зеркало из https://github.com/mozilla/gecko-dev.git
656 строки
18 KiB
C++
656 строки
18 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Util.h"
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#include "ManifestParser.h"
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#include <string.h>
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#include "prio.h"
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#include "prprf.h"
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#if defined(XP_WIN)
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#include <windows.h>
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#elif defined(MOZ_WIDGET_COCOA)
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#include <CoreServices/CoreServices.h>
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#elif defined(MOZ_WIDGET_GTK)
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#include <gtk/gtk.h>
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#endif
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#ifdef MOZ_WIDGET_ANDROID
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#include "AndroidBridge.h"
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#endif
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#include "mozilla/Services.h"
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#include "nsCRT.h"
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#include "nsConsoleMessage.h"
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#include "nsTextFormatter.h"
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#include "nsVersionComparator.h"
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#include "nsXPCOMCIDInternal.h"
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#include "nsIConsoleService.h"
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#include "nsIScriptError.h"
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#include "nsIXULAppInfo.h"
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#include "nsIXULRuntime.h"
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using namespace mozilla;
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struct ManifestDirective
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{
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const char* directive;
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int argc;
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// Some directives should only be delivered for NS_COMPONENT_LOCATION
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// manifests.
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bool componentonly;
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bool ischrome;
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bool allowbootstrap;
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// The platform/contentaccessible flags only apply to content directives.
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bool contentflags;
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// Function to handle this directive. This isn't a union because C++ still
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// hasn't learned how to initialize unions in a sane way.
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void (nsComponentManagerImpl::*mgrfunc)
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(nsComponentManagerImpl::ManifestProcessingContext& cx,
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int lineno, char *const * argv);
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void (nsChromeRegistry::*regfunc)
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(nsChromeRegistry::ManifestProcessingContext& cx,
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int lineno, char *const *argv,
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bool platform, bool contentaccessible);
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bool isContract;
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};
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static const ManifestDirective kParsingTable[] = {
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{ "manifest", 1, false, true, true, false,
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&nsComponentManagerImpl::ManifestManifest, NULL },
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{ "binary-component", 1, true, false, false, false,
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&nsComponentManagerImpl::ManifestBinaryComponent, NULL },
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{ "interfaces", 1, true, false, false, false,
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&nsComponentManagerImpl::ManifestXPT, NULL },
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{ "component", 2, true, false, false, false,
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&nsComponentManagerImpl::ManifestComponent, NULL },
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{ "contract", 2, true, false, false, false,
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&nsComponentManagerImpl::ManifestContract, NULL, true},
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{ "category", 3, true, false, false, false,
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&nsComponentManagerImpl::ManifestCategory, NULL },
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{ "content", 2, true, true, true, true,
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NULL, &nsChromeRegistry::ManifestContent },
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{ "locale", 3, true, true, true, false,
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NULL, &nsChromeRegistry::ManifestLocale },
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{ "skin", 3, false, true, true, false,
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NULL, &nsChromeRegistry::ManifestSkin },
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{ "overlay", 2, true, true, false, false,
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NULL, &nsChromeRegistry::ManifestOverlay },
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{ "style", 2, false, true, false, false,
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NULL, &nsChromeRegistry::ManifestStyle },
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{ "override", 2, true, true, true, false,
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NULL, &nsChromeRegistry::ManifestOverride },
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{ "resource", 2, true, true, false, false,
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NULL, &nsChromeRegistry::ManifestResource }
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};
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static const char kWhitespace[] = "\t ";
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static bool IsNewline(char c)
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{
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return c == '\n' || c == '\r';
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}
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namespace {
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struct AutoPR_smprintf_free
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{
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AutoPR_smprintf_free(char* buf)
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: mBuf(buf)
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{
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}
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~AutoPR_smprintf_free()
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{
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if (mBuf)
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PR_smprintf_free(mBuf);
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}
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operator char*() const {
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return mBuf;
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}
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char* mBuf;
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};
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} // anonymous namespace
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void LogMessage(const char* aMsg, ...)
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{
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nsCOMPtr<nsIConsoleService> console =
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do_GetService(NS_CONSOLESERVICE_CONTRACTID);
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if (!console)
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return;
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va_list args;
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va_start(args, aMsg);
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AutoPR_smprintf_free formatted(PR_vsmprintf(aMsg, args));
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va_end(args);
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nsCOMPtr<nsIConsoleMessage> error =
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new nsConsoleMessage(NS_ConvertUTF8toUTF16(formatted).get());
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console->LogMessage(error);
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}
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void LogMessageWithContext(FileLocation &aFile,
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uint32_t aLineNumber, const char* aMsg, ...)
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{
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va_list args;
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va_start(args, aMsg);
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AutoPR_smprintf_free formatted(PR_vsmprintf(aMsg, args));
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va_end(args);
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if (!formatted)
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return;
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nsCString file;
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aFile.GetURIString(file);
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nsCOMPtr<nsIScriptError> error =
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do_CreateInstance(NS_SCRIPTERROR_CONTRACTID);
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if (!error) {
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// This can happen early in component registration. Fall back to a
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// generic console message.
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LogMessage("Warning: in '%s', line %i: %s", file.get(),
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aLineNumber, (char*) formatted);
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return;
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}
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nsCOMPtr<nsIConsoleService> console =
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do_GetService(NS_CONSOLESERVICE_CONTRACTID);
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if (!console)
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return;
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nsresult rv = error->Init(NS_ConvertUTF8toUTF16(formatted),
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NS_ConvertUTF8toUTF16(file), EmptyString(),
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aLineNumber, 0, nsIScriptError::warningFlag,
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"chrome registration");
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if (NS_FAILED(rv))
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return;
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console->LogMessage(error);
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}
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/**
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* Check for a modifier flag of the following forms:
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* "flag" (same as "true")
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* "flag=yes|true|1"
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* "flag="no|false|0"
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* @param aFlag The flag to compare.
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* @param aData The tokenized data to check; this is lowercased
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* before being passed in.
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* @param aResult If the flag is found, the value is assigned here.
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* @return Whether the flag was handled.
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*/
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static bool
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CheckFlag(const nsSubstring& aFlag, const nsSubstring& aData, bool& aResult)
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{
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if (!StringBeginsWith(aData, aFlag))
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return false;
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if (aFlag.Length() == aData.Length()) {
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// the data is simply "flag", which is the same as "flag=yes"
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aResult = true;
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return true;
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}
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if (aData.CharAt(aFlag.Length()) != '=') {
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// the data is "flag2=", which is not anything we care about
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return false;
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}
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if (aData.Length() == aFlag.Length() + 1) {
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aResult = false;
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return true;
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}
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switch (aData.CharAt(aFlag.Length() + 1)) {
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case '1':
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case 't': //true
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case 'y': //yes
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aResult = true;
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return true;
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case '0':
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case 'f': //false
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case 'n': //no
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aResult = false;
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return true;
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}
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return false;
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}
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enum TriState {
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eUnspecified,
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eBad,
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eOK
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};
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/**
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* Check for a modifier flag of the following form:
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* "flag=string"
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* "flag!=string"
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* @param aFlag The flag to compare.
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* @param aData The tokenized data to check; this is lowercased
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* before being passed in.
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* @param aValue The value that is expected.
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* @param aResult If this is "ok" when passed in, this is left alone.
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* Otherwise if the flag is found it is set to eBad or eOK.
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* @return Whether the flag was handled.
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*/
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static bool
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CheckStringFlag(const nsSubstring& aFlag, const nsSubstring& aData,
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const nsSubstring& aValue, TriState& aResult)
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{
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if (aData.Length() < aFlag.Length() + 1)
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return false;
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if (!StringBeginsWith(aData, aFlag))
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return false;
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bool comparison = true;
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if (aData[aFlag.Length()] != '=') {
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if (aData[aFlag.Length()] == '!' &&
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aData.Length() >= aFlag.Length() + 2 &&
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aData[aFlag.Length() + 1] == '=')
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comparison = false;
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else
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return false;
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}
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if (aResult != eOK) {
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nsDependentSubstring testdata = Substring(aData, aFlag.Length() + (comparison ? 1 : 2));
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if (testdata.Equals(aValue))
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aResult = comparison ? eOK : eBad;
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else
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aResult = comparison ? eBad : eOK;
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}
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return true;
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}
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/**
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* Check for a modifier flag of the following form:
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* "flag=version"
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* "flag<=version"
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* "flag<version"
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* "flag>=version"
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* "flag>version"
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* @param aFlag The flag to compare.
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* @param aData The tokenized data to check; this is lowercased
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* before being passed in.
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* @param aValue The value that is expected. If this is empty then no
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* comparison will match.
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* @param aResult If this is eOK when passed in, this is left alone.
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* Otherwise if the flag is found it is set to eBad or eOK.
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* @return Whether the flag was handled.
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*/
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#define COMPARE_EQ 1 << 0
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#define COMPARE_LT 1 << 1
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#define COMPARE_GT 1 << 2
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static bool
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CheckVersionFlag(const nsString& aFlag, const nsString& aData,
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const nsString& aValue, TriState& aResult)
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{
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if (aData.Length() < aFlag.Length() + 2)
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return false;
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if (!StringBeginsWith(aData, aFlag))
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return false;
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if (aValue.Length() == 0) {
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if (aResult != eOK)
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aResult = eBad;
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return true;
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}
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uint32_t comparison;
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nsAutoString testdata;
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switch (aData[aFlag.Length()]) {
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case '=':
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comparison = COMPARE_EQ;
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testdata = Substring(aData, aFlag.Length() + 1);
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break;
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case '<':
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if (aData[aFlag.Length() + 1] == '=') {
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comparison = COMPARE_EQ | COMPARE_LT;
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testdata = Substring(aData, aFlag.Length() + 2);
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}
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else {
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comparison = COMPARE_LT;
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testdata = Substring(aData, aFlag.Length() + 1);
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}
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break;
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case '>':
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if (aData[aFlag.Length() + 1] == '=') {
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comparison = COMPARE_EQ | COMPARE_GT;
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testdata = Substring(aData, aFlag.Length() + 2);
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}
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else {
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comparison = COMPARE_GT;
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testdata = Substring(aData, aFlag.Length() + 1);
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}
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break;
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default:
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return false;
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}
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if (testdata.Length() == 0)
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return false;
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if (aResult != eOK) {
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int32_t c = mozilla::CompareVersions(NS_ConvertUTF16toUTF8(aValue).get(),
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NS_ConvertUTF16toUTF8(testdata).get());
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if ((c == 0 && comparison & COMPARE_EQ) ||
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(c < 0 && comparison & COMPARE_LT) ||
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(c > 0 && comparison & COMPARE_GT))
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aResult = eOK;
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else
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aResult = eBad;
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}
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return true;
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}
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// In-place conversion of ascii characters to lower case
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static void
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ToLowerCase(char* token)
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{
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for (; *token; ++token)
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*token = NS_ToLower(*token);
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}
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namespace {
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struct CachedDirective
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{
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int lineno;
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char* argv[4];
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};
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} // anonymous namespace
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void
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ParseManifest(NSLocationType type, FileLocation &file, char* buf, bool aChromeOnly)
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{
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nsComponentManagerImpl::ManifestProcessingContext mgrcx(type, file, aChromeOnly);
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nsChromeRegistry::ManifestProcessingContext chromecx(type, file);
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nsresult rv;
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NS_NAMED_LITERAL_STRING(kPlatform, "platform");
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NS_NAMED_LITERAL_STRING(kContentAccessible, "contentaccessible");
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NS_NAMED_LITERAL_STRING(kApplication, "application");
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NS_NAMED_LITERAL_STRING(kAppVersion, "appversion");
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NS_NAMED_LITERAL_STRING(kGeckoVersion, "platformversion");
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NS_NAMED_LITERAL_STRING(kOs, "os");
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NS_NAMED_LITERAL_STRING(kOsVersion, "osversion");
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NS_NAMED_LITERAL_STRING(kABI, "abi");
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#if defined(MOZ_WIDGET_ANDROID)
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NS_NAMED_LITERAL_STRING(kTablet, "tablet");
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#endif
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// Obsolete
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NS_NAMED_LITERAL_STRING(kXPCNativeWrappers, "xpcnativewrappers");
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nsAutoString appID;
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nsAutoString appVersion;
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nsAutoString geckoVersion;
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nsAutoString osTarget;
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nsAutoString abi;
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nsCOMPtr<nsIXULAppInfo> xapp (do_GetService(XULAPPINFO_SERVICE_CONTRACTID));
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if (xapp) {
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nsAutoCString s;
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rv = xapp->GetID(s);
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if (NS_SUCCEEDED(rv))
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CopyUTF8toUTF16(s, appID);
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rv = xapp->GetVersion(s);
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if (NS_SUCCEEDED(rv))
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CopyUTF8toUTF16(s, appVersion);
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rv = xapp->GetPlatformVersion(s);
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if (NS_SUCCEEDED(rv))
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CopyUTF8toUTF16(s, geckoVersion);
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nsCOMPtr<nsIXULRuntime> xruntime (do_QueryInterface(xapp));
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if (xruntime) {
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rv = xruntime->GetOS(s);
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if (NS_SUCCEEDED(rv)) {
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ToLowerCase(s);
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CopyUTF8toUTF16(s, osTarget);
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}
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rv = xruntime->GetXPCOMABI(s);
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if (NS_SUCCEEDED(rv) && osTarget.Length()) {
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ToLowerCase(s);
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CopyUTF8toUTF16(s, abi);
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abi.Insert(PRUnichar('_'), 0);
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abi.Insert(osTarget, 0);
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}
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}
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}
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nsAutoString osVersion;
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#if defined(XP_WIN)
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OSVERSIONINFO info = { sizeof(OSVERSIONINFO) };
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if (GetVersionEx(&info)) {
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nsTextFormatter::ssprintf(osVersion, NS_LITERAL_STRING("%ld.%ld").get(),
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info.dwMajorVersion,
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info.dwMinorVersion);
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}
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#elif defined(MOZ_WIDGET_COCOA)
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SInt32 majorVersion, minorVersion;
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if ((Gestalt(gestaltSystemVersionMajor, &majorVersion) == noErr) &&
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(Gestalt(gestaltSystemVersionMinor, &minorVersion) == noErr)) {
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nsTextFormatter::ssprintf(osVersion, NS_LITERAL_STRING("%ld.%ld").get(),
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majorVersion,
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minorVersion);
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}
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#elif defined(MOZ_WIDGET_GTK2)
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nsTextFormatter::ssprintf(osVersion, NS_LITERAL_STRING("%ld.%ld").get(),
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gtk_major_version,
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gtk_minor_version);
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#elif defined(MOZ_WIDGET_ANDROID)
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bool isTablet = false;
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if (mozilla::AndroidBridge::Bridge()) {
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mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build$VERSION", "RELEASE", osVersion);
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isTablet = mozilla::AndroidBridge::Bridge()->IsTablet();
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}
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#endif
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// Because contracts must be registered after CIDs, we save and process them
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// at the end.
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nsTArray<CachedDirective> contracts;
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char *token;
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char *newline = buf;
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uint32_t line = 0;
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// outer loop tokenizes by newline
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while (*newline) {
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while (*newline && IsNewline(*newline)) {
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++newline;
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++line;
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}
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if (!*newline)
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break;
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token = newline;
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while (*newline && !IsNewline(*newline))
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++newline;
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if (*newline) {
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*newline = '\0';
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++newline;
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}
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++line;
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if (*token == '#') // ignore lines that begin with # as comments
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continue;
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char *whitespace = token;
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token = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
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if (!token) continue;
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const ManifestDirective* directive = NULL;
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for (const ManifestDirective* d = kParsingTable;
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d < ArrayEnd(kParsingTable);
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++d) {
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if (!strcmp(d->directive, token)) {
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directive = d;
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break;
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}
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}
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if (!directive) {
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LogMessageWithContext(file, line,
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"Ignoring unrecognized chrome manifest directive '%s'.",
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token);
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continue;
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}
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if (!directive->allowbootstrap && NS_BOOTSTRAPPED_LOCATION == type) {
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LogMessageWithContext(file, line,
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"Bootstrapped manifest not allowed to use '%s' directive.",
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token);
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continue;
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}
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if (directive->componentonly && NS_SKIN_LOCATION == type) {
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LogMessageWithContext(file, line,
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"Skin manifest not allowed to use '%s' directive.",
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|
token);
|
|
continue;
|
|
}
|
|
|
|
NS_ASSERTION(directive->argc < 4, "Need to reset argv array length");
|
|
char* argv[4];
|
|
for (int i = 0; i < directive->argc; ++i)
|
|
argv[i] = nsCRT::strtok(whitespace, kWhitespace, &whitespace);
|
|
|
|
if (!argv[directive->argc - 1]) {
|
|
LogMessageWithContext(file, line,
|
|
"Not enough arguments for chrome manifest directive '%s', expected %i.",
|
|
token, directive->argc);
|
|
continue;
|
|
}
|
|
|
|
bool ok = true;
|
|
TriState stAppVersion = eUnspecified;
|
|
TriState stGeckoVersion = eUnspecified;
|
|
TriState stApp = eUnspecified;
|
|
TriState stOsVersion = eUnspecified;
|
|
TriState stOs = eUnspecified;
|
|
TriState stABI = eUnspecified;
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
TriState stTablet = eUnspecified;
|
|
#endif
|
|
bool platform = false;
|
|
bool contentAccessible = false;
|
|
|
|
while (NULL != (token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) && ok) {
|
|
ToLowerCase(token);
|
|
NS_ConvertASCIItoUTF16 wtoken(token);
|
|
|
|
if (CheckStringFlag(kApplication, wtoken, appID, stApp) ||
|
|
CheckStringFlag(kOs, wtoken, osTarget, stOs) ||
|
|
CheckStringFlag(kABI, wtoken, abi, stABI) ||
|
|
CheckVersionFlag(kOsVersion, wtoken, osVersion, stOsVersion) ||
|
|
CheckVersionFlag(kAppVersion, wtoken, appVersion, stAppVersion) ||
|
|
CheckVersionFlag(kGeckoVersion, wtoken, geckoVersion, stGeckoVersion))
|
|
continue;
|
|
|
|
#if defined(MOZ_WIDGET_ANDROID)
|
|
bool tablet = false;
|
|
if (CheckFlag(kTablet, wtoken, tablet)) {
|
|
stTablet = (tablet == isTablet) ? eOK : eBad;
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
if (directive->contentflags &&
|
|
(CheckFlag(kPlatform, wtoken, platform) ||
|
|
CheckFlag(kContentAccessible, wtoken, contentAccessible)))
|
|
continue;
|
|
|
|
bool xpcNativeWrappers = true; // Dummy for CheckFlag.
|
|
if (CheckFlag(kXPCNativeWrappers, wtoken, xpcNativeWrappers)) {
|
|
LogMessageWithContext(file, line,
|
|
"Ignoring obsolete chrome registration modifier '%s'.",
|
|
token);
|
|
continue;
|
|
}
|
|
|
|
LogMessageWithContext(file, line,
|
|
"Unrecognized chrome manifest modifier '%s'.",
|
|
token);
|
|
ok = false;
|
|
}
|
|
|
|
if (!ok ||
|
|
stApp == eBad ||
|
|
stAppVersion == eBad ||
|
|
stGeckoVersion == eBad ||
|
|
stOs == eBad ||
|
|
stOsVersion == eBad ||
|
|
#ifdef MOZ_WIDGET_ANDROID
|
|
stTablet == eBad ||
|
|
#endif
|
|
stABI == eBad)
|
|
continue;
|
|
|
|
if (directive->regfunc) {
|
|
if (GeckoProcessType_Default != XRE_GetProcessType())
|
|
continue;
|
|
|
|
if (!nsChromeRegistry::gChromeRegistry) {
|
|
nsCOMPtr<nsIChromeRegistry> cr =
|
|
mozilla::services::GetChromeRegistryService();
|
|
if (!nsChromeRegistry::gChromeRegistry) {
|
|
LogMessageWithContext(file, line,
|
|
"Chrome registry isn't available yet.");
|
|
continue;
|
|
}
|
|
}
|
|
|
|
(nsChromeRegistry::gChromeRegistry->*(directive->regfunc))
|
|
(chromecx, line, argv, platform, contentAccessible);
|
|
}
|
|
else if (directive->ischrome || !aChromeOnly) {
|
|
if (directive->isContract) {
|
|
CachedDirective* cd = contracts.AppendElement();
|
|
cd->lineno = line;
|
|
cd->argv[0] = argv[0];
|
|
cd->argv[1] = argv[1];
|
|
}
|
|
else
|
|
(nsComponentManagerImpl::gComponentManager->*(directive->mgrfunc))
|
|
(mgrcx, line, argv);
|
|
}
|
|
}
|
|
|
|
for (uint32_t i = 0; i < contracts.Length(); ++i) {
|
|
CachedDirective& d = contracts[i];
|
|
nsComponentManagerImpl::gComponentManager->ManifestContract
|
|
(mgrcx, d.lineno, d.argv);
|
|
}
|
|
}
|