diff options
Diffstat (limited to 'src/WebAdmin.cpp')
| -rw-r--r-- | src/WebAdmin.cpp | 527 |
1 files changed, 527 insertions, 0 deletions
diff --git a/src/WebAdmin.cpp b/src/WebAdmin.cpp new file mode 100644 index 000000000..462702893 --- /dev/null +++ b/src/WebAdmin.cpp @@ -0,0 +1,527 @@ + +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules + +#include "WebAdmin.h" +#include "Bindings/WebPlugin.h" + +#include "Bindings/PluginManager.h" +#include "Bindings/Plugin.h" + +#include "World.h" +#include "Entities/Player.h" +#include "Server.h" +#include "Root.h" + +#include "HTTPServer/HTTPMessage.h" +#include "HTTPServer/HTTPConnection.h" + + + + + +/// 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::cWebAdmin(void) : + m_IsInitialized(false), + m_TemplateScript("<webadmin_template>") +{ +} + + + + + +cWebAdmin::~cWebAdmin() +{ + if (m_IsInitialized) + { + LOGD("Stopping WebAdmin..."); + } +} + + + + + +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 ); +} + + + + + +bool cWebAdmin::Init(void) +{ + if (!m_IniFile.ReadFile("webadmin.ini")) + { + LOGWARN("Regenerating webadmin.ini, all settings will be reset"); + m_IniFile.AddHeaderComment(" This file controls the webadmin feature of MCServer"); + m_IniFile.AddHeaderComment(" Username format: [User:*username*] | Password format: Password=*password*; for example:"); + m_IniFile.AddHeaderComment(" [User:admin]"); + m_IniFile.AddHeaderComment(" Password=admin"); + } + + if (!m_IniFile.GetValueSetB("WebAdmin", "Enabled", true)) + { + // WebAdmin is disabled, bail out faking a success + return true; + } + + LOGD("Initialising WebAdmin..."); + + AString PortsIPv4 = m_IniFile.GetValueSet("WebAdmin", "Port", "8080"); + AString PortsIPv6 = m_IniFile.GetValueSet("WebAdmin", "PortsIPv6", ""); + + if (!m_HTTPServer.Initialize(PortsIPv4, PortsIPv6)) + { + return false; + } + m_IsInitialized = true; + m_IniFile.WriteFile("webadmin.ini"); + return true; +} + + + + + +bool cWebAdmin::Start(void) +{ + if (!m_IsInitialized) + { + // Not initialized + return false; + } + + LOGD("Starting WebAdmin..."); + + // Initialize the WebAdmin template script and load the file + m_TemplateScript.Create(); + if (!m_TemplateScript.LoadFile(FILE_IO_PREFIX "webadmin/template.lua")) + { + LOGWARN("Could not load WebAdmin template \"%s\", using default template.", FILE_IO_PREFIX "webadmin/template.lua"); + m_TemplateScript.Close(); + } + + return m_HTTPServer.Start(*this); +} + + + + + +AString cWebAdmin::GetTemplate() +{ + AString 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::HandleWebadminRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request) +{ + if (!a_Request.HasAuth()) + { + a_Connection.SendNeedAuth("MCServer WebAdmin"); + return; + } + + // Check auth: + AString UserPassword = m_IniFile.GetValue("User:" + a_Request.GetAuthUsername(), "Password", ""); + if ((UserPassword == "") || (a_Request.GetAuthPassword() != UserPassword)) + { + a_Connection.SendNeedAuth("MCServer WebAdmin - bad username or password"); + return; + } + + // Check if the contents should be wrapped in the template: + AString URL = a_Request.GetBareURL(); + ASSERT(URL.length() > 0); + bool ShouldWrapInTemplate = ((URL.length() > 1) && (URL[1] != '~')); + + // Retrieve the request data: + cWebadminRequestData * Data = (cWebadminRequestData *)(a_Request.GetUserData()); + if (Data == NULL) + { + a_Connection.SendStatusAndReason(500, "Bad UserData"); + return; + } + + // Wrap it all up for the Lua call: + AString Template; + HTTPTemplateRequest TemplateRequest; + TemplateRequest.Request.Username = a_Request.GetAuthUsername(); + TemplateRequest.Request.Method = a_Request.GetMethod(); + TemplateRequest.Request.Path = URL.substr(1); + + if (Data->m_Form.Finish()) + { + for (cHTTPFormParser::const_iterator itr = Data->m_Form.begin(), end = Data->m_Form.end(); itr != end; ++itr) + { + HTTPFormData HTTPfd; + HTTPfd.Value = itr->second; + HTTPfd.Type = ""; + HTTPfd.Name = itr->first; + TemplateRequest.Request.FormData[itr->first] = HTTPfd; + TemplateRequest.Request.PostParams[itr->first] = itr->second; + } // for itr - Data->m_Form[] + + // Parse the URL into individual params: + size_t idxQM = a_Request.GetURL().find('?'); + if (idxQM != AString::npos) + { + cHTTPFormParser URLParams(cHTTPFormParser::fpkURL, a_Request.GetURL().c_str() + idxQM + 1, a_Request.GetURL().length() - idxQM - 1, *Data); + URLParams.Finish(); + for (cHTTPFormParser::const_iterator itr = URLParams.begin(), end = URLParams.end(); itr != end; ++itr) + { + TemplateRequest.Request.Params[itr->first] = itr->second; + } // for itr - URLParams[] + } + } + + // Try to get the template from the Lua template script + if (ShouldWrapInTemplate) + { + if (m_TemplateScript.Call("ShowPage", this, &TemplateRequest, cLuaState::Return, Template)) + { + cHTTPResponse Resp; + Resp.SetContentType("text/html"); + a_Connection.Send(Resp); + a_Connection.Send(Template.c_str(), Template.length()); + return; + } + a_Connection.SendStatusAndReason(500, "m_TemplateScript failed"); + return; + } + + AString BaseURL = GetBaseURL(URL); + AString Menu; + Template = "{CONTENT}"; + AString FoundPlugin; + + for (PluginList::iterator itr = m_Plugins.begin(); itr != m_Plugins.end(); ++itr) + { + cWebPlugin * WebPlugin = *itr; + std::list< std::pair<AString, AString> > NameList = WebPlugin->GetTabNames(); + for (std::list< std::pair<AString, AString> >::iterator Names = NameList.begin(); Names != NameList.end(); ++Names) + { + Menu += "<li><a href='" + BaseURL + WebPlugin->GetWebTitle().c_str() + "/" + (*Names).second + "'>" + (*Names).first + "</a></li>"; + } + } + + sWebAdminPage Page = GetPage(TemplateRequest.Request); + AString Content = Page.Content; + FoundPlugin = Page.PluginName; + if (!Page.TabName.empty()) + { + FoundPlugin += " - " + Page.TabName; + } + + if (FoundPlugin.empty()) // Default page + { + Content = GetDefaultPage(); + } + + if (ShouldWrapInTemplate && (URL.size() > 1)) + { + Content += "\n<p><a href='" + BaseURL + "'>Go back</a></p>"; + } + + int MemUsageKiB = cRoot::GetPhysicalRAMUsage(); + if (MemUsageKiB > 0) + { + ReplaceString(Template, "{MEM}", Printf("%.02f", (double)MemUsageKiB / 1024)); + ReplaceString(Template, "{MEMKIB}", Printf("%d", MemUsageKiB)); + } + else + { + ReplaceString(Template, "{MEM}", "unknown"); + ReplaceString(Template, "{MEMKIB}", "unknown"); + } + ReplaceString(Template, "{USERNAME}", a_Request.GetAuthUsername()); + 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); + + cHTTPResponse Resp; + Resp.SetContentType("text/html"); + a_Connection.Send(Resp); + a_Connection.Send(Template.c_str(), Template.length()); +} + + + + + +void cWebAdmin::HandleRootRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request) +{ + static const char LoginForm[] = \ + "<h1>MCServer WebAdmin</h1>" \ + "<center>" \ + "<form method='get' action='webadmin/'>" \ + "<input type='submit' value='Log in'>" \ + "</form>" \ + "</center>"; + cHTTPResponse Resp; + Resp.SetContentType("text/html"); + a_Connection.Send(Resp); + a_Connection.Send(LoginForm, sizeof(LoginForm) - 1); + a_Connection.FinishResponse(); +} + + + + + +sWebAdminPage cWebAdmin::GetPage(const HTTPRequest & a_Request) +{ + sWebAdminPage Page; + AStringVector Split = StringSplit(a_Request.Path, "/"); + + // Find the plugin that corresponds to the requested path + AString FoundPlugin; + if (Split.size() > 1) + { + for (PluginList::iterator itr = m_Plugins.begin(); itr != m_Plugins.end(); ++itr) + { + if ((*itr)->GetWebTitle() == Split[1]) + { + Page.Content = (*itr)->HandleWebRequest(&a_Request); + cWebPlugin * WebPlugin = *itr; + FoundPlugin = WebPlugin->GetWebTitle(); + AString TabName = WebPlugin->GetTabNameForRequest(&a_Request).first; + Page.PluginName = FoundPlugin; + Page.TabName = TabName; + break; + } + } + } + + // Return the page contents + return Page; +} + + + + + +AString cWebAdmin::GetDefaultPage(void) +{ + AString Content; + Content += "<h4>Server Name:</h4>"; + Content += "<p>" + AString( cRoot::Get()->GetServer()->GetServerID() ) + "</p>"; + + Content += "<h4>Plugins:</h4><ul>"; + cPluginManager * PM = cPluginManager::Get(); + const cPluginManager::PluginMap & List = PM->GetAllPlugins(); + for (cPluginManager::PluginMap::const_iterator itr = List.begin(); itr != List.end(); ++itr) + { + if (itr->second == NULL) + { + continue; + } + AString VersionNum; + AppendPrintf(Content, "<li>%s V.%i</li>", itr->second->GetName().c_str(), itr->second->GetVersion()); + } + Content += "</ul>"; + Content += "<h4>Players:</h4><ul>"; + + cPlayerAccum PlayerAccum; + cWorld * World = cRoot::Get()->GetDefaultWorld(); // TODO - Create a list of worlds and players + if( World != NULL ) + { + World->ForEachPlayer(PlayerAccum); + Content.append(PlayerAccum.m_Contents); + } + Content += "</ul><br>"; + return Content; +} + + + + +AString cWebAdmin::GetBaseURL( const AString& a_URL ) +{ + return GetBaseURL(StringSplit(a_URL, "/")); +} + + + + + +AString cWebAdmin::GetHTMLEscapedString(const AString & a_Input) +{ + AString dst; + dst.reserve(a_Input.length()); + + // Loop over input and substitute HTML characters for their alternatives: + size_t len = a_Input.length(); + for (size_t i = 0; i < len; i++) + { + switch (a_Input[i]) + { + case '&': dst.append("&"); break; + case '\'': dst.append("'"); break; + case '"': dst.append("""); break; + case '<': dst.append("<"); break; + case '>': dst.append(">"); break; + default: + { + dst.push_back(a_Input[i]); + break; + } + } // switch (a_Input[i]) + } // for i - a_Input[] + + return dst; +} + + + + + +AString cWebAdmin::GetBaseURL(const AStringVector & a_URLSplit) +{ + AString BaseURL = "./"; + if (a_URLSplit.size() > 1) + { + for (unsigned int i = 0; i < a_URLSplit.size(); i++) + { + BaseURL += "../"; + } + BaseURL += "webadmin/"; + } + return BaseURL; +} + + + + + +void cWebAdmin::OnRequestBegun(cHTTPConnection & a_Connection, cHTTPRequest & a_Request) +{ + const AString & URL = a_Request.GetURL(); + if ( + (strncmp(URL.c_str(), "/webadmin", 9) == 0) || + (strncmp(URL.c_str(), "/~webadmin", 10) == 0) + ) + { + a_Request.SetUserData(new cWebadminRequestData(a_Request)); + return; + } + if (URL == "/") + { + // The root needs no body handler and is fully handled in the OnRequestFinished() call + return; + } + // TODO: Handle other requests +} + + + + + +void cWebAdmin::OnRequestBody(cHTTPConnection & a_Connection, cHTTPRequest & a_Request, const char * a_Data, int a_Size) +{ + cRequestData * Data = (cRequestData *)(a_Request.GetUserData()); + if (Data == NULL) + { + return; + } + Data->OnBody(a_Data, a_Size); +} + + + + + +void cWebAdmin::OnRequestFinished(cHTTPConnection & a_Connection, cHTTPRequest & a_Request) +{ + const AString & URL = a_Request.GetURL(); + if ( + (strncmp(URL.c_str(), "/webadmin", 9) == 0) || + (strncmp(URL.c_str(), "/~webadmin", 10) == 0) + ) + { + HandleWebadminRequest(a_Connection, a_Request); + } + else if (URL == "/") + { + // The root needs no body handler and is fully handled in the OnRequestFinished() call + HandleRootRequest(a_Connection, a_Request); + } + else + { + // TODO: Handle other requests + } + + // Delete any request data assigned to the request: + cRequestData * Data = (cRequestData *)(a_Request.GetUserData()); + delete Data; +} + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cWebAdmin::cWebadminRequestData + +void cWebAdmin::cWebadminRequestData::OnBody(const char * a_Data, int a_Size) +{ + m_Form.Parse(a_Data, a_Size); +} + + + + |