Because such XEPs do not seek to define standard protocols, in general they are less controversial and tend to proceed from Proposed to Active without controversy on a vote of the XMPP Council. However, some of these XEPs may be remanded from the Council to the XEP author and/or XMPP Extensions Editor for revision in order to be suitable for advancement from Proposed to Active (e.g., documentation of protocols in use must be accurate and describe any existing security concerns). As with Standards Track XEPs, the XEP author may retract such a XEP when it is Experimental, and the Council may reject such a XEP when it is Proposed.
-Once approved, Historical, Informational, and Procedural XEPs will have a status of Active. Such a XEP may be replaced by a new XEP on the same or a similar topic, thus rendering the earlier XEP out of date; in such cases, the earlier XEP shall be assigned a status of Deprecated (and eventually Obsolete) with a note specifying the superseding XEP.
+Because such XEPs do not seek to define standard protocols, in general they are less controversial and tend to proceed from Proposed to Active without controversy on a vote of the XMPP Council. However, some of these XEPs may be remanded from the Council to the XEP author and/or XMPP Extensions Editor for revision in order to be suitable for advancement from Proposed to Active (e.g., documentation of protocols in use must be accurate and describe any existing security concerns). As with Standards Track XEPs, the XEP author may retract such a XEP when it is Experimental, and the Council may reject such a XEP when it is Proposed.
+Once approved, Historical, Informational, and Procedural XEPs will have a status of Active. Such a XEP may be replaced by a new XEP on the same or a similar topic, thus rendering the earlier XEP out of date; in such cases, the earlier XEP shall be assigned a status of Deprecated (and eventually Obsolete) with a note specifying the superseding XEP.
The XMPP Council may, at its discretion, decide to convert an Historical XEP into a Standards Track XEP if the protocol defined in the XEP has been in long use, is deemed stable and uncontroversial, and is unlikely to be superseded by a newer protocol. The Historical XEP shall be treated in the same way as a Standards Track XEP that has a status of Experimental, beginning with the Proposal Process. If after the Last Call and voting by the XMPP Council the XEP is approved for advancement on the standards track, its type shall be changed to Standards Track and its status shall be changed to Draft.
@@ -370,7 +370,7 @@ Experimental ----> Proposed ----> ActiveA Standards Track XEP is in the Final state after it has been in the Draft state for at least six (6) months, has been implemented in at least two separate codebases, and has been voted forward on the standards track by the XMPP Council.
-Note: Once an XMPP Extension Protocol has been advanced to a status of Final, every effort shall be made to limit the scope of modifications; in particular, backwards-incompatible changes shall not be made. However, limited modifications may be made as long as they are optional, backwards-compatible extensions rather than modifications to the core protocol itself. Therefore, a Final protocol is safe for deployment in mission-critical applications.
+Note: Once an XMPP Extension Protocol has been advanced to a status of Final, every effort shall be made to limit the scope of modifications; in particular, backwards-incompatible changes shall not be made. However, limited modifications may be made as long as they are optional, backwards-compatible extensions rather than modifications to the core protocol itself. Therefore, a Final protocol is safe for deployment in mission-critical applications.
A XEP of any type other than Standards Track is advanced to a status of Active after it has been voted forward from Experimental by the XMPP Council.
@@ -453,10 +453,10 @@ THE SOFTWARE.This new conferencing protocol will be designed to solve these problems.
-Because of the prevalence of the existing "groupchat" specification for multi-user chats, a long conversion process is anticipated. A server implementation which supports both protocols will simply not allow "groupchat"-only clients to participate in rooms with required features.
+Because of the prevalence of the existing "groupchat" specification for multi-user chats, a long conversion process is anticipated. A server implementation which supports both protocols will simply not allow "groupchat"-only clients to participate in rooms with required features.
As listed above, there is a fairly large number of features that could be developed on top of a well-designed framework. The Conferencing SIG will first be established to develop a framework, with features mainly being compared against the framework for feasibility of implementation. After a proposal has been formalized as a specification, the SIG will become a group for discussing and proposing new features, and for formally specifying those features.
diff --git a/xep-0009.xml b/xep-0009.xml index ce12e551..f956e8ed 100644 --- a/xep-0009.xml +++ b/xep-0009.xml @@ -5,7 +5,7 @@ ]>If the requesting entity does not have sufficient permissions to perform remote procedure calls, the responding entity MUST return a &forbidden; error:
If an entity supports the Jabber-RPC protocol, it SHOULD advertise that fact in response to &xep0030; information ("diso#info") requests by returning an identity of "automation/rpc" and a feature of "jabber:iq:rpc":
In order to request last activity information regarding another entity, the requesting entity sends an &IQ; stanza of type "get" to the target entity, containing a &QUERY; element qualified by the 'jabber:iq:last' namespace:
The target entity MUST return either an IQ-result or an IQ-error. When returning an IQ-result, the target entity sends an &IQ; stanza of type='result' containing a &QUERY; element with a REQUIRED 'seconds' attribute and OPTIONAL XML character data.
The primary usage of the 'jabber:iq:last' namespace is to find out how long ago a user logged out (and, additionally, what their status message was at that time). This primary usage assumes that the IQ-get is sent to a bare JID &LOCALBARE;. When used in this way, the &QUERY; element contained in the IQ-result has a 'seconds' attribute, which is the number of seconds that have passed since the user last logged out. In addition, the element MAY contain XML character data that specifies the status message of the last unavailable presence received from the user. An example is shown below:
As specified in &xmppcore; and &xmppim;, an IQ stanza of type "get" sent to a bare JID &LOCALBARE; is handled by the user's server on the user's behalf, not delivered to one or more connected or available resources.
If the requesting entity is not authorized to view the user's presence information (normally via a presence subscription as defined in XMPP-IM), the user's server MUST NOT return last activity information but instead MUST return a &forbidden; error in response to the last activity request.
In this case, the user's server shall either deliver the IQ to an available resource or respond on behalf of the user.
In particular, as with the offline query use case above, if the requesting entity is not authorized to view the user's presence information (normally via a presence subscription as defined in XMPP IM), the user's server MUST NOT deliver the IQ-get to an available resource but instead MUST return a &forbidden; error in response to the last activity request.
If the user's server delivers the IQ-get to one of the user's available resources, the user's client MAY respond with the idle time of the user (i.e., the last time that a human user interacted with the client application).
In the foregoing example, the user has been idle for about two minutes.
Support for this functionality is OPTIONAL. A client that does not support the protocol, or that does not wish to divulge this information, MUST return a &unavailable; error.
When the last activity query is sent to a server or component (i.e., to a JID of the form &DOMAINBARE;), the information contained in the IQ reply reflects the uptime of the JID sending the reply. The seconds attribute specifies how long the host has been running since it was last (re-)started. The &QUERY; element SHOULD NOT contain XML character data.
In order to discover whether one's server supports this protocol, one uses &xep0030;.
In order to determine the number of messages in the offline message queue, the user sends a disco#info request without a 'to' address (i.e., implicitly to the user himself) and with the disco node specified as 'http://jabber.org/protocol/offline':
In order to retrieve headers for all of the messages in the queue, the user sends a disco#items request without a 'to' address (i.e., implicitly to the user himself) and with the disco node specified as 'http://jabber.org/protocol/offline'.
The server now MUST return headers for all of the user's offline messages. So that the user may determine whether to view a full message, the header information provided MUST include the full Jabber ID of the sender (encoded in the 'name' attribute) and a unique identifier for the message within the user's "inbox" (encoded in the 'node' attribute), so that the user may appropriately manage (view or remove) the message.
Given the lack of activity in the SIGs so far (and the lack of time available to those who would manage them), I am skeptical that "cracking the whip" will produce results, and I believe the onus of proof is on those who would argue that the existing SIGs can be successful. Similarly, taking a "wait and see" attitude will simply let a bad situation continue unchecked, and in my opinion will at some point require us to choose between option 1 and option 3. Rather than postpone the day of reckoning, I argue that we need to address the problem head-on and take action to streamline the SIGs and find a better way of working.
But what is that "better way"? In order to figure that out, we need to understand why things are not working now. I don't think it's that the current SIG members are lazy, stupid, or incompetent -- after all, these are the same people who have in many instances created good XMPP-based software. Nor do I think it's that members of the XMPP community are incapable of creating specifications, because individually and in small, ad-hoc groups they have created quite a few.
diff --git a/xep-0021.xml b/xep-0021.xml index 0e689801..8e8d6f7e 100644 --- a/xep-0021.xml +++ b/xep-0021.xml @@ -48,14 +48,14 @@In Jabber, the role of the ENS has traditionally been filled by overloading the <presence/> packet type. However, this method was never designed to be used as a general publish-and-subscribe mechanism, and so has the following problems:
The protocol consists of two parts - the subscriber-to-ENS protocol, and the publisher-to-ENS protocol. Since there is no direct interaction between a publisher and a subscriber, it makes sense to seperate the two parts of the protocol.
The protocol operates in the 'http://xml.cataclysm.cx/jabber/ens/' namespace.
@@ -187,7 +187,7 @@A notification may also contain a (application-specific) "payload" XML fragment:
- +A notification may also contain a (application-specific) "payload" XML fragment:
- +The subscriber may include an <auth-info/> XML fragment containing some (application-specific) information that the publisher can use to authorise it:
- +To signal to the ENS that a subscriber should be allowed to subscribe, the publisher should return a packet of the following form:
- +This problem may be outside of the scope of this specification.
The specification details the use of the Jabber protocol elements and -introduces a new namespace, jabber:iq:pubsub. +introduces a new namespace, jabber:iq:pubsub. It also includes notes on actual implementation of such a mechanism in Jabber.
@@ -78,7 +78,7 @@ It's clear that as Jabber is deployed over a wider spectrum of platforms and circumstances, more and more information will be exchanged. Whether that information is specific to Jabber (JSM) users, or components, we need an mechanism to be able to manage the exchange of this information in an -efficient way. +efficient way.@@ -301,7 +301,7 @@ You can also send an unsubscribe without specifying any namespaces:
EbXML
EbXML
-EbXML information is always transmitted in this envelope. No transformation of native ebXML tags into native Jabber tags is performed (e.g., ebXML reception receipt into Jabber reception receipt). The business logic, on top of Jabber transport logic, has to parse incoming IQ chunks and forward received ebXML information to the ebXML Messaging Service. The business logic has as well to pack the ebXML messages into IQ chunks and invoke the message delivery. +EbXML information is always transmitted in this envelope. No transformation of native ebXML tags into native Jabber tags is performed (e.g., ebXML reception receipt into Jabber reception receipt). The business logic, on top of Jabber transport logic, has to parse incoming IQ chunks and forward received ebXML information to the ebXML Messaging Service. The business logic has as well to pack the ebXML messages into IQ chunks and invoke the message delivery.
-Although a complex business transaction between two or more Trading Partners might require a payload that contains an array of business documents, binary images, or other related Business Information'
It has to be noted: The karma restriction of XMPP, implied on clients, makes transmission of large amounts of payload (at the moment) to services or other clients from client side nearly impossible. However, components' karma is not restrained. +
It has to be noted: The karma restriction of XMPP, implied on clients, makes transmission of large amounts of payload (at the moment) to services or other clients from client side nearly impossible. However, components' karma is not restrained.
SAP IDocs SHALL be transmitted in a query tag of an IQ chunk. The IQ chunk's type attribute SHALL be 'set. The query's namespace attribute SHALL be set to 'http://jabber.org/protocol/sap_idoc'. The query tag SHALL contain the iDoc, XML aware. +
SAP IDocs SHALL be transmitted in a query tag of an IQ chunk. The IQ chunk's type attribute SHALL be 'set. The query's namespace attribute SHALL be set to 'http://jabber.org/protocol/sap_idoc'. The query tag SHALL contain the iDoc, XML aware.
This information is implementation-dependent, so to provide flexibility for it, the jabber:x:data namespace defined in &xep0004; must be used. The client can set these parameters by setting this item with this form with type='submit'.
A very simple namespace contaning display hints for the content in a message. Can be used for +
A very simple namespace contaning display hints for the content in a message. Can be used for person-person collaboration, or by a service managing notes.
Normal messages are sent, with a sharednote namespace extending them hinting to any supporting client on -how to display the message as a note instead. Any changes to the note within that client should then be sent -back to the sender, either automatically or when the user saves the note (depending on the update element, by +
Normal messages are sent, with a sharednote namespace extending them hinting to any supporting client on +how to display the message as a note instead. Any changes to the note within that client should then be sent +back to the sender, either automatically or when the user saves the note (depending on the update element, by default on a save action by the user).
Any element not specified in the note should use the last known setting or client defaults, so that when a +
Any element not specified in the note should use the last known setting or client defaults, so that when a change is sent, only the changed elements are returned.
Each thread is a different shared note. Auto updates should use an internal client timer and batch large changes into chunks, when the user is typing every 5-10 seconds or so. When the user has made changes that -haven't been sent and an update comes in on the same thread the client should prompt the user with the +haven't been sent and an update comes in on the same thread the client should prompt the user with the changes offering to replace or save their changes.
diff --git a/xep-0063.xml b/xep-0063.xml index d536ada4..22d9528b 100644 --- a/xep-0063.xml +++ b/xep-0063.xml @@ -30,7 +30,7 @@A sample protocol flow is shown below.
-Usage of jabber/xmpp for stock data transmission would be a nice-to-have. This xep defines transmission of stock ticker values via XMPP based on publish/subscribe. A component, client or alike may publish stock data in this specified way, after creating a node. However, first of all a node on the pub/sub server must be created, this xep recommends creation of the node in the domain 'stocks/', with specific stock value published in the ticker name domain space, i.e. 'stocks/CATG.DE' or 'stocks/602345'. This xep uses the domain 'stocks/' for example data. +Usage of jabber/xmpp for stock data transmission would be a nice-to-have. This xep defines transmission of stock ticker values via XMPP based on publish/subscribe. A component, client or alike may publish stock data in this specified way, after creating a node. However, first of all a node on the pub/sub server must be created, this xep recommends creation of the node in the domain 'stocks/', with specific stock value published in the ticker name domain space, i.e. 'stocks/CATG.DE' or 'stocks/602345'. This xep uses the domain 'stocks/' for example data.
So, what this document comes down to: it defines the data architecture for stock data and it specifies, that a 'stocks/' node is recommended to exist, which again holds all symbols as subnodes, which again hold either '/realtime', '/bar' or '/news' as subnodes. The 'bar' subnode contains a 'time descriptor' subnode. The sort of the symbols is defined through the service provider, who can i.e. support Y!ahoo finance symbols, (german) WKNs or official stock symbols.
@@ -55,7 +55,7 @@ So, what this document comes down to: it defines the data architecture for stock
-Realtime (or close-to-realtime) full stock value data is distributed to a ticker symbol pub/sub location, in the stocks domain. The share data SHALL contain name, time of last trade, most recent stock value, last trade volume, bid, ask, bid size, ask size of the share. If a value is not available, the value MUST be set to '-1'. Each of the values is transmitted in a corresponding xml element, as seen below. The data is published to a pub/sub position. Realtime share value SHALL be published to a position 'realtime' in the ticker symbol domain.
+Realtime (or close-to-realtime) full stock value data is distributed to a ticker symbol pub/sub location, in the stocks domain. The share data SHALL contain name, time of last trade, most recent stock value, last trade volume, bid, ask, bid size, ask size of the share. If a value is not available, the value MUST be set to '-1'. Each of the values is transmitted in a corresponding xml element, as seen below. The data is published to a pub/sub position. Realtime share value SHALL be published to a position 'realtime' in the ticker symbol domain.
Time framed, suitable for barcharts/candle sticks/line diagram, stock value data is distributed to a pub/sub location, the ticker symbol domain in the stocks domain. The share data SHALL contain name, validity time of this data set, open, hi, low, close for this time frame, traded volume in this time span of a share. If a value is not available, the value MUST be set to '-1'. Each of the values is transmitted in a corresponding xml element, as seen below. The data is published to a pub/sub position. Time framed, barcharted share data SHALL be published to a position 'bar' in the ticker symbol domain, the subdomain of this position SHALL be the time span information, time span as stated below. It is up to a component, how to to react on subscriptions in various time spans. Implementations are advised to generate data as according to subscribers demands (subscriptions). Values lower than 0:0:0:0:5:0 are not suitable for most implementations.
+ Each of the values is transmitted in a corresponding xml element, as seen below. The data is published to a pub/sub position. Time framed, barcharted share data SHALL be published to a position 'bar' in the ticker symbol domain, the subdomain of this position SHALL be the time span information, time span as stated below. It is up to a component, how to to react on subscriptions in various time spans. Implementations are advised to generate data as according to subscribers demands (subscriptions). Values lower than 0:0:0:0:5:0 are not suitable for most implementations.
-The time span SHALL be represented as a string, composed of the amount of years, months, days, hours, minutes, seconds covered by this barchart data set. Time span values SHALL be separated from each other through ':'. A leading zero MAY be attached to digits lower than ten.
+The time span SHALL be represented as a string, composed of the amount of years, months, days, hours, minutes, seconds covered by this barchart data set. Time span values SHALL be separated from each other through ':'. A leading zero MAY be attached to digits lower than ten.
-Stock news are distributed to the pub/sub gateway, to the 'news' location in the ticker symbol subdomain. The stock news are packed in a 'stocknews' chunk. The stocknews chunk contains time, subject, body and source of these news. +Stock news are distributed to the pub/sub gateway, to the 'news' location in the ticker symbol subdomain. The stock news are packed in a 'stocknews' chunk. The stocknews chunk contains time, subject, body and source of these news.
These are forms that do not have a hidden field of name FORM_TYPE. Existing processing rules still apply.
If the JID provided was a full JID, the confirmation request SHOULD be sent in an &IQ; stanza of type "get" whose 'to' attribute is set to the full JID, but MAY be sent in a &MESSAGE; stanza.
If the JID provided was a bare JID, the confirmation request MUST be sent in a &MESSAGE; stanza whose 'to' attribute is set to the bare JID; this enables delivery to the "most available" resource for the user (however "most available" is determined by the XMPP Server). The &MESSAGE; stanza SHOULD include a &THREAD; element for tracking purposes and MAY include a &BODY; element that provides human-readable information or instructions. If it however provides a &BODY;, the server SHOULD be able to handle a plaintext reply from the client, in the case where it does not support this XEP.
If the confirmation request was provided via an &IQ; stanza, the XMPP Client MUST respond to the request by sending an &IQ; stanza back to the XMPP Server. If the user wishes to confirm the request, the &IQ; response stanza MUST be of type "result" and MAY contain the original <confirm/> child element (although this is not necessary since the XMPP 'id' attribute can be used for tracking purposes):
If the user wishes to deny the request, the &IQ; response stanza MUST be of type "error", MAY contain the original <confirm/> child element (although this is not necessary since the XMPP 'id' attribute can be used for tracking purposes), and MUST specify an error, which SHOULD be ¬authorized;:
If the user wishes to deny the request, the &MESSAGE; response stanza MUST be of type "error", MUST mirror the <thread/> ID (if provided by the XMPP Server), MUST contain the original <confirm/> child element, and MUST specify an error, which SHOULD be ¬authorized;:
For added security, the XMPP Server and XMPP Client may wish to communicate using end-to-end encryption. Methods for doing so are outside the scope of this proposal.
@@ -365,7 +365,7 @@ Content-Length: 3032 targetNamespace='http://jabber.org/protocol/http-auth' xmlns='http://jabber.org/protocol/http-auth' elementFormDefault='qualified'> - +The Hypertext Module is defined as including the <a/> element only:
+The Hypertext Module is defined as including the <a/> element only:
| Element | Attributes |
|---|---|
| <a/> | class, id, title; style; accesskey, charset, href, hreflang, rel, rev, tabindex, type |