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< td align = "right" valign = "center" > < img src = "logo32.png" align = "right" width = "64" height = "32" border = "0" > < / td > < / tr > < / table > < h1 align = center > TQHttpHeader Class Reference< br > < small > [< a href = "network.html" > network module< / a > ]< / small > < / h1 >
< p > The TQHttpHeader class contains header information for HTTP.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "qhttp-h.html" > ntqhttp.h< / a > > < / tt >
< p > Inherited by < a href = "qhttpresponseheader.html" > TQHttpResponseHeader< / a > and < a href = "qhttprequestheader.html" > TQHttpRequestHeader< / a > .
< p > < a href = "qhttpheader-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > < a href = "#TQHttpHeader" > < b > TQHttpHeader< / b > < / a > ()< / li >
< li class = fn > < a href = "#TQHttpHeader-2" > < b > TQHttpHeader< / b > < / a > ( const TQHttpHeader & header )< / li >
< li class = fn > < a href = "#TQHttpHeader-3" > < b > TQHttpHeader< / b > < / a > ( const TQString & str )< / li >
< li class = fn > virtual < a href = "#~TQHttpHeader" > < b > ~TQHttpHeader< / b > < / a > ()< / li >
< li class = fn > TQHttpHeader & < a href = "#operator-eq" > < b > operator=< / b > < / a > ( const TQHttpHeader & h )< / li >
< li class = fn > TQString < a href = "#value" > < b > value< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > void < a href = "#setValue" > < b > setValue< / b > < / a > ( const TQString & key, const TQString & value )< / li >
< li class = fn > void < a href = "#removeValue" > < b > removeValue< / b > < / a > ( const TQString & key )< / li >
< li class = fn > TQStringList < a href = "#keys" > < b > keys< / b > < / a > () const< / li >
< li class = fn > bool < a href = "#hasKey" > < b > hasKey< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > bool < a href = "#hasContentLength" > < b > hasContentLength< / b > < / a > () const< / li >
< li class = fn > uint < a href = "#contentLength" > < b > contentLength< / b > < / a > () const< / li >
< li class = fn > void < a href = "#setContentLength" > < b > setContentLength< / b > < / a > ( int len )< / li >
< li class = fn > bool < a href = "#hasContentType" > < b > hasContentType< / b > < / a > () const< / li >
< li class = fn > TQString < a href = "#contentType" > < b > contentType< / b > < / a > () const< / li >
< li class = fn > void < a href = "#setContentType" > < b > setContentType< / b > < / a > ( const TQString & type )< / li >
< li class = fn > virtual TQString < a href = "#toString" > < b > toString< / b > < / a > () const< / li >
< li class = fn > bool < a href = "#isValid" > < b > isValid< / b > < / a > () const< / li >
< li class = fn > virtual int < a href = "#majorVersion" > < b > majorVersion< / b > < / a > () const = 0< / li >
< li class = fn > virtual int < a href = "#minorVersion" > < b > minorVersion< / b > < / a > () const = 0< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
The TQHttpHeader class contains header information for HTTP.
< p >
< p > In most cases you should use the more specialized derivatives of
this class, < a href = "qhttpresponseheader.html" > TQHttpResponseHeader< / a > and < a href = "qhttprequestheader.html" > TQHttpRequestHeader< / a > , rather
than directly using TQHttpHeader.
< p > TQHttpHeader provides the HTTP header fields. A HTTP header field
consists of a name followed by a colon, a single space, and the
field value. (See RFC 1945.) Field names are case-insensitive. A
typical header field looks like this:
< pre >
content-type: text/html
< / pre >
< p > In the API the header field name is called the "key" and the
content is called the "value". You can get and set a header
field's value by using its key with < a href = "#value" > value< / a > () and < a href = "#setValue" > setValue< / a > (), e.g.
< pre >
header.setValue( "content-type", "text/html" );
< a href = "ntqstring.html" > TQString< / a > contentType = header.value( "content-type" );
< / pre >
< p > Some fields are so common that getters and setters are provided
for them as a convenient alternative to using < a href = "#value" > value< / a > () and
< a href = "#setValue" > setValue< / a > (), e.g. < a href = "#contentLength" > contentLength< / a > () and < a href = "#contentType" > contentType< / a > (),
< a href = "#setContentLength" > setContentLength< / a > () and < a href = "#setContentType" > setContentType< / a > ().
< p > Each header key has a < em > single< / em > value associated with it. If you
set the value for a key which already exists the previous value
will be discarded.
< p > < p > See also < a href = "qhttprequestheader.html" > TQHttpRequestHeader< / a > , < a href = "qhttpresponseheader.html" > TQHttpResponseHeader< / a > , and < a href = "io.html" > Input/Output and Networking< / a > .
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQHttpHeader" > < / a > TQHttpHeader::TQHttpHeader ()
< / h3 >
Constructs an empty HTTP header.
< h3 class = fn > < a name = "TQHttpHeader-2" > < / a > TQHttpHeader::TQHttpHeader ( const < a href = "qhttpheader.html" > TQHttpHeader< / a > & header )
< / h3 >
Constructs a copy of < em > header< / em > .
< h3 class = fn > < a name = "TQHttpHeader-3" > < / a > TQHttpHeader::TQHttpHeader ( const < a href = "ntqstring.html" > TQString< / a > & str )
< / h3 >
Constructs a HTTP header for < em > str< / em > .
< p > This constructor parses the string < em > str< / em > for header fields and
adds this information. The < em > str< / em > should consist of one or more
"\r\n" delimited lines; each of these lines should have the format
key, colon, space, value.
< h3 class = fn > < a name = "~TQHttpHeader" > < / a > TQHttpHeader::~TQHttpHeader ()< tt > [virtual]< / tt >
< / h3 >
Destructor.
< h3 class = fn > uint < a name = "contentLength" > < / a > TQHttpHeader::contentLength () const
< / h3 >
Returns the value of the special HTTP header field < tt > content-length< / tt > .
< p > < p > See also < a href = "#setContentLength" > setContentLength< / a > () and < a href = "#hasContentLength" > hasContentLength< / a > ().
< h3 class = fn > < a href = "ntqstring.html" > TQString< / a > < a name = "contentType" > < / a > TQHttpHeader::contentType () const
< / h3 >
Returns the value of the special HTTP header field < tt > content-type< / tt > .
< p > < p > See also < a href = "#setContentType" > setContentType< / a > () and < a href = "#hasContentType" > hasContentType< / a > ().
< h3 class = fn > bool < a name = "hasContentLength" > < / a > TQHttpHeader::hasContentLength () const
< / h3 >
Returns TRUE if the header has an entry for the special HTTP
header field < tt > content-length< / tt > ; otherwise returns FALSE.
< p > < p > See also < a href = "#contentLength" > contentLength< / a > () and < a href = "#setContentLength" > setContentLength< / a > ().
< h3 class = fn > bool < a name = "hasContentType" > < / a > TQHttpHeader::hasContentType () const
< / h3 >
Returns TRUE if the header has an entry for the the special HTTP
header field < tt > content-type< / tt > ; otherwise returns FALSE.
< p > < p > See also < a href = "#contentType" > contentType< / a > () and < a href = "#setContentType" > setContentType< / a > ().
< h3 class = fn > bool < a name = "hasKey" > < / a > TQHttpHeader::hasKey ( const < a href = "ntqstring.html" > TQString< / a > & key ) const
< / h3 >
Returns TRUE if the HTTP header has an entry with the given < em > key< / em > ; otherwise returns FALSE.
< p > < p > See also < a href = "#value" > value< / a > (), < a href = "#setValue" > setValue< / a > (), and < a href = "#keys" > keys< / a > ().
< h3 class = fn > bool < a name = "isValid" > < / a > TQHttpHeader::isValid () const
< / h3 >
Returns TRUE if the HTTP header is valid; otherwise returns FALSE.
< p > A TQHttpHeader is invalid if it was created by parsing a malformed string.
< h3 class = fn > < a href = "ntqstringlist.html" > TQStringList< / a > < a name = "keys" > < / a > TQHttpHeader::keys () const
< / h3 >
Returns a list of the keys in the HTTP header.
< p > < p > See also < a href = "#hasKey" > hasKey< / a > ().
< h3 class = fn > int < a name = "majorVersion" > < / a > TQHttpHeader::majorVersion () const< tt > [pure virtual]< / tt >
< / h3 >
< p > Returns the major protocol-version of the HTTP header.
< p > Reimplemented in < a href = "qhttpresponseheader.html#majorVersion" > TQHttpResponseHeader< / a > and < a href = "qhttprequestheader.html#majorVersion" > TQHttpRequestHeader< / a > .
< h3 class = fn > int < a name = "minorVersion" > < / a > TQHttpHeader::minorVersion () const< tt > [pure virtual]< / tt >
< / h3 >
< p > Returns the minor protocol-version of the HTTP header.
< p > Reimplemented in < a href = "qhttpresponseheader.html#minorVersion" > TQHttpResponseHeader< / a > and < a href = "qhttprequestheader.html#minorVersion" > TQHttpRequestHeader< / a > .
< h3 class = fn > < a href = "qhttpheader.html" > TQHttpHeader< / a > & < a name = "operator-eq" > < / a > TQHttpHeader::operator= ( const < a href = "qhttpheader.html" > TQHttpHeader< / a > & h )
< / h3 >
Assigns < em > h< / em > and returns a reference to this http header.
< h3 class = fn > void < a name = "removeValue" > < / a > TQHttpHeader::removeValue ( const < a href = "ntqstring.html" > TQString< / a > & key )
< / h3 >
Removes the entry with the key < em > key< / em > from the HTTP header.
< p > < p > See also < a href = "#value" > value< / a > () and < a href = "#setValue" > setValue< / a > ().
< h3 class = fn > void < a name = "setContentLength" > < / a > TQHttpHeader::setContentLength ( int len )
< / h3 >
Sets the value of the special HTTP header field < tt > content-length< / tt >
to < em > len< / em > .
< p > < p > See also < a href = "#contentLength" > contentLength< / a > () and < a href = "#hasContentLength" > hasContentLength< / a > ().
< h3 class = fn > void < a name = "setContentType" > < / a > TQHttpHeader::setContentType ( const < a href = "ntqstring.html" > TQString< / a > & type )
< / h3 >
Sets the value of the special HTTP header field < tt > content-type< / tt > to
< em > type< / em > .
< p > < p > See also < a href = "#contentType" > contentType< / a > () and < a href = "#hasContentType" > hasContentType< / a > ().
< p > Example: < a href = "archivesearch-example.html#x475" > network/archivesearch/archivedialog.ui.h< / a > .
< h3 class = fn > void < a name = "setValue" > < / a > TQHttpHeader::setValue ( const < a href = "ntqstring.html" > TQString< / a > & key, const < a href = "ntqstring.html" > TQString< / a > & value )
< / h3 >
Sets the value of the entry with the < em > key< / em > to < em > value< / em > .
< p > If no entry with < em > key< / em > exists, a new entry with the given < em > key< / em >
and < em > value< / em > is created. If an entry with the < em > key< / em > already
exists, its value is discarded and replaced with the given < em > value< / em > .
< p > < p > See also < a href = "#value" > value< / a > (), < a href = "#hasKey" > hasKey< / a > (), and < a href = "#removeValue" > removeValue< / a > ().
< p > Example: < a href = "archivesearch-example.html#x476" > network/archivesearch/archivedialog.ui.h< / a > .
< h3 class = fn > < a href = "ntqstring.html" > TQString< / a > < a name = "toString" > < / a > TQHttpHeader::toString () const< tt > [virtual]< / tt >
< / h3 >
Returns a string representation of the HTTP header.
< p > The string is suitable for use by the constructor that takes a
< a href = "ntqstring.html" > TQString< / a > . It consists of lines with the format: key, colon, space,
value, "\r\n".
< h3 class = fn > < a href = "ntqstring.html" > TQString< / a > < a name = "value" > < / a > TQHttpHeader::value ( const < a href = "ntqstring.html" > TQString< / a > & key ) const
< / h3 >
Returns the value for the entry with the given < em > key< / em > . If no entry
has this < em > key< / em > , an empty string is returned.
< p > < p > See also < a href = "#setValue" > setValue< / a > (), < a href = "#removeValue" > removeValue< / a > (), < a href = "#hasKey" > hasKey< / a > (), and < a href = "#keys" > keys< / a > ().
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