On 12/13/06, Sumit Chawla <[EMAIL PROTECTED]> wrote:
GET is something already implelemnted by standard. If you want to implement partial downloading ( packet by packet) than you need to design it at both ends .
Which standard are you talking about? It's clearly not the RFC standard which I linked to and quoted from., which allows GET to request partial downloads. ie a client component and a server component which caters to these types of
requests. So knowing abt weather the Server allows download partial files is important. On 12/13/06, Indika Bandara <[EMAIL PROTECTED] > wrote: > > thank you PJH, > > if a http proxy prevents downloads of size larger than, say 10MB is it > possible to use this method to download files partially. > > when, > "GET www.abc.com/file.zip" > sent by client, server replies with the size. so is it this field that > the proxy reads and prevents the download from proceeding?(i'm > particularly asking about a squid http proxy) > > if thats true then there is no point in trying to write a client to do > partial-GET isn't it? > > > > --- In [email protected], "Paul Herring" <[EMAIL PROTECTED]> wrote: > > > > On 12/12/06, Indika Bandara <[EMAIL PROTECTED]> wrote: > > --- In [email protected], "Paul Herring" <pauljherring@> wrote: > > > > On 12/11/06, Indika Bandara <indikabandara19@> wrote: > > > > > hello, > > > > > > > > > > sorry if this is a wrong question in the wrong place. since many > > > > > knowelegable persons are in this forum thought of askin this > > > > > (programmers are supposed to know every thing right?) > > > > > > > > > > > > > > > How do the web clients which download files by parts work?(e.g > > > > > prozilla, download accelerator-DAP etc) > > > > > > > > Most downloaders (IE, Mozilla e.g.) download from the site using > one > > > > connection, and request all bytes from 0 to <length of file>. > What the > > > > clients you're asking about do is make more than one connection > and > > > > ask for sub-portions of the file on each connection. > > > > > > how is is actually implemented? > > > a request is normally like > > > > > > GET www.abc.com/file.zip > > > > > > isn't it? so how can one request portions of a file? > > > > > > http://www.ietf.org/rfc/rfc2616.txt > > > > The semantics of the GET method change to a "partial GET" if the > > request message includes a Range header field. A partial GET > requests > > that only part of the entity be transferred, as described in > section > > 14.35. The partial GET method is intended to reduce unnecessary > > network usage by allowing partially-retrieved entities to be > > completed without transferring data already held by the client. >
-- PJH #713059 +(1255)- [X] <SaintAlvus> Does the name Doctor Pavlov ring a bell?
