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• Are HTTP requests cached? [closed]

  - by nischayn22

  Many HTTP requests are sent repeatedly by browsers on almost every page load, such as requesting the jQuery .js file etc. Since these are already used on too many sites doesn't modern browsers keep a cache for this? I am thinking of a system where the browser has a cached copy of the .js file used very very frequently. On a new request for the .js file, it sends the server a request for a hash of the .js file (provided the server can reply to that) and compares the returned hash with the cached copy's hash... rest is intuitive.

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• Should HTTP Verbs Be Used Semantically?

  - by Xophmeister

  If I'm making a web application which integrates with a server-side backend, would it be considered best practice to use HTTP methods semantically? That is, for example, if I'm fetching data (e.g., to populate a menu, etc.), I would use GET, but to update data (e.g., save a record), I would use POST. (I realise there are other methods that may be even more appropriate, but we need to consider browser support.) I can see the benefits of this in the sense that it's effectively a RESTful API, but at a slightly increased development cost. In my previous projects, I've POST'd everything: Is it worth switching to a RESTful mindset simply for the sake of best practice?

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• Parser, send an argument/receive xml (receive already done/ send not)

  - by bruno

  public List<Afood> getFoodFromCat(String cat) { String resultado = ""; List<Afood> list = new ArrayList<Afood>(); try { URL xpto = new URL("http://10.0.2.2/webservice/nutrituga/get_food_by_cat.php"); HttpURLConnection conn; conn = (HttpURLConnection) xpto.openConnection(); conn.setDoInput(true); conn.connect(); InputStream is = conn.getInputStream(); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); try { DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.parse(is); NodeList nl = doc.getElementsByTagName("item"); // resultado = String.valueOf(nl.getLength()); for (int i = 0; i < nl.getLength(); i++) { Node n = nl.item(i); Node childNode = n.getFirstChild(); while (childNode != null) { if (childNode.getNodeType() == Node.ELEMENT_NODE) { if (childNode.getNodeName().equalsIgnoreCase( "NAME_FOOD")) { Node valor = childNode.getFirstChild(); // resultado = resultado + valor.getNodeValue(); list.add(new Afood(valor.getNodeValue(), "", (int) Math.round(Math.random()), 1, 1, 1, 1, 1, 1)); } } childNode = childNode.getNextSibling(); } } return list; } catch (ParserConfigurationException e1) { e1.printStackTrace(); } catch (SAXException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return list; } I have this function that receives a xml and copy it to the list. This is well implemented. What i want do to know, is to send a category (that i receive like an argument of the function) and receive only the food from that category. The server is ready to receive the category and to send the food from that category. What do i have to do to send the category and receive the correct xml?

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• When to use http status code 404

  - by Sybiam

  I am working on a project and after arguing with people at work for about more than a hour. I decided to know what people on stack-exchange might say. We're writing an API for a system, there is a query that should return a tree of Organization or a tree of Goals. The tree of Organization is the organization in which the user is present, In other words, this tree should always exists. In the organization, a tree of goal should be always present. (that's where the argument started). In case where the tree doesn't exist, my co-worker decided that it would be right to answer response with status code 200. And then started asking me to fix my code because the application was falling apart when there is no tree. I'll try to spare flames and fury. I suggested to raise a 404 error when there is no tree. It would at least let me know that something is wrong. When using 200, I have to add special check to my response in the success callback to handle errors. I'm expecting to receive an object, but I may actually receive an empty response because nothing is found. It sounds totally fair to mark the response as a 404. And then war started and I got the message that I didn't understand HTTP status code schema. So I'm here and asking what's wrong with 404 in this case? I even got the argument "It found nothing, so it's right to return 200". I believe that it's wrong since the tree should be always present. If we found nothing and we are expecting something, it should be a 404. Extra Also, I believe the best answer to the problem is to create default objects when organizations are created, having no tree shouldn't be a valid case and should be seen as an undefined behavior. There is no way an account can be used without both trees. For that reasons, they should be always present.

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• Suggested HTTP REST status code for 'request limit reached'

  - by Andras Zoltan

  I'm putting together a spec for a REST service, part of which will incorporate the ability to throttle users service-wide and on groups of, or on individual, resources. Equally, time-outs for these would be configurable per resource/group/service. I'm just looking through the HTTP 1.1 spec and trying to decide how I will communicate to a client that a request will not be fulfilled because they've reached their limit. Initially I figured that client code 403 - Forbidden was the one, but this, from the spec: Authorization will not help and the request SHOULD NOT be repeated bothered me. It actually appears that 503 - Service Unavailable is a better one to use - since it allows for the communication of a retry time through the use of the Retry-After header. It's possible that in the future I might look to support 'purchasing' more requests via eCommerce (in which case it would be nice if client code 402 - Payment Required had been finalized!) - but I figure that this could equally be squeezed into a 503 response too. Which do you think I should use? Or is there another I've not considered?

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• Browser privacy improvement implications for websites

  - by phq

  On https://panopticlick.eff.org/ EFF let you test the number of uniquely identifying bits that the browser gives a website. Among these are HTTP header fields such as User-Agent, Accept, Accept-Language and later perhaps ETAG and If-Modified-Since. Also there is a lot of Information that javascript can get from the browser such as time-zone, screen resolution, complete list of fonts and plugins available. My first impression is, is all this information really usable/used on a majority of all websites? For example, how many sites does really send different content-types depending on the http accept header, or what fonts are available(I thought css had taken care of this)? Let's say of these headers/js functionality on day would be gone. Which ones would; never be noticed they were gone? impact user experience? impact server performance? immediately reimplemented because the Internet cannot work without it? Extra credit for differentiating between what can be done, what should be done and what is done in most situations.

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• What is the HTTP_PROFILE browser header and how is it used?

  - by Tom

  I've just come across the HTTP_PROFILE header that seems to be used by mobile browsers to point to an .xml document describing the device's capabilities. Doing a Google search doesn't turn up any definitive resources on what this is and how it should be used, can anyone point me to something along the lines of a spec/W3C standard?

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• How to redirect http requests to http (nginx)

  - by spuder

  There appear to be many questions and guides out there that instruct how to setup nginx to redirect http requests to https. Many are outdated, or just flat out wrong. server { listen *:80; server_name <%= @fqdn %>; #root /nowhere; #rewrite ^ https://$server_name$request_uri? permanent; #rewrite ^ https://$server_name$request_uri permanent; #return 301 https://$server_name$request_uri; #return 301 http://$server_name$request_uri; #return 301 http://192.168.33.10$request_uri; return 301 http://$host$request_uri; } server { listen *:443 ssl default_server; server_name <%= @fqdn %>; server_tokens off; root <%= @git_home %>/gitlab/public; ssl on; ssl_certificate <%= @gitlab_ssl_cert %>; ssl_certificate_key <%= @gitlab_ssl_key %>; ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2; ssl_ciphers AES:HIGH:!ADH:!MDF; ssl_prefer_server_ciphers on; location / { # serve static files from defined root folder;. # @gitlab is a named location for the upstream fallback, see below try_files $uri $uri/index.html $uri.html @gitlab; } # if a file, which is not found in the root folder is requested, # then the proxy pass the request to the upsteam (gitlab puma) location @gitlab { proxy_read_timeout 300; # https://github.com/gitlabhq/gitlabhq/issues/694 proxy_connect_timeout 300; # https://github.com/gitlabhq/gitlabhq/issues/694 proxy_redirect off; ect.... I've restarted after every configuration change, and yet I still only get the 'Welcome to nginx' page when visiting http://192.168.33.10. whereas https://192.168.33.10 works perfectly. Why will nginx still not redirect http requests to https? tailf /var/log/nginx/access.log 192.168.33.1 - - [22/Oct/2013:03:41:39 +0000] "GET / HTTP/1.1" 304 0 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0" 192.168.33.1 - - [22/Oct/2013:03:44:43 +0000] "GET / HTTP/1.1" 200 133 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0" tailf /var/log/nginx/gitlab_error.lob 2013/10/22 02:29:14 [crit] 27226#0: *1 connect() to unix:/home/git/gitlab/tmp/sockets/gitlab.socket failed (2: No such file or directory) while connecting to upstream, client: 192.168.33.1, server: gitlab.localdomain, request: "GET / HTTP/1.1", upstream: "http://unix:/home/git/gitlab/tmp/sockets/gitlab.socket:/", host: "192.168.33.10" Resources http://wiki.nginx.org/Pitfalls How to make nginx redirect How to force or redirect to SSL in nginx? nginx ssl redirect Nginx & Https Redirection https://www.tinywp.in/301-redirect-wordpress/ How to force or redirect to SSL in nginx?

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• HTTP Content-type header for cached files

  - by Brian

  Hello, Using Apache with mod_rewrite, when I load a .css or .js file and view the HTTP headers, the Content-type is only set correctly the first time I load it - subsequent refreshes are missing Content-type altogether and it's creating some problems for me. Specifically, gzip is not compressing these files. I can get around this by appending a random query string value to the end of each filename, eg. http://www.site.com/script.js?12345 However, I don't want to have to do that, since caching is good and all I want is for the Content-type to be present. I've tried using a RewriteRule to force the type but still didn't solve the problem. Any ideas? Thanks, Brian More Details: HTTP headers WITHOUT random query string value: http://localhost/script.js GET /script.js HTTP/1.1 Host: localhost User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 Accept: */* Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive Referer: http://localhost/ Cookie: PHPSESSID=ke3p35v5qbus24che765p9jni5; If-Modified-Since: Thu, 29 Apr 2010 15:49:56 GMT If-None-Match: "3440e9-119ed-485621404f100" Cache-Control: max-age=0 HTTP/1.1 304 Not Modified Date: Thu, 29 Apr 2010 20:19:44 GMT Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 PHP/5.3.1 Connection: Keep-Alive Keep-Alive: timeout=5, max=100 Etag: "3440e9-119ed-485621404f100" Vary: Accept-Encoding X-Pad: avoid browser bug HTTP headers WITH random query string value: http://localhost/script.js?c947344de8278053f6edbb4365550b25 GET /script.js?c947344de8278053f6edbb4365550b25 HTTP/1.1 Host: localhost User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 Accept: */* Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive Referer: http://localhost/ Cookie: PHPSESSID=ke3p35v5qbus24che765p9jni5; HTTP/1.1 200 OK Date: Thu, 29 Apr 2010 20:14:40 GMT Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 PHP/5.3.1 Last-Modified: Thu, 29 Apr 2010 15:49:56 GMT Etag: "3440e9-119ed-485621404f100" Accept-Ranges: bytes Vary: Accept-Encoding Content-Encoding: gzip Content-Length: 24605 Keep-Alive: timeout=5, max=100 Connection: Keep-Alive Content-Type: application/javascript

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• How do you send a HEAD HTTP request in Python?

  - by fuentesjr

  So what I'm trying to do here is get the headers of a given URL so I can determine the mime-type. I want to be able to see if http://somedomain/foo/ will return an html document or a jpg image for example. Thus, I need to figure out how to send a HEAD request so that I can read the mime-type without having to download the content. Does anyone know of an easy way of doing this?

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• Inline code within HEAD section of ASP Web Form

  - by geekrutherford

  Today I needed to include inline code within the HEAD section of an Web Form in order to dynamically include stylesheets based on the theme set for the application.   Below is an example:      <link href="../../Resources/Themes/<% = Page.Theme %>Grid.Default.css" rel="stylesheet" type="text/css">   Upon saving and viewing the page I noted that the code was not being interpreted and instead was being treated as a string literal.  How to get around it?  Add a panel control in the HEAD section and place the links to the stylesheets as in the example above within the panel.  For whatever reason, ASP.NET does not want to interpret inline code in the HEAD section but will allow you to add .NET controls in the HEAD section.

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• On a queue, which end is the "head"?

  - by Aidan Cully

  I had always thought that the "head" of a queue as the next element to be read, and never really questioned that usage. So a linked-list library I wrote, which is used for maintaining queues, codified that terminology: we have a list1_head macro that retrieves the first element; when using this library in a queue, this will be the first element to be removed. But a new developer on the team was used to having queues implemented the other way around. He described a queue as behaving like a dog: you insert at the head, and remove at the tail. This is a clever enough description that I feel like his usage must be more widespread, and I don't have a similarly evocative description of my preferred usage. So, I guess, there are two related questions: 1, what does the "head" of a queue mean to you? and 2, why do we use the word "head" to describe that concept?

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• Http handler for classic ASP application for introducing a layer between client and server

  - by JPReddy

  I've a huge classic ASP application where in thousands of users manage their company/business data. Currently this is not multi-user so that application users can create users and authorize them to access certain areas in the system. I'm thinking of writing a handler which will act as middle man between client and server and go through every request and find out who the user is and whether he is authorized to access the data he is trying to. For the moment ignore about the part how I'm going to check the authorization and all that stuff. Just want to know whether I can implement a ASP.net handler and use it as middle man for the requests coming for a asp website? I just want to read the url and see what is the page user is trying to access and what are the parameters he is passing in the url the posted data. Is this possible? I read that Asp.net handler cannot be used with asp website and I need to use isapi filter or extensions for that and that can be developed only c/c++. Can anybody through some light on this and guide me whether I'm in the right direction or not?

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• http request terminating early

  - by spiderplant0

  I noticed that on some of my sites, images were occasionally not getting downloaded fully. After a bit of investigation it appears that it is not restricted to images - .css, .js etc were also occasionally terminating early. The faults appear to be random. When I use the debug/proxy tool Fiddler2 reports that fewer bytes have been received than were requested. Firebug reports "Image corrupt or truncated". Obviously this is mainly a concern between me and my hosting company. However despite many emails they have not been able to get to the bottom of it. Transfer to another hosting company is obviously an option but is really a last resort. Has anyone seen this kind of thing before or can anyone suggest what might be causing it. Or any apache setting or something that I can ask them to check out. Will apache log this kind of error - they havent been able to provide me with any logs, but if I know exactly where things have been logged, maybe I can prompt them in to action.

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• HTTP PHP Authentication and Android

  - by edc598

  I am working on a website for which I hope to have an application for as well. Because of this, I am creating PHP API's which will go into my Database and serve specific data based on the method/function called. I want to protect these API's from misuse however, and I plan on implementing Authentication Digest to do so. However one of the OS's I want to support is Android. And I know that a malicious user would be able to reverse engineer the Android app and figure out my authentication scheme. I am left wondering: 1. Is there a better way to protect these API's from misuse? 2. Is there a way to prevent a malicious user from reverse engineering the app and potentially seeing the source code for it, enabling them to see my authentication scheme? 3. If none of these are preventable, then is my only option to have a Username/Password cred specifically for the Android app, and when eventually hacked, change the creds and issue an update for the app? I apologize if this is not the place to post such a question. Still pretty new to StackOverflow. Thanks in advance for any insight, it would be quite helpful.

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• What is correct HTTP status code when redirecting to a login page?

  - by PHP_Jedi

  When a user is not logged in and tries to access an page that requires login, what is the correct HTTP status code for a redirect to the login page? I don't feel that any of the 3xx fit that description. 10.3.1 300 Multiple Choices The requested resource corresponds to any one of a set of representations, each with its own specific location, and agent- driven negotiation information (section 12) is being provided so that the user (or user agent) can select a preferred representation and redirect its request to that location. Unless it was a HEAD request, the response SHOULD include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose the one most appropriate. The entity format is specified by the media type given in the Content- Type header field. Depending upon the format and the capabilities of the user agent, selection of the most appropriate choice MAY be performed automatically. However, this specification does not define any standard for such automatic selection. If the server has a preferred choice of representation, it SHOULD include the specific URI for that representation in the Location field; user agents MAY use the Location field value for automatic redirection. This response is cacheable unless indicated otherwise. 10.3.2 301 Moved Permanently The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI to one or more of the new references returned by the server, where possible. This response is cacheable unless indicated otherwise. The new permanent URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). If the 301 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. Note: When automatically redirecting a POST request after receiving a 301 status code, some existing HTTP/1.0 user agents will erroneously change it into a GET request. 10.3.3 302 Found The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field. The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). If the 302 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. Note: RFC 1945 and RFC 2068 specify that the client is not allowed to change the method on the redirected request. However, most existing user agent implementations treat 302 as if it were a 303 response, performing a GET on the Location field-value regardless of the original request method. The status codes 303 and 307 have been added for servers that wish to make unambiguously clear which kind of reaction is expected of the client. 10.3.4 303 See Other The response to the request can be found under a different URI and SHOULD be retrieved using a GET method on that resource. This method exists primarily to allow the output of a POST-activated script to redirect the user agent to a selected resource. The new URI is not a substitute reference for the originally requested resource. The 303 response MUST NOT be cached, but the response to the second (redirected) request might be cacheable. The different URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). Note: Many pre-HTTP/1.1 user agents do not understand the 303 status. When interoperability with such clients is a concern, the 302 status code may be used instead, since most user agents react to a 302 response as described here for 303. 10.3.5 304 Not Modified If the client has performed a conditional GET request and access is allowed, but the document has not been modified, the server SHOULD respond with this status code. The 304 response MUST NOT contain a message-body, and thus is always terminated by the first empty line after the header fields. The response MUST include the following header fields: - Date, unless its omission is required by section 14.18.1 If a clockless origin server obeys these rules, and proxies and clients add their own Date to any response received without one (as already specified by [RFC 2068], section 14.19), caches will operate correctly. - ETag and/or Content-Location, if the header would have been sent in a 200 response to the same request - Expires, Cache-Control, and/or Vary, if the field-value might differ from that sent in any previous response for the same variant If the conditional GET used a strong cache validator (see section 13.3.3), the response SHOULD NOT include other entity-headers. Otherwise (i.e., the conditional GET used a weak validator), the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers. If a 304 response indicates an entity not currently cached, then the cache MUST disregard the response and repeat the request without the conditional. If a cache uses a received 304 response to update a cache entry, the cache MUST update the entry to reflect any new field values given in the response. 10.3.6 305 Use Proxy The requested resource MUST be accessed through the proxy given by the Location field. The Location field gives the URI of the proxy. The recipient is expected to repeat this single request via the proxy. 305 responses MUST only be generated by origin servers. Note: RFC 2068 was not clear that 305 was intended to redirect a single request, and to be generated by origin servers only. Not observing these limitations has significant security consequences. 10.3.7 306 (Unused) The 306 status code was used in a previous version of the specification, is no longer used, and the code is reserved. 10.3.8 307 Temporary Redirect The requested resource resides temporarily under a different URI. Since the redirection MAY be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field. The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s) , since many pre-HTTP/1.1 user agents do not understand the 307 status. Therefore, the note SHOULD contain the information necessary for a user to repeat the original request on the new URI. If the 307 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. I'm using 302 for now, until I find THE correct answer.

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• HTTP crawler in Erlang

  - by ctp

  I'm coding on a simple HTTP crawler but I have an issue running the code at the bottom. I'm requesting 50 URLs and get the content of 20+ back. I've generated few files with 150kB size each to test the crawler. So I think the 20+ responses are limited by the bandwidth? BUT: how to tell the Erlang snippet not to quit until the last file is not fetched? The test data server is online, so plz try the code out and any hints are welcome :) -module(crawler). -define(BASE_URL, "http://46.4.117.69/"). -export([start/0, send_reqs/0, do_send_req/1]). start() -> ibrowse:start(), proc_lib:spawn(?MODULE, send_reqs, []). to_url(Id) -> ?BASE_URL ++ integer_to_list(Id). fetch_ids() -> lists:seq(1, 50). send_reqs() -> spawn_workers(fetch_ids()). spawn_workers(Ids) -> lists:foreach(fun do_spawn/1, Ids). do_spawn(Id) -> proc_lib:spawn_link(?MODULE, do_send_req, [Id]). do_send_req(Id) -> io:format("Requesting ID ~p ... ~n", [Id]), Result = (catch ibrowse:send_req(to_url(Id), [], get, [], [], 10000)), case Result of {ok, Status, _H, B} -> io:format("OK -- ID: ~2..0w -- Status: ~p -- Content length: ~p~n", [Id, Status, length(B)]); Err -> io:format("ERROR -- ID: ~p -- Error: ~p~n", [Id, Err]) end. That's the output: Requesting ID 1 ... Requesting ID 2 ... Requesting ID 3 ... Requesting ID 4 ... Requesting ID 5 ... Requesting ID 6 ... Requesting ID 7 ... Requesting ID 8 ... Requesting ID 9 ... Requesting ID 10 ... Requesting ID 11 ... Requesting ID 12 ... Requesting ID 13 ... Requesting ID 14 ... Requesting ID 15 ... Requesting ID 16 ... Requesting ID 17 ... Requesting ID 18 ... Requesting ID 19 ... Requesting ID 20 ... Requesting ID 21 ... Requesting ID 22 ... Requesting ID 23 ... Requesting ID 24 ... Requesting ID 25 ... Requesting ID 26 ... Requesting ID 27 ... Requesting ID 28 ... Requesting ID 29 ... Requesting ID 30 ... Requesting ID 31 ... Requesting ID 32 ... Requesting ID 33 ... Requesting ID 34 ... Requesting ID 35 ... Requesting ID 36 ... Requesting ID 37 ... Requesting ID 38 ... Requesting ID 39 ... Requesting ID 40 ... Requesting ID 41 ... Requesting ID 42 ... Requesting ID 43 ... Requesting ID 44 ... Requesting ID 45 ... Requesting ID 46 ... Requesting ID 47 ... Requesting ID 48 ... Requesting ID 49 ... Requesting ID 50 ... OK -- ID: 49 -- Status: "200" -- Content length: 150000 OK -- ID: 47 -- Status: "200" -- Content length: 150000 OK -- ID: 50 -- Status: "200" -- Content length: 150000 OK -- ID: 17 -- Status: "200" -- Content length: 150000 OK -- ID: 48 -- Status: "200" -- Content length: 150000 OK -- ID: 45 -- Status: "200" -- Content length: 150000 OK -- ID: 46 -- Status: "200" -- Content length: 150000 OK -- ID: 10 -- Status: "200" -- Content length: 150000 OK -- ID: 09 -- Status: "200" -- Content length: 150000 OK -- ID: 19 -- Status: "200" -- Content length: 150000 OK -- ID: 13 -- Status: "200" -- Content length: 150000 OK -- ID: 21 -- Status: "200" -- Content length: 150000 OK -- ID: 16 -- Status: "200" -- Content length: 150000 OK -- ID: 27 -- Status: "200" -- Content length: 150000 OK -- ID: 03 -- Status: "200" -- Content length: 150000 OK -- ID: 23 -- Status: "200" -- Content length: 150000 OK -- ID: 29 -- Status: "200" -- Content length: 150000 OK -- ID: 14 -- Status: "200" -- Content length: 150000 OK -- ID: 18 -- Status: "200" -- Content length: 150000 OK -- ID: 01 -- Status: "200" -- Content length: 150000 OK -- ID: 30 -- Status: "200" -- Content length: 150000 OK -- ID: 40 -- Status: "200" -- Content length: 150000 OK -- ID: 05 -- Status: "200" -- Content length: 150000 Update: thanks stemm for the hint with the wait_workers. I've combined your and mine code but same behaviour :( -module(crawler). -define(BASE_URL, "http://46.4.117.69/"). -export([start/0, send_reqs/0, do_send_req/2]). start() -> ibrowse:start(), proc_lib:spawn(?MODULE, send_reqs, []). to_url(Id) -> ?BASE_URL ++ integer_to_list(Id). fetch_ids() -> lists:seq(1, 50). send_reqs() -> spawn_workers(fetch_ids()). spawn_workers(Ids) -> %% collect reference to each worker Refs = [ do_spawn(Id) || Id <- Ids ], %% wait for response from each worker wait_workers(Refs). wait_workers(Refs) -> lists:foreach(fun receive_by_ref/1, Refs). receive_by_ref(Ref) -> %% receive message only from worker with specific reference receive {Ref, done} -> done end. do_spawn(Id) -> Ref = make_ref(), proc_lib:spawn_link(?MODULE, do_send_req, [Id, {self(), Ref}]), Ref. do_send_req(Id, {Pid, Ref}) -> io:format("Requesting ID ~p ... ~n", [Id]), Result = (catch ibrowse:send_req(to_url(Id), [], get, [], [], 10000)), case Result of {ok, Status, _H, B} -> io:format("OK -- ID: ~2..0w -- Status: ~p -- Content length: ~p~n", [Id, Status, length(B)]), %% send message that work is done Pid ! {Ref, done}; Err -> io:format("ERROR -- ID: ~p -- Error: ~p~n", [Id, Err]), %% repeat request if there was error while fetching a page, do_send_req(Id, {Pid, Ref}) %% or - if you don't want to repeat request, put there: %% Pid ! {Ref, done} end. Running the crawler forks fine for a handful of files, but then the code even doesnt fetch the entire files (file size each 150000 bytes) - he crawler fetches some files partially, see the following web server log :( 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /10 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /1 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /3 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /8 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /39 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /7 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /6 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /2 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /5 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /50 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /9 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /44 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /38 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /47 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /49 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /43 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /37 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /46 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /48 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:00 +0200] "GET /36 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /42 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /41 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /45 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /17 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /35 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /16 HTTP/1.1" 200 150000 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /15 HTTP/1.1" 200 17020 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /21 HTTP/1.1" 200 120360 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /40 HTTP/1.1" 200 117600 "-" "-" 82.114.62.14 - - [13/Sep/2012:15:17:01 +0200] "GET /34 HTTP/1.1" 200 60660 "-" "-" Any hints are welcome. I have no clue what's going wrong there :(

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• Redirects in RoR: Which one to use out of redirect_to and head :moved_permanently?

  - by scrr

  Hello, we are making a website that takes a generated incoming link and forwards the user who is clicking on it to another website while saving a record of the action in our DB. I guess it's basically what ad-services like AdSense do. However, what is the best way to redirect the user? I think html-meta-tag-redirects are out of question. So what other options are there? head :moved_permanently, :location => "http://www.domain.com/" This one is a 301-redirect. The next one is a 302: redirect_to "http://www.domain.com" Are there any others? And which is best to use for our case? The links are highly-dynamic and change all the time. We want to make sure we don't violate any existing standards and of course we don't want search-engines to tag us as spammers (which we are not, btw). Thanks!

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• EPM and Business Analytics Talking-head Videos from Oracle OpenWorld 2013

  - by Mike.Hallett(at)Oracle-BI&EPM

  Normal 0 false false false EN-GB X-NONE X-NONE Here is a selection of 2 to 3 minute video interviews at this year’s Oracle OpenWorld: 1. George Somogyi, Solutions Architect, New Edge Group, talks about the importance of having their integrated Oracle Hyperion Platform consisting of Oracle Hyperion Financial Management, Oracle Hyperion Financial Data Quality Management, Oracle E-Business Suite R12 and Oracle Business Intelligence Extended Edition plus their use of Oracle Managed Cloud Services. Speaker: George Somogyi @ http://youtu.be/kWn0dQxCUy8 2. Gregg Thompson, Director of Financial Systems for ADT, talks about using Oracle Data Relationship Management prior to implementing an Enterprise Performance Management solution. Gregg confirmed that there are big benefits to bringing the full Oracle Hyperion Financial Close suite online with Oracle DRM as the metadata source. Reduced maintenance time and use of external consultants translates into significant time and cost savings and faster implementation times. Speaker: Gregg Thompson @ http://youtu.be/XnFrR9Uk4xk 3. Jeff Spangler, Director Financial Planning and Analysis for Speedy Cash Holdings Corp, talked to us about the benefits achieved through implementing Oracle Hyperion Planning and financial reporting solutions. He also describes how the use of Data Relationship Management will keep the process running smoothly now and in the future. Speaker: Jeff Spangler @ http://youtu.be/kkkuMkgJ22U 4. Marc Seewald, Senior Director of Product Management for Oracle Hyperion Tax Provision at Oracle, talks about Oracle Hyperion Tax Provision, how it is an integral part of the financial close process and that it provides better internal controls and automation of this task. Marc talks about Oracle Partners and customers alike who are seeing great value. Speaker: Marc Seewald @ http://youtu.be/lM_nfvACGuA 5. Matt Bradley, SVP of Product Development for Enterprise Performance Management (EPM) Applications at Oracle, talked to us about different deployment options for Oracle EPM. Cloud services (SaaS), managed services, on-premise, off-premise all have their merits, and organizations need flexibility to easily move between them as their companies evolve. Speaker: Matt Bradley @ http://youtu.be/ATO7Z9dbE-o 6. Neil Sellers, Partner, Qubix International talks about their experience with previewing Oracle’s new Planning and Budgeting Cloud Service. He describes the benefits of the step-by-step task lists, the speed of getting the application up and running, and the huge benefits of not having to manage the software and hardware side of the planning process. Speaker: Neil Sellers @ http://youtu.be/xmosO28e4_I 7. Praveen Pasupuleti, Senior Business Intelligence Development Manager of Citrix Systems Inc., talks about their Oracle Hyperion Planning upgrade and the huge performance improvement now experienced in forecasting. He also talked about the benefits of Oracle Hyperion Workforce Planning achieved by Citrix. Speaker: Praveen Pasupuleti @ http://youtu.be/d1e_4hLqw8c 8. CheckPoint Consulting, talked to us about how Enterprise Performance Management should be viewed as an entire solution, rather than as a bunch of applications in silos, to provide significant benefits; and how Data Relationship Management can tie it all together effectively. Speaker: Ron Dimon @ http://youtu.be/sRwbdbbXvUE 9. Sonal Kulkarni, Enterprise Performance Management Leader, Cummins Inc., talks about their use of Oracle Hyperion Financial Close Management (Account Reconciliation Manager), Oracle Hyperion Financial Management and Oracle Hyperion Financial Data Quality Management and how this is providing efficiency, visibility and compliance benefits. Speaker: Sonal Kulkarni @ http://youtu.be/OEgup5dKyVc 10. Todd Renard, Manager Financial Planning and Business Analytics for B/E Aerospace Inc., talks about the huge benefits that B/E Aerospace is experiencing from Oracle Financial Close Suite. He was extremely excited about Oracle Hyperion Financial Data Quality Management and how this helps them integrate a new business in as little as three weeks. Speaker: Todd Renard @ http://youtu.be/nIfqK46uVI8 11. Peter Smolianski, Chief Technology Officer for the District of Columbia Courts, talked to us about how D.C. Courts is using Oracle Scorecard and Strategy Management to push their 5 year plan forward, to report results to their constituents, and take accountability for process changes to become more efficient. Speaker: Peter Smolianski @ http://www.youtube.com/watch?v=T-DtB5pl-uk 12. Rich Wilkie, Senior Director of Product Management for Financial Close Suite at Oracle, talked to us about Oracle Financial Management Analytics. He told us how the prebuilt dashboards on top of Oracle Hyperion Financial Close Suite make it easy for everyone to see the numbers and understand where they are in the close process, and if there is an issue, they can see where it is. Executives are excited to get this information on mobile devices too. Speaker: Rich Wilkie @ http://www.youtube.com/watch?v=4UHuHgx74Yg 13. Dinesh Balebail, Senior Director of Software Development for Oracle Hyperion Profitability and Cost Management, talked to us about the power and speed of Oracle Hyperion Profitability and Cost Management and how it is being used to do deep costing for Telecoms, Hospitals, Banks and other high transaction volume organizations effectively. Speaker: Dinesh Balebail @ http://youtu.be/ivx5AZCXAfs /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US; mso-fareast-language:EN-US;}

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• Send files ending in .mp4 in Apache with HTTP 206 Partial Content

  - by Pacha

  I am using Apache as web server and the return code is always HTTP/1.1 200. I want to set some kind of handler or use a mod to return HTTP/1.1 206 when the extension of the file requested is .mp4 so it can do video seeking, my web server is already returning some headers to do seeking, but it doesn't work. Is this possible? The HTTP headers http://*hidden*/media/movies/file/1080/d3191cd83109c593ec908f3a47efa8a2.mp4 GET /media/movies/file/1080/d3191cd83109c593ec908f3a47efa8a2.mp4 HTTP/1.1 Host: *hidden* User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://vjs.zencdn.net/4.6/video-js.swf Cookie: csrftoken=zXngwwS1S827g7aAJYbHJS3ajn5BGq9M; sessionid=uj1hlj00c85aoehw0n5fye8waggb7uod Connection: keep-alive HTTP/1.1 200 OK Date: Thu, 21 Aug 2014 15:04:46 GMT Server: Apache/2.2.22 (Debian) X-Mod-H264-Streaming: version=2.2.7 Content-Length: 2148905782 Last-Modified: Wed, 13 Aug 2014 11:36:46 GMT Etag: "8e002a-8015b345-5008133ff23c4;-2146061514" Accept-Ranges: bytes Keep-Alive: timeout=5, max=100 Connection: Keep-Alive Content-Type: video/mp4

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• Problems with Update Manager

  - by user65965

  Whenever I try to update with update manager I get the following errors: W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-updates/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-backports/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-security/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://ppa.launchpad.net/iefremov/ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found W:Failed to fetch http://ppa.launchpad.net/iefremov/ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found W:Failed to fetch http://ppa.launchpad.net/iefremov/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found E:Some index files failed to download. They have been ignored, or old ones used instead. Any help would be much appreciated, thank you. Thank you very much Eliah. I'm still pretty new to Ubuntu. Here's the output I got from the terminal: No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://archive.ubuntu.com/ubuntu precise main restricted commercial deb-src http://archive.ubuntu.com/ubuntu precise restricted main commercial multiverse universe #Added by software-properties ## Major bug fix updates produced after the final release of the ## distribution. deb http://archive.ubuntu.com/ubuntu precise-updates main restricted commercial deb-src http://archive.ubuntu.com/ubuntu precise-updates restricted main commercial multiverse universe #Added by software-properties ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu precise universe deb http://archive.ubuntu.com/ubuntu precise-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://archive.ubuntu.com/ubuntu precise multiverse deb http://archive.ubuntu.com/ubuntu precise-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse commercial deb-src http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse commercial #Added by software-properties deb http://archive.ubuntu.com/ubuntu precise-security main restricted commercial deb-src http://archive.ubuntu.com/ubuntu precise-security restricted main commercial multiverse universe #Added by software-properties deb http://archive.ubuntu.com/ubuntu precise-security universe deb http://archive.ubuntu.com/ubuntu precise-security multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu oneiric partner deb-src http://archive.canonical.com/ubuntu precise partner ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. deb http://extras.ubuntu.com/ubuntu precise main deb-src http://extras.ubuntu.com/ubuntu precise main ## This is a 3rd party script to install and update Oracle Java deb http://www.duinsoft.nl/pkg debs all ## Sun-Java6-JRE deb http://security.ubuntu.com/ubuntu hardy-security main multiverse ** /etc/apt/sources.list.d/askubuntu-tools-ppa-precise.list: deb http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main ** /etc/apt/sources.list.d/askubuntu-tools-ppa-precise.list.save: deb http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main ** /etc/apt/sources.list.d/effie-jayx-turpial-oneiric.list: deb http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/effie-jayx-turpial-oneiric.list.distUpgrade: deb http://ppa.launchpad.net/effie-jayx/turpial/ubuntu oneiric main deb-src http://ppa.launchpad.net/effie-jayx/turpial/ubuntu oneiric main ** /etc/apt/sources.list.d/effie-jayx-turpial-oneiric.list.save: deb http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/getdeb.list: # deb http://archive.getdeb.net/ubuntu oneiric-getdeb apps # disabled on upgrade to precise ** /etc/apt/sources.list.d/getdeb.list.distUpgrade: deb http://archive.getdeb.net/ubuntu oneiric-getdeb apps ** /etc/apt/sources.list.d/getdeb.list.save: # deb http://archive.getdeb.net/ubuntu oneiric-getdeb apps # disabled on upgrade to precise ** /etc/apt/sources.list.d/hotot-team-ppa-oneiric.list: deb http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/hotot-team-ppa-oneiric.list.distUpgrade: deb http://ppa.launchpad.net/hotot-team/ppa/ubuntu oneiric main deb-src http://ppa.launchpad.net/hotot-team/ppa/ubuntu oneiric main ** /etc/apt/sources.list.d/hotot-team-ppa-oneiric.list.save: deb http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/iefremov-ppa-precise.list: deb http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main ** /etc/apt/sources.list.d/iefremov-ppa-precise.list.save: deb http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main ** /etc/apt/sources.list.d/jockey.list: deb http://www.openprinting.org/download/printdriver/debian/ lsb3.2 main-nonfree # disabled on upgrade to precise ** /etc/apt/sources.list.d/jockey.list.distUpgrade: deb http://www.openprinting.org/download/printdriver/debian/ lsb3.2 main-nonfree ** /etc/apt/sources.list.d/jockey.list.save: deb http://www.openprinting.org/download/printdriver/debian/ lsb3.2 main-nonfree # disabled on upgrade to precise ** /etc/apt/sources.list.d/plexydesk-plexydesk-dailybuild-precise.list: deb http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main deb-src http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main ** /etc/apt/sources.list.d/plexydesk-plexydesk-dailybuild-precise.list.save: deb http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main deb-src http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main ** /etc/apt/sources.list.d/precise-partner.list: deb http://archive.canonical.com/ubuntu precise partner #Added by software-center ** /etc/apt/sources.list.d/precise-partner.list.save: deb http://archive.canonical.com/ubuntu precise partner #Added by software-center ** /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list: # deb https://justin-dormandy:[email protected]/commercial-ppa-uploaders/crossover-pro/ubuntu precise main #Added by software-center disabled on upgrade to precise ** /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.distUpgrade: cat: /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.distUpgrade: Permission denied ** /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.save: cat: /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.save: Permission denied ** /etc/apt/sources.list.d/screenlets-ppa-precise.list: deb http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main ** /etc/apt/sources.list.d/screenlets-ppa-precise.list.save: deb http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main ** /etc/apt/sources.list.d/webupd8team-java-precise.list: deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main ** /etc/apt/sources.list.d/webupd8team-java-precise.list.save: deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main

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• REST and redirecting the response

  - by Duane Gran

  I'm developing a RESTful service. Here is a map of the current feature set: POST /api/document/file.jpg (creates the resource) GET /api/document/file.jpg (retrieves the resource) DELETE /api/document/file.jpg (removes the resource) So far, it does everything you might expect. I have a particular use case where I need to set up the browser to send a POST request using the multipart/form-data encoding for the document upload but when it is completed I want to redirect them back to the form. I know how to do a redirect, but I'm not certain about how the client and server should negotiate this behavior. Two approaches I'm considering: On the server check for the multipart/form-data encoding and, if present, redirect to the referrer when the request is complete. Add a service URI of /api/document/file.jpg/redirect to redirect to the referrer when the request is complete. I looked into setting an X header (X-myapp-redirect) but you can't tell the browser which headers to use like this. I manage the code for both the client and the server side so I'm flexible on solutions here. Is there a best practice to follow here?

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• HTTP events? Is there a standard / precedent for this?

  - by user619818

  Our architecture is HTTP servers (custom written) which whereby custom clients send a HTTP request for some information and information is returned just as HTTP works. But we need a special custom 'extension' which is a request which is a subscription for receiving asynchronous 'events' on a resource. For example the client sends an http request subscribing for events on some entity. As the 'entity' generates events they are passed to the http server and the http server must then lookup subscriptions for that entity and send the event message to all subscribed clients. Hope that makes sense. So my questions are: Has this been done before / or is there a standard I should be looking at? If no standard, any suggestions on how to implement? How does a http server send an unsolicited 'message' to a client?

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• What is best practice for search engines when a website is under maintenance?

  - by jamescridland

  I need around a week to transition a heavily data-driven website from one back end to another. During that time I do plan to attempt to keep some pages live, but they won't all work well or look brilliant. Some pages won't work at all. What is the best way to ensure I don't scare Google? Should I hide everything from robots.txt, or mark everything that doesn't work as "503", or are there other things that I should be considering?

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• Verifying that a user comes from a 'partner' site?

  - by matt_tm

  We're building a Drupal module that is going to be given to trusted 'corporate partners'. When a user clicks on a link, he should be redirected to our site as if he's a logged in user. How should I verify that the user is indeed coming from that site? It does not look like 'HTTP_REFERER' is enough because it appears it can be faked. We are providing these partner sites with API Keys. If I receive the API-key as a POST value, sent over https, would that be a sufficient indicator that the user is a genuine partner-site user?

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