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  • Setting outbound 'Expires:' in Squid server's HTTP header

    - by IkeaPimp
    I'm having a problem where items served by my Squid server are being cached by Limelight for too long, sometimes days. It happens when a piece of content has been static for a long time (weeks) and then undergoes numerous changes in a matter of hours. Limelight gets its content from our Squid server and I'm told that if I can add 'Expires: 15m' in the HTTP header the Squid server sends, Limelight will not cache the image for more than 15 min. Unfortunately, I can fond no setting in Squid that will allow me to add this to the header. Here's the HTTP header as presently being sent: HTTP/1.0 200 OK Date: Tue, 15 Dec 2009 23:57:33 GMT Server: nginx/0.5.26 Content-Type: image/jpeg Content-Length: 83843 Last-Modified: Tue, 15 Dec 2009 23:52:00 GMT Accept-Ranges: bytes Age: 450 X-Cache: HIT from squid01.prod.mydomain X-Cache-Lookup: HIT from squid01.prod.mydomain:3128 Via: 1.0 squid01.prod.mydomain:3128 (squid/2.6.STABLE14) Connection: close

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  • Should I allow sending complete structures when using PUT for updates in a REST API or not?

    - by dafmetal
    I am designing a REST API and I wonder what the recommended way to handle updates to resources would be. More specifically, I would allow updates through a PUT on the resource, but what should I allow in the body of the PUT request? Always the complete structure of the resource? Always the subpart (that changed) of the structure of the resource? A combination of both? For example, take the resource http://example.org/api/v1/dogs/packs/p1. A GET on this resource would give the following: Request: GET http://example.org/api/v1/dogs/packs/p1 Accept: application/xml Response: <pack> <owner>David</owner> <dogs> <dog> <name>Woofer</name> <breed>Basset Hound</breed> </dog> <dog> <name>Mr. Bones</name> <breed>Basset Hound</breed> </dog> </dogs> </pack> Suppose I want to add a dog (Sniffers the Basset Hound) to the pack, would I support either: Request: PUT http://example.org/api/v1/dogs/packs/p1 <dog> <name>Sniffers</name> <breed>Basset Hound</breed> </dog> Response: HTTP/1.1 200 OK or Request: PUT http://example.org/api/v1/dogs/packs/p1 <pack> <owner>David</owner> <dogs> <dog> <name>Woofer</name> <breed>Basset Hound</breed> </dog> <dog> <name>Mr. Bones</name> <breed>Basset Hound</breed> </dog> <dog> <name>Sniffers</name> <breed>Basset Hound</breed> </dog> </dogs> </pack> Response: HTTP/1.1 200 OK or both? If supporting updates through subsections of the structure is recommended, how would I handle deletes (such as when a dog dies)? Through query parameters?

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  • How to validate HTTP request headers before receiving request body using WCF

    - by anelson
    I'm implementing a REST service using WCF which will be used to upload very large files. The HTTP headers in this request will communicate information which will be validated prior to allowing the upload to proceed (things like permissions, available disk space, etc). It's possible this validation will fail resulting in an error response. I'd like to do this validation prior to the client sending the body of the request, so it has a chance to detect failure before uploading potentially gigabytes of data. RESTful web services use the HTTP 1.1 Expect: 100-continue in the request to implement this. For example Amazon S3's REST API can validate your key and ACLs in response to an object PUT operation, returning 100 Continue if all is well, indicating you may proceed to send your data. I've rummaged around the WCF documentation and I just can't see a way to accomplish this without doing some pretty low-level hooking into the HTTP request processing pipeline. How would you suggest I solve this problem?

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  • Get http status in Qt WebKit

    - by RR
    Hello all: What I would like to implement is 1 Using Qt's WebView(part of QtWebKit) to access some page. 2 Show specified html page if got HTTP 4xx, 5xx status (Ex HTTP 404, 500). 3 Also shows specified page when network connection is unavailable. For now, I had only done job 1... In job 2, how did I get http status from WebView ? In job 3, I'm looking about QUrl APIs now. Anyone have idea or expreience yet ?

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  • Multiple complete HTTP requests stuck in TCP CLOSE_WAIT state

    - by Sean Owen
    I have a Java and Tomcat-based server application which initiates many outbound HTTP requests to other web sites. We use Jakarta's HTTP Core/Client libraries, very latest versions. The server locks up at some point since all its worker threads are stuck trying to close completed HTTP connections. Using 'lsof' reveals a bunch of sockets stuck in TCP CLOSE_WAIT state. This doesn't happen for all, or even most connections. In fact, I saw it before and resolved it by making sure to set the Connection: Close response header. So that makes me think it may be bad behavior of remote servers. It may have come up again since I moved the app to a totally new service provider -- different OS, network situation. But, I am still at a loss as to what I could do, if anything, to work around this. Some poking around on the internet didn't turn up anything I'm not already doing. Just thought I'd ask if anyone has seen and solved this?

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  • Odd Series of Packets, How would I reproduce this behavior?

    - by JustSmith
    I recorded a series of http packets that I cant programmatically recreate. The series of packets goes like this: HTTP GET /axis-cgi/admin/param.cgi?action=list&group=Network.eth0.MACAddress,Properties.System.SerialNumber,DVTelTest,SightLogix.ProdShortName HTTP/1.1 HTTP HTTP/1.1 200 OK (text/plain) HTTP GET /axis-cgi/admin/param.cgi?action=list&group=Properties.Image.Resolution HTTP/1.1 HTTP HTTP/1.1 200 OK (text/plain) HTTP GET /axis-cgi/admin/param.cgi?action=update&Network.RTSP.ProtViewer=password HTTP/1.1 HTTP GET /axis-cgi/admin/param.cgi?action=list&group=Event HTTP/1.1 HTTP HTTP/1.1 200 OK (text/plain) HTTP GET /axis-cgi/admin/param.cgi?action=list&group=ImageSource.I0.Sensor HTTP/1.1 HTTP HTTP/1.1 200 OK (text/plain) Notice the two GET followed by one response. I though the two gets were going out at the same time but there is no corresponding number of responses. Also when trying to reproduce this pattern as the server if I abort the first GET request the client waits until it times out and starts the request over with out sending any other requests. What is happening here? How can I reproduce it?

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  • Modifying all HTTP requests on iPhoneOS with MobileSubstrate?

    - by Yifan
    I want to write a MobileSubstrate (http://www.iphonedevwiki.net/index.php/MobileSubstrate) addon that takes every HTTP request and modifies the URL. (The reason is very complicated and would take a while to explain, so just trust me that there's not an alternative). Basically, I need to know what's the best Objective-C message or C function that I should overwrite to intercept any HTTP request, modify the URL, and send the request back to the original function (this shouldn't be just the first request sent by an application, but any redirects too). I think it may be in NSURL or CFNetwork, but am not sure where exactly. This function should, when replaced, work with any apps and the OS itself.

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  • Server returned HTTP response code: 500 for URL

    - by user617162
    java.io.IOException: Server returned HTTP response code: 500 for URL: http://ww .huadt.com.cn/zh-cn/i/l/@357671030745308@V500@0000@AUTOLOW@1@11d590f7$GPRMC,065 48.000,A,3959.8587,N,11617.2447,E,0.00,55.32,210311,,,A*56@@ at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown S urce) at hdt.SendCmdToP.Sendplatform(SendCmdToP.java:67) at hdt.SendCmdToP.process(SendCmdToP.java:198) at hdt.SendCmdToP.run(SendCmdToP.java:131) java.lang.NullPointerException at hdt.SendCmdToP.Sendplatform(SendCmdToP.java:91) at hdt.SendCmdToP.process(SendCmdToP.java:198) at hdt.SendCmdToP.run(SendCmdToP.java:131) Appeared pointer, and 500 wrong with the closure of the abnormal, a firewall relationship? If not is it code problems? Please help everybody see how to solve the problem. thanks?

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  • Use boost date_time to parse and create HTTP-dates

    - by John Price
    I'm writing a kind of HTTP proxy, so I need to be able to do 3 things: Parse an HTTP-date given any of the 3 formats specified in RFC 2616, sec 3.3, Convert a file date-time to an HTTP-date string, and Output the date to a string. For reference, theses are examples of the date-times I need to parse. I will output only the first format: Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123 Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036 Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format I'm pretty sure Boost date_time can do all of this, but I'm having some trouble with number 1. Does anyone already have code to do this? Perhaps I'm not using google proficiently, but I can't find an example of how to do this with boost anywhere. Thanks for any help!

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  • Custom HTTP Request headers in HTML

    - by matsko
    Does anyone know if its possible to send out custom http REQUEST headers in HTML without having to use javascript (no xhr wrapper). Would it be possible to define them as meta tags within the head? Or may they be defined in the form somewhere? <meta http-equip="x-something-custom" name="custom value" /> this works, however, this is a RESPONSE header. What I need to set a REQUEST header. I'm not looking for setting hidden fields in forms, but actual raw http header manipulation with html tags. Is this possible?

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  • Spring-Security http-basic auth in addition to other authentication types

    - by Keith
    I have a pretty standard existing webapp using spring security that requires a database-backed form login for user-specific paths (such as /user/**), and some completely open and public paths (such as /index.html). However, as this webapp is still under development, I'd like to add a http-basic popup across all paths (/**) to add some privacy. Therefore, I'm trying to add a http-basic popup that asks for a universal user/pass combo (ex admin/foo) that would be required to view any path, but then still keep intact all of the other underlying authentication mechanisms. I can't really do anything with the <http> tag, since that will confuse the "keep out the nosy crawlers" authentication with the "user login" authentication, and I'm not seeing any way to associate different paths with different authentication mechanisms. Is there some way to do this with spring security? Alternatively, is there some kind of a dead simple filter that I can apply independently of spring-security's authentication mechanisms?

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  • Where to learn about HTTP?

    - by razass
    I am fluent in HTML and PHP and slowly learning JavaScript however I have noticed that there is a huge hole in my knowledge when it comes to understanding how web software communications actually work. I understand the flow of information across the net however I would like to learn about HTTP protocols to better understand how the data is actually sent back and forth through the internet to help me understand things like REST, HTTP Headers, AJAX requests, etc. However, I must be searching the wrong terms because I haven't been able to find a good description of HTTP protocols. Any help is appreciated to point me in the right direction. Thanks!

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  • Reading the Set-Cookie instructions in an HTTP Response header

    - by Eduardo León
    Is there any standard means in PHP to read the Set-Cookie instructions in an HTTP Response header, without manually parsing it? More specifically, I want to read the value of the ASP.NET_SessionId cookie returned by an ASP.NET Web Service I am consuming. EDIT: I am consuming the Web Service using PHP's native SoapClient class. I can use the __getLastResponseHeaders() method to retrieve the whole of the HTTP response header returned by the Web Service: HTTP/1.1 200 OK Cache-Control: private, max-age=0 Content-Type: text/xml; charset=utf-8 Server: Microsoft-IIS/7.5 Set-Cookie: ASP.NET_SessionId=ku501l55o300ik3sa2gu3vzj; path=/; HttpOnly X-AspNet-Version: 2.0.50727 X-Powered-By: ASP.NET Date: Tue, 11 Jan 2011 23:34:02 GMT Content-Length: 368 But I want to extract the value of the ASP.NET_SessionID cookie: ku501l55o300ik3sa2gu3vzj And, of course, I don't want to do it manually.

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  • Correct syntax of a HTTP 100 Continue response

    - by PartlyCloudy
    For me, one of the weakest points of the HTTP 1.1 RFC and the various implementations around is how to deal with 100 Continue headers. I searched on the web for a while and had a look at different implementations. However, there is one thing I'm not sure of. what is the correct syntax of a 100 Continue message? Several sources claim, that this must be a single response line without any further header lines. However, I can't find that in the RFC 2616 reflected. So what is right? HTTP/1.1 100 Continue or HTTP/1.1 100 Continue [Additional Headers…] ?

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  • apache commons http client efficiency

    - by wo_shi_ni_ba_ba
    I use apache commons http client to send data via post every second, is there a way to make the following code more efficient? I know http is stateless, but is there anything I can do to improve since the base url is always the same in this case(only the parameter value change. private void sendData(String s){ try { HttpClient client = getHttpClient(); HttpPost method = new HttpPost("http://192.168.1.100:8080/myapp"); System.err.println("send to server "+s); List formparams = new ArrayList(); formparams.add(new BasicNameValuePair("packet", s)); UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, "UTF-8"); method.setEntity(entity); HttpResponse resp=client.execute(method); String res = EntityUtils.toString(resp.getEntity()); System.out.println(res); } catch (Exception e) { e.printStackTrace(); } } private HttpClient getHttpClient() { if(httpClient==null){ httpClient = new DefaultHttpClient(); } return httpClient; }

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  • How does HTTP Analyzer works?

    - by Rampage
    Halo, i am interest in methods, which http analyzer uses to capture data. I would like to write program which saves emails sent via web based clients. The problem is https and HTTP Analyzer solves it, but i dont know how. I got one interesting answer on my question before, but it doesnt reveal as much as i would like to know. Programs like HTTP Analyzer can catch the HTTPS data because they insert themselves in the HTTPS stack. As a result, they get the data after it's generated but before it's being encrypted and put in IP packets. This is highly non-trivial. How it is possible to make? If you have any interesting articles solving this issue, please let me know.

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  • Git apache : unable to push via http

    - by GlinesMome
    I have to setup a server which can allow http vcs management (such as git and svn). svn support works well, but I have some trouble with git. Actual configuration: CentOS 5 Apache 2.2.8 Git 1.7.4.1 The /etc/httpd/conf/httpd.conf content: ServerTokens OS ServerRoot "/etc/httpd" PidFile run/httpd.pid Timeout 120 KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 10 <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> <IfModule worker.c> StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> Listen 80 LoadModule auth_basic_module modules/mod_auth_basic.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule authn_file_module modules/mod_authn_file.so LoadModule authn_alias_module modules/mod_authn_alias.so LoadModule authn_anon_module modules/mod_authn_anon.so LoadModule authn_dbm_module modules/mod_authn_dbm.so LoadModule authn_default_module modules/mod_authn_default.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule authz_owner_module modules/mod_authz_owner.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule ldap_module modules/mod_ldap.so LoadModule authnz_ldap_module modules/mod_authnz_ldap.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule logio_module modules/mod_logio.so LoadModule env_module modules/mod_env.so LoadModule ext_filter_module modules/mod_ext_filter.so LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule dav_module modules/mod_dav.so LoadModule status_module modules/mod_status.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule info_module modules/mod_info.so LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule actions_module modules/mod_actions.so LoadModule speling_module modules/mod_speling.so LoadModule userdir_module modules/mod_userdir.so LoadModule alias_module modules/mod_alias.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule file_cache_module modules/mod_file_cache.so LoadModule mem_cache_module modules/mod_mem_cache.so LoadModule cgi_module modules/mod_cgi.so LoadModule mysql_auth_module modules/mod_auth_mysql.so LoadModule passenger_module /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/ext/apache2/mod_passenger.so PassengerRoot /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2 PassengerRuby /usr/bin/ruby Include conf.d/*.conf User apache Group apache ServerAdmin aedi.admin@domain ServerName s1.domain UseCanonicalName Off DocumentRoot "/data/www/" <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory "/data/www/"> Options -Indexes FollowSymLinks AllowOverride All Order allow,deny Allow from all </Directory> <IfModule mod_userdir.c> UserDir disable </IfModule> DirectoryIndex index.html index.html.var AccessFileName .htaccess <Files ~ "^\.ht"> Order allow,deny Deny from all </Files> TypesConfig /etc/mime.types DefaultType text/plain <IfModule mod_mime_magic.c> MIMEMagicFile conf/magic </IfModule> HostnameLookups Off ErrorLog logs/error_log LogLevel warn LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent CustomLog logs/access_log combined ServerSignature On Alias /icons/ "/var/www/icons/" <Directory "/var/www/icons"> Options Indexes MultiViews AllowOverride None Order allow,deny Allow from all </IfModule> </Directory> <IfModule mod_dav_fs.c> DAVLockDB /var/lib/dav/lockdb ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" <Directory "/var/www/cgi-bin"> AllowOverride None Options None Order allow,deny Allow from all </Directory> IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip AddIconByType (TXT,/icons/text.gif) text/* AddIconByType (IMG,/icons/image2.gif) image/* AddIconByType (SND,/icons/sound2.gif) audio/* AddIconByType (VID,/icons/movie.gif) video/* AddIcon /icons/binary.gif .bin .exe AddIcon /icons/binhex.gif .hqx AddIcon /icons/tar.gif .tar AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip AddIcon /icons/a.gif .ps .ai .eps AddIcon /icons/layout.gif .html .shtml .htm .pdf AddIcon /icons/text.gif .txt AddIcon /icons/c.gif .c AddIcon /icons/p.gif .pl .py AddIcon /icons/f.gif .for AddIcon /icons/dvi.gif .dvi AddIcon /icons/uuencoded.gif .uu AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl AddIcon /icons/tex.gif .tex AddIcon /icons/bomb.gif core AddIcon /icons/back.gif .. AddIcon /icons/hand.right.gif README AddIcon /icons/folder.gif ^^DIRECTORY^^ AddIcon /icons/blank.gif ^^BLANKICON^^ DefaultIcon /icons/unknown.gif ReadmeName README.html HeaderName HEADER.html AddLanguage ca .ca AddLanguage cs .cz .cs AddLanguage da .dk AddLanguage de .de AddLanguage el .el AddLanguage en .en AddLanguage eo .eo AddLanguage es .es AddLanguage et .et AddLanguage fr .fr AddLanguage he .he AddLanguage hr .hr AddLanguage it .it AddLanguage ja .ja AddLanguage ko .ko AddLanguage ltz .ltz AddLanguage nl .nl AddLanguage nn .nn AddLanguage no .no AddLanguage pl .po AddLanguage pt .pt AddLanguage pt-BR .pt-br AddLanguage ru .ru AddLanguage sv .sv AddLanguage zh-CN .zh-cn AddLanguage zh-TW .zh-tw LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW ForceLanguagePriority Prefer Fallback AddDefaultCharset UTF-8 AddType application/x-compress .Z AddType application/x-gzip .gz .tgz AddHandler type-map var AddType text/html .shtml AddOutputFilter INCLUDES .shtml Alias /error/ "/var/www/error/" <IfModule mod_negotiation.c> <IfModule mod_include.c> <Directory "/var/www/error"> AllowOverride None Options IncludesNoExec AddOutputFilter Includes html AddHandler type-map var Order allow,deny Allow from all LanguagePriority en es de fr ForceLanguagePriority Prefer Fallback </Directory> </IfModule> </IfModule> BrowserMatch "Mozilla/2" nokeepalive BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0 BrowserMatch "RealPlayer 4\.0" force-response-1.0 BrowserMatch "Java/1\.0" force-response-1.0 BrowserMatch "JDK/1\.0" force-response-1.0 BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully BrowserMatch "MS FrontPage" redirect-carefully BrowserMatch "^WebDrive" redirect-carefully BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully BrowserMatch "^gnome-vfs/1.0" redirect-carefully BrowserMatch "^XML Spy" redirect-carefully BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully NameVirtualHost *:80 NameVirtualHost *:443 <VirtualHost *:80> DocumentRoot /data/www/s1/html ServerName s1.asso.domain ErrorLog logs/s1.error.log </VirtualHost> <VirtualHost *:80> DocumentRoot /data/www/s2/old ServerName s2.domain ErrorLog logs/s2.error.log RailsBaseURI /blog <Directory /data/www/s2/html/blog> Options -MultiViews </Directory> </VirtualHost> <VirtualHost *:443> DocumentRoot /data/www/s2/html ServerName s2.domain ErrorLog logs/s2.error.log RailsBaseURI /blog <Directory /data/www/s2/html/blog> Options -MultiViews </Directory> </VirtualHost> The /etc/httpd/conf.d/git.conf content: Alias /git /data/www/s2/git <Directory /data/www/s2/git> Options +Indexes DAV on SSLRequireSSL </Directory> Fine, every repository are created by the same way: git --bare init "$1.git" && cd "$1.git" && git update-server-info && chmod -R 770 . && cd .. && git clone `pwd`/"$1.git" && cd "$1" && echo 42 > answer && git add . && git commit -m "Initial commit" && git push origin master && git rm answer && git commit -a -m "Clean repository" && git push && cd .. && rm -Rf "$1" Then, on the client side, I try: ~ $ git clone https://s2.domain/git/repo.git Cloning into 'repo'... warning: You appear to have cloned an empty repository. ~ $ cd repo repo $ echo 42 > answer && git add . && git commit -m "init" && git push origin master [master (root-commit) a2aadb1] init 1 file changed, 1 insertion(+) create mode 100644 answer Fetching remote heads... refs/ refs/heads/ refs/tags/ updating 'refs/heads/master' from 0000000000000000000000000000000000000000 to a2aadb1772e12104ce358f7ff9a11db5d93ead7d sending 3 objects MOVE d81cc0710eb6cf9efd5b920a8453e1e07157b6cd failed, aborting (22/502) MOVE 2c186ad49fa24695512df5e41cb5e6f2d33c119b failed, aborting (22/502) MOVE a2aadb1772e12104ce358f7ff9a11db5d93ead7d failed, aborting (22/502) Updating remote server info fatal: git-http-push failed The apache associated logs: my.ip - - [21/Sep/2012:16:19:19 +0200] "GET /git/repo.git/info/refs?service=git-upload-pack HTTP/1.1" 200 - "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:19 +0200] "GET /git/repo.git/HEAD HTTP/1.1" 200 23 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:48 +0200] "GET /git/repo.git/info/refs?service=git-receive-pack HTTP/1.1" 200 - "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "GET /git/repo.git/HEAD HTTP/1.1" 200 23 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/ HTTP/1.1" 207 569 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "HEAD /git/repo.git/info/refs HTTP/1.1" 200 - "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "HEAD /git/repo.git/objects/info/packs HTTP/1.1" 200 - "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "MKCOL /git/repo.git/info/ HTTP/1.1" 405 336 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "LOCK /git/repo.git/info/refs HTTP/1.1" 200 475 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "GET /git/repo.git/objects/info/packs HTTP/1.1" 200 1 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/refs/ HTTP/1.1" 207 2608 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/refs/heads/ HTTP/1.1" 207 941 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/refs/tags/ HTTP/1.1" 207 940 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "MKCOL /git/repo.git/refs/ HTTP/1.1" 405 336 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "MKCOL /git/repo.git/refs/heads/ HTTP/1.1" 405 342 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "LOCK /git/repo.git/refs/heads/master HTTP/1.1" 200 475 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/objects/a2/ HTTP/1.1" 404 317 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/objects/2c/ HTTP/1.1" 207 4565 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/objects/d8/ HTTP/1.1" 207 4565 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PUT /git/repo.git/objects/d8/1cc0710eb6cf9efd5b920a8453e1e07157b6cd_20ca3a58daa09e54112968cbd4e86580b6301074 HTTP/1.1" 201 373 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "MKCOL /git/repo.git/objects/a2/ HTTP/1.1" 201 296 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PUT /git/repo.git/objects/2c/186ad49fa24695512df5e41cb5e6f2d33c119b_20ca3a58daa09e54112968cbd4e86580b6301074 HTTP/1.1" 201 373 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "MOVE /git/repo.git/objects/d8/1cc0710eb6cf9efd5b920a8453e1e07157b6cd_20ca3a58daa09e54112968cbd4e86580b6301074 HTTP/1.1" 502 341 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "MOVE /git/repo.git/objects/2c/186ad49fa24695512df5e41cb5e6f2d33c119b_20ca3a58daa09e54112968cbd4e86580b6301074 HTTP/1.1" 502 341 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PUT /git/repo.git/objects/a2/aadb1772e12104ce358f7ff9a11db5d93ead7d_20ca3a58daa09e54112968cbd4e86580b6301074 HTTP/1.1" 201 373 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "MOVE /git/repo.git/objects/a2/aadb1772e12104ce358f7ff9a11db5d93ead7d_20ca3a58daa09e54112968cbd4e86580b6301074 HTTP/1.1" 502 341 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "UNLOCK /git/repo.git/refs/heads/master HTTP/1.1" 204 - "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/refs/ HTTP/1.1" 207 2608 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/refs/heads/ HTTP/1.1" 207 941 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "PROPFIND /git/repo.git/refs/tags/ HTTP/1.1" 207 940 "-" "git/1.7.11.4" my.ip - - [21/Sep/2012:16:19:49 +0200] "UNLOCK /git/repo.git/info/refs HTTP/1.1" 204 - "-" "git/1.7.11.4" I have tried many configurations (even smart http from progit), but a major part of them consider the fact that they have a dedicated domain, but I'm in a sub-directory, so I can't apply these examples. Have you got an idea of the problem? have you got solutions? have you got configuration example with non-root directory? For your help, In advance, Thanks.

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  • Syncing Data with a Server using Silverlight and HTTP Polling Duplex

    - by dwahlin
    Many applications have the need to stay in-sync with data provided by a service. Although web applications typically rely on standard polling techniques to check if data has changed, Silverlight provides several interesting options for keeping an application in-sync that rely on server “push” technologies. A few years back I wrote several blog posts covering different “push” technologies available in Silverlight that rely on sockets or HTTP Polling Duplex. We recently had a project that looked like it could benefit from pushing data from a server to one or more clients so I thought I’d revisit the subject and provide some updates to the original code posted. If you’ve worked with AJAX before in Web applications then you know that until browsers fully support web sockets or other duplex (bi-directional communication) technologies that it’s difficult to keep applications in-sync with a server without relying on polling. The problem with polling is that you have to check for changes on the server on a timed-basis which can often be wasteful and take up unnecessary resources. With server “push” technologies, data can be pushed from the server to the client as it changes. Once the data is received, the client can update the user interface as appropriate. Using “push” technologies allows the client to listen for changes from the data but stay 100% focused on client activities as opposed to worrying about polling and asking the server if anything has changed. Silverlight provides several options for pushing data from a server to a client including sockets, TCP bindings and HTTP Polling Duplex.  Each has its own strengths and weaknesses as far as performance and setup work with HTTP Polling Duplex arguably being the easiest to setup and get going.  In this article I’ll demonstrate how HTTP Polling Duplex can be used in Silverlight 4 applications to push data and show how you can create a WCF server that provides an HTTP Polling Duplex binding that a Silverlight client can consume.   What is HTTP Polling Duplex? Technologies that allow data to be pushed from a server to a client rely on duplex functionality. Duplex (or bi-directional) communication allows data to be passed in both directions.  A client can call a service and the server can call the client. HTTP Polling Duplex (as its name implies) allows a server to communicate with a client without forcing the client to constantly poll the server. It has the benefit of being able to run on port 80 making setup a breeze compared to the other options which require specific ports to be used and cross-domain policy files to be exposed on port 943 (as with sockets and TCP bindings). Having said that, if you’re looking for the best speed possible then sockets and TCP bindings are the way to go. But, they’re not the only game in town when it comes to duplex communication. The first time I heard about HTTP Polling Duplex (initially available in Silverlight 2) I wasn’t exactly sure how it was any better than standard polling used in AJAX applications. I read the Silverlight SDK, looked at various resources and generally found the following definition unhelpful as far as understanding the actual benefits that HTTP Polling Duplex provided: "The Silverlight client periodically polls the service on the network layer, and checks for any new messages that the service wants to send on the callback channel. The service queues all messages sent on the client callback channel and delivers them to the client when the client polls the service." Although the previous definition explained the overall process, it sounded as if standard polling was used. Fortunately, Microsoft’s Scott Guthrie provided me with a more clear definition several years back that explains the benefits provided by HTTP Polling Duplex quite well (used with his permission): "The [HTTP Polling Duplex] duplex support does use polling in the background to implement notifications – although the way it does it is different than manual polling. It initiates a network request, and then the request is effectively “put to sleep” waiting for the server to respond (it doesn’t come back immediately). The server then keeps the connection open but not active until it has something to send back (or the connection times out after 90 seconds – at which point the duplex client will connect again and wait). This way you are avoiding hitting the server repeatedly – but still get an immediate response when there is data to send." After hearing Scott’s definition the light bulb went on and it all made sense. A client makes a request to a server to check for changes, but instead of the request returning immediately, it parks itself on the server and waits for data. It’s kind of like waiting to pick up a pizza at the store. Instead of calling the store over and over to check the status, you sit in the store and wait until the pizza (the request data) is ready. Once it’s ready you take it back home (to the client). This technique provides a lot of efficiency gains over standard polling techniques even though it does use some polling of its own as a request is initially made from a client to a server. So how do you implement HTTP Polling Duplex in your Silverlight applications? Let’s take a look at the process by starting with the server. Creating an HTTP Polling Duplex WCF Service Creating a WCF service that exposes an HTTP Polling Duplex binding is straightforward as far as coding goes. Add some one way operations into an interface, create a client callback interface and you’re ready to go. The most challenging part comes into play when configuring the service to properly support the necessary binding and that’s more of a cut and paste operation once you know the configuration code to use. To create an HTTP Polling Duplex service you’ll need to expose server-side and client-side interfaces and reference the System.ServiceModel.PollingDuplex assembly (located at C:\Program Files (x86)\Microsoft SDKs\Silverlight\v4.0\Libraries\Server on my machine) in the server project. For the demo application I upgraded a basketball simulation service to support the latest polling duplex assemblies. The service simulates a simple basketball game using a Game class and pushes information about the game such as score, fouls, shots and more to the client as the game changes over time. Before jumping too far into the game push service, it’s important to discuss two interfaces used by the service to communicate in a bi-directional manner. The first is called IGameStreamService and defines the methods/operations that the client can call on the server (see Listing 1). The second is IGameStreamClient which defines the callback methods that a server can use to communicate with a client (see Listing 2).   [ServiceContract(Namespace = "Silverlight", CallbackContract = typeof(IGameStreamClient))] public interface IGameStreamService { [OperationContract(IsOneWay = true)] void GetTeamData(); } Listing 1. The IGameStreamService interface defines server operations that can be called on the server.   [ServiceContract] public interface IGameStreamClient { [OperationContract(IsOneWay = true)] void ReceiveTeamData(List<Team> teamData); [OperationContract(IsOneWay = true, AsyncPattern=true)] IAsyncResult BeginReceiveGameData(GameData gameData, AsyncCallback callback, object state); void EndReceiveGameData(IAsyncResult result); } Listing 2. The IGameStreamClient interfaces defines client operations that a server can call.   The IGameStreamService interface is decorated with the standard ServiceContract attribute but also contains a value for the CallbackContract property.  This property is used to define the interface that the client will expose (IGameStreamClient in this example) and use to receive data pushed from the service. Notice that each OperationContract attribute in both interfaces sets the IsOneWay property to true. This means that the operation can be called and passed data as appropriate, however, no data will be passed back. Instead, data will be pushed back to the client as it’s available.  Looking through the IGameStreamService interface you can see that the client can request team data whereas the IGameStreamClient interface allows team and game data to be received by the client. One interesting point about the IGameStreamClient interface is the inclusion of the AsyncPattern property on the BeginReceiveGameData operation. I initially created this operation as a standard one way operation and it worked most of the time. However, as I disconnected clients and reconnected new ones game data wasn’t being passed properly. After researching the problem more I realized that because the service could take up to 7 seconds to return game data, things were getting hung up. By setting the AsyncPattern property to true on the BeginReceivedGameData operation and providing a corresponding EndReceiveGameData operation I was able to get around this problem and get everything running properly. I’ll provide more details on the implementation of these two methods later in this post. Once the interfaces were created I moved on to the game service class. The first order of business was to create a class that implemented the IGameStreamService interface. Since the service can be used by multiple clients wanting game data I added the ServiceBehavior attribute to the class definition so that I could set its InstanceContextMode to InstanceContextMode.Single (in effect creating a Singleton service object). Listing 3 shows the game service class as well as its fields and constructor.   [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple, InstanceContextMode = InstanceContextMode.Single)] public class GameStreamService : IGameStreamService { object _Key = new object(); Game _Game = null; Timer _Timer = null; Random _Random = null; Dictionary<string, IGameStreamClient> _ClientCallbacks = new Dictionary<string, IGameStreamClient>(); static AsyncCallback _ReceiveGameDataCompleted = new AsyncCallback(ReceiveGameDataCompleted); public GameStreamService() { _Game = new Game(); _Timer = new Timer { Enabled = false, Interval = 2000, AutoReset = true }; _Timer.Elapsed += new ElapsedEventHandler(_Timer_Elapsed); _Timer.Start(); _Random = new Random(); }} Listing 3. The GameStreamService implements the IGameStreamService interface which defines a callback contract that allows the service class to push data back to the client. By implementing the IGameStreamService interface, GameStreamService must supply a GetTeamData() method which is responsible for supplying information about the teams that are playing as well as individual players.  GetTeamData() also acts as a client subscription method that tracks clients wanting to receive game data.  Listing 4 shows the GetTeamData() method. public void GetTeamData() { //Get client callback channel var context = OperationContext.Current; var sessionID = context.SessionId; var currClient = context.GetCallbackChannel<IGameStreamClient>(); context.Channel.Faulted += Disconnect; context.Channel.Closed += Disconnect; IGameStreamClient client; if (!_ClientCallbacks.TryGetValue(sessionID, out client)) { lock (_Key) { _ClientCallbacks[sessionID] = currClient; } } currClient.ReceiveTeamData(_Game.GetTeamData()); //Start timer which when fired sends updated score information to client if (!_Timer.Enabled) { _Timer.Enabled = true; } } Listing 4. The GetTeamData() method subscribes a given client to the game service and returns. The key the line of code in the GetTeamData() method is the call to GetCallbackChannel<IGameStreamClient>().  This method is responsible for accessing the calling client’s callback channel. The callback channel is defined by the IGameStreamClient interface shown earlier in Listing 2 and used by the server to communicate with the client. Before passing team data back to the client, GetTeamData() grabs the client’s session ID and checks if it already exists in the _ClientCallbacks dictionary object used to track clients wanting callbacks from the server. If the client doesn’t exist it adds it into the collection. It then pushes team data from the Game class back to the client by calling ReceiveTeamData().  Since the service simulates a basketball game, a timer is then started if it’s not already enabled which is then used to randomly send data to the client. When the timer fires, game data is pushed down to the client. Listing 5 shows the _Timer_Elapsed() method that is called when the timer fires as well as the SendGameData() method used to send data to the client. void _Timer_Elapsed(object sender, ElapsedEventArgs e) { int interval = _Random.Next(3000, 7000); lock (_Key) { _Timer.Interval = interval; _Timer.Enabled = false; } SendGameData(_Game.GetGameData()); } private void SendGameData(GameData gameData) { var cbs = _ClientCallbacks.Where(cb => ((IContextChannel)cb.Value).State == CommunicationState.Opened); for (int i = 0; i < cbs.Count(); i++) { var cb = cbs.ElementAt(i).Value; try { cb.BeginReceiveGameData(gameData, _ReceiveGameDataCompleted, cb); } catch (TimeoutException texp) { //Log timeout error } catch (CommunicationException cexp) { //Log communication error } } lock (_Key) _Timer.Enabled = true; } private static void ReceiveGameDataCompleted(IAsyncResult result) { try { ((IGameStreamClient)(result.AsyncState)).EndReceiveGameData(result); } catch (CommunicationException) { // empty } catch (TimeoutException) { // empty } } LIsting 5. _Timer_Elapsed is used to simulate time in a basketball game. When _Timer_Elapsed() fires the SendGameData() method is called which iterates through the clients wanting to be notified of changes. As each client is identified, their respective BeginReceiveGameData() method is called which ultimately pushes game data down to the client. Recall that this method was defined in the client callback interface named IGameStreamClient shown earlier in Listing 2. Notice that BeginReceiveGameData() accepts _ReceiveGameDataCompleted as its second parameter (an AsyncCallback delegate defined in the service class) and passes the client callback as the third parameter. The initial version of the sample application had a standard ReceiveGameData() method in the client callback interface. However, sometimes the client callbacks would work properly and sometimes they wouldn’t which was a little baffling at first glance. After some investigation I realized that I needed to implement an asynchronous pattern for client callbacks to work properly since 3 – 7 second delays are occurring as a result of the timer. Once I added the BeginReceiveGameData() and ReceiveGameDataCompleted() methods everything worked properly since each call was handled in an asynchronous manner. The final task that had to be completed to get the server working properly with HTTP Polling Duplex was adding configuration code into web.config. In the interest of brevity I won’t post all of the code here since the sample application includes everything you need. However, Listing 6 shows the key configuration code to handle creating a custom binding named pollingDuplexBinding and associate it with the service’s endpoint.   <bindings> <customBinding> <binding name="pollingDuplexBinding"> <binaryMessageEncoding /> <pollingDuplex maxPendingSessions="2147483647" maxPendingMessagesPerSession="2147483647" inactivityTimeout="02:00:00" serverPollTimeout="00:05:00"/> <httpTransport /> </binding> </customBinding> </bindings> <services> <service name="GameService.GameStreamService" behaviorConfiguration="GameStreamServiceBehavior"> <endpoint address="" binding="customBinding" bindingConfiguration="pollingDuplexBinding" contract="GameService.IGameStreamService"/> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> </services>   Listing 6. Configuring an HTTP Polling Duplex binding in web.config and associating an endpoint with it. Calling the Service and Receiving “Pushed” Data Calling the service and handling data that is pushed from the server is a simple and straightforward process in Silverlight. Since the service is configured with a MEX endpoint and exposes a WSDL file, you can right-click on the Silverlight project and select the standard Add Service Reference item. After the web service proxy is created you may notice that the ServiceReferences.ClientConfig file only contains an empty configuration element instead of the normal configuration elements created when creating a standard WCF proxy. You can certainly update the file if you want to read from it at runtime but for the sample application I fed the service URI directly to the service proxy as shown next: var address = new EndpointAddress("http://localhost.:5661/GameStreamService.svc"); var binding = new PollingDuplexHttpBinding(); _Proxy = new GameStreamServiceClient(binding, address); _Proxy.ReceiveTeamDataReceived += _Proxy_ReceiveTeamDataReceived; _Proxy.ReceiveGameDataReceived += _Proxy_ReceiveGameDataReceived; _Proxy.GetTeamDataAsync(); This code creates the proxy and passes the endpoint address and binding to use to its constructor. It then wires the different receive events to callback methods and calls GetTeamDataAsync().  Calling GetTeamDataAsync() causes the server to store the client in the server-side dictionary collection mentioned earlier so that it can receive data that is pushed.  As the server-side timer fires and game data is pushed to the client, the user interface is updated as shown in Listing 7. Listing 8 shows the _Proxy_ReceiveGameDataReceived() method responsible for handling the data and calling UpdateGameData() to process it.   Listing 7. The Silverlight interface. Game data is pushed from the server to the client using HTTP Polling Duplex. void _Proxy_ReceiveGameDataReceived(object sender, ReceiveGameDataReceivedEventArgs e) { UpdateGameData(e.gameData); } private void UpdateGameData(GameData gameData) { //Update Score this.tbTeam1Score.Text = gameData.Team1Score.ToString(); this.tbTeam2Score.Text = gameData.Team2Score.ToString(); //Update ball visibility if (gameData.Action != ActionsEnum.Foul) { if (tbTeam1.Text == gameData.TeamOnOffense) { AnimateBall(this.BB1, this.BB2); } else //Team 2 { AnimateBall(this.BB2, this.BB1); } } if (this.lbActions.Items.Count > 9) this.lbActions.Items.Clear(); this.lbActions.Items.Add(gameData.LastAction); if (this.lbActions.Visibility == Visibility.Collapsed) this.lbActions.Visibility = Visibility.Visible; } private void AnimateBall(Image onBall, Image offBall) { this.FadeIn.Stop(); Storyboard.SetTarget(this.FadeInAnimation, onBall); Storyboard.SetTarget(this.FadeOutAnimation, offBall); this.FadeIn.Begin(); } Listing 8. As the server pushes game data, the client’s _Proxy_ReceiveGameDataReceived() method is called to process the data. In a real-life application I’d go with a ViewModel class to handle retrieving team data, setup data bindings and handle data that is pushed from the server. However, for the sample application I wanted to focus on HTTP Polling Duplex and keep things as simple as possible.   Summary Silverlight supports three options when duplex communication is required in an application including TCP bindins, sockets and HTTP Polling Duplex. In this post you’ve seen how HTTP Polling Duplex interfaces can be created and implemented on the server as well as how they can be consumed by a Silverlight client. HTTP Polling Duplex provides a nice way to “push” data from a server while still allowing the data to flow over port 80 or another port of your choice.   Sample Application Download

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  • WCF configuration for WebHttpBinding(Restful) for supporting both HTTP and HTTPS

    - by KSS
    We are using AJAX Cascading dropdown and AutoComplete functionality with Restful WebService Services providing data. With one endpoint(non-secured) eveything was working fine, until we tried same web page with https. Our Webappplication needs to support both. Our of very few articiles/blogs on this issue I found 2 which applies to my requirements. 1. http://blog.abstractlabs.net/2009/02/ajax-wcf-services-and-httphttps.html 2. _http://www.mydotnetworld.com/post/2008/10/18/Use-a-WCF-Service-with-HTTP-and-HTTPS-in-C.aspx I followed same pattern, added 2 endpoints, assuming WCF will pickup appropriate endpoint looking at HTTP or HTTPS protocol. Worked like a charm in my dev machine(XP-IIS5) and 1 Server 2003R2(IIS6), however did work in Production server 2003-IIS6. Website in IIS is exact same(including permission etc). The error it throws - Error 500(Could not find a base address that matches scheme https for the endpoint with binding WebHttpBinding. Registered base address schemes are [http]..) Here's the sample configuration(ignore typos) <system.serviceModel> <bindings> <webHttpBinding> <binding name="SecureBinding"> <security mode="Transport"/> </binding> </webHttpBinding> </bindings> <behaviors> <endpointBehaviors> <behavior name="SearchServiceAspNetAjaxBehavior"> <enableWebScript /> </behavior> </endpointBehaviors> </behaviors> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> <services> <service name="SearchService"> <endpoint address="" behaviorConfiguration="SearchServiceAspNetAjaxBehavior" binding="webHttpBinding" contract="SearchServiceContract" /> <endpoint address="" behaviorConfiguration="SearchServiceAspNetAjaxBehavior" binding="webHttpBinding" bindingConfiguration="SecureBinding" contract="SearchServiceContract" /> </service> </services> </system.serviceModel> Any help on this is highly appreciated ? Thanks KSS

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  • Need help implementing an Android service that does http long polling

    - by Erdal
    I've seen persistent TCP connections implemented (http://devtcg.blogspot.com/2009/01/push-services-implementing-persistent.html), but my needs are a little different. I need an Android service that always runs in the background and keeps a long polling connection to an HTTP server and communicates with it using JSON over POST method. Does anyone have anything similar to this?

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  • Should a HTTP POST'ed file be base64 encoded?

    - by andybee
    I'm currently implementing a client application that POST's a file over HTTP and have implemented base64 encoding on the file's data parameter. However, it appears that when inspecting the traffic between a simple HTML page with a file upload form and the server that no Content-Transfer-Encoding header is sent in the body when describing the file's parameter. Is this the preferred way of POST'ing a file over HTTP?

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  • determining HTTP packets

    - by Eyla
    Greeting, how is possible to determine from captured packets using sharppcap if the packet is http packet or not? and can we determine frpm TCP packets if the packet is HTTP or not?

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  • Using HTTP Pipelining with Jetty HTTPClient

    - by jrogi
    I'm trying to figure out how to use HTTPClient (org.eclipse.jetty.client.HttpClient) so it will pipeline HTTP Request. I've tried to create some HttpExchange instances and applying the send() method for each, in an asynchronous mode, but each HTTP request has waited for it response before the next request was sent. Can you please supply a code snippet for this case?

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  • install remote desktop in a PC with FTP and HTTP access

    - by cmpscabral
    Hi, I have a machine behind a firewall to which I have only FTP and HTTP access - is there any remote desktop software available that I can install over FTP and access over HTTP (java based perhaps)? The reason I'm asking is because ultraVNC stopped working for no reason and I need to access the PC (it has installed windows 7 with UAC disabled). thanks

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