Spezialfunktionen
- Audit Trail Panel
- Authentifikation über Kerberos
- C#-API
- Common Name Service (CNS)
- COM in WinCC OA
- OLE DB-Provider
- CtrlExtension
- CTRL OA Unit
- DBLogger
- Eingaben-Aufzeichnung
- Generic Dialog Framework
- HTTP-Server
  - HTTP-Server - Voraussetzungen und Installation
  - HTTPS (SSL-Verbindungen)
  - Root-Zertifikat und Vertrauenswürdige Zertifizierungsstelle für Browser
  - Die WinCC OA Standard HTML-Seiten
  - HTTP Basiskonfiguration
  - WinCC OA Tags (Interpreterstring)
  - WinCC OA HTML-Referenzen
  - Aufruf von HTML-Referenzen
  - SQL-Abfrage im HTTP-Server
  - Arbeiten mit den WinCC OA Standard-HTML Seiten
  - Erstellen von eigenen Seiten
  - HTTP-Server Control Funktionen
    - html_ref()
      This function loads a reference into an HTML reference. The parameters will be replaced.
    - httpAccessLog()
      Creates an httpAccess.log file in the log directory and writes a log line for each HTTP request into the file.
    - httpCloseWebSocket()
      The function closes web sockets.
    - httpConnect()
      Registers a CTRL function as a Web resource
    - httpDisconnect()
      Remove a registered Web-Resource
    - httpGetAllHeaders()
      The function returns a mapping of all HTTP headers.
    - httpGetContent()
      This function extracts the content of the currently processing HTTP-Request.
    - httpGetHeader()
      Returns the value of the header (== key) of the last HTTP message.
    - httpGetLanguage()
      The function checks the stated client connection and returns a matching language ID. The function httpGetLanguageId() can be used to keep the same functionality but have a OaLanguage enum value returned.
    - httpGetLanguageId()
      The function checks the stated client connection and returns a matching OaLanguage enum value. This function provides the same functionality as httpGetLanguage(), but uses the new OaLanguage enum as return value.
    - httpGetMethod()
      The function returns the HTTP method of the last HTTP message.
    - httpGetPort()
      Returns the port and connection used for the HTTP request.
    - httpGetQuery()
      Returns the HTTP query elements as key/value pairs
    - httpGetURI()
      Returns the last from the Client (index) requested URI from the HTTP server.
    - httpMakeParamString()
      Returns a string from the passed arguments that represents the query part of a URL.
    - httpOnConnectionClose()
      The function starts the specified callBack function when the HTTP connection is closed.
    - httpParseDate()
      Allows parsing an RFC-2616 conform date string, e.g. from header "If-Modified-Since".
    - httpReadWebSocket()
      The function reads web sockets.
    - httpSaveFilesFromUpload()
      The function returns the HTTP content of a Blob variable that was received from an HTTP client via an HTML form. The function copies the content of this blob variable (a file) into a directory.
    - httpServer()
      Installs and activates an HTTP server.
    - httpSetMaxAge()
      Defines the time in seconds how long files should be cached by the client.
    - httpSetMaxContentLength()
      Sets the maximum length of a POST request.
    - httpSetMethodHandler()
      The function can be used to redirect an HTTP method to a user-defined CTRL callback function.
    - httpSetPermission()
      The function httpSetPemission() allows to define more fine grained user permissions for a specific URL used with the HTTP Server.
    - httpSetSecondaryAuthSuccess()
      The function is used to check for secondary authentification and implement a login delay.
    - httpSetUlcUserName()
      Sets the userName that will be used for the ULC_UX/ulc_ux_basics.html.
    - httpWriteWebSocket()
      The function writes web sockets.
- DP Identification
- Insights Hub Connector
- Nachrichten-Komprimierung
- Node-RED
- Paneltopologie/Summenmeldung
- Redundante Netzwerkverbindungen
- Redundanz
- XML Reporting
- Reporting mit Panels (Silent print)
- Rezepte
- Scheduler
- Security
- Grundlagen zum Panel "System Bedienanweisung"
- Systemübersicht
- Alive-Mechanismus bei Managerverbindungen
- Encryption
- Verteilte Systeme
- Wartungspaket
- Wizard-Framework
- XML-Panelformat
- XML-RPC
- XMPP

httpGetContent()

This function extracts the content of the currently processing HTTP-Request.

Synopsis

int httpGetContent(int idx, <string|blob> content);

Parameter


Parameter	Description
idx	The client index (internal number of the client).
content	Place the content is saved to.

Return value

Returns 0 upon success.

Error

Returns -1 when an error occurs. Errors include:

missing arguments
inapplicable indexes
httpServer() is not installed.

Description

The function extracts the content of the processing HTTP-Request, therefore it can only be used inside the callBack function.

In case of the content being recieved in a "text/..." type the data is recorded in the language currently active within the project.

Anmerkung: The use of the httpGetContent() is not possible in a callback to a POST function, since the content is already passed as a "blob" argument to the callback and cannot be delivered again.

Assignment

CTRL PlugIn

Availability

CTRL, UI