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* http.c: mark file-local functions staticJunio C Hamano2010-01-12
| | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Smart push over HTTP: client sideShawn O. Pearce2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The git-remote-curl backend detects if the remote server supports the git-receive-pack service, and if so, runs git-send-pack in a pipe to dump the command and pack data as a single POST request. The advertisements from the server that were obtained during the discovery are passed into git-send-pack before the POST request starts. This permits git-send-pack to operate largely unmodified. For smaller packs (those under 1 MiB) a HTTP/1.0 POST with a Content-Length is used, permitting interaction with any server. The 1 MiB limit is arbitrary, but is sufficent to fit most deltas created by human authors against text sources with the occasional small binary file (e.g. few KiB icon image). The configuration option http.postBuffer can be used to increase (or shink) this buffer if the default is not sufficient. For larger packs which cannot be spooled entirely into the helper's memory space (due to http.postBuffer being too small), the POST request requires HTTP/1.1 and sets "Transfer-Encoding: chunked". This permits the client to upload an unknown amount of data in one HTTP transaction without needing to pregenerate the entire pack file locally. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> CC: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* http*: add helper methods for fetching objects (loose)Tay Ray Chuan2009-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code handling the fetching of loose objects in http-push.c and http-walker.c have been refactored into new methods and a new struct (object_http_request) in http.c. They are not meant to be invoked elsewhere. The new methods in http.c are - new_http_object_request - process_http_object_request - finish_http_object_request - abort_http_object_request - release_http_object_request and the new struct is http_object_request. RANGER_HEADER_SIZE and no_pragma_header is no longer made available outside of http.c, since after the above changes, there are no other instances of usage outside of http.c. Remove members of the transfer_request struct in http-push.c and http-walker.c, including filename, real_sha1 and zret, as they are used no longer used. Move the methods append_remote_object_url() and get_remote_object_url() from http-push.c to http.c. Additionally, get_remote_object_url() is no longer defined only when USE_CURL_MULTI is defined, since non-USE_CURL_MULTI code in http.c uses it (namely, in new_http_object_request()). Refactor code from http-push.c::start_fetch_loose() and http-walker.c::start_object_fetch_request() that deals with the details of coming up with the filename to store the retrieved object, resuming a previously aborted request, and making a new curl request, into a new function, new_http_object_request(). Refactor code from http-walker.c::process_object_request() into the function, process_http_object_request(). Refactor code from http-push.c::finish_request() and http-walker.c::finish_object_request() into a new function, finish_http_object_request(). It returns the result of the move_temp_to_file() invocation. Add a function, release_http_object_request(), which cleans up object request data. http-push.c and http-walker.c invoke this function separately; http-push.c::release_request() and http-walker.c::release_object_request() do not invoke this function. Add a function, abort_http_object_request(), which unlink()s the object file and invokes release_http_object_request(). Update http-walker.c::abort_object_request() to use this. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* http*: add helper methods for fetching packsTay Ray Chuan2009-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code handling the fetching of packs in http-push.c and http-walker.c have been refactored into new methods and a new struct (http_pack_request) in http.c. They are not meant to be invoked elsewhere. The new methods in http.c are - new_http_pack_request - finish_http_pack_request - release_http_pack_request and the new struct is http_pack_request. Add a function, new_http_pack_request(), that deals with the details of coming up with the filename to store the retrieved packfile, resuming a previously aborted request, and making a new curl request. Update http-push.c::start_fetch_packed() and http-walker.c::fetch_pack() to use this. Add a function, finish_http_pack_request(), that deals with renaming the pack, advancing the pack list, and installing the pack. Update http-push.c::finish_request() and http-walker.c::fetch_pack to use this. Update release_request() in http-push.c and http-walker.c to invoke release_http_pack_request() to clean up pack request helper data. The local_stream member of the transfer_request struct in http-push.c has been removed, as the packfile pointer will be managed in the struct http_pack_request. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* http*: add http_get_info_packsTay Ray Chuan2009-06-06
| | | | | | | | | | | | | | | | | | | | | http-push.c and http-walker.c no longer have to use fetch_index or setup_index; they simply need to use http_get_info_packs, a new http method, in their fetch_indices implementations. Move fetch_index() and rename to fetch_pack_index() in http.c; this method is not meant to be used outside of http.c. It invokes end_url_with_slash with base_url; apart from that change, the code is identical. Move setup_index() and rename to fetch_and_setup_pack_index() in http.c; this method is not meant to be used outside of http.c. Do not immediately set ret to 0 in http-walker.c::fetch_indices(); instead do it in the HTTP_MISSING_TARGET case, to make it clear that the HTTP_OK and HTTP_MISSING_TARGET cases both return 0. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* http.c: new functions for the http APIMike Hommey2009-06-06
| | | | | | | | | | | | | | | | | | The new functions added are: - http_request() (internal function) - http_get_strbuf() - http_get_file() - http_error() http_get_strbuf and http_get_file allow respectively to retrieve contents of an URL to a strbuf or an opened file handle. http_error prints out an error message containing the URL and the curl error (in curl_errorstr). Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* http*: move common variables and macros to http.[ch]Tay Ray Chuan2009-06-06
| | | | | | | | | | | | | | | | Move RANGE_HEADER_SIZE to http.h. Create no_pragma_header, the curl header list containing the header "Pragma:" in http.[ch]. It is allocated in http_init, and freed in http_cleanup. This replaces the no_pragma_header in http-push.c, and the no_pragma_header member in walker_data in http-walker.c. Create http_is_verbose. It is to be used by methods in http.c, and is modified at the entry points of http.c's users, namely http-push.c (when parsing options) and http-walker.c (in get_http_walker). Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Allow curl to rewind the read buffersMartin Storsjö2009-04-02
| | | | | | | | | | | | | | | | | | | | | When using multi-pass authentication methods, the curl library may need to rewind the read buffers (depending on how much already has been fed to the server) used for providing data to HTTP PUT, POST or PROPFIND, and in order to allow the library to do so, we need to tell it how by providing either an ioctl callback or a seek callback. This patch adds an ioctl callback, which should be usable on older curl versions (since 7.12.3) than the seek callback (introduced in curl 7.18.0). Some HTTP servers (such as Apache) give an 401 error reply immediately after receiving the headers (so no data has been read from the read buffers, and thus no rewinding is needed), but other servers (such as Lighttpd) only replies after the whole request has been sent and all data has been read from the read buffers, making rewinding necessary. Signed-off-by: Martin Storsjo <martin@martin.st> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Work around gcc warnings from curl headersJunio C Hamano2008-07-04
| | | | | | | | | | | | | | After master.k.org upgrade, I started seeing these warning messages: transport.c: In function 'get_refs_via_curl': transport.c:458: error: call to '_curl_easy_setopt_err_write_callback' declared with attribute warning: curl_easy_setopt expects a curl_write_callback argument for this option It appears that the curl header wants to enforce the function signature for callback function given to curl_easy_setopt() to be compatible with that of (*curl_write_callback) or fwrite. This patch seems to work the issue around. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Make walker.fetch_ref() take a struct ref.Daniel Barkalow2008-04-26
| | | | | | | | | | | | | | | | This simplifies a few things, makes a few things slightly more complicated, but, more importantly, allows that, when struct ref can represent a symref, http_fetch_ref() can return one. Incidentally makes the string that http_fetch_ref() gets include "refs/" (if appropriate), because that's how the name field of struct ref works. As far as I can tell, the usage in walker:interpret_target() wouldn't have worked previously, if it ever would have been used, which it wouldn't (since the fetch process uses the hash instead of the name of the ref there). Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Set proxy override with http_init()Mike Hommey2008-02-27
| | | | | | | | | | | | | | | | | | | | In transport.c, proxy setting (the one from the remote conf) was set through curl_easy_setopt() call, while http.c already does the same with the http.proxy setting. We now just use this infrastructure instead, and make http_init() now take the struct remote as argument so that it can take the http_proxy setting from there, and any other property that would be added later. At the same time, we make get_http_walker() take a struct remote argument too, and pass it to http_init(), which makes remote defined proxy be used for more than get_refs_via_curl(). We leave out http-fetch and http-push, which don't use remotes for the moment, purposefully. Signed-off-by: Mike Hommey <mh@glandium.org> Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Clarify that http-push being temporarily disabled with older cURLJunio C Hamano2008-01-22
| | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Move fetch_ref from http-push.c and http-walker.c to http.cMike Hommey2007-12-14
| | | | | | | | Make the necessary changes to be ok with their difference, and rename the function http_fetch_ref. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Use strbuf in http codeMike Hommey2007-12-14
| | | | | | | Also, replace whitespaces with tabs in some places Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Avoid redundant declaration of missing_target()Mike Hommey2007-12-14
| | | | | Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Cleanup variables in http.[ch]Mike Hommey2007-12-09
| | | | | | | | Quite some variables defined as extern in http.h are only used in http.c, and some others, only defined in http.c, were not static. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Make function to refill http queue a callbackDaniel Barkalow2007-09-19
| | | | | | | | | | | This eliminates the last function provided by the code using http.h as a global symbol, so it should be possible to have multiple programs using http.h in the same executable, and it also adds an argument to that callback, so that info can be passed into the callback without being global. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Refactor http.h USE_CURL_MULTI fill_active_slots().Daniel Barkalow2007-09-19
| | | | | | | | This removes all of the boilerplate and http-internal stuff from fill_active_slots() and makes it easy to turn into a callback. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* http-fetch: Disable use of curl multi support for libcurl < 7.16.Alexandre Julliard2007-05-03
| | | | | | | | | | curl_multi_remove_handle() is broken in libcurl < 7.16, in that it doesn't correctly update the active handles count when a request is aborted. This causes the transfer to hang forever waiting for the handle count to become less than the number of active requests. Signed-off-by: Alexandre Julliard <julliard@winehq.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Work around http-fetch built with cURL 7.16.0Junio C Hamano2006-12-27
| | | | | | | | | | | It appears that curl_easy_duphandle() from libcurl 7.16.0 returns a curl session handle which fails GOOD_MULTI_HANDLE() check in curl_multi_add_handle(). This causes fetch_ref() to fail because start_active_slot() cannot start the request. For now, check for 7.16.0 to work this issue around. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Patch for http-fetch.c and older curl releasesArt Haas2006-09-20
| | | | | | | | | | | | | | | | Older curl releases do not define CURLE_HTTP_RETURNED_ERROR, they use CURLE_HTTP_NOT_FOUND instead. Newer curl releases keep the CURLE_HTTP_NOT_FOUND definition but using a -DCURL_NO_OLDIES preprocessor flag the old name will not be present in the 'curl.h' header. This patch makes our code written for newer releases of the curl library but allow compiling against an older curl (older than 0x070a03) by defining the missing CURLE_HTTP_RETURNED_ERROR as a synonym for CURLE_HTTP_NOT_FOUND. Signed-off-by: Art Haas <ahaas@airmail.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
* HTTP slot reuse fixesNick Hengeveld2006-03-10
| | | | | | | | Incorporate into http-push a fix related to accessing slot results after the slot was reused, and fix a case in run_active_slot where a finished slot wasn't detected if the slot was reused. Signed-off-by: Junio C Hamano <junkio@cox.net>
* http-fetch: Abort requests for objects which arrived in packsMark Wooding2006-02-07
| | | | | | | | | | In fetch_object, there's a call to release an object request if the object mysteriously arrived, say in a pack. Unfortunately, the fetch attempt for this object might already be in progress, and we'll leak the descriptor. Instead, try to tidy away the request. Signed-off-by: Mark Wooding <mdw@distorted.org.uk> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Fix HTTP request result processing after slot reuseNick Hengeveld2006-01-31
| | | | | | | | Add a way to store the results of an HTTP request when a slot finishes so the results can be processed after the slot has been reused. Signed-off-by: Nick Hengeveld <nickh@reactrix.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Isolate shared HTTP request functionalityNick Hengeveld2005-11-19
Move shared HTTP request functionality out of http-fetch and http-push, and replace the two fwrite_buffer/fwrite_buffer_dynamic functions with one fwrite_buffer function that does dynamic buffering. Use slot callbacks to process responses to fetch object transfer requests and push transfer requests, and put all of http-push into an #ifdef check for curl multi support. Signed-off-by: Nick Hengeveld <nickh@reactrix.com> Signed-off-by: Junio C Hamano <junkio@cox.net>