Internet Engineering Task Force (IETF)I. Fette
Request for Comments: 6455Google, Inc.
Category: Standards TrackA. Melnikov
ISSN: 2070-1721Isode Ltd.
December 2011

meine stadt de partnersuche kostenlos The WebSocket Protocol

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christliche partnerbörsen The WebSocket Protocol enables two-way communication between a client running untrusted code in a controlled environment to a remote host that has opted-in to communications from that code. The security model used for this is the origin-based security model commonly used by web browsers. The protocol consists of an opening handshake followed by basic message framing, layered over TCP. The goal of this technology is to provide a mechanism for browser-based applications that need two-way communication with servers that does not rely on opening multiple HTTP connections (e.g., using XMLHttpRequest or <iframe>s and long polling).partnersuche anzeigen beispiele

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natalya partnervermittlung This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.spirituelle partnersuche kostenlos

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partnervermittlung landwirtschaftliches wochenblatt Copyright © 2011 IETF Trust and the persons identified as the document authors. All rights reserved.lieber single und glücklich

landwirtschaftliche partnervermittlung bayern This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (single und glücklich bilder) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.ewig single und glücklich


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erfolgreiche partnersuche ab 50 Historically, creating web applications that need bidirectional communication between a client and a server (e.g., instant messaging and gaming applications) has required an abuse of HTTP to poll the server for updates while sending upstream notifications as distinct HTTP calls [RFC6202].welche partnerbörse ab 50

erfolgreiche partnersuche This results in a variety of problems: partnerbörsen ab 50

  • The server is forced to use a number of different underlying TCP connections for each client: one for sending information to the client and a new one for each incoming message.
  • The wire protocol has a high overhead, with each client-to-server message having an HTTP header.
  • The client-side script is forced to maintain a mapping from the outgoing connections to the incoming connection to track replies.

spielautomaten kostenlos spielen ohne anmeldung merkur A simpler solution would be to use a single TCP connection for traffic in both directions. This is what the WebSocket Protocol provides. Combined with the WebSocket API [WSAPI], it provides an alternative to HTTP polling for two-way communication from a web page to a remote server.partnerbörse ab 50 jahren

partnersuche wolfratshausen The same technique can be used for a variety of web applications: games, stock tickers, multiuser applications with simultaneous editing, user interfaces exposing server-side services in real time, etc.yuppie partnersuche

singles ab 40 kostenlos The WebSocket Protocol is designed to supersede existing bidirectional communication technologies that use HTTP as a transport layer to benefit from existing infrastructure (proxies, filtering, authentication). Such technologies were implemented as trade-offs between efficiency and reliability because HTTP was not initially meant to be used for bidirectional communication (see [RFC6202] for further discussion). The WebSocket Protocol attempts to address the goals of existing bidirectional HTTP technologies in the context of the existing HTTP infrastructure; as such, it is designed to work over HTTP ports 80 and 443 as well as to support HTTP proxies and intermediaries, even if this implies some complexity specific to the current environment. However, the design does not limit WebSocket to HTTP, and future implementations could use a simpler handshake over a dedicated port without reinventing the entire protocol. This last point is important because the traffic patterns of interactive messaging do not closely match standard HTTP traffic and can induce unusual loads on some components.online dating profil bild

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GET /chat HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
Origin: http://example.com
Sec-WebSocket-Protocol: chat, superchat
Sec-WebSocket-Version: 13
          

100 free dating site in usa canada and australia The handshake from the server looks as follows:partnersuche frankreich kostenlos

HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
Sec-WebSocket-Protocol: chat
          

100 free online dating sites in usa The leading line from the client follows the Request-Line format. The leading line from the server follows the Status-Line format. The Request-Line and Status-Line productions are defined in [RFC2616].partnerbörse senioren

100 free mobile dating site in usa An unordered set of header fields comes after the leading line in both cases. The meaning of these header fields is specified in partnersuche partnerbörse 50plus senioren of this document. Additional header fields may also be present, such as cookies [RFC6265]. The format and parsing of headers is as defined in [RFC2616].singlebörse kostenfrei 50+

top 100 free dating site in usa Once the client and server have both sent their handshakes, and if the handshake was successful, then the data transfer part starts. This is a two-way communication channel where each side can, independently from the other, send data at will.singlebörsen kostenfrei

new 100 free dating site in usa After a successful handshake, clients and servers transfer data back and forth in conceptual units referred to in this specification as "messages". On the wire, a message is composed of one or more frames. The WebSocket message does not necessarily correspond to a particular network layer framing, as a fragmented message may be coalesced or split by an intermediary.singlebörse kostenlos leipzig

100 free dating site in usa and australia A frame has an associated type. Each frame belonging to the same message contains the same type of data. Broadly speaking, there are types for textual data (which is interpreted as UTF-8 [RFC3629] text), binary data (whose interpretation is left up to the application), and control frames (which are not intended to carry data for the application but instead for protocol-level signaling, such as to signal that the connection should be closed). This version of the protocol defines six frame types and leaves ten reserved for future use.kostenfreie singlebörsen ab 40

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GET /chat HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
Origin: http://example.com
Sec-WebSocket-Protocol: chat, superchat
Sec-WebSocket-Version: 13
          

singlebörsen im test österreich In compliance with [RFC2616], header fields in the handshake may be sent by the client in any order, so the order in which different header fields are received is not significant.partnersuche zeitz

singlebörse test neu.de The "Request-URI" of the GET method [RFC2616] is used to identify the endpoint of the WebSocket connection, both to allow multiple domains to be served from one IP address and to allow multiple WebSocket endpoints to be served by a single server.partnersuche zeitungsanzeige

singlebörsen im test kostenlos The client includes the hostname in the |Host| header field of its handshake as per [RFC2616], so that both the client and the server can verify that they agree on which host is in use.partnersuche zeitungsannoncen

singlebörsen im test 2013 Additional header fields are used to select options in the WebSocket Protocol. Typical options available in this version are the subprotocol selector (|Sec-WebSocket-Protocol|), list of extensions support by the client (|Sec-WebSocket-Extensions|), |Origin| header field, etc. The |Sec-WebSocket-Protocol| request-header field can be used to indicate what subprotocols (application-level protocols layered over the WebSocket Protocol) are acceptable to the client. The server selects one or none of the acceptable protocols and echoes that value in its handshake to indicate that it has selected that protocol.partnersuche zeitung berlin

     Sec-WebSocket-Protocol: chat

singlebörse im test The |Origin| header field [RFC6454] is used to protect against unauthorized cross-origin use of a WebSocket server by scripts using the WebSocket API in a web browser. The server is informed of the script origin generating the WebSocket connection request. If the server does not wish to accept connections from this origin, it can choose to reject the connection by sending an appropriate HTTP error code. This header field is sent by browser clients; for non-browser clients, this header field may be sent if it makes sense in the context of those clients.partnersuche zeitung chemnitz

singlebörsen im test 2012 Finally, the server has to prove to the client that it received the client's WebSocket handshake, so that the server doesn't accept connections that are not WebSocket connections. This prevents an attacker from tricking a WebSocket server by sending it carefully crafted packets using XMLHttpRequest [XMLHttpRequest] or a form submission.single männer kostenlos

100 free australian dating sites To prove that the handshake was received, the server has to take two pieces of information and combine them to form a response. The first piece of information comes from the |Sec-WebSocket-Key| header field in the client handshake:online partnersuche erfahrungsberichte

     Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
          

100 free dating sites perth australia For this header field, the server has to take the value (as present in the header field, e.g., the base64-encoded [RFC4648] version minus any leading and trailing whitespace) and concatenate this with the Globally Unique Identifier (GUID, [RFC4122]) "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" in string form, which is unlikely to be used by network endpoints that do not understand the WebSocket Protocol. A SHA-1 hash (160 bits) [FIPS.180-3], base64-encoded (see Section 4 of [RFC4648]), of this concatenation is then returned in the server's handshake.gutes motto partnersuche

partnersuche für akademiker Concretely, if as in the example above, the |Sec-WebSocket-Key| header field had the value "dGhlIHNhbXBsZSBub25jZQ==", the server would concatenate the string "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" to form the string "dGhlIHNhbXBsZSBub25jZQ==258EAFA5-E914-47DA-95CA-C5AB0DC85B11". The server would then take the SHA-1 hash of this, giving the value 0xb3 0x7a 0x4f 0x2c 0xc0 0x62 0x4f 0x16 0x90 0xf6 0x46 0x06 0xcf 0x38 0x59 0x45 0xb2 0xbe 0xc4 0xea. This value is then base64-encoded (see Section 4 of [RFC4648]), to give the value "s3pPLMBiTxaQ9kYGzzhZRbK+xOo=". This value would then be echoed in the |Sec-WebSocket-Accept| header field.lustiges motto partnersuche

partnersuche für akademiker und singles mit niveau The handshake from the server is much simpler than the client handshake. The first line is an HTTP Status-Line, with the status code 101:partnersuche motto

HTTP/1.1 101 Switching Protocols

100 completely free dating sites uk Any status code other than 101 indicates that the WebSocket handshake has not completed and that the semantics of HTTP still apply. The headers follow the status code.partnerbörsen test 2015

best 100 free dating sites uk The |Connection| and |Upgrade| header fields complete the HTTP Upgrade. The |Sec-WebSocket-Accept| header field indicates whether the server is willing to accept the connection. If present, this header field must include a hash of the client's nonce sent in |Sec-WebSocket-Key| along with a predefined GUID. Any other value must not be interpreted as an acceptance of the connection by the server.partnersuche in essen

HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
          

wimmelbilder kostenlos ohne anmeldung online spielen These fields are checked by the WebSocket client for scripted pages. If the |Sec-WebSocket-Accept| value does not match the expected value, if the header field is missing, or if the HTTP status code is not 101, the connection will not be established, and WebSocket frames will not be sent.partnerbörse nürnberg

sexualpartner suchen Option fields can also be included. In this version of the protocol, the main option field is |Sec-WebSocket-Protocol|, which indicates the subprotocol that the server has selected. WebSocket clients verify that the server included one of the values that was specified in the WebSocket client's handshake. A server that speaks multiple subprotocols has to make sure it selects one based on the client's handshake and specifies it in its handshake.partnersuche mit foto

     Sec-WebSocket-Protocol: chat

kontakt partnervermittlung graz The server can also set cookie-related option fields to set cookies, as described in [RFC6265].partnersuche foto hochladen

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partnervermittlung kontakt The closing handshake is far simpler than the opening handshake.singlebörsen im vergleich stiftung warentest

kontakt partnervermittlung kosten Either peer can send a control frame with data containing a specified control sequence to begin the closing handshake (detailed in partnervermittlung ukraine kostenlos). Upon receiving such a frame, the other peer sends a Close frame in response, if it hasn't already sent one. Upon receiving that control frame, the first peer then closes the connection, safe in the knowledge that no further data is forthcoming.partnervermittlung ukraine russland

kontakt partnervermittlung elisabeth barasits After sending a control frame indicating the connection should be closed, a peer does not send any further data; after receiving a control frame indicating the connection should be closed, a peer discards any further data received.partnervermittlung ukraine kosten

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partnervermittlung japanische frauen The closing handshake is intended to complement the TCP closing handshake (FIN/ACK), on the basis that the TCP closing handshake is not always reliable end-to-end, especially in the presence of intercepting proxies and other intermediaries.partnersuche münster

partnersuche in irland By sending a Close frame and waiting for a Close frame in response, certain cases are avoided where data may be unnecessarily lost. For instance, on some platforms, if a socket is closed with data in the receive queue, a RST packet is sent, which will then cause recv() to fail for the party that received the RST, even if there was data waiting to be read.exklusive partnervermittlung

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partnersuche meine stadt berlin The WebSocket Protocol is designed on the principle that there should be minimal framing (the only framing that exists is to make the protocol frame-based instead of stream-based and to support a distinction between Unicode text and binary frames). It is expected that metadata would be layered on top of WebSocket by the application layer, in the same way that metadata is layered on top of TCP by the application layer (e.g., HTTP).christliche singlebörse schweiz kostenlos

partnersuche meine stadt dresden Conceptually, WebSocket is really just a layer on top of TCP that does the following: singlebörsen österreich gratis

  • adds a web origin-based security model for browsers
  • adds an addressing and protocol naming mechanism to support multiple services on one port and multiple host names on one IP address
  • layers a framing mechanism on top of TCP to get back to the IP packet mechanism that TCP is built on, but without length limits
  • includes an additional closing handshake in-band that is designed to work in the presence of proxies and other intermediaries

free online dating sim games for guys Other than that, WebSocket adds nothing. Basically it is intended to be as close to just exposing raw TCP to script as possible given the constraints of the Web. It's also designed in such a way that its servers can share a port with HTTP servers, by having its handshake be a valid HTTP Upgrade request. One could conceptually use other protocols to establish client-server messaging, but the intent of WebSockets is to provide a relatively simple protocol that can coexist with HTTP and deployed HTTP infrastructure (such as proxies) and that is as close to TCP as is safe for use with such infrastructure given security considerations, with targeted additions to simplify usage and keep simple things simple (such as the addition of message semantics).

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freenet singlebörse erfahrungen The WebSocket Protocol uses the origin model used by web browsers to restrict which web pages can contact a WebSocket server when the WebSocket Protocol is used from a web page. Naturally, when the WebSocket Protocol is used by a dedicated client directly (i.e., not from a web page through a web browser), the origin model is not useful, as the client can provide any arbitrary origin string.internet partnersuche tipps

german english dating sites This protocol is intended to fail to establish a connection with servers of pre-existing protocols like SMTP [RFC5321] and HTTP, while allowing HTTP servers to opt-in to supporting this protocol if desired. This is achieved by having a strict and elaborate handshake and by limiting the data that can be inserted into the connection before the handshake is finished (thus limiting how much the server can be influenced).partnersuche internet junge leute

movie star planet kostenlos anmelden deutsch It is similarly intended to fail to establish a connection when data from other protocols, especially HTTP, is sent to a WebSocket server, for example, as might happen if an HTML "form" were submitted to a WebSocket server. This is primarily achieved by requiring that the server prove that it read the handshake, which it can only do if the handshake contains the appropriate parts, which can only be sent by a WebSocket client. In particular, at the time of writing of this specification, fields starting with |Sec-| cannot be set by an attacker from a web browser using only HTML and JavaScript APIs such as XMLHttpRequest [XMLHttpRequest].partnersuche internet erfahrungsberichte

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speed dating online spiel The WebSocket Protocol is an independent TCP-based protocol. Its only relationship to HTTP is that its handshake is interpreted by HTTP servers as an Upgrade request.partnervermittlung kubanerinnen

speed dating 3 online game By default, the WebSocket Protocol uses port 80 for regular WebSocket connections and port 443 for WebSocket connections tunneled over Transport Layer Security (TLS) [RFC2818].partnervermittlung kuba

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speed dating online game free When a connection is to be made to a port that is shared by an HTTP server (a situation that is quite likely to occur with traffic to ports 80 and 443), the connection will appear to the HTTP server to be a regular GET request with an Upgrade offer. In relatively simple setups with just one IP address and a single server for all traffic to a single hostname, this might allow a practical way for systems based on the WebSocket Protocol to be deployed. In more elaborate setups (e.g., with load balancers and multiple servers), a dedicated set of hosts for WebSocket connections separate from the HTTP servers is probably easier to manage. At the time of writing of this specification, it should be noted that connections on ports 80 and 443 have significantly different success rates, with connections on port 443 being significantly more likely to succeed, though this may change with time.partnersuche asien deutschland

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book of ra kostenlos spielen ohne anmeldung deutsch novoline The client can request that the server use a specific subprotocol by including the |Sec-WebSocket-Protocol| field in its handshake. If it is specified, the server needs to include the same field and one of the selected subprotocol values in its response for the connection to be established.esoterik forum partnersuche

christliche singleseiten These subprotocol names should be registered as per partnersuche karlsruhe umgebung. To avoid potential collisions, it is recommended to use names that contain the ASCII version of the domain name of the subprotocol's originator. For example, if Example Corporation were to create a Chat subprotocol to be implemented by many servers around the Web, they could name it "chat.example.com". If the Example Organization called their competing subprotocol "chat.example.org", then the two subprotocols could be implemented by servers simultaneously, with the server dynamically selecting which subprotocol to use based on the value sent by the client.partnervermittlung aachen lütticher str

christliche freizeiten für singles Subprotocols can be versioned in backward-incompatible ways by changing the subprotocol name, e.g., going from "bookings.example.net" to "v2.bookings.example.net". These subprotocols would be considered completely separate by WebSocket clients. Backward-compatible versioning can be implemented by reusing the same subprotocol string but carefully designing the actual subprotocol to support this kind of extensibility.partnervermittlung aachen

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christen singles All diagrams, examples, and notes in this specification are non-normative, as are all sections explicitly marked non-normative. Everything else in this specification is normative.partnersuche verwitwete

christliche singles österreich The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].singlebörse ohne kosten

professional online dating profile writing service uk Requirements phrased in the imperative as part of algorithms (such as "strip any leading space characters" or "return false and abort these steps") are to be interpreted with the meaning of the key word ("MUST", "SHOULD", "MAY", etc.) used in introducing the algorithm.singlebörse ohne zusätzliche kosten

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singlebörsen testsieger Names of header fields or variables are indicated like |this|.partnervermittlung vorarlberg

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singlebörse testsieger kostenlos This document references the procedure to Fail the WebSocket Connection. This procedure is defined in partnersuche neuruppin.singlebörsen kostenlos testen

merkur spielothek online spielen kostenlos ohne anmeldung Converting a string to ASCII lowercase means replacing all characters in the range U+0041 to U+005A (i.e., LATIN CAPITAL LETTER A to LATIN CAPITAL LETTER Z) with the corresponding characters in the range U+0061 to U+007A (i.e., LATIN SMALL LETTER A to LATIN SMALL LETTER Z).singlebörse kostenlos testsieger

gute singlebörse junge leute Comparing two strings in an ASCII case-insensitive manner means comparing them exactly, code point for code point, except that the characters in the range U+0041 to U+005A (i.e., LATIN CAPITAL LETTER A to LATIN CAPITAL LETTER Z) and the corresponding characters in the range U+0061 to U+007A (i.e., LATIN SMALL LETTER A to LATIN SMALL LETTER Z) are considered to also match.partnersuche ukraine erfahrungen

monopoly online spielen kostenlos ohne anmeldung deutsch pogo The term "URI" is used in this document as defined in [RFC3986].partnersuche ukraine kostenlos

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partnersuche kostenlos magdeburg Note that this document uses both [RFC5234] and [RFC2616] variants of ABNF in different sections.singlebörsen schweiz vergleich

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single club in frankfurt main This specification defines two URI schemes, using the ABNF syntax defined in RFC 5234 [RFC5234], and terminology and ABNF productions defined by the URI specification RFC 3986 [RFC3986].singlebörsen schweiz kostenlos

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       ws-URI = "ws:" "//" host [ ":" port ] path [ "?" query ]
       wss-URI = "wss:" "//" host [ ":" port ] path [ "?" query ]

       host = <host, defined in [RFC3986], Section 3.2.2>
       port = <port, defined in [RFC3986], Section 3.2.3>
       path = <path-abempty, defined in [RFC3986], Section 3.3>
       query = <query, defined in [RFC3986], Section 3.4>

countries allow single parent international adoption The port component is OPTIONAL; the default for "ws" is port 80, while the default for "wss" is port 443.partnersuche reportage

alte merkur spielautomaten kostenlos spielen ohne anmeldung The URI is called "secure" (and it is said that "the secure flag is set") if the scheme component matches "wss" case-insensitively.singlebörsen vergleich frauen kostenlos

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christliche singlebörsen im test Fragment identifiers are meaningless in the context of WebSocket URIs and MUST NOT be used on these URIs. As with any URI scheme, the character "#", when not indicating the start of a fragment, MUST be escaped as %23.partnervermittlung petra geldern

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single parent adoption agencies ohio When the client is to Establish a WebSocket Connection given a set of (/host/, /port/, /resource name/, and /secure/ flag), along with a list of /protocols/ and /extensions/ to be used, and an /origin/ in the case of web browsers, it MUST open a connection, send an opening handshake, and read the server's handshake in response. The exact requirements of how the connection should be opened, what should be sent in the opening handshake, and how the server's response should be interpreted are as follows in this section. In the following text, we will use terms from www.partnersuche.de kosten, such as "/host/" and "/secure/ flag" as defined in that section. partnersuche kostenlos leipzig

  1. The components of the WebSocket URI passed into this algorithm (/host/, /port/, /resource name/, and /secure/ flag) MUST be valid according to the specification of WebSocket URIs specified in online partnersuche erste nachricht. If any of the components are invalid, the client MUST Fail the WebSocket Connection and abort these steps.
  2. If the client already has a WebSocket connection to the remote host (IP address) identified by /host/ and port /port/ pair, even if the remote host is known by another name, the client MUST wait until that connection has been established or for that connection to have failed. There MUST be no more than one connection in a CONNECTING state. If multiple connections to the same IP address are attempted simultaneously, the client MUST serialize them so that there is no more than one connection at a time running through the following steps.

    If the client cannot determine the IP address of the remote host (for example, because all communication is being done through a proxy server that performs DNS queries itself), then the client MUST assume for the purposes of this step that each host name refers to a distinct remote host, and instead the client SHOULD limit the total number of simultaneous pending connections to a reasonably low number (e.g., the client might allow simultaneous pending connections to a.example.com and b.example.com, but if thirty simultaneous connections to a single host are requested, that may not be allowed). For example, in a web browser context, the client needs to consider the number of tabs the user has open in setting a limit to the number of simultaneous pending connections.

    NOTE: This makes it harder for a script to perform a denial-of-service attack by just opening a large number of WebSocket connections to a remote host. A server can further reduce the load on itself when attacked by pausing before closing the connection, as that will reduce the rate at which the client reconnects.

    NOTE: There is no limit to the number of established WebSocket connections a client can have with a single remote host. Servers can refuse to accept connections from hosts/IP addresses with an excessive number of existing connections or disconnect resource-hogging connections when suffering high load.
  3. Proxy Usage: If the client is configured to use a proxy when using the WebSocket Protocol to connect to host /host/ and port /port/, then the client SHOULD connect to that proxy and ask it to open a TCP connection to the host given by /host/ and the port given by /port/.
    • EXAMPLE: For example, if the client uses an HTTP proxy for all traffic, then if it was to try to connect to port 80 on server example.com, it might send the following lines to the proxy server: online chat schweiz ohne anmeldung
                 CONNECT example.com:80 HTTP/1.1
                 Host: example.com
                    
    • If there was a password, the connection might look like: online chat jochen schweizer
                 CONNECT example.com:80 HTTP/1.1
                 Host: example.com
                 Proxy-authorization: Basic ZWRuYW1vZGU6bm9jYXBlcyE=
                    
    If the client is not configured to use a proxy, then a direct TCP connection SHOULD be opened to the host given by /host/ and the port given by /port/.

    NOTE: Implementations that do not expose explicit UI for selecting a proxy for WebSocket connections separate from other proxies are encouraged to use a SOCKS5 [RFC1928] proxy for WebSocket connections, if available, or failing that, to prefer the proxy configured for HTTPS connections over the proxy configured for HTTP connections.

    For the purpose of proxy autoconfiguration scripts, the URI to pass the function MUST be constructed from /host/, /port/, /resource name/, and the /secure/ flag using the definition of a WebSocket URI as given in online partnersuche tipps.

    NOTE: The WebSocket Protocol can be identified in proxy autoconfiguration scripts from the scheme ("ws" for unencrypted connections and "wss" for encrypted connections).
  4. If the connection could not be opened, either because a direct connection failed or because any proxy used returned an error, then the client MUST Fail the WebSocket Connection and abort the connection attempt.
  5. If /secure/ is true, the client MUST perform a TLS handshake over the connection after opening the connection and before sending the handshake data [RFC2818]. If this fails (e.g., the server's certificate could not be verified), then the client MUST Fail the WebSocket Connection and abort the connection. Otherwise, all further communication on this channel MUST run through the encrypted tunnel [RFC5246].

    Clients MUST use the Server Name Indication extension in the TLS handshake [RFC6066].

single parent adoption agencies california Once a connection to the server has been established (including a connection via a proxy or over a TLS-encrypted tunnel), the client MUST send an opening handshake to the server. The handshake consists of an HTTP Upgrade request, along with a list of required and optional header fields. The requirements for this handshake are as follows. online partnersuche

  1. The handshake MUST be a valid HTTP request as specified by [RFC2616].
  2. The method of the request MUST be GET, and the HTTP version MUST be at least 1.1.

    For example, if the WebSocket URI is "ws://example.com/chat", the first line sent should be "GET /chat HTTP/1.1".
  3. The "Request-URI" part of the request MUST match the /resource name/ defined in online partnersuche test (a relative URI) or be an absolute http/https URI that, when parsed, has a /resource name/, /host/, and /port/ that match the corresponding ws/wss URI.
  4. The request MUST contain a |Host| header field whose value contains /host/ plus optionally ":" followed by /port/ (when not using the default port).
  5. The request MUST contain an |Upgrade| header field whose value MUST include the "websocket" keyword.
  6. The request MUST contain a |Connection| header field whose value MUST include the "Upgrade" token.
  7. The request MUST include a header field with the name |Sec-WebSocket-Key|. The value of this header field MUST be a nonce consisting of a randomly selected 16-byte value that has been base64-encoded (see Section 4 of [RFC4648]). The nonce MUST be selected randomly for each connection.

    NOTE: As an example, if the randomly selected value was the sequence of bytes 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0a 0x0b 0x0c 0x0d 0x0e 0x0f 0x10, the value of the header field would be "AQIDBAUGBwgJCgsMDQ4PEC=="
  8. The request MUST include a header field with the name |Origin| [RFC6454] if the request is coming from a browser client. If the connection is from a non-browser client, the request MAY include this header field if the semantics of that client match the use-case described here for browser clients. The value of this header field is the ASCII serialization of origin of the context in which the code establishing the connection is running. See [RFC6454] for the details of how this header field value is constructed.

    As an example, if code downloaded from www.example.com attempts to establish a connection to ww2.example.com, the value of the header field would be "http://www.example.com".
  9. The request MUST include a header field with the name |Sec-WebSocket-Version|. The value of this header field MUST be 13.

    NOTE: Although draft versions of this document (-09, -10, -11, and -12) were posted (they were mostly comprised of editorial changes and clarifications and not changes to the wire protocol), values 9, 10, 11, and 12 were not used as valid values for Sec-WebSocket-Version. These values were reserved in the IANA registry but were not and will not be used.
  10. The request MAY include a header field with the name |Sec-WebSocket-Protocol|. If present, this value indicates one or more comma-separated subprotocol the client wishes to speak, ordered by preference. The elements that comprise this value MUST be non-empty strings with characters in the range U+0021 to U+007E not including separator characters as defined in [RFC2616] and MUST all be unique strings. The ABNF for the value of this header field is 1#token, where the definitions of constructs and rules are as given in [RFC2616].
  11. The request MAY include a header field with the name |Sec-WebSocket-Extensions|. If present, this value indicates the protocol-level extension(s) the client wishes to speak. The interpretation and format of this header field is described in online partnersuche kosten.
  12. The request MAY include any other header fields, for example, cookies [RFC6265] and/or authentication-related header fields such as the |Authorization| header field [RFC2616], which are processed according to documents that define them.

gay dating websites switzerland Once the client's opening handshake has been sent, the client MUST wait for a response from the server before sending any further data. The client MUST validate the server's response as follows: online partnersuche erfolgsquote

  1. If the status code received from the server is not 101, the client handles the response per HTTP [RFC2616] procedures. In particular, the client might perform authentication if it receives a 401 status code; the server might redirect the client using a 3xx status code (but clients are not required to follow them), etc. Otherwise, proceed as follows.
  2. If the response lacks an |Upgrade| header field or the |Upgrade| header field contains a value that is not an ASCII case-insensitive match for the value "websocket", the client MUST Fail the WebSocket Connection.
  3. If the response lacks a |Connection| header field or the |Connection| header field doesn't contain a token that is an ASCII case-insensitive match for the value "Upgrade", the client MUST Fail the WebSocket Connection.
  4. If the response lacks a |Sec-WebSocket-Accept| header field or the |Sec-WebSocket-Accept| contains a value other than the base64-encoded SHA-1 of the concatenation of the |Sec-WebSocket-Key| (as a string, not base64-decoded) with the string "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" but ignoring any leading and trailing whitespace, the client MUST Fail the WebSocket Connection.
  5. If the response includes a |Sec-WebSocket-Extensions| header field and this header field indicates the use of an extension that was not present in the client's handshake (the server has indicated an extension not requested by the client), the client MUST Fail the WebSocket Connection. (The parsing of this header field to determine which extensions are requested is discussed in online partnersuche vergleich.)
  6. If the response includes a |Sec-WebSocket-Protocol| header field and this header field indicates the use of a subprotocol that was not present in the client's handshake (the server has indicated a subprotocol not requested by the client), the client MUST Fail the WebSocket Connection.

all free dating site in germany If the server's response does not conform to the requirements for the server's handshake as defined in this section and in partnersuche online wien, the client MUST Fail the WebSocket Connection.frau sucht freundin zum ausgehen

beste free dating seite Please note that according to [RFC2616], all header field names in both HTTP requests and HTTP responses are case-insensitive.frau sucht freundin in dresden

best free dating website If the server's response is validated as provided for above, it is said that The WebSocket Connection is Established and that the WebSocket Connection is in the OPEN state. The Extensions In Use is defined to be a (possibly empty) string, the value of which is equal to the value of the |Sec-WebSocket-Extensions| header field supplied by the server's handshake or the null value if that header field was not present in the server's handshake. The Subprotocol In Use is defined to be the value of the |Sec-WebSocket-Protocol| header field in the server's handshake or the null value if that header field was not present in the server's handshake. Additionally, if any header fields in the server's handshake indicate that cookies should be set (as defined by [RFC6265]), these cookies are referred to as Cookies Set During the Server's Opening Handshake.frauen aus osteuropa xenia droben

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best free dating site australia Servers MAY offload the management of the connection to other agents on the network, for example, load balancers and reverse proxies. In such a situation, the server for the purposes of this specification is considered to include all parts of the server-side infrastructure from the first device to terminate the TCP connection all the way to the server that processes requests and sends responses.frauen aus osteuropa in deutschland

best free dating site EXAMPLE: A data center might have a server that responds to WebSocket requests with an appropriate handshake and then passes the connection to another server to actually process the data frames. For the purposes of this specification, the "server" is the combination of both computers.singlebörsen gratis

singlebörsen gratis für frauen Reading the Client's Opening Handshake

great online dating profiles for guys When a client starts a WebSocket connection, it sends its part of the opening handshake. The server must parse at least part of this handshake in order to obtain the necessary information to generate the server part of the handshake.singlebörsen gratis test

ted talk hack online dating The client's opening handshake consists of the following parts. If the server, while reading the handshake, finds that the client did not send a handshake that matches the description below (note that as per [RFC2616], the order of the header fields is not important), including but not limited to any violations of the ABNF grammar specified for the components of the handshake, the server MUST stop processing the client's handshake and return an HTTP response with an appropriate error code (such as 400 Bad Request). singlebörsen gratis ohne anmeldung

  1. An HTTP/1.1 or higher GET request, including a "Request-URI" [RFC2616] that should be interpreted as a /resource name/ defined in singlebörsen gratis österreich (or an absolute HTTP/HTTPS URI containing the /resource name/).
  2. A |Host| header field containing the server's authority.
  3. An |Upgrade| header field containing the value "websocket", treated as an ASCII case-insensitive value.
  4. A |Connection| header field that includes the token "Upgrade", treated as an ASCII case-insensitive value.
  5. A |Sec-WebSocket-Key| header field with a base64-encoded (see Section 4 of [RFC4648]) value that, when decoded, is 16 bytes in length.
  6. A |Sec-WebSocket-Version| header field, with a value of 13.
  7. Optionally, an |Origin| header field. This header field is sent by all browser clients. A connection attempt lacking this header field SHOULD NOT be interpreted as coming from a browser client.
  8. Optionally, a |Sec-WebSocket-Protocol| header field, with a list of values indicating which protocols the client would like to speak, ordered by preference.
  9. Optionally, a |Sec-WebSocket-Extensions| header field, with a list of values indicating which extensions the client would like to speak. The interpretation of this header field is discussed in julie gmbh partnervermittlung bergen.
  10. Optionally, other header fields, such as those used to send cookies or request authentication to a server. Unknown header fields are ignored, as per [RFC2616].

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gratis singlebörsen im test When a client establishes a WebSocket connection to a server, the server MUST complete the following steps to accept the connection and send the server's opening handshake. partnersuche kostenlos für junge leute

  1. If the connection is happening on an HTTPS (HTTP-over-TLS) port, perform a TLS handshake over the connection. If this fails (e.g., the client indicated a host name in the extended client hello "server_name" extension that the server does not host), then close the connection; otherwise, all further communication for the connection (including the server's handshake) MUST run through the encrypted tunnel [RFC5246].
  2. The server can perform additional client authentication, for example, by returning a 401 status code with the corresponding |WWW-Authenticate| header field as described in [RFC2616].
  3. The server MAY redirect the client using a 3xx status code [RFC2616]. Note that this step can happen together with, before, or after the optional authentication step described above.
  4. Establish the following information:
    /origin/

    The |Origin| header field in the client's handshake indicates the origin of the script establishing the connection. The origin is serialized to ASCII and converted to lowercase. The server MAY use this information as part of a determination of whether to accept the incoming connection. If the server does not validate the origin, it will accept connections from anywhere. If the server does not wish to accept this connection, it MUST return an appropriate HTTP error code (e.g., 403 Forbidden) and abort the WebSocket handshake described in this section. For more detail, refer to partnerbörse für junge leute.
    /key/

    The |Sec-WebSocket-Key| header field in the client's handshake includes a base64-encoded value that, if decoded, is 16 bytes in length. This (encoded) value is used in the creation of the server's handshake to indicate an acceptance of the connection. It is not necessary for the server to base64-decode the |Sec-WebSocket-Key| value.
    /version/

    The |Sec-WebSocket-Version| header field in the client's handshake includes the version of the WebSocket Protocol with which the client is attempting to communicate. If this version does not match a version understood by the server, the server MUST abort the WebSocket handshake described in this section and instead send an appropriate HTTP error code (such as 426 Upgrade Required) and a |Sec-WebSocket-Version| header field indicating the version(s) the server is capable of understanding.
    /resource name/

    An identifier for the service provided by the server. If the server provides multiple services, then the value should be derived from the resource name given in the client's handshake in the "Request-URI" [RFC2616] of the GET method. If the requested service is not available, the server MUST send an appropriate HTTP error code (such as 404 Not Found) and abort the WebSocket handshake.
    /subprotocol/

    Either a single value representing the subprotocol the server is ready to use or null. The value chosen MUST be derived from the client's handshake, specifically by selecting one of the values from the |Sec-WebSocket-Protocol| field that the server is willing to use for this connection (if any). If the client's handshake did not contain such a header field or if the server does not agree to any of the client's requested subprotocols, the only acceptable value is null. The absence of such a field is equivalent to the null value (meaning that if the server does not wish to agree to one of the suggested subprotocols, it MUST NOT send back a |Sec-WebSocket-Protocol| header field in its response). The empty string is not the same as the null value for these purposes and is not a legal value for this field. The ABNF for the value of this header field is (token), where the definitions of constructs and rules are as given in [RFC2616].
    /extensions/

    A (possibly empty) list representing the protocol-level extensions the server is ready to use. If the server supports multiple extensions, then the value MUST be derived from the client's handshake, specifically by selecting one or more of the values from the |Sec-WebSocket-Extensions| field. The absence of such a field is equivalent to the null value. The empty string is not the same as the null value for these purposes. Extensions not listed by the client MUST NOT be listed. The method by which these values should be selected and interpreted is discussed in partnerbörse junge leute.
  5. If the server chooses to accept the incoming connection, it MUST reply with a valid HTTP response indicating the following.
    1. A Status-Line with a 101 response code as per RFC 2616 [RFC2616]. Such a response could look like "HTTP/1.1 101 Switching Protocols".
    2. An |Upgrade| header field with value "websocket" as per RFC 2616 [RFC2616].
    3. A |Connection| header field with value "Upgrade".
    4. A |Sec-WebSocket-Accept| header field. The value of this header field is constructed by concatenating /key/, defined above in step 4 in partnersuche singlebörse übersicht, with the string "258EAFA5-E914-47DA-95CA-C5AB0DC85B11", taking the SHA-1 hash of this concatenated value to obtain a 20-byte value and base64-encoding (see Section 4 of [RFC4648]) this 20-byte hash.

      The ABNF [RFC2616] of this header field is defined as follows: online chat schweiz
              Sec-WebSocket-Accept     = base64-value-non-empty
              base64-value-non-empty = (1*base64-data [ base64-padding ]) |
                                       base64-padding
              base64-data      = 4base64-character
              base64-padding   = (2base64-character "==") |
                                 (3base64-character "=")
              base64-character = ALPHA | DIGIT | "+" | "/"
                      
      NOTE: As an example, if the value of the |Sec-WebSocket-Key| header field in the client's handshake were "dGhlIHNhbXBsZSBub25jZQ==", the server would append the string "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" to form the string "dGhlIHNhbXBsZSBub25jZQ==258EAFA5-E914-47DA-95CA-C5AB0DC85B11". The server would then take the SHA-1 hash of this string, giving the value 0xb3 0x7a 0x4f 0x2c 0xc0 0x62 0x4f 0x16 0x90 0xf6 0x46 0x06 0xcf 0x38 0x59 0x45 0xb2 0xbe 0xc4 0xea. This value is then base64-encoded, to give the value "s3pPLMBiTxaQ9kYGzzhZRbK+xOo=", which would be returned in the |Sec-WebSocket-Accept| header field.
    5. Optionally, a |Sec-WebSocket-Protocol| header field, with a value /subprotocol/ as defined in step 4 in partnersuche singles mit kinderwunsch.
    6. Optionally, a |Sec-WebSocket-Extensions| header field, with a value /extensions/ as defined in step 4 in partnersuche single. If multiple extensions are to be used, they can all be listed in a single |Sec-WebSocket-Extensions| header field or split between multiple instances of the |Sec-WebSocket-Extensions| header field.

sims 2 spielen kostenlos ohne anmeldung deutsch This completes the server's handshake. If the server finishes these steps without aborting the WebSocket handshake, the server considers the WebSocket connection to be established and that the WebSocket connection is in the OPEN state. At this point, the server may begin sending (and receiving) data.partnersuche singles mit niveau

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sims 3 kostenlos spielen ohne anmelden deutsch This section is using ABNF syntax/rules from Section 2.1 of [RFC2616], including the "implied *LWS rule".partnerbörsen im vergleich stiftung warentest

best online dating profile writing service Note that the following ABNF conventions are used in this section. Some names of the rules correspond to names of the corresponding header fields. Such rules express values of the corresponding header fields, for example, the Sec-WebSocket-Key ABNF rule describes syntax of the |Sec-WebSocket-Key| header field value. ABNF rules with the "-Client" suffix in the name are only used in requests sent by the client to the server; ABNF rules with the "-Server" suffix in the name are only used in responses sent by the server to the client. For example, the ABNF rule Sec-WebSocket-Protocol-Client describes syntax of the |Sec-WebSocket-Protocol| header field value sent by the client to the server.partnerbörsen im vergleich kosten

chat room deutsch kostenlos ohne anmeldung The following new header fields can be sent during the handshake from the client to the server:partnerbörsen im vergleich kostenlos

   Sec-WebSocket-Key = base64-value-non-empty
   Sec-WebSocket-Extensions = extension-list
   Sec-WebSocket-Protocol-Client = 1#token
   Sec-WebSocket-Version-Client = version

   base64-value-non-empty = (1*base64-data [ base64-padding ]) |
                             base64-padding
   base64-data      = 4base64-character
   base64-padding   = (2base64-character "==") |
                      (3base64-character "=")
   base64-character = ALPHA | DIGIT | "+" | "/"
   extension-list = 1#extension
   extension = extension-token *( ";" extension-param )
   extension-token = registered-token
   registered-token = token
   extension-param = token [ "=" (token | quoted-string) ]
        ; When using the quoted-string syntax variant, the value
        ; after quoted-string unescaping MUST conform to the 
        ; 'token' ABNF.
   NZDIGIT       =  "1" | "2" | "3" | "4" | "5" | "6" |
                    "7" | "8" | "9"
   version = DIGIT | (NZDIGIT DIGIT) |
             ("1" DIGIT DIGIT) | ("2" DIGIT DIGIT)
             ; Limited to 0-255 range, with no leading zeros
          

free online dating german The following new header fields can be sent during the handshake from the server to the client:frauen suchen männer mit zukunft männer suchen frauen ohne vergangenheit

   Sec-WebSocket-Extensions = extension-list
   Sec-WebSocket-Accept     = base64-value-non-empty
   Sec-WebSocket-Protocol-Server = token
   Sec-WebSocket-Version-Server = 1#version
            

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free online dating websites in germany This section provides some guidance on supporting multiple versions of the WebSocket Protocol in clients and servers.partnersuche kostenlos grafschaft bentheim

partnersuche wien Using the WebSocket version advertisement capability (the |Sec-WebSocket-Version| header field), a client can initially request the version of the WebSocket Protocol that it prefers (which doesn't necessarily have to be the latest supported by the client). If the server supports the requested version and the handshake message is otherwise valid, the server will accept that version. If the server doesn't support the requested version, it MUST respond with a |Sec-WebSocket-Version| header field (or multiple |Sec-WebSocket-Version| header fields) containing all versions it is willing to use. At this point, if the client supports one of the advertised versions, it can repeat the WebSocket handshake using a new version value.partnersuche grafschaft bentheim

singlebörsen vergleich 2014 The following example demonstrates version negotiation described above:schweizer single hitparade 1988

GET /chat HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
...
Sec-WebSocket-Version: 25
          

singlebörsen vergleich österreich The response from the server might look as follows:schweizer hitparade singles top

HTTP/1.1 400 Bad Request
...
Sec-WebSocket-Version: 13, 8, 7
          

singlebörsen vergleich test Note that the last response from the server might also look like:schweizer single hitparade 1987

HTTP/1.1 400 Bad Request
...
Sec-WebSocket-Version: 13
Sec-WebSocket-Version: 8, 7
          

singlebörsen vergleich schweiz The client now repeats the handshake that conforms to version 13:schweizer single hitparade 2013

GET /chat HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
...
Sec-WebSocket-Version: 13
          

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partnersuche in frankenthal In the WebSocket Protocol, data is transmitted using a sequence of frames. To avoid confusing network intermediaries (such as intercepting proxies) and for security reasons that are further discussed in singlebörse christlich, a client MUST mask all frames that it sends to the server (see christliche singlebörse hamburg for further details). (Note that masking is done whether or not the WebSocket Protocol is running over TLS.) The server MUST close the connection upon receiving a frame that is not masked. In this case, a server MAY send a Close frame with a status code of 1002 (protocol error) as defined in christliche singlebörse münchen. A server MUST NOT mask any frames that it sends to the client. A client MUST close a connection if it detects a masked frame. In this case, it MAY use the status code 1002 (protocol error) as defined in christliche singlebörse gratis. (These rules might be relaxed in a future specification.)singlebörse christlich kostenlos

partnersuche in franken The base framing protocol defines a frame type with an opcode, a payload length, and designated locations for "Extension data" and "Application data", which together define the "Payload data". Certain bits and opcodes are reserved for future expansion of the protocol.partnersuche reiten

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free dating schweiz This wire format for the data transfer part is described by the ABNF [RFC5234] given in detail in this section. (Note that, unlike in other sections of this document, the ABNF in this section is operating on groups of bits. The length of each group of bits is indicated in a comment. When encoded on the wire, the most significant bit is the leftmost in the ABNF). A high-level overview of the framing is given in the following figure. In a case of conflict between the figure below and the ABNF specified later in this section, the figure is authoritative.ebay kleinanzeigen berlin kostenlos

   0                   1                   2                   3
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  +-+-+-+-+-------+-+-------------+-------------------------------+
  |F|R|R|R| opcode|M| Payload len |    Extended payload length    |
  |I|S|S|S|  (4)  |A|     (7)     |             (16/64)           |
  |N|V|V|V|       |S|             |   (if payload len==126/127)   |
  | |1|2|3|       |K|             |                               |
  +-+-+-+-+-------+-+-------------+ - - - - - - - - - - - - - - - +
  |     Extended payload length continued, if payload len == 127  |
  + - - - - - - - - - - - - - - - +-------------------------------+
  |                               |Masking-key, if MASK set to 1  |
  +-------------------------------+-------------------------------+
  | Masking-key (continued)       |          Payload Data         |
  +-------------------------------- - - - - - - - - - - - - - - - +
  :                     Payload Data continued ...                :
  + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +
  |                     Payload Data continued ...                |
  +---------------------------------------------------------------+
          
FIN:
1 bit

Indicates that this is the final fragment in a message. The first fragment MAY also be the final fragment.
RSV1, RSV2, RSV3:
1 bit each

MUST be 0 unless an extension is negotiated that defines meanings for non-zero values. If a nonzero value is received and none of the negotiated extensions defines the meaning of such a nonzero value, the receiving endpoint MUST Fail the WebSocket Connection.
Opcode:
4 bits

Defines the interpretation of the "Payload data". If an unknown opcode is received, the receiving endpoint MUST Fail the WebSocket Connection. The following values are defined.
  • %x0 denotes a continuation frame
  • %x1 denotes a text frame
  • %x2 denotes a binary frame
  • %x3-7 are reserved for further non-control frames
  • %x8 denotes a connection close
  • %x9 denotes a ping
  • %xA denotes a pong
  • %xB-F are reserved for further control frames
Mask:
1 bit

Defines whether the "Payload data" is masked. If set to 1, a masking key is present in masking-key, and this is used to unmask the "Payload data" as per kleinanzeigen berlin kostenlos kijiji gebrauchtes. All frames sent from client to server have this bit set to 1.
Payload length:
7 bits, 7+16 bits, or 7+64 bits

The length of the "Payload data", in bytes: if 0-125, that is the payload length. If 126, the following 2 bytes interpreted as a 16-bit unsigned integer are the payload length. If 127, the following 8 bytes interpreted as a 64-bit unsigned integer (the most significant bit MUST be 0) are the payload length. Multibyte length quantities are expressed in network byte order. Note that in all cases, the minimal number of bytes MUST be used to encode the length, for example, the length of a 124-byte-long string can't be encoded as the sequence 126, 0, 124. The payload length is the length of the "Extension data" + the length of the "Application data". The length of the "Extension data" may be zero, in which case the payload length is the length of the "Application data".
Masking-key:
0 or 4 bytes

All frames sent from the client to the server are masked by a 32‑bit value that is contained within the frame. This field is present if the mask bit is set to 1 and is absent if the mask bit is set to 0. See kleinanzeigen berlin kostenlos aufgeben for further information on client-to-server masking.
Payload data:
(x+y) bytes

The "Payload data" is defined as "Extension data" concatenated with "Application data".
Extension data:
x bytes

The "Extension data" is 0 bytes unless an extension has been negotiated. Any extension MUST specify the length of the "Extension data", or how that length may be calculated, and how the extension use MUST be negotiated during the opening handshake. If present, the "Extension data" is included in the total payload length.
Application data:
y bytes

Arbitrary "Application data", taking up the remainder of the frame after any "Extension data". The length of the "Application data" is equal to the payload length minus the length of the "Extension data".

partnervermittlung polnische frauen The base framing protocol is formally defined by the following ABNF [RFC5234]. It is important to note that the representation of this data is binary, not ASCII characters. As such, a field with a length of 1 bit that takes values %x0 / %x1 is represented as a single bit whose value is 0 or 1, not a full byte (octet) that stands for the characters "0" or "1" in the ASCII encoding. A field with a length of 4 bits with values between %x0-F again is represented by 4 bits, again NOT by an ASCII character or full byte (octet) with these values. [RFC5234] does not specify a character encoding: "Rules resolve into a string of terminal values, sometimes called characters. In ABNF, a character is merely a non-negative integer. In certain contexts, a specific mapping (encoding) of values into a character set (such as ASCII) will be specified." Here, the specified encoding is a binary encoding where each terminal value is encoded in the specified number of bits, which varies for each field.christliche singlebörse international

 ws-frame                = frame-fin           ; 1 bit in length
                           frame-rsv1          ; 1 bit in length
                           frame-rsv2          ; 1 bit in length
                           frame-rsv3          ; 1 bit in length
                           frame-opcode        ; 4 bits in length
                           frame-masked        ; 1 bit in length
                           frame-payload-length   ; either 7, 7+16, 
                                                  ; or 7+64 bits in 
                                                  ; length
                           [ frame-masking-key ]  ; 32 bits in length
                           frame-payload-data     ; n*8 bits in 
                                                  ; length, where 
                                                  ; n >= 0

 frame-fin               = %x0 ; more frames of this message follow
                         / %x1 ; final frame of this message
                               ; 1 bit in length

 frame-rsv1              = %x0 / %x1
                           ; 1 bit in length, MUST be 0 unless 
                           ; negotiated otherwise

 frame-rsv2              = %x0 / %x1
                           ; 1 bit in length, MUST be 0 unless 
                           ; negotiated otherwise

 frame-rsv3              = %x0 / %x1
                           ; 1 bit in length, MUST be 0 unless 
                           ; negotiated otherwise

 frame-opcode            = frame-opcode-non-control /
                           frame-opcode-control /
                           frame-opcode-cont

 frame-opcode-cont       = %x0 ; frame continuation

 frame-opcode-non-control= %x1 ; text frame
                         / %x2 ; binary frame
                         / %x3-7
                         ; 4 bits in length,
                         ; reserved for further non-control frames

 frame-opcode-control    = %x8 ; connection close
                         / %x9 ; ping
                         / %xA ; pong
                         / %xB-F ; reserved for further control 
                                 ; frames
                                 ; 4 bits in length

 frame-masked            = %x0
                         ; frame is not masked, no frame-masking-key
                         / %x1
                         ; frame is masked, frame-masking-key present
                         ; 1 bit in length

 frame-payload-length    = ( %x00-7D )
                         / ( %x7E frame-payload-length-16 )
                         / ( %x7F frame-payload-length-63 )
                         ; 7, 7+16, or 7+64 bits in length, 
                         ; respectively

 frame-payload-length-16 = %x0000-FFFF ; 16 bits in length

 frame-payload-length-63 = %x0000000000000000-7FFFFFFFFFFFFFFF
                         ; 64 bits in length

 frame-masking-key       = 4( %x00-FF )
                           ; present only if frame-masked is 1
                           ; 32 bits in length

 frame-payload-data      = (frame-masked-extension-data
                            frame-masked-application-data)
                         ; when frame-masked is 1
                           / (frame-unmasked-extension-data
                             frame-unmasked-application-data)
                         ; when frame-masked is 0

 frame-masked-extension-data     = *( %x00-FF )
                         ; reserved for future extensibility
                         ; n*8 bits in length, where n >= 0

 frame-masked-application-data   = *( %x00-FF )
                         ; n*8 bits in length, where n >= 0

 frame-unmasked-extension-data   = *( %x00-FF )
                         ; reserved for future extensibility
                         ; n*8 bits in length, where n >= 0

 frame-unmasked-application-data = *( %x00-FF )
                         ; n*8 bits in length, where n >= 0

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partnervermittlung polnische frauen kostenlos A masked frame MUST have the field frame-masked set to 1, as defined in partnersuche christ sucht christ.nette leute kennenlernen kostenlos ohne anmeldung

partnervermittlung polnische frauen de erfahrung The masking key is contained completely within the frame, as defined in partnervermittlung dresden as frame-masking-key. It is used to mask the "Payload data" defined in the same section as frame-payload-data, which includes "Extension data" and "Application data".partnervermittlung dresden kostenlos

christliche singles kostenlos The masking key is a 32-bit value chosen at random by the client. When preparing a masked frame, the client MUST pick a fresh masking key from the set of allowed 32-bit values. The masking key needs to be unpredictable; thus, the masking key MUST be derived from a strong source of entropy, and the masking key for a given frame MUST NOT make it simple for a server/proxy to predict the masking key for a subsequent frame. The unpredictability of the masking key is essential to prevent authors of malicious applications from selecting the bytes that appear on the wire. RFC 4086 [RFC4086] discusses what entails a suitable source of entropy for security-sensitive applications.partnervermittlung julie dresden

partnersuche in aschaffenburg The masking does not affect the length of the "Payload data". To convert masked data into unmasked data, or vice versa, the following algorithm is applied. The same algorithm applies regardless of the direction of the translation, e.g., the same steps are applied to mask the data as to unmask the data.partnervermittlung tunesien

frauen aus polen auf partnersuche Octet i of the transformed data ("transformed-octet-i") is the XOR of octet i of the original data ("original-octet-i") with octet at index i modulo 4 of the masking key ("masking-key-octet-j"):singlebörsen im vergleich

            
  j                   = i MOD 4
  transformed-octet-i = original-octet-i XOR masking-key-octet-j
            
          

russische frauen auf partnersuche The payload length, indicated in the framing as frame-payload-length, does NOT include the length of the masking key. It is the length of the "Payload data", e.g., the number of bytes following the masking key.reisepartner für island gesucht

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frauen auf partnersuche The primary purpose of fragmentation is to allow sending a message that is of unknown size when the message is started without having to buffer that message. If messages couldn't be fragmented, then an endpoint would have to buffer the entire message so its length could be counted before the first byte is sent. With fragmentation, a server or intermediary may choose a reasonable size buffer and, when the buffer is full, write a fragment to the network.singlebörse kostenlos nur für frauen

frauen ab 50 auf partnersuche A secondary use-case for fragmentation is for multiplexing, where it is not desirable for a large message on one logical channel to monopolize the output channel, so the multiplexing needs to be free to split the message into smaller fragments to better share the output channel. (Note that the multiplexing extension is not described in this document.)american dating in germany

singlebörse luxemburg Unless specified otherwise by an extension, frames have no semantic meaning. An intermediary might coalesce and/or split frames, if no extensions were negotiated by the client and the server or if some extensions were negotiated, but the intermediary understood all the extensions negotiated and knows how to coalesce and/or split frames in the presence of these extensions. One implication of this is that in absence of extensions, senders and receivers must not depend on the presence of specific frame boundaries.alternative partnervermittlung

singlebörse kostenlos luxemburg The following rules apply to fragmentation: partnervermittlung antoinette pforzheim

  • An unfragmented message consists of a single frame with the FIN bit set (alleinerziehende single väter kostenlos) and an opcode other than 0.
  • A fragmented message consists of a single frame with the FIN bit clear and an opcode other than 0, followed by zero or more frames with the FIN bit clear and the opcode set to 0, and terminated by a single frame with the FIN bit set and an opcode of 0. A fragmented message is conceptually equivalent to a single larger message whose payload is equal to the concatenation of the payloads of the fragments in order; however, in the presence of extensions, this may not hold true as the extension defines the interpretation of the "Extension data" present. For instance, "Extension data" may only be present at the beginning of the first fragment and apply to subsequent fragments, or there may be "Extension data" present in each of the fragments that applies only to that particular fragment. In the absence of "Extension data", the following example demonstrates how fragmentation works.

    EXAMPLE: For a text message sent as three fragments, the first fragment would have an opcode of 0x1 and a FIN bit clear, the second fragment would have an opcode of 0x0 and a FIN bit clear, and the third fragment would have an opcode of 0x0 and a FIN bit that is set.
  • Control frames (see partnersuche kostenpflichtig) MAY be injected in the middle of a fragmented message. Control frames themselves MUST NOT be fragmented.
  • Message fragments MUST be delivered to the recipient in the order sent by the sender.
  • The fragments of one message MUST NOT be interleaved between the fragments of another message unless an extension has been negotiated that can interpret the interleaving.
  • An endpoint MUST be capable of handling control frames in the middle of a fragmented message.
  • A sender MAY create fragments of any size for non-control messages.
  • Clients and servers MUST support receiving both fragmented and unfragmented messages.
  • As control frames cannot be fragmented, an intermediary MUST NOT attempt to change the fragmentation of a control frame.
  • An intermediary MUST NOT change the fragmentation of a message if any reserved bit values are used and the meaning of these values is not known to the intermediary.
  • An intermediary MUST NOT change the fragmentation of any message in the context of a connection where extensions have been negotiated and the intermediary is not aware of the semantics of the negotiated extensions. Similarly, an intermediary that didn't see the WebSocket handshake (and wasn't notified about its content) that resulted in a WebSocket connection MUST NOT change the fragmentation of any message of such connection.
  • As a consequence of these rules, all fragments of a message are of the same type, as set by the first fragment's opcode. Since control frames cannot be fragmented, the type for all fragments in a message MUST be either text, binary, or one of the reserved opcodes.

gratis singlebörse luxemburg NOTE: If control frames could not be interjected, the latency of a ping, for example, would be very long if behind a large message. Hence, the requirement of handling control frames in the middle of a fragmented message.partnersuche kostenfrei

sim dating game online free IMPLEMENTATION NOTE: In the absence of any extension, a receiver doesn't have to buffer the whole frame in order to process it. For example, if a streaming API is used, a part of a frame can be delivered to the application. However, note that this assumption might not hold true for all future WebSocket extensions.partnersuche kostenlos ohne registrierung

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partnersuche goslar umgebung Control frames are identified by opcodes where the most significant bit of the opcode is 1. Currently defined opcodes for control frames include 0x8 (Close), 0x9 (Ping), and 0xA (Pong). Opcodes 0xB-0xF are reserved for further control frames yet to be defined.kontaktbörse kostenlos österreich

partnersuche goslar Control frames are used to communicate state about the WebSocket. Control frames can be interjected in the middle of a fragmented message.partnersuche sz online

speed dating in frankfurt am main All control frames MUST have a payload length of 125 bytes or less and MUST NOT be fragmented.singles international free

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dating in frankfurt am main The Close frame contains an opcode of 0x8.singles international

single cafe frankfurt am main The Close frame MAY contain a body (the "Application data" portion of the frame) that indicates a reason for closing, such as an endpoint shutting down, an endpoint having received a frame too large, or an endpoint having received a frame that does not conform to the format expected by the endpoint. If there is a body, the first two bytes of the body MUST be a 2-byte unsigned integer (in network byte order) representing a status code with value /code/ defined in singlebörse für mollige ch. Following the 2-byte integer, the body MAY contain UTF‑8-encoded data with value /reason/, the interpretation of which is not defined by this specification. This data is not necessarily human readable but may be useful for debugging or passing information relevant to the script that opened the connection. As the data is not guaranteed to be human readable, clients MUST NOT show it to end users.singlebörsen für mollige

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single wohnung in frankfurt am main The application MUST NOT send any more data frames after sending a Close frame.partnersuche für alleinerziehende mütter kostenlos

singles chat frankfurt am main If an endpoint receives a Close frame and did not previously send a Close frame, the endpoint MUST send a Close frame in response. (When sending a Close frame in response, the endpoint typically echos the status code it received.) It SHOULD do so as soon as practical. An endpoint MAY delay sending a Close frame until its current message is sent (for instance, if the majority of a fragmented message is already sent, an endpoint MAY send the remaining fragments before sending a Close frame). However, there is no guarantee that the endpoint that has already sent a Close frame will continue to process data.totally free dating site in germany

partnervermittlung rumänien antoinette After both sending and receiving a Close message, an endpoint considers the WebSocket connection closed and MUST close the underlying TCP connection. The server MUST close the underlying TCP connection immediately; the client SHOULD wait for the server to close the connection but MAY close the connection at any time after sending and receiving a Close message, e.g., if it has not received a TCP Close from the server in a reasonable time period.free christian dating site in germany

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partnervermittlung helga test The Ping frame contains an opcode of 0x9.partnervermittlung griechenland

partnervermittlung für unter 18 jährige A Ping frame MAY include "Application data".studenten singlebörse

partnervermittlung mainaschaff Upon receipt of a Ping frame, an endpoint MUST send a Pong frame in response, unless it already received a Close frame. It SHOULD respond with Pong frame as soon as is practical. Pong frames are discussed in studenten singlebörse innsbruck.studenten singlebörse wien

singlebörse alleinerziehende schweiz An endpoint MAY send a Ping frame any time after the connection is established and before the connection is closed.studenten singlebörse österreich

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singlebörse für alleinerziehende gratis The Pong frame contains an opcode of 0xA.dating site berlin

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singlebörse alleinerziehende mama A Pong frame sent in response to a Ping frame must have identical "Application data" as found in the message body of the Ping frame being replied to.partnervermittlung 50+ test

singlebörse alleinerziehende singles If an endpoint receives a Ping frame and has not yet sent Pong frame(s) in response to previous Ping frame(s), the endpoint MAY elect to send a Pong frame for only the most recently processed Ping frame.partnervermittlung ü 50

partnervermittlung bochum adrian A Pong frame MAY be sent unsolicited. This serves as a unidirectional heartbeat. A response to an unsolicited Pong frame is not expected.partnervermittlung 50 senioren

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fortuna partnervermittlung bochum kosten Data frames (e.g., non-control frames) are identified by opcodes where the most significant bit of the opcode is 0. Currently defined opcodes for data frames include 0x1 (Text), 0x2 (Binary). Opcodes 0x3-0x7 are reserved for further non-control frames yet to be defined.kostenlos immobilien inserieren kroatien

liebesbote partnervermittlung bochum Data frames carry application-layer and/or extension-layer data. The opcode determines the interpretation of the data: jüdische partnervermittlung schweiz

Text


The "Payload data" is text data encoded as UTF-8. Note that a particular text frame might include a partial UTF-8 sequence; however, the whole message MUST contain valid UTF-8. Invalid UTF-8 in reassembled messages is handled as described in partnersuche ch kostenlos.
Binary


The "Payload data" is arbitrary binary data whose interpretation is solely up to the application layer.

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  • A single-frame unmasked text message
    • 0x81 0x05 0x48 0x65 0x6c 0x6c 0x6f (contains "Hello")
  • A single-frame masked text message
    • 0x81 0x85 0x37 0xfa 0x21 0x3d 0x7f 0x9f 0x4d 0x51 0x58 (contains "Hello")
  • A fragmented unmasked text message
    • 0x01 0x03 0x48 0x65 0x6c (contains "Hel")
    • 0x80 0x02 0x6c 0x6f (contains "lo")
  • Unmasked Ping request and masked Ping response
    • 0x89 0x05 0x48 0x65 0x6c 0x6c 0x6f (contains a body of "Hello", but the contents of the body are arbitrary)
    • 0x8a 0x85 0x37 0xfa 0x21 0x3d 0x7f 0x9f 0x4d 0x51 0x58 (contains a body of "Hello", matching the body of the ping)
  • 256 bytes binary message in a single unmasked frame
    • 0x82 0x7E 0x0100 [256 bytes of binary data]
  • 64KiB binary message in a single unmasked frame
    • 0x82 0x7F 0x0000000000010000 [65536 bytes of binary data]

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fortuna partnervermittlung bochum erfahrungsberichte The protocol is designed to allow for extensions, which will add capabilities to the base protocol. The endpoints of a connection MUST negotiate the use of any extensions during the opening handshake. This specification provides opcodes 0x3 through 0x7 and 0xB through 0xF, the "Extension data" field, and the frame-rsv1, frame-rsv2, and frame-rsv3 bits of the frame header for use by extensions. The negotiation of extensions is discussed in further detail in best free online dating sites in germany. Below are some anticipated uses of extensions. This list is neither complete nor prescriptive. 100 free online dating sites in germany

  • "Extension data" may be placed in the "Payload data" before the "Application data".
  • Reserved bits can be allocated for per-frame needs.
  • Reserved opcode values can be defined.
  • Reserved bits can be allocated to the opcode field if more opcode values are needed.
  • A reserved bit or an "extension" opcode can be defined that allocates additional bits out of the "Payload data" to define larger opcodes or more per-frame bits.

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partnervermittlung nigeria To Send a WebSocket Message comprising of /data/ over a WebSocket connection, an endpoint MUST perform the following steps. partnervermittlung wien akademiker

  1. The endpoint MUST ensure the WebSocket connection is in the OPEN state (cf. Sections partnersuche tirol gratis and partnersuche für single mit kind.) If at any point the state of the WebSocket connection changes, the endpoint MUST abort the following steps.
  2. An endpoint MUST encapsulate the /data/ in a WebSocket frame as defined in partnervermittlung ukraine natalya kosten. If the data to be sent is large or if the data is not available in its entirety at the point the endpoint wishes to begin sending the data, the endpoint MAY alternately encapsulate the data in a series of frames as defined in partnervermittlung natalya.
  3. The opcode (frame-opcode) of the first frame containing the data MUST be set to the appropriate value from hotmail.de neu anmelden kostenlos for data that is to be interpreted by the recipient as text or binary data.
  4. The FIN bit (frame-fin) of the last frame containing the data MUST be set to 1 as defined in ted how i hack online dating.
  5. If the data is being sent by the client, the frame(s) MUST be masked as defined in best singles bars in frankfurt.
  6. If any extensions (singlebörse für frauen mit kinderwunsch) have been negotiated for the WebSocket connection, additional considerations may apply as per the definition of those extensions.
  7. The frame(s) that have been formed MUST be transmitted over the underlying network connection.

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partnervermittlung mahler wiesbaden To receive WebSocket data, an endpoint listens on the underlying network connection. Incoming data MUST be parsed as WebSocket frames as defined in singlebörse für große frauen. If a control frame (singlebörse für frauen gratis) is received, the frame MUST be handled as defined by singlebörse für ältere frauen. Upon receiving a data frame (partnervermittlung ernestine gmbh lindau), the endpoint MUST note the /type/ of the data as defined by the opcode (frame-opcode) from partnersuche für behinderte menschen kostenlos. The "Application data" from this frame is defined as the /data/ of the message. If the frame comprises an unfragmented message (kostenlos wohnung inserieren wien), it is said that A WebSocket Message Has Been Received with type /type/ and data /data/. If the frame is part of a fragmented message, the "Application data" of the subsequent data frames is concatenated to form the /data/. When the last fragment is received as indicated by the FIN bit (frame-fin), it is said that A WebSocket Message Has Been Received with data /data/ (comprised of the concatenation of the "Application data" of the fragments) and type /type/ (noted from the first frame of the fragmented message). Subsequent data frames MUST be interpreted as belonging to a new WebSocket message.kostenlos wohnung inserieren frankfurt

partnervermittlung agentur wiesbaden Extensions (kostenlos wohnung inserieren münchen) MAY change the semantics of how data is read, specifically including what comprises a message boundary. Extensions, in addition to adding "Extension data" before the "Application data" in a payload, MAY also modify the "Application data" (such as by compressing it).kostenlos inserat wohnung

partnervermittlung wiesbaden exklusiver partnerkreis A server MUST remove masking for data frames received from a client as described in kostenlos inserieren wohnung schweiz.kontaktbörse internet kostenlos

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wie viele singles in der schweiz To Close the WebSocket Connection, an endpoint closes the underlying TCP connection. An endpoint SHOULD use a method that cleanly closes the TCP connection, as well as the TLS session, if applicable, discarding any trailing bytes that may have been received. An endpoint MAY close the connection via any means available when necessary, such as when under attack.facebook partnersuche österreich

japanische singles in der schweiz The underlying TCP connection, in most normal cases, SHOULD be closed first by the server, so that it holds the TIME_WAIT state and not the client (as this would prevent it from re-opening the connection for 2 maximum segment lifetimes (2MSL), while there is no corresponding server impact as a TIME_WAIT connection is immediately reopened upon a new SYN with a higher seq number). In abnormal cases (such as not having received a TCP Close from the server after a reasonable amount of time) a client MAY initiate the TCP Close. As such, when a server is instructed to Close the WebSocket Connection it SHOULD initiate a TCP Close immediately, and when a client is instructed to do the same, it SHOULD wait for a TCP Close from the server.facebook partnersuche kostenlos

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partnervermittlung ulm To Start the WebSocket Closing Handshake with a status code (reisepartner gesucht australien 2013) /code/ and an optional close reason (reisepartner finden facebook) /reason/, an endpoint MUST send a Close control frame, as described in german muslim dating site, whose status code is set to /code/ and whose close reason is set to /reason/. Once an endpoint has both sent and received a Close control frame, that endpoint SHOULD Close the WebSocket Connection as defined in erfolg internet partnerbörsen.internet partnerbörsen vergleich

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partnerbörsen für hamburg When the underlying TCP connection is closed, it is said that The WebSocket Connection is Closed and that the WebSocket connection is in the CLOSED state. If the TCP connection was closed after the WebSocket closing handshake was completed, the WebSocket connection is said to have been closed cleanly.german dating site for free

partnerbörse hamburg kostenlos If the WebSocket connection could not be established, it is also said that The WebSocket Connection is Closed, but not cleanly.partnersuche vergleich stiftung warentest

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partnersuche brasilien As defined in Sections kinderchat kostenlos ab 12 and kinderchat kostenlos, a Close control frame may contain a status code indicating a reason for closure. A closing of the WebSocket connection may be initiated by either endpoint, potentially simultaneously. The WebSocket Connection Close Code is defined as the status code (cooler kinderchat kostenlos) contained in the first Close control frame received by the application implementing this protocol. If this Close control frame contains no status code, The WebSocket Connection Close Code is considered to be 1005. If The WebSocket Connection is Closed and no Close control frame was received by the endpoint (such as could occur if the underlying transport connection is lost), The WebSocket Connection Close Code is considered to be 1006.sweden dating site in english

fischkopf partnersuche NOTE: Two endpoints may not agree on the value of The WebSocket Connection Close Code. As an example, if the remote endpoint sent a Close frame but the local application has not yet read the data containing the Close frame from its socket's receive buffer, and the local application independently decided to close the connection and send a Close frame, both endpoints will have sent and received a Close frame and will not send further Close frames. Each endpoint will see the status code sent by the other end as The WebSocket Connection Close Code. As such, it is possible that the two endpoints may not agree on the value of The WebSocket Connection Close Code in the case that both endpoints Start the WebSocket Closing Handshake independently and at roughly the same time.partnervermittlung für afrikanische frauen

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100 free online dating uk Endpoints MAY use the following pre-defined status codes when sending a Close frame. die beste singlebörse österreich

1000


1000 indicates a normal closure, meaning that the purpose for which the connection was established has been fulfilled.
1001


1001 indicates that an endpoint is "going away", such as a server going down or a browser having navigated away from a page.
1002


1002 indicates that an endpoint is terminating the connection due to a protocol error.
1003


1003 indicates that an endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).
1004


Reserved. The specific meaning might be defined in the future.
1005


1005 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that no status code was actually present.
1006


1006 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed abnormally, e.g., without sending or receiving a Close control frame.
1007


1007 indicates that an endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 [RFC3629] data within a text message).
1008


1008 indicates that an endpoint is terminating the connection because it has received a message that violates its policy. This is a generic status code that can be returned when there is no other more suitable status code (e.g., 1003 or 1009) or if there is a need to hide specific details about the policy.
1009


1009 indicates that an endpoint is terminating the connection because it has received a message that is too big for it to process.
1010


1010 indicates that an endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake. The list of extensions that are needed SHOULD appear in the /reason/ part of the Close frame. Note that this status code is not used by the server, because it can fail the WebSocket handshake instead.
1011


1011 indicates that a server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.
1015


1015 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed due to a failure to perform a TLS handshake (e.g., the server certificate can't be verified).

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0-999


Status codes in the range 0-999 are not used.
1000-2999


Status codes in the range 1000-2999 are reserved for definition by this protocol, its future revisions, and extensions specified in a permanent and readily available public specification.
3000-3999


Status codes in the range 3000-3999 are reserved for use by libraries, frameworks, and applications. These status codes are registered directly with IANA. The interpretation of these codes is undefined by this protocol.
4000-4999


Status codes in the range 4000-4999 are reserved for private use and thus can't be registered. Such codes can be used by prior agreements between WebSocket applications. The interpretation of these codes is undefined by this protocol.

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single parent travelling with child uk A client requests extensions by including a |Sec-WebSocket-Extensions| header field, which follows the normal rules for HTTP header fields (see [RFC2616], Section 4.2) and the value of the header field is defined by the following ABNF [RFC2616]. Note that this section is using ABNF syntax/rules from [RFC2616], including the "implied *LWS rule". If a value is received by either the client or the server during negotiation that does not conform to the ABNF below, the recipient of such malformed data MUST immediately Fail the WebSocket Connection.wieviel prozent singles in deutschland

      Sec-WebSocket-Extensions = extension-list
      extension-list = 1#extension
      extension = extension-token *( ";" extension-param )
      extension-token = registered-token
      registered-token = token
      extension-param = token [ "=" (token | quoted-string) ]
          ;When using the quoted-string syntax variant, the value
          ;after quoted-string unescaping MUST conform to the
          ;'token' ABNF.
          

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      Sec-WebSocket-Extensions: foo
      Sec-WebSocket-Extensions: bar; baz=2
          

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      Sec-WebSocket-Extensions: foo, bar; baz=2
          

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      Sec-WebSocket-Extensions: deflate-stream
      Sec-WebSocket-Extensions: mux; max-channels=4; flow-control,
       deflate-stream
      Sec-WebSocket-Extensions: private-extension
          

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free dating websites switzerland A |ws| URI identifies a WebSocket server and resource name. 100 free germany dating site

URI scheme name

ws
Status

Permanent
URI scheme syntax

Using the ABNF [RFC5234] syntax and ABNF terminals from the URI specification [RFC3986]: 100 free dating sites no credit card needed uk
        "ws:" "//" authority path-abempty [ "?" query ]


The <path-abempty> and <query> [RFC3986] components form the resource name sent to the server to identify the kind of service desired. Other components have the meanings described in [RFC3986].
URI scheme semantics

The only operation for this scheme is to open a connection using the WebSocket Protocol.
Encoding considerations

Characters in the host component that are excluded by the syntax defined above MUST be converted from Unicode to ASCII as specified in [RFC3987] or its replacement. For the purposes of scheme-based normalization, Internationalized Domain Name (IDN) forms of the host component and their conversions to punycode are considered equivalent (see Section 5.3.3 of [RFC3987]).

Characters in other components that are excluded by the syntax defined above MUST be converted from Unicode to ASCII by first encoding the characters as UTF-8 and then replacing the corresponding bytes using their percent-encoded form as defined in the URI [RFC3986] and Internationalized Resource Identifier (IRI) [RFC3987] specifications.
Applications/protocols that use this URI scheme name

WebSocket Protocol
Interoperability considerations

Use of WebSocket requires use of HTTP version 1.1 or higher.
Security considerations

See "Security Considerations" section.
Contact

HYBI WG <[email protected]>
Author/Change controller

IETF <[email protected]>
References

RFC 6455

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URI scheme name

wss
Status

Permanent
URI scheme syntax

Using the ABNF [RFC5234] syntax and ABNF terminals from the URI specification [RFC3986]: mahjong 3d kostenlos online spielen ohne anmeldung
        "wss:" "//" authority path-abempty [ "?" query ]


The <path-abempty> and <query> components form the resource name sent to the server to identify the kind of service desired. Other components have the meanings described in [RFC3986].
URI scheme semantics

The only operation for this scheme is to open a connection using the WebSocket Protocol, encrypted using TLS.
Encoding considerations

Characters in the host component that are excluded by the syntax defined above MUST be converted from Unicode to ASCII as specified in [RFC3987] or its replacement. For the purposes of scheme-based normalization IDN forms of the host component and their conversions to punycode are considered equivalent (see Section 5.3.3 of [RFC3987]).

Characters in other components that are excluded by the syntax defined above MUST be converted from Unicode to ASCII by first encoding the characters as UTF-8 and then replacing the corresponding bytes using their percent-encoded form as defined in the URI [RFC3986] and IRI [RFC3987] specifications.
Applications/protocols that use this URI scheme name

WebSocket Protocol over TLS
Interoperability considerations

Use of WebSocket requires use of HTTP version 1.1 or higher.
Security considerations

See "Security Considerations" section.
Contact

HYBI WG <[email protected]>
Author/Change controller

IETF <[email protected]>
References

RFC 6455

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Name of token

WebSocket
Author/Change controller

IETF <[email protected]>
Contact

HYBI <[email protected]>
References

RFC 6455

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Header field name

Sec-WebSocket-Key
Applicable protocol

http
Status

standard
Author/Change controller

IETF
Specification document(s)

RFC 6455
Related information

This header field is only used for WebSocket opening handshake.

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Header field name

Sec-WebSocket-Extensions
Applicable protocol

http
Status

standard
Author/Change controller

IETF
Specification document(s)

RFC 6455
Related information

This header field is only used for WebSocket opening handshake.

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Header field name

Sec-WebSocket-Accept
Applicable protocol

http
Status

standard
Author/Change controller

IETF
Specification document(s)

RFC 6455
Related information

This header field is only used for the WebSocket opening handshake.

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Header field name

Sec-WebSocket-Protocol
Applicable protocol

http
Status

standard
Author/Change controller

IETF
Specification document(s)

RFC 6455
Related information

This header field is only used for the WebSocket opening handshake.

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Header field name

Sec-WebSocket-Version
Applicable protocol

http
Status

standard
Author/Change controller

IETF
Specification document(s)

RFC 6455
Related information

This header field is only used for the WebSocket opening handshake.

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Extension Identifier

The identifier of the extension, as will be used in the |Sec-WebSocket-Extensions| header field registered in partnersuche ohne singlebörse of this specification. The value must conform to the requirements for an extension-token as defined in partnervermittlung 50plus of this specification.
Extension Common Name

The name of the extension, as the extension is generally referred to.
Extension Definition

A reference to the document in which the extension being used with the WebSocket Protocol is defined.
Known Incompatible Extensions

A list of extension identifiers with which this extension is known to be incompatible.

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Subprotocol Identifier

The identifier of the subprotocol, as will be used in the |Sec-WebSocket-Protocol| header field registered in best online dating sites berlin of this specification. The value must conform to the requirements given in item 10 of gratis dating seiten schweiz of this specification -- namely, the value must be a token as defined by RFC 2616 [RFC2616].
Subprotocol Common Name

The name of the subprotocol, as the subprotocol is generally referred to.
Subprotocol Definition

A reference to the document in which the subprotocol being used with the WebSocket Protocol is defined.

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Version Number

The version number to be used in the |Sec-WebSocket-Version| is specified in 100 free dating site in switzerland of this specification. The value must be a non-negative integer in the range between 0 and 255 (inclusive).
Reference

The RFC requesting a new version number or a draft name with version number (see below).
Status

Either "Interim" or "Standard". See below for description.

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+--------+-----------------------------------------+----------+
|Version |                Reference                |  Status  |
| Number |                                         |          |
+--------+-----------------------------------------+----------+    
| 0      + draft-ietf-hybi-thewebsocketprotocol-00 | Interim  |
+--------+-----------------------------------------+----------+
| 1      + draft-ietf-hybi-thewebsocketprotocol-01 | Interim  |
+--------+-----------------------------------------+----------+
| 2      + draft-ietf-hybi-thewebsocketprotocol-02 | Interim  |
+--------+-----------------------------------------+----------+
| 3      + draft-ietf-hybi-thewebsocketprotocol-03 | Interim  |
+--------+-----------------------------------------+----------+
| 4      + draft-ietf-hybi-thewebsocketprotocol-04 | Interim  |
+--------+-----------------------------------------+----------+
| 5      + draft-ietf-hybi-thewebsocketprotocol-05 | Interim  |
+--------+-----------------------------------------+----------+
| 6      + draft-ietf-hybi-thewebsocketprotocol-06 | Interim  |
+--------+-----------------------------------------+----------+
| 7      + draft-ietf-hybi-thewebsocketprotocol-07 | Interim  |
+--------+-----------------------------------------+----------+
| 8      + draft-ietf-hybi-thewebsocketprotocol-08 | Interim  |
+--------+-----------------------------------------+----------+
| 9      +                Reserved                 |          |
+--------+-----------------------------------------+----------+
| 10     +                Reserved                 |          |
+--------+-----------------------------------------+----------+
| 11     +                Reserved                 |          |
+--------+-----------------------------------------+----------+
| 12     +                Reserved                 |          |
+--------+-----------------------------------------+----------+
| 13     +                RFC 6455                 | Standard |
+--------+-----------------------------------------+----------+

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Status Code

The Status Code denotes a reason for a WebSocket connection closure as per skat kostenlos ohne anmeldung online spielen of this document. The status code is an integer number between 1000 and 4999 (inclusive).
Meaning

The meaning of the status code. Each status code has to have a unique meaning.
Contact

A contact for the entity reserving the status code.
Reference

The stable document requesting the status codes and defining their meaning. This is required for status codes in the range 1000-2999 and recommended for status codes in the range 3000-3999.

top 10 single charts februar 2015 WebSocket Close Code Numbers are subject to different registration requirements depending on their range. Requests for status codes for use by this protocol and its subsequent versions or extensions are subject to any one of the "Standards Action", "Specification Required" (which implies "Designated Expert"), or "IESG Review" IANA registration policies and should be granted in the range 1000-2999. Requests for status codes for use by libraries, frameworks, and applications are subject to the "First Come First Served" IANA registration policy and should be granted in the range 3000-3999. The range of status codes from 4000-4999 is designated for Private Use.  Requests should indicate whether they are requesting status codes for use by the WebSocket Protocol (or a future version of the protocol), by extensions, or by libraries/frameworks/applications.kartenspiele kostenlos ohne anmeldung online spielen

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  |Status Code | Meaning         | Contact       | Reference |
 -+------------+-----------------+---------------+-----------|
  | 1000       | Normal Closure  | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1001       | Going Away      | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1002       | Protocol error  | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1003       | Unsupported Data| [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1004       | ---Reserved---- | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1005       | No Status Rcvd  | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1006       | Abnormal Closure| [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1007       | Invalid frame   | [email protected] | RFC 6455  |
  |            | payload data    |               |           |
 -+------------+-----------------+---------------+-----------|
  | 1008       | Policy Violation| [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1009       | Message Too Big | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1010       | Mandatory Ext.  | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|
  | 1011       | Internal Server | [email protected] | RFC 6455  |
  |            | Error           |               |           |
 -+------------+-----------------+---------------+-----------|
  | 1015       | TLS handshake   | [email protected] | RFC 6455  |
 -+------------+-----------------+---------------+-----------|

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Opcode

The opcode denotes the frame type of the WebSocket frame, as defined in immobilien kostenlos inserieren schweiz. The opcode is an integer number between 0 and 15, inclusive.
Meaning

The meaning of the opcode value.
Reference

The specification requesting the opcode.

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  |Opcode  | Meaning                             | Reference |
 -+--------+-------------------------------------+-----------|
  | 0      | Continuation Frame                  | RFC 6455  |
 -+--------+-------------------------------------+-----------|
  | 1      | Text Frame                          | RFC 6455  |
 -+--------+-------------------------------------+-----------|
  | 2      | Binary Frame                        | RFC 6455  |
 -+--------+-------------------------------------+-----------|
  | 8      | Connection Close Frame              | RFC 6455  |
 -+--------+-------------------------------------+-----------|
  | 9      | Ping Frame                          | RFC 6455  |
 -+--------+-------------------------------------+-----------|
  | 10     | Pong Frame                          | RFC 6455  |
 -+--------+-------------------------------------+-----------|

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online dating profile writing examples References

online dating profile example Normative References

[ANSI.X3-4.1986]
American National Standards Institute, “Coded Character Set - 7-bit American Standard Code for Information Interchange”, ANSI X3.4, 1986.
[FIPS.180-3]
National Institute of Standards and Technology, “online dating profile writing service reviews”, FIPS PUB 180-3, October 2008, <online dating profile writing service australia>.
[RFC1928]
online dating profile writing tips, Ganis, M., Lee, Y., Kuris, R., Koblas, D., and L. Jones, “partnersuche 50plus kostenlos”, RFC 1928, March 1996.
[RFC2119]
finja singlebörse bewertung, “kostenlos skype anmelden pc”, BCP 14, RFC 2119, March 1997.
[RFC2616]
wie viele singles leben in deutschland 2013, single charts deutschland august 2013, aktuelle single charts deutschland 2013, single charts deutschland november 2013, single charts germany 2013, wieviel singles in deutschland, and wie viele singles in deutschland 2014, “speed dating watch online free”, RFC 2616, June 1999.
[RFC2817]
Khare, R. and S. Lawrence, “bejeweled 5 kostenlos spielen ohne anmeldung”, RFC 2817, May 2000.
[RFC2818]
Rescorla, E., “bejeweled twist kostenlos spielen ohne anmeldung”, RFC 2818, May 2000.
[RFC3629]
Yergeau, F., “bejeweled blitz kostenlos spielen ohne anmeldung”, STD 63, RFC 3629, November 2003.
[RFC3864]
Klyne, G., Nottingham, M., and J. Mogul, “christliche partnersuche akademiker”, BCP 90, RFC 3864, September 2004.
[RFC3986]
best germany free dating site, german dating free, and german dating free site, “germany free dating websites”, STD 66, RFC 3986, January 2005.
[RFC3987]
Duerst, M. and M. Suignard, “german free dating websites”, RFC 3987, January 2005.
[RFC4086]
Eastlake, D., Schiller, J., and S. Crocker, “top single charts 2013 deutschland”, BCP 106, RFC 4086, June 2005.
[RFC4648]
Josefsson, S., “aktuelle single charts deutschland 2012”, RFC 4648, October 2006.
[RFC5226]
Narten, T. and H. Alvestrand, “single charts deutschland dezember 2012”, BCP 26, RFC 5226, May 2008.
[RFC5234]
Crocker, D. and P. Overell, “single charts germany 2012”, STD 68, RFC 5234, January 2008.
[RFC5246]
Dierks, T. and E. Rescorla, “top 100 single charts deutschland januar 2015”, RFC 5246, August 2008.
[RFC6066]
Eastlake, D., “single charts 2015 deutschland top 100”, RFC 6066, January 2011.
[RFC6454]
Barth, A., “top 10 single charts deutschland 2015”, RFC 6454, December 2011.

single charts deutschland februar 2014 Informative References

[RFC4122]
single charts deutschland juli 2014, single charts deutschland 2014 top 100, and single charts germany 2014, “kinderchat ab 10 jahren kostenlos”, RFC 4122, July 2005.
[RFC4270]
Hoffman, P. and B. Schneier, “reisepartner australien work and travel 2015”, RFC 4270, November 2005.
[RFC5321]
Klensin, J., “partnervermittlung schweiz ohne anmeldung”, RFC 5321, October 2008.
[RFC6202]
Loreto, S., Saint-Andre, P., Salsano, S., and G. Wilkins, “russische frauen in deutschland kostenlos”, RFC 6202, April 2011.
[RFC6265]
Barth, A., “top 100 single charts 2012 deutschland”, RFC 6265, April 2011.
[TALKING]
Huang, L-S., Chen, E., Barth, A., Rescorla, E., and C. Jackson, “partnervermittlung exklusiv schweiz”, 2010, <partnervermittlung exklusiv>.
[W3C.REC-wsc-ui-20100812]
Roessler, T. and A. Saldhana, “gratis singlebörsen test”, World Wide Web Consortium Recommendation REC-wsc-ui-20100812, August 2010, <gratis singlebörse finya>.
Latest version available at <ratgeber partnersuche internet>.
[WSAPI]
Hickson, I., “ratgeber für partnersuche”, W3C Working Draft WD-websockets-20110929, September 2011, <ratgeber partnersuche>.
Latest version available at <die beste gratis singlebörse>.
[XMLHttpRequest]
van Kesteren, A., Ed., “singlebörse gratis ohne registrieren”, W3C Candidate Recommendation CR-XMLHttpRequest-20100803, August 2010, <gratis singlebörse ohne registrierung>.
Latest version available at <singlebörse kostenlos nrw ohne anmeldung>.

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