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• Determine which user initiated call in Asterisk

  - by adaptive

  I had the following code in my extensions.conf file: [local] exten => _NXXNXXXXXX,1,Set(CALLERID(name)=${OUTGOING_NAME}) exten => _NXXNXXXXXX,n,Set(CALLERID(num)=${OUTGOING_NUMBER}) Now I want to change this code to set the CallerID and number based on the user/extension that is making the call. In fact I have four(4) users/extensions in my sip.conf and only one of them (the one I use for business) is supposed to send a different caller id/number. Everything is in the same context (for simplicity) since all lines need to be able to pick up an incoming call. The only difference is when line1 needs to make a call, it has to send a different caller id/number and use a different provider. This is what I have so far: [local] exten => _NXXNXXXXXX,1,Set(line=${SIP_HEADER(From)}) exten => _NXXNXXXXXX,n,Verbose(line variable is <${line}>) exten => _NXXNXXXXXX,n,Set(CALLERID(name)=${IF($[ ${line} = line1 ]?${COMPANY_NAME}:${FAMILY_NAME})}) exten => _NXXNXXXXXX,n,Set(CALLERID(num)=${IF($[ ${line} = line1 ]?${COMPANY_NUMBER}:${FAMILY_NUMBER})}) exten => _NXXNXXXXXX,n,Dial(${IF($[ ${line} = line1]?SIP/${EXTEN}@${COMPANY_PROVIDER}:SIP/${EXTEN}@${FAMILY_PROVIDER})}) I really don't know if this is correct and I'm afraid to commit these changes to my extensions.conf before validating. Any help will be greatly appreciated.

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• Exposing model object using bindings in custom NSCell of NSTableView

  - by Hooligancat

  I am struggling trying to perform what I would think would be a relatively common task. I have an NSTableView that is bound to it's array via an NSArrayController. The array controller has it's content set to an NSMutableArray that contains one or more NSObject instances of a model class. What I don't know how to do is expose the model inside the NSCell subclass in a way that is bindings friendly. For the purpose of illustration, we'll say that the object model is a person consisting of a first name, last name, age and gender. Thus the model would appear something like this: @interface PersonModel : NSObject { NSString * firstName; NSString * lastName; NSString * gender; int * age; } Obviously the appropriate setters, getters init etc for the class. In my controller class I define an NSTableView, NSMutableArray and an NSArrayController: @interface ControllerClass : NSObject { IBOutlet NSTableView * myTableView; NSMutableArray * myPersonArray; IBOutlet NSArrayController * myPersonArrayController; } Using Interface Builder I can easily bind the model to the appropriate columns: myPersonArray --> myPersonArrayController --> table column binding This works fine. So I remove the extra columns, leaving one column hidden that is bound to the NSArrayController (this creates and keeps the association between each row and the NSArrayController) so that I am down to one visible column in my NSTableView and one hidden column. I create an NSCell subclass and put the appropriate drawing method to create the cell. In my awakeFromNib I establish the custom NSCell subclass: PersonModel * aCustomCell = [[[PersonModel alloc] init] autorelease]; [[myTableView tableColumnWithIdentifier:@"customCellColumn"] setDataCell:aCustomCell]; This, too, works fine from a drawing perspective. I get my custom cell showing up in the column and it repeats for every managed object in my array controller. If I add an object or remove an object from the array controller the table updates accordingly. However... I was under the impression that my PersonModel object would be available from within my NSCell subclass. But I don't know how to get to it. I don't want to set each NSCell using setters and getters because then I'm breaking the whole model concept by storing data in the NSCell instead of referencing it from the array controller. And yes I do need to have a custom NSCell, so having multiple columns is not an option. Where to from here? In addition to the Google and StackOverflow search, I've done the obligatory walk through on Apple's docs and don't seem to have found the answer. I have found a lot of references that beat around the bush but nothing involving an NSArrayController. The controller makes life very easy when binding to other elements of the model entity (such as a master/detail scenario). I have also found a lot of references (although no answers) when using Core Data, but Im not using Core Data. As per the norm, I'm very grateful for any assistance that can be offered!

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• Model Object called in NSOutlineView DataSource Method Crashing App

  - by Alec Sloman

  I have a bewildering problem, hoping someone can assist: I have a model object, called Road. Here's the interface. @@@ @interface RoadModel : NSObject { NSString *_id; NSString *roadmapID; NSString *routeID; NSString *title; NSString *description; NSNumber *collapsed; NSNumber *isRoute; NSString *staff; NSNumber *start; NSArray *staffList; NSMutableArray *updates; NSMutableArray *uploads; NSMutableArray *subRoads; } @property (nonatomic, copy) NSString *_id; @property (nonatomic, copy) NSString *roadmapID; @property (nonatomic, copy) NSString *routeID; @property (nonatomic, copy) NSString *title; @property (nonatomic, copy) NSString *description; @property (nonatomic, copy) NSNumber *collapsed; @property (nonatomic, copy) NSNumber *isRoute; @property (nonatomic, copy) NSString *staff; @property (nonatomic, copy) NSNumber *start; @property (nonatomic, copy) NSArray *staffList; @property (nonatomic, copy) NSMutableArray *updates; @property (nonatomic, copy) NSMutableArray *uploads; @property (nonatomic, copy) NSMutableArray *subRoads; - (id)initWithJSONObject:(NSDictionary *)JSONObject; @end This part is fine. To give you some background, I'm translating a bunch of JSON into a proper model object so it's easier to work with. Now, I'm trying to display this in an NSOutlineView. This is where the problem is. In particular, I have created the table and a datasource. - (id)initWithRoads:(NSArray *)roads { if (self = [super init]) root = [[NSMutableArray alloc] initWithArray:roads]; return self; } - (NSInteger)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item { if (item == nil) return root.count; return 0; } - (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item { return NO; } - (id)outlineView:(NSOutlineView *)outlineView child:(NSInteger)index ofItem:(id)item { if (item == nil) item = root; if (item == root) return [root objectAtIndex:index]; return nil; } - (id)outlineView:(NSOutlineView *)outlineView objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item { return [item title]; } In the final datasource method, it attempts to return the "title" string property of the model object, but for some reason crashes each time. I have checked that the method is taking in the correct object (I checked [item class] description], and it is the right object), but for some reason if I call any of the objects accessors the app immediately crashes. This is totally puzzling because in the init method, I can iterate through root (an array of RoadModel objects), and print any of its properties without issue. It is only when I'm trying to access the properties in any of the datasource methods that this occurs. I wonder if there is something memory-wise that is going on behind the scenes and I am not providing for it. If you can shed some light on to this situation, it would be greatly appreciated! Thanks in advance!

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• User Getting Logged Out After Making First Comment

  - by John

  Hello, I am using a login system that works well. I am also using a comment system. The comment function does not show up unless the user is logged in (as shown in commentformonoff.php below). When a user makes a comment, the info is passed from the function "show_commentbox" to the file comments2a.php. Then, the info is passed to the file comments2.php. When the site is first pulled up on a browser, after logging in and making a comment, the user is logged out. After logging in a second time during the same browser session, the user is no longer logged out after making a comment. How can I keep the user logged in after making the first comment? Thanks in advance, John Commentformonoff.php: <?php if (!isLoggedIn()) { if (isset($_POST['cmdlogin'])) { if (checkLogin($_POST['username'], $_POST['password'])) { show_commentbox($submissionid, $submission, $url, $submittor, $submissiondate, $countcomments, $dispurl); } else { echo "<div class='logintocomment'>Login to comment</div>"; } } else { echo "<div class='logintocomment'>Login to comment</div>"; } } else { show_commentbox($submissionid, $submission, $url, $submittor, $submissiondate, $countcomments, $dispurl); } ?> Function "show_commentbox": function show_commentbox($submissionid, $submission, $url, $submittor, $submissiondate, $countcomments, $dispurl) { echo '<form action="http://www...com/.../comments/comments2a.php" method="post"> <input type="hidden" value="'.$_SESSION['loginid'].'" name="uid"> <input type="hidden" value="'.$_SESSION['username'].'" name="u"> <input type="hidden" value="'.$submissionid.'" name="submissionid"> <input type="hidden" value="'.stripslashes($submission).'" name="submission"> <input type="hidden" value="'.$url.'" name="url"> <input type="hidden" value="'.$submittor.'" name="submittor"> <input type="hidden" value="'.$submissiondate.'" name="submissiondate"> <input type="hidden" value="'.$countcomments.'" name="countcomments"> <input type="hidden" value="'.$dispurl.'" name="dispurl"> <label class="addacomment" for="title">Add a comment:</label> <textarea class="checkMax" name="comment" type="comment" id="comment" maxlength="1000"></textarea> <div class="commentsubbutton"><input name="submit" type="submit" value="Submit"></div> </form> '; } Included in comments2a.php: $uid = mysql_real_escape_string($_POST['uid']); $u = mysql_real_escape_string($_POST['u']); $query = sprintf("INSERT INTO comment VALUES (NULL, %d, %d, '%s', NULL)", $uid, $subid, $comment); mysql_query($query) or die(mysql_error()); $lastcommentid = mysql_insert_id(); header("Location: comments2.php?submission=".$submission."&submissionid=".$submissionid."&url=".$url."&submissiondate=".$submissiondate."&comment=".$comment."&subid=".$subid."&uid=".$uid."&u=".$u."&submittor=".$submittor."&countcomments=".$countcomments."&dispurl=".$dispurl."#comment-$lastcommentid"); exit(); Included in comments2.php: if($_SERVER['REQUEST_METHOD'] == "POST"){header('Location: http://www...com/.../comments/comments2.php?submission='.$submission.'&submissionid='.$submissionid.'&url='.$url.'&submissiondate='.$submissiondate.'&submittor='.$submittor.'&countcomments='.$countcomments.'&dispurl='.$dispurl.'');} $uid = mysql_real_escape_string($_GET['uid']); $u = mysql_real_escape_string($_GET['u']);

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• xts error - order.by requires an appropriate time-based object

  - by Samo

  I can not resolve why error in simple creation of xts object xts(rep(0, NROW(TICK.NYSE)), order.by = index(TICK.NYSE)) Error in xts(rep(0, NROW(TICK.NYSE)), order.by = index(TICK.NYSE)) : order.by requires an appropriate time-based object appeared while this was working perfectly 14 days ago when I last used the same code (since then the only difference is that TICK.NYSE grow in length since data was added since then). More details below: > Sys.getenv("TZ") [1] "EST" > tail(xts(rep(0, NROW(TICK.NYSE)), order.by = index(TICK.NYSE))) Error in xts(rep(0, NROW(TICK.NYSE)), order.by = index(TICK.NYSE)) : order.by requires an appropriate time-based object > class(index(TICK.NYSE["T09:30/T09:31"])) [1] "POSIXct" > tail(xts(rep(0, NROW(tail(TICK.NYSE))), order.by = index(tail(TICK.NYSE)))) Error in xts(rep(0, NROW(tail(TICK.NYSE))), order.by = index(tail(TICK.NYSE))) : order.by requires an appropriate time-based object > tail(TICK.NYSE) TICK-NYSE.Open TICK-NYSE.High TICK-NYSE.Low TICK-NYSE.Close 2012-03-15 14:54:00 -278 -89 -299 -89 2012-03-15 14:55:00 -89 427 -89 201 2012-03-15 14:56:00 201 318 30 234 2012-03-15 14:57:00 234 242 -222 -64 2012-03-15 14:58:00 -64 346 -82 346 2012-03-15 14:59:00 346 525 36 525 TICK-NYSE.Volume TICK-NYSE.WAP TICK-NYSE.hasGaps 2012-03-15 14:54:00 0 0 0 2012-03-15 14:55:00 0 0 0 2012-03-15 14:56:00 0 0 0 2012-03-15 14:57:00 0 0 0 2012-03-15 14:58:00 0 0 0 2012-03-15 14:59:00 0 0 0 TICK-NYSE.Count 2012-03-15 14:54:00 31 2012-03-15 14:55:00 31 2012-03-15 14:56:00 31 2012-03-15 14:57:00 31 2012-03-15 14:58:00 29 2012-03-15 14:59:00 30 > str(TICK.NYSE) An ‘xts’ object from 2011-01-18 09:30:00 to 2012-03-15 14:59:00 containing: Data: num [1:114090, 1:8] -5 -144 24 -148 -184 -77 20 121 111 -60 ... - attr(*, "dimnames")=List of 2 ..$ : NULL ..$ : chr [1:8] "TICK-NYSE.Open" "TICK-NYSE.High" "TICK-NYSE.Low" "TICK-NYSE.Close" ... Indexed by objects of class: [POSIXct,POSIXt] TZ: xts Attributes: List of 4 $ from : chr "20110119 23:59:59" $ to : chr "20110124 23:59:59" $ src : chr "IB" $ updated: POSIXct[1:1], format: "2012-01-19 02:34:52" > str(index(TICK.NYSE)) Class 'POSIXct' atomic [1:114090] 1.3e+09 1.3e+09 1.3e+09 1.3e+09 1.3e+09 ... ..- attr(*, "tzone")= chr "" ..- attr(*, "tclass")= chr [1:2] "POSIXct" "POSIXt" > Sys.getenv("TZ") [1] "EST" > tail(index(TICK.NYSE)) [1] "2012-03-15 14:54:00 EST" "2012-03-15 14:55:00 EST" [3] "2012-03-15 14:56:00 EST" "2012-03-15 14:57:00 EST" [5] "2012-03-15 14:58:00 EST" "2012-03-15 14:59:00 EST" > head(index(TICK.NYSE)) [1] "2011-01-18 09:30:00 EST" "2011-01-18 09:31:00 EST" [3] "2011-01-18 09:32:00 EST" "2011-01-18 09:33:00 EST" [5] "2011-01-18 09:34:00 EST" "2011-01-18 09:35:00 EST" > Sys.info() sysname "Linux" release "3.0.0-16-generic" version "#28-Ubuntu SMP Fri Jan 27 17:44:39 UTC 2012" > sessionInfo() R version 2.14.1 (2011-12-22) Platform: x86_64-pc-linux-gnu (64-bit) locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=en_US.UTF-8 [9] LC_ADDRESS=en_US.UTF-8 LC_TELEPHONE=en_US.UTF-8 [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=en_US.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] lattice_0.20-0 multicore_0.1-7 [3] doSNOW_1.0.5 snow_0.3-8 [5] doRedis_1.0.4 rredis_1.6.3 [7] foreach_1.3.2 codetools_0.2-8 [9] iterators_1.0.5 PerformanceAnalytics_1.0.3.3 [11] quantstrat_0.6.1 blotter_0.8.4 [13] twsInstrument_1.3-3 FinancialInstrument_0.10.6 [15] IBrokers_0.9-6 quantmod_0.3-18 [17] TTR_0.21-0 xts_0.8-4 [19] Defaults_1.1-1 strucchange_1.4-6 [21] sandwich_2.2-8 zoo_1.7-7 [23] rj_1.0.2-5 loaded via a namespace (and not attached): [1] grid_2.14.1 tools_2.14.1 > dput(tail(TICK.NYSE)) structure(c(-385, -213, -42, -334, -233, -111, -121, 20, -14, -125, -73, 265, -583, -269, -426, -520, -443, -440, -213, -42, -334, -233, -111, 119, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 31, 30, 30, 31, 31), class = c("xts", "zoo" ), .indexCLASS = c("POSIXct", "POSIXt"), .indexTZ = "", from = "20110119 23:59:59", to = "20110124 23:59:59", src = "IB", updated = structure(1326958492.96405, class = c("POSIXct", "POSIXt")), index = structure(c(1331927640, 1331927700, 1331927760, 1331927820, 1331927880, 1331927940), tzone = "", tclass = c("POSIXct", "POSIXt")), .Dim = c(6L, 8L), .Dimnames = list(NULL, c("TICK-NYSE.Open", "TICK-NYSE.High", "TICK-NYSE.Low", "TICK-NYSE.Close", "TICK-NYSE.Volume", "TICK-NYSE.WAP", "TICK-NYSE.hasGaps", "TICK-NYSE.Count")))

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• Apache server still running but user can not connect website, after "sudo apachectl restart" user can connect website, what'r wrong? [on hold]

  - by Tinyfool

  My website is http://ourcoders.com/, recently I found sometime user report can not connect to my website, but I ssh to server, I found Apache still running, like this: root@AY1401261057077842eaZ:~# ps aux|grep apache root 873 0.0 1.3 290496 13528 ? Ss Aug18 0:28 /usr/sbin/apache2 -k start www-data 3490 0.0 1.8 299004 18764 ? S Aug21 0:01 /usr/sbin/apache2 -k start www-data 3612 0.0 1.5 296008 15540 ? S Aug21 0:03 /usr/sbin/apache2 -k start www-data 3860 0.0 1.5 296636 16268 ? S Aug21 0:00 /usr/sbin/apache2 -k start www-data 3913 0.0 1.2 295468 13084 ? S Aug21 0:00 /usr/sbin/apache2 -k start www-data 3931 0.0 1.7 298488 18228 ? S 16:02 0:01 /usr/sbin/apache2 -k start www-data 3938 0.0 1.9 299128 19724 ? S 16:02 0:02 /usr/sbin/apache2 -k start www-data 4465 0.0 1.6 296688 16404 ? S Aug21 0:00 /usr/sbin/apache2 -k start www-data 5075 0.0 1.2 295468 13044 ? S 16:16 0:00 /usr/sbin/apache2 -k start www-data 5153 0.0 1.5 295880 15612 ? S 16:17 0:00 /usr/sbin/apache2 -k start www-data 5770 0.0 1.5 296608 16016 ? S 16:30 0:00 /usr/sbin/apache2 -k start www-data 5773 0.0 1.6 296948 16640 ? S 16:30 0:00 /usr/sbin/apache2 -k start www-data 5816 0.0 1.6 297216 16976 ? S 16:31 0:01 /usr/sbin/apache2 -k start www-data 5918 0.0 1.7 298228 17820 ? S 16:33 0:01 /usr/sbin/apache2 -k start www-data 6023 0.0 1.9 299864 19840 ? S 16:35 0:13 /usr/sbin/apache2 -k start www-data 6073 0.0 1.7 298480 18120 ? S 16:36 0:02 /usr/sbin/apache2 -k start www-data 6088 0.0 2.0 300488 21008 ? S 16:36 0:12 /usr/sbin/apache2 -k start www-data 6114 0.0 1.7 298548 18268 ? S 16:37 0:12 /usr/sbin/apache2 -k start www-data 6134 0.0 1.6 296688 16532 ? S 16:37 0:04 /usr/sbin/apache2 -k start www-data 6193 0.0 1.7 297908 17420 ? S 16:38 0:08 /usr/sbin/apache2 -k start www-data 6821 0.0 1.8 299556 19072 ? S 16:43 0:11 /usr/sbin/apache2 -k start www-data 7058 0.0 1.7 298676 18204 ? S 16:48 0:10 /usr/sbin/apache2 -k start www-data 7065 0.0 1.8 299028 18868 ? S 16:48 0:11 /usr/sbin/apache2 -k start www-data 7084 0.0 1.8 299508 19020 ? S 16:48 0:11 /usr/sbin/apache2 -k start www-data 7221 0.0 1.8 299160 18768 ? S 16:51 0:09 /usr/sbin/apache2 -k start www-data 11453 0.0 1.7 298484 18256 ? S 09:39 0:02 /usr/sbin/apache2 -k start root 26324 0.0 0.0 8084 920 pts/0 S+ 22:52 0:00 grep --color=auto apache root 28517 0.0 0.0 4404 612 ? S Aug21 0:00 /bin/sh -c /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log root 28518 0.0 0.0 4404 616 ? S Aug21 0:00 /bin/sh -c /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log root 28519 0.0 0.0 4404 612 ? S Aug21 0:00 /bin/sh -c /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log root 28520 0.0 0.0 4404 616 ? S Aug21 0:00 /bin/sh -c /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log root 28521 0.0 0.0 4312 552 ? S Aug21 0:00 /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log root 28522 0.0 0.0 4308 548 ? S Aug21 0:07 /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log root 28523 0.0 0.0 4176 352 ? S Aug21 0:00 /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log root 28524 0.0 0.0 4180 356 ? S Aug21 0:00 /usr/sbin/cronolog /var/log/apache2/cocoa/%Y/%m/access-%Y-%m-%d.log Today's only error log is blow. [Sat Aug 23 22:52:47 2014] [notice] SIGHUP received. Attempting to restart [Sat Aug 23 22:52:47 2014] [notice] Apache/2.2.22 (Ubuntu) PHP/5.3.10-1ubuntu3.13 with Suhosin-Patch configured -- resuming normal operations traffic information: cat access-2014-08-23.log | cut -d " " -f4 |cut -d":" -f2 |sort|uniq -c |sort -nr 5692 14 5291 15 5083 16 4723 23 4463 12 4057 17 4011 11 3926 13 3852 10 3187 05 3176 09 3055 06 2790 07 2672 00 2608 02 2591 01 2577 04 2514 03 2497 08 707 22 88 18 After I use "sudo apachectl restart", user can connect my website. So I want to know? What is the problem? And if "sudo apachectl restart" is needed, can I automate run this command? Today this kind struts appear again, and I run netstat -a -n Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN tcp 0 0 115.28.146.116:80 125.39.208.120:50708 SYN_RECV tcp 0 0 115.28.146.116:80 125.39.208.158:50278 SYN_RECV tcp 0 0 115.28.146.116:80 220.173.142.152:23320 SYN_RECV tcp 0 0 115.28.146.116:80 60.173.247.132:52851 SYN_RECV tcp 0 0 115.28.146.116:80 125.39.208.158:39397 SYN_RECV tcp 0 0 115.28.146.116:80 125.39.208.158:56894 SYN_RECV tcp 0 0 115.28.146.116:80 183.129.174.2:21291 SYN_RECV tcp 0 0 115.28.146.116:80 125.39.208.120:44499 SYN_RECV tcp 0 0 115.28.146.116:80 125.39.208.120:34017 SYN_RECV tcp 0 0 115.28.146.116:80 124.65.50.210:3774 SYN_RECV tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:15770 0.0.0.0:* LISTEN tcp 1 0 115.28.146.116:80 14.127.65.219:61633 CLOSE_WAIT tcp 305 0 115.28.146.116:80 125.39.208.120:37593 ESTABLISHED tcp 0 0 10.144.142.201:52866 10.146.6.61:3306 TIME_WAIT tcp 0 0 10.144.142.201:52873 10.146.6.61:3306 TIME_WAIT tcp 0 0 10.144.142.201:52868 10.146.6.61:3306 TIME_WAIT tcp 343 0 115.28.146.116:80 182.118.20.215:50709 ESTABLISHED tcp 0 0 115.28.146.116:54784 173.194.127.243:80 ESTABLISHED tcp 1 0 115.28.146.116:80 116.192.2.185:41253 CLOSE_WAIT tcp 0 0 10.144.142.201:52876 10.146.6.61:3306 ESTABLISHED tcp 559 0 115.28.146.116:80 218.241.144.114:54501 ESTABLISHED tcp 376 0 115.28.146.116:80 116.213.196.119:50604 CLOSE_WAIT tcp 1 0 115.28.146.116:80 113.36.238.28:59339 CLOSE_WAIT tcp 214 0 115.28.146.116:80 142.4.215.40:34443 ESTABLISHED tcp 0 0 115.28.146.116:48635 115.28.146.116:80 ESTABLISHED tcp 187 0 115.28.146.116:80 115.28.146.116:48635 ESTABLISHED tcp 0 0 10.144.142.201:52853 10.146.6.61:3306 TIME_WAIT tcp 594 0 115.28.146.116:80 183.129.174.2:7090 CLOSE_WAIT tcp 0 0 10.144.142.201:52874 10.146.6.61:3306 TIME_WAIT tcp 0 0 115.28.146.116:80 182.118.20.166:44081 TIME_WAIT tcp 1 0 115.28.146.116:80 113.36.238.28:59028 CLOSE_WAIT tcp 1 0 115.28.146.116:80 14.127.65.219:61665 CLOSE_WAIT tcp 0 0 10.144.142.201:52860 10.146.6.61:3306 TIME_WAIT tcp 0 0 10.144.142.201:46983 10.146.6.61:3306 ESTABLISHED tcp 0 2290 115.28.146.116:80 14.154.179.243:41049 FIN_WAIT1 tcp 0 0 10.144.142.201:42900 10.146.6.61:3306 ESTABLISHED tcp 571 0 115.28.146.116:80 220.173.142.152:23295 CLOSE_WAIT tcp 1 0 115.28.146.116:80 113.36.238.28:59337 CLOSE_WAIT tcp 438 0 115.28.146.116:80 42.120.74.202:31567 CLOSE_WAIT tcp 0 0 115.28.146.116:80 113.36.238.28:59498 ESTABLISHED tcp 259 0 115.28.146.116:80 66.249.65.56:36739 ESTABLISHED tcp 0 0 115.28.146.116:80 113.36.238.28:59341 ESTABLISHED tcp 0 0 115.28.146.116:80 142.4.215.40:34267 FIN_WAIT2 tcp 799 0 115.28.146.116:80 180.173.88.1:52779 ESTABLISHED tcp 0 0 115.28.146.116:80 117.136.25.132:25207 FIN_WAIT2 tcp 0 0 115.28.146.116:80 220.181.108.186:42540 TIME_WAIT tcp 0 0 10.144.142.201:59902 10.242.174.13:80 TIME_WAIT tcp 0 1820 115.28.146.116:80 218.22.140.90:39266 LAST_ACK tcp 0 0 115.28.146.116:80 66.249.65.64:56977 TIME_WAIT tcp 669 0 115.28.146.116:80 83.251.90.61:49664 ESTABLISHED tcp 0 0 10.144.142.201:52872 10.146.6.61:3306 TIME_WAIT tcp 233 0 115.28.146.116:80 54.202.88.0:43398 CLOSE_WAIT tcp 479 0 115.28.146.116:80 65.49.44.149:25739 ESTABLISHED tcp 378 0 115.28.146.116:80 148.251.124.173:39313 CLOSE_WAIT tcp 1 0 115.28.146.116:80 14.127.65.219:61697 CLOSE_WAIT tcp 1 0 115.28.146.116:80 49.4.158.2:52986 CLOSE_WAIT tcp 769 0 115.28.146.116:80 14.127.65.219:61537 ESTABLISHED tcp 0 0 10.144.142.201:52859 10.146.6.61:3306 TIME_WAIT tcp 0 0 10.144.142.201:55734 10.164.2.163:9200 TIME_WAIT tcp 563 0 115.28.146.116:80 202.55.20.10:22577 CLOSE_WAIT tcp 194 0 115.28.146.116:80 37.58.100.165:50908 CLOSE_WAIT tcp 791 0 115.28.146.116:80 116.192.2.185:45628 ESTABLISHED tcp 709 0 115.28.146.116:80 113.116.61.178:65209 ESTABLISHED tcp 706 0 115.28.146.116:80 183.227.44.237:54519 ESTABLISHED tcp 301 0 115.28.146.116:80 118.198.243.127:31180 ESTABLISHED tcp 0 0 10.144.142.201:55721 10.164.2.163:9200 TIME_WAIT tcp 0 0 10.144.142.201:55726 10.164.2.163:9200 TIME_WAIT tcp 0 0 10.144.142.201:55723 10.164.2.163:9200 TIME_WAIT tcp 681 0 115.28.146.116:80 83.251.90.61:49662 ESTABLISHED tcp 0 0 115.28.146.116:80 83.251.90.61:65274 TIME_WAIT tcp 1 0 115.28.146.116:80 113.36.238.28:59022 CLOSE_WAIT tcp 1 0 115.28.146.116:80 180.173.88.1:52781 CLOSE_WAIT tcp 1 0 115.28.146.116:80 113.36.238.28:59037 CLOSE_WAIT tcp 0 0 10.144.142.201:55728 10.164.2.163:9200 TIME_WAIT tcp 231 0 115.28.146.116:37596 110.75.102.62:80 CLOSE_WAIT tcp 1 0 115.28.146.116:80 14.127.65.219:61569 CLOSE_WAIT tcp 0 0 10.144.142.201:51310 10.146.6.61:3306 ESTABLISHED tcp 299 0 115.28.146.116:80 123.125.71.16:36281 ESTABLISHED tcp 0 0 115.28.146.116:48620 115.28.146.116:80 ESTABLISHED tcp 1 0 115.28.146.116:80 183.227.44.237:54520 CLOSE_WAIT tcp 1 0 115.28.146.116:80 113.36.238.28:59026 CLOSE_WAIT tcp 479 0 115.28.146.116:80 65.49.44.149:5490 ESTABLISHED tcp 665 0 115.28.146.116:80 83.251.90.61:49663 ESTABLISHED tcp 0 0 115.28.146.116:53744 173.194.127.147:80 ESTABLISHED tcp 1 0 115.28.146.116:80 113.36.238.28:59023 CLOSE_WAIT tcp 0 0 115.28.146.116:22 116.192.2.185:34205 ESTABLISHED tcp 333 0 115.28.146.116:80 149.174.113.111:54338 CLOSE_WAIT tcp 0 0 10.144.142.201:52861 10.146.6.61:3306 TIME_WAIT tcp 0 0 10.144.142.201:52863 10.146.6.61:3306 TIME_WAIT tcp 1 0 115.28.146.116:80 116.192.2.185:43272 CLOSE_WAIT tcp 767 0 115.28.146.116:80 49.4.158.2:52947 CLOSE_WAIT tcp 668 0 115.28.146.116:80 83.251.90.61:49665 ESTABLISHED tcp 642 0 115.28.146.116:80 222.78.185.50:55788 ESTABLISHED tcp 710 0 115.28.146.116:80 113.116.61.178:65264 ESTABLISHED tcp 284 0 115.28.146.116:80 157.55.39.243:65185 ESTABLISHED tcp 450 0 115.28.146.116:80 65.49.44.149:55496 ESTABLISHED tcp 1 0 115.28.146.116:80 116.192.2.185:36629 CLOSE_WAIT tcp 233 0 115.28.146.116:80 54.202.88.0:42424 CLOSE_WAIT tcp 187 0 115.28.146.116:80 115.28.146.116:48620 ESTABLISHED tcp 1 0 115.28.146.116:80 14.127.65.219:61601 CLOSE_WAIT tcp 776 0 115.28.146.116:80 202.118.253.102:64883 CLOSE_WAIT tcp 841 0 115.28.146.116:80 37.228.105.28:49472 ESTABLISHED tcp 787 0 115.28.146.116:80 112.65.226.198:52192 ESTABLISHED tcp 0 0 10.144.142.201:55717 10.164.2.163:9200 TIME_WAIT tcp 233 0 115.28.146.116:80 54.202.88.0:42855 CLOSE_WAIT tcp 379 0 115.28.146.116:80 101.226.166.219:2322 ESTABLISHED tcp 0 0 115.28.146.116:80 183.60.212.152:43063 CLOSE_WAIT tcp 1 0 115.28.146.116:80 180.173.88.1:52780 CLOSE_WAIT tcp 784 0 115.28.146.116:80 101.95.29.26:63094 ESTABLISHED tcp 463 0 115.28.146.116:80 65.49.44.149:53876 ESTABLISHED tcp 1 0 115.28.146.116:80 116.192.2.185:37946 CLOSE_WAIT tcp 479 0 115.28.146.116:80 65.49.44.149:41157 ESTABLISHED tcp 1 0 115.28.146.116:80 113.36.238.28:59036 CLOSE_WAIT tcp 1 0 115.28.146.116:80 49.4.158.2:52984 CLOSE_WAIT tcp 1 0 115.28.146.116:80 116.192.2.185:38100 CLOSE_WAIT tcp 0 0 10.144.142.201:52865 10.146.6.61:3306 TIME_WAIT tcp 1 0 115.28.146.116:80 113.36.238.28:59027 CLOSE_WAIT tcp 0 0 115.28.146.116:36508 173.194.127.81:80 ESTABLISHED tcp 210 0 115.28.146.116:80 188.143.232.123:47775 ESTABLISHED tcp 1 0 115.28.146.116:80 113.36.238.28:59025 CLOSE_WAIT tcp 0 0 10.144.142.201:52857 10.146.6.61:3306 TIME_WAIT tcp 654 0 115.28.146.116:80 49.4.158.2:52985 ESTABLISHED tcp 0 0 115.28.146.116:58627 110.75.102.62:80 ESTABLISHED tcp 782 0 115.28.146.116:80 180.153.219.13:40293 ESTABLISHED tcp 792 0 115.28.146.116:80 116.192.2.185:48187 CLOSE_WAIT tcp6 0 0 :::22 :::* LISTEN udp 0 0 115.28.146.116:123 0.0.0.0:* udp 0 0 10.144.142.201:123 0.0.0.0:* udp 0 0 127.0.0.1:123 0.0.0.0:* udp 0 0 0.0.0.0:123 0.0.0.0:* udp6 0 0 :::123 :::* Active UNIX domain sockets (servers and established) Proto RefCnt Flags Type State I-Node Path unix 2 [ ACC ] STREAM LISTENING 8447 /var/run/mysqld/mysqld.sock unix 2 [ ACC ] SEQPACKET LISTENING 6678 /run/udev/control unix 2 [ ACC ] STREAM LISTENING 6482 @/com/ubuntu/upstart unix 2 [ ACC ] STREAM LISTENING 7543 /var/run/dbus/system_bus_socket unix 7 [ ] DGRAM 7551 /dev/log unix 2 [ ACC ] STREAM LISTENING 7650 /var/run/nscd/socket unix 2 [ ] DGRAM 7156424 unix 3 [ ] STREAM CONNECTED 7156137 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 7156136 unix 2 [ ] DGRAM 7156135 unix 2 [ ] DGRAM 7155834 unix 2 [ ] DGRAM 9734 unix 3 [ ] STREAM CONNECTED 9151 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 9150 unix 3 [ ] STREAM CONNECTED 9136 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 9135 unix 3 [ ] STREAM CONNECTED 9106 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 9105 unix 2 [ ] DGRAM 9073 unix 3 [ ] STREAM CONNECTED 7575 /var/run/dbus/system_bus_socket unix 3 [ ] STREAM CONNECTED 7574 unix 3 [ ] STREAM CONNECTED 7565 unix 3 [ ] STREAM CONNECTED 7564 unix 3 [ ] STREAM CONNECTED 7332 @/com/ubuntu/upstart unix 3 [ ] STREAM CONNECTED 7330 unix 3 [ ] DGRAM 6712 unix 3 [ ] DGRAM 6711 unix 3 [ ] STREAM CONNECTED 6662 @/com/ubuntu/upstart unix 3 [ ] STREAM CONNECTED 6635

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• Going to UKOUG in December? Meet the Fusion User Experience Advocates

  - by mvaughan

  By Misha Vaughan, Oracle Applications User Experience The Oracle Fusion User Experience Advocates (FXA) will be hosting a roundtable event at UKOUG in December. The FXA program is run by me and Andrew Gilmour, my co-host and fellow team member from the Oracle Applications User Experience group. At this event, our Advocates will be doing the talking -- or rather, answering your questions. If you come to the roundtable, you will find out that the FXA members are a subset of Oracle ACE Directors who have taken on a commitment to participate in deep-dive training on the Oracle Fusion Applications User Experience, and then blend that training into their own areas of expertise – be it applications, Fusion Middleware, or SOA. The Advocates then make themselves available to local special-interest groups and geographic interest groups for public-speaking events, bringing with them a piece of the Fusion Applications user experience story – including demos. Come to the roundtable for a chance to chat with Andrew and me, but more importantly, take this opportunity to meet some of the Advocates firsthand and find out what they can offer to you and your professional group. For more information on the events and presentations that the Applications User Experience team will take part in at UKOUG, visit our Usable Apps Events page.

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• Calculating a child object's Position, Rotation and Scale values?

  - by Sergio Plascencia

  I am making my own game editor, but have encountered the following problem: I have two objects, A and B. A's initial values: Position: (3,3,3), Rotation: (45,10,0), Scale(1,2,2.5) B's initial values: Position: (1,1,1), Rotation: (10,34,18), Scale(1.5,2,1) If I now make B a child of A, I need to re-calculate the B's Position, Rotation and Scale relative to A such that it maintains its current position, rotation and scale in world coordinates. So B's position would now be (-2, -2, -2) since now A is its center and (-2, -2, -2) will keep B in the same position. I think I got the Position and scale figured out, but not rotation. So I opened Unity and ran the same example and I noticed that when making a child object, the child object did not move at all. but had its Position, Rotation and Scale values changed relative to the parent. For example: Unity (Parent Object "A"): Position: (0,0,0) Rotation: (45,10,0) Scale: (1,1,1) Unity (Child Object "B"): Position: (0,0,0) Rotation: (0,0,0) Scale: (1,1,1) When B becomes a child of A, it's rotation values become: X: -44.13605 Y: -14.00195 Z: 9.851074 If I plug the same rotation values into the B object in my editor, the object does not move at all. How did Unity arrive at those rotation values for the child? What are the calculations? If you can put all the equations for the Position, Rotation or Scale then I can double check I am doing it correctly but the Rotation is what I really need.

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• Should I use subdomains or subfolders for my user groups?

  - by bilygates

  Hello, I run a photography website where each user has its own subdomain (i.e. user.site.com). I'm thinking of adding user groups but I'm unable to decide if I should also associate a separate subdomain or simply a subfolder for each group: Subfolders (www.site.com/groups/my-group) Pros: Easier to maintain from a tehnical p.o.v. Cons: Harder to memorize. The URLs can get really long (www.site.com/groups/my-group/albums/my-album/) Subdomains (my-group.site.com) Pros: Easier to memorize. Shorter URLs. One might have the impression that such an URL is somewhat more "independent" from the main site. Cons: Group and user names belong to the same name space, so we need to check for collisions when creating a new user/group. One cannot determine the content of the page by only reading the URL: Is x.site.com a user page or a group page? What's your opinion on the matter? I should note that DeviantArt.com uses the 2nd option (that's where I got the idea). Thank you in advance!

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• How to parse SOAP response from ruby client?

  - by Richard O'Neil

  Hi I am learning Ruby and I have written the following code to find out how to consume SOAP services: require 'soap/wsdlDriver' wsdl="http://www.abundanttech.com/webservices/deadoralive/deadoralive.wsdl" service=SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver weather=service.getTodaysBirthdays('1/26/2010') The response that I get back is: #<SOAP::Mapping::Object:0x80ac3714 {http://www.abundanttech.com/webservices/deadoralive} getTodaysBirthdaysResult=#<SOAP::Mapping::Object:0x80ac34a8 {http://www.w3.org/2001/XMLSchema}schema=#<SOAP::Mapping::Object:0x80ac3214 {http://www.w3.org/2001/XMLSchema}element=#<SOAP::Mapping::Object:0x80ac2f6c {http://www.w3.org/2001/XMLSchema}complexType=#<SOAP::Mapping::Object:0x80ac2cc4 {http://www.w3.org/2001/XMLSchema}choice=#<SOAP::Mapping::Object:0x80ac2a1c {http://www.w3.org/2001/XMLSchema}element=#<SOAP::Mapping::Object:0x80ac2774 {http://www.w3.org/2001/XMLSchema}complexType=#<SOAP::Mapping::Object:0x80ac24cc {http://www.w3.org/2001/XMLSchema}sequence=#<SOAP::Mapping::Object:0x80ac2224 {http://www.w3.org/2001/XMLSchema}element=[#<SOAP::Mapping::Object:0x80ac1f7c>, #<SOAP::Mapping::Object:0x80ac13ec>, #<SOAP::Mapping::Object:0x80ac0a28>, #<SOAP::Mapping::Object:0x80ac0078>, #<SOAP::Mapping::Object:0x80abf6c8>, #<SOAP::Mapping::Object:0x80abed18>] >>>>>>> {urn:schemas-microsoft-com:xml-diffgram-v1}diffgram=#<SOAP::Mapping::Object:0x80abe6c4 {}NewDataSet=#<SOAP::Mapping::Object:0x80ac1220 {}Table=[#<SOAP::Mapping::Object:0x80ac75e4 {}FullName="Cully, Zara" {}BirthDate="01/26/1892" {}DeathDate="02/28/1979" {}Age="(87)" {}KnownFor="The Jeffersons" {}DeadOrAlive="Dead">, #<SOAP::Mapping::Object:0x80b778f4 {}FullName="Feiffer, Jules" {}BirthDate="01/26/1929" {}DeathDate=#<SOAP::Mapping::Object:0x80c7eaf4> {}Age="81" {}KnownFor="Cartoonists" {}DeadOrAlive="Alive">]>>>> I am having a great deal of difficulty figuring out how to parse and show the returned information in a nice table, or even just how to loop through the records and have access to each element (ie. FullName,Age,etc). I went through the whole "getTodaysBirthdaysResult.methods - Object.new.methods" and kept working down to try and work out how to access the elements, but then I get to the array and I got lost. Any help that can be offered would be appreciated.

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• Strange befaviour of spring transaction support for JPA + Hibernate +@Transactional annotation

  - by abovesun

  I found out really strange behavior on relatively simple use case, probably I can't understand it because of not deep knowledges of spring @Transactional nature, but this is quite interesting. I have simple User dao that extends spring JpaDaoSupport class and contains standard save method: @Transactional public User save(User user) { getJpaTemplate().persist(user); return user; } If was working fine until I've add new method to same class: User getSuperUser(), this method should return user with isAdmin == true, and if there is no super user in db, method should create one. Thats how it was looking like: public User createSuperUser() { User admin = null; try { admin = (User) getJpaTemplate().execute(new JpaCallback() { public Object doInJpa(EntityManager em) throws PersistenceException { return em.createQuery("select u from UserImpl u where u.admin = true").getSingleResult(); } }); } catch (EmptyResultDataAccessException ex) { User admin = new User('login', 'password'); admin.setAdmin(true); save(admin); // THIS IS THE POINT WHERE STRANGE THING COMING OUT } return admin; } As you see code is strange forward and I was very confused when found out that no transaction was created and committed on invocation of save(admin) method and no new user wasn't actually created despite @Transactional annotation. In result we have situation: when save() method invokes from outside of UserDAO class - @Transactional annotation counted and user successfully created, but if save() invokes from inside of other method of the same dao class - @Transactional annotation ignored. Here how I was change save() method to force it always create transaction. public User save(User user) { getJpaTemplate().execute(new JpaCallback() { public Object doInJpa(EntityManager em) throws PersistenceException { em.getTransaction().begin(); em.persist(user); em.getTransaction().commit(); return null; } }); return user; } As you see I manually invoke begin and commit. Any ideas?

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• Rails dealing with blank params at controller level

  - by stephenmurdoch

  I have a User model: class User < ActiveRecord::Base has_secure_password # validation lets users update accounts without entering password validates :password, presence: { on: :create }, allow_blank: { on: :update } validates :password_confirmation, presence: { if: :password_digest_changed? } end I also have a password_reset_controller: def update # this is emailed to the user by the create action - not shown @user=User.find_by_password_reset_token!(params[:id]) if @user.update_attributes(params[:user]) # user is signed in if password and confirmation pass validations sign_in @user redirect_to root_url, :notice => "Password has been reset." else flash.now[:error] = "Something went wrong, please try again." render :edit end end Can you see the problem here? A user can submit a blank a password/confirmation and rails will sign them in, because the User model allows blank on update. It's not a security concern, since an attacker would still need access to a user's email account before they could get anywhere near this action, but my problem is that a user submitting 6 blank chars would be signed in, and their password would not be changed for them, which could lead to confusion later on. So, I've come up with the following solution, and I'd like to check if there's a better way of doing it, before I push to production: def update @user=User.find_by_password_reset_token!(params[:id]) # if user submits blank password, add an error, and render edit action if params[:user][:password].blank? @user.errors.add(:password_digest, "can't be blank.") render :edit elsif @user.update_attributes(params[:user]) sign_in @user redirect_to root_url, :notice => "Password has been reset." else flash.now[:error] = "Something went wrong, please try again." render :edit end end Should I be checking for nil as well as blank? Are there any rails patterns or idiomatic ruby techniques for solving this? [Fwiw, I've got required: true on the html inputs, but want this handled server side too.]

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• Error Installing ruby with RVM Single User mode on Arch Linux

  - by ChrisBurnor

  I've just installed RVM on ArchLinux x64 in single user mode via the recommended install script curl -L https://get.rvm.io | bash -s stable I've also installed all the requirements listed in rvm requirements However, I'm having trouble actually installing any version of ruby. And getting the following error: arch:~ % rvm install 1.9.3 No binary rubies available for: ///ruby-1.9.3-p194. Continuing with compilation. Please read 'rvm mount' to get more information on binary rubies. Fetching yaml-0.1.4.tar.gz to /home/christopher/.rvm/archives % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 460k 100 460k 0 0 702k 0 --:--:-- --:--:-- --:--:-- 767k Extracting yaml-0.1.4.tar.gz to /home/christopher/.rvm/src Prepare yaml in /home/christopher/.rvm/src/yaml-0.1.4. Configuring yaml in /home/christopher/.rvm/src/yaml-0.1.4. Error running ' ./configure --prefix=/home/christopher/.rvm/usr ', please read /home/christopher/.rvm/log/ruby-1.9.3-p194/yaml/configure.log Compiling yaml in /home/christopher/.rvm/src/yaml-0.1.4. Error running 'make', please read /home/christopher/.rvm/log/ruby-1.9.3-p194/yaml/make.log Please note that it's required to reinstall all rubies: rvm reinstall all --force Installing Ruby from source to: /home/christopher/.rvm/rubies/ruby-1.9.3-p194, this may take a while depending on your cpu(s)... ruby-1.9.3-p194 - #downloading ruby-1.9.3-p194, this may take a while depending on your connection... ruby-1.9.3-p194 - #extracting ruby-1.9.3-p194 to /home/christopher/.rvm/src/ruby-1.9.3-p194 ruby-1.9.3-p194 - #extracted to /home/christopher/.rvm/src/ruby-1.9.3-p194 Skipping configure step, 'configure' does not exist, did autoreconf not run successfully? ruby-1.9.3-p194 - #compiling Error running 'make', please read /home/christopher/.rvm/log/ruby-1.9.3-p194/make.log There has been an error while running make. Halting the installation. The log files are as follows: arch:~ % cat ~/.rvm/log/ruby-1.9.3-p194/yaml/configure.log __rvm_log_command:32: permission denied: arch:~ % cat ~/.rvm/log/ruby-1.9.3-p194/yaml/make.log make: *** No targets specified and no makefile found. Stop. arch:~ % cat ~/.rvm/log/ruby-1.9.3-p194/make.log make: *** No targets specified and no makefile found. Stop.

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• Indirect Postfix bounces create new user directories

  - by hheimbuerger

  I'm running Postfix on my personal server in a data centre. I am not a professional mail hoster and not a Postfix expert, it is just used for a few domains served from that server. IIRC, I mostly followed this howto when setting up Postfix. Mails addressed to one of the domains the server manages are delivered locally (/srv/mail) to be fetched with Dovecot. Mails to other domains require usage of SMTPS. The mailbox configuration is stored in MySQL. The problem I have is that I suddenly found new mailboxes being created on the disk. Let's say I have the domain 'example.com'. Then I would have lots of new directories, e.g. /srv/mail/example.com/abenaackart /srv/mail/example.com/abenaacton etc. There are no entries for these addresses in my database, neither as a mailbox nor as an alias. It's clearly spam from auto-generated names. Most of them start with 'a', a few with 'b' and a couple of random ones with other letters. At first I was afraid of an attack, but all security restrictions seem to work. If I try to send mail to these addresses, I get an "Recipient address rejected: User unknown in virtual mailbox table" during the 'RCPT TO' stage. So I looked into the mails stored in these mailboxes. Turns out that all of them are bounces. It seems like all of them were sent from a randomly generated name to an alias that really exists on my system, but pointed to an invalid destination address on another host. So Postfix accepted it, then tried to redirect it to another mail server, which rejected it. This bounced back to my Postfix server, which now took the bounce and stored it locally -- because it seemed to be originating from one of the addresses it manages. Example: My Postfix server handles the example.com domain. [email protected] is configured to redirect to [email protected]. [email protected] has since been deleted from the Hotmail servers. Spammer sends mail with FROM:[email protected] and TO:[email protected]. My Postfix server accepts the mail and tries to hand it off to hotmail.com. hotmail.com sends a bounce back. My Postfix server accepts the bounce and delivers it to /srv/mail/example.com/bob. The last step is what I don't want. I'm not quite sure what it should do instead, but creating hundreds of new mailboxes on my disk is not what I want... Any ideas how to get rid of this behaviour? I'll happily post parts of my configuration, but I'm not really sure where to start debugging the problem at this point.

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• Java Cloud Service Integration to REST Service

  - by Jani Rautiainen

  Service (JCS) provides a platform to develop and deploy business applications in the cloud. In Fusion Applications Cloud deployments customers do not have the option to deploy custom applications developed with JDeveloper to ensure the integrity and supportability of the hosted application service. Instead the custom applications can be deployed to the JCS and integrated to the Fusion Application Cloud instance. This series of articles will go through the features of JCS, provide end-to-end examples on how to develop and deploy applications on JCS and how to integrate them with the Fusion Applications instance. In this article a custom application integrating with REST service will be implemented. We will use REST services provided by Taleo as an example; however the same approach will work with any REST service. In this example the data from the REST service is used to populate a dynamic table. Pre-requisites Access to Cloud instance In order to deploy the application access to a JCS instance is needed, a free trial JCS instance can be obtained from Oracle Cloud site. To register you will need a credit card even if the credit card will not be charged. To register simply click "Try it" and choose the "Java" option. The confirmation email will contain the connection details. See this video for example of the registration.Once the request is processed you will be assigned 2 service instances; Java and Database. Applications deployed to the JCS must use Oracle Database Cloud Service as their underlying database. So when JCS instance is created a database instance is associated with it using a JDBC data source.The cloud services can be monitored and managed through the web UI. For details refer to Getting Started with Oracle Cloud. JDeveloper JDeveloper contains Cloud specific features related to e.g. connection and deployment. To use these features download the JDeveloper from JDeveloper download site by clicking the "Download JDeveloper 11.1.1.7.1 for ADF deployment on Oracle Cloud" link, this version of JDeveloper will have the JCS integration features that will be used in this article. For versions that do not include the Cloud integration features the Oracle Java Cloud Service SDK or the JCS Java Console can be used for deployment. For details on installing and configuring the JDeveloper refer to the installation guideFor details on SDK refer to Using the Command-Line Interface to Monitor Oracle Java Cloud Service and Using the Command-Line Interface to Manage Oracle Java Cloud Service. Access to a local database The database associated with the JCS instance cannot be connected to with JDBC.  Since creating ADFbc business component requires a JDBC connection we will need access to a local database. 3rd party libraries This example will use some 3rd party libraries for implementing the REST service call and processing the input / output content. Other libraries may also be used, however these are tested to work. Jersey 1.x Jersey library will be used as a client to make the call to the REST service. JCS documentation for supported specifications states: Java API for RESTful Web Services (JAX-RS) 1.1 So Jersey 1.x will be used. Download the single-JAR Jersey bundle; in this example Jersey 1.18 JAR bundle is used. Json-simple Jjson-simple library will be used to process the json objects. Download the  JAR file; in this example json-simple-1.1.1.jar is used. Accessing data in Taleo Before implementing the application it is beneficial to familiarize oneself with the data in Taleo. Easiest way to do this is by using a RESTClient on your browser. Once added to the browser you can access the UI: The client can be used to call the REST services to test the URLs and data before adding them into the application. First derive the base URL for the service this can be done with: Method: GET URL: https://tbe.taleo.net/MANAGER/dispatcher/api/v1/serviceUrl/<company name> The response will contain the base URL to be used for the service calls for the company. Next obtain authentication token with: Method: POST URL: https://ch.tbe.taleo.net/CH07/ats/api/v1/login?orgCode=<company>&userName=<user name>&password=<password> The response includes an authentication token that can be used for few hours to authenticate with the service: {   "response": {     "authToken": "webapi26419680747505890557"   },   "status": {     "detail": {},     "success": true   } } To authenticate the service calls navigate to "Headers -> Custom Header": And add a new request header with: Name: Cookie Value: authToken=webapi26419680747505890557 Once authentication token is defined the tool can be used to invoke REST services; for example: Method: GET URL: https://ch.tbe.taleo.net/CH07/ats/api/v1/object/candidate/search.xml?status=16 This data will be used on the application to be created. For details on the Taleo REST services refer to the Taleo Business Edition REST API Guide. Create Application First Fusion Web Application is created and configured. Start JDeveloper and click "New Application": Application Name: JcsRestDemo Application Package Prefix: oracle.apps.jcs.test Application Template: Fusion Web Application (ADF) Configure Local Cloud Connection Follow the steps documented in the "Java Cloud Service ADF Web Application" article to configure a local database connection needed to create the ADFbc objects. Configure Libraries Add the 3rd party libraries into the class path. Create the following directory and copy the jar files into it: <JDEV_USER_HOME>/JcsRestDemo/lib  Select the "Model" project, navigate "Application -> Project Properties -> Libraries and Classpath -> Add JAR / Directory" and add the 2 3rd party libraries: Accessing Data from Taleo To access data from Taleo using the REST service the 3rd party libraries will be used. 2 Java classes are implemented, one representing the Candidate object and another for accessing the Taleo repository Candidate Candidate object is a POJO object used to represent the candidate data obtained from the Taleo repository. The data obtained will be used to populate the ADFbc object used to display the data on the UI. The candidate object contains simply the variables we obtain using the REST services and the getters / setters for them: Navigate "New -> General -> Java -> Java Class", enter "Candidate" as the name and create it in the package "oracle.apps.jcs.test.model".  Copy / paste the following as the content: import oracle.jbo.domain.Number; public class Candidate { private Number candId; private String firstName; private String lastName; public Candidate() { super(); } public Candidate(Number candId, String firstName, String lastName) { super(); this.candId = candId; this.firstName = firstName; this.lastName = lastName; } public void setCandId(Number candId) { this.candId = candId; } public Number getCandId() { return candId; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getFirstName() { return firstName; } public void setLastName(String lastName) { this.lastName = lastName; } public String getLastName() { return lastName; } } Taleo Repository Taleo repository class will interact with the Taleo REST services. The logic will query data from Taleo and populate Candidate objects with the data. The Candidate object will then be used to populate the ADFbc object used to display data on the UI. Navigate "New -> General -> Java -> Java Class", enter "TaleoRepository" as the name and create it in the package "oracle.apps.jcs.test.model".  Copy / paste the following as the content (for details of the implementation refer to the documentation in the code): import com.sun.jersey.api.client.Client; import com.sun.jersey.api.client.ClientResponse; import com.sun.jersey.api.client.WebResource; import com.sun.jersey.core.util.MultivaluedMapImpl; import java.io.StringReader; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Map; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.MultivaluedMap; import oracle.jbo.domain.Number; import org.json.simple.JSONArray; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; /** * This class interacts with the Taleo REST services */ public class TaleoRepository { /** * Connection information needed to access the Taleo services */ String _company = null; String _userName = null; String _password = null; /** * Jersey client used to access the REST services */ Client _client = null; /** * Parser for processing the JSON objects used as * input / output for the services */ JSONParser _parser = null; /** * The base url for constructing the REST URLs. This is obtained * from Taleo with a service call */ String _baseUrl = null; /** * Authentication token obtained from Taleo using a service call. * The token can be used to authenticate on subsequent * service calls. The token will expire in 4 hours */ String _authToken = null; /** * Static url that can be used to obtain the url used to construct * service calls for a given company */ private static String _taleoUrl = "https://tbe.taleo.net/MANAGER/dispatcher/api/v1/serviceUrl/"; /** * Default constructor for the repository * Authentication details are passed as parameters and used to generate * authentication token. Note that each service call will * generate its own token. This is done to avoid dealing with the expiry * of the token. Also only 20 tokens are allowed per user simultaneously. * So instead for each call there is login / logout. * * @param company the company for which the service calls are made * @param userName the user name to authenticate with * @param password the password to authenticate with. */ public TaleoRepository(String company, String userName, String password) { super(); _company = company; _userName = userName; _password = password; _client = Client.create(); _parser = new JSONParser(); _baseUrl = getBaseUrl(); } /** * This obtains the base url for a company to be used * to construct the urls for service calls * @return base url for the service calls */ private String getBaseUrl() { String result = null; if (null != _baseUrl) { result = _baseUrl; } else { try { String company = _company; WebResource resource = _client.resource(_taleoUrl + company); ClientResponse response = resource.type(MediaType.APPLICATION_FORM_URLENCODED_TYPE).get(ClientResponse.class); String entity = response.getEntity(String.class); JSONObject jsonObject = (JSONObject)_parser.parse(new StringReader(entity)); JSONObject jsonResponse = (JSONObject)jsonObject.get("response"); result = (String)jsonResponse.get("URL"); } catch (Exception ex) { ex.printStackTrace(); } } return result; } /** * Generates authentication token, that can be used to authenticate on * subsequent service calls. Note that each service call will * generate its own token. This is done to avoid dealing with the expiry * of the token. Also only 20 tokens are allowed per user simultaneously. * So instead for each call there is login / logout. * @return authentication token that can be used to authenticate on * subsequent service calls */ private String login() { String result = null; try { MultivaluedMap<String, String> formData = new MultivaluedMapImpl(); formData.add("orgCode", _company); formData.add("userName", _userName); formData.add("password", _password); WebResource resource = _client.resource(_baseUrl + "login"); ClientResponse response = resource.type(MediaType.APPLICATION_FORM_URLENCODED_TYPE).post(ClientResponse.class, formData); String entity = response.getEntity(String.class); JSONObject jsonObject = (JSONObject)_parser.parse(new StringReader(entity)); JSONObject jsonResponse = (JSONObject)jsonObject.get("response"); result = (String)jsonResponse.get("authToken"); } catch (Exception ex) { throw new RuntimeException("Unable to login ", ex); } if (null == result) throw new RuntimeException("Unable to login "); return result; } /** * Releases a authentication token. Each call to login must be followed * by call to logout after the processing is done. This is required as * the tokens are limited to 20 per user and if not released the tokens * will only expire after 4 hours. * @param authToken */ private void logout(String authToken) { WebResource resource = _client.resource(_baseUrl + "logout"); resource.header("cookie", "authToken=" + authToken).post(ClientResponse.class); } /** * This method is used to obtain a list of candidates using a REST * service call. At this example the query is hard coded to query * based on status. The url constructed to access the service is: * <_baseUrl>/object/candidate/search.xml?status=16 * @return List of candidates obtained with the service call */ public List<Candidate> getCandidates() { List<Candidate> result = new ArrayList<Candidate>(); try { // First login, note that in finally block we must have logout _authToken = "authToken=" + login(); /** * Construct the URL, the resulting url will be: * <_baseUrl>/object/candidate/search.xml?status=16 */ MultivaluedMap<String, String> formData = new MultivaluedMapImpl(); formData.add("status", "16"); JSONArray searchResults = (JSONArray)getTaleoResource("object/candidate/search", "searchResults", formData); /** * Process the results, the resulting JSON object is something like * this (simplified for readability): * * { * "response": * { * "searchResults": * [ * { * "candidate": * { * "candId": 211, * "firstName": "Mary", * "lastName": "Stochi", * logic here will find the candidate object(s), obtain the desired * data from them, construct a Candidate object based on the data * and add it to the results. */ for (Object object : searchResults) { JSONObject temp = (JSONObject)object; JSONObject candidate = (JSONObject)findObject(temp, "candidate"); Long candIdTemp = (Long)candidate.get("candId"); Number candId = (null == candIdTemp ? null : new Number(candIdTemp)); String firstName = (String)candidate.get("firstName"); String lastName = (String)candidate.get("lastName"); result.add(new Candidate(candId, firstName, lastName)); } } catch (Exception ex) { ex.printStackTrace(); } finally { if (null != _authToken) logout(_authToken); } return result; } /** * Convenience method to construct url for the service call, invoke the * service and obtain a resource from the response * @param path the path for the service to be invoked. This is combined * with the base url to construct a url for the service * @param resource the key for the object in the response that will be * obtained * @param parameters any parameters used for the service call. The call * is slightly different depending whether parameters exist or not. * @return the resource from the response for the service call */ private Object getTaleoResource(String path, String resource, MultivaluedMap<String, String> parameters) { Object result = null; try { WebResource webResource = _client.resource(_baseUrl + path); ClientResponse response = null; if (null == parameters) response = webResource.header("cookie", _authToken).get(ClientResponse.class); else response = webResource.queryParams(parameters).header("cookie", _authToken).get(ClientResponse.class); String entity = response.getEntity(String.class); JSONObject jsonObject = (JSONObject)_parser.parse(new StringReader(entity)); result = findObject(jsonObject, resource); } catch (Exception ex) { ex.printStackTrace(); } return result; } /** * Convenience method to recursively find a object with an key * traversing down from a given root object. This will traverse a * JSONObject / JSONArray recursively to find a matching key, if found * the object with the key is returned. * @param root root object which contains the key searched for * @param key the key for the object to search for * @return the object matching the key */ private Object findObject(Object root, String key) { Object result = null; if (root instanceof JSONObject) { JSONObject rootJSON = (JSONObject)root; if (rootJSON.containsKey(key)) { result = rootJSON.get(key); } else { Iterator children = rootJSON.entrySet().iterator(); while (children.hasNext()) { Map.Entry entry = (Map.Entry)children.next(); Object child = entry.getValue(); if (child instanceof JSONObject || child instanceof JSONArray) { result = findObject(child, key); if (null != result) break; } } } } else if (root instanceof JSONArray) { JSONArray rootJSON = (JSONArray)root; for (Object child : rootJSON) { if (child instanceof JSONObject || child instanceof JSONArray) { result = findObject(child, key); if (null != result) break; } } } return result; } }   Creating Business Objects While JCS application can be created without a local database, the local database is required when using ADFbc objects even if database objects are not referred. For this example we will create a "Transient" view object that will be programmatically populated based the data obtained from Taleo REST services. Creating ADFbc objects Choose the "Model" project and navigate "New -> Business Tier : ADF Business Components : View Object". On the "Initialize Business Components Project" choose the local database connection created in previous step. On Step 1 enter "JcsRestDemoVO" on the "Name" and choose "Rows populated programmatically, not based on query": On step 2 create the following attributes: CandId Type: Number Updatable: Always Key Attribute: checked Name Type: String Updatable: Always On steps 3 and 4 accept defaults and click "Next".  On step 5 check the "Application Module" checkbox and enter "JcsRestDemoAM" as the name: Click "Finish" to generate the objects. Populating the VO To display the data on the UI the "transient VO" is populated programmatically based on the data obtained from the Taleo REST services. Open the "JcsRestDemoVOImpl.java". Copy / paste the following as the content (for details of the implementation refer to the documentation in the code): import java.sql.ResultSet; import java.util.List; import java.util.ListIterator; import oracle.jbo.server.ViewObjectImpl; import oracle.jbo.server.ViewRowImpl; import oracle.jbo.server.ViewRowSetImpl; // --------------------------------------------------------------------- // --- File generated by Oracle ADF Business Components Design Time. // --- Tue Feb 18 09:40:25 PST 2014 // --- Custom code may be added to this class. // --- Warning: Do not modify method signatures of generated methods. // --------------------------------------------------------------------- public class JcsRestDemoVOImpl extends ViewObjectImpl { /** * This is the default constructor (do not remove). */ public JcsRestDemoVOImpl() { } @Override public void executeQuery() { /** * For some reason we need to reset everything, otherwise * 2nd entry to the UI screen may fail with * "java.util.NoSuchElementException" in createRowFromResultSet * call to "candidates.next()". I am not sure why this is happening * as the Iterator is new and "hasNext" is true at the point * of the execution. My theory is that since the iterator object is * exactly the same the VO cache somehow reuses the iterator including * the pointer that has already exhausted the iterable elements on the * previous run. Working around the issue * here by cleaning out everything on the VO every time before query * is executed on the VO. */ getViewDef().setQuery(null); getViewDef().setSelectClause(null); setQuery(null); this.reset(); this.clearCache(); super.executeQuery(); } /** * executeQueryForCollection - overridden for custom java data source support. */ protected void executeQueryForCollection(Object qc, Object[] params, int noUserParams) { /** * Integrate with the Taleo REST services using TaleoRepository class. * A list of candidates matching a hard coded query is obtained. */ TaleoRepository repository = new TaleoRepository(<company>, <username>, <password>); List<Candidate> candidates = repository.getCandidates(); /** * Store iterator for the candidates as user data on the collection. * This will be used in createRowFromResultSet to create rows based on * the custom iterator. */ ListIterator<Candidate> candidatescIterator = candidates.listIterator(); setUserDataForCollection(qc, candidatescIterator); super.executeQueryForCollection(qc, params, noUserParams); } /** * hasNextForCollection - overridden for custom java data source support. */ protected boolean hasNextForCollection(Object qc) { boolean result = false; /** * Determines whether there are candidates for which to create a row */ ListIterator<Candidate> candidates = (ListIterator<Candidate>)getUserDataForCollection(qc); result = candidates.hasNext(); /** * If all candidates to be created indicate that processing is done */ if (!result) { setFetchCompleteForCollection(qc, true); } return result; } /** * createRowFromResultSet - overridden for custom java data source support. */ protected ViewRowImpl createRowFromResultSet(Object qc, ResultSet resultSet) { /** * Obtain the next candidate from the collection and create a row * for it. */ ListIterator<Candidate> candidates = (ListIterator<Candidate>)getUserDataForCollection(qc); ViewRowImpl row = createNewRowForCollection(qc); try { Candidate candidate = candidates.next(); row.setAttribute("CandId", candidate.getCandId()); row.setAttribute("Name", candidate.getFirstName() + " " + candidate.getLastName()); } catch (Exception e) { e.printStackTrace(); } return row; } /** * getQueryHitCount - overridden for custom java data source support. */ public long getQueryHitCount(ViewRowSetImpl viewRowSet) { /** * For this example this is not implemented rather we always return 0. */ return 0; } } Creating UI Choose the "ViewController" project and navigate "New -> Web Tier : JSF : JSF Page". On the "Create JSF Page" enter "JcsRestDemo" as name and ensure that the "Create as XML document (*.jspx)" is checked.  Open "JcsRestDemo.jspx" and navigate to "Data Controls -> JcsRestDemoAMDataControl -> JcsRestDemoVO1" and drag & drop the VO to the "<af:form> " as a "ADF Read-only Table": Accept the defaults in "Edit Table Columns". To execute the query navigate to to "Data Controls -> JcsRestDemoAMDataControl -> JcsRestDemoVO1 -> Operations -> Execute" and drag & drop the operation to the "<af:form> " as a "Button": Deploying to JCS Follow the same steps as documented in previous article"Java Cloud Service ADF Web Application". Once deployed the application can be accessed with URL: https://java-[identity domain].java.[data center].oraclecloudapps.com/JcsRestDemo-ViewController-context-root/faces/JcsRestDemo.jspx The UI displays a list of candidates obtained from the Taleo REST Services: Summary In this article we learned how to integrate with REST services using Jersey library in JCS. In future articles various other integration techniques will be covered.

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• NIS password mapping question

  - by papoyan

  I have NIS server with user "techsupport", which has uid/gid = 517 I've configured NIS and NFS on that server, as well as NFS/NIS client on the remote web server. Now I need to techsupport user to be able to login to web server using techsupport username, but HAVE root privileges. I need this, so I can easily track, which support agent doing what on the web server. Everything works fine, when from NIS server, I ssh to the web server with tech support user nisserver# ssh [email protected] I can authenticate against the NIS server just fine, and my home directory that is on NIS server, get's mounted on web server just fine. The Only two problems I have are : my GID on web server is webserver# id uid=517(techsupport) gid=517(client_jonny) groups=517(client_jonny) (as you can see, that it picked up gid of a client that exists on the web server, since it's same number) I need to make sure, that my "techsupport" user has ROOT privileges. How can I achieve this? I remember that I've seen identical results elsewhere, but LDAP was used, is there a way to achieve this with NIS/NFS setup? Thank you in advance,

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• Using a class within a class?

  - by Josh

  I built myself a MySQL class which I use in all my projects. I'm about to start a project that is heavily based on user accounts and I plan on building my own class for this aswell. The thing is, a lot of the methods in the user class will be MySQL queries and methods from the MySQL class. For example, I have a method in my user class to update someone's password: class user() { function updatePassword($usrName, $newPass) { $con = mysql_connect('db_host', 'db_user', 'db_pass'); $sql = "UPDATE users SET password = '$newPass' WHERE username = '$userName'"; $res = mysql_query($sql, $con); if($res) return true; mysql_close($con); } } (I kind of rushed this so excuse any syntax errors :) ) As you can see that would use MySQL to update a users password, but without using my MySQL class, is this correct? I see no way in which I can use my MySQL class within my users class without it seeming dirty. Do I just use it the normal way like $DB = new DB();? That would mean including my mysql.class.php somewhere too... I'm quite confused about this, so any help would be appreciated, thanks.

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• Two-way databinding of a custom templated control. Eval works, but not Bind.

  - by Jason

  I hate long code snippets and I'm sorry about this one, but it turns out that this asp.net stuff can't get much shorter and it's so specific that I haven't been able to generalize it without a full code listing. I just want simple two-way, declarative databinding to a single instance of an object. Not a list of objects of a type with a bunch of NotImplementedExceptions for Add, Delete, and Select, but just a single view-state persisted object. This is certainly something that can be done but I've struggled with an implementation for years. This newest, closest implementation was inspired by this article from 4-Guys-From-Rolla, http://msdn.microsoft.com/en-us/library/aa478964.aspx. Unfortunately, after implementing, I'm getting the following error and I don't know what I'm missing: System.InvalidOperationException: Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. If I don't use Bind(), and only use Eval() functionality, it works. In that way, the error is especially confusing. Here's the simplified codeset that still produces the error: using System.ComponentModel; namespace System.Web.UI.WebControls.Special { public class SampleFormData { public string SampleString = "Sample String Data"; public int SampleInt = -1; } [ToolboxItem(false)] public class SampleSpecificFormDataContainer : WebControl, INamingContainer { SampleSpecificEntryForm entryForm; internal SampleSpecificEntryForm EntryForm { get { return entryForm; } } [Bindable(true), Category("Data")] public string SampleString { get { return entryForm.FormData.SampleString; } set { entryForm.FormData.SampleString = value; } } [Bindable(true), Category("Data")] public int SampleInt { get { return entryForm.FormData.SampleInt; } set { entryForm.FormData.SampleInt = value; } } internal SampleSpecificFormDataContainer(SampleSpecificEntryForm entryForm) { this.entryForm = entryForm; } } public class SampleSpecificEntryForm : WebControl, INamingContainer { #region Template private IBindableTemplate formTemplate = null; [Browsable(false), DefaultValue(null), TemplateContainer(typeof(SampleSpecificFormDataContainer), ComponentModel.BindingDirection.TwoWay), PersistenceMode(PersistenceMode.InnerProperty)] public virtual IBindableTemplate FormTemplate { get { return formTemplate; } set { formTemplate = value; } } #endregion #region Viewstate SampleFormData FormDataVS { get { return (ViewState["FormData"] as SampleFormData) ?? new SampleFormData(); } set { ViewState["FormData"] = value; SaveViewState(); } } #endregion public override ControlCollection Controls { get { EnsureChildControls(); return base.Controls; } } private SampleSpecificFormDataContainer formDataContainer = null; [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] public SampleSpecificFormDataContainer FormDataContainer { get { EnsureChildControls(); return formDataContainer; } } [Bindable(true), Browsable(false)] public SampleFormData FormData { get { return FormDataVS; } set { FormDataVS = value; } } protected override void CreateChildControls() { if (!this.ChildControlsCreated) { Controls.Clear(); formDataContainer = new SampleSpecificFormDataContainer(this); Controls.Add(formDataContainer); FormTemplate.InstantiateIn(formDataContainer); this.ChildControlsCreated = true; } } public override void DataBind() { CreateChildControls(); base.DataBind(); } } } With an ASP.NET page the following: <%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeBehind="Default2.aspx.cs" Inherits="EntryFormTest._Default2" EnableEventValidation="false" %> <%@ Register Assembly="EntryForm" Namespace="System.Web.UI.WebControls.Special" TagPrefix="cc1" %> <asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"> </asp:Content> <asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> <h2> Welcome to ASP.NET! </h2> <cc1:SampleSpecificEntryForm ID="EntryForm1" runat="server"> <FormTemplate> <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("SampleString") %>'></asp:TextBox><br /> <h3>(<%# Container.SampleString %>)</h3><br /> <asp:Button ID="Button1" runat="server" Text="Button" /> </FormTemplate> </cc1:SampleSpecificEntryForm> </asp:Content> Default2.aspx.cs using System; namespace EntryFormTest { public partial class _Default2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { EntryForm1.DataBind(); } } } Thanks for any help!

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• Programming style question on how to code functions

  - by shawnjan

  Hey all! So, I was just coding a bit today, and I realized that I don't have much consistency when it comes to a coding style when programming functions. One of my main concerns is whether or not its proper to code it so that you check that the input of the user is valid OUTSIDE of the function, or just throw the values passed by the user into the function and check if the values are valid in there. Let me sketch an example: I have a function that lists hosts based on an environment, and I want to be able to split the environment into chunks of hosts. So an example of the usage is this: listhosts -e testenv -s 2 1 This will get all the hosts from the "testenv", split it up into two parts, and it is displaying part one. In my code, I have a function that you pass it in a list, and it returns a list of lists based on you parameters for splitting. BUT, before I pass it a list, I first verify the parameters in my MAIN during the getops process, so in the main I check to make sure there are no negatives passed by the user, I make sure the user didnt request to split into say, 4 parts, but asking to display part 5 (which would not be valid), etc. tl;dr: Would you check the validity of a users input the flow of you're MAIN class, or would you do a check in your function itself, and either return a valid response in the case of valid input, or return NULL in the case of invalid input? Obviously both methods work, I'm just interested to hear from experts as to which approach is better :) Thanks for any comments and suggestions you guys have!

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• logic before dispatcher + controller?

  - by Spoonface

  I believe for a typical MVC web application the router / dispatcher routine is used to decide which controller is loaded based primarily on the area requested in the url by the user. However, in addition to checking the url query string, I also like to use the dispatcher to check whether the user is currently logged in or not to decide which controller is loaded. For example if they are logged in and request the login page, the dispatcher would load their account instead. But is this a fairly non-standard design? Would it violate MVC in any way? I only ask as the examples I've read through this weekend have had no major calculations performed before the dispatcher routine, and commonly check whether the user is logged in or not per controller, and then redirect where necessary. But to me it seems odd to redirect a logged in user from the login area to account area if you could just load the account controller in the first place? I hope I've explained my consternation well enough, but could anyone offer some details on how they handle logged in users, and similar session data?

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• Concatenate, sort and swap array in Java

  - by sblck

  I am trying to concatenate two arrays into new array, sort in order, and swap two values of index. I'm kind of new to java and only use C before so having a hard time handling an Object. In main method it declares two object arrays IntVector vector = new IntVector(3); and IntVector vector2 = new IntVector(3); I can only do this if the types are int[], but I want to use as an object How should I code the concat, sort, and swap method? public class IntVector { private int[] items_; private int itemCount_; private IntVector(int[] data, int n) { items_ = data.clone(); itemCount_ = n; } public IntVector(int itemSize) { itemCount_ =0; if(itemSize<1) itemSize =10; items_ = new int[itemSize]; } public void push(int value) { if(itemCount_ + 1 >= items_.length) overflow(); items_[itemCount_++] = value; } public void log() { for (int i=0 ; i<itemCount_; ++i) { System.out.print(items_[i]); if(i<itemCount_ -1) System.out.println(); } } public void overflow() { int[] newItems = new int[items_.length * 2]; for(int i=0 ; i<itemCount_; ++i) { newItems[i] = items_[i]; } items_=newItems; } public int getValue(int index) { if(index < 0 || index >= itemCount_) { System.out.println("[error][IntVector][setValue] Incorrect index=" + index); return 0; } return items_[index]; } public void setValue(int index, int value) { if(index < 0 || index >= itemCount_) { System.out.println("[error][IntVector][setValue] Incorrect index=" + index); return ; } items_[index] = value; } public IntVector clone() { return new IntVector(items_, itemCount_); } public IntVector concat() { return null; } public IntVector sort() { return null; } public IntVector swap() { return null; } public static void main(String[] args) { IntVector vector = new IntVector(3); IntVector vector2 = new IntVector(3); vector.push(8); vector.push(200); vector.push(3); vector.push(41); IntVector cloneVector = vector.clone(); vector2.push(110); vector2.push(12); vector2.push(7); vector2.push(141); vector2.push(-32); IntVector concatResult = vector.concat(vector2); IntVector sortResult = concatResult.sort(); IntVector swapResult = sortResult.clone(); //swapResult.swap(1,5); System.out.print("vector : "); vector.log(); System.out.print("\n\ncloneVector : "); cloneVector.log(); System.out.print("\n\nvector2 : "); vector2.log(); System.out.print("\n\nconcatvector : "); concatResult.log(); System.out.print("vector : "); vector.log(); System.out.print("vector : "); vector.log(); } }

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• [MVC] logic before dispatcher + controller?

  - by Spoonface

  I believe for a typical MVC web application the router / dispatcher routine is used to decide which controller is loaded based primarily on the area requested in the url by the user. However, in addition to checking the url query string, I also like to use the dispatcher to check whether the user is currently logged in or not to decide which controller is loaded. For example if they are logged in and request the login page, the dispatcher would load their account instead. But is this a fairly non-standard design? Would it violate MVC in any way? I only ask as the examples I've read through this weekend have had no major calculations performed before the dispatcher routine, and commonly check whether the user is logged in or not per controller, and then redirect where necessary. But to me it seems odd to redirect a logged in user from the login area to account area if you could just load the account controller in the first place? I hope I've explained my consternation well enough, but could anyone offer some details on how they handle logged in users, and similar session data?

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• What is a good java data structure for storing nested items (like cities in states)?

  - by anotherAlan

  I'm just getting started in Java and am looking for advice on a good way to store nested sets of data. For example, I'm interested in storing city population data that can be accessed by looking up the city in a given state. (Note: eventually, other data will be stored with each city as well, this is just the first attempt at getting started.) The current approach I'm using is to have a StateList Object which contains a HashMap that stores State Objects via a string key (i.e. HashMap<String, State>). Each State Object contains its own HashMap of City Objects keyed off the city name (i.e. HashMap<String, City>). A cut down version of what I've come up with looks like this: // TestPopulation.java public class TestPopulation { public static void main(String [] args) { // build the stateList Object StateList sl = new StateList(); // get a test state State stateAl = sl.getState("AL"); // make sure it's there. if(stateAl != null) { // add a city stateAl.addCity("Abbeville"); // now grab the city City cityAbbevilleAl = stateAl.getCity("Abbeville"); cityAbbevilleAl.setPopulation(2987); System.out.print("The city has a pop of: "); System.out.println(Integer.toString(cityAbbevilleAl.getPopulation())); } // otherwise, print an error else { System.out.println("That was an invalid state"); } } } // StateList.java import java.util.*; public class StateList { // define hash map to hold the states private HashMap<String, State> theStates = new HashMap<String, State>(); // setup constructor that loads the states public StateList() { String[] stateCodes = {"AL","AK","AZ","AR","CA","CO"}; // etc... for (String s : stateCodes) { State newState = new State(s); theStates.put(s, newState); } } // define method for getting a state public State getState(String stateCode) { if(theStates.containsKey(stateCode)) { return theStates.get(stateCode); } else { return null; } } } // State.java import java.util.*; public class State { // Setup the state code String stateCode; // HashMap for cities HashMap<String, City> cities = new HashMap<String, City>(); // define the constructor public State(String newStateCode) { System.out.println("Creating State: " + newStateCode); stateCode = newStateCode; } // define the method for adding a city public void addCity(String newCityName) { City newCityObj = new City(newCityName); cities.put(newCityName, newCityObj); } // define the method for getting a city public City getCity(String cityName) { if(cities.containsKey(cityName)) { return cities.get(cityName); } else { return null; } } } // City.java public class City { // Define the instance vars String cityName; int cityPop; // setup the constructor public City(String newCityName) { cityName = newCityName; System.out.println("Created City: " + newCityName); } public void setPopulation(int newPop) { cityPop = newPop; } public int getPopulation() { return cityPop; } } This is working for me, but I'm wondering if there are gotchas that I haven't run into, or if there are alternate/better ways to do the same thing. (P.S. I know that I need to add some more error checking in, but right now, I'm focused on trying to figure out a good data structure.) (NOTE: Edited to change setPop() and getPop() to setPopulation() and getPopulation() respectively to avoid confucsion)

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• One email user keeps disconnecting from our exchange server

  - by Funky Si

  I have one user who keeps reporting that Outlook keeps disconnecting from our email server. All other users are fine. Our email server is running Exchange 2010 and the client is running Outlook 2003. The disconnection only lasts a moment. I have checked for logs on the client and Exchange server and can not see any reason for the disconnect, On the Client I get EventId 26 telling me Outlook has disconnected and reconnected but no reason why. Can anyone give me some suggestions of things to try and track down where the problem could be? --Update-- I have found the following log file C:\Program Files\Microsoft\Exchange Server\V14\Logging\RPC Client Access which suggests that it is a problem with RPC sessions. Excerpt is below 2013-01-31T15:21:24.015Z,6413,15,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,,0,00:00:00,"BS=Conn:24,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:$null/0,Policy:ClientThrottlingPolicy2,Norm[Resources:(Mdb)Mailbox Database 0765959540(Health:-1%,HistLoad:0),(Mdb)Public Folder Database 1945427388(Health:-1%,HistLoad:0),];GC:6/1/0;", 2013-01-31T15:21:24.015Z,6413,16,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,PublicLogoff,0,00:00:00,LogonId: 1, 2013-01-31T15:21:24.015Z,6413,16,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,,,00:00:00,"BS=Conn:24,HangingConn:0,AD:$null/$null/0%,CAS:$null/$null/2%,AB:$null/$null/0%,RPC:$null/$null/1%,FC:$null/0,Policy:ClientThrottlingPolicy2,Norm[Resources:(Mdb)Mailbox Database 0765959540(Health:-1%,HistLoad:0),(Mdb)Public Folder Database 1945427388(Health:-1%,HistLoad:0),];GC:6/1/0;", 2013-01-31T15:21:24.015Z,6417,5,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,OwnerLogoff,0,00:00:00,LogonId: 0, 2013-01-31T15:21:24.015Z,6417,5,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,,0x6BA (rpc::Exception),00:02:54.7668000,Budget Highs [AD = 0][CAS = 3][RPC = 1] Session Throttled Count = 0; SessionDropped,"RpcEndPoint: [ServerUnavailableException] Connection must be re-established - [SessionDeadException] Connection doesn't have any open logons, but has client activity. This may be masking synchronization stalls. Dropping a connection." 2013-01-31T15:21:24.015Z,6420,7,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,DelegateLogoff,0,00:00:00,LogonId: 0, 2013-01-31T15:21:24.031Z,6420,7,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,,,00:00:00.0156000,Budget Highs [AD = 0][CAS = 3][RPC = 1] Session Throttled Count = 0, 2013-01-31T15:21:24.031Z,6420,7,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,Disconnect,0,00:02:54.2364000,, 2013-01-31T15:21:24.031Z,6419,5,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,OwnerLogoff,0,00:00:00,LogonId: 0, 2013-01-31T15:21:24.031Z,6419,5,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,,,00:00:00,Budget Highs [AD = 0][CAS = 3][RPC = 1] Session Throttled Count = 0, 2013-01-31T15:21:24.031Z,6419,5,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,Disconnect,0,00:02:54.4392000,, 2013-01-31T15:21:24.031Z,6416,7,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,DelegateLogoff,0,00:00:00,LogonId: 0, 2013-01-31T15:21:24.031Z,6416,7,/o=EUROSAFEUK/ou=first administrative group/cn=Recipients/cn=andy,,OUTLOOK.EXE,11.0.8303.0,Classic,,,ncacn_ip_tcp,,,,00:00:00,Budget Highs [AD = 0][CAS = 3][RPC = 1] Session Throttled Count = 0, Can anyone help point me in the right direction for a solution?

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• HttpContext.Current.User.Identity.Name is Empty

  - by Jordy

  I have a silverlight application (using MVC) and when i'm building in visual studio, using Visual Studio Development center, there's no problem, the HttpContext.Current.User.Identity.Name has a Value But when i'm using the same project with IIS 7.5 (i'm using Windows 7), HttpContext.Current.User.Identity.Name stays empty Anyone who can help? Or knows where i can find the settings from the visual studio Development center, so i can check what's wrong in IIS?

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