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• Django ImageField issue with JPEG's

  - by Kieran Lynn

  I am having a major issue with PIL (Python Image Library) in Django and have jumpped through a lot of hoops and have thus far not been able to figure out what the root of the issue is. The problem essentially breaks down to not being able to upload JPEG images through the ImageField in the Django admin. But the issue is not as simple as installing libjpeg. First, I installed PIL (through Buildout) and realized once it was installed that I had not installed libjpeg because JPEG support was not available. Having not setup the server myself, I just assumed that it was not installed and I compiled libjpeg 8 from the source. This ended up in my /usr/local/lib/ directory. I cleared out my Buildout files and rebuilt everything. This time when PIL compiled I had JPEG support. But I went to the Django Admin and tried to upload a JPEG though an ImageField with no luck. I got the "Upload a valid image. The file you uploaded was either not an image or a corrupted image" error. Just as a test I opened up a the Djano shell and ran the following: > import Image > i = Image.open( "/absolute_path/file.jpg" ) > print i <JpegImagePlugin.JpegImageFile image mode=RGB size=940x375 at 0x7F908C529BD8> This runs with no errors and shows that PIL is able to open JPEG's. After doing some reading, I come across this thread: Is it possible to control which libraries apache uses? Looks like PHP also uses libjpeg and is loading before Django, and therefor loading libjpeg 6.2 before. This is show when using lsof: COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME apache2 2561 www-data mem REG 202,1 146032 639276 /usr/lib/libjpeg.so.62.0.0 So my thought is that I should be using libjpeg 6.2. So I removed libjpeg located in my /usr/local/lib directory. After rereading the PIL installation instructions, I realized that I might not have the dev/header files for libjpeg that PIL needs. So I also uninstalled libjpeg using the aptitude uninstaller (sudo aptitude remove libjpeg62). Then to ensure that I got the header files that PIL needed I installed libjpeg using aptitude: (sudo aptget install libjpeg62-dev). From here I cleaned out my Buildout directory, and reran Buildout, which in turn reinstalled PIL. Once again, I have JPEG support, now using the libjpeg62. So I go to test in the Django Admin. Still no JPEG support. So I wanted to test JPEG support in general and see if the exception was not handled, what kind of error it would throw. So in my homepage view I added the following code to open a JPEG image: import Image i = Image.open( "/absolute_path/file.jpg" ) v = i.verify() Then I pass i to the HTML view just to easily see the output. I deploy these changes to the server and restart. I am surprised not to see an error and get the following output: {{ i }} - <JpegImagePlugin.JpegImageFile image mode=RGB size=940x375 at 0x7F908C529BD8> {{ v }} - None So at this point I am really confused: Why can I successfully open a JPEG while the admin cannot? Am I missing something, is this not an issue with libjpeg? If not an issue with libjpeg, why can I upload a PNG with no issues? Any help would be much appreciated, I have been on this for 2 days debugging with no luck. Setup: 1. Rackspace Cloud Server 2. Ubuntu 10.04 3. Django 1.2.3 (Installed though Buildout) 4. PIL 1.1.7 (Installed though Buildout) 5. libjpeg 6.2 (installed through aptitude (sudo aptget install libjpeg62-dev)

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• PHP framework question

  - by iconiK

  I'm currently working on a browser-based MMO and have chosen the LAMP stack because of the extremely low cost to start with in production (versus Windows + IIS + ASP.NET/C# + SQL Server, even though I have MSDN Universal). However I will need a PHP framework for this as it's no easy task. I am not restricted by anything other than the ability to run on Linux, as I will use a dedicated cloud hosting solution (and a VMWare image for development) and can configure it as needed. In no specific order: It has to be easily scalable; this is crucial. If the game becomes a steady success it will eventually outgrow the server beyond what the host provides and would have to be moved to several load-balanced servers. It is crucial that this can be done with minimum effort. I do know this might require following strict conventions, so if you know of any for your suggested framework please explain what would be needed. It has to provide modules for all the core tasks: authentication, ACL, database access, MVC, and so on. One or two missing modules are fine, as long as they can easily be written and integrated. It should support internationalization. I think there is no excuse for any web framework not to provide means of translating the application and switching between languages without a lot of effort from the programmer. Must have very good community support and preferably commercial support as well. Yes, I do know QCodo/QCubed is so nice, but it is not mature enough for this task. Smooth AJAX support is required. Whether the framework comes with AJAX-capable widgets or has an easy way of adding AJAX is not relevant, as long as AJAX is easily doable. I plan to use jQuery + Dojo or one of them alone - not exactly sure. Auto-magically doing stuff when it improves readability and relieves a lot of effort would be especially nice if it is generally reliable and does not interfere with other requirements. This seems to be the case of CakePHP. I have read a lot of comparisons and I know it's a really hot debate. The general answer is "try and see for yourself what suits you". However, I can't say it is easy for this task and I'm calling for your experience with building applications with similar requirements. So far I'm tied up between Zend and CakePHP by the general criteria, however, all well-known frameworks offer the same functionality in some way or another with different approaches each with it's own advantages and disadvantages. Edits: I am kinda new to MVC, however, I am willing to learn it and I don't care if a framework is easier for those new to MVC. I have lots of time to learn MVC and any other architectures (or whatever they're called) you recommend. I will use Zend as a utility "framework", even though it's just a collection of libraries (some good ones though, as I have been told). Current PHP contenders are: CakePHP, Kohana, Zend alone.

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• Linq to SQL NullReferenceException's: A random needle in a haystack!

  - by Shane

  I'm getting NullReferenceExeceptions at seemly random times in my application and can't track down what could be causing the error. I'll do my best to describe the scenario and setup. Any and all suggestions greatly appreciated! C# .net 3.5 Forms Application, but I use the WebFormRouting library built by Phil Haack (http://haacked.com/archive/2008/03/11/using-routing-with-webforms.aspx) to leverage the Routing libraries of .net (usually used in conjunction with MVC) - intead of using url rewriting for my urls. My database has 60 tables. All Normalized. It's just a massive application. (SQL server 2008) All queries are built with Linq to SQL in code (no SP's). Each time a new instance of my data context is created. I use only one data context with all relationships defined in 4 relationship diagrams in SQL Server. the data context gets created a lot. I let the closing of the data context be handled automatically. I've heard arguments both sides about whether you should leave to be closed automatically or do it yourself. In this case I do it myself. It doesnt seem to matter if I'm creating a lot of instances of the data context or just one. For example, I've got a vote-up button. with the following code, and it errors probably 1 in 10-20 times. protected void VoteUpLinkButton_Click(object sender, EventArgs e) { DatabaseDataContext db = new DatabaseDataContext(); StoryVote storyVote = new StoryVote(); storyVote.StoryId = storyId; storyVote.UserId = Utility.GetUserId(Context); storyVote.IPAddress = Utility.GetUserIPAddress(); storyVote.CreatedDate = DateTime.Now; storyVote.IsDeleted = false; db.StoryVotes.InsertOnSubmit(storyVote); db.SubmitChanges(); // If this story is not yet published, check to see if we should publish it. Make sure that // it is already approved. if (story.PublishedDate == null && story.ApprovedDate != null) { Utility.MakeUpcommingNewsPopular(storyId); } // Refresh our page. Response.Redirect("/news/" + category.UniqueName + "/" + RouteData.Values["year"].ToString() + "/" + RouteData.Values["month"].ToString() + "/" + RouteData.Values["day"].ToString() + "/" + RouteData.Values["uniquename"].ToString()); } The last thing I tried was the "Auto Close" flag setting on SQL Server. This was set to true and I changed to false. Doesnt seem to have done the trick although has had a good overall effect. Here's a detailed that wasnt caught. I also get slighly different errors when caught by my try/catch's. System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. --- System.NullReferenceException: Object reference not set to an instance of an object. at System.Web.Util.StringUtil.GetStringHashCode(String s) at System.Web.UI.ClientScriptManager.EnsureEventValidationFieldLoaded() at System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) at System.Web.UI.WebControls.TextBox.LoadPostData(String postDataKey, NameValueCollection postCollection) at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.forms_news_detail_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) HELP!!!

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• "interface not found" in WCF Moniker without registration for excel

  - by tbischel

  I'm trying to connect excel to a WCF service, but I can't seem to get even a trivial case to work... I get an Invalid Syntax error when I try and create the proxy in excel. I've attached the visual studio debugger to excel, and get that the real error is "interface not found". I know the service works because the test client created by visual studio is ok... so the problem is in the VBA moniker string. I'm hoping to find one of two things: 1) a correction to my moniker string that will make this work, or 2) an existing sample project to download that has the source for both the host and client that does work. Here is the code for my VBA client: Dim addr As String addr = "service:mexAddress=net.tcp://localhost:7891/Test/WcfService1/Service1/mex, " addr = addr + "address=net.tcp://localhost:7891/Test/WcfService1/Service1/, " addr = addr + "contract=IService1, contractNamespace=http://tempuri.org, " addr = addr + "binding=NetTcpBinding_IService1, bindingNamespace=""http://tempuri.org""" MsgBox (addr) Dim service1 As Object Set service1 = GetObject(addr) MsgBox service1.Test(12) I have the following service: [ServiceContract] public interface IService1 { [OperationContract] string GetData(int value); } public class Service1 : IService1 { public string GetData(int value) { return string.Format("You entered: {0}", value); } } It has the following config file: <?xml version="1.0" encoding="utf-8" ?> <configuration> <system.web> <compilation debug="true" /> </system.web> <!-- When deploying the service library project, the content of the config file must be added to the host's app.config file. System.Configuration does not support config files for libraries. --> <system.serviceModel> <services> <service behaviorConfiguration="WcfService1.Service1Behavior" name="WcfService1.Service1"> <endpoint address="" binding="netTcpBinding" bindingConfiguration="" contract="WcfService1.IService1"> <identity> <dns value="localhost" /> </identity> </endpoint> <endpoint address="mex" binding="mexTcpBinding" bindingConfiguration="" contract="IMetadataExchange" /> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:7891/Test/WcfService1/Service1/" /> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior name="WcfService1.Service1Behavior"> <serviceMetadata httpGetEnabled="false" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration>

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• How do I evaluate my skillset against the current market to see what needs improvement and where my

  - by baijajusav

  First of all, this question may be out of bounds for this site. If so, remove it. I say this because this site seems to be a place for more concrete questions that are not so relative in nature. And before I begin, for those of you whom just prefer a question and not this sort of dialog, here is my question: How can I assess my current skills as a programmer and decide where and what areas to improve upon? That said, here's what I'm asking/talking about, in essence. The market is always in constant flux. As programmers we're always having to learn new things, update our skills, push ourselves into that next project. There's not a very good litmus test that I know of for us to get an idea of where we stand as programmers. I came across this blog post by Jeff Atwood talking about why can't programmers code. Instinctively (and as the post goes on to state) I rushed through the program in about 4 minutes (most of that time was b/c I was hand writing it out. Still, this doesn't really answer the question of where do my skills need to be to succeed in today's world. I real blogs, listen to podcasts, try to keep up on the latest things coming out. It has only been in the past couple of months that I made a decision to pick a focus area for my learning as I can't learn everything and trying to do so is to spread myself too thin. I chose ASP.NET MVC & C#. I plan to stick with Microsoft technologies, not out of some sense of loyalty or stubbornness, but rather because they seem to stream together and have a unifying connection between them. With Windows Phone 7 coming out, it seems that now is the obvious time to pick up WPF and Silverlight as well. Still, if you asked me to code something apart from intellisense and the internet, I probably couldn't get the syntax right. I don't have libraries memorized or know precisely where the classes I use exist within the .Net framework, namely because I haven't had to pull that knowledge out of the air. In a way, I suppose Visual Studio has insulated me, which isn't a good thing, but, at the same time, I've still been able to be productive. I'm working on my own side project to try and help my learning. In doing so, I'm trying to make use of best practices and 3rd party frameworks where I can. I'm using automapper and EF 1.0. I know everyone in the .net community seems to cry foul at the sound of EF 1.0, but I can't say why because I've never used it. There's no lazy loading and that has proven rather annoying; however, aside from that, I haven't had that much of an issue. Granted this is probably because I'm not writing tests as I go (which I'm not doing because I don't know how to test EF in tests and don't really have a clue how to write tests for ASP.NET MVC 1.0). I'm also using a custom membership provider; granted, it's a barebone implementation, but I'm using it still. My thinking in all of this is, while I am neglecting a great many important technologies that are in the mainstream, I'll have a working project in the end. I can come back and add those things after I finish. Doing it all now and at once seems like too much. I know how I work and I don't think I'd ever get it done that way. I've elected to make this a community wiki as I think this question might fight better there. If a moderator disagrees with that choice or the decision to post this here, the just delete the question. I'm not trying to make undue work for anyone. I'm just a programmer trying to assess my where his skills are now and where I should be improving.

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• In Ruby, how to I read memory values from an external process?

  - by grg-n-sox

  So all I simply want to do is make a Ruby program that reads some values from known memory address in another process's virtual memory. Through my research and basic knowledge of hex editing a running process's x86 assembly in memory, I have found the base address and offsets for the values in memory I want. I do not want to change them; I just want to read them. I asked a developer of a memory editor how to approach this abstract of language and assuming a Windows platform. He told me the Win32API calls for OpenProcess, CreateProcess, ReadProcessMemory, and WriteProcessMemory were the way to go using either C or C++. I think that the way to go would be just using the Win32API class and mapping two instances of it; One for either OpenProcess or CreateProcess, depending on if the user already has th process running or not, and another instance will be mapped to ReadProcessMemory. I probably still need to find the function for getting the list of running processes so I know which running process is the one I want if it is running already. This would take some work to put all together, but I am figuring it wouldn't be too bad to code up. It is just a new area of programming for me since I have never worked this low level from a high level language (well, higher level than C anyways). I am just wondering of the ways to approach this. I could just use a bunch or Win32API calls, but that means having to deal with a bunch of string and array pack and unpacking that is system dependant I want to eventually make this work cross-platform since the process I am reading from is produced from an executable that has multiple platform builds, (I know the memory address changes from system to system. The idea is to have a flat file that contains all memory mappings so the Ruby program can just match the current platform environment to the matching memory mapping.) but from the looks of things I'll just have to make a class that wraps whatever is the current platform's system shared library memory related function calls. For all I know, there could already exist a Ruby gem that takes care of all of this for me that I am just not finding. I could also possibly try editing the executables for each build to make it so whenever the memory values I want to read from are written to by the process, it also writes a copy of the new value to a space in shared memory that I somehow have Ruby make an instance of a class that is a pointer under the hood to that shared memory address and somehow signal to the Ruby program that the value was updated and should be reloaded. Basically a interrupt based system would be nice, but since the purpose of reading these values is just to send to a scoreboard broadcasted from a central server, I could just stick to a polling based system that sends updates at fixed time intervals. I also could just abandon Ruby altogether and go for C or C++ but I do not know those nearly as well. I actually know more x86 than C++ and I only know C as far as system independent ANSI C and have never dealt with shared system libraries before. So is there a gem or lesser known module available that has already done this? If not, then any additional information as to how to accomplish this would be nice. I guess, long story short, how do I do all this? Thanks in advance, Grg PS: Also a confirmation that those Win32API calls should be aimed at the kernel32.dll library would be nice.

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• curl_init undefined?

  - by udaya

  Hi I am importing the contacts from gmail to my page ..... The process doesnot work due to this error 'curl_init' is not defined The suggestion i got is to 1.uncomment destination curl.dll 2.copy the following libraries to the windows/system32 dir. ssleay32.dll libeay32.dll 3.copy php_curl.dll to windows/system32 After trying all these i refreshed my xampp Even then error occurs This is my page where i am trying to import the gmail contacts ` // set URL and other appropriate options curl_setopt($ch, CURLOPT_URL, "http://www.example.com/"); curl_setopt($ch, CURLOPT_HEADER, 0); // grab URL and pass it to the browser curl_exec($ch); // close cURL resource, and free up system resources curl_close($ch); ? "HOSTED_OR_GOOGLE", "Email" = $_POST['Email'], echo "Passwd" = $_POST['Passwd'], "service" = "cp", "source" = "tutsmore/1.2" ); //Now we are going to post these datas to the clientLogin url. // Initialize the curl object with the $curl = curl_init($clientlogin_url); //Make the post true curl_setopt($curl, CURLOPT_POST, true); //Passing the above array of parameters. curl_setopt($curl, CURLOPT_POSTFIELDS, $clientlogin_post); //Set this for authentication and ssl communication. curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY); //provide false to not to check the server for the certificate. curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); //Tell curl to just don't echo the data but return it to a variable. curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //The variable containing response $response = curl_exec($curl); //Check whether the user is successfully login using the preg_match and save the auth key if the user //is successfully logged in preg_match("/Auth=([a-z0-9_-]+)/i", $response, $matches); $auth = $matches[1]; // Include the Auth string in the headers $headers = array("Authorization: GoogleLogin auth=" . $auth); // Make the request to the google contacts feed with the auth key $curl = curl_init('http://www.google.com/m8/feeds/contacts/default/full?max-results=10000'); //passing the headers of auth key. curl_setopt($curl, CURLOPT_HTTPHEADER, $headers); //Return the result in a variable curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //the variable with the response. $feed = curl_exec($curl); //Create empty array of contacts echo "contacts".$contacts=array(); //Initialize the DOMDocument object $doc=new DOMDocument(); //Check whether the feed is empty //If not empty then load that feed. if (!empty($feed)) $doc-loadHTML($feed); //Initialize the domxpath object and provide the loaded feed $xpath=new DOMXPath($doc); //Get every entry tags from the feed. $query="//entry"; $data=$xpath-query($query); //Process each entry tag foreach ($data as $node) { //children of each entry tag. $entry_nodes=$node-childNodes; //Create a temproray array. $tempArray=array(); //Process the child node of the entry tag. foreach($entry_nodes as $child) { //get the tagname of the child node. $domNodesName=$child-nodeName; switch($domNodesName) { case 'title' : { $tempArray['fullName']=$child-nodeValue; } break; case 'email' : { if (strpos($child-getAttribute('rel'),'home')!==false) $tempArray['email_1']=$child-getAttribute('address'); elseif(strpos($child-getAttribute('rel'),'work')!=false) $tempArray['email_2']=$child-getAttribute('address'); elseif(strpos($child-getAttribute('rel'),'other')!==false) $tempArray['email_3']=$child-getAttribute('address'); } break; } } if (!empty($tempArray['email_1']))$contacts[$tempArray['email_1']]=$tempArray; if(!empty($tempArray['email_2'])) $contacts[$tempArray['email_2']]=$tempArray; if(!empty($tempArray['email_3'])) $contacts[$tempArray['email_3']]=$tempArray; } foreach($contacts as $key=$val) { //Echo the email echo $key.""; } } else { //The form ? " method="POST" Email: Password: tutsmore don't save your email and password trust us. ` code is completely provided for debugging if any optimization is needed i will try to optimize the code

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• Can't log in via SSH to any accounts set to use /bin/bash as a default shell

  - by Gui Ambros

  I'm trying to install bash as the default shell on a ARM Linux running on an embedded device (Synology DS212+ NAS). But there's something really wrong, and I can't figure out what it is. Symptoms: 1) Root has /bin/bash as default shell, and can log in normally via SSH: $ grep root /etc/passwd root:x:0:0:root:/root:/bin/bash $ ssh root@NAS root@NAS's password: Last login: Sun Dec 16 14:06:56 2012 from desktop # 2) joeuser has /bin/bash as default shell, and receives "Permission denied" when trying to log in via SSH: $ grep joeuser /etc/passwd joeuser:x:1029:100:Joe User:/home/joeuser:/bin/bash $ ssh joeuser@localhost joeuser@NAS's password: Last login: Sun Dec 16 14:07:22 2012 from desktop Permission denied, please try again. Connection to localhost closed. 3) changing joeuser's shell back to /bin/sh: $ grep joeuser /etc/passwd joeuser:x:1029:100:Joe User:/home/joeuser:/bin/sh $ ssh joeuser@localhost Last login: Sun Dec 16 15:50:52 2012 from localhost $ To make things even more strange, I can log in as joeuser using /bin/bash using the serial console (!). Also a su - joeuser as root works fine, so the bash binary itself is working fine. In an act of despair, I changed joeuser's uid to 0 on /etc/passwd, but also didn't work, so it doesn't seem to be anything permission related. Seems that bash is doing some extra checking that sshd didn't like, and blocking the connections for non-root users. Maybe some sort of sanity checking - or terminal emulation - that is triggering the SIGCHLD, but only when called via ssh. I already went through every single item on sshd_config, and also put SSHD in debug mode, but didn't find anything strange. Here's my /etc/ssh/sshd_config: LogLevel DEBUG LoginGraceTime 2m PermitRootLogin yes RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile %h/.ssh/authorized_keys ChallengeResponseAuthentication no UsePAM yes AllowTcpForwarding no ChrootDirectory none Subsystem sftp internal-sftp -f DAEMON -u 000 And here's the output from /usr/syno/sbin/sshd -d, showing the failed attempt of joeuser trying to log in, with /bin/bash as the shell: debug1: Config token is loglevel debug1: Config token is logingracetime debug1: Config token is permitrootlogin debug1: Config token is rsaauthentication debug1: Config token is pubkeyauthentication debug1: Config token is authorizedkeysfile debug1: Config token is challengeresponseauthentication debug1: Config token is usepam debug1: Config token is allowtcpforwarding debug1: Config token is chrootdirectory debug1: Config token is subsystem debug1: HPN Buffer Size: 87380 debug1: sshd version OpenSSH_5.8p1-hpn13v11 debug1: read PEM private key done: type RSA debug1: private host key: #0 type 1 RSA debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: read PEM private key done: type ECDSA debug1: private host key: #2 type 3 ECDSA debug1: rexec_argv[0]='/usr/syno/sbin/sshd' debug1: rexec_argv[1]='-d' Set /proc/self/oom_adj from 0 to -17 debug1: Bind to port 22 on ::. debug1: Server TCP RWIN socket size: 87380 debug1: HPN Buffer Size: 87380 Server listening on :: port 22. debug1: Bind to port 22 on 0.0.0.0. debug1: Server TCP RWIN socket size: 87380 debug1: HPN Buffer Size: 87380 Server listening on 0.0.0.0 port 22. debug1: Server will not fork when running in debugging mode. debug1: rexec start in 6 out 6 newsock 6 pipe -1 sock 9 debug1: inetd sockets after dupping: 4, 4 Connection from 127.0.0.1 port 52212 debug1: HPN Disabled: 0, HPN Buffer Size: 87380 debug1: Client protocol version 2.0; client software version OpenSSH_5.8p1-hpn13v11 SSH: Server;Ltype: Version;Remote: 127.0.0.1-52212;Protocol: 2.0;Client: OpenSSH_5.8p1-hpn13v11 debug1: match: OpenSSH_5.8p1-hpn13v11 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.8p1-hpn13v11 debug1: permanently_set_uid: 1024/100 debug1: MYFLAG IS 1 debug1: list_hostkey_types: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: AUTH STATE IS 0 debug1: REQUESTED ENC.NAME is 'aes128-ctr' debug1: kex: client->server aes128-ctr hmac-md5 none SSH: Server;Ltype: Kex;Remote: 127.0.0.1-52212;Enc: aes128-ctr;MAC: hmac-md5;Comp: none debug1: REQUESTED ENC.NAME is 'aes128-ctr' debug1: kex: server->client aes128-ctr hmac-md5 none debug1: expecting SSH2_MSG_KEX_ECDH_INIT debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: KEX done debug1: userauth-request for user joeuser service ssh-connection method none SSH: Server;Ltype: Authname;Remote: 127.0.0.1-52212;Name: joeuser debug1: attempt 0 failures 0 debug1: Config token is loglevel debug1: Config token is logingracetime debug1: Config token is permitrootlogin debug1: Config token is rsaauthentication debug1: Config token is pubkeyauthentication debug1: Config token is authorizedkeysfile debug1: Config token is challengeresponseauthentication debug1: Config token is usepam debug1: Config token is allowtcpforwarding debug1: Config token is chrootdirectory debug1: Config token is subsystem debug1: PAM: initializing for "joeuser" debug1: PAM: setting PAM_RHOST to "localhost" debug1: PAM: setting PAM_TTY to "ssh" debug1: userauth-request for user joeuser service ssh-connection method password debug1: attempt 1 failures 0 debug1: do_pam_account: called Accepted password for joeuser from 127.0.0.1 port 52212 ssh2 debug1: monitor_child_preauth: joeuser has been authenticated by privileged process debug1: PAM: establishing credentials User child is on pid 9129 debug1: Entering interactive session for SSH2. debug1: server_init_dispatch_20 debug1: server_input_channel_open: ctype session rchan 0 win 65536 max 16384 debug1: input_session_request debug1: channel 0: new [server-session] debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_global_request: rtype [email protected] want_reply 0 debug1: server_input_channel_req: channel 0 request pty-req reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req pty-req debug1: Allocating pty. debug1: session_new: session 0 debug1: session_pty_req: session 0 alloc /dev/pts/1 debug1: server_input_channel_req: channel 0 request shell reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req shell debug1: Setting controlling tty using TIOCSCTTY. debug1: Received SIGCHLD. debug1: session_by_pid: pid 9130 debug1: session_exit_message: session 0 channel 0 pid 9130 debug1: session_exit_message: release channel 0 debug1: session_by_tty: session 0 tty /dev/pts/1 debug1: session_pty_cleanup: session 0 release /dev/pts/1 Received disconnect from 127.0.0.1: 11: disconnected by user debug1: do_cleanup debug1: do_cleanup debug1: PAM: cleanup debug1: PAM: closing session debug1: PAM: deleting credentials Here you have the full output of sshd -dd, together with ssh -vv. Bash: # bash --version GNU bash, version 3.2.49(1)-release (arm-none-linux-gnueabi) Copyright (C) 2007 Free Software Foundation, Inc. The bash binary was cross compiled from source. I also tried using a pre-compiled binary from the Optware distribution, but had the exact same problem. I checked for missing shared libraries using objdump -x, but they're all there. Any ideas what could be causing this "Permission denied, please try again."? I'm almost diving in the bash source code to investigate, but trying to avoid hours chasing something that may be silly.

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• Web service occasionally slows down significantly

  - by Swoop

  My company is running into a problem with a web service that is written in C#/ASP.Net. The service receives an identity key for data in SQL Server and a path to generate and save a PDF report for this data. In most cases, this web service returns results to the calling web pages very quickly, usually within a few seconds max. However, it seems to occasionally hit a significant slowdown. The web application calling the web service will generate a timeout error when this slowdown occurs. We have checked and the PDF does get created and saved to the server, so it looks like the web service eventually finishes executing. It seems to take about 1 to 2 minutes for processing to have completed. The PDF is generated using ActiveReports from Data Dynamics. Wwhen this problem occurs, making a small change to the web service's config file (ie, adding a blank space to a connection string line) seems to restart the web service and everything is perfectly ok for a period of time afterwards. Other web applications that are running on the same web server do not seem to experience this type of behavior, only this particular web service. I have added the code for the web service below. It is basic calls to 3rd party libraries. We are not able to recreate this problem in test. I am wondering what might be causing this issue? [WebMethod] public string Publish(int identity, string transactionType, string directory, string filename) { try { AdpConnection Conn = new AdpConnection(ConfigurationManager.AppSettings["myDBConnString"]); AdpCommand Cmd = new AdpCommand("storedproc_GetData", oConn); AdpParameter Param; Cmd.CommandType = CommandType.StoredProcedure; Param = Cmd.CreateParameter("@Identity", DbType.Int32); Param.Value = identity; Cmd.Parameters.Add(oParam); Conn.Open(); string aResponse = Cmd.ExecuteScalar().ToString(); Conn.Close(); if (transactionType == "typeA") { //Parse response DataSet dsResponse = ParseDataResponse(aResponse); //dsResponse.WriteXml(@ConfigurationManager.AppSettings["DocsDir"] + identity.ToString() + ".xml"); DataDynamics.ActiveReports.ActiveReport3 rpt = new DataDynamics.ActiveReports.ActiveReport3(); rpt.LoadLayout(@ConfigurationManager.AppSettings["myReportPath"] + "TypeA.rpx"); rpt.AddNamedItem("ReportPath", @ConfigurationManager.AppSettings["myReportPath"]); rpt.AddNamedItem("XMLSTRING", FormatXML(dsResponse.GetXml())); DataDynamics.ActiveReports.DataSources.XMLDataSource xmlds = new DataDynamics.ActiveReports.DataSources.XMLDataSource(); xmlds.FileURL = null; xmlds.RecordsetPattern = "//DataPatternA"; xmlds.LoadXML(FormatXML(dsResponse.GetXml())); if (!System.IO.Directory.Exists(@ConfigurationManager.AppSettings["DocsDir"] + directory + @"\")) { System.IO.Directory.CreateDirectory(@ConfigurationManager.AppSettings["DocsDir"] + directory + @"\"); } string sXML = FormatXML(dsResponse.GetXml()); StreamWriter sw = new StreamWriter(@ConfigurationManager.AppSettings["DocsDir"] + directory + @"\" + filename + ".xml", false); sw.Write(sXML); sw.Close(); rpt.DataSource = xmlds; rpt.Run(true); DataDynamics.ActiveReports.Export.Pdf.PdfExport xPdf = new DataDynamics.ActiveReports.Export.Pdf.PdfExport(); xPdf.Export(rpt.Document, @ConfigurationManager.AppSettings["DocsDir"] + directory + @"\" + filename + ".pdf"); } } catch(Exception ex) { return "Error: " + ex.ToString(); } return @ConfigurationManager.AppSettings["DocsDir"] + directory + @"\" + filename + ".pdf"; }

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• Temporary "Backup" of SharePoint Content During Feature and Solution Deployment

  - by ccomet

  I need to decide on a method for storing a subset of the content in a SharePoint site, so that when I delete and recreate certain lists as part of a feature activation, I can re-insert all of this content back where it should belong. I have an idea myself, but I don't know if it's the only method and more importantly, the right method. My client has me creating a SharePoint system for them to communicate with their clients. The business process has maybe 5 stages in it (maybe it's more, I don't even know because they don't tell me everything), and the current system I've written over the past months is maybe 2 stages through. This meets our deadline of completing those systems by Monday next week... but at that point my client is planning on making the site live from that point. In effect, their work with their clients will be running parallel with my work for them. As I complete my own work on a separate test server, I'll push each following stage of the process onto the live server. Scheduled downtimes during non-business times (like a weekend) will be available for me to perform these pushes. Keeping pace so that my development is faster than the actual business process is my own problem and off-topic... so let's get back to the problem I stated at the start of this post. In this system, we have sets of features which will create lists for their associated content types and field types when activated, and delete these lists when the feature is deactivated. Most updates don't need to deactivate and reactivate these features, such as workflow changes, custom actions, custom forms, and similar ilk. But there are some parts which do require this. On my test server, it's okay for me to obliterate lists, but once the site is live and there's real correspondence data, it's absolutely unacceptable to do this. So when I need to implement a new change in functionality, I need to be able to store the currently present data in several lists, deactivate the feature, reactivate the feature, and restore all of this data. Perhaps I have hoist myself by my own petard with the feature system I implemented. Unfortunately, the necessity to later on make several of these "project sites" meant I had to do a lot of my code with the concept of "Can be deployed repeatedly" in mind. My current plan is to run through lists and libraries which will be affected by the particular feature that is to be reset. Files and all of their versions will be saved in a directory on the server. Then, a set of text files will be used to store all of the important field values for the items. This includes a lot of cross-list reference lookups that will need to be maintained, but that's simple enough. Then, I deactivate the feature, deploy the new solution, and reactivate the feature. We upload all of the files in the order specified by their versions and update them with the stored fields for those versions, so that we retain the version structure. As each one is first uploaded, the new ID is picked out, and all relevant lookups in the rest of the files are updated (in some manner that I make sure I don't re-update it later with an incorrect value, of course). After that, we run through all the rest of the items in the order most conducive to keeping the relational data correct. This roughly summarizes what my current plan is. To my advantage, there are no long running workflows in the system that will be affected by this, so there's nothing I will have to worry about making sure nothing is "still running" when I do this stuff. I don't really know all the cons of this approach... I can imagine they're quite hefty. But I'm unsure what other choices I even have, and my searches haven't turned up anything. Is there anyone who can think of a better idea? Or will anyone just tell me that I really have no other choice? Thanks in advance!

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• Writing a code example

  - by Stefano Borini

  I would like to have your feedback regarding code examples. One of the most frustrating experiences I sometimes have when learning a new technology is finding useless examples. I think an example as the most precious thing that comes with a new library, language, or technology. It must be a starting point, a wise and unadulterated explanation on how to achieve a given result. A perfect example must have the following characteristics: Self contained: it should be small enough to be compiled or executed as a single program, without dependencies or complex makefiles. An example is also a strong functional test if you correctly installed the new technology. The more issues could arise, the more likely is that something goes wrong, and the more difficult is to debug and solve the situation. Pertinent: it should demonstrate one, and only one, specific feature of your software/library, involving the minimal additional behavior from external libraries. Helpful: the code should bring you forward, step by step, using comments or self-documenting code. Extensible: the example code should be a small “framework” or blueprint for additional tinkering. A learner can start by adding features to this blueprint. Recyclable: it should be possible to extract parts of the example to use in your own code Easy: An example code is not the place to show your code-fu skillz. Keep it easy. helpful acronym: SPHERE. Prototypical examples of violations of those rules are the following: Violation of self-containedness: an example spanning multiple files without any real need for it. If your example is a python program, keep everything into a single module file. Don’t sub-modularize it. In Java, try to keep everything into a single class, unless you really must partition some entity into a meaningful object you need to pass around (and java mandates one class per file, if I remember correctly). Violation of Pertinency: When showing how many different shapes you can draw, adding radio buttons and complex controls with all the possible choices for point shapes is a bad idea. You de-focalize your example code, introducing code for event handling, controls initialization etc., and this is not part the feature you want to demonstrate, they are unnecessary noise in the understanding of the crucial mechanisms providing the feature. Violation of Helpfulness: code containing dubious naming, wrong comments, hacks, and functions longer than one page of code. Violation of Extensibility: badly factored code that have everything into a single function, with potentially swappable entities embedded within the code. Example: if an example reads data from a file and displays it, create a method getData() returning a useful entity, instead of opening the file raw and plotting the stuff. This way, if the user of the library needs to read data from a HTTP server instead, he just has to modify the getData() module and use the example almost as-is. Another violation of Extensibility comes if the example code is not under a fully liberal (e.g. MIT or BSD) license. Violation of Recyclability: when the code layout is so intermingled that is difficult to easily copy and paste parts of it and recycle them into another program. Again, licensing is also a factor. Violation of Easiness: Yes, you are a functional-programming nerd and want to show how cool you are by doing everything on a single line of map, filter and so on, but that could not be helpful to someone else, who is already under pressure to understand your library, and now has to understand your code as well. And in general, the final rule: if it takes more than 10 minutes to do the following: compile the code, run it, read the source, and understand it fully, it means that the example is not a good one. Please let me know your opinion, either positive or negative, or experience on this regard.

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• VFS: file-max limit 1231582 reached

  - by Rick Koshi

  I'm running a Linux 2.6.36 kernel, and I'm seeing some random errors. Things like ls: error while loading shared libraries: libpthread.so.0: cannot open shared object file: Error 23 Yes, my system can't consistently run an 'ls' command. :( I note several errors in my dmesg output: # dmesg | tail [2808967.543203] EXT4-fs (sda3): re-mounted. Opts: (null) [2837776.220605] xv[14450] general protection ip:7f20c20c6ac6 sp:7fff3641b368 error:0 in libpng14.so.14.4.0[7f20c20a9000+29000] [4931344.685302] EXT4-fs (md16): re-mounted. Opts: (null) [4982666.631444] VFS: file-max limit 1231582 reached [4982666.764240] VFS: file-max limit 1231582 reached [4982767.360574] VFS: file-max limit 1231582 reached [4982901.904628] VFS: file-max limit 1231582 reached [4982964.930556] VFS: file-max limit 1231582 reached [4982966.352170] VFS: file-max limit 1231582 reached [4982966.649195] top[31095]: segfault at 14 ip 00007fd6ace42700 sp 00007fff20746530 error 6 in libproc-3.2.8.so[7fd6ace3b000+e000] Obviously, the file-max errors look suspicious, being clustered together and recent. # cat /proc/sys/fs/file-max 1231582 # cat /proc/sys/fs/file-nr 1231712 0 1231582 That also looks a bit odd to me, but the thing is, there's no way I have 1.2 million files open on this system. I'm the only one using it, and it's not visible to anyone outside the local network. # lsof | wc 16046 148253 1882901 # ps -ef | wc 574 6104 44260 I saw some documentation saying: file-max & file-nr: The kernel allocates file handles dynamically, but as yet it doesn't free them again. The value in file-max denotes the maximum number of file- handles that the Linux kernel will allocate. When you get lots of error messages about running out of file handles, you might want to increase this limit. Historically, the three values in file-nr denoted the number of allocated file handles, the number of allocated but unused file handles, and the maximum number of file handles. Linux 2.6 always reports 0 as the number of free file handles -- this is not an error, it just means that the number of allocated file handles exactly matches the number of used file handles. Attempts to allocate more file descriptors than file-max are reported with printk, look for "VFS: file-max limit reached". My first reading of this is that the kernel basically has a built-in file descriptor leak, but I find that very hard to believe. It would imply that any system in active use needs to be rebooted every so often to free up the file descriptors. As I said, I can't believe this would be true, since it's normal to me to have Linux systems stay up for months (even years) at a time. On the other hand, I also can't believe that my nearly-idle system is holding over a million files open. Does anyone have any ideas, either for fixes or further diagnosis? I could, of course, just reboot the system, but I don't want this to be a recurring problem every few weeks. As a stopgap measure, I've quit Firefox, which was accounting for almost 2000 lines of lsof output (!) even though I only had one window open, and now I can run 'ls' again, but I doubt that will fix the problem for long. (edit: Oops, spoke too soon. By the time I finished typing out this question, the symptom was/is back) Thanks in advance for any help. And another update: My system was basically unusable, so I decided I had no option but to reboot. But before I did, I carefully quit one process at a time, checking /proc/sys/fs/file-nr after each termination. I found that, predictably, the number of open files gradually went down as I closed things down. Unfortunately, it wasn't a large effect. Yes, I was able to clear up 5000-10000 open files, but there were still over 1.2 million left. I shut down just about everything. All interactive shells, except for the one ssh I left open to finish closing down, httpd, even nfs service. Basically everything in the process table that wasn't a kernel process, and there were still an appalling number of files apparently left open. After the reboot, I found that /proc/sys/fs/file-nr showed about 2000 files open, which is much more reasonable. Starting up 2 Xvnc sessions as usual, along with the dozen or so monitoring windows I like to keep open, brought the total up to about 4000 files. I can see nothing wrong with that, of course, but I've obviously failed to identify the root cause. I'm still looking for ideas, since I definitely expect it to happen again. And another update, the next day: I watched the system carefully, and discovered that /proc/sys/fs/file-nr showed a growth of about 900 open files per hour. I shut down the system's only NFS client for the night, and the growth stopped. Mind you, it didn't free up the resources, but it did at least stop consuming more. Is this a known bug with NFS? I'll be bringing the NFS client back online today, and I'll narrow it down further. If anyone is familiar with this behavior, feel free to jump in with "Yeah, NFS4 has this problem, go back to NFS3" or something like that.

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• Move <option> to top of list with Javascript

  - by Adam

  I'm trying to create a button that will move the currently selected OPTION in a SELECT MULTIPLE list to the top of that list. I currently have OptionTransfer.js implemented, which is allowing me to move items up and down the list. I want to add a new function function MoveOptionTop(obj) { ... } Here is the source of OptionTransfer.js // =================================================================== // Author: Matt Kruse // WWW: http://www.mattkruse.com/ // // NOTICE: You may use this code for any purpose, commercial or // private, without any further permission from the author. You may // remove this notice from your final code if you wish, however it is // appreciated by the author if at least my web site address is kept. // // You may *NOT* re-distribute this code in any way except through its // use. That means, you can include it in your product, or your web // site, or any other form where the code is actually being used. You // may not put the plain javascript up on your site for download or // include it in your javascript libraries for download. // If you wish to share this code with others, please just point them // to the URL instead. // Please DO NOT link directly to my .js files from your site. Copy // the files to your server and use them there. Thank you. // =================================================================== /* SOURCE FILE: selectbox.js */ function hasOptions(obj){if(obj!=null && obj.options!=null){return true;}return false;} function selectUnselectMatchingOptions(obj,regex,which,only){if(window.RegExp){if(which == "select"){var selected1=true;var selected2=false;}else if(which == "unselect"){var selected1=false;var selected2=true;}else{return;}var re = new RegExp(regex);if(!hasOptions(obj)){return;}for(var i=0;i(b.text+"")){return 1;}return 0;});for(var i=0;i3){var regex = arguments[3];if(regex != ""){unSelectMatchingOptions(from,regex);}}if(!hasOptions(from)){return;}for(var i=0;i=0;i--){var o = from.options[i];if(o.selected){from.options[i] = null;}}if((arguments.length=0;i--){if(obj.options[i].selected){if(i !=(obj.options.length-1) && ! obj.options[i+1].selected){swapOptions(obj,i,i+1);obj.options[i+1].selected = true;}}}} function removeSelectedOptions(from){if(!hasOptions(from)){return;}for(var i=(from.options.length-1);i=0;i--){var o=from.options[i];if(o.selected){from.options[i] = null;}}from.selectedIndex = -1;} function removeAllOptions(from){if(!hasOptions(from)){return;}for(var i=(from.options.length-1);i=0;i--){from.options[i] = null;}from.selectedIndex = -1;} function addOption(obj,text,value,selected){if(obj!=null && obj.options!=null){obj.options[obj.options.length] = new Option(text, value, false, selected);}} /* SOURCE FILE: OptionTransfer.js */ function OT_transferLeft(){moveSelectedOptions(this.right,this.left,this.autoSort,this.staticOptionRegex);this.update();} function OT_transferRight(){moveSelectedOptions(this.left,this.right,this.autoSort,this.staticOptionRegex);this.update();} function OT_transferAllLeft(){moveAllOptions(this.right,this.left,this.autoSort,this.staticOptionRegex);this.update();} function OT_transferAllRight(){moveAllOptions(this.left,this.right,this.autoSort,this.staticOptionRegex);this.update();} function OT_saveRemovedLeftOptions(f){this.removedLeftField = f;} function OT_saveRemovedRightOptions(f){this.removedRightField = f;} function OT_saveAddedLeftOptions(f){this.addedLeftField = f;} function OT_saveAddedRightOptions(f){this.addedRightField = f;} function OT_saveNewLeftOptions(f){this.newLeftField = f;} function OT_saveNewRightOptions(f){this.newRightField = f;} function OT_update(){var removedLeft = new Object();var removedRight = new Object();var addedLeft = new Object();var addedRight = new Object();var newLeft = new Object();var newRight = new Object();for(var i=0;i0){str=str+delimiter;}str=str+val;}return str;} function OT_setDelimiter(val){this.delimiter=val;} function OT_setAutoSort(val){this.autoSort=val;} function OT_setStaticOptionRegex(val){this.staticOptionRegex=val;} function OT_init(theform){this.form = theform;if(!theform[this.left]){alert("OptionTransfer init(): Left select list does not exist in form!");return false;}if(!theform[this.right]){alert("OptionTransfer init(): Right select list does not exist in form!");return false;}this.left=theform[this.left];this.right=theform[this.right];for(var i=0;i

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• Set up linux box for hosting a-z

  - by microchasm

  I am in the process of reinstalling the OS on a machine that will be used to host a couple of apps for our business. The apps will be local only; access from external clients will be via vpn only. The prior setup used a hosting control panel (Plesk) for most of the admin, and I was looking at using another similar piece of software for the reinstall - but I figured I should finally learn how it all works. I can do most of the things the software would do for me, but am unclear on the symbiosis of it all. This is all an attempt to further distance myself from the land of Configuration Programmer/Programmer, if at all possible. I can't find a full walkthrough anywhere for what I'm looking for, so I thought I'd put up this question, and if people can help me on the way I will edit this with the answers, and document my progress/pitfalls. Hopefully someday this will help someone down the line. The details: CentOS 5.5 x86_64 httpd: Apache/2.2.3 mysql: 5.0.77 (to be upgraded) php: 5.1 (to be upgraded) The requirements: SECURITY!! Secure file transfer Secure client access (SSL Certs and CA) Secure data storage Virtualhosts/multiple subdomains Local email would be nice, but not critical The Steps: Download latest CentOS DVD-iso (torrent worked great for me). Install CentOS: While going through the install, I checked the Server Components option thinking I was going to be using another Plesk-like admin. In hindsight, considering I've decided to try to go my own way, this probably wasn't the best idea. Basic config: Setup users, networking/ip address etc. Yum update/upgrade. Upgrade PHP/MySQL: To upgrade PHP and MySQL to the latest versions, I had to look to another repo outside CentOS. IUS looks great and I'm happy I found it! Add IUS repository to our package manager cd /tmp wget http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/x86_64/epel-release-1-1.ius.el5.noarch.rpm rpm -Uvh epel-release-1-1.ius.el5.noarch.rpm wget http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/x86_64/ius-release-1-4.ius.el5.noarch.rpm rpm -Uvh ius-release-1-4.ius.el5.noarch.rpm yum list | grep -w \.ius\. # list all the packages in the IUS repository; use this to find PHP/MySQL version and libraries you want to install Remove old version of PHP and install newer version from IUS rpm -qa | grep php # to list all of the installed php packages we want to remove yum shell # open an interactive yum shell remove php-common php-mysql php-cli #remove installed PHP components install php53 php53-mysql php53-cli php53-common #add packages you want transaction solve #important!! checks for dependencies transaction run #important!! does the actual installation of packages. [control+d] #exit yum shell php -v PHP 5.3.2 (cli) (built: Apr 6 2010 18:13:45) Upgrade MySQL from IUS repository /etc/init.d/mysqld stop rpm -qa | grep mysql # to see installed mysql packages yum shell remove mysql mysql-server #remove installed MySQL components install mysql51 mysql51-server mysql51-devel transaction solve #important!! checks for dependencies transaction run #important!! does the actual installation of packages. [control+d] #exit yum shell service mysqld start mysql -v Server version: 5.1.42-ius Distributed by The IUS Community Project Upgrade instructions courtesy of IUS wiki: http://wiki.iuscommunity.org/Doc/ClientUsageGuide Install rssh (restricted shell) to provide scp and sftp access, without allowing ssh login cd /tmp wget http://dag.wieers.com/rpm/packages/rssh/rssh-2.3.2-1.2.el5.rf.x86_64.rpm rpm -ivh rssh-2.3.2-1.2.el5.rf.x86_64.rpm useradd -m -d /home/dev -s /usr/bin/rssh dev passwd dev Edit /etc/rssh.conf to grant access to SFTP to rssh users. vi /etc/rssh.conf Uncomment or add: allowscp allowsftp This allows me to connect to the machine via SFTP protocol in Transmit (my FTP program of choice; I'm sure it's similar with other FTP apps). rssh instructions appropriated (with appreciation!) from http://www.cyberciti.biz/tips/linux-unix-restrict-shell-access-with-rssh.html Set up virtual interfaces ifconfig eth1:1 192.168.1.3 up #start up the virtual interface cd /etc/sysconfig/network-scripts/ cp ifcfg-eth1 ifcfg-eth1:1 #copy default script and match name to our virtual interface vi ifcfg-eth1:1 #modify eth1:1 script #ifcfg-eth1:1 | modify so it looks like this: DEVICE=eth1:1 IPADDR=192.168.1.3 NETMASK=255.255.255.0 NETWORK=192.168.1.0 ONBOOT=yes NAME=eth1:1 Add more Virtual interfaces as needed by repeating. Because of the ONBOOT=yes line in the ifcfg-eth1:1 file, this interface will be brought up when the system boots, or the network starts/restarts. service network restart Shutting down interface eth0: [ OK ] Shutting down interface eth1: [ OK ] Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: [ OK ] Bringing up interface eth1: [ OK ] ping 192.168.1.3 64 bytes from 192.168.1.3: icmp_seq=1 ttl=64 time=0.105 ms And this is where I'm at. I will keep editing this as I make progress. Any tips on how to Configure virtual interfaces/ip based virtual hosts for SSL, setting up a CA, or anything else would be appreciated.

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• Google Drive Update keeps throwing an error when I try to save a thumbnail

  - by Dano64

  The Base64 string checks out fine. I was able to export it to another website and download it again as my image. When I try to do an update using the Drive Javascript api, it just keeps returning this error: Invalidvaluefor:Notavalidbase64bytestring I also true making the string URL safe. Per this page https://google-api-client-libraries.appspot.com/documentation/drive/v2/python/latest/drive_v2.files.html Am I doing something wrong here, the documentation says send Base64, the string is valid and, the string is intact throughout the process, but Google will not accept it? I am using the javascript api, I think there is maybe a bug sending the thumbnail using the javascript api. This is the request Request URL:https://www.googleapis.com/upload/drive/v2/files/?uploadType=multipart Request Method:POST Status Code:400 Bad Request **Request Headers** :host:www.googleapis.com :method:POST :path:/upload/drive/v2/files/?uploadType=multipart :scheme:https :version:HTTP/1.1 accept:*/* accept-encoding:gzip,deflate,sdch accept-language:en-US,en;q=0.8 authorization:Bearer ya29.AHES6ZQr...YXDacdY4 content-length:14313 content-type:multipart/mixed; boundary="--mpart_delim" origin:https://www.googleapis.com x-javascript-user-agent:google-api-javascript-client/1.1.0-beta x-origin:https://app.pinteract.com x-referer:https://app.pinteract.com **Query String Parameters** uploadType:multipart **Request Payload** ----mpart_delim Content-Type: application/json {"id":null,"title":"Test Pinup.pint","mimeType":"application/vnd.pinteract.pint","thumbnail":{"mimeType":"image/png","image":"iVBORw0KGgoAAAANSUh...UVORK5CYII%3D"}} ----mpart_delim Content-Type: application/vnd.pinteract.pint Content-Transfer-Encoding: binary { "header" : {"id":"215A660A"} "members" : [ {"id":"100523752012631912873"} ], "manifest" : [ {"id":"0000","ele":[],"own":"100523752012631912873","dtc":1371679680000,"txt":"&Delta; Created","typ":0} ], "elements" : [ {"id":"0F54","x":560,"y":264,"bak":"#44ff44","own":"100523752012631912873","srt":"544","sta":0,"wid":120,"hgt":120,"dtc":0,"rec":"","txt":"This is Note"} ] } ----mpart_delim-- **Response Headers** content-length:10848 content-type:application/json date:Mon, 01 Jul 2013 14:41:33 GMT server:HTTP Upload Server Built on Jun 25 2013 11:32:14 (1372185134) status:400 Bad Request version:HTTP/1.1 This is the Response { "error": { "errors": [ { "domain": "global", "reason": "invalid", "message": "Invalid value for: Not a valid base64 byte string: iVBORw0KGgoAAAANSUhEUg...AASUVORK5CYII%3D" } ], "code": 400, "message": "Invalid value for: Not a valid base64 byte string: iVBORw0KGgoAAAANSU...lRtkAAAAASUVORK5CYII%3D" } } Raw Base64 String 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"}],"code":400,"message":"Invalidvaluefor:Notavalidbase64bytestring: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 Url Encoded Base64 String iVBORw0KGgoAAAANSUhEUgAAAGAAAABgCAYAAADimHc4AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAADjVJREFUeNrsXX2MHVUVP3fevH27SxfKhyBCsIqoKOhCBBISY5Hyj2JSGuXLP6SJwYAYICgxsUBr1AhqbE2I8Q9jjYE%2FCLFbP4IxVbaIYjAmS0wUC6ELRGy7tPt2t9vd997MPd6Z%2B3Xunfsq1r7tvNe56TAfO2%2FezO93zu%2Fce%2B6ZB0DVqla1qlWtalWrWtWqVrWqVa1qJ1Nj%2FXCTm5%2BbHeUcz9%2B3f25tmvLVSYePIyLIBRhX24yxKXH63Kljw5Ni97UfbVhzpCLgGNs3%2Fjp%2F%2Fr9en72l3UnWCsCvSjrpmQA54Nkq28q3FQn5mucL5OuIsUPi6f5Si6KJVasaT26%2F%2BT1vVgS8hfbl3%2B27br65dE%2Br1VknrH6IIfkjolmh%2FA8hwYJv1lySInYXhXc8W49r235%2B%2ByVPVQQE2lee3n%2Fd3OzS5tZS%2B2oWurlMYgj4qI45HsApCZYAzgFSsU7FfhSx5%2BtxtHnnHR9%2BqiJAtPsnD1y4MLf09aXF9q3ZzTAmb8ohQaKtHEDLkGv9qIBHBbgmICXrlKyjKHoirkWbfn3X%2BEsnLQH37dr3mebs4o8x4WMSfGbAtyQoDSLga8BBeQJqqXE8QQIt12D2syVR2%2BLcxVpcu%2F23d1%2F%2B%2BElFwPdeXB555eWZ7x453LozEvuRtvqMgCyAhm7QyI7Sf7BEcI4mCNP9lBKhrD9R2zkJqVwLWfpOYyje8tSXLlsceAIy8Pf8Y98vOq1kXQZ8JG5By06kLZ%2F5%2Bm8DcEiCMt3XXpCTwN0YkKrYkFu%2F0CfpCSC3M1IEEeILJ0ca9et%2Fc%2FfliwNLQAb%2BSxR8JTkRJUAdy4DOtxCdQGyDb6ALyq0HuEHYyo%2BOAYlaUkVI7hkAk8ON%2BPpd935kceAIMOC3BfjiayUB1gO0FAG4QTjfN9pTjAO0%2F0%2B9ICeDBmGyJDQoEzIyjxCr3YKET%2F7%2BvitWhIRopQh4%2BZ%2F7fyAtX4PPQG%2FX1JLt19Rit8XfIjDb7uftdWqa0Ox8sNfIF%2FCvK4mPFAB6yf4uaPzYYit5dKVwWREC7vrV619sLXU%2BL8Gg4AEBlXgFBdN8JgQ6M%2BfUHJDJNWiQD1yHkXOlDLLMcz53xTf%2FdNtASNBXn5l598y%2B%2Bb%2BL3k2j5gFdU1KkA2%2FkdEOR9IDsOpSCQBN4M%2F3nJuCaOEC03pEhJTuJJ0XtbEHsxBG75PmvXb2nrz3gzZnD2wVCjQgYsUAgVm2lRwdiR6LA9w4lS2YNnlcRq%2FavB653MfrdnueJf%2FXllP%2BkryXozl%2B%2BtoF30o9GnoVrvZU9HtINNaD44BFgHSmx4DP%2FswRkKz9F3WcGCOt9NQ0MwtWXbnn2xr4loL2cbNYDLAdcQgTz9FpbtAaUERANsJEFklHvIOMISiBzrqlJD4w%2FyKJJEL2lh%2FqSgDt2vrohTdJL%2FQdzBlvMtUQ6Io6cXgwBngZWD%2FxIeZVeM49o5g30KEGh%2B1Td4g%2B8f%2FMfbuw7Atotbf0EVOchmQuGts5APsh4UNCbSBoDPE%2FoYt3B48zekzEIVF7Ae%2BcFPSHgCxOvXpwm%2FFLHslQ6GZgLfNfFk54iuMwhyAf2aJLTfcHg8cwLLnzwmQ%2F2DQFCem4pgOR4gzviLQDD3gIRzE1h%2BPshyaEB3wPYORccImVyUHR1P9s3BCSd9CZ%2FsOFPsjCV4ymkHViYCJOmYEV5co8xF1DnHrDwfe6cg1wzdZCRE8WY4tN9QYAY9Z4rBj7vzZNpiMWRHqJ5yKMCQcBg3cgJkpFPzjtkRw7x%2BruwqxQBkUxNnGgXXbBp8rzSE3BksT3uZDDJUJahD7hKsGFACug%2BCx8vegQWRtEsOOzHwO1h8WEQncOiSzpeegLaneQqB2wMEKHWGHhgigUzs2FYsHyAcNzonmfBgneZBfDoORk03nlF6QkQffCL3WdFM4uFSLUWHcuzTqPrTtCdkvSMlwb5ozZVPQHo3g8L%2BqgjOZ7t5HvHvScUH%2FceUMrPrmkTzW%2BagbRrZswIkXmGKHUbPWCQWDH6shUK8n4g9aVQGQFT3%2BkYguGdGAoWHOas0nsAqowlnbUyD%2BBPpoNX56M%2FR7wAzHkItjLCDaQO1gZXBOcQ3Tego4dzYAsBMBw5yukB8o6ZARiVZSs7l8e8NSOKr60euwRM39J1bZBZG%2FKsRTuxhRoE%2BQ6T3gZqNPk0pWUXsfwEaA%2FIHyQHX1sZM%2FCiY9OWLH0GJ66ZSwYJuoYgDxMj9QiFeiFbzIWGA3oOBKrvdIWF9j9Z8NUPHoBoQUVq7RJsbnpCTIFNgEeZUANFghmZogWeYVG6bAmirYqgJSwFItC3eNdwqIdwpN7SBx7A0YZdRCo1ECQiMlYvk3WcDJAi7QGBYAzepDyqSXlTpKXWEPAI7sQk7RmWJFPeqGXInNcHHtBKUhiJa%2FKBsoq0CBSwQJIENg2RP7AqyNIdpYhYnfYI9KYo%2FSlJWxdKSSHgBTyAQzfZcqc9OfGG0veC4ijaTcsEgdZskqo1W7%2FjVrbpEhL6N7kPzpwu99dqHljPDaNXqGuvby0cQyQpY%2BEK8BSsV4i2u%2FQecLjdmR4biq2Gc5WCZmgSXJwzKeYkqqKyfDqyjZT12VEtFrqZ6FTC0bJ0S7AGMD8PSB2R8RjrOUhK3FPQniIlSpAxXXoCFlrJ1Kp6rLScmVElU2gzf5TFbJIMzawYM8GWBXI4tEoaObrvB5A6UBMLPI8qWj6aLmdeyqjApx6QSqKmjjdePSlL%2BdQPX5gdjqPVea2OKqqyBVFuXZCukgOg9TvZMVuamGc3%2FRJFJAMsXqyOowW53CtF0UW6VtK4qpgGaIvtlrhOS6yz8hS5na2xefDha0%2Fvg4FYrsUT4v5vy1PD3JUfSjnKMZvt66PNxWA%2Bk8VtahjdHhCQFzVoebpTC0S2uV%2B2SOOCkSFl%2FWitPy9hlN4x0TcTMjOLrZ1GRwMFsno77yVxWjzlWqUTfNH%2Fu1to637GBT8%2Fjxbr6uCOhBR1TqplCKTscNDygzt7gVXPKuM%2B8ejUbKOWyRCt61TlHqYQihVKSY7%2Bloy0eqZAgkCRrl8d7b8Zk5rXlVSlnC5bF8dasiJOV8Zp6RHb0DzUA%2FnpmQfkwXi5s80CwF2rRbdc0PEQ9eJEwdqJ9yQFj%2BHBc5MA%2BNx5m9LuJ0R%2B8hhhJCgnd1uvcOoZAS%2Fsn9sqBmVNCnoIzAJwafdj%2BuUKnvKuwCeBgCutHozM%2BDEhUYDbNSgScu1vit2tfUfA%2FCPrmgvtRHqBM4gCByBOQKTAUPAl8FwAb4tpE97dS5JuZFNZUtadKsATQ4RYAIhHwLameJa%2BIyBrfzswv3WxI7yASIEPjvumilpS1xMK3UjHe3xC1DXQexmDyhEJwh2OLviuJwjgcWsvMep5efr4t55b%2F%2FZThnbk4wBw%2B%2F6F2n3wS0v8EnUyIYM0tex1Q8l26qUkUjViThT4HZSLDLyQB9%2BODLzZuTcI65%2FoawKyduW3%2F7zj9OH6%2BihEgDcA82t3GEBxMkQBqntFvPC%2BMDjdS5qm0IGWgt%2FRwKveT7Yvjk8I8G%2FoNTbxShDw4qHDGz901tia0bg2jirvo9fcIQC7lJ%2Bgk6RHPdEPUMhcOj9ZAMW353O5kgAroNU2pxKUpxw2rgQ2K%2FaS3jsf3D1%2B%2Fqrhp0fE2MCkIzwJ6lYy6Fu%2FJcCf8QqMB8Baf6JAT8i2lp9EyY441hSfuWbukXVTA0VATsIDu8fPO6Xx9HBGAi1NJ2XkAMUKtcKcJ523JeBz5ycLbMo5VUDbtZYgua%2FBF72fpvjMNc0VAn%2FFCcjaBQ9Mjr9jtJF7An1zhQZiO0VvM6VQSEdbDwCPACpDKenVpMbybW9Hb2ejXfHpFQX%2FhBCQk7Bpcvzs4aEdo3G0hr4fHEGoiNdNRdOUhEuElSOdTEvABt2EkNFx%2Bv3CCwCmUfZ4plYaixP2Yx2n3r9r9QWnNHasrsdrQ68KwX8hAOiEjJ421H18oGkFRQSXg6%2BO7gUZr4BJcYUbejnYKiUBuq3ZNHnPGY36Q42IrWYBL2B%2B4Szt%2F2vZAfJDTd6kigZeSw7J82R6v2X2kXVbT%2BTzl%2BIHm4Q3rDlnuP6Q6KbeVjfxAPWbis7NojcdqSfWubJ8riUIrAfo1ENiPAS2i2NbRE9n%2BkQ%2Fe6l%2Bsuw0QcSZwhtEL8kQQUvbTb0aLec0lk9Gv2AHYwkhQvzbLpYthx6%2Bdrosz1zKH%2B3LPGIsrq2PDu79%2FvA5F8p3igMEAFjZQV%2BCrCxNicM%2FFdY%2FUQaL7wsCdBsZGcH6GefB2EVXwsi574Pa294FSeM0aNVPpeMyFYQRhtrzEC0dgnTmFWi9sQcW9k5NLr2x5%2BPQm7ra%2FklF%2FF8WcngG4r1%2FhLG5F%2BHsQ%2BfA6OgoDDUaEMdx9rtv0vLTFNqdDrSWl2FhYQEOHNgPyeysCLOzzAsfpWsRDH5jZfb2gSQA3fQFKzMJJ4sHlJaEeFA9QHlB6G1YLFNMGGAPQPqMrKyeEMNgN5pg5V08AU6kNwwsASQQUy%2FnXdzkhElSPODgs4DMhkioPKA3RJgfvwoFCN6FkIqA4xwDQgTo90eSKgj3oHGe0q5oHBgVZwR0ql5Qz2MAhjwg%2B2O7Goj1VvtpD6jugb8AJUrMDagEcToSjgn48yCrzkvTBjYZx7khoK6e82AZgu5JQ4Bqi%2BoZ%2F10m3e8bAgSQE8dOQE7CJMh3e5fL%2BoylJiCKom3HSoBYDqdp%2BpjYLfX%2FTa%2FUBBw5cmSSMbb1WAhgLNqYJMnLZZfL0seAZrN5rwDzfyGhWa%2FXNx48%2BOaT%2FRCv%2BiIIT0%2FvvbfRaFwjvOFoMSErLdxeq9Uu27v3le390mFg0IftpptvXetURXDefPyxn01B1apWtapVrWpVq1rVqla1t9L%2BI8AAvydNUrElRtkAAAAASUVORK5CYII%3D

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• Managing BES Software Configurations

  - by DaveJohnston

  Hi, I am having problems with OTA deployment of a bespoke application that we have written. I have read loads of threads elsewhere and I have got mixed help, but for my particular case none of it has really helped. So I thought I would explain my exact situation and try and get some help here. I am running BES version 4.1.5 (Bundle 79) for Microsoft Exchange. The application we have written is split into 5 modules, which we control, and another 4 modules which are 3rd party libraries that we require. So for our modules the version numbers are regularly changing but for the others they are pretty much always going to remain the same. We have an alx file set up that identifies all of the files required and in fact I am able to create a software configuration and deploy the application with no problems. What I am trying to do however is maintain multiple versions of our application on the BES and be able to select which version I want to deploy to each user. I have tried this a number of ways (as I said I have read lots of other threads with solutions to this problem) but each seems to come with its own problem. First of all I tried just creating different configurations for each version of the application, but because they each had the same application ID the BES informed me that I couldn't do this. I read somewhere that the solution was to create a second shared folder (e.g. \Program Files\Common Files\RIM) and add the apploader stuff and the new version of the app to this folder. I could then create a second software configuration that would have the same application ID. The result of this seemed promising to start with. When I changed the config that was assigned to a user the new version was pushed out fine. But afterwards the BES reported that the device state was invalid, which meant I couldn't push anything else until I reactivated the device. I guess this is because the first config was never set to disallowed so the old version wasn't removed and the device essentially reported that it had multiple versions of the same application installed. The next suggestion I got was to change the application ID for each version, e.g. to include the version number. This meant that each version of the application could be included in a single configuration and I could set one to disallowed and the other to required. Initially this worked and the first version was deployed. But when I switched (i.e. the old version became disallowed and the new version required) the BES reported upgrade required and removed the old version. The device restarts and the old version is gone but the new version is not pushed out. I checked the BES and it still said Upgrade Required. I checked the log files and found: [40000] (11/12 09:50:27.397):{0xEB8} {[email protected], PIN=1234, UserId=2}SCS::PollDBQueueNewRequests - Queuing POLL_FOR_MISSING_APPS request [40000] (11/12 09:50:28.241):{0xE9C} RequestHandler::PollForMissingApps: Starting Poll For Missing Apps. [40304] (11/12 09:50:28.241):{0xE90} WorkerThreadPool:: ThreadProc(): Thread released with empty queue [40000] (11/12 09:50:28.241):{0xE9C} SCS::RemoveAppDeliveryRequests - No App Delivery Requests purged for User id 2 [30000] (11/12 09:50:28.960):{0xE9C} Discard duplicate module group "name" on device [30000] (11/12 09:50:28.960):{0xE9C} Discard duplicate module group "name" on device [40000] (11/12 09:50:29.163):{0xE9C} RequestHandler::PollForMissingApps: Completed Poll For Missing Apps, elapsed time 0.922 seconds. (You will notice I have removed actual names and email addresses etc for privacy reasons. But one question: where does the name of the module group come from? In my case it is close to the application ID but doesn't include the version number that I added at the end in order to get it to work. Is that information embedded in a COD file or something??) So it is reporting a duplicate module group on the device? What does this mean? I checked the device properties (as reported on the BES) and it confirms that the modules with the old version numbers are still present on the device. So the application has been removed but not the modules?? I checked the device and the modules are gone, so it is just the BES reporting that they are still there?? I checked the database and it has the modules in questions in the SyncDeviceMgmt table. If I delete these from the DB the BES changes to report Install Required, and low and behold the new version of the app is pushed out. So at the end of all that, my question is: does anyone have any other suggestions of how to handle upgrading our bespoke application OTA from the BES? Or can anyone point out something I am doing wrong in what I described above that might solve the problems I am having? I guess the question is why does the database maintain that the modules are on the device after they are removed? Thanks for any help you can provide.

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• Win32 -- Object cleanup and global variables

  - by KaiserJohaan

  Hello, I've got a question about global variables and object cleanup in c++. For example, look at the code here; case WM_PAINT: paintText(&hWnd); break; void paintText(HWND* hWnd) { PAINTSTRUCT ps; HBRUSH hbruzh = CreateSolidBrush(RGB(0,0,0)); HDC hdz = BeginPaint(*hWnd,&ps); char s1[] = "Name"; char s2[] = "IP"; SelectBrush(hdz,hbruzh); SelectFont(hdz,hFont); SetBkMode(hdz,TRANSPARENT); TextOut(hdz,3,23,s1,sizeof(s1)); TextOut(hdz,10,53,s2,sizeof(s2)); EndPaint(*hWnd,&ps); DeleteObject(hdz); DeleteObject(hbruzh); // bad? DeleteObject(ps); // bad? } 1)First of all; which objects are good to delete and which ones are NOT good to delete and why? Not 100% sure of this. 2)Since WM_PAINT is called everytime the window is redrawn, would it be better to simply store ps, hdz and hbruzh as global variables instead of re-initializing them everytime? The downside I guess would be tons of global variables in the end _ but performance-wise would it not be less CPU-consuming? I know it won't matter prolly but I'm just aiming for minimalistic as possible for educational purposes. 3) What about libraries that are loaded in? For example: // // Main // int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { // initialize vars HWND hWnd; WNDCLASSEX wc; HINSTANCE hlib = LoadLibrary("Riched20.dll"); ThishInstance = hInstance; ZeroMemory(&wc,sizeof(wc)); // set WNDCLASSEX props wc.cbSize = sizeof(WNDCLASSEX); wc.lpfnWndProc = WindowProc; wc.hInstance = ThishInstance; wc.hIcon = LoadIcon(hInstance,MAKEINTRESOURCE(IDI_MYICON)); wc.lpszMenuName = MAKEINTRESOURCE(IDR_MENU1); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)COLOR_WINDOW; wc.lpszClassName = TEXT("PimpClient"); RegisterClassEx(&wc); // create main window and display it hWnd = CreateWindowEx(NULL, wc.lpszClassName, TEXT("PimpClient"), 0, 300, 200, 450, 395, NULL, NULL, hInstance, NULL); createWindows(&hWnd); ShowWindow(hWnd,nCmdShow); // loop message queue MSG msg; while (GetMessage(&msg, NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } // cleanup? FreeLibrary(hlib); return msg.wParam; } 3cont) is there a reason to FreeLibrary at the end? I mean when the process terminates all resources are freed anyway? And since the library is used to paint text throughout the program, why would I want to free before that? Cheers

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• g++ symbol versioning. Set it to GCC_3.0 using version 4 of g++

  - by Ismael

  Hi all I need to implemente a Java class which uses JNI to control a fiscal printer in XUbuntu 8.10 with sun-java6-jdk installed. The structure is the following: EpsonDriver.java loads libEpson.so libEpson is linked dynamically with EpsonFiscalProtocol.so ( provided by Epson, no source available ) and pthread I use javah to generate the header file, and the code compiles. Then I put the libEpson.so in $JAVA_HOME/jre/lib/i386, and EpsonDriver.java uses an static initializar System.loadLibrary("libEpson") That part works, however, when I try to use any of the methods I get an unsatisfiedLinkError exception. Some time ago, a coworker did a version that works, and using objdump -Dslx I got the following: Program Header: LOAD off 0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**12 filesz 0x0000ccc4 memsz 0x0000ccc4 flags r-x LOAD off 0x0000d000 vaddr 0x0000d000 paddr 0x0000d000 align 2**12 filesz 0x00000250 memsz 0x00044a5c flags rw- DYNAMIC off 0x0000d014 vaddr 0x0000d014 paddr 0x0000d014 align 2**2 filesz 0x000000f0 memsz 0x000000f0 flags rw- NOTE off 0x000000d4 vaddr 0x000000d4 paddr 0x000000d4 align 2**2 filesz 0x00000024 memsz 0x00000024 flags r-- STACK off 0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**2 filesz 0x00000000 memsz 0x00000000 flags rw- Dynamic Section: NEEDED EpsonFiscalProtocol.so NEEDED libpthread.so.0 NEEDED libstdc++.so.6 NEEDED libm.so.6 NEEDED libc.so.6 SONAME libcom_tichile_jpos_EpsonSerialDriver.so INIT 0x00007254 FINI 0x0000ba08 GNU_HASH 0x000000f8 STRTAB 0x00001f50 SYMTAB 0x00000ae0 STRSZ 0x00002384 SYMENT 0x00000010 PLTGOT 0x0000d108 PLTRELSZ 0x00000008 PLTREL 0x00000011 JMPREL 0x0000724c REL 0x000045c4 RELSZ 0x00002c88 RELENT 0x00000008 TEXTREL 0x00000000 VERNEED 0x00004564 VERNEEDNUM 0x00000002 VERSYM 0x000042d4 RELCOUNT 0x000000ac Version References: required from libstdc++.so.6: 0x056bafd3 0x00 05 CXXABI_1.3 0x08922974 0x00 04 GLIBCXX_3.4 required from libc.so.6: 0x0b792650 0x00 03 GCC_3.0 0x0d696910 0x00 02 GLIBC_2.0 In the recently compiled file I get: Program Header: LOAD off 0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**12 filesz 0x00005300 memsz 0x00005300 flags r-x LOAD off 0x00005300 vaddr 0x00006300 paddr 0x00006300 align 2**12 filesz 0x00000274 memsz 0x00010314 flags rw- DYNAMIC off 0x00005314 vaddr 0x00006314 paddr 0x00006314 align 2**2 filesz 0x000000e0 memsz 0x000000e0 flags rw- EH_FRAME off 0x00004a00 vaddr 0x00004a00 paddr 0x00004a00 align 2**2 filesz 0x00000154 memsz 0x00000154 flags r-- Dynamic Section: NEEDED libstdc++.so.5 NEEDED libm.so.6 NEEDED libgcc_s.so.1 NEEDED libc.so.6 SONAME EpsonFiscalProtocol.so INIT 0x00001cb4 FINI 0x00004994 HASH 0x000000b4 STRTAB 0x00000da4 SYMTAB 0x000004f4 STRSZ 0x00000acf SYMENT 0x00000010 PLTGOT 0x0000640c PLTRELSZ 0x00000270 PLTREL 0x00000011 JMPREL 0x00001a44 REL 0x000019dc RELSZ 0x00000068 RELENT 0x00000008 VERNEED 0x0000198c VERNEEDNUM 0x00000002 VERSYM 0x00001874 RELCOUNT 0x00000004 Version References: required from libstdc++.so.5: 0x056bafd2 0x00 04 CXXABI_1.2 required from libc.so.6: 0x09691f73 0x00 03 GLIBC_2.1.3 0x0d696910 0x00 02 GLIBC_2.0 So I suspect the main diference is the GCC_3.0 symbol I compile libcom_tichile_EpsonSerialDriver.so with the following command ( from memory as I not at work right now ) g++ -Wl,-soname=.... -shared -I/*jni libraries*/ -o libcom_tichile_jpos_EpsonSerialDriver -lEpsonFiscalProtocol -lpthread Is there any way to tell g++ to use that symbol version? Or any idea in how to make it work? EDIT: I have another non-working version with the followin dump: Program Header: LOAD off 0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**12 filesz 0x0000bf68 memsz 0x0000bf68 flags r-x LOAD off 0x0000cc0c vaddr 0x0000cc0c paddr 0x0000cc0c align 2**12 filesz 0x000005e8 memsz 0x00044df0 flags rw- DYNAMIC off 0x0000cc20 vaddr 0x0000cc20 paddr 0x0000cc20 align 2**2 filesz 0x000000f8 memsz 0x000000f8 flags rw- EH_FRAME off 0x0000b310 vaddr 0x0000b310 paddr 0x0000b310 align 2**2 filesz 0x000002bc memsz 0x000002bc flags r-- STACK off 0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**2 filesz 0x00000000 memsz 0x00000000 flags rw- RELRO off 0x0000cc0c vaddr 0x0000cc0c paddr 0x0000cc0c align 2**0 filesz 0x000003f4 memsz 0x000003f4 flags r-- Dynamic Section: NEEDED EpsonFiscalProtocol.so NEEDED libpthread.so.0 NEEDED libstdc++.so.6 NEEDED libm.so.6 NEEDED libgcc_s.so.1 NEEDED libc.so.6 SONAME libcom_tichile_jpos_EpsonSerialDriver.so INIT 0x000055d8 FINI 0x0000a968 HASH 0x000000f4 GNU_HASH 0x00000a30 STRTAB 0x00002870 SYMTAB 0x00001410 STRSZ 0x00002339 SYMENT 0x00000010 PLTGOT 0x0000cff4 PLTRELSZ 0x00000168 PLTREL 0x00000011 JMPREL 0x00005470 REL 0x00004ea8 RELSZ 0x000005c8 RELENT 0x00000008 VERNEED 0x00004e38 VERNEEDNUM 0x00000002 VERSYM 0x00004baa RELCOUNT 0x00000001 Version References: required from libstdc++.so.6: 0x056bafd3 0x00 05 CXXABI_1.3 0x08922974 0x00 03 GLIBCXX_3.4 required from libc.so.6: 0x09691f73 0x00 06 GLIBC_2.1.3 0x0d696914 0x00 04 GLIBC_2.4 0x0d696910 0x00 02 GLIBC_2.0 Now I think the main difference is in the GCC_3.0 symbol/ABI EDIT: Luckily, a coworker found a way to talk to the printer using Java

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• Can this be improved? Scrubbing of dangerous html tags.

  - by chobo2

  I been finding that for something that I consider pretty import there is very little information or libraries on how to deal with this problem. I found this while searching. I really don't know all the million ways that a hacker could try to insert the dangerous tags. I have a rich html editor so I need to keep non dangerous tags but strip out bad ones. So is this script missing anything? It uses html agility pack. public string ScrubHTML(string html) { HtmlDocument doc = new HtmlDocument(); doc.LoadHtml(html); //Remove potentially harmful elements HtmlNodeCollection nc = doc.DocumentNode.SelectNodes("//script|//link|//iframe|//frameset|//frame|//applet|//object|//embed"); if (nc != null) { foreach (HtmlNode node in nc) { node.ParentNode.RemoveChild(node, false); } } //remove hrefs to java/j/vbscript URLs nc = doc.DocumentNode.SelectNodes("//a[starts-with(translate(@href, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'javascript')]|//a[starts-with(translate(@href, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'jscript')]|//a[starts-with(translate(@href, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'vbscript')]"); if (nc != null) { foreach (HtmlNode node in nc) { node.SetAttributeValue("href", "#"); } } //remove img with refs to java/j/vbscript URLs nc = doc.DocumentNode.SelectNodes("//img[starts-with(translate(@src, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'javascript')]|//img[starts-with(translate(@src, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'jscript')]|//img[starts-with(translate(@src, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'vbscript')]"); if (nc != null) { foreach (HtmlNode node in nc) { node.SetAttributeValue("src", "#"); } } //remove on<Event> handlers from all tags nc = doc.DocumentNode.SelectNodes("//*[@onclick or @onmouseover or @onfocus or @onblur or @onmouseout or @ondoubleclick or @onload or @onunload]"); if (nc != null) { foreach (HtmlNode node in nc) { node.Attributes.Remove("onFocus"); node.Attributes.Remove("onBlur"); node.Attributes.Remove("onClick"); node.Attributes.Remove("onMouseOver"); node.Attributes.Remove("onMouseOut"); node.Attributes.Remove("onDoubleClick"); node.Attributes.Remove("onLoad"); node.Attributes.Remove("onUnload"); } } // remove any style attributes that contain the word expression (IE evaluates this as script) nc = doc.DocumentNode.SelectNodes("//*[contains(translate(@style, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'expression')]"); if (nc != null) { foreach (HtmlNode node in nc) { node.Attributes.Remove("stYle"); } } return doc.DocumentNode.WriteTo(); } Edit 2 people have suggested whitelisting. I actually like the idea of whitelisting but never actually did it because no one can actually tell me how to do it in C# and I can't even really find tutorials for how to do it in c#(the last time I looked. I will check it out again). How do you make a white list? Is it just a list collection? How do you actual parse out all html tags, script tags and every other tag? Once you have the tags how do you determine which ones are allowed? Compare them to you list collection? But what happens if the content is coming in and has like 100 tags and you have 50 allowed. You got to compare each of those 100 tag by 50 allowed tags. Thats quite a bit to go through and could be slow. Once you found a invalid tag how do you remove it? I don't really want to reject a whole set of text if one tag was found to be invalid. I rather remove and insert the rest. Should I be using html agility pack?

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• What are good CLI tools for JSON?

  - by jasonmp85

  General Problem Though I may be diagnosing the root cause of an event, determining how many users it affected, or distilling timing logs in order to assess the performance and throughput impact of a recent code change, my tools stay the same: grep, awk, sed, tr, uniq, sort, zcat, tail, head, join, and split. To glue them all together, Unix gives us pipes, and for fancier filtering we have xargs. If these fail me, there's always perl -e. These tools are perfect for processing CSV files, tab-delimited files, log files with a predictable line format, or files with comma-separated key-value pairs. In other words, files where each line has next to no context. XML Analogues I recently needed to trawl through Gigabytes of XML to build a histogram of usage by user. This was easy enough with the tools I had, but for more complicated queries the normal approaches break down. Say I have files with items like this: <foo user="me"> <baz key="zoidberg" value="squid" /> <baz key="leela" value="cyclops" /> <baz key="fry" value="rube" /> </foo> And let's say I want to produce a mapping from user to average number of <baz>s per <foo>. Processing line-by-line is no longer an option: I need to know which user's <foo> I'm currently inspecting so I know whose average to update. Any sort of Unix one liner that accomplishes this task is likely to be inscrutable. Fortunately in XML-land, we have wonderful technologies like XPath, XQuery, and XSLT to help us. Previously, I had gotten accustomed to using the wonderful XML::XPath Perl module to accomplish queries like the one above, but after finding a TextMate Plugin that could run an XPath expression against my current window, I stopped writing one-off Perl scripts to query XML. And I just found out about XMLStarlet which is installing as I type this and which I look forward to using in the future. JSON Solutions? So this leads me to my question: are there any tools like this for JSON? It's only a matter of time before some investigation task requires me to do similar queries on JSON files, and without tools like XPath and XSLT, such a task will be a lot harder. If I had a bunch of JSON that looked like this: { "firstName": "Bender", "lastName": "Robot", "age": 200, "address": { "streetAddress": "123", "city": "New York", "state": "NY", "postalCode": "1729" }, "phoneNumber": [ { "type": "home", "number": "666 555-1234" }, { "type": "fax", "number": "666 555-4567" } ] } And wanted to find the average number of phone numbers each person had, I could do something like this with XPath: fn:avg(/fn:count(phoneNumber)) Questions Are there any command-line tools that can "query" JSON files in this way? If you have to process a bunch of JSON files on a Unix command line, what tools do you use? Heck, is there even work being done to make a query language like this for JSON? If you do use tools like this in your day-to-day work, what do you like/dislike about them? Are there any gotchas? I'm noticing more and more data serialization is being done using JSON, so processing tools like this will be crucial when analyzing large data dumps in the future. Language libraries for JSON are very strong and it's easy enough to write scripts to do this sort of processing, but to really let people play around with the data shell tools are needed. Related Questions Grep and Sed Equivalent for XML Command Line Processing Is there a query language for JSON? JSONPath or other XPath like utility for JSON/Javascript; or Jquery JSON

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• How do I solve "Two different CRTLDLLs are loaded" when using packages in C++ Builder 2010?

  - by David M

  Hi, We are trying to split up our monolithic EXE into a combination of an EXE and several packages. So far, we have one package that we're trying to use, and when running the EXE Codeguard shows the following error on startup: CG Error Two different CRTLDLLs are loaded. CG might report false errors (C:\Windows\system32\CC32100MT.DLL) (D:\Projects\Foo\Bar.bpl) OK I read this as two different runtime libraries being loaded - one, the correct one (CC32100MT.dll), one incorrect, which is the package we're trying to use. Continuing to run the program shows odd errors, especially casting between classes or passing a pointer to a class as a parameter in a method that crosses the EXE/DLL boundary. Codeguard itself doesn't show any other errors at all though. How do we solve this? Some more details We've looked at as many things as we (the developer working on this and I) can collectively think of: Each project is built using runtime packages. The EXE host lists Bar in its package list. Each project is set to compile with dynamic RTL. However, changing this does not solve the problem. The package is linked to the EXE via its BPI file, but linking via a LIB makes no difference either. The EXE and BPL are compiled with the same project settings, where the same options exist for both types of project. We think, anyway :) There is only one copy of the BPL and BPI on the system: it's definitely linking to the right one. Examining the EXE and BPL with Depends and TDump show they are both using C:\Windows\system32\CC32100MT.DLL. They should both be using the one RTL. Creating a new project (a plain VCL forms application) and linking to the BPL (via its BPI) works fine. Something in the process of adding all the files and LIBs that make our EXE contain the code it needs to changes this, but we haven't been able to figure out what. The LIBs all either correspond to DLLs we use (flat C interface, usually look as though they were built with MSVC) or are simple projects with lots of related files, compiled to a lib for the purpose of linking into the EXE - these correspond roughly to the areas of the program we want to split to BPLs, by the way. There don't seem to be project options for the LIB projects that would affect RTL linking, unless we've missed them. I have exhaustively hunted through Depends and looked at all RTL and CC32*.dll files the EXE and every single DLL references. All are identical: rtl140.bpl and CC32100MT.DLL. Fully qualified paths show they are the same files, too. Everything should be using the one same run-time library. We're stumped. Absolutely stumped. We've had other problems using BPLs (they seem to be surprisingly tricky things, especially using C++) but have managed to solve them all. This one we've had no luck at all and we'd really appreciate any insights :) We're using C++Builder 2010 (as part of RAD Studio actually, but with little Delphi code apart from components.)

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• What does the `forall` keyword in Haskell/GHC do?

  - by JUST MY correct OPINION

  I've been banging my head on this one for (quite literally) years now. I'm beginning to kinda/sorta understand how the foreach keyword is used in so-called "existential types" like this: data ShowBox = forall s. Show s => SB s (This despite the confusingly-worded explanations of it in the fragments found all around the web.) This is only a subset, however, of how foreach is used and I simply cannot wrap my mind around its use in things like this: runST :: forall a. (forall s. ST s a) -> a Or explaining why these are different: foo :: (forall a. a -> a) -> (Char,Bool) bar :: forall a. ((a -> a) -> (Char, Bool)) Or the whole RankNTypes stuff that breaks my brain when "explained" in a way that makes me want to do that Samuel L. Jackson thing from Pulp Fiction. (Don't follow that link if you're easily offended by strong language.) The problem, really, is that I'm a dullard. I can't fathom the chicken scratchings (some call them "formulae") of the elite mathematicians that created this language seeing as my university years are over two decades behind me and I never actually had to put what I learnt into use in practice. I also tend to prefer clear, jargon-free English rather than the kinds of language which are normal in academic environments. Most of the explanations I attempt to read on this (the ones I can find through search engines) have these problems: They're incomplete. They explain one part of the use of this keyword (like "existential types") which makes me feel happy until I read code that uses it in a completely different way (like runST, foo and bar above). They're densely packed with assumptions that I've read the latest in whatever branch of discrete math, category theory or abstract algebra is popular this week. (If I never read the words "consult the paper whatever for details of implementation" again, it will be too soon.) They're written in ways that frequently turn even simple concepts into tortuously twisted and fractured grammar and semantics. (I suspect that the last two items are the biggest problem. I wouldn't know, though, since I'm too much a dullard to comprehend them.) It's been asked why Haskell never really caught on in industry. I suspect, in my own humble, unintelligent way, that my experience in figuring out one stupid little keyword -- a keyword that is increasingly ubiquitous in the libraries being written these days -- are also part of the answer to that question. It's hard for a language to catch on when even its individual keywords cause years-long quests to comprehend. Years-long quests which end in failure. So... On to the actual question. Can anybody completely explain the foreach keyword in clear, plain English (or, if it exists somewhere, point to such a clear explanation which I've missed) that doesn't assume I'm a mathematician steeped in the jargon?

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• Spring MVC working with Web Designers

  - by jboyd

  When working with web-designers in a Spring-MVC and JSP environment, are there any tools or helpful patterns to reduce the pain of going back and forth from HTML to JSP and back? Project requirements dictate that views will change often, and it can be difficult to make changes efficiently because of the amount of Java code that leaks into the view layer. Ideally I'd like to remove almost all Java code from the view, but it does not seem like this works with the Spring/JSP philosophy where often the way to remove Java code is to replace that code with tag libraries, which will still have a similar problem. To provide a little clarity to my question I'm going to include some existing code (inherited by me) to show the kinds of problems I'm likely to face when change the look of our views: <%-- Begin looping through results --%> <% List memberList = memberSearchResults.getResults(); for(int i = start - 1; i < memberList.size() && i < end; i++) { Profile profile = (Profile)memberList.get(i); long profileId = profile.getProfileId(); String nickname = profile.getNickname(); String description = profile.getDescription(); Image image = profile.getAvatarImage(); String avatarImageSrc = null; int avatarImageWidthNum = 0; int avatarImageHeightNum = 0; if(null != image) { avatarImageSrc = image.getSrc(); avatarImageWidthNum = image.getWidth(); avatarImageHeightNum = image.getHeight(); } String bgColor = i % 2 == 1 ? "background-color:#FFF" : ""; %> <div style="float:left;clear:both;padding:5px 0 5px 5px;cursor:pointer;<%= bgColor %>" onclick='window.location="profile.sp?profileId=<%= profileId %>"'> <div style="float:right;clear:right;padding-left:10px;width:515px;font-size:10px;color:#7e7e7e"> <h6><%= nickname %></h6> <%= description %> </div> <img style="float:left;clear:left;" alt="Avatar Image" src="<%= null != avatarImageSrc && avatarImageSrc.trim().length() > 0 ? avatarImageSrc : "images/defaultUserImage.png" %>" <%= avatarImageWidthNum < avatarImageHeightNum ? "height='59'" : "width='92'" %> /> </div> <% } // End loop %> Now, ignoring some of the code smells there, it's obvious that if someone wants to change the look of that DIV it would be neccesary to re-place all the Java/JSP code into the new HTML given (the designers don't work in JSP files, they have their own HTML versions of the website). Which is tedious, and prone to errors.

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• How to design a C / C++ library to be usable in many client languages?

  - by Brian Schimmel

  I'm planning to code a library that should be usable by a large number of people in on a wide spectrum of platforms. What do I have to consider to design it right? To make this questions more specific, there are four "subquestions" at the end. Choice of language Considering all the known requirements and details, I concluded that a library written in C or C++ was the way to go. I think the primary usage of my library will be in programs written in C, C++ and Java SE, but I can also think of reasons to use it from Java ME, PHP, .NET, Objective C, Python, Ruby, bash scrips, etc... Maybe I cannot target all of them, but if it's possible, I'll do it. Requirements It would be to much to describe the full purpose of my library here, but there are some aspects that might be important to this question: The library itself will start out small, but definitely will grow to enormous complexity, so it is not an option to maintain several versions in parallel. Most of the complexity will be hidden inside the library, though The library will construct an object graph that is used heavily inside. Some clients of the library will only be interested in specific attributes of specific objects, while other clients must traverse the object graph in some way Clients may change the objects, and the library must be notified thereof The library may change the objects, and the client must be notified thereof, if it already has a handle to that object The library must be multi-threaded, because it will maintain network connections to several other hosts While some requests to the library may be handled synchronously, many of them will take too long and must be processed in the background, and notify the client on success (or failure) Of course, answers are welcome no matter if they address my specific requirements, or if they answer the question in a general way that matters to a wider audience! My assumptions, so far So here are some of my assumptions and conclusions, which I gathered in the past months: Internally I can use whatever I want, e.g. C++ with operator overloading, multiple inheritance, template meta programming... as long as there is a portable compiler which handles it (think of gcc / g++) But my interface has to be a clean C interface that does not involve name mangling Also, I think my interface should only consist of functions, with basic/primitive data types (and maybe pointers) passed as parameters and return values If I use pointers, I think I should only use them to pass them back to the library, not to operate directly on the referenced memory For usage in a C++ application, I might also offer an object oriented interface (Which is also prone to name mangling, so the App must either use the same compiler, or include the library in source form) Is this also true for usage in C# ? For usage in Java SE / Java EE, the Java native interface (JNI) applies. I have some basic knowledge about it, but I should definitely double check it. Not all client languages handle multithreading well, so there should be a single thread talking to the client For usage on Java ME, there is no such thing as JNI, but I might go with Nested VM For usage in Bash scripts, there must be an executable with a command line interface For the other client languages, I have no idea For most client languages, it would be nice to have kind of an adapter interface written in that language. I think there are tools to automatically generate this for Java and some others For object oriented languages, it might be possible to create an object oriented adapter which hides the fact that the interface to the library is function based - but I don't know if its worth the effort Possible subquestions is this possible with manageable effort, or is it just too much portability? are there any good books / websites about this kind of design criteria? are any of my assumptions wrong? which open source libraries are worth studying to learn from their design / interface / souce? meta: This question is rather long, do you see any way to split it into several smaller ones? (If you reply to this, do it as a comment, not as an answer)

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• ERROR: Failed to build gem native extension (mysql2 on rails 3.2.3)

  - by Ryan Arneson

  I'm trying to install the mysql2 gem with Rails 3.2.3 and it's failing: ? bundle install Fetching gem metadata from https://rubygems.org/......... Using rake (0.9.2.2) Using i18n (0.6.0) Using multi_json (1.2.0) Using activesupport (3.2.3) Using builder (3.0.0) Using activemodel (3.2.3) Using erubis (2.7.0) Using journey (1.0.3) Using rack (1.4.1) Using rack-cache (1.2) Using rack-test (0.6.1) Using hike (1.2.1) Using tilt (1.3.3) Using sprockets (2.1.2) Using actionpack (3.2.3) Using mime-types (1.18) Using polyglot (0.3.3) Using treetop (1.4.10) Using mail (2.4.4) Using actionmailer (3.2.3) Using arel (3.0.2) Using tzinfo (0.3.32) Using activerecord (3.2.3) Using activeresource (3.2.3) Using bundler (1.1.3) Using coffee-script-source (1.2.0) Using execjs (1.3.0) Using coffee-script (2.2.0) Using rack-ssl (1.3.2) Using json (1.6.6) Using rdoc (3.12) Using thor (0.14.6) Using railties (3.2.3) Using coffee-rails (3.2.2) Using jquery-rails (2.0.2) Installing mysql2 (0.3.11) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/rarneson/.rvm/rubies/ruby-1.9.3-p125/bin/ruby extconf.rb checking for rb_thread_blocking_region()... yes checking for rb_wait_for_single_fd()... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lm... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lz... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lsocket... no checking for mysql_query() in -lmysqlclient... no checking for main() in -lnsl... no checking for mysql_query() in -lmysqlclient... no checking for main() in -lmygcc... no checking for mysql_query() in -lmysqlclient... no *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/Users/rarneson/.rvm/rubies/ruby-1.9.3-p125/bin/ruby --with-mysql-config --without-mysql-config --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include=${mysql-dir}/include --with-mysql-lib --without-mysql-lib=${mysql-dir}/lib --with-mysqlclientlib --without-mysqlclientlib --with-mlib --without-mlib --with-mysqlclientlib --without-mysqlclientlib --with-zlib --without-zlib --with-mysqlclientlib --without-mysqlclientlib --with-socketlib --without-socketlib --with-mysqlclientlib --without-mysqlclientlib --with-nsllib --without-nsllib --with-mysqlclientlib --without-mysqlclientlib --with-mygcclib --without-mygcclib --with-mysqlclientlib --without-mysqlclientlib Gem files will remain installed in /Users/rarneson/.rvm/gems/ruby-1.9.3-p125/gems/mysql2-0.3.11 for inspection. Results logged to /Users/rarneson/.rvm/gems/ruby-1.9.3-p125/gems/mysql2-0.3.11/ext/mysql2/gem_make.out An error occured while installing mysql2 (0.3.11), and Bundler cannot continue. Make sure that `gem install mysql2 -v '0.3.11'` succeeds before bundling. I'm running bundle install and this is in my Gemfile: gem 'mysql2', '~> 0.3.11' I've currently got MySQL running through MAMP. I'm not sure if this is a bad idea and I should run a vanilla MySQl but it seems my current problem is just getting the gem installed. I've seen quite a few of these problems here on stackoverflow but all seem a bit different or have really complicated solutions. Is there something I'm missing? Something simple? Something stupid? I can provide additional info from the out file if necessary. I've read that some people use SQLite for dev and test then MySQL in prod but that sounds like a pretty horrible idea.

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