545 lines
12 KiB
C++
545 lines
12 KiB
C++
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#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
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#include "WebAdmin.h"
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#include "Bindings/WebPlugin.h"
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#include "Bindings/PluginManager.h"
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#include "Bindings/Plugin.h"
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#include "World.h"
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#include "Entities/Player.h"
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#include "Server.h"
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#include "Root.h"
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#include "HTTPServer/HTTPMessage.h"
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#include "HTTPServer/HTTPConnection.h"
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/// Helper class - appends all player names together in a HTML list
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class cPlayerAccum :
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public cPlayerListCallback
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{
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virtual bool Item(cPlayer * a_Player) override
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{
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m_Contents.append("<li>");
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m_Contents.append(a_Player->GetName());
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m_Contents.append("</li>");
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return false;
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}
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public:
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AString m_Contents;
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} ;
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cWebAdmin::cWebAdmin(void) :
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m_IsInitialized(false),
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m_IsRunning(false),
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m_TemplateScript("<webadmin_template>")
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{
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}
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cWebAdmin::~cWebAdmin()
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{
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ASSERT(!m_IsRunning); // Was the HTTP server stopped properly?
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}
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void cWebAdmin::AddPlugin(cWebPlugin * a_Plugin)
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{
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m_Plugins.remove(a_Plugin);
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m_Plugins.push_back(a_Plugin);
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}
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void cWebAdmin::RemovePlugin(cWebPlugin * a_Plugin)
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{
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m_Plugins.remove(a_Plugin);
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}
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bool cWebAdmin::Init(void)
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{
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if (!m_IniFile.ReadFile("webadmin.ini"))
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{
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LOGWARN("Regenerating webadmin.ini, all settings will be reset");
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m_IniFile.AddHeaderComment(" This file controls the webadmin feature of MCServer");
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m_IniFile.AddHeaderComment(" Username format: [User:*username*]");
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m_IniFile.AddHeaderComment(" Password format: Password=*password*; for example:");
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m_IniFile.AddHeaderComment(" [User:admin]");
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m_IniFile.AddHeaderComment(" Password=admin");
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m_IniFile.WriteFile("webadmin.ini");
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}
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if (!m_IniFile.GetValueSetB("WebAdmin", "Enabled", true))
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{
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// WebAdmin is disabled, bail out faking a success
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return true;
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}
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LOGD("Initialising WebAdmin...");
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m_PortsIPv4 = m_IniFile.GetValueSet("WebAdmin", "Port", "8080");
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m_PortsIPv6 = m_IniFile.GetValueSet("WebAdmin", "PortsIPv6", "");
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if (!m_HTTPServer.Initialize(m_PortsIPv4, m_PortsIPv6))
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{
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return false;
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}
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m_IsInitialized = true;
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m_IniFile.WriteFile("webadmin.ini");
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return true;
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}
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bool cWebAdmin::Start(void)
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{
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if (!m_IsInitialized)
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{
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// Not initialized
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return false;
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}
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LOGD("Starting WebAdmin...");
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// Initialize the WebAdmin template script and load the file
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m_TemplateScript.Create();
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m_TemplateScript.RegisterAPILibs();
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if (!m_TemplateScript.LoadFile(FILE_IO_PREFIX "webadmin/template.lua"))
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{
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LOGWARN("Could not load WebAdmin template \"%s\", using default template.", FILE_IO_PREFIX "webadmin/template.lua");
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m_TemplateScript.Close();
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}
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m_IsRunning = m_HTTPServer.Start(*this);
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return m_IsRunning;
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}
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void cWebAdmin::Stop(void)
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{
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if (!m_IsRunning)
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{
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return;
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}
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LOGD("Stopping WebAdmin...");
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m_HTTPServer.Stop();
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m_IsRunning = false;
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}
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AString cWebAdmin::GetTemplate()
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{
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AString retVal = "";
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char SourceFile[] = "webadmin/template.html";
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cFile f;
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if (!f.Open(SourceFile, cFile::fmRead))
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{
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return "";
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}
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// copy the file into the buffer:
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f.ReadRestOfFile(retVal);
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return retVal;
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}
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void cWebAdmin::HandleWebadminRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
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{
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if (!a_Request.HasAuth())
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{
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a_Connection.SendNeedAuth("MCServer WebAdmin");
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return;
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}
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// Check auth:
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AString UserPassword = m_IniFile.GetValue("User:" + a_Request.GetAuthUsername(), "Password", "");
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if ((UserPassword == "") || (a_Request.GetAuthPassword() != UserPassword))
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{
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a_Connection.SendNeedAuth("MCServer WebAdmin - bad username or password");
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return;
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}
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// Check if the contents should be wrapped in the template:
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AString URL = a_Request.GetBareURL();
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ASSERT(URL.length() > 0);
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bool ShouldWrapInTemplate = ((URL.length() > 1) && (URL[1] != '~'));
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// Retrieve the request data:
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cWebadminRequestData * Data = (cWebadminRequestData *)(a_Request.GetUserData());
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if (Data == NULL)
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{
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a_Connection.SendStatusAndReason(500, "Bad UserData");
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return;
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}
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// Wrap it all up for the Lua call:
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AString Template;
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HTTPTemplateRequest TemplateRequest;
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TemplateRequest.Request.Username = a_Request.GetAuthUsername();
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TemplateRequest.Request.Method = a_Request.GetMethod();
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TemplateRequest.Request.Path = URL.substr(1);
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if (Data->m_Form.Finish())
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{
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for (cHTTPFormParser::const_iterator itr = Data->m_Form.begin(), end = Data->m_Form.end(); itr != end; ++itr)
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{
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HTTPFormData HTTPfd;
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HTTPfd.Value = itr->second;
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HTTPfd.Type = "";
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HTTPfd.Name = itr->first;
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TemplateRequest.Request.FormData[itr->first] = HTTPfd;
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TemplateRequest.Request.PostParams[itr->first] = itr->second;
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} // for itr - Data->m_Form[]
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// Parse the URL into individual params:
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const AString & URL = a_Request.GetURL();
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size_t idxQM = URL.find('?');
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if (idxQM != AString::npos)
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{
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cHTTPFormParser URLParams(cHTTPFormParser::fpkURL, URL.c_str() + idxQM + 1, URL.length() - idxQM - 1, *Data);
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URLParams.Finish();
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for (cHTTPFormParser::const_iterator itr = URLParams.begin(), end = URLParams.end(); itr != end; ++itr)
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{
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TemplateRequest.Request.Params[itr->first] = itr->second;
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} // for itr - URLParams[]
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}
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}
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// Try to get the template from the Lua template script
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if (ShouldWrapInTemplate)
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{
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if (m_TemplateScript.Call("ShowPage", this, &TemplateRequest, cLuaState::Return, Template))
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{
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cHTTPResponse Resp;
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Resp.SetContentType("text/html");
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a_Connection.Send(Resp);
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a_Connection.Send(Template.c_str(), Template.length());
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return;
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}
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a_Connection.SendStatusAndReason(500, "m_TemplateScript failed");
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return;
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}
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AString BaseURL = GetBaseURL(URL);
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AString Menu;
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Template = "{CONTENT}";
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AString FoundPlugin;
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for (PluginList::iterator itr = m_Plugins.begin(); itr != m_Plugins.end(); ++itr)
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{
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cWebPlugin * WebPlugin = *itr;
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std::list< std::pair<AString, AString> > NameList = WebPlugin->GetTabNames();
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for (std::list< std::pair<AString, AString> >::iterator Names = NameList.begin(); Names != NameList.end(); ++Names)
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{
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Menu += "<li><a href='" + BaseURL + WebPlugin->GetWebTitle().c_str() + "/" + (*Names).second + "'>" + (*Names).first + "</a></li>";
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}
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}
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sWebAdminPage Page = GetPage(TemplateRequest.Request);
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AString Content = Page.Content;
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FoundPlugin = Page.PluginName;
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if (!Page.TabName.empty())
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{
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FoundPlugin += " - " + Page.TabName;
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}
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if (FoundPlugin.empty()) // Default page
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{
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Content = GetDefaultPage();
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}
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int MemUsageKiB = cRoot::GetPhysicalRAMUsage();
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if (MemUsageKiB > 0)
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{
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ReplaceString(Template, "{MEM}", Printf("%.02f", (double)MemUsageKiB / 1024));
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ReplaceString(Template, "{MEMKIB}", Printf("%d", MemUsageKiB));
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}
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else
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{
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ReplaceString(Template, "{MEM}", "unknown");
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ReplaceString(Template, "{MEMKIB}", "unknown");
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}
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ReplaceString(Template, "{USERNAME}", a_Request.GetAuthUsername());
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ReplaceString(Template, "{MENU}", Menu);
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ReplaceString(Template, "{PLUGIN_NAME}", FoundPlugin);
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ReplaceString(Template, "{CONTENT}", Content);
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ReplaceString(Template, "{TITLE}", "MCServer");
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AString NumChunks;
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Printf(NumChunks, "%d", cRoot::Get()->GetTotalChunkCount());
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ReplaceString(Template, "{NUMCHUNKS}", NumChunks);
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cHTTPResponse Resp;
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Resp.SetContentType("text/html");
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a_Connection.Send(Resp);
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a_Connection.Send(Template.c_str(), Template.length());
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}
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void cWebAdmin::HandleRootRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
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{
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UNUSED(a_Request);
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static const char LoginForm[] = \
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"<h1>MCServer WebAdmin</h1>" \
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"<center>" \
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"<form method='get' action='webadmin/'>" \
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"<input type='submit' value='Log in'>" \
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"</form>" \
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"</center>";
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cHTTPResponse Resp;
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Resp.SetContentType("text/html");
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a_Connection.Send(Resp);
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a_Connection.Send(LoginForm, sizeof(LoginForm) - 1);
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a_Connection.FinishResponse();
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}
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sWebAdminPage cWebAdmin::GetPage(const HTTPRequest & a_Request)
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{
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sWebAdminPage Page;
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AStringVector Split = StringSplit(a_Request.Path, "/");
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// Find the plugin that corresponds to the requested path
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AString FoundPlugin;
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if (Split.size() > 1)
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{
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for (PluginList::iterator itr = m_Plugins.begin(); itr != m_Plugins.end(); ++itr)
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{
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if ((*itr)->GetWebTitle() == Split[1])
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{
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Page.Content = (*itr)->HandleWebRequest(&a_Request);
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cWebPlugin * WebPlugin = *itr;
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FoundPlugin = WebPlugin->GetWebTitle();
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AString TabName = WebPlugin->GetTabNameForRequest(&a_Request).first;
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Page.PluginName = FoundPlugin;
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Page.TabName = TabName;
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break;
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}
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}
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}
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// Return the page contents
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return Page;
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}
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AString cWebAdmin::GetDefaultPage(void)
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{
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AString Content;
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Content += "<h4>Server Name:</h4>";
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Content += "<p>" + AString( cRoot::Get()->GetServer()->GetServerID()) + "</p>";
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Content += "<h4>Plugins:</h4><ul>";
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cPluginManager * PM = cPluginManager::Get();
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const cPluginManager::PluginMap & List = PM->GetAllPlugins();
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for (cPluginManager::PluginMap::const_iterator itr = List.begin(); itr != List.end(); ++itr)
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{
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if (itr->second == NULL)
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{
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continue;
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}
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AppendPrintf(Content, "<li>%s V.%i</li>", itr->second->GetName().c_str(), itr->second->GetVersion());
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}
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Content += "</ul>";
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Content += "<h4>Players:</h4><ul>";
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cPlayerAccum PlayerAccum;
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cWorld * World = cRoot::Get()->GetDefaultWorld(); // TODO - Create a list of worlds and players
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if (World != NULL)
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{
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World->ForEachPlayer(PlayerAccum);
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Content.append(PlayerAccum.m_Contents);
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}
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Content += "</ul><br>";
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return Content;
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}
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AString cWebAdmin::GetBaseURL( const AString& a_URL)
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{
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return GetBaseURL(StringSplit(a_URL, "/"));
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}
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AString cWebAdmin::GetHTMLEscapedString(const AString & a_Input)
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{
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AString dst;
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dst.reserve(a_Input.length());
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// Loop over input and substitute HTML characters for their alternatives:
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size_t len = a_Input.length();
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for (size_t i = 0; i < len; i++)
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{
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switch (a_Input[i])
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{
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case '&': dst.append("&"); break;
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case '\'': dst.append("'"); break;
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case '"': dst.append("""); break;
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case '<': dst.append("<"); break;
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case '>': dst.append(">"); break;
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default:
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{
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dst.push_back(a_Input[i]);
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break;
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}
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} // switch (a_Input[i])
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} // for i - a_Input[]
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return dst;
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}
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AString cWebAdmin::GetBaseURL(const AStringVector & a_URLSplit)
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{
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AString BaseURL = "./";
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if (a_URLSplit.size() > 1)
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{
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for (unsigned int i = 0; i < a_URLSplit.size(); i++)
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{
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BaseURL += "../";
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}
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BaseURL += "webadmin/";
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}
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return BaseURL;
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}
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void cWebAdmin::OnRequestBegun(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
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{
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UNUSED(a_Connection);
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const AString & URL = a_Request.GetURL();
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if (
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(strncmp(URL.c_str(), "/webadmin", 9) == 0) ||
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(strncmp(URL.c_str(), "/~webadmin", 10) == 0)
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)
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{
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a_Request.SetUserData(new cWebadminRequestData(a_Request));
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return;
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}
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if (URL == "/")
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{
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// The root needs no body handler and is fully handled in the OnRequestFinished() call
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return;
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}
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// TODO: Handle other requests
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}
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void cWebAdmin::OnRequestBody(cHTTPConnection & a_Connection, cHTTPRequest & a_Request, const char * a_Data, size_t a_Size)
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{
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UNUSED(a_Connection);
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cRequestData * Data = (cRequestData *)(a_Request.GetUserData());
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if (Data == NULL)
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{
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return;
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}
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Data->OnBody(a_Data, a_Size);
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}
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void cWebAdmin::OnRequestFinished(cHTTPConnection & a_Connection, cHTTPRequest & a_Request)
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{
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const AString & URL = a_Request.GetURL();
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if (
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(strncmp(URL.c_str(), "/webadmin", 9) == 0) ||
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(strncmp(URL.c_str(), "/~webadmin", 10) == 0)
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)
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{
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HandleWebadminRequest(a_Connection, a_Request);
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}
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else if (URL == "/")
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{
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// The root needs no body handler and is fully handled in the OnRequestFinished() call
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HandleRootRequest(a_Connection, a_Request);
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}
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else
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{
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// TODO: Handle other requests
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}
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// Delete any request data assigned to the request:
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cRequestData * Data = (cRequestData *)(a_Request.GetUserData());
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delete Data;
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Data = NULL;
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}
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////////////////////////////////////////////////////////////////////////////////
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// cWebAdmin::cWebadminRequestData
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void cWebAdmin::cWebadminRequestData::OnBody(const char * a_Data, size_t a_Size)
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{
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m_Form.Parse(a_Data, a_Size);
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}
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