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194 discussions

rest api post submissions
by Jesús Alberto Domínguez Alfonso 09 Aug '16

09 Aug '16

Hello, Please help. I want to submmit a exercise,i have used a program make for me but i don´t know if i am doing something bad, i put four parameters. data.put("code", array); data.put("langid",languageId); data.put("contest", contest_id); data.put("shortname",nombreProblema); This is the code complete from my method: private void testConsumerPOST(String array[], String nombreProblema, String languageId, String contest_id) { String servletURL = "http://192.168.1.146/domjudge/api/submissions"; URL servlet = null; try { servlet = new URL(servletURL); System.out.println("Sending request to " + servletURL); HttpURLConnection servletConnection = (HttpURLConnection) servlet.openConnection(); servletConnection.setRequestMethod("POST"); servletConnection.setDoOutput(true); servletConnection.setDoInput(true); //send the keys to the server OutputStreamWriter out = new OutputStreamWriter(servletConnection.getOutputStream()); ObjectMapper mapper = new ObjectMapper(); //Jackson Object mapper Map<String, Object> data = new HashMap<String, Object>(); data.put("code", array); data.put("langid",languageId); data.put("contest", contest_id); data.put("shortname",nombreProblema); // data.put("teamid",teamId); out.write(mapper.writeValueAsString(data)); //objOut.flush(); //objOut.close(); } catch (MalformedURLException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (ProtocolException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } } king regards.

2 1

THANKS FOR THE DOMJUDGE REST API!!!
by JAVIER BARRIUSO CAMARERO 08 Aug '16

08 Aug '16

Hi there, Your API REST is real good, and I have almost finished the implementation of a single Java client to consume most of your methods, but I have found only one problem with the submission files POST method. Due to technical restrictions Im not allowed to use CURL so I have to use HttpURLConnection and Im receiving constantly a response with 400 Error. After reading the PHP definition I have wrote this quite common Java method: .... private void testConsumerPOST(String array, String nombreProblema, String languageId, String contest_id) { String servletURL = "http://localhost/domjudge/api/submissions"; URL servlet = null; try { TrustManager[] trustAllCerts = new TrustManager[]{ new X509TrustManager() { public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(X509Certificate[] certs, String authType) { } public void checkServerTrusted(X509Certificate[] certs, String authType) { } } }; SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, new java.security.SecureRandom()); HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory()); // Create all-trusting host name verifier HostnameVerifier allHostsValid = new HostnameVerifier() { public boolean verify(String hostname, SSLSession session) { return true; } }; // Install the all-trusting host verifier HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid); servlet = new URL(servletURL); HttpURLConnection servletConnection = (HttpURLConnection) servlet.openConnection(); // AUTENTICACION String userpass = "admin:admin"; String basicAuth = "Basic " + new String(new com.sun.org.apache.xerces.internal.impl.dv.util.Base64().encode(userpass.getBytes())); servletConnection.setRequestProperty("Authorization", basicAuth); servletConnection.setRequestMethod("POST"); servletConnection.setDoOutput(true); servletConnection.setDoInput(true); OutputStreamWriter out = new OutputStreamWriter(servletConnection.getOutputStream()); ObjectMapper mapper = new ObjectMapper(); Map<String, Object> data = new HashMap<String, Object>(); data.put("code[]", array); data.put("shortname", nombreProblema); data.put("langid", languageId); data.put("contest", contest_id); out.write(mapper.writeValueAsString(data)); out.flush(); if (servletConnection.getResponseCode() != HttpURLConnection.HTTP_CREATED) { throw new RuntimeException("Failed : HTTP error code : " + servletConnection.getResponseCode()); } BufferedReader br = new BufferedReader(new InputStreamReader( (servletConnection.getInputStream()))); String output; System.out.println("Output from Server .... \n"); while ((output = br.readLine()) != null) { System.out.println(output); } out.close(); } catch (MalformedURLException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (ProtocolException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (KeyManagementException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (NoSuchAlgorithmException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } } Also another one with binary data post almost identical: private void testConsumerPOST_Binary(String array, String nombreProblema, String languageId, String contest_id) { String servletURL = "http://192.168.1.146/domjudge/api/submissions"; try { TrustManager[] trustAllCerts = new TrustManager[]{ new X509TrustManager() { public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(X509Certificate[] certs, String authType) { } public void checkServerTrusted(X509Certificate[] certs, String authType) { } } }; SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, new java.security.SecureRandom()); HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory()); // Create all-trusting host name verifier HostnameVerifier allHostsValid = new HostnameVerifier() { public boolean verify(String hostname, SSLSession session) { return true; } }; // Install the all-trusting host verifier HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid); HttpURLConnection httpcon = (HttpURLConnection) ((new URL(servletURL).openConnection())); httpcon.setDoOutput(true); httpcon.setRequestProperty("Content-Type", "application/json"); httpcon.setRequestProperty("Accept", "application/json"); httpcon.setRequestMethod("POST"); String userpass = "admin:admin"; String basicAuth = "Basic " + new String(new com.sun.org.apache.xerces.internal.impl.dv.util.Base64().encode(userpass.getBytes())); httpcon.setRequestProperty("Authorization", basicAuth); httpcon.connect(); ObjectMapper mapper = new ObjectMapper(); //Jackson Object mapper Map<String, Object> data = new HashMap<String, Object>(); data.put("code[]", array); data.put("shortname", nombreProblema); data.put("langid", languageId); data.put("contest", contest_id); byte[] outputBytes = mapper.writeValueAsString(data).getBytes("UTF-8"); OutputStream os = httpcon.getOutputStream(); os.write(outputBytes); os.flush(); if (httpcon.getResponseCode() != HttpURLConnection.HTTP_CREATED) { throw new RuntimeException("Failed : HTTP error code : " + httpcon.getResponseCode()); } //Get the new submission_id BufferedReader br = new BufferedReader(new InputStreamReader( (httpcon.getInputStream()))); String output; System.out.println("Output from Server .... \n"); while ((output = br.readLine()) != null) { System.out.println(output); } os.close(); } catch (MalformedURLException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (ProtocolException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (KeyManagementException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (NoSuchAlgorithmException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } } None of them are able to submit the files, just to be clear about the data format Im sending: code[] ---> "[{\"filename\":\"main.cpp\",\"content\":\"I2luY2x1ZGUgPGlvc3RyZWFtPg0KI2luY2x1ZGUgPHN0ZGlvLmg+DQoNCnVzaW5nIG5hbWVzcGFjZSBzdGQ7DQoNCmludCBtYWluKCkNCnsNCiAgICBTdHJpbmcgbm9tYnJlPSJwZWRybyI7DQoJaW50IHZhbD0xLHZhMj0xMCx0b3RhbD0wOw0KCXRvdGFsPXZhbCt2YWwyOw0KCQ0KCQ0KICAgIHJldHVybiAwOw0KfQ0K\"}]" shortname ---> The problem ddbb shortname value previously recovered with the "problems GET method of the API REST" langid---> The language id value previously recovered with the "problems GET method of the API REST" (Ex: cpp) contest ---> We have tried both contestId and contest_short_name. Im not sure wich one should be sent. My last question is: Is the teamId necessary for the post? We would thank any of your comments to finish this amazing program!!! Thanks in advance [😊] Javier.

1 0

DOMjudge-live images
by Jesús Alberto Domínguez Alfonso 08 Aug '16

08 Aug '16

Hello, I would to know please if Live image 5.1.1 domjudge has it installed the submmit clien or if need libcurl, libmagic and libjsoncpp. I want to make a a programme that use the rest api submission post to send a submissions, but i cannot. king regards.

2 1

Judgenode Down issue
by Aneesh R 06 Aug '16

06 Aug '16

Dear Team We have hosted Domjudge 5.0.1 in our university, on 27-07-16 we have conducted practice test for our students , we are facing some issue in judgenode each 10-15 minutes it will goes down , i here attached the screen shots of apache error log file,anyone can help me to resolve the judgehost node down issue . We have separate technical wing is here ,i just enquire with them they told it occur due to the problem set time limit . For example one problem time limit have 1 minut after that the judgenode will goes down I think appache error log is not much for identify this problem, if anything more please specify i will update here Thanks & regards Aneesh

4 7

Error during dj-setup-database
by Malcolm Corney 04 Aug '16

04 Aug '16

During domjudge 5.1.2 setup on Ubuntu 16.04 with MySQL 5.7.13, PHP 7, Apache 2.4.18 I am getting the following error after executing: sudo /opt/domjudge/domserver/bin/dj-setup-database -u root -r install Database credentials read from '/opt/domjudge/domserver/etc/dbpasswords.secret'. Enter password: DOMjudge database and user(s) created. Enter password: ERROR 1292 (22007) at line 744: Truncated incorrect datetime value: '2016-01-01 08:00:00 UTC' There is no line 744 in dj-setup-database. Searching for ERROR 1292 (22007) does not bring me any closer to a solution. I continued with the installation and everything seems to work OK. There are no example contests, users, teams, problems when I do so. Running: sudo /opt/domjudge/domserver/bin/dj-setup-database -u root -r status indicates that the database check was successful. Any hints here? Thanks, Malcolm Corney

2 1

Fedora 24 and Submit Client
by Marc Furon 02 Aug '16

02 Aug '16

I am running Fedora 24. I am trying to install DOMjudge 5.1.2 to start preparing for the next regional contest. When I try to run "configure", it gives an error after checking for jsoncpp/json/json.h. This is because it does not exist. json/json.h does exist. When I look at the jsoncpp-devel package, it does not have any files that are in a directory named jsoncpp. The documentation states that json/json.h should be used. I will skip the submit client for now, and we may decide not to use it at all (we have not used it in the past). However, it would be nice to get it to work. I do not have a Debian system handy to see if the include files are different there. Does anyone have suggestions for a resolution to this problem? Regards, Marc

2 3

rest api and bbdd
by Jesús Alberto Domínguez Alfonso 30 Jul '16

30 Jul '16

Hello, first, Thanks for your help. First i would to know if there is a rest api for example /submission_file that return values that result in this case compiler error, and the code of compilation (warnings and errros from the code that we can see in the picture) If i can´t i would to know where i can get this information in bbdd. [image: Imágenes integradas 1] king regards.

2 2

OCaml support
by Parth Mittal 19 Jul '16

19 Jul '16

Hi I tried to add OCaml to the languages, so the compile script I used is: #!/bin/sh # C++ compile wrapper-script for 'compile.sh'. # See that script for syntax and more info. DEST="$1" ; shift MEMLIMIT="$1" ; shift MAINSOURCE="$1" ocamlc -o "$DEST" "$@" exit $? And for run, I left it as default script. But when a submission is judged, it exits with a RunTime Error The Runguard output follows: /home/foobar/domjudge5.1/judgehost/bin/runguard: cannot start `/testcase001/execdir/program': No such file or directory Try `/home/foobar/domjudge5.1/judgehost/bin/runguard --help' for more information. I tried to look for the file, and it does exist, and works like an executable, so I am not sure what is going wrong. For completeness, I also tried to echo the variables being passed to run, and the output in my temporary log file shows sudo -n /home/foobar/domjudge5.1/judgehost/bin/runguard -P 3 -r /home/foobar/domjudge5.1/judgehost/judgings/foobar-3/endpoint-default/c131-s68948-j78769/testcase001/.. --nproc=50 --no-core --streamsize=40000 --user=domjudge-run-3 --walltime=1:2 --cputime=1:2 --memsize=4096000 --filesize=40000 --stderr=program.err --outmeta=program.meta -- /testcase001/execdir/program Please advise on how to proceed. Thank you Parth Mittal

2 1

DOMjudge with ICPC Tools
by Myungwoo Chun 15 Jul '16

15 Jul '16

Hi, everyone. I'm trying to use DOMjudge with ICPC Tools <https://icpc.baylor.edu/icpctools/>. But I have no idea to configure CDS(Contest Data Server) for DOMjudge. Especially, <ccs user="" password="" eventFeed="" startTime="" submissionFiles=""/> this part. Is there anybody who has used ICPC Tools? Thank you, Myungwoo Chun

2 1

desktop domjudge help
by Jesús Alberto Domínguez Alfonso 14 Jul '16

14 Jul '16

Hello, I want to make a desktop app, this desktop is a web interface simply, in this interface i want to upload a file .c or .c++ and send to domjudge via service web or whatever, i want that domjudge execute and return to me the datas to show all information in mi desktop app. Is it possible?, is there a service web in domjudge? king regards.

3 3

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