ibrowse is a HTTP client. The following are a list of features. - RFC2616 compliant (AFAIK) - supports GET, POST, OPTIONS, HEAD, PUT, DELETE, TRACE, MKCOL, PROPFIND, PROPPATCH, LOCK, UNLOCK, MOVE and COPY - Understands HTTP/0.9, HTTP/1.0 and HTTP/1.1 - Understands chunked encoding - Can generate requests using Chunked Transfer-Encoding - Pools of connections to each webserver - Pipelining support - Download to file - Asynchronous requests. Responses are streamed to a process - Basic authentication - Supports proxy authentication - Can talk to Secure webservers using SSL - any other features in the code not listed here :) ibrowse is available under two different licenses. LGPL or the BSD license. Comments to : Chandrashekhar.Mullaparthi@gmail.com Version : 2.2.0 Latest version : git://github.com/cmullaparthi/ibrowse.git CONTRIBUTORS ============ The following people have helped maked ibrowse better by reporting bugs, supplying patches and also asking for new features. Please write to me if you have contributed and I've missed you out. In alphabetical order: Adam Kocoloski Andrew Tunnell-Jones Anthony Molinaro Benoit Chesneau Chris Newcombe Dan Kelley Derek Upham Eric Merritt Erik Reitsma Filipe David Manana Geoff Cant Jeroen Koops Joćo Lopes Joseph Wayne Norton Karol Skocik Kostis Sagonas Matthew Reilly Oscar Hellström Paul J. Davis Peter Kristensen Ram Krishnan Richard Cameron Ryan Zezeski Sean Hinde Seth Falcon Steve Vinoski Thomas Lindgren Younčs Hafri fholzhauser (https://github.com/fholzhauser/) tholschuh (https://github.com/tholschuh/) CONTRIBUTIONS & CHANGE HISTORY ============================== 13-04-2011 - v2.2.0 * Filipe David Manana added IPv6 support. This is a mjor new feature, Thank you Filipe! * Joseph Wayne Norton contributed tweaks to .gitignore 09-02-2011 - v2.1.4 * Fixed a bug reported by Ryan Zezeski with the save_response_to_file option. https://github.com/cmullaparthi/ibrowse/issues#issue/33 16-01-2011 - v2.1.3 * Fixed issues with streaming and chunked responses when using the 'caller controls socket' feature. See following links for details. Contributed by Filipe David Manana. https://github.com/cmullaparthi/ibrowse/pull/24 https://github.com/cmullaparthi/ibrowse/pull/25 https://github.com/cmullaparthi/ibrowse/pull/27 https://github.com/cmullaparthi/ibrowse/pull/28 https://github.com/cmullaparthi/ibrowse/pull/29 * Fix for issue 32 reported by fholzhauser https://github.com/cmullaparthi/ibrowse/issues#issue/32 * Fixed some dialyzer warnings. Thanks to Kostis for reporting them. 20-12-2010 - v2.1.2 * Pipelining wasn't working when used in conjunction with the {stream_to, {self(), once}} option. Bug report by Filipe David Manana. 10-12-2010 - v2.1.1 * Fix for https://github.com/cmullaparthi/ibrowse/issues/issue/20 by Filipe David Manana * Fix for https://github.com/cmullaparthi/ibrowse/issues/issue/21 by Filipe David Manana * Fix for https://github.com/cmullaparthi/ibrowse/issues/issue/23 by Filipe David Manana * Fix for bugs when using SSL by Joćo Lopes 25-10-2010 - v2.1.0 * Fixed build on OpenSolaris. Bug report and patch from tholschuh. http://github.com/cmullaparthi/ibrowse/issues/issue/10 * Fixed behaviour of inactivity_timeout option. Reported by Joćo Lopes. http://github.com/cmullaparthi/ibrowse/issues/issue/11 * Prevent atom table pollution when bogus URLs are input to ibrowse. Bug report by Joćo Lopes. http://github.com/cmullaparthi/ibrowse/issues/issue/13 * Automatically do Chunked-Transfer encoding of request body when the body is generated by a fun. Patch provided by Filipe David Manana. http://github.com/cmullaparthi/ibrowse/issues/issue/14 * Depending on input options, ibrowse sometimes included multiple Content-Length headers. Bug reported by Paul J. Davis http://github.com/cmullaparthi/ibrowse/issues/issue/15 * Deal with webservers which do not provide a Reason-Phrase on the response Status-Line. Patch provided by Jeroen Koops. http://github.com/cmullaparthi/ibrowse/issues/issue/16 * Fixed http://github.com/cmullaparthi/ibrowse/issues/issue/17 This was reported by Filipe David Manana. * Fixed http://github.com/cmullaparthi/ibrowse/issues/issue/19 This was reported by Dan Kelley and Filipe David Manana. * Added ibrowse:stream_close/1 to close the connection associated with a certain response stream. Patch provided by Joćo Lopes. * Prevent port number being included in the Host header when port 443 is intended. Bug reported by Andrew Tunnell-Jones 24-09-2010 - v2.0.1 * Removed a spurious io:format statement 22-09-2010 - v2.0.0. * Added option preserve_chunked_encoding. This allows the caller to get the raw HTTP response when the Transfer-Encoding is Chunked. This feature was requested by Benoit Chesneau who wanted to write a HTTP proxy using ibrowse. * Fixed bug with the {stream_to, {Pid, once}} option. Bug report and lot of help from Filipe David Manana. Thank you Filipe. * The {error, conn_failed} and {error, send_failed} return values are now of the form {error, {conn_failed, Err}} and {error, {send_failed, Err}}. This is so that the specific socket error can be returned to the caller. I think it looks a bit ugly, but that is the best compromise I could come up with. * Added application configuration parameters default_max_sessions and default_max_pipeline_size. These were previously hard coded to 10. * Versioning of ibrowse now follows the Semantic Versioning principles. See http://semver.org. Thanks to Anthony Molinaro for nudging me in this direction. * The connect_timeout option now only applies to the connection setup phase. In previous versions, the time taken to setup the connection was deducted from the specified timeout value for the request. 17-07-2010 - * Merged change made by Filipe David Manana to use the base64 module for encoding/decoding. 11-06-2010 - * Removed use of deprecated concat_binary. Patch supplied by Steve Vinoski 10-06-2010 - * Fixed bug in https requests not going via the proxy 12-05-2010 - * Added support for the CONNECT method to tunnel HTTPS through a proxy. When a https URL is requested through a proxy, ibrowse will automatically use the CONNECT method to first setup a tunnel through the proxy. Once this succeeds, the actual request is dispatched. Successfully tested with the new SSL implementation in R13B-03 * Added SSL support for direct connections. See ibrowse:spawn_worker_process/1 and ibrowse:spawn_link_worker_process/1 * Added option to return raw status line and raw unparsed headers 23-04-2010 - * Fixes to URL parsing by Karol Skocik 08-11-2009 - * Added option headers_as_is 04-10-2009 - * Patch from Kostis Sagonas to cleanup some code and suppress dialyzer warnings 24-09-2009 - * When a filename was supplied with the 'save_response_to_file' option, the option was being ignored. Bug report from Adam Kocoloski 05-09-2009 - * Introduced option to allow caller to set socket options. 29-07-2009 - * The ETS table created for load balancing of requests was not being deleted which led to the node not being able to create any more ETS tables if queries were made to many number of webservers. ibrowse now deletes the ETS table it creates once the last connection to a webserver is dropped. Reported by Seth Falcon. * Spurious data being returned at end of body in certain cases of chunked encoded responses from the server. Reported by Chris Newcombe. 03-07-2009 - Added option {stream_to, {Pid, once}} which allows the caller to control when it wants to receive more data. If this option is used, the call ibrowse:stream_next(Req_id) should be used to get more data. - Patch submitted by Steve Vinoski to remove compiler warnings about the use of obsolete guards 29-06-2009 - * Fixed following issues reported by Oscar Hellström - Use {active, once} instead of {active, true} - Fix 'dodgy' timeout handling - Use binaries internally instead of lists to reduce memory consumption on 64 bit platforms. The default response format is still 'list' to maintain backwards compatibility. Use the option {response_format, binary} to get responses as binaries. * Fixed chunking bug (reported by Adam Kocoloski) * Added new option {inactivity_timeout, Milliseconds} to timeout requests if no data is received on the link for the specified interval. Useful when responses are large and links are flaky. * Added ibrowse:all_trace_off/0 to turn off all tracing * Change to the way responses to asynchronous requests are returned. The following messages have been removed. * {ibrowse_async_response, Req_id, {chunk_start, Chunk_size}} * {ibrowse_async_response, Req_id, chunk_end} * Fixed Makefiles as part of Debian packaging (thanks to Thomas Lindgren) * Moved repository from Sourceforge to Github 11-06-2009 - * Added option to control size of streamed chunks. Also added option for the client to receive responses in binary format. 21-05-2008 - * Fixed bug in reading some options from the ibrowse.conf file. Reported by Erik Reitsma on the erlyaws mailing list * Fixed bug when cleaning up closing connections 27-03-2008 - * Major rewrite of the load balancing feature. Additional module, ibrowse_lb.erl, introduced to achieve this. * Can now get a handle to a connection process which is not part of the load balancing pool. Useful when an application is making requests to a webserver which are time consuming (such as uploading a large file). Such requests can be put on a separate connection, and all other smaller/quicker requests can use the load balancing pool. See ibrowse:spawn_worker_process/2 and ibrowse:spawn_link_worker_process/2 * Ram Krishnan sent a patch to enable a client to send a lot of data in a request by providing a fun which is invoked by the connection handling process. This fun can fetch the data from any where. This is useful when trying to upload a large file to a webserver. * Use the TCP_NODELAY option on every socket by default * Rudimentary support for load testing of ibrowse. Undocumented, but see ibrowse_test:load_test/3. Use the source, Luke! * New function ibrowse:show_dest_status/2 to view state of connections/pipelines to a web server 20-02-2008 - Ram Krishnan sent another patch for another hidden bug in the save_response_to_file feature. 07-02-2008 - Ram Krishnan (kriyative _at_ gmail dot com) sent a simple patch to enable specifying the filename in the save_response_to_file option. When testing the patch, I realised that my original implementation of this feature was quite flaky and a lot of corner cases were not covered. Fixed all of them. Thanks Ram! 17-10-2007 - Matthew Reilly (matthew dot reilly _at_ sipphone dot com) sent a bug report and a fix. If the chunk trailer spans two TCP packets, then ibrowse fails to recognise that the chunked transfer has ended. 29-08-2007 - Bug report by Peter Kristensen(ptx _at_ daimi dot au dot dk). ibrowse crashes when the webserver returns just the Status line and nothing else. 28-06-2007 - Added host_header option to enable connection to secure sites via stunnel 20-04-2007 - Geoff Cant sent a patch to remove URL encoding for digits in ibrowse_lib:url_encode/1. ibrowse had a dependency on the inets application because the ibrowse_http_client.erl invoked httpd_util:encode_base64/1. This dependency is now removed and the encode_base64/1 has been implemented in ibrowse_lib.erl 06-03-2007 - Eric Merritt sent a patch to support WebDAV requests. 12-01-2007 - Derek Upham sent in a bug fix. The reset_state function was not behaving correctly when the transfer encoding was not chunked. 13-11-2006 - Youns Hafri reported a bug where ibrowse was not returning the temporary filename when the server was closing the connection after sending the data (as in HTTP/1.0). Released ibrowse under the BSD license 12-10-2006 - Chris Newcombe reported bug in dealing with requests where no body is expected in the response. The first request would succeed and the next request would hang. 24-May-2006 - Sean Hinde reported a bug. Async responses with pipelining was returning the wrong result. 08-Dec-2005 - Richard Cameron (camster@citeulike.org). Patch to ibrowse to prevent port number being included in the Host header when port 80 is intended. 22-Nov-2005 - Added ability to generate requests using the Chunked Transfer-Encoding. 08-May-2005 - Youns Hafri made a CRUX LINUX port of ibrowse. http://yhafri.club.fr/crux/index.html Here are some usage examples. Enjoy! 5> ibrowse:start(). {ok,<0.94.0>} %% A simple GET 6> ibrowse:send_req("http://intranet/messenger/", [], get). {ok,"200", [{"Server","Microsoft-IIS/5.0"}, {"Content-Location","http://intranet/messenger/index.html"}, {"Date","Fri, 17 Dec 2004 15:16:19 GMT"}, {"Content-Type","text/html"}, {"Accept-Ranges","bytes"}, {"Last-Modified","Fri, 17 Dec 2004 08:38:21 GMT"}, {"Etag","\"aa7c9dc313e4c41:d77\""}, {"Content-Length","953"}], "\r\n\r\n
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