUCCEEDED(rv)) {
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JS_BeginRequest(gMochaContext);
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rv = openPrefFileSpec(fileSpec, aIsErrorFatal, aVerifyHash, aIsGlobalContext, aSkipFirstLine);
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JS_EndRequest(gMochaContext);
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}
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return rv;
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}
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static nsresult openPrefFileSpec(nsIFileSpec* aFilespec, PRBool aIsErrorFatal, PRBool aVerifyHash,
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PRBool aIsGlobalContext, PRBool aSkipFirstLine)
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{
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nsresult rv;
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char* readBuf;
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#if MOZ_TIMELINE
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nsXPIDLCString str;
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aFilespec->GetNativePath(getter_Copies(str));
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NS_TIMELINE_MARK_FUNCTION1("load pref file", str.get());
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{
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nsXPIDLCString str;
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aFile->GetPath(getter_Copies(str));
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NS_TIMELINE_MARK_FUNCTION1("load pref file", str.get());
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}
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#endif
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// TODO: Validate this entire function, I seriously doubt it does what it is
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// supposed to. Note for instance that gErrorOpeningUserPrefs will only
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// be set if the evaluation of the config script fails AND aIsErrorFatal
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// is set to PR_TRUE... the readBuf test is irrelavent because it will
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// bail at the GetFileContents call if it fails.
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// TODO: Convert the rest of this code to nsIFile and avoid this conversion to nsIFileSpec
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rv = aFilespec->ResolveSymlink();
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rv = aFile->GetFileSize(&llFileSize);
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if (NS_FAILED(rv))
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return rv;
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return rv;
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LL_L2UI(fileSize, llFileSize); // Converting 64 bit structure to unsigned int
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if (!Exists(aFilespec))
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return NS_ERROR_FILE_NOT_FOUND;
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rv = NS_NewLocalFileInputStream(getter_AddRefs(inStr), aFile);
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if (NS_FAILED(rv))
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return rv;
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rv = aFilespec->GetFileContents(&readBuf);
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if (NS_FAILED(rv))
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return rv;
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readBuf = (char *)PR_Malloc(fileSize);
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if (!readBuf)
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return NS_ERROR_OUT_OF_MEMORY;
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long fileLength = PL_strlen(readBuf);
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if (aVerifyHash) {
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const int obscure_value = 13;
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// Unobscure file by subtracting some value from every char - old value was 7
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long i;
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for (i = 0; i < fileLength; i++)
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readBuf[i] -= obscure_value;
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}
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JS_BeginRequest(gMochaContext);
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PRUint32 amtRead = 0;
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rv = inStr->Read(readBuf, fileSize, &amtRead);
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NS_ASSERTION((amtRead == fileSize), "failed to read the entire prefs file!!");
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if (NS_SUCCEEDED(rv)) {
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if (!PREF_EvaluateConfigScript(readBuf, fileLength, nsnull, aIsGlobalContext, PR_TRUE,
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if (aVerifyHash) {
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// Unobscure file by subtracting some value from every char - old value was 7
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const int obscure_value = 13;
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for (PRUint32 i = 0; i < amtRead; i++)
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readBuf[i] -= obscure_value;
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}
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if (!PREF_EvaluateConfigScript(readBuf, amtRead, nsnull, aIsGlobalContext, PR_TRUE,
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aSkipFirstLine))
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{
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rv = NS_ERROR_FAILURE;
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if (aVerifyHash) {
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PR_Free(readBuf);
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return rv;
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}
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if (aIsErrorFatal)
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// If the user prefs file exists but generates an error,
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// don't clobber the file when we try to save it
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gErrorOpeningUserPrefs = PR_TRUE;
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}
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}
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PR_Free(readBuf);
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JS_EndRequest(gMochaContext);
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// If the user prefs file exists but generates an error,
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// don't clobber the file when we try to save it
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if ((!readBuf || rv != NS_OK) && aIsErrorFatal)
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gErrorOpeningUserPrefs = PR_TRUE;
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return rv;
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return rv;
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}
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static nsresult savePrefFile(nsIFile* aFile)
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@ -575,8 +558,8 @@ inplaceSortCallback(const void *data1, const void *data2, void *privateData)
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{
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char *name1 = nsnull;
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char *name2 = nsnull;
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nsIFileSpec *file1= *(nsIFileSpec **)data1;
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nsIFileSpec *file2= *(nsIFileSpec **)data2;
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nsIFile *file1= *(nsIFile **)data1;
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nsIFile *file2= *(nsIFile **)data2;
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nsresult rv;
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int sortResult = 0;
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@ -606,18 +589,11 @@ extern "C" JSBool pref_InitInitialObjects()
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// appropriate TEXT resources
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//----------------------------------------------------------------------------------------
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{
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nsresult rv;
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PRBool exists;
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nsCOMPtr<nsIFile> aFile;
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nsCOMPtr <nsIFileSpec> defaultPrefDir;
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nsCOMPtr<nsIFile> defaultPrefDir;
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nsresult rv;
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PRBool hasMoreElements;
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rv = NS_GetSpecialDirectory(NS_APP_PREF_DEFAULTS_50_DIR, getter_AddRefs(aFile));
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if (NS_FAILED(rv))
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return JS_FALSE;
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rv = nsIFileToFileSpec(aFile, getter_AddRefs(defaultPrefDir));
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if (NS_FAILED(rv))
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return JS_FALSE;
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static const char* specialFiles[] = {
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"initpref.js"
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#ifdef NS_DEBUG
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@ -640,138 +616,97 @@ extern "C" JSBool pref_InitInitialObjects()
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#endif
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};
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int k=0;
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nsIFileSpec **defaultPrefFiles = (nsIFileSpec **)nsMemory::Alloc(INITIAL_MAX_DEFAULT_PREF_FILES * sizeof(nsIFileSpec *));
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rv = NS_GetSpecialDirectory(NS_APP_PREF_DEFAULTS_50_DIR, getter_AddRefs(defaultPrefDir));
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if (NS_FAILED(rv))
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return JS_FALSE;
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nsIFile **defaultPrefFiles = (nsIFile **)nsMemory::Alloc(INITIAL_MAX_DEFAULT_PREF_FILES * sizeof(nsIFile *));
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int maxDefaultPrefFiles = INITIAL_MAX_DEFAULT_PREF_FILES;
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int numFiles = 0;
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// Parse all the random files that happen to be in the components directory.
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nsCOMPtr<nsIDirectoryIterator> dirIterator;
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rv = nsComponentManager::CreateInstance(
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(const char*)NS_DIRECTORYITERATOR_CONTRACTID,
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(nsISupports*)nsnull,
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(const nsID&)NS_GET_IID(nsIDirectoryIterator),
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getter_AddRefs(dirIterator));
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NS_ASSERTION(NS_SUCCEEDED(rv), "ERROR: Could not make a directory iterator.");
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if (!dirIterator || NS_FAILED(dirIterator->Init(defaultPrefDir, PR_TRUE)))
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return JS_FALSE;
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// Get any old child of the components directory. Warning: aliases get resolved, so
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// SetLeafName will not work here.
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nsCOMPtr<nsIFile> aFile2;
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rv = NS_GetSpecialDirectory(NS_APP_PREF_DEFAULTS_50_DIR, getter_AddRefs(aFile2));
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if (NS_FAILED(rv))
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return JS_TRUE;
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rv = aFile2->Append((char *)specialFiles[0]);
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if (NS_FAILED(rv))
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return JS_TRUE;
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if (NS_FAILED(aFile2->Exists(&exists)))
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{
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nsCOMPtr<nsISimpleEnumerator> dirIterator;
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rv = defaultPrefDir->GetDirectoryEntries(getter_AddRefs(dirIterator));
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if (!dirIterator) {
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NS_ASSERTION(NS_SUCCEEDED(rv), "ERROR: Could not make a directory iterator.");
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return JS_FALSE;
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}
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if (exists)
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{
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rv = openPrefFile(aFile2, PR_FALSE, PR_FALSE, PR_FALSE, PR_FALSE);
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NS_ASSERTION(NS_SUCCEEDED(rv), "initpref.js not parsed successfully");
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dirIterator->HasMoreElements(&hasMoreElements);
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if (!hasMoreElements) {
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NS_ASSERTION(NS_SUCCEEDED(rv), "ERROR: Prefs directory is empty.");
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return JS_FALSE;
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}
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// Read in initpref.js.
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// Warning: aliases get resolved, so SetLeafName will not work here.
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rv = defaultPrefDir->Clone(getter_AddRefs(aFile));
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if (NS_FAILED(rv))
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return JS_FALSE;
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rv = aFile->Append((char *)specialFiles[0]);
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if (NS_FAILED(rv))
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return JS_FALSE;
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rv = openPrefFile(aFile, PR_FALSE, PR_FALSE, PR_FALSE, PR_FALSE);
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NS_ASSERTION(NS_SUCCEEDED(rv), "initpref.js not parsed successfully");
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// Keep this child
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#ifdef DEBUG_prefs
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printf("Parsing default JS files.\n");
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#endif /* DEBUG_prefs */
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for (; Exists(dirIterator); dirIterator->Next())
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{
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nsCOMPtr<nsIFileSpec> child;
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while (hasMoreElements) {
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PRBool shouldParse = PR_TRUE;
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if NS_FAILED(dirIterator->GetCurrentSpec(getter_AddRefs(child)))
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continue;
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char* leafName;
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rv = child->GetLeafName(&leafName);
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if (NS_SUCCEEDED(rv))
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{
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dirIterator->GetNext(getter_AddRefs(aFile));
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dirIterator->HasMoreElements(&hasMoreElements);
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rv = aFile->GetLeafName(&leafName);
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if (NS_SUCCEEDED(rv)) {
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// Skip non-js files
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if (PL_strstr(leafName, ".js") + PL_strlen(".js") != leafName + PL_strlen(leafName))
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shouldParse = PR_FALSE;
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// Skip files in the special list.
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if (shouldParse)
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{
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for (int j = 0; j < (int) (sizeof(specialFiles) / sizeof(char*)); j++)
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if (PL_strcmp(leafName, specialFiles[j]) == 0)
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if (shouldParse) {
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for (int j = 0; j < (int) (sizeof(specialFiles) / sizeof(char *)); j++)
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if (!PL_strcmp(leafName, specialFiles[j]))
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shouldParse = PR_FALSE;
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}
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if (shouldParse)
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{
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#ifdef DEBUG_prefs
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printf("Adding %s to the list to be sorted\n", leafName);
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#endif /* DEBUG_prefs */
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rv = NS_NewFileSpec(&(defaultPrefFiles[numFiles]));
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NS_ASSERTION(NS_SUCCEEDED(rv), "failed to create a file spec");
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if (NS_SUCCEEDED(rv) && defaultPrefFiles[numFiles]) {
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rv = defaultPrefFiles[numFiles]->FromFileSpec(child);
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NS_ASSERTION(NS_SUCCEEDED(rv),"failed to set the spec");
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if (NS_SUCCEEDED(rv)) {
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numFiles++;
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}
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if (shouldParse) {
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rv = aFile->Clone(&(defaultPrefFiles[numFiles]));
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if NS_SUCCEEDED(rv) {
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++numFiles;
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if (numFiles == maxDefaultPrefFiles) {
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// double the size of the array
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maxDefaultPrefFiles *= 2;
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defaultPrefFiles = (nsIFileSpec **)nsMemory::Realloc(defaultPrefFiles, maxDefaultPrefFiles * sizeof(nsIFileSpec *));
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defaultPrefFiles = (nsIFile **)nsMemory::Realloc(defaultPrefFiles, maxDefaultPrefFiles * sizeof(nsIFile *));
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}
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}
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}
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if (leafName) nsCRT::free((char*)leafName);
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if (leafName)
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nsCRT::free((char*)leafName);
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}
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}
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#ifdef DEBUG_prefs
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printf("Sort defaultPrefFiles. we need them sorted so all-ns.js will override all.js (where override == parsed later)\n");
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#endif /* DEBUG_prefs */
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NS_QuickSort((void *)defaultPrefFiles, numFiles,sizeof(nsIFileSpec *), inplaceSortCallback, nsnull);
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};
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for (k=0;k<numFiles;k++) {
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char* currentLeafName = nsnull;
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if (defaultPrefFiles[k]) {
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rv = defaultPrefFiles[k]->GetLeafName(¤tLeafName);
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#ifdef DEBUG_prefs
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printf("Parsing %s\n", currentLeafName);
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#endif /* DEBUG_prefs */
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if (currentLeafName) nsCRT::free((char*)currentLeafName);
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NS_QuickSort((void *)defaultPrefFiles, numFiles, sizeof(nsIFile *), inplaceSortCallback, nsnull);
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if (NS_SUCCEEDED(rv)) {
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rv = openPrefFileSpec(defaultPrefFiles[k], PR_FALSE, PR_FALSE, PR_FALSE, PR_FALSE);
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NS_ASSERTION(NS_SUCCEEDED(rv), "Config file not parsed successfully");
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}
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}
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}
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for (k=0;k<numFiles;k++) {
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NS_IF_RELEASE(defaultPrefFiles[k]);
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int k;
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for (k = 0; k < numFiles; k++) {
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rv = openPrefFile(defaultPrefFiles[k], PR_FALSE, PR_FALSE, PR_FALSE, PR_FALSE);
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NS_ASSERTION(NS_SUCCEEDED(rv), "Config file not parsed successfully");
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NS_RELEASE(defaultPrefFiles[k]);
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}
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nsMemory::Free(defaultPrefFiles);
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defaultPrefFiles = nsnull;
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#ifdef DEBUG_prefs
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printf("Parsing platform-specific JS files.\n");
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#endif /* DEBUG_prefs */
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nsCOMPtr<nsIFile> aFile3;
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// Finally, parse any other special files (platform-specific ones).
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for (k = 1; k < (int) (sizeof(specialFiles) / sizeof(char*)); k++) {
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for (k = 1; k < (int) (sizeof(specialFiles) / sizeof(char *)); k++) {
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// we must get the directory every time so we can append the child
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// because SetLeafName will not work here.
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rv = NS_GetSpecialDirectory(NS_APP_PREF_DEFAULTS_50_DIR, getter_AddRefs(aFile3));
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rv = defaultPrefDir->Clone(getter_AddRefs(aFile));
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if (NS_SUCCEEDED(rv)) {
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rv = aFile3->Append((char*)specialFiles[k]);
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rv = aFile->Append((char*)specialFiles[k]);
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if (NS_SUCCEEDED(rv)) {
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#ifdef DEBUG_prefs
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printf("Parsing %s\n", specialFiles[k]);
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#endif /* DEBUG_prefs */
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if (NS_SUCCEEDED(aFile3->Exists(&exists)) && exists) {
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rv = openPrefFile(aFile3, PR_FALSE, PR_FALSE, PR_FALSE, PR_FALSE);
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NS_ASSERTION(NS_SUCCEEDED(rv), "<platform>.js was not parsed successfully");
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}
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rv = openPrefFile(aFile, PR_FALSE, PR_FALSE, PR_FALSE, PR_FALSE);
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NS_ASSERTION(NS_SUCCEEDED(rv), "<platform>.js was not parsed successfully");
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}
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}
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}
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