/** @file @author Stefan Frings */ #ifndef HTTPREQUEST_H #define HTTPREQUEST_H #include #include #include #include #include #include #include #include #include "httpglobal.h" #include "httplistenersettings.h" namespace qtwebapp { /** This object represents a single HTTP request. It reads the request from a TCP socket and provides getters for the individual parts of the request.

The follwing config settings are required:

  maxRequestSize=16000
  maxMultiPartSize=1000000
  

MaxRequestSize is the maximum size of a HTTP request. In case of multipart/form-data requests (also known as file-upload), the maximum size of the body must not exceed maxMultiPartSize. The body is always a little larger than the file itself. */ class DECLSPEC HttpRequest { Q_DISABLE_COPY(HttpRequest) friend class HttpSessionStore; public: /** Values for getStatus() */ enum RequestStatus {waitForRequest, waitForHeader, waitForBody, complete, abort}; /** Constructor. @param settings Configuration settings */ HttpRequest(QSettings* settings); /** Constructor. @param settings Configuration settings as a structure */ HttpRequest(const HttpListenerSettings& settings); /** Destructor. */ virtual ~HttpRequest(); /** Read the HTTP request from a socket. This method is called by the connection handler repeatedly until the status is RequestStatus::complete or RequestStatus::abort. @param socket Source of the data */ void readFromSocket(QTcpSocket* socket); /** Get the status of this reqeust. @see RequestStatus */ RequestStatus getStatus() const; /** Get the method of the HTTP request (e.g. "GET") */ QByteArray getMethod() const; /** Get the decoded path of the HTPP request (e.g. "/index.html") */ QByteArray getPath() const; /** Get the raw path of the HTTP request (e.g. "/file%20with%20spaces.html") */ const QByteArray& getRawPath() const; /** Get the version of the HTPP request (e.g. "HTTP/1.1") */ QByteArray getVersion() const; /** Get the value of a HTTP request header. @param name Name of the header, not case-senitive. @return If the header occurs multiple times, only the last one is returned. */ QByteArray getHeader(const QByteArray& name) const; /** Get the values of a HTTP request header. @param name Name of the header, not case-senitive. */ QList getHeaders(const QByteArray& name) const; /** * Get all HTTP request headers. Note that the header names * are returned in lower-case. */ QMultiMap getHeaderMap() const; /** Get the value of a HTTP request parameter. @param name Name of the parameter, case-sensitive. @return If the parameter occurs multiple times, only the last one is returned. */ QByteArray getParameter(const QByteArray& name) const; /** Get the values of a HTTP request parameter. @param name Name of the parameter, case-sensitive. */ QList getParameters(const QByteArray& name) const; /** Get all HTTP request parameters. */ QMultiMap getParameterMap() const; /** Get the HTTP request body. */ QByteArray getBody() const; /** Decode an URL parameter. E.g. replace "%23" by '#' and replace '+' by ' '. @param source The url encoded strings @see QUrl::toPercentEncoding for the reverse direction */ static QByteArray urlDecode(const QByteArray source); /** Get an uploaded file. The file is already open. It will be closed and deleted by the destructor of this HttpRequest object (after processing the request).

For uploaded files, the method getParameters() returns the original fileName as provided by the calling web browser. */ QTemporaryFile* getUploadedFile(const QByteArray fieldName) const; /** Get the value of a cookie. @param name Name of the cookie */ QByteArray getCookie(const QByteArray& name) const; /** Get all cookies. */ QMap& getCookieMap(); /** Get the address of the connected client. Note that multiple clients may have the same IP address, if they share an internet connection (which is very common). */ QHostAddress getPeerAddress() const; private: /** Request headers */ QMultiMap headers; /** Parameters of the request */ QMultiMap parameters; /** Uploaded files of the request, key is the field name. */ QMap uploadedFiles; /** Received cookies */ QMap cookies; /** Storage for raw body data */ QByteArray bodyData; /** Request method */ QByteArray method; /** Request path (in raw encoded format) */ QByteArray path; /** Request protocol version */ QByteArray version; /** Status of this request. For the state engine. @see RequestStatus */ RequestStatus status; /** Address of the connected peer. */ QHostAddress peerAddress; /** Maximum size of requests in bytes. */ int maxSize; /** Maximum allowed size of multipart forms in bytes. */ int maxMultiPartSize; /** Current size */ int currentSize; /** Expected size of body */ int expectedBodySize; /** Name of the current header, or empty if no header is being processed */ QByteArray currentHeader; /** Boundary of multipart/form-data body. Empty if there is no such header */ QByteArray boundary; /** Temp file, that is used to store the multipart/form-data body */ QTemporaryFile* tempFile; /** Parse the multipart body, that has been stored in the temp file. */ void parseMultiPartFile(); /** Sub-procedure of readFromSocket(), read the first line of a request. */ void readRequest(QTcpSocket* socket); /** Sub-procedure of readFromSocket(), read header lines. */ void readHeader(QTcpSocket* socket); /** Sub-procedure of readFromSocket(), read the request body. */ void readBody(QTcpSocket* socket); /** Sub-procedure of readFromSocket(), extract and decode request parameters. */ void decodeRequestParams(); /** Sub-procedure of readFromSocket(), extract cookies from headers */ void extractCookies(); /** Buffer for collecting characters of request and header lines */ QByteArray lineBuffer; }; } // end of namespace #endif // HTTPREQUEST_H