更改Firefox代理设置？

Question

如何从脚本（如vb脚本或者.net）更改Firefox的代理设置？如果有人能告诉我如何做到这一点，那就太好了。

Answer 1

您可以通过写prefs.js文件做到这一点，但是，我的理解是，这个文件只在启动时加载，和关闭时，所以我认为这样做的唯一可靠方法是火狐可能会覆盖更改到：

1. 关闭所有Firefox进程。
2. 更改prefs.js。
3. 启动Firefox。

该代码项目文章应该告诉你如何从VBScript关闭的过程：DestroyWindow in VBScript

可以使用FileSystemObject读/写文件。

我觉得这样的事情会再次启动它的工作：

Set shell = CreateObject("WScript.Shell") 
shell.Run Chr(34) & "PathToFireFox.exe" & Chr(34), 1, false 

Answer 2

/*This program will find the path to application data of user,and get the path 
(\Mozilla\Firefox\Profiles\*.default) and find proxy from the file prefs.js */ 


#include <iostream> 
#include <sstream> 
#include <fstream> 
#include <windows.h> 
#include <string> 
#include <shlobj.h> 
#include <winerror.h> 
#include <vector> 

#define MAX 8192 
using namespace std; 

wstring ReadProxyFromFile(wstring fileName); 
wstring ParseAndGetProxyDetails (wstring strLine, wstring field); 
wstring ReadINIFileAndGetFirefoxProfilePath(wstring &profileFilePath); 

/// 
/// This function converts wstring to string. 
/// 
string ToString(wchar_t const * pwch, UINT code_page) 
{ 
    // Allocate the appropriate space 
    int sizeRequired = WideCharToMultiByte(code_page, 0, pwch, -1, NULL, 0, NULL, NULL); 
    char * ach = new char[sizeRequired + 1]; 

    // Convert it 
    WideCharToMultiByte(code_page, 0, pwch, -1, ach, sizeRequired, NULL, NULL); 

    // Put it into the return value 
    string ret(ach); 

    // Clean up 
    delete[] ach; 

    // Return the new string 
    return ret; 
} 

/// 
/// This function splits a string into fields using a separator. 
/// 

vector<string> Split(string const & str_, char const * sep) 
{ 
    string str = str_.c_str(); 
    size_t sep_len = ::strlen(sep); 

    vector<string> ret; 
    for (size_t i = str.find(sep); i != str.npos; i = str.find(sep)) 
    { 
    ret.push_back(str.substr(0, i)); 
    str = str.substr(i + sep_len, str.npos); 
    } 
    if (str.length() > 0) 
    ret.push_back(str); 
    return ret; 
} 

/// 
/// This function converts string to wstring. 
/// 
wstring ToWStr(string const& x, UINT code_page) 
{ 
    // Allocate the appropriate space 
    int sizeRequired = MultiByteToWideChar(code_page, 0, x.c_str(), -1, NULL, 0); 
    wchar_t * ach = new wchar_t[sizeRequired + 1]; 

    // Convert it 
    MultiByteToWideChar(code_page, 0, x.c_str(), -1, ach, sizeRequired); 

    // Put it into the return value 
    wstring ret(ach); 

    // Clean up 
    delete[] ach; 

    // Return the new string 
    return ret; 
} 

int main() 
{ 
    LPWSTR wszPath = NULL; 
    HRESULT hr; 
    wstring strPath; 
    hr = SHGetKnownFolderPath(FOLDERID_RoamingAppData , KF_FLAG_CREATE, NULL, &wszPath); 

    if (SUCCEEDED(hr)) 
    { 
    strPath = wszPath; 
    strPath += L"\\Mozilla\\Firefox"; 

    wstring profileFilePath = strPath + L"\\profiles.ini"; 
    wstring strCurrentProfile = ReadINIFileAndGetFirefoxProfilePath(profileFilePath); 
    wstring prefsPath = strPath + L"\\" + strCurrentProfile + L"\\prefs.js"; 

    wstring strProxy = ReadProxyFromFile(prefsPath); 
    if (strProxy.length()>0) 
    { 
     wcout << "Proxy is " <<strProxy <<endl; 
    } 
    return 0; 
    } 
} 

wstring ReadINIFileAndGetFirefoxProfilePath(wstring &profileFilePath) 
{ 
    // reading each section from ini file 
    LPWSTR pSecNames= new WCHAR[1024]; 
    int nSectionNum = 1; 
    wstring strAllSectionNames; 

    DWORD retVal = GetPrivateProfileSectionNames(pSecNames,1024,profileFilePath.c_str()); 

    if (retVal) 
    { 
    for (unsigned int i =0; i < retVal; i++) 
    { 
     if (pSecNames[i] == NULL) 
     { 
     strAllSectionNames += L"_"; 
     } 
     else 
     { 
     strAllSectionNames += pSecNames[i]; 
     } 
    } 
    delete pSecNames; 

    string sectionNames = ToString(strAllSectionNames.c_str(),CP_UTF8); 
    vector <string> sectionNamesVector = Split(sectionNames.c_str(),"_"); 

    wstring strSectionName; 
    for (int it = 0 ; it < sectionNamesVector.size(); it++) 
    { 
    strSectionName = ToWStr(sectionNamesVector.at(it),CP_UTF8); 
    wcout << nSectionNum << ". Section name: " << strSectionName; 
    LPWSTR pProfile= new WCHAR[1024]; 
    DWORD active = GetPrivateProfileString(strSectionName.c_str(),L"Default",NULL,pProfile,MAX,profileFilePath.c_str()); 
    if(active) 
    { 
     GetPrivateProfileString(strSectionName.c_str(),L"Path",NULL,(LPWSTR)pProfile,MAX,profileFilePath.c_str()); 
     wstring strPath = pProfile; 
     delete pProfile; 
     return strPath; 
    } 
    delete pProfile; 
    nSectionNum++; 
    } 
} 
} 


wstring ReadProxyFromFile(wstring fileName) 
{ 
    wstring proxyType; 
    wstring proxyHttp; 
    wstring httpPort; 
    wstring noProxiesOn; 
    wstring autoconfigUrl; 
    wstring proxySettings; 
    wstring field; 
    int nProxyType; 

    wifstream myfile; 
    wstring strLine; 
    size_t pos; 

    myfile.open (fileName.c_str()); 
    if (myfile.is_open()) 
    { 
    while (!myfile.eof()) 
    { 
     getline(myfile,strLine); 
     if (!strLine.find(L"user_pref")) 
     { 
     pos = strLine.find_first_of(L", "); 
     field = strLine.substr(11,pos-12); 

     if (field == L"network.proxy.type") 
     { 
      proxyType = ParseAndGetProxyDetails(strLine, field); 
      nProxyType = _wtoi(proxyType.c_str()); 
     } 
     if (field == L"network.proxy.http") 
     { 
      proxyHttp = ParseAndGetProxyDetails(strLine, field); 
     } 
     if (field == L"network.proxy.http_port") 
     { 
      httpPort = ParseAndGetProxyDetails(strLine, field); 
     } 
     if (field == L"network.proxy.autoconfig_url") 
     { 
      autoconfigUrl = ParseAndGetProxyDetails(strLine, field); 
     } 
     if (field == L"network.proxy.no_proxies_on") 
     { 
      noProxiesOn = ParseAndGetProxyDetails(strLine, field); 
     } 
     } 
    } 
    } 
    myfile.close(); 

    switch (nProxyType) 
    { 
    case 0: // no proxy 
    proxySettings = L"FF:"; 
    break; 
    case 1: // manual proxy 
    proxySettings = L"FF:PXY:"+proxyHttp+L":"+httpPort; 
    break; 
    case 2: //autoconfig_url 
    proxySettings = L"FF:URL:"+autoconfigUrl; 
    break; 
    case 4: // auto proxy 
    proxySettings = L"FF:"; 
    break; 
    default: // system proxy 
    proxySettings = L"FF::"; 
    break; 
    } 

    return proxySettings; 
} 

wstring ParseAndGetProxyDetails (wstring strLine, wstring field) 
{ 
    size_t position; 
    wstring proxyDetail; 
    position = strLine.find(field); 
    if (position != string::npos) 
    { 
    proxyDetail = strLine.substr(position); 
    position = proxyDetail.find_first_of(L","); 
    proxyDetail = proxyDetail.substr(position+1); 
    position = proxyDetail.find_first_of(L");"); 
    proxyDetail = proxyDetail.substr(0,position); 
    } 
    return proxyDetail; 
}