is_main.pas

subversion-1.4.3-1.tar.gz 配置svn的源码

(* is_main.pas: Pascal Scripts routines for Inno Setup Windows installer.
 * ====================================================================
 * Copyright (c) 2000-2005 CollabNet.  All rights reserved.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution.  The terms
 * are also available at http://subversion.tigris.org/license-1.html.
 * If newer versions of this license are posted there, you may use a
 * newer version instead, at your option.
 *
 * This software consists of voluntary contributions made by many
 * individuals.  For exact contribution history, see the revision
 * history and logs, available at http://subversion.tigris.org/.
 * ====================================================================
 *)

// ****************************************************************************
// Global variables
var
    // Required dlls
    g_bMsVcpNotFound: Boolean;                // Visual C++ 6.0 Runtimes
    g_bShFolderNotFound: Boolean;             // shfolder.dll

    // Apache
    g_bHandleApache: Boolean;
    g_sApachePath: String;
    g_sApachePathBin: String;
    g_sApachePathConf: String;


const
    // Visual C++ 6.0 Runtime file related
    FILE_MSVCPDLL = 'msvcp60.dll';
    URL_VCREDIST = 'http://support.microsoft.com/support/kb/articles/Q259/4/03.ASP';

    // shfolder.dll related
    FILE_SHFOLDERDLL = 'shfolder.dll';
    URL_SHFREDIST = 'http://download.microsoft.com/download/platformsdk/Redist/5.50.4027.300/W9XNT4/EN-US/shfinst.EXE';

    // Apache
    REG_KEY_APACHE_SERVICE = 'SYSTEM\CurrentControlSet\Services\Apache2';
    APACHE_VER_MIN = '{#= apache_ver_min}';

    // Status codes for modules in httpd.conf
    STATUS_NONE = 0;
    STATUS_DISABLED = 1;
    STATUS_ENABLED = 2;

// ****************************************************************************
// Name:    BackslashToSlash
// Purpose: Turning back slashes into slashes. This function is stolen
//          shamelessly from the Inno help file.
// NOTE:    For some unknown reason, this function has to stay here before
//          other functions in order to avoid compile errors from the setup
//          program. I don't not why, ..anyone?
function BackslashToSlash(const S: String): String;
var
  I: Integer;
begin
  Result := S;
  I := 1;
  while I <= Length(Result) do
  begin
    if Result[I] = '\' then
      Result[I] := '/';
    // Go to the next character. But do not simply increment I by 1.
    // Increment by CharLength() in case Result[I] is a double-byte character.
    I := I + CharLength(Result, I);
  end;
end;

///////////////////////////////////////////////////////////////////////////////
// APACHE related stuff

// ****************************************************************************
// Name:    ApachePathParent
// Purpose: Returns the path of Apache parent folder.
function ApachePathParent(): String;
var
    sApachePathParent: String;
    iLengthString: Integer;
    iPosK: Integer;
begin

    if RegKeyExists(HKLM, REG_KEY_APACHE_SERVICE) and UsingWinNT then
    begin
        // Set g_sApachePathBin
        RegQueryStringValue(HKLM, REG_KEY_APACHE_SERVICE,
                            'ImagePath', sApachePathParent);

        // Remove the run command and strip quotes away from g_sApachePathBin
        iPosK := Pos('-k', sApachePathParent);
        iLengthString := Length(sApachePathParent);
        Delete(sApachePathParent, iLengthString - (iLengthString - iPosK), iPosK);
        sApachePathParent := RemoveQuotes(sApachePathParent);

        // Strip basename twice so only the Apache parent path is left
        sApachePathParent := ExtractFileDir(sApachePathParent);
        sApachePathParent := ExtractFileDir(sApachePathParent);
    end;

    // Function variables
    Result := sApachePathParent;
end;

// ****************************************************************************
// Name:    ApacheTask
// Purpose: Decide if we should handle the Apache Server or not
function ApacheTask(): Boolean;
begin
    Result:= UsingWinNT and not (ApachePathParent = '');
end;

// ****************************************************************************
// Name:    ApacheBinFound
// Purpose: Checks if bin\apache.exe excists in Apache's parent folder.
//          Returns True if Yes and False if No
function ApacheBinFound(): Boolean;
var
    sApacheBinary: String;
begin
    sApacheBinary := ApachePathParent() + '\bin\apache.exe';

    if FileExists(sApacheBinary) then
    begin
        Result:= True;
    end else begin
        Result:= False;
    end;
end;

// ****************************************************************************
// Name:    ApacheServiceStop
// Purpose: Stopping the Apache Service
procedure ApacheServiceStop();
var
    bRetVal: Boolean;
    ErrorCode: Integer;
begin
    bRetVal := Exec('cmd.exe', '/C apache -k stop', g_sApachePathBin,
                             SW_HIDE, ewWaitUntilTerminated, ErrorCode);
end;

// ****************************************************************************
// Name:    ApacheServiceStart
// Purpose: Starting the Apache Service
procedure ApacheServiceStart();
var
    bRetVal: Boolean;
    ErrorCode: Integer;
begin
    bRetVal := Exec('cmd.exe', '/C apache -k start', g_sApachePathBin,
                        SW_HIDE, ewWaitUntilTerminated, ErrorCode);
end;


// ****************************************************************************
// Name:    ApacheModuleStatus
// Purpose: Identifying if a module is in a string and returning it's status
Function ApacheModuleStatus(sLine: String): Integer;
var
	iStatus: Integer;
	iPosSharp, iPosModule: Integer;
begin
    iStatus:= STATUS_NONE;
    iPosSharp := Pos('#', sLine);
    iPosModule := Pos('LoadModule ', sLine);

    if Pos('foo_module ', sLine) = 0 then
    begin
        if (iPosSharp > 0) and (iPosModule > iPosSharp) then
        begin
            iStatus := STATUS_DISABLED;
        end else
        begin
            iStatus := STATUS_ENABLED;
        end;
    end;

    Result := iStatus;
end;

// ****************************************************************************
// Name:    ApacheModuleName
// Purpose: Extracting and returning a module name from a string
Function ApacheModuleName(sLine: String): String;
var
    iPosModNameStart, iPosModNameEnd: Integer;
    iCharNum: Integer;
    sModuleName : String;
begin
    iPosModNameStart := (Pos('modules/mod_', sLine) + 12);
    iPosModNameEnd := (Pos('.so', sLine) - 1);

    sModuleName := '';
    iCharNum := iPosModNameStart;

    for iCharNum := iPosModNameStart to iPosModNameEnd do
    begin
        sModuleName := sModuleName + StrGet(sLine, iCharNum);
    end;

    sModuleName := sModuleName + '_module';

    Result := sModuleName;
end;

// ****************************************************************************
// Name:    ApacheConfFileEdit
// Purpose: Checking if the httpd.conf (Subversion related modules) file
//          if needed.
procedure ApacheConfFileEdit(aHttpdConf: TArrayOfString;
                             iPosFileModules, iPosFileModulesPost,
                             iPosModDav, iStatusModDav,
                             iPosModDavSvn, iStatusModDavSvn,
                             iPosModAuthzSvn, iStatusModAuthzSvn: Integer);
var
    sConfFileName, sTimeString: String;
    sModuleDir, sLoadModDav, sLoadModDavSvn, sLoadModAuthzSvn: String;

begin
    sConfFileName := g_sApachePathConf + '\httpd.conf';
    sTimeString := GetDateTimeString('yyyy/mm/dd hh:mm:ss', '-', ':');

    sModuleDir := ExpandConstant('{app}');
    sModuleDir := sModuleDir + '\bin';
    sModuleDir := BackslashToSlash(sModuleDir);

    sLoadModDav := 'LoadModule dav_module modules/mod_dav.so';
    sLoadModDavSvn := 'LoadModule dav_svn_module "' + sModuleDir + '/mod_dav_svn.so"';
    sLoadModAuthzSvn := 'LoadModule authz_svn_module "' + sModuleDir + '/mod_authz_svn.so"';

    //Backup the current httpd.conf
    FileCopy (sConfFileName, sConfFileName + '-svn-' + sTimeString + '.bak', False);

    // Add the modules if they're not there
    if (iStatusModDav = STATUS_NONE) then
    begin
        if iPosModDav = 0 then
        begin
            iPosModDav := iPosFileModules + 10;
        end;

        aHttpdConf[iPosModDav] := aHttpdConf[iPosModDav] + #13#10 + sLoadModDav;
    end;

    if (iStatusModDavSvn = STATUS_NONE) then
        aHttpdConf[iPosFileModulesPost -1] := aHttpdConf[iPosFileModulesPost -1] + #13#10 +
                                              sLoadModDavSvn;

    if (iStatusModAuthzSvn = STATUS_NONE) then
        aHttpdConf[iPosFileModulesPost -1] := aHttpdConf[iPosFileModulesPost -1] + #13#10 +
                                              sLoadModAuthzSvn;

    // Enable modules if disabled ********************************
    if (iStatusModDav = STATUS_DISABLED) then
        aHttpdConf[iPosModDav] := sLoadModDav;

    if (iStatusModDavSvn = STATUS_DISABLED) then
        aHttpdConf[iPosModDavSvn] := sLoadModDavSvn;

    if (iStatusModAuthzSvn = STATUS_DISABLED) then
        aHttpdConf[iPosModAuthzSvn] := sLoadModAuthzSvn;

    SaveStringsToFile(sConfFileName, aHttpdConf, False);
end;

// ****************************************************************************
// Name:    ApacheConfFileHandle
// Purpose: Checking if the httpd.conf (Subversion related modules) file should
//          be edited and sets some data for further proccessing if needed.
procedure ApacheConfFileHandle();
var
    aHttpdConf : TArrayOfString;

    sConfFileName: String;
    sCurrentLine: String;

    iLineNum, iArrayLen: Integer;

    iPosFileModules, iPosFileModulesPost : Integer;
    iPosModDav, iPosModDavSvn, iPosModAuthzSvn: Integer;
    iStatusModDav, iStatusModDavSvn, iStatusModAuthzSvn: Integer;
begin
    iStatusModDav := STATUS_NONE;
    iStatusModDavSvn := STATUS_NONE;
    iStatusModAuthzSvn := STATUS_NONE;
    
    sConfFileName:= g_sApachePathConf + '\httpd.conf';

    //Load the httpd.conf to the aHttpdConf array  and init vars
    LoadStringsFromFile(sConfFileName, aHttpdConf);

    iArrayLen := GetArrayLength(aHttpdConf)-1;

    // Check httpd.conf line by line