HTTP (HyperText Transfer Protocol) - NTU.
The Range HTTP request header indicates the part of a document that the server should return. Several parts can be requested with one Range header at once, and the server may send back these ranges in a multipart document. If the server sends back ranges, it uses the 206 Partial Content for the response.
The If-Range HTTP request header makes a range request conditional: if the condition is fulfilled, the range request will be issued and the server sends back a 206 Partial Content answer with the appropriate body. If the condition is not fulfilled, the full resource is sent back, with a 200 OK status.
Accept-Ranges is part of the ranges system. The ranges system lets the client request only part of a file instead of having to download the whole file. For example if a client only needs the last 100 bytes of a 10M file it can request the server only send data from offset 10485660 to 10485760.
The Content-Range response HTTP header indicates where in a full body message a partial message belongs. The unit in which ranges are specified. This is usually bytes. An integer in the given unit indicating the beginning of the request range. An integer in the given unit indicating the end of the requested range.
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The HttpWebRequest.AddRange method adds a byte range header to the request. If range is positive, the range parameter specifies the starting point of the range. The server should start sending data from the range parameter specified to the end of the data in the HTTP entity.
HTTP retrieval requests using conditional or unconditional GET methods MAY request one or more sub-ranges of the entity, instead of the entire entity, using the Range request header, which applies to the entity returned as the result of the request.
When an HTTP message includes the content of a single range (for example, a response to a request for a single range, or to a request for a set of ranges that overlap without any holes), this content is transmitted with a Content-Range header, and a Content-Length header showing the number of bytes actually transferred.
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Photograph your local culture, help Wikipedia and win! HTTP header fields are components of the header section of request and response messages in the Hypertext Transfer Protocol (HTTP). They define the operating parameters of an HTTP transaction. The header fields are transmitted after the request line (in case of a request HTTP message) or.
The content-range header is used as a response header indicating the range of bytes being returned following a request with a Range header. Additionally, it is used as a request header when resuming an interrupted upload, either as a request to find the current position of the upload prior to interruption or as an indicator of the starting point of the remaining chunk to be uploaded.
