mirror of
https://github.com/mozilla/gecko-dev.git
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552 lines
15 KiB
C++
552 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications, Inc. Portions created by Netscape are
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* Copyright (C) 1999, Mozilla. All Rights Reserved.
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*
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* Contributor(s):
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* Adam Lock <adamlock@netscape.com>
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*/
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// BEGIN WINDOWS SPECIFIC
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#include <windows.h>
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// END WINDOWS SPECIFIC
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <vector>
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#include <string>
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#include "nsISupportsPrimitives.h"
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#include "nsXPIDLString.h"
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#include "nsID.h"
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#include "nsCOMPtr.h"
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#include "nsIRegistry.h"
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#include "nsILocalFile.h"
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extern "C" NS_EXPORT nsresult NS_RegistryGetFactory(nsIFactory** aFactory);
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inline wchar_t * A2W(const char *lpa, wchar_t *lpw,int nChars)
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{
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lpw[0] = '\0';
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// BEGIN WINDOWS SPECIFIC
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MultiByteToWideChar(CP_ACP, 0, lpa, -1, lpw, nChars);
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// END WINDOWS SPECIFIC
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return lpw;
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}
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struct factory
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{
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nsID mCID;
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std::string mLibrary;
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factory(nsID cid, const char * library) :
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mCID(cid),
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mLibrary(library)
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{
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}
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};
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struct progid2cid
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{
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std::string mProgID;
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nsID mCID;
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progid2cid(const char *progID, nsID cid) :
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mProgID(progID),
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mCID(cid)
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{
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}
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};
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struct library
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{
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std::string mFullPath;
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std::string mFile;
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library(const char *fullPath, const char *file) :
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mFullPath(fullPath),
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mFile(file)
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{
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}
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};
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// These should really be std::map types to aid searching but aren't
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std::vector<factory> listCLSIDs;
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std::vector<progid2cid> listProgIDs;
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std::vector<library> listComponents;
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// Function declarations
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PRBool ReadFileToBuffer(const char *szFile, char **ppszBuffer, long *pnBufferSize);
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int ScanBuffer(const char *pszBuffer, long nBufferSize, const void *szPattern, long nPatternSize);
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nsresult ReadComponentRegistry();
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void OutputCID(const nsID &cid);
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void OutputProgId(const char *szProgID);
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void OutputLibrary(const char *szLibrary);
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PRBool LibraryImplementsCID(const char *szLibrary, const nsID &cid);
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int main(int argc, char *argv[])
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{
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// These should be set by command switches but aren't at the moment
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PRBool bSearchForUnicodeProgIDs = PR_FALSE;
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PRBool bSearchForUnicodeLibraries = PR_FALSE;
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if (argc != 2)
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{
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fprintf(stderr, "Usage: dumpdeps <mozbindirectory>\n");
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return 1;
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}
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std::string sBinDirPath = argv[1];
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nsIServiceManager *mServiceManager;
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nsILocalFile *pBinDirPath = nsnull;
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nsresult res = NS_NewLocalFile(sBinDirPath.c_str(), &pBinDirPath);
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// Initialise XPCOM
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if (pBinDirPath == nsnull)
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{
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fprintf(stderr, "Error: Could not create object to represent mozbindirectory - is the path correct?\n");
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return 1;
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}
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NS_InitXPCOM(&mServiceManager, pBinDirPath);
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NS_RELEASE(pBinDirPath);
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// Read the component registry to fill the arrays with CLSIDs
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ReadComponentRegistry();
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// Locate all libraries and add them to the components list
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// BEGIN WINDOWS SPECIFIC
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for (int n = 0; n < 2; n++)
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{
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// Windows specific paths
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std::string sFolder;
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if (n == 0)
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{
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sFolder = sBinDirPath + "\\";
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}
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else if (n == 1)
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{
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sFolder = sBinDirPath + "\\components\\";
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}
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std::string sPattern = sFolder + "*.dll";
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WIN32_FIND_DATA findData;
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HANDLE h = FindFirstFile(sPattern.c_str(), &findData);
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if (h)
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{
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do {
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std::string fullPath = sFolder + findData.cFileName;
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listComponents.push_back(library(fullPath.c_str(), findData.cFileName));
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} while (FindNextFile(h, &findData));
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}
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FindClose(h);
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}
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// END WINDOWS SPECIFIC
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// Enumerate through all libraries looking for dependencies
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std::vector<library>::const_iterator i;
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for (i = listComponents.begin(); i != listComponents.end(); i++)
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{
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char *pszBuffer = NULL;
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long nBufferSize = 0;
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if (ReadFileToBuffer((*i).mFullPath.c_str(), &pszBuffer, &nBufferSize))
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{
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printf("Library \"%s\"\n", (*i).mFullPath.c_str());
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// Print out implements
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printf(" Implements:\n");
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// Search for CIDs implemented by this library
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std::vector<factory>::const_iterator j;
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for (j = listCLSIDs.begin(); j != listCLSIDs.end(); j++)
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{
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if (LibraryImplementsCID((*i).mFile.c_str(), (*j).mCID))
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{
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OutputCID((*j).mCID);
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}
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}
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// Print out references
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printf(" References:\n");
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// Search for CIDs not implemented by this library but referenced
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for (j = listCLSIDs.begin(); j != listCLSIDs.end(); j++)
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{
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if (!LibraryImplementsCID((*i).mFile.c_str(), (*j).mCID) &&
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ScanBuffer(pszBuffer, nBufferSize, &(*j).mCID, sizeof((*j).mCID)) == 1)
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{
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OutputCID((*j).mCID);
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}
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}
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// Search for ProgIds
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wchar_t szWTmp[1024];
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std::vector<progid2cid>::const_iterator k;
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for (k = listProgIDs.begin(); k != listProgIDs.end(); k++)
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{
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// Skip ProgIds that the library implements
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if (LibraryImplementsCID((*i).mFile.c_str(), (*k).mCID))
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{
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continue;
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}
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// Search for ANSI strings
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const char *szA = (*k).mProgID.c_str();
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int nLength = (*k).mProgID.length();
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if (ScanBuffer(pszBuffer, nBufferSize, szA, nLength) == 1)
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{
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OutputProgId(szA);
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continue;
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}
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if (bSearchForUnicodeProgIDs)
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{
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// Search for Unicode strings
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wchar_t *szW = A2W((*k).mProgID.c_str(), szWTmp, sizeof(szWTmp) / sizeof(szWTmp[0]));
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if (ScanBuffer(pszBuffer, nBufferSize, szW, nLength * sizeof(wchar_t)) == 1)
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{
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printf("UNICODE Progid\n");
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OutputProgId(szA);
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continue;
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}
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}
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}
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printf(" Statically linked to:\n");
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std::vector<library>::const_iterator l;
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for (l = listComponents.begin(); l != listComponents.end(); l++)
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{
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// Skip when the full path and the component point to the same thing
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if (i == l)
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{
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continue;
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}
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// Search for ANSI strings
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const char *szA = (*l).mFile.c_str();
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int nLength = (*l).mFile.length();
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if (ScanBuffer(pszBuffer, nBufferSize, szA, nLength) == 1)
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{
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OutputLibrary(szA);
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continue;
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}
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if (bSearchForUnicodeLibraries)
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{
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// Search for Unicode strings
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wchar_t *szW = A2W((*l).mFile.c_str(), szWTmp, sizeof(szWTmp) / sizeof(szWTmp[0]));
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if (ScanBuffer(pszBuffer, nBufferSize, szW, nLength * sizeof(wchar_t)) == 1)
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{
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printf("UNICODE library\n");
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OutputLibrary(szA);
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continue;
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}
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}
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}
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delete []pszBuffer;
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}
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}
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return 0;
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}
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// Reads a file into a big buffer and returns it
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PRBool ReadFileToBuffer(const char *szFile, char **ppszBuffer, long *pnBufferSize)
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{
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// Allocate a memory buffer to slurp up the whole file
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struct _stat srcStat;
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_stat(szFile, &srcStat);
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char *pszBuffer = new char[srcStat.st_size / sizeof(char)];
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if (pszBuffer == NULL)
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{
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printf("Error: Could not allocate buffer for file \"%s\"\n", szFile);
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return PR_FALSE;
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}
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FILE *fSrc = fopen(szFile, "rb");
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if (fSrc == NULL)
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{
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printf("Error: Could not open file \"%s\"\n", szFile);
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delete []pszBuffer;
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return PR_FALSE;
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}
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size_t sizeSrc = srcStat.st_size;
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size_t sizeRead = 0;
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// Dumb but effective
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sizeRead = fread(pszBuffer, 1, sizeSrc, fSrc);
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fclose(fSrc);
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if (sizeRead != sizeSrc)
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{
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printf("Error: Could not read all of file \"%s\"\n", szFile);
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delete []pszBuffer;
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return PR_FALSE;
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}
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*ppszBuffer = pszBuffer;
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*pnBufferSize = sizeRead;
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return PR_TRUE;
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}
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// Searchs for the specified pattern in the buffer
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int ScanBuffer(const char *pszBuffer, long nBufferSize, const void *szPattern, long nPatternSize)
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{
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// Scan through buffer, one byte at a time doing a memcmp against the
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// provided binary data.
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for (size_t i = 0; i < nBufferSize - nPatternSize; i++)
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{
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if (memcmp(&pszBuffer[i], szPattern, nPatternSize) == 0)
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{
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return 1;
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}
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}
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return 0;
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}
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// Prints a CID with the ProgId and library if they are there too.
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void OutputCID(const nsID &cid)
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{
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std::vector<progid2cid>::const_iterator i;
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for (i = listProgIDs.begin(); i != listProgIDs.end(); i++)
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{
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if (memcmp(&cid, &(*i).mCID, sizeof(nsID)) == 0)
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{
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printf(" ProgId = \"%s\"\n", (*i).mProgID.c_str());
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printf(" CLSID = %s\n", cid.ToString());
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std::vector<factory>::const_iterator j;
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for (j = listCLSIDs.begin(); j != listCLSIDs.end(); j++)
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{
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if (memcmp(&cid, &(*j).mCID, sizeof(nsID)) == 0)
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{
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printf(" Library = %s\n", (*j).mLibrary.c_str());
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}
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}
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return;
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}
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}
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printf(" CLSID = %s\n", cid.ToString());
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}
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// Outputs the ProgId with the CID and library if they are there too.
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void OutputProgId(const char *szProgID)
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{
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std::vector<progid2cid>::const_iterator i;
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for (i = listProgIDs.begin(); i != listProgIDs.end(); i++)
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{
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if (strcmp((*i).mProgID.c_str(), szProgID) == 0)
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{
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printf(" ProgId = \"%s\"\n", (*i).mProgID.c_str());
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printf(" CLSID = %s\n", (*i).mCID.ToString());
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std::vector<factory>::const_iterator j;
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for (j = listCLSIDs.begin(); j != listCLSIDs.end(); j++)
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{
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if (memcmp(&(*i).mCID, &(*j).mCID, sizeof(nsID)) == 0)
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{
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printf(" Library = %s\n", (*j).mLibrary.c_str());
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}
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}
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return;
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}
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}
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printf(" ProgID \"%s\"\n", szProgID);
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}
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// Outputs a library name
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void OutputLibrary(const char *szLibrary)
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{
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printf(" DLL \"%s\"\n", szLibrary);
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}
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// Tests whether a library implements the specified CID
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PRBool LibraryImplementsCID(const char *szLibrary, const nsID &cid)
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{
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// Search for CID - vector should really be a map, but it isn't
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std::vector<factory>::const_iterator i;
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for (i = listCLSIDs.begin(); i != listCLSIDs.end(); i++)
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{
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if (memcmp(&cid, &(*i).mCID, sizeof(nsID)) == 0)
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{
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if (strstr((*i).mLibrary.c_str(), szLibrary) != NULL)
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{
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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}
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return PR_FALSE;
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}
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// The following horrific-ness is ripped from nsComponentManager.cpp and sewn
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// back together which is why it may look nasty.
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//
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// Basically it opens the registry and finds the CIDs, libraries and ProgIDs
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// therein and adds them to some lists for easy lookup.
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nsresult ReadComponentRegistry()
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{
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nsIRegistry *mRegistry = nsnull;
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nsresult rv = NS_OK;
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// We need to create our registry. Since we are in the constructor
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// we haven't gone as far as registering the registry factory.
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// Hence, we hand create a registry.
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if (mRegistry == nsnull) {
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nsIFactory *registryFactory = nsnull;
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rv = NS_RegistryGetFactory(®istryFactory);
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if (NS_SUCCEEDED(rv))
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{
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rv = registryFactory->CreateInstance(NULL, NS_GET_IID(nsIRegistry),(void **)&mRegistry);
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if (NS_FAILED(rv)) return rv;
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NS_RELEASE(registryFactory);
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}
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}
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// Open the App Components registry. We will keep it open forever!
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rv = mRegistry->OpenWellKnownRegistry(nsIRegistry::ApplicationComponentRegistry);
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if (NS_FAILED(rv)) return rv;
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nsRegistryKey mXPCOMKey;
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nsRegistryKey mClassesKey;
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nsRegistryKey mCLSIDKey;
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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const char xpcomKeyName[]="software/mozilla/XPCOM";
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const char classesKeyName[]="progID";
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const char classIDKeyName[]="classID";
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const char componentsKeyName[]="components";
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const char componentLoadersKeyName[]="componentLoaders";
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const char xpcomComponentsKeyName[]="software/mozilla/XPCOM/components";
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const char classIDValueName[]="ClassID";
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const char classNameValueName[]="ClassName";
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const char inprocServerValueName[]="InprocServer";
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const char componentTypeValueName[]="ComponentType";
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const char nativeComponentType[]="application/x-mozilla-native";
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nsRegistryKey xpcomKey;
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rv = mRegistry->AddSubtree(nsIRegistry::Common, xpcomKeyName, &xpcomKey);
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if (NS_FAILED(rv)) return rv;
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rv = mRegistry->AddSubtree(xpcomKey, componentsKeyName, &mXPCOMKey);
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if (NS_FAILED(rv)) return rv;
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rv = mRegistry->AddSubtree(xpcomKey, classesKeyName, &mClassesKey);
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if (NS_FAILED(rv)) return rv;
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rv = mRegistry->AddSubtree(xpcomKey, classIDKeyName, &mCLSIDKey);
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if (NS_FAILED(rv)) return rv;
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// Read in all CID entries and populate the mFactories
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nsCOMPtr<nsIEnumerator> cidEnum;
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rv = mRegistry->EnumerateSubtrees( mCLSIDKey, getter_AddRefs(cidEnum));
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIRegistryEnumerator> regEnum = do_QueryInterface(cidEnum, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = regEnum->First();
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for (rv = regEnum->First();
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NS_SUCCEEDED(rv) && (regEnum->IsDone() != NS_OK);
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rv = regEnum->Next())
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{
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const char *cidString;
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nsRegistryKey cidKey;
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/*
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* CurrentItemInPlaceUTF8 will give us back a _shared_ pointer in
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* cidString. This is bad XPCOM practice. It is evil, and requires
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* great care with the relative lifetimes of cidString and regEnum.
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*
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* It is also faster, and less painful in the allocation department.
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*/
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rv = regEnum->CurrentItemInPlaceUTF8(&cidKey, &cidString);
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if (NS_FAILED(rv)) continue;
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// Create the CID entry
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nsXPIDLCString library;
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rv = mRegistry->GetStringUTF8(cidKey, inprocServerValueName,
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getter_Copies(library));
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if (NS_FAILED(rv)) continue;
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nsCID aClass;
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if (!(aClass.Parse(cidString))) continue;
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nsXPIDLCString componentType;
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if (NS_FAILED(mRegistry->GetStringUTF8(cidKey, componentTypeValueName,
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getter_Copies(componentType))))
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continue;
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listCLSIDs.push_back(factory(aClass, library));
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}
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// Finally read in PROGID -> CID mappings
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nsCOMPtr<nsIEnumerator> progidEnum;
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rv = mRegistry->EnumerateSubtrees( mClassesKey, getter_AddRefs(progidEnum));
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if (NS_FAILED(rv)) return rv;
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regEnum = do_QueryInterface(progidEnum, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = regEnum->First();
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for (rv = regEnum->First();
|
|
NS_SUCCEEDED(rv) && (regEnum->IsDone() != NS_OK);
|
|
rv = regEnum->Next())
|
|
{
|
|
const char *progidString;
|
|
nsRegistryKey progidKey;
|
|
/*
|
|
* CurrentItemInPlaceUTF8 will give us back a _shared_ pointer in
|
|
* progidString. This is bad XPCOM practice. It is evil, and requires
|
|
* great care with the relative lifetimes of progidString and regEnum.
|
|
*
|
|
* It is also faster, and less painful in the allocation department.
|
|
*/
|
|
rv = regEnum->CurrentItemInPlaceUTF8(&progidKey, &progidString);
|
|
if (NS_FAILED(rv)) continue;
|
|
|
|
nsXPIDLCString cidString;
|
|
rv = mRegistry->GetStringUTF8(progidKey, classIDValueName,
|
|
getter_Copies(cidString));
|
|
if (NS_FAILED(rv)) continue;
|
|
|
|
nsCID *aClass = new nsCID();
|
|
if (!aClass) continue; // Protect against out of memory.
|
|
if (!(aClass->Parse(cidString)))
|
|
{
|
|
delete aClass;
|
|
continue;
|
|
}
|
|
|
|
// put the {progid, Cid} mapping into our map
|
|
listProgIDs.push_back(progid2cid(progidString, *aClass));
|
|
|
|
delete aClass;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
NS_RELEASE(mRegistry);
|
|
|
|
return rv;
|
|
} |