Wechat protocol pdf - teustinbiedia

WeChat Open Platform

In 2013, Wechat announced a partnership with Malaysian tea company. Retrieved December 12, 2017. I put in a link from cn.

I personally strongly dislike it because you have to set a phone as your primary device. I put in a link from cn. It happens all the time. The feature allows users to send money to contacts and groups as gifts.

WeChat API - In the 2018 annual shareholders meeting, identified WeChat as one of the few potential competitors to , and. Because there are many companies that are not familiar.

Official logo Extensible Messaging and Presence Protocol XMPP is a for based on Extensible Markup Language. It enables the near-real-time exchange of structured yet data between any two or more network entities. Originally named Jabber, the protocol was developed by the Jabber open-source community in 1999 for IM , , and maintenance. Designed to be , the protocol has been used also for publish-subscribe systems, signalling for , video, , , the IoT applications such as the , and. Unlike most instant messaging protocols, XMPP is defined in an and uses an approach of development and application, by which anyone may implement an XMPP service and interoperate with other organizations' implementations. Because XMPP is an open protocol, implementations can be developed using any software license and many server, client, and library implementations are distributed as. Numerous and implementations also exist. The IETF formed an XMPP in 2002 to formalize the core protocols as an IETF instant messaging and presence technology. The XMPP Working group produced four specifications , , , , which were approved as Proposed Standards in 2004. In 2011, and were superseded by and respectively, with specifying the XMPP address format. In 2015, was superseded by. In addition to these core protocols standardized at the IETF, the formerly the Jabber Software Foundation is active in developing open XMPP extensions. XMPP-based software is deployed widely across the Internet, and by 2003, was used by over ten million people worldwide, according to the. The early Jabber community focused on open-source software, mainly the jabberd server, but its major outcome proved to be the development of the XMPP protocol. The early Jabber , as developed in 1999 and 2000, formed the basis for XMPP as published in and the primary changes during formalization by the IETF's XMPP Working Group were the addition of for channel encryption and for authentication. Note that and have been superseded by and , published in 2011. The first IM service based on XMPP was Jabber. From 1999 until February 2006, the service used as its server software, at which time it migrated to both of which are application servers. In January 2010, the service migrated to the M-Link server software produced by Isode Ltd. In August 2005, introduced , a combination VoIP and IM system that uses XMPP for instant messaging and as a base for a voice and file transfer signaling protocol called. The initial launch did not include communications; Google enabled that feature on January 17, 2006. Google has since added video functionality to Google Talk, also using the Jingle protocol for signaling. In May 2013, Google announced XMPP compatibility would be dropped from Google Talk for server-to-server federation, although it would retain client-to-server support. In January 2008, AOL introduced experimental XMPP support for its AIM service, allowing AIM users to communicate using XMPP. However, in March 2008, this service was discontinued. In September 2008, acquired Jabber, Inc. In February 2010, the social-networking site opened up its to third-party applications via XMPP. Some functionality was unavailable through XMPP, and support was dropped in April 2014. Similarly, in December 2011, Microsoft released an XMPP interface to its. Skype, its de facto successor, also provides limited XMPP support. However, these are not native XMPP implementations. A simple XMPP network with the servers jabber. Green clients are online, yellow clients are writing each other and small green subclients are the resources of one user. The brown network is not connected to the internet. The XMPP network uses a architecture; clients do not talk directly to one another. The model is decentralized - anyone can run a server. By design, there is no central authoritative server as there is with services such as or. Some confusion often arises on this point as there is a public XMPP server being run at jabber. However, anyone may run their own XMPP server on their own domain. Every user on the network has a unique XMPP address, called JID for historical reasons, XMPP addresses are often called Jabber IDs. The JID is structured like an with a username and a or for the server where that user resides, separated by an , such as username example. Since a user may wish to log in from multiple locations, they may specify a resource. A resource identifies a particular client belonging to the user for example home, work, or mobile. This may be included in the JID by appending a slash followed by the name of the resource. For example, the full JID of a user's mobile account could be username example. Each resource may have specified a numerical value called priority. Messages simply sent to username example. The highest priority is the one with largest numerical value. JIDs without a username part are also valid, and may be used for system messages and control of special features on the server. A resource remains optional for these JIDs as well. The means to route messages based on a logical endpoint identifier - the JID, instead of by an explicit IP Address present opportunities to use XMPP as an implementation on top of different underlay networks. Connecting to other protocols Alice sends a message through the XMPP net to the ICQ transport. The message is next routed to Bob via the ICQ network. One of the original design goals of the early Jabber open-source community was enabling users to connect to multiple instant messaging systems especially non-XMPP systems through a single client application. This was done through entities called transports or gateways to other instant messaging protocols, but also to protocols such as or. Unlike , XMPP provides this access at the server level by communicating via special gateway services running alongside an XMPP server. Thus, such gateways function as client proxies the gateway authenticates on the user's behalf on the non-XMPP service. As a result, any client that fully supports XMPP can access any network with a gateway without extra code in the client, and without the need for the client to have direct access to the Internet. However, the client proxy model may violate on the protocol used although such terms of service are not legally enforceable in several countries and also requires the user to send their IM username and password to the third-party site that operates the transport which may raise privacy and security concerns. Another type of gateway is a server-to-server gateway, which enables a non-XMPP server deployment to connect to native XMPP servers using the built in interdomain federation features of XMPP. You can help by. Relevant discussion may be found on the. June 2016 XMPP provides a general framework for messaging across a network, which offers a multitude of applications beyond traditional Instant Messaging IM and the distribution of Presence data. While several protocols exist today such as or the , XMPP provides a solid base for the discovery of services residing locally or across a network, and the availability of these services via presence information , as specified by XEP-0030 DISCO. Building on its capability to support discovery across local , XMPP is well-suited for where virtual machines, networks, and firewalls would otherwise present obstacles to alternative service discovery and presence-based solutions. Cloud computing and storage systems rely on various forms of communication over multiple levels, including not only messaging between systems to relay state but also the migration or distribution of larger objects, such as storage or virtual machines. Along with authentication and in-transit data protection, XMPP can be applied at a variety of levels and may prove ideal as an extensible middleware or MOM protocol. Here the majority of the applications have nothing to do with human communications i. XMPP is implemented by a large number of clients, servers, and code libraries. These implementations are provided under a variety of software licenses. As an alternative to the TCP transport, the XMPP community has also developed an transport for web clients as well as users behind restricted. In the original specification, XMPP could use HTTP in two ways: polling and binding. The polling method, now deprecated, essentially implies messages stored on a server-side database are being fetched and posted regularly by an XMPP client by way of HTTP 'GET' and 'POST' requests. The binding method, implemented using Bidirectional-streams Over Synchronous HTTP , allows servers to push messages to clients as soon as they are sent. This push model of notification is more efficient than polling, where many of the polls return no new data. Because the client uses HTTP, most firewalls allow clients to fetch and post messages without any hindrances. Thus, in scenarios where the TCP port used by XMPP is blocked, a server can listen on the normal HTTP port and the traffic should pass without problems. Various websites let people sign into XMPP via a browser. Furthermore, there are open public servers that listen on standard http port 80 and https port 443 ports, and hence allow connections from behind most firewalls. However, the IANA-registered port for BOSH is actually 5280, not 80. Various hosting services, such as , enable hosting customers to choose XMPP services alongside more traditional web and email services. Specialized XMPP hosting services also exist in form of so that domain owners need not directly run their own XMPP servers, including Connect, Chrome. Some of the largest messaging providers use, or have been using, various forms of XMPP based protocols in their backend systems without necessarily exposing this fact to their end users. This includes , and the deprecated Facebook messaging system. Most of these deployments are built on the , -based XMPP server called. XMPP is also used in deployments of non-IM services, including smart grid systems such as applications, message-oriented middleware, and as a replacement for to provide text messaging on many clients. XMPP is the for private chat in gaming related platforms such as , , , and the now discontinued. Two notable exceptions are and ; both use their own messaging protocols. XSF The XSF develops and publishes extensions to XMPP through a standards process centered on XMPP Extension Protocols XEPs, previously known as Jabber Enhancement Proposals - JEPs. Several XMPP extensions are part of the experimental implementation: Efficient XML Interchange EXI Format; Sensor Data; Provisioning; Control; Concentrators; Discovery. These efforts are documented on a page in the XMPP wiki dedicated to Internet of Things and the XMPP IoT mailing list. A connection is authenticated with SASL and with TLS. Currently JIDs use PRECIS as defined in for handling of characters outside the ASCII range. Competing standards XMPP has often been regarded as a competitor to , based on SIP , as the standard protocol for instant messaging and presence notification. The XMPP extension for multi-user chat can be seen as a competitor to IRC , although IRC is far simpler, has far fewer features, and is far more widely used. Strengths Decentralization The architecture of the XMPP network is similar to email; anyone can run their own XMPP server and there is no central master server. Open standards The formalized XMPP as an approved instant messaging and presence technology under the name of XMPP the latest specifications are and. No royalties or granted permissions are required to implement these specifications. History XMPP technologies have been in use since 1999. Many implementations of the XMPP standards exist for clients, servers, components, and code libraries. Security XMPP servers can be isolated e. Flexibility Custom functionality can be built on top of XMPP. To maintain interoperability, common extensions are managed by the. XMPP applications beyond IM include , , , , , gaming, , , and , VoIP, and. Weaknesses Does not support Quality of Service QoS Assured delivery of messages has to be built on-top of the XMPP layer. There are two XEPs proposed to deal with this issue, which is a draft standard, and which is considered experimental. Text-based communication Since XML is text based, normal XMPP has a higher network overhead compared to purely binary solutions. This issue is being addressed by the experimental , where XML is serialized in a very efficient binary manner, especially in schema-informed mode. In-band binary data transfer is limited must be first encoded before it can be transmitted in-band. Therefore, any significant amount of binary data e. The best example of this is the XMPP Extension Protocol,. Extensions The or XSF formerly the Jabber Software Foundation is active in developing open XMPP extensions, so called XEP. However, extensions can also be defined by any individual, software project, or organization. Another example is the federation protocol in , which is based on XMPP. Oslo: University of Stockholm. Archived from PDF on May 10, 2011. Retrieved May 4, 2014. Archived from on November 3, 2007. Retrieved November 30, 2007. Archived from on December 13, 2009. Retrieved December 14, 2009. Retrieved November 30, 2007. Archived from on January 20, 2008. Retrieved January 17, 2008. Archived from on December 23, 2009. Retrieved January 2, 2010. Retrieved February 11, 2010. Retrieved July 5, 2015. Retrieved January 6, 2017.

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Sad to see so many comments that seem like knee-jerk or one-sided criticism. I can call, on 2g crappy China Mobile to colleagues in the EU where Skype and Whatsapp will not even difference or send anything over. It's a pity how 'the crowd' is now dictating the direction in which technology evolves. They then claim that they can provide overseas purchasing services but sell fake luxury goods at the same price as the true one. By forming a closed loop ecosystem, Cogobuy met each entrepreneur and innovator, even the entire IoT industry. It can exchange contacts with people nearby viaas well as providing various features for contacting people at random if desired if people are open to it. Journal of Interactive Marketing. Settlement Period: Settlement shall be made based on T+1, which means a transaction on T day shall be settled on T+1 in case of a statutory public holiday at the place where Tenpay is located, settlement shall be made on the day following the statutory public holiday. You'd adjust the delay wechat protocol pdf so that you have time to tell WeChat to connect; note that a longer delay will give more false positives in the diff output.