KIO::SlaveBase
#include <KIO/SlaveBase>

Public Types | |
enum | ButtonCode { Ok = 1, Cancel = 2, PrimaryAction = 3, SecondaryAction = 4, Continue = 5, Yes = PrimaryAction, No = SecondaryAction } |
enum | MessageBoxType { QuestionTwoActions = 1, WarningTwoActions = 2, WarningContinueCancel = 3, WarningTwoActionsCancel = 4, Information = 5, SSLMessageBox = 6, WarningContinueCancelDetailed = 10, QuestionYesNo = QuestionTwoActions, WarningYesNo = WarningTwoActions, WarningYesNoCancel = WarningTwoActionsCancel } |
Public Member Functions | |
SlaveBase (const QByteArray &protocol, const QByteArray &pool_socket, const QByteArray &app_socket) | |
void | addTemporaryAuthorization (const QString &action) |
MetaData | allMetaData () const |
bool | cacheAuthentication (const AuthInfo &info) |
void | canResume () |
bool | canResume (KIO::filesize_t offset) |
bool | checkCachedAuthentication (AuthInfo &info) |
virtual void | chmod (const QUrl &url, int permissions) |
virtual void | chown (const QUrl &url, const QString &owner, const QString &group) |
virtual void | close () |
virtual void | closeConnection () |
KConfigGroup * | config () |
bool | configValue (const QString &key, bool defaultValue) const |
QString | configValue (const QString &key, const QString &defaultValue=QString()) const |
int | configValue (const QString &key, int defaultValue) const |
void | connected () |
void | connectSlave (const QString &path) |
int | connectTimeout () |
virtual void | copy (const QUrl &src, const QUrl &dest, int permissions, JobFlags flags) |
void | data (const QByteArray &data) |
void | dataReq () |
virtual void | del (const QUrl &url, bool isfile) |
void | disconnectSlave () |
virtual void | dispatch (int command, const QByteArray &data) |
void | dispatchLoop () |
virtual void | dispatchOpenCommand (int command, const QByteArray &data) |
void | dropNetwork (const QString &host=QString()) |
void | error (int _errid, const QString &_text) |
void | errorPage () |
void | exit () |
void | finished () |
virtual void | get (const QUrl &url) |
bool | hasMetaData (const QString &key) const |
void | infoMessage (const QString &msg) |
virtual void | listDir (const QUrl &url) |
void | listEntries (const UDSEntryList &_entry) |
void | listEntry (const UDSEntry &_entry, bool ready) |
void | listEntry (const UDSEntry &entry) |
void | lookupHost (const QString &host) |
QMap< QString, QVariant > | mapConfig () const |
int | messageBox (const QString &text, MessageBoxType type, const QString &title=QString(), const QString &primaryActionText=QString(), const QString &secondaryActionText=QString(), const QString &dontAskAgainName=QString()) |
int | messageBox (MessageBoxType type, const QString &text, const QString &title=QString(), const QString &primaryActionText=QString(), const QString &secondaryActionText=QString()) |
QString | metaData (const QString &key) const |
void | mimeType (const QString &_type) |
virtual void | mimetype (const QUrl &url) |
virtual void | mkdir (const QUrl &url, int permissions) |
virtual void | multiGet (const QByteArray &data) |
void | needSubUrlData () |
virtual void | open (const QUrl &url, QIODevice::OpenMode mode) |
virtual void | openConnection () |
void | opened () |
bool | openPasswordDialog (KIO::AuthInfo &info, const QString &errorMsg=QString()) |
int | openPasswordDialogV2 (KIO::AuthInfo &info, const QString &errorMsg=QString()) |
void | position (KIO::filesize_t _pos) |
void | processedPercent (float percent) |
void | processedSize (KIO::filesize_t _bytes) |
int | proxyConnectTimeout () |
virtual void | put (const QUrl &url, int permissions, JobFlags flags) |
virtual void | read (KIO::filesize_t size) |
int | readData (QByteArray &buffer) |
int | readTimeout () |
void | redirection (const QUrl &_url) |
KRemoteEncoding * | remoteEncoding () |
virtual void | rename (const QUrl &src, const QUrl &dest, JobFlags flags) |
virtual void | reparseConfiguration () |
bool | requestNetwork (const QString &host=QString()) |
PrivilegeOperationStatus | requestPrivilegeOperation () |
PrivilegeOperationStatus | requestPrivilegeOperation (const QString &operationDetails) |
int | responseTimeout () |
virtual void | seek (KIO::filesize_t offset) |
void | sendAndKeepMetaData () |
void | sendMetaData () |
virtual void | setHost (const QString &host, quint16 port, const QString &user, const QString &pass) |
void | setKillFlag () |
virtual void | setLinkDest (const QUrl &url, const QString &target) |
void | setMetaData (const QString &key, const QString &value) |
virtual void | setModificationTime (const QUrl &url, const QDateTime &mtime) |
virtual void | setSubUrl (const QUrl &url) |
void | setTimeoutSpecialCommand (int timeout, const QByteArray &data=QByteArray()) |
virtual void | slave_status () |
void | slaveStatus (const QString &host, bool connected) |
virtual void | special (const QByteArray &data) |
void | speed (unsigned long _bytes_per_second) |
virtual void | stat (const QUrl &url) |
void | statEntry (const UDSEntry &_entry) |
virtual void | symlink (const QString &target, const QUrl &dest, JobFlags flags) |
void | totalSize (KIO::filesize_t _bytes) |
void | truncated (KIO::filesize_t _length) |
int | waitForAnswer (int expected1, int expected2, QByteArray &data, int *pCmd=nullptr) |
int | waitForHostInfo (QHostInfo &info) |
void | warning (const QString &msg) |
bool | wasKilled () const |
virtual void | write (const QByteArray &data) |
void | written (KIO::filesize_t _bytes) |
Protected Types | |
enum | VirtualFunctionId { AppConnectionMade = 0, GetFileSystemFreeSpace = 1, Truncate = 2 } |
Protected Member Functions | |
virtual void | virtual_hook (int id, void *data) |
Protected Attributes | |
MetaData | mIncomingMetaData |
MetaData | mOutgoingMetaData |
QByteArray | mProtocol |
Detailed Description
There are two classes that specifies the protocol between application (job) and kioslave. SlaveInterface is the class to use on the application end, SlaveBase is the one to use on the slave end.
Slave implementations should simply inherit SlaveBase
A call to foo() results in a call to slotFoo() on the other end.
Note that a kioslave doesn't have a Qt event loop. When idle, it's waiting for a command on the socket that connects it to the application. So don't expect a kioslave to react to D-Bus signals for instance. KIOSlaves are short-lived anyway, so any kind of watching or listening for notifications should be done elsewhere, for instance in a kded module (see kio_desktop's desktopnotifier.cpp for an example).
If a kioslave needs a Qt event loop within the implementation of one method, e.g. to wait for an asynchronous operation to finish, that is possible, using QEventLoop.
- Deprecated:
- Since 5.96, use WorkerBase.
Definition at line 54 of file slavebase.h.
Member Enumeration Documentation
◆ ButtonCode
Button codes.
Should be kept in sync with KMessageBox::ButtonCode
Enumerator | |
---|---|
PrimaryAction |
|
SecondaryAction |
|
Yes |
|
No |
|
Definition at line 283 of file slavebase.h.
◆ MessageBoxType
Type of message box.
Should be kept in sync with KMessageBox::DialogType.
Enumerator | |
---|---|
QuestionTwoActions |
|
WarningTwoActions |
|
WarningTwoActionsCancel |
|
QuestionYesNo |
|
WarningYesNo |
|
WarningYesNoCancel |
|
Definition at line 261 of file slavebase.h.
Member Function Documentation
◆ addTemporaryAuthorization()
void SlaveBase::addTemporaryAuthorization | ( | const QString & | action | ) |
Adds action
to the list of PolicyKit actions which the slave is authorized to perform.
- Parameters
-
action the PolicyKit action
- Since
- 5.45
Definition at line 1670 of file slavebase.cpp.
◆ allMetaData()
MetaData SlaveBase::allMetaData | ( | ) | const |
for ForwardingSlaveBase Contains all metadata (but no config) sent by the application to the slave.
Definition at line 408 of file slavebase.cpp.
◆ cacheAuthentication()
bool SlaveBase::cacheAuthentication | ( | const AuthInfo & | info | ) |
Caches info
in a persistent storage like KWallet.
Note that calling openPasswordDialogV2 does not store passwords automatically for you (and has not since kdelibs 4.7).
Here is a simple example of how to use cacheAuthentication:
- Parameters
-
info See AuthInfo.
- Returns
true
ifinfo
was successfully cached.
Definition at line 1506 of file slavebase.cpp.
◆ canResume() [1/2]
void SlaveBase::canResume | ( | ) |
Call this at the beginning of get(), if the "range-start" metadata was set and returning byte ranges is implemented by this protocol.
Definition at line 619 of file slavebase.cpp.
◆ canResume() [2/2]
bool SlaveBase::canResume | ( | KIO::filesize_t | offset | ) |
Call this at the beginning of put(), to give the size of the existing partial file, if there is one.
The offset
argument notifies the other job (the one that gets the data) about the offset to use. In this case, the boolean returns whether we can indeed resume or not (we can't if the protocol doing the get() doesn't support setting an offset)
Definition at line 1108 of file slavebase.cpp.
◆ checkCachedAuthentication()
bool SlaveBase::checkCachedAuthentication | ( | AuthInfo & | info | ) |
Checks for cached authentication based on parameters given by info
.
Use this function to check if any cached password exists for the URL given by info
. If AuthInfo::realmValue
and/or AuthInfo::verifyPath
flag is specified, then they will also be factored in determining the presence of a cached password. Note that Auth::url
is a required parameter when attempting to check for cached authorization info. Here is a simple example:
- Parameters
-
info See AuthInfo.
- Returns
true
if cached Authorization is found, false otherwise.
Definition at line 1456 of file slavebase.cpp.
◆ chmod()
|
virtual |
Change permissions on url
.
The slave emits ERR_DOES_NOT_EXIST or ERR_CANNOT_CHMOD
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 993 of file slavebase.cpp.
◆ chown()
Change ownership of url
.
The slave emits ERR_DOES_NOT_EXIST or ERR_CANNOT_CHOWN
Definition at line 1001 of file slavebase.cpp.
◆ close()
|
virtual |
◆ closeConnection()
|
virtual |
Closes the connection (forced).
Called when the application disconnects the slave to close any open network connections.
When the slave was operating in connection-oriented mode, it should reset itself to connectionless (default) mode.
Definition at line 922 of file slavebase.cpp.
◆ config()
KConfigGroup * SlaveBase::config | ( | ) |
Returns a configuration object to query config/meta-data information from.
The application provides the slave with all configuration information relevant for the current protocol and host.
- Note
- Since 5.64 prefer to use mapConfig() or one of the configValue(...) overloads.
- Todo:
- Find replacements for the other current usages of this method.
Definition at line 444 of file slavebase.cpp.
◆ configValue() [1/3]
bool SlaveBase::configValue | ( | const QString & | key, |
bool | defaultValue | ||
) | const |
Returns a bool from the config/meta-data information.
- Since
- 5.64
Definition at line 429 of file slavebase.cpp.
◆ configValue() [2/3]
QString SlaveBase::configValue | ( | const QString & | key, |
const QString & | defaultValue = QString() |
||
) | const |
Returns a QString from the config/meta-data information.
- Since
- 5.64
Definition at line 439 of file slavebase.cpp.
◆ configValue() [3/3]
int SlaveBase::configValue | ( | const QString & | key, |
int | defaultValue | ||
) | const |
Returns an int from the config/meta-data information.
- Since
- 5.64
Definition at line 434 of file slavebase.cpp.
◆ connected()
void SlaveBase::connected | ( | ) |
Call in openConnection, if you reimplement it, when you're done.
Definition at line 546 of file slavebase.cpp.
◆ connectSlave()
void SlaveBase::connectSlave | ( | const QString & | path | ) |
internal function to connect a slave to/ disconnect from either the slave pool or the application
Definition at line 376 of file slavebase.cpp.
◆ connectTimeout()
int SlaveBase::connectTimeout | ( | ) |
- Returns
- timeout value for connecting to remote host.
Definition at line 1515 of file slavebase.cpp.
◆ copy()
|
virtual |
Copy src
into dest
.
By default, copy() is only called when copying a file from yourproto://host/path to yourproto://host/otherpath.
If you set copyFromFile=true then copy() will also be called when moving a file from file:///path to yourproto://host/otherpath. Otherwise such a copy would have to be done the slow way (get+put). See also KProtocolManager::canCopyFromFile().
If you set copyToFile=true then copy() will also be called when moving a file from yourproto: to file:. See also KProtocolManager::canCopyToFile().
If the slave returns an error ERR_UNSUPPORTED_ACTION, the job will ask for get + put instead.
If the slave returns an error ERR_FILE_ALREADY_EXIST, the job will ask for a different destination filename.
- Parameters
-
src where to copy the file from (decoded) dest where to copy the file to (decoded) permissions may be -1. In this case no special permission mode is set, and the owner and group permissions are not preserved. flags We support Overwrite here
Don't forget to set the modification time of dest
to be the modification time of src
.
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 977 of file slavebase.cpp.
◆ data()
void SlaveBase::data | ( | const QByteArray & | data | ) |
Sends data in the slave to the job (i.e. in get).
To signal end of data, simply send an empty QByteArray().
- Parameters
-
data the data read by the slave
Definition at line 485 of file slavebase.cpp.
◆ dataReq()
void SlaveBase::dataReq | ( | ) |
◆ del()
|
virtual |
Delete a file or directory.
- Parameters
-
url file/directory to delete isfile if true, a file should be deleted. if false, a directory should be deleted.
By default, del() on a directory should FAIL if the directory is not empty. However, if metadata("recurse") == "true", then the slave can do a recursive deletion. This behavior is only invoked if the slave specifies deleteRecursive=true in its protocol file.
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 981 of file slavebase.cpp.
◆ dispatch()
|
virtual |
Definition at line 1176 of file slavebase.cpp.
◆ dispatchLoop()
void SlaveBase::dispatchLoop | ( | ) |
Definition at line 312 of file slavebase.cpp.
◆ dispatchOpenCommand()
|
virtual |
Definition at line 1466 of file slavebase.cpp.
◆ dropNetwork()
Used by the slave to withdraw a connection requested by requestNetwork.
This function cancels the last call to requestNetwork. If a client uses more than one internet connection, it must use dropNetwork(host) to stop each request.
If KNetMgr is not running, then this is a no-op.
- Parameters
-
host the host passed to requestNetwork
A slave should call this function every time it disconnect from a host.
- Deprecated:
- Since 5.0, for a very very long time, not implemented anymore Probably dates back to model dialup times.
Definition at line 791 of file slavebase.cpp.
◆ error()
void SlaveBase::error | ( | int | _errid, |
const QString & | _text | ||
) |
Call to signal an error.
This also finishes the job, so you must not call finished() after calling this.
If the error code is KIO::ERR_SLAVE_DEFINED then the _text should contain the complete translated text of of the error message.
For all other error codes, _text should match the corresponding error code. Usually, _text is a file or host name, or the error which was passed from the server.
For example, for KIO::ERR_DOES_NOT_EXIST, _text may only be the file or folder which does not exist, nothing else. Otherwise, this would break error strings generated by KIO::buildErrorString().
If you have to add more details than what the standard error codes provide, you'll need to use KIO::ERR_SLAVE_DEFINED. For a complete list of what _text should contain for each error code, look at the source of KIO::buildErrorString().
You can add rich text markup to the message, the places where the error message will be displayed are rich text aware.
- See also
- KIO::Error
- KIO::buildErrorString
- Parameters
-
_errid the error code from KIO::Error _text the rich text error message
Definition at line 507 of file slavebase.cpp.
◆ errorPage()
void SlaveBase::errorPage | ( | ) |
Tell that we will only get an error page here.
This means: the data you'll get isn't the data you requested, but an error page (usually HTML) that describes an error.
Definition at line 691 of file slavebase.cpp.
◆ exit()
void SlaveBase::exit | ( | ) |
Terminate the slave by calling the destructor and then ::exit()
Definition at line 747 of file slavebase.cpp.
◆ finished()
void SlaveBase::finished | ( | ) |
Call to signal successful completion of any command besides openConnection and closeConnection.
Do not call this after calling error().
Definition at line 551 of file slavebase.cpp.
◆ get()
|
virtual |
get, aka read.
- Parameters
-
url the full url for this request. Host, port and user of the URL can be assumed to be the same as in the last setHost() call.
The slave should first "emit" the MIME type by calling mimeType(), and then "emit" the data using the data() method.
The reason why we need get() to emit the MIME type is: when pasting a URL in krunner, or konqueror's location bar, we have to find out what is the MIME type of that URL. Rather than doing it with a call to mimetype(), then the app or part would have to do a second request to the same server, this is done like this: get() is called, and when it emits the MIME type, the job is put on hold and the right app or part is launched. When that app or part calls get(), the slave is magically reused, and the download can now happen. All with a single call to get() in the slave. This mechanism is also described in KIO::get().
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 941 of file slavebase.cpp.
◆ hasMetaData()
bool SlaveBase::hasMetaData | ( | const QString & | key | ) | const |
Queries for the existence of a certain config/meta-data entry send by the application to the slave.
Definition at line 413 of file slavebase.cpp.
◆ infoMessage()
void SlaveBase::infoMessage | ( | const QString & | msg | ) |
Call to signal a message, to be displayed if the application wants to, for instance in a status bar.
Usual examples are "connecting to host xyz", etc.
Definition at line 767 of file slavebase.cpp.
◆ listDir()
|
virtual |
Lists the contents of url
.
The slave should emit ERR_CANNOT_ENTER_DIRECTORY if it doesn't exist, if we don't have enough permissions. You should not list files if the path in url
is empty, but redirect to a non-empty path instead.
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 937 of file slavebase.cpp.
◆ listEntries()
void SlaveBase::listEntries | ( | const UDSEntryList & | _entry | ) |
Call this in listDir, each time you have a bunch of entries to report.
- Parameters
-
_entry The UDSEntry containing all of the object attributes.
Definition at line 847 of file slavebase.cpp.
◆ listEntry() [1/2]
void SlaveBase::listEntry | ( | const UDSEntry & | _entry, |
bool | ready | ||
) |
It collects entries and emits them via listEntries when enough of them are there or a certain time frame exceeded (to make sure the app gets some items in time but not too many items one by one as this will cause a drastic performance penalty).
- Parameters
-
_entry The UDSEntry containing all of the object attributes. ready set to true after emitting all items. _entry
is not used in this case
- Deprecated:
- since 5.0. the listEntry(entry, true) indicated that the entry listing was completed. However, each slave should already call finished() to also tell us that we're done listing. You should make sure that finished() is called when the entry listing is completed and simply remove the call to listEntry(entry, true).
Definition at line 805 of file slavebase.cpp.
◆ listEntry() [2/2]
void SlaveBase::listEntry | ( | const UDSEntry & | entry | ) |
It collects entries and emits them via listEntries when enough of them are there or a certain time frame exceeded (to make sure the app gets some items in time but not too many items one by one as this will cause a drastic performance penalty).
- Parameters
-
entry The UDSEntry containing all of the object attributes.
- Since
- 5.0
Definition at line 821 of file slavebase.cpp.
◆ lookupHost()
void SlaveBase::lookupHost | ( | const QString & | host | ) |
Internally used.
Definition at line 1609 of file slavebase.cpp.
◆ mapConfig()
Returns a map to query config/meta-data information from.
The application provides the slave with all configuration information relevant for the current protocol and host.
Use configValue() as shortcut.
- Since
- 5.64
Definition at line 424 of file slavebase.cpp.
◆ messageBox() [1/2]
int SlaveBase::messageBox | ( | const QString & | text, |
MessageBoxType | type, | ||
const QString & | title = QString() , |
||
const QString & | primaryActionText = QString() , |
||
const QString & | secondaryActionText = QString() , |
||
const QString & | dontAskAgainName = QString() |
||
) |
Call this to show a message box from the slave.
- Parameters
-
text Message string. May contain newlines. type type of message box: QuestionTwoActions, WarningTwoActions, WarningContinueCancel... title Message box title. primaryActionText the text for the first button. Ignored for type
Information & SSLMessageBox. The (deprecated since 5.100) default is i18n("&Yes").secondaryActionText the text for the second button. Ignored for type
WarningContinueCancel, WarningContinueCancelDetailed, Information & SSLMessageBox. The (deprecated since 5.100) default is i18n("&No").dontAskAgainName the name used to store result from 'Do not ask again' checkbox.
- Returns
- a button code, as defined in ButtonCode, or 0 on communication error.
Definition at line 1069 of file slavebase.cpp.
◆ messageBox() [2/2]
int SlaveBase::messageBox | ( | MessageBoxType | type, |
const QString & | text, | ||
const QString & | title = QString() , |
||
const QString & | primaryActionText = QString() , |
||
const QString & | secondaryActionText = QString() |
||
) |
Call this to show a message box from the slave.
- Parameters
-
type type of message box: QuestionTwoActions, WarningTwoActions, WarningContinueCancel... text Message string. May contain newlines. title Message box title. primaryActionText the text for the first button. Ignored for type
Information & SSLMessageBox. The (deprecated since 5.100) default is i18n("&Yes").secondaryActionText the text for the second button. Ignored for type
WarningContinueCancel, WarningContinueCancelDetailed, Information & SSLMessageBox. The (deprecated since 5.100) default is i18n("&No").
- Returns
- a button code, as defined in ButtonCode, or 0 on communication error.
Definition at line 1064 of file slavebase.cpp.
◆ metaData()
Queries for config/meta-data send by the application to the slave.
Definition at line 399 of file slavebase.cpp.
◆ mimeType()
void SlaveBase::mimeType | ( | const QString & | _type | ) |
Call this in mimetype() and in get(), when you know the MIME type.
See mimetype() about other ways to implement it.
Definition at line 710 of file slavebase.cpp.
◆ mimetype()
|
virtual |
Finds MIME type for one file or directory.
This method should either emit 'mimeType' or it should send a block of data big enough to be able to determine the MIME type.
If the slave doesn't reimplement it, a get will be issued, i.e. the whole file will be downloaded before determining the MIME type on it - this is obviously not a good thing in most cases.
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 965 of file slavebase.cpp.
◆ mkdir()
|
virtual |
Create a directory.
- Parameters
-
url path to the directory to create permissions the permissions to set after creating the directory (-1 if no permissions to be set) The slave emits ERR_CANNOT_MKDIR if failure.
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 989 of file slavebase.cpp.
◆ multiGet()
|
virtual |
Used for multiple get.
Currently only used for HTTP pipelining support.
- Parameters
-
data packed data; Contains number of URLs to fetch, and for each URL the URL itself and its associated MetaData.
Definition at line 1009 of file slavebase.cpp.
◆ needSubUrlData()
void SlaveBase::needSubUrlData | ( | ) |
Call to signal that data from the sub-URL is needed.
Definition at line 606 of file slavebase.cpp.
◆ open()
|
virtual |
open.
- Parameters
-
url the full url for this request. Host, port and user of the URL can be assumed to be the same as in the last setHost() call. mode see QIODevice::OpenMode
Definition at line 945 of file slavebase.cpp.
◆ openConnection()
|
virtual |
Opens the connection (forced).
When this function gets called the slave is operating in connection-oriented mode. When a connection gets lost while the slave operates in connection oriented mode, the slave should report ERR_CONNECTION_BROKEN instead of reconnecting. The user is expected to disconnect the slave in the error handler.
Definition at line 918 of file slavebase.cpp.
◆ opened()
void SlaveBase::opened | ( | ) |
◆ openPasswordDialog()
bool SlaveBase::openPasswordDialog | ( | KIO::AuthInfo & | info, |
const QString & | errorMsg = QString() |
||
) |
- Deprecated:
- since KF 5.24, use openPasswordDialogV2.
The return value works differently: instead of if (!openPasswordDialog()) { error(USER_CANCELED); } store and pass the return value to error(), when NOT zero, as shown documentation for openPasswordDialogV2().
Definition at line 1026 of file slavebase.cpp.
◆ openPasswordDialogV2()
int SlaveBase::openPasswordDialogV2 | ( | KIO::AuthInfo & | info, |
const QString & | errorMsg = QString() |
||
) |
Prompt the user for Authorization info (login & password).
Use this function to request authorization information from the end user. You can also pass an error message which explains why a previous authorization attempt failed. Here is a very simple example:
You can also preset some values like the username, caption or comment as follows:
- Note
- You should consider using checkCachedAuthentication() to see if the password is available in kpasswdserver before calling this function.
-
A call to this function can fail and return
false
, if the password server could not be started for whatever reason. - This function does not store the password information automatically (and has not since kdelibs 4.7). If you want to store the password information in a persistent storage like KWallet, then you MUST call cacheAuthentication.
- See also
- checkCachedAuthentication
- Parameters
-
info See AuthInfo. errorMsg Error message to show
- Returns
- a KIO error code: NoError (0), KIO::USER_CANCELED, or other error codes.
Definition at line 1033 of file slavebase.cpp.
◆ processedPercent()
void SlaveBase::processedPercent | ( | float | percent | ) |
Only use this if you can't know in advance the size of the copied data.
For example, if you're doing variable bitrate compression of the source.
STUB ! Currently unimplemented. Here now for binary compatibility.
Call this during get and copy, once in a while, to give some info about the current state. Don't emit it in listDir, listEntries speaks for itself.
Definition at line 674 of file slavebase.cpp.
◆ processedSize()
void SlaveBase::processedSize | ( | KIO::filesize_t | _bytes | ) |
Call this during get and copy, once in a while, to give some info about the current state.
Don't emit it in listDir, listEntries speaks for itself.
Definition at line 633 of file slavebase.cpp.
◆ proxyConnectTimeout()
int SlaveBase::proxyConnectTimeout | ( | ) |
- Returns
- timeout value for connecting to proxy in secs.
Definition at line 1526 of file slavebase.cpp.
◆ put()
put, i.e. write data into a file.
- Parameters
-
url where to write the file permissions may be -1. In this case no special permission mode is set. flags We support Overwrite here. Hopefully, we're going to support Resume in the future, too. If the file indeed already exists, the slave should NOT apply the permissions change to it. The support for resuming using .part files is done by calling canResume().
IMPORTANT: Use the "modified" metadata in order to set the modification time of the file.
- See also
- canResume()
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 929 of file slavebase.cpp.
◆ read()
|
virtual |
read.
- Parameters
-
size the requested amount of data to read
- See also
- KIO::FileJob::read()
Definition at line 949 of file slavebase.cpp.
◆ readData()
int SlaveBase::readData | ( | QByteArray & | buffer | ) |
Read data sent by the job, after a dataReq.
- Parameters
-
buffer buffer where data is stored
- Returns
- 0 on end of data, > 0 bytes read < 0 error
Definition at line 1154 of file slavebase.cpp.
◆ readTimeout()
int SlaveBase::readTimeout | ( | ) |
- Returns
- timeout value for read from subsequent data from remote host in secs.
Definition at line 1548 of file slavebase.cpp.
◆ redirection()
void SlaveBase::redirection | ( | const QUrl & | _url | ) |
Call this to signal a redirection.
The job will take care of going to that url.
Definition at line 685 of file slavebase.cpp.
◆ remoteEncoding()
KRemoteEncoding * SlaveBase::remoteEncoding | ( | ) |
Returns an object that can translate remote filenames into proper Unicode forms.
This encoding can be set by the user.
Definition at line 475 of file slavebase.cpp.
◆ rename()
Rename oldname
into newname
.
If the slave returns an error ERR_UNSUPPORTED_ACTION, the job will ask for copy + del instead.
Important: the slave must implement the logic "if the destination already exists, error ERR_DIR_ALREADY_EXIST or ERR_FILE_ALREADY_EXIST". For performance reasons no stat is done in the destination before hand, the slave must do it.
By default, rename() is only called when renaming (moving) from yourproto://host/path to yourproto://host/otherpath.
If you set renameFromFile=true then rename() will also be called when moving a file from file:///path to yourproto://host/otherpath. Otherwise such a move would have to be done the slow way (copy+delete). See KProtocolManager::canRenameFromFile() for more details.
If you set renameToFile=true then rename() will also be called when moving a file from yourproto: to file:. See KProtocolManager::canRenameToFile() for more details.
- Parameters
-
src where to move the file from dest where to move the file to flags We support Overwrite here
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 969 of file slavebase.cpp.
◆ reparseConfiguration()
|
virtual |
Called by the scheduler to tell the slave that the configuration changed (i.e. proxy settings).
Definition at line 1019 of file slavebase.cpp.
◆ requestNetwork()
Used by the slave to check if it can connect to a given host.
This should be called where the slave is ready to do a ::connect() on a socket. For each call to requestNetwork must exist a matching call to dropNetwork, or the system will stay online until KNetMgr gets closed (or the SlaveBase gets destructed)!
If KNetMgr is not running, then this is a no-op and returns true
- Parameters
-
host tells the netmgr the host the slave wants to connect to. As this could also be a proxy, we can't just take the host currently connected to (but that's the default value)
- Returns
- true in theory, the host is reachable false the system is offline and the host is in a remote network.
- Deprecated:
- Since 5.0, for a very very long time, not implemented anymore Probably dates back to model dialup times.
Definition at line 774 of file slavebase.cpp.
◆ requestPrivilegeOperation() [1/2]
PrivilegeOperationStatus SlaveBase::requestPrivilegeOperation | ( | ) |
- Deprecated:
- since 5.66, use requestPrivilegeOperation(QString)
Definition at line 1676 of file slavebase.cpp.
◆ requestPrivilegeOperation() [2/2]
PrivilegeOperationStatus SlaveBase::requestPrivilegeOperation | ( | const QString & | operationDetails | ) |
Checks with job if privilege operation is allowed.
- Returns
- privilege operation status.
- See also
- PrivilegeOperationStatus
- Since
- 5.66
Definition at line 1642 of file slavebase.cpp.
◆ responseTimeout()
int SlaveBase::responseTimeout | ( | ) |
- Returns
- timeout value for read from first data from remote host in seconds.
Definition at line 1537 of file slavebase.cpp.
◆ seek()
|
virtual |
seek.
- Parameters
-
offset the requested amount of data to read
- See also
- KIO::FileJob::read()
Definition at line 957 of file slavebase.cpp.
◆ sendAndKeepMetaData()
void SlaveBase::sendAndKeepMetaData | ( | ) |
Internal function to transmit meta data to the application.
Like sendMetaData() but m_outgoingMetaData will not be cleared. This method is mainly useful in code that runs before the slave is connected to its final job.
Definition at line 466 of file slavebase.cpp.
◆ sendMetaData()
void SlaveBase::sendMetaData | ( | ) |
Internal function to transmit meta data to the application.
m_outgoingMetaData will be cleared; this means that if the slave is for example put on hold and picked up by a different KIO::Job later the new job will not see the metadata sent before. See kio/DESIGN.krun for an overview of the state progression of a job/slave.
- Warning
- calling this method may seriously interfere with the operation of KIO which relies on the presence of some metadata at some points in time. You should not use it if you are not familiar with KIO and not before the slave is connected to the last job before returning to idle state.
Definition at line 460 of file slavebase.cpp.
◆ setHost()
|
virtual |
Set the host.
Called directly by createSlave, this is why there is no equivalent in SlaveInterface, unlike the other methods.
This method is called whenever a change in host, port or user occurs.
Definition at line 870 of file slavebase.cpp.
◆ setKillFlag()
void SlaveBase::setKillFlag | ( | ) |
Internally used.
Definition at line 1564 of file slavebase.cpp.
◆ setLinkDest()
Change the destination of a symlink.
- Parameters
-
url the url of the symlink to modify target the new destination (target) of the symlink
Definition at line 985 of file slavebase.cpp.
◆ setMetaData()
Sets meta-data to be send to the application before the first data() or finished() signal.
Definition at line 394 of file slavebase.cpp.
◆ setModificationTime()
Sets the modification time for url
.
For instance this is what CopyJob uses to set mtime on dirs at the end of a copy. It could also be used to set the mtime on any file, in theory. The usual implementation on unix is to call utime(path, &myutimbuf). The slave emits ERR_DOES_NOT_EXIST or ERR_CANNOT_SETTIME
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 997 of file slavebase.cpp.
◆ setSubUrl()
|
virtual |
Prepare slave for streaming operation.
Definition at line 1005 of file slavebase.cpp.
◆ setTimeoutSpecialCommand()
void SlaveBase::setTimeoutSpecialCommand | ( | int | timeout, |
const QByteArray & | data = QByteArray() |
||
) |
This function sets a timeout of timeout
seconds and calls special(data) when the timeout occurs as if it was called by the application.
A timeout can only occur when the slave is waiting for a command from the application.
Specifying a negative timeout cancels a pending timeout.
Only one timeout at a time is supported, setting a timeout cancels any pending timeout.
Definition at line 1161 of file slavebase.cpp.
◆ slave_status()
|
virtual |
Called to get the status of the slave.
Slave should respond by calling slaveStatus(...)
Definition at line 1014 of file slavebase.cpp.
◆ slaveStatus()
void SlaveBase::slaveStatus | ( | const QString & | host, |
bool | connected | ||
) |
Used to report the status of the slave.
- Parameters
-
host the slave is currently connected to. (Should be empty if not connected) connected Whether an actual network connection exists.
Definition at line 611 of file slavebase.cpp.
◆ special()
|
virtual |
Used for any command that is specific to this slave (protocol).
Examples are : HTTP POST, mount and unmount (kio_file)
- Parameters
-
data packed data; the meaning is completely dependent on the slave, but usually starts with an int for the command number. Document your slave's commands, at least in its header file.
Definition at line 933 of file slavebase.cpp.
◆ speed()
void SlaveBase::speed | ( | unsigned long | _bytes_per_second | ) |
Call this in get and copy, to give the current transfer speed, but only if it can't be calculated out of the size you passed to processedSize (in most cases you don't want to call it)
Definition at line 679 of file slavebase.cpp.
◆ stat()
|
virtual |
Finds all details for one file or directory.
The information returned is the same as what listDir returns, but only for one file or directory. Call statEntry() after creating the appropriate UDSEntry for this url.
You can use the "details" metadata to optimize this method to only do as much work as needed by the application. By default details is 2 (all details wanted, including modification time, size, etc.), details==1 is used when deleting: we don't need all the information if it takes too much time, no need to follow symlinks etc. details==0 is used for very simple probing: we'll only get the answer "it's a file or a directory (or a symlink), or it doesn't exist".
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 925 of file slavebase.cpp.
◆ statEntry()
void SlaveBase::statEntry | ( | const UDSEntry & | _entry | ) |
Call this from stat() to express details about an object, the UDSEntry customarily contains the atoms describing file name, size, MIME type, etc.
- Parameters
-
_entry The UDSEntry containing all of the object attributes.
Definition at line 798 of file slavebase.cpp.
◆ symlink()
Creates a symbolic link named dest
, pointing to target
, which may be a relative or an absolute path.
- Parameters
-
target The string that will become the "target" of the link (can be relative) dest The symlink to create. flags We support Overwrite here
Reimplemented in KIO::ForwardingSlaveBase.
Definition at line 973 of file slavebase.cpp.
◆ totalSize()
void SlaveBase::totalSize | ( | KIO::filesize_t | _bytes | ) |
Call this in get and copy, to give the total size of the file.
Definition at line 624 of file slavebase.cpp.
◆ truncated()
void SlaveBase::truncated | ( | KIO::filesize_t | _length | ) |
- Since
- 5.66
Definition at line 668 of file slavebase.cpp.
◆ waitForAnswer()
int SlaveBase::waitForAnswer | ( | int | expected1, |
int | expected2, | ||
QByteArray & | data, | ||
int * | pCmd = nullptr |
||
) |
Wait for an answer to our request, until we get expected1
or expected2
.
- Returns
- the result from readData, as well as the cmd in *pCmd if set, and the data in
data
Definition at line 1127 of file slavebase.cpp.
◆ waitForHostInfo()
int SlaveBase::waitForHostInfo | ( | QHostInfo & | info | ) |
Internally used.
Definition at line 1615 of file slavebase.cpp.
◆ warning()
void SlaveBase::warning | ( | const QString & | msg | ) |
Call to signal a warning, to be displayed in a dialog box.
Definition at line 761 of file slavebase.cpp.
◆ wasKilled()
bool SlaveBase::wasKilled | ( | ) | const |
If your ioslave was killed by a signal, wasKilled() returns true.
Check it regularly in lengthy functions (e.g. in get();) and return as fast as possible from this function if wasKilled() returns true. This will ensure that your slave destructor will be called correctly.
Definition at line 1559 of file slavebase.cpp.
◆ write()
|
virtual |
write.
- Parameters
-
data the data to write
- See also
- KIO::FileJob::write()
Definition at line 953 of file slavebase.cpp.
Member Data Documentation
◆ mProtocol
|
protected |
Name of the protocol supported by this slave.
Definition at line 1061 of file slavebase.h.
The documentation for this class was generated from the following files:
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