#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include "cWebAdmin.h"
#include "cStringMap.h"
#include "cWebPlugin.h"
#include "cWebPlugin_Lua.h"
#include "cPluginManager.h"
#include "cPlugin.h"
#include "cWorld.h"
#include "cPlayer.h"
#include "cServer.h"
#include "cRoot.h"
#include "../iniFile/iniFile.h"
#ifdef _WIN32
#include <psapi.h>
#else
#include <sys/resource.h>
#endif
/// Helper class - appends all player names together in a HTML list
class cPlayerAccum :
public cPlayerListCallback
{
virtual bool Item(cPlayer * a_Player) override
{
m_Contents.append("<li>");
m_Contents.append(a_Player->GetName());
m_Contents.append("</li>");
return false;
}
public:
AString m_Contents;
} ;
cWebAdmin * WebAdmin = NULL;
cWebAdmin::cWebAdmin( int a_Port /* = 8080 */ )
: m_Port( a_Port )
, m_bConnected( false )
{
WebAdmin = this;
m_Event = new cEvent();
Init( m_Port );
}
cWebAdmin::~cWebAdmin()
{
WebAdmin = 0;
m_WebServer->Stop();
while( m_Plugins.begin() != m_Plugins.end() )
{
delete *m_Plugins.begin();
//m_Plugins.remove( *m_Plugins.begin() );
}
delete m_WebServer;
delete m_IniFile;
m_Event->Wait();
delete m_Event;
}
void cWebAdmin::AddPlugin( cWebPlugin* a_Plugin )
{
m_Plugins.remove( a_Plugin );
m_Plugins.push_back( a_Plugin );
}
void cWebAdmin::RemovePlugin( cWebPlugin* a_Plugin )
{
m_Plugins.remove( a_Plugin );
}
void cWebAdmin::Request_Handler(webserver::http_request* r)
{
if( WebAdmin == 0 ) return;
LOG("Path: %s", r->path_.c_str() );
if (r->path_ == "/")
{
r->answer_ += "<h1>MCServer WebAdmin</h1>";
r->answer_ += "<center>";
r->answer_ += "<form method='get' action='webadmin/'>";
r->answer_ += "<input type='submit' value='Log in'>";
r->answer_ += "</form>";
r->answer_ += "</center>";
return;
}
if (r->path_.empty() || r->path_[0] != '/')
{
r->answer_ += "<h1>Bad request</h1>";
r->answer_ += "<p>";
r->answer_ = r->path_; // TODO: Shouldn't we sanitize this? Possible security issue.
r->answer_ += "</p>";
return;
}
AStringVector Split = StringSplit(r->path_.substr(1), "/");
if (Split.empty() || (Split[0] != "webadmin"))
{
r->answer_ += "<h1>Bad request</h1>";
return;
}
if (!r->authentication_given_)
{
r->answer_ += "no auth";
r->auth_realm_ = "MCServer WebAdmin";
}
std::string UserPassword = WebAdmin->m_IniFile->GetValue( "User:"+r->username_, "Password", "");
if ((UserPassword != "") && (r->password_ == UserPassword))
{
std::string BaseURL = "./";
if (Split.size() > 1)
{
for (unsigned int i = 0; i < Split.size(); i++)
{
BaseURL += "../";
}
BaseURL += "webadmin/";
}
std::string Menu;
std::string Content;
std::string Template = WebAdmin->GetTemplate();
std::string FoundPlugin;
for (PluginList::iterator itr = WebAdmin->m_Plugins.begin(); itr != WebAdmin->m_Plugins.end(); ++itr)
{
cWebPlugin* WebPlugin = *itr;
cWebPlugin_Lua* LuaPlugin = dynamic_cast< cWebPlugin_Lua* >( WebPlugin );
if( LuaPlugin )
{
std::list< std::pair<std::string, std::string> > NameList = LuaPlugin->GetTabNames();
for( std::list< std::pair<std::string, std::string> >::iterator Names = NameList.begin(); Names != NameList.end(); ++Names )
{
Menu += "<li><a href='" + BaseURL + WebPlugin->GetName() + "/" + (*Names).second + "'>" + (*Names).first + "</a></li>";
}
}
else
{
Menu += "<li><a href='" + BaseURL + WebPlugin->GetName() + "'>" + WebPlugin->GetName() + "</a></li>";
}
}
HTTPRequest Request;
Request.Username = r->username_;
Request.Method = r->method_;
Request.Params = r->params_;
Request.PostParams = r->params_post_;
Request.Path = r->path_.substr(1);
for( unsigned int i = 0; i < r->multipart_formdata_.size(); ++i )
{
webserver::formdata& fd = r->multipart_formdata_[i];
HTTPFormData HTTPfd;//( fd.value_ );
HTTPfd.Value = fd.value_;
HTTPfd.Type = fd.content_type_;
HTTPfd.Name = fd.name_;
LOGINFO("Form data name: %s", fd.name_.c_str() );
Request.FormData[ fd.name_ ] = HTTPfd;
}
if( Split.size() > 1 )
{
for( PluginList::iterator itr = WebAdmin->m_Plugins.begin(); itr != WebAdmin->m_Plugins.end(); ++itr )
{
if( (*itr)->GetName() == Split[1] )
{
Content = (*itr)->HandleRequest( &Request );
cWebPlugin* WebPlugin = *itr;
FoundPlugin = WebPlugin->GetName();
cWebPlugin_Lua* LuaPlugin = dynamic_cast< cWebPlugin_Lua* >( WebPlugin );
if( LuaPlugin )
{
FoundPlugin += " - " + LuaPlugin->GetTabNameForRequest( &Request ).first;
}
break;
}
}
}
if( FoundPlugin.empty() ) // Default page
{
Content.clear();
FoundPlugin = "Current Game";
Content += "<h4>Server Name:</h4>";
Content += "<p>" + std::string( cRoot::Get()->GetServer()->GetServerID() ) + "</p>";
Content += "<h4>Plugins:</h4><ul>";
cPluginManager* PM = cRoot::Get()->GetPluginManager();
if( PM )
{
const cPluginManager::PluginList & List = PM->GetAllPlugins();
for( cPluginManager::PluginList::const_iterator itr = List.begin(); itr != List.end(); ++itr )
{
AString VersionNum;
AppendPrintf(Content, "<li>%s V.%i</li>", (*itr)->GetName(), (*itr)->GetVersion());
}
}
Content += "</ul>";
Content += "<h4>Players:</h4><ul>";
cPlayerAccum PlayerAccum;
cWorld * World = cRoot::Get()->GetDefaultWorld(); // TODO - Create a list of worlds and players
World->ForEachPlayer(PlayerAccum);
Content.append(PlayerAccum.m_Contents);
Content += "</ul><br>";
}
if( Split.size() > 1 )
{
Content += "\n<p><a href='" + BaseURL + "'>Go back</a></p>";
}
// mem usage
#ifndef _WIN32
rusage resource_usage;
if (getrusage(RUSAGE_SELF, &resource_usage) != 0)
{
ReplaceString( Template, std::string("{MEM}"), "Error :(" );
}
else
{
AString MemUsage;
Printf(MemUsage, "%0.2f", ((double)resource_usage.ru_maxrss / 1024 / 1024) );
ReplaceString(Template, std::string("{MEM}"), MemUsage);
}
#else
HANDLE hProcess = GetCurrentProcess();
PROCESS_MEMORY_COUNTERS pmc;
if( GetProcessMemoryInfo( hProcess, &pmc, sizeof(pmc) ) )
{
AString MemUsage;
Printf(MemUsage, "%0.2f", (pmc.WorkingSetSize / 1024.f / 1024.f) );
ReplaceString( Template, "{MEM}", MemUsage );
}
#endif
// end mem usage
ReplaceString( Template, "{USERNAME}", r->username_ );
ReplaceString( Template, "{MENU}", Menu );
ReplaceString( Template, "{PLUGIN_NAME}", FoundPlugin );
ReplaceString( Template, "{CONTENT}", Content );
ReplaceString( Template, "{TITLE}", "MCServer" );
AString NumChunks;
Printf(NumChunks, "%d", cRoot::Get()->GetTotalChunkCount());
ReplaceString(Template, "{NUMCHUNKS}", NumChunks);
r->answer_ = Template;
}
else
{
r->answer_ += "Wrong username/password";
r->auth_realm_ = "MCServer WebAdmin";
}
}
bool cWebAdmin::Init( int a_Port )
{
m_Port = a_Port;
m_IniFile = new cIniFile("webadmin.ini");
if( m_IniFile->ReadFile() )
{
m_Port = m_IniFile->GetValueI("WebAdmin", "Port", 8080 );
}
LOG("Starting WebAdmin on port %i", m_Port);
#ifdef _WIN32
HANDLE hThread = CreateThread(
NULL, // default security
0, // default stack size
ListenThread, // name of the thread function
this, // thread parameters
0, // default startup flags
NULL);
CloseHandle( hThread ); // Just close the handle immediately
#else
pthread_t LstnThread;
pthread_create( &LstnThread, 0, ListenThread, this);
#endif
return true;
}
#ifdef _WIN32
DWORD WINAPI cWebAdmin::ListenThread(LPVOID lpParam)
#else
void *cWebAdmin::ListenThread( void *lpParam )
#endif
{
cWebAdmin* self = (cWebAdmin*)lpParam;
self->m_WebServer = new webserver(self->m_Port, Request_Handler );
if (!self->m_WebServer->Begin())
{
LOGWARN("WebServer failed to start! WebAdmin is disabled");
}
self->m_Event->Set();
return 0;
}
std::string cWebAdmin::GetTemplate()
{
std::string retVal = "";
char SourceFile[] = "webadmin/template.html";
cFile f;
if (!f.Open(SourceFile, cFile::fmRead))
{
return "";
}
// copy the file into the buffer:
f.ReadRestOfFile(retVal);
return retVal;
}
void cWebAdmin::RemovePlugin( lua_State* L )
{
for( PluginList::iterator itr = m_Plugins.begin(); itr != m_Plugins.end(); )
{
if( (*itr)->GetLuaState() == L )
{
PluginList::iterator prev = itr++;
delete *prev; // deleting a dereferenced iterator also takes it out of the list, so no need for erase()
}
else
++itr;
}
}
