KProtocolInfo

#include <KProtocolInfo>

Classes
struct	ExtraField

Public Types
typedef QList< ExtraField >	ExtraFieldList

enum	FileNameUsedForCopying { Name , FromUrl , DisplayName }

enum	Type { T_STREAM , T_FILESYSTEM , T_NONE , T_ERROR }

Static Public Member Functions
static QStringList	archiveMimetypes (const QString &protocol)

static QStringList	capabilities (const QString &protocol)

static QString	config (const QString &protocol)

static QString	defaultMimetype (const QString &protocol)

static bool	determineMimetypeFromExtension (const QString &protocol)

static QString	docPath (const QString &protocol)

static QString	exec (const QString &protocol)

static ExtraFieldList	extraFields (const QUrl &url)

static QString	icon (const QString &protocol)

static bool	isFilterProtocol (const QString &protocol)

static bool	isFilterProtocol (const QUrl &url)

static bool	isHelperProtocol (const QString &protocol)

static bool	isHelperProtocol (const QUrl &url)

static bool	isKnownProtocol (const QString &protocol, bool updateCacheIfNotfound=true)

static bool	isKnownProtocol (const QUrl &url)

static int	maxWorkers (const QString &protocol)

static int	maxWorkersPerHost (const QString &protocol)

static QString	protocolClass (const QString &protocol)

static QStringList	protocols ()

static QString	proxiedBy (const QString &protocol)

static bool	showFilePreview (const QString &protocol)

Detailed Description

Information about I/O (Internet, etc.) protocols supported by KDE.

KProtocolInfo is useful if you want to know which protocols KDE supports. In addition you can find out lots of information about a certain protocol. All of the functionality is provided by the static methods. The implementation scans the *.protocol files of all installed KIO workers to get this information and stores the result into an internal cache.

*.protocol files are installed in the "services" resource.

The KProtocolInfo methods are reentrant (i.e. can be called from multiple threads simultaneously).

Definition at line 33 of file kprotocolinfo.h.

Member Typedef Documentation

◆ ExtraFieldList

typedef QList<ExtraField> KProtocolInfo::ExtraFieldList

Definition at line 111 of file kprotocolinfo.h.

Member Enumeration Documentation

◆ FileNameUsedForCopying

enum KProtocolInfo::FileNameUsedForCopying

Definition at line 321 of file kprotocolinfo.h.

◆ Type

enum KProtocolInfo::Type

Describes the type of a protocol.

For instance ftp:// appears as a filesystem with folders and files, while bzip2:// appears as a single file (a stream of data), and telnet:// doesn't output anything.

See also: outputType

Enumerator
T_STREAM	stream of data (e.g. single file)
T_FILESYSTEM	structured directory
T_NONE	no information about the type available
T_ERROR	used to signal an error

Definition at line 81 of file kprotocolinfo.h.

Member Function Documentation

◆ archiveMimetypes()

QStringList KProtocolInfo::archiveMimetypes ( const QString & protocol )

static

Returns the list of archive MIME types handled by the KIO worker implementing this protocol.

This corresponds to the "archiveMimetype=" field in the protocol description file.

Parameters

protocol the protocol to check

Returns: the list of archive MIME types (e.g. application/x-zip) handled.

Since: 5.23

Definition at line 279 of file kprotocolinfo.cpp.

◆ capabilities()

QStringList KProtocolInfo::capabilities ( const QString & protocol )

static

Returns the list of capabilities provided by the KIO worker implementing this protocol.

This corresponds to the "Capabilities=" field in the protocol description file.

The capability names are not defined globally, they are up to each worker implementation. For example when adding support for a new special command for mounting, one would add the string "Mount" to the capabilities list, and applications could check for that string before sending a special() command that would otherwise do nothing on older KIO worker implementations.

Parameters

protocol the protocol to check

Returns: the list of capabilities.

Definition at line 269 of file kprotocolinfo.cpp.

◆ config()

QString KProtocolInfo::config ( const QString & protocol )

static

Returns the name of the config file associated with the specified protocol.

This is useful if two similar protocols need to share a single config file, e.g. http and https.

This corresponds to the "config=" field in the protocol description file. The default is the protocol name, see name()

Parameters

protocol the protocol to check

Returns: the config file, or an empty string if unknown

Definition at line 170 of file kprotocolinfo.cpp.

◆ defaultMimetype()

QString KProtocolInfo::defaultMimetype ( const QString & protocol )

static

Returns the default MIME type for the specified protocol, if one exists.

This corresponds to the "defaultMimetype=" field in the protocol description file.

Parameters

protocol the protocol to check

Returns: the default MIME type of the protocol, or an empty string if none set or protocol unknown

Since: 5.60

Definition at line 230 of file kprotocolinfo.cpp.

◆ determineMimetypeFromExtension()

bool KProtocolInfo::determineMimetypeFromExtension ( const QString & protocol )

static

Returns whether MIME types can be determined based on extension for this protocol.

For some protocols, e.g. http, the filename extension in the URL can not be trusted to truly reflect the file type.

This corresponds to the "determineMimetypeFromExtension=" field in the protocol description file. Valid values for this field are "true" (default) or "false".

Parameters

protocol the protocol to check

Returns: true if the MIME types can be determined by extension

Definition at line 201 of file kprotocolinfo.cpp.

◆ docPath()

QString KProtocolInfo::docPath ( const QString & protocol )

static

Returns the documentation path for the specified protocol.

This corresponds to the "X-DocPath=" or "DocPath=" field in the protocol description file.

Parameters

protocol the protocol to check

Returns: the docpath of the protocol, or an empty string if unknown

Definition at line 240 of file kprotocolinfo.cpp.

◆ exec()

QString KProtocolInfo::exec ( const QString & protocol )

static

Returns the library / executable to open for the protocol protocol Example : "kio_ftp", meaning either the executable "kio_ftp" or the library "kio_ftp.la" (recommended), whichever is available.

This corresponds to the "exec=" field in the protocol description file.

Parameters

protocol the protocol to check

Returns: the executable of library to open, or QString() for unsupported protocols

See also: KUrl::protocol()

Definition at line 211 of file kprotocolinfo.cpp.

◆ extraFields()

KProtocolInfo::ExtraFieldList KProtocolInfo::extraFields ( const QUrl & url )

static

Definition of extra fields in the UDS entries, returned by a listDir operation.

This corresponds to the "ExtraNames=" and "ExtraTypes=" fields in the protocol description file. Those two lists should be separated with ',' in the protocol description file. See ExtraField for details about names and types

Definition at line 220 of file kprotocolinfo.cpp.

◆ icon()

QString KProtocolInfo::icon ( const QString & protocol )

static

Returns the name of the icon, associated with the specified protocol.

This corresponds to the "Icon=" field in the protocol description file.

Parameters

protocol the protocol to check

Returns: the icon of the protocol, or an empty string if unknown

Definition at line 155 of file kprotocolinfo.cpp.

◆ isFilterProtocol() [1/2]

bool KProtocolInfo::isFilterProtocol ( const QString & protocol )

static

Same as above except you can supply just the protocol instead of the whole URL.

Definition at line 144 of file kprotocolinfo.cpp.

◆ isFilterProtocol() [2/2]

bool KProtocolInfo::isFilterProtocol ( const QUrl & url )

static

Returns whether the protocol can act as a filter protocol.

A filter protocol can operate on data that is passed to it but does not retrieve/store data itself, like gzip. A filter protocol is the opposite of a source protocol.

The "source=" field in the protocol description file determines whether a protocol is a source protocol or a filter protocol. Valid values for this field are "true" (default) for source protocol or "false" for filter protocol.

Parameters

url	the url to check

Returns: true if the protocol is a filter (e.g. gzip), false if the protocol is a helper or source

Definition at line 299 of file kprotocolinfo.cpp.

◆ isHelperProtocol() [1/2]

bool KProtocolInfo::isHelperProtocol ( const QString & protocol )

static

Same as above except you can supply just the protocol instead of the whole URL.

Definition at line 309 of file kprotocolinfo.cpp.

◆ isHelperProtocol() [2/2]

bool KProtocolInfo::isHelperProtocol ( const QUrl & url )

static

Returns whether the protocol can act as a helper protocol.

A helper protocol invokes an external application and does not return a file or stream.

This corresponds to the "helper=" field in the protocol description file. Valid values for this field are "true" or "false" (default).

Parameters

url	the url to check

Returns: true if the protocol is a helper protocol (e.g. vnc), false if not (e.g. http)

Definition at line 304 of file kprotocolinfo.cpp.

◆ isKnownProtocol() [1/2]

bool KProtocolInfo::isKnownProtocol	(	const QString &	protocol,
		bool	updateCacheIfNotfound = true )

static

Same as above except you can supply just the protocol instead of the whole URL.

Definition at line 324 of file kprotocolinfo.cpp.

◆ isKnownProtocol() [2/2]

bool KProtocolInfo::isKnownProtocol ( const QUrl & url )

static

Returns whether a protocol is installed that is able to handle url.

Parameters

url	the url to check

Returns: true if the protocol is known

See also: name()

Definition at line 319 of file kprotocolinfo.cpp.

◆ maxWorkers()

int KProtocolInfo::maxWorkers ( const QString & protocol )

static

Returns the soft limit on the number of KIO workers for this protocol.

This limits the number of workers used for a single operation, note that multiple operations may result in a number of instances that exceeds this soft limit.

This corresponds to the "maxInstances=" field in the protocol's worker metadata. The default is 1.

Parameters

protocol the protocol to check

Returns: the maximum number of workers, or 1 if unknown

Since: 5.101

Definition at line 181 of file kprotocolinfo.cpp.

◆ maxWorkersPerHost()

int KProtocolInfo::maxWorkersPerHost ( const QString & protocol )

static

Returns the limit on the number of KIO workers for this protocol per host.

This corresponds to the "maxInstancesPerHost=" field in the protocol's worker metadata. The default is 0 which means there is no per host limit.

Parameters

protocol the protocol to check

Returns: the maximum number of workers, or 1 if unknown

Since: 5.101

Definition at line 191 of file kprotocolinfo.cpp.

◆ protocolClass()

QString KProtocolInfo::protocolClass ( const QString & protocol )

static

Returns the protocol class for the specified protocol.

This corresponds to the "Class=" field in the protocol description file.

The following classes are defined:

":internet" for common internet protocols
":local" for protocols that access local resources

Protocol classes always start with a ':' so that they can not be confused with the protocols themselves.

Parameters

protocol the protocol to check

Returns: the class of the protocol, or an empty string if unknown

Definition at line 250 of file kprotocolinfo.cpp.

◆ protocols()

QStringList KProtocolInfo::protocols ( )

static

Returns list of all known protocols.

Returns: a list of all known protocols

Definition at line 139 of file kprotocolinfo.cpp.

◆ proxiedBy()

QString KProtocolInfo::proxiedBy ( const QString & protocol )

static

Returns the name of the protocol through which the request will be routed if proxy support is enabled.

A good example of this is the ftp protocol for which proxy support is commonly handled by the http protocol.

This corresponds to the "ProxiedBy=" in the protocol description file.

Definition at line 289 of file kprotocolinfo.cpp.

◆ showFilePreview()

bool KProtocolInfo::showFilePreview ( const QString & protocol )

static

Returns whether file previews should be shown for the specified protocol.

This corresponds to the "ShowPreviews=" field in the protocol description file.

By default previews are shown if protocolClass is :local.

Parameters

protocol the protocol to check

Returns: true if previews should be shown by default, false otherwise

Definition at line 260 of file kprotocolinfo.cpp.

The documentation for this class was generated from the following files:

KDE's Doxygen guidelines are available online.

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KProtocolInfo

Classes

Public Types

Static Public Member Functions

Detailed Description

Member Typedef Documentation

◆ ExtraFieldList

Member Enumeration Documentation

◆ FileNameUsedForCopying

◆ Type

Member Function Documentation

◆ archiveMimetypes()

◆ capabilities()

◆ config()

◆ defaultMimetype()

◆ determineMimetypeFromExtension()

◆ docPath()

◆ exec()

◆ extraFields()

◆ icon()

◆ isFilterProtocol() [1/2]

◆ isFilterProtocol() [2/2]

◆ isHelperProtocol() [1/2]

◆ isHelperProtocol() [2/2]

◆ isKnownProtocol() [1/2]

◆ isKnownProtocol() [2/2]

◆ maxWorkers()

◆ maxWorkersPerHost()

◆ protocolClass()

◆ protocols()

◆ proxiedBy()

◆ showFilePreview()