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• Alternative to google map api, so that I can use it on a HTTPS/SSL encrypted website.

  - by Zeeshan Rang

  I have a question regarding map api. I was using the the google map api in my website before. But since I have encryption the site using HTTPS/SSL support, the google map api stopped working. I checked online, and realised that google has a Premier account only that would allow me to use HTTPS supported maps api and it cost $10,000 per year. I do not this kind of money with me. So, can you give any other alternative to have a map api on my website. Anything that could give me driving directions would be fine. Regards Zeeshan

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• Help with calling a secure (SSL) webservice in Android.

  - by mmattax

  I'm new to Android and am struggling to make a call to an SSL web service for an Android Application. My code is as follows: Log.v("fs", "Making HTTP call..."); HttpClient http = new DefaultHttpClient(); HttpGet request = new HttpGet("https://example.com/api"); try { String response = http.execute(request, new BasicResponseHandler()); Log.v("fs", response); } catch (Exception e) { Log.v("fs", e.toString()); } The Output is: Making HTTP call... javax.net.SSLPeerUnverifiedException: No peer certificate Any suggestions to make this work would be great. EDIT I should note that this is a valid cert. It is not self-signed.

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• apache2 mysql authentication module and SHA1 encryption

  - by Luca Rossi

  I found myself in a setup on where I need to enable some authentication method using mysql. I already have an user scheme. That user scheme is working like a charm with MD5 password and CRYPT, but when I turn to SHA1sum it says: [Fri Oct 26 00:03:20 2012] [error] Unsupported encryption type: Sha1sum No useful debug informations on log files. This is my setup and some info: debian6 apache and ssl installed packages: root@sistemichiocciola:/etc/apache2/mods-available# dpkg --list | grep apache ii apache2 2.2.16-6+squeeze8 Apache HTTP Server metapackage ii apache2-mpm-prefork 2.2.16-6+squeeze8 Apache HTTP Server - traditional non-threaded model ii apache2-utils 2.2.16-6+squeeze8 utility programs for webservers ii apache2.2-bin 2.2.16-6+squeeze8 Apache HTTP Server common binary files ii apache2.2-common 2.2.16-6+squeeze8 Apache HTTP Server common files ii libapache2-mod-auth-mysql 4.3.9-13+b1 Apache 2 module for MySQL authentication ii libapache2-mod-php5 5.3.3-7+squeeze14 server-side, HTML-embedded scripting language (Apache 2 module) root@sistemichiocciola:/etc/apache2/sites-enabled# dpkg --list | grep ssl ii libssl-dev 0.9.8o-4squeeze13 SSL development libraries, header files and documentation ii libssl0.9.8 0.9.8o-4squeeze13 SSL shared libraries ii openssl 0.9.8o-4squeeze13 Secure Socket Layer (SSL) binary and related cryptographic tools ii openssl-blacklist 0.5-2 list of blacklisted OpenSSL RSA keys ii ssl-cert 1.0.28 simple debconf wrapper for OpenSSL my vhost setup: AuthMySQL On Auth_MySQL_Host localhost Auth_MySQL_User XXX Auth_MySQL_Password YYY Auth_MySQL_DB users AuthName "Sistemi Chiocciola Sezione Informatica" AuthType Basic # require valid-user require group informatica Auth_MySQL_Encryption_Types Crypt Sha1sum AuthBasicAuthoritative Off AuthUserFile /dev/null Auth_MySQL_Password_Table users Auth_MYSQL_username_field email Auth_MYSQL_password_field password AuthMySQL_Empty_Passwords Off AuthMySQL_Group_Table http_groups Auth_MySQL_Group_Field user_group Have I missed a package/configuration or something?

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• Azure's Ubuntu 12.0.4 fails to install PHP5

  - by Alex Kennberg

  Similar to this article from Azure themselves: http://www.windowsazure.com/en-us/manage/linux/common-tasks/install-lamp-stack/ I am trying to install PHP5 on Ubuntu 12.0.4 virtual machine. However, it fails installing the ssl-cert. $ sudo apt-get install php5 Reading package lists... Done Building dependency tree Reading state information... Done php5 is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 49 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up ssl-cert (1.0.28) ... Could not create certificate. Openssl output was: Generating a 2048 bit RSA private key ............................+++ ...................................................................................................................+++ writing new private key to '/etc/ssl/private/ssl-cert-snakeoil.key' ----- problems making Certificate Request 140320238503584:error:0D07A097:asn1 encoding routines:ASN1_mbstring_ncopy:string too long:a_mbstr.c:154:maxsize=64 dpkg: error processing ssl-cert (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: ssl-cert E: Sub-process /usr/bin/dpkg returned an error code (1) Any tips appreciated.

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• Postfix not working

  - by user1488723

  A while ago I installed the postfix mail server on my ubuntu 10.04 VPS. At the time it was working good but now it's just stopped working. I was trying to enable SASL authentification and somewhere it must have went really wrong. I've studied the postfix main.cf and done everything in an orderly fashion to ensure that it is nothing wrong. I also have Dovecot installed and configured dovecot.conf to run with Postfix. If I try to do telnet localhost 25 while logged in on the server I just get: Connection closed by foreign host. If I try to do telnet mail.example.com 25 "from the outside" I get: telnet: Unable to connect to remote host: No route to host And when I check the server log after the failed attempts I see this: Jun 28 15:49:31 msv postfix/smtpd[11839]: initializing the server-side TLS engine Jun 28 15:49:31 msv postfix/smtpd[11839]: connect from localhost.localdomain[127.0.0.1] Jun 28 15:49:31 msv postfix/smtpd[11839]: warning: SASL: Connect to /var/spool/postfix/private/auth failed: Connection refused Jun 28 15:49:31 msv postfix/smtpd[11839]: fatal: no SASL authentication mechanisms Jun 28 15:49:32 msv postfix/master[11598]: warning: process /usr/lib/postfix/smtpd pid 11839 exit status 1 Jun 28 15:49:32 msv postfix/master[11598]: warning: /usr/lib/postfix/smtpd: bad command startup -- throttling main.cf file looks like this: smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no append_dot_mydomain = no delay_warning_time = 4h myhostname = mail.example.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases mydomain = example.com myorigin = $mydomain mydestination = $mydomain relayhost = mynetworks = 127.0.0.1 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all smtpd_use_tls = yes smtpd_tls_loglevel = 2 smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem smtpd_sasl_auth_enable = yes smtpd_client_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks smtpd_recipient_restrictions = permit_sasl_authenticated, reject_unauth_destination broken_sasl_auth_clients = yes smtpd_sasl_type = dovecot smtpd_sasl_path = /var/spool/postfix/private/auth smtpd_sasl_security_options = noanonymous Dovecot.conf file looks like this: protocols = imap imaps disable_plaintext_auth = no log_timestamp = "%b %d %H:%M:%S " ssl = yes ssl_cert_file = /etc/postfix/ssl/smtpd.crt ssl_key_file = /etc/postfix/ssl/smtpd.key mail_location = maildir:~/mail mail_access_groups = mail auth_username_chars = abcdefghijklmnopqrstuvwxyz protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep } auth default { mechanisms = plain login passdb pam { } userdb passwd { } socket listen { client { path = /var/spool/postfix/private/auth user = postfix group = postfix mode = 0660 } } }

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• Sending emails with Thunderbird + Postfix + Zarafa does not work

  - by Sven Jung

  I installed zarafa on my vserver and use as MTA postfix. The webaccess works fine, I can revceive and send emails, also receiving mails with thunderbird (IMAP ssl/tls) works. But there is a problem, sending emails with thunderbird. I established an account in thunderbird with imap ssl/tls connection which works finde, and a starttls smtp connection on port 25 for the outgoing mail server. If I try to send an email with thunderbird I get an error: 5.7.1 Relay access denied this is my mail.log Sep 7 16:10:07 postfix/smtpd[6153]: connect from p4FE06C0A.dip.t-dialin.net[79.224.110.10] Sep 7 16:10:08 postfix/smtpd[6153]: NOQUEUE: reject: RCPT from p4FE06C0A.dip.t-dialin.net[79.224.110.10]: 554 5.7.1 <[email protected]>: Relay access denie$ Sep 7 16:10:10 postfix/smtpd[6153]: disconnect from p4FE06C0A.dip.t-dialin.net[79.224.110.10] and this my /etc/postfix/main.conf # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache virtual_mailbox_domains = firstdomain.de, seconddomain.de virtual_mailbox_maps = hash:/etc/postfix/virtual virtual_alias_maps = hash:/etc/postfix/virtual virtual_transport = lmtp:127.0.0.1:2003 myhostname = mail.firstdomain.de alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = ipv4 I don't know what to do, because actually sending mails to internal and external addresses works with the webaccess. Perhaps somebody can help me?

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• Dovecot authentification not working

  - by user1488723

  I run a Ubuntu 10.04 VPS with Postfix and Dovecot installed. For a while I had problems with the mailserver itself (Postfix) but now it runs ok. I can telnet into it from localhost (telnet localhost 25 while logged in) and Im blocked if I try to do it from the outside (telnet mail.example.org 25). This is as it should be according to my main.cf However when I try to log in using Dovecot (openssl s_client -connect mail.example.com:993) I'm allowed in but denied when trying to identify myself as a user: Excerpt from Dovecot log in: Key-Arg : None Start Time: 1341074622 Timeout : 300 (sec) Verify return code: 18 (self signed certificate) OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE AUTH=PLAIN AUTH=LOGIN] Dovecot ready. When I continue and try to log in to a specific user with the command: A001 login user password I get: A001 NO [AUTHENTICATIONFAILED] Authentication failed. I've reset the password to ensure it is correct and I know the user (user) exists on the system. When I do /etc/init.d/dovecot reload I get: /etc/init.d/dovecot: 29: maildir:~/Maildir: not found * Reloading IMAP/POP3 mail server dovecot [ OK ] Could it be that the mailboxes isn't found? Postfix main.cf: home_mailbox = Maildir/ mailbox_command = recipient_delimiter = + inet_interfaces = all smtpd_use_tls = yes smtpd_tls_auth_only = no smtpd_tls_loglevel = 1 smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem smtpd_sasl_auth_enable = yes smtpd_client_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination broken_sasl_auth_clients = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $mydomain Dovecot.conf: protocols = imap imaps disable_plaintext_auth = no log_timestamp = "%b %d %H:%M:%S " ssl = yes ssl_cert_file = /etc/postfix/ssl/smtpd.crt ssl_key_file = /etc/postfix/ssl/smtpd.key mail_location = maildir:~/Maildir auth_verbose = yes mail_access_groups = mail auth_username_chars = abcdefghijklmnopqrstuvwxyz0123456789 protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep } auth default { mechanisms = plain login passdb pam { } userdb passwd { } socket listen { client { path = /var/spool/postfix/private/auth user = postfix group = postfix mode = 0660 } } }

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• Solving the EXC_BAD_ACCESS in WhatATool Part 2

  - by Allen

  #import <Cocoa/Cocoa.h> @interface PolygonShape : NSObject { int numberOfSides, maximumNumberOfSides, minimumNumberOfSides; } @property (readwrite) int numberOfSides, maximumNumberOfSides, minimumNumberOfSides; @property (readonly) float angleInDegrees, angleInRadians; @property (readonly) NSString * name; @property (readonly) NSString * description; -(id) init; -(void) setNumberOfSides:(int)sides; -(void) setMinimumNumberOfSides:(int)min; -(void) setMaximumNumberOfSides:(int)max; -(float) angleInDegrees; -(float) angleInRadians; -(NSString *) name; -(id) initWithNumberOfSides:(int) sides minimumNumberOfSides:(int) min maximumNumberOfSides:(int) max; -(NSString *) description; -(void) dealloc; @end #import "PolygonShape.h" @implementation PolygonShape -(id) init { return [self initWithNumberOfSides:4 minimumNumberOfSides:3 maximumNumberOfSides:5]; } @synthesize numberOfSides, minimumNumberOfSides, maximumNumberOfSides, angleInRadians; -(void) setNumberOfSides:(int)sides { numberOfSides = sides; NSLog(@"The number of sides is off limit so the number of sides is %@.",sides); } -(void)setMaximumNumberOfSides:(int)max { if (maximumNumberOfSides <= 12) { maximumNumberOfSides = max; } } -(void)setMinimumNumberOfSides: (int)min { if (minimumNumberOfSides > 2) { minimumNumberOfSides = min; } } - (id)initWithNumberOfSides:(int)sides minimumNumberOfSides:(int)min maximumNumberOfSides:(int)max { if(self=[super init]) { [self setNumberOfSides:(int)sides]; [self setMaximumNumberOfSides:(int)max]; [self setMinimumNumberOfSides: (int)min]; } return self; } -(float) angleInDegrees { float anglesInDegrees = (180 * (numberOfSides - 2) / numberOfSides); return anglesInDegrees; } -(float)angleInRadiants { float anglesInRadiants = ((180 * (numberOfSides - 2) / numberOfSides) * (180 / M_PI)); return anglesInRadiants; } -(NSString *)name { NSString * output; switch (numberOfSides) { case 3: output = @"Triangle"; break; case 4: output = @"Square"; break; case 5: output = @"Pentagon"; break; case 6: output = @"Hexagon"; break; case 7: output = @"Heptagon"; break; case 8: output = @"Octagon"; break; case 9: output = @"Nonagon"; break; case 10: output = @"Decagon"; break; case 11: output = @"Hendecagon"; break; case 12: output = @"Dodecabgon"; break; default: output = @"Invalid number of sides: %i is greater than maximum of five allowed."; } return output; } -(NSString *)description { NSString * output; NSLog(@"Hello I am a %i-sided polygon (aka a %@) with angles of %f degrees (%f radians).", numberOfSides, output, [self angleInDegrees], [self angleInRadiants]); return [self description]; } -(void)dealloc { [super dealloc]; } @end #import <Foundation/Foundation.h> #import "PolygonShape.h" void PrintPathInfo() { NSLog(@"Section 1"); NSLog(@"--------------------"); NSString *path = [@"~" stringByExpandingTildeInPath]; NSLog(@"My home folder is at '%@'.", path); NSArray *pathComponent = [path pathComponents]; for (path in pathComponent) { NSLog(@"%@",path); } NSLog(@"--------------------"); NSLog(@"\n"); } void PrintProcessInfo() { NSLog(@"Section 2"); NSLog(@"--------------------"); NSString * processName = [[NSProcessInfo processInfo] processName]; int processIdentifier = [[NSProcessInfo processInfo] processIdentifier]; NSLog(@"Process Name: '%@', Process ID: '%i'", processName, processIdentifier); NSLog(@"--------------------"); NSLog(@"\n"); } void PrintBookmarkInfo() { NSLog(@"Section 3"); NSLog(@"--------------------"); NSArray * keys = [NSArray arrayWithObjects: @"Stanford University", @"Apple", @"CS193P", @"Stanford on iTunes U", @"Stanford Mall", nil]; NSArray * objects = [NSArray arrayWithObjects: [NSURL URLWithString: @"http://www.stanford.edu"], @"http://www.apple.com", @"http://cs193p.stanford.edu", @"http://itunes.stanford.edu", @"http://stanfordshop.com",nil]; NSMutableDictionary * dictionary = [NSMutableDictionary dictionaryWithObjects:objects forKeys:keys]; NSEnumerator * enumerator = [keys objectEnumerator]; for (id keys in dictionary) { NSLog(@"key: '%@', value: '%@'", keys, [dictionary objectForKey:keys]); } NSLog(@" "); NSLog(@"These are the ones that has the prefix 'Stanford'."); NSLog(@" "); id object; while (object = [enumerator nextObject]) { if ([object hasPrefix: @"Stanford"]) { NSLog(@"key: '%@', value: '%@'", object, [dictionary objectForKey:object]); } } NSLog(@"--------------------"); NSLog(@"\n"); } void PrintIntrospectionInfo() { NSLog(@"Section 4"); NSLog(@"--------------------"); SEL lowercase = @selector (lowercaseString); NSMutableArray * array = [NSMutableArray array]; [array addObject: [NSString stringWithString: @"Here is a string"]]; [array addObject: [NSDictionary dictionary]]; [array addObject: [NSURL URLWithString: @"http://www.stanford.edu"]]; [array addObject: [[NSProcessInfo processInfo]processName]]; for (id keys in array) { NSLog(@"\n"); NSLog(@"Class Name: %@", [keys className]); NSLog(@"Is Member of NSString: %@", [keys isMemberOfClass:[NSString class]]?@"Yes":@"No"); NSLog(@"Is Kind of NSString: %@", [keys isKindOfClass:[NSString class]]?@"Yes":@"No"); if ([keys respondsToSelector: lowercase]==YES) { NSLog(@"Responds to lowercaseString: %@",[keys respondsToSelector: lowercase]?@"Yes":@"No"); NSLog(@"lowercaseString is: %@", [keys performSelector: lowercase]); } else { NSLog(@"Responds to lowercaseString: %@",[keys respondsToSelector: lowercase]?@"Yes":@"No" ); } } NSLog(@"--------------------"); } void PrintPolygonInfo() { NSMutableArray * array = [NSMutableArray array]; PolygonShape * polygon1 = [[PolygonShape alloc]initWithNumberOfSides:4 minimumNumberOfSides:3 maximumNumberOfSides:7]; [array addObject:polygon1]; [array description]; PolygonShape * polygon2 = [[PolygonShape alloc]initWithNumberOfSides:6 minimumNumberOfSides:5 maximumNumberOfSides:9]; [array addObject:polygon2]; [array description]; PolygonShape * polygon3 = [[PolygonShape alloc]initWithNumberOfSides:12 minimumNumberOfSides:9 maximumNumberOfSides:12]; [array addObject:polygon3]; [array description]; [array release]; [polygon1 release]; [polygon2 release]; [polygon3 release]; } int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; PrintPathInfo(); PrintProcessInfo(); PrintBookmarkInfo(); PrintIntrospectionInfo(); PrintPolygonInfo(); [pool release]; return 0; } //The result was "EXC_BAD_ACCESS", but I couldn't figure out how to resolve this problem.

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• Can one config LDAP to accept auth from ssh-agent instead of from Kerberos?

  - by Alex North-Keys

  [This question is not about getting your LDAP password to authenticate you for SSH logins. We have that working just fine, thank you :-) ] Let's suppose you're on a Linux network (Ubuntu 11.10, slapd 2.4.23), and you need to write a set of utilities that will use ldapmodify, ldapadd, ldapdelete, and so on. You don't have Kerberos, and don't want to deal with its timeouts (most users don't know how to get around this), quirks, etc. This resolves the question to one of where else to get credentials to feed to LDAP, probably through GSSAPI - which technically doesn't require Kerberos despite its dominance there - or something like it. However, nearly everyone seems to have an SSH agent program, complete with its key cache. I'd really like an ssh-add to be sufficient to allow passwordless LDAP command use. Does anyone know of a project working on using the SSH agent as the source of authentication to LDAP? It might be through an ssh-aware GSSAPI layer, or some other trick I haven't thought of. But it would be wonderful for making LDAP effortless. Assuming I haven't just utterly missed a way to use ldapmodify and kin without having to type my LDAP passwords - using -x is NOT acceptable. At my site, the LDAP server only accepts ldaps connections, and requires authentication for modifying operations. Those are requirements, of course. Any ideas would be greatly appreciated. :-)

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• Can zlib.crc32 or zlib.adler32 be safely used to mask primary keys in URLs?

  - by David Eyk

  In Django Design Patterns, the author recommends using zlib.crc32 to mask primary keys in URLs. After some quick testing, I noticed that crc32 produces negative integers about half the time, which seems undesirable for use in a URL. zlib.adler32 does not appear to produce negatives, but is described as "weaker" than CRC. Is this method (either CRC or Adler-32) safe for usage in a URL as an alternate to a primary key? (i.e. is it collision-safe?) Is the "weaker" Adler-32 a satisfactory alternative for this task? How the heck do you reverse this?! That is, how do you determine the original primary key from the checksum?

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• How to map hash keys to methods for an encapsulated Ruby class (tableless model)?

  - by user502052

  I am using Ruby on Rails 3 and I am tryng to map a hash (key, value pairs) to an encapsulated Ruby class (tableless model) making the hash key as a class method that returns the value. In the model file I have class Users::Account #< ActiveRecord::Base def initialize(attributes = {}) @id = attributes[:id] @firstname = attributes[:firstname] @lastname = attributes[:lastname] end end def self.to_model(account) JSON.parse(account) end My hash is hash = {\"id\":2,\"firstname\":\"Name_test\",\"lastname\":\"Surname_test\"} I can make account = Users::Account.to_model(hash) that returns (debugging) --- id: 2 firstname: Name_test lastname: Surname_test That works, but if I do account.id I get this error NoMethodError in Users/accountsController#new undefined method `id' for #<Hash:0x00000104cda410> I think because <Hash:0x00000104cda410> is an hash (!) and not the class itself. Also I think that doing account = Users::Account.to_model(hash) is not the right approach. What is wrong? How can I "map" those hash keys to class methods?

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• Are keys and values of %INC platform-dependent or not?

  - by codeholic

  I'd like to get the full filename of an included module. Consider this code: package MyTest; my $path = join '/', split /::/, __PACKAGE__; $path .= ".pm"; print "$INC{$path}\n"; 1; $ perl -Ipath/to/module -MMyTest -e0 path/to/module/MyTest.pm Will it work on all platforms? perlvar The hash %INC contains entries for each filename included via the do, require, or useoperators. The key is the filename you specified (with module names converted to pathnames), and the value is the location of the file found. Are these keys platform-dependent or not? Should I use File::Spec or what? At least ActivePerl on win32 uses / instead of \. Update: What about %INC values? Are they platform-dependent?

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• NSMutableDictionary is adding quotes to keys and values - why?

  - by TimD

  I'm trying to add some additional key/value pairs to an NSMutableDictionary, using: Tag *tag1 = [results1 objectAtIndex:0]; [resultsDict setObject:[tag1 retrieveTextUpToDepth:1] forKey:@"image_url"]; Tag *tag2 = [results2 objectAtIndex:0]; [resultsDict setValue:[tag2 retrieveTextUpToDepth:1] forKey:@"majority"]; This adds the k/v pairs with no problem, except when I come to retrieve them, some of the values have been wrapped with double quotes: po extendedDataDictionary: "image_url" = "/images/mpsL/11727.jpeg"; majority = 3460; Both keys and values are NSStrings, with no quotes - so I'm stumped as to where they're appearing from. Is there any way of preventing this? Or am I going to have to live with it and try to strip off the quotes once I've retrieved the value? Thanks...

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• Selecting keys based on metadata, possible with Amazon S3?

  - by nbv4

  I'm sending files to my S3 bucket that are basically gzipped database dumps. They keys are a human readable date ("2010-05-04.dump"), and along with that, I'm setting a metadata field to the UNIX time of the dump. I want to write a script that retrieve the latest dump from the bucket. That is to say I want the the key with the largest unix time metadata value. Is this possible with Amazon S3, or is this not how S3 is meant to work? I'm using both the command line tool aws, and the python library boto

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• What Windows message is fired for mouse-up with modifier keys?

  - by Greg

  My WndProc isn't seeing mouse-up notifications when I click with a modifier key (shift or control) pressed. I see them without the modifier key, and I see mouse-down notifications with the modifier keys. I'm using the Windows Forms NativeWindow wrapper to get Windows messages from the WndProc() method. I've tried tracking the notifications I do get, and I the only clue I see is WM_CAPTURECHANGED. I've tried calling SetCapture when I receive the WM_LBUTTONDOWN message, but it doesn't help. Without modifier (skipping paint, timer and NCHITTEST messages): WM_LBUTTONDOWN WM_SETCURSOR WM_MOUSEMOVE WM_SETCURSOR WM_LBUTTONUP With modifier (skipping paint, timer and NCHITTEST messages): WM_KEYDOWN WM_PARENTNOTIFY WM_MOUSEACTIVATE WM_MOUSEACTIVATE WM_SETCURSOR WM_LBUTTONDOWN WM_SETCURSOR (repeats) WM_KEYDOWN (repeats) WM_KEYUP If I hold the mouse button down for a long time, I can usually get a WM_LBUTTONUP notification, but it should be possible to make it more responsive.. What am I missing? Thanks.

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• How fast are App Engine db.get(keys) and A.all(keys_only=True).filter('b =', b).fetch(1000)?

  - by Liron Shapira

  A db.get() of 50 keys seems to take me 5-6 seconds. Is that normal? What is the time a function of? I also did a A.all(keys_only=True).filter('b =', b).fetch(1000) where A.b is a ReferenceProperty. I did 50 such round trips to the datastore, with different values of b, and the total time was only 3-4 seconds. How is this possible? db.get() is done in parallel, with only one trip to the datastore, and I would think that looking up an entity by key is a faster operation than fetch.

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• PHP: How to overwrite values in one array with values from another without adding new keys to the ar

  - by Svish

  I have an array with default settings, and one array with user-specified settings. I want to merge these two arrays so that the default settings gets overwritten with the user-specified ones. I have tried to use array_merge, which does the overwriting like I want, but it also adds new settings if the user has specified settings that doesn't exist in the default ones. Is there a better function I can use for this than array_merge? Or is there a function I can use to filter the user-specified array so that it only contains keys that also exist in the default settings array? (PHP version 5.3.0) Example of what I want $default = array('a' => 1, 'b' => 2); $user = array('b' => 3, 'c' => 4); // Somehow merge $user into $default so we end up with this: Array ( [a] => 1 [b] => 3 )

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• Composite primary keys in N-M relation or not?

  - by BerggreenDK

  Lets say we have 3 tables (actually I have 2 at the moment, but this example might illustrate the thought better): [Person] ID: int, primary key Name: nvarchar(xx) [Group] ID: int, primary key Name: nvarchar(xx) [Role] ID: int, primary key Name: nvarchar(xx) [PersonGroupRole] Person_ID: int, PRIMARY COMPOSITE OR NOT? Group_ID: int, PRIMARY COMPOSITE OR NOT? Role_ID: int, PRIMARY COMPOSITE OR NOT? Should any of the 3 ID's in the relation PersonGroupRole be marked as PRIMARY key or should they all 3 be combined into one composite?? whats the real benefit of doing it or not? I can join anyways as far as I know, so Person JOIN PersonGroupRole JOIN Group gives me which persons are in which Groups etc. I will be using LINQ/C#/.NET on top of SQL-express and SQL-server, so if there is any reasons regarding language/SQL that might make the choice more clear, thats the platform I ask about. Looking forward to see what answers pops up, as I have thought of these primary keys/indexes many times when making combined ones.

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• How can I compare rows from 2 tables that have composite primary keys?

  - by cdeszaq

  Here's the scenario: I have 2 tables with data, one is the 2009 version and the other is the 2010 version. The primary key for each of the tables is a composite key. I know there is a different number of rows in each one and I need to find out the differences. Typically, in the "normal" primary key set-up, I would just look for primary key values NOT IN the list of primary keys from the other table. But I don't know how to do this with a composite primary key (or even if it's possible). So, how can I compare the rows from these two tables?

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• How to $.extend 2 objects by adding numerical values together from keys with the same name?

  - by muudless

  I currently have 2 obj and using the jquery extend function, however it's overriding value from keys with the same name. How can I add the values together instead? obj1 = {"orange":2,"apple":1, "grape":1} obj2 = {"orange":5,"apple":1, "banana":1} mergedObj = $.extend({}, obj1, obj2); var printObj = typeof JSON != "undefined" ? JSON.stringify : function(obj) { var arr = []; $.each(obj, function(key, val) { var next = key + ": "; next += $.isPlainObject(val) ? printObj(val) : val; arr.push( next ); }); return "{ " + arr.join(", ") + " }"; }; console.log('all together: '+printObj(mergedObj) ); And I get obj1 = {"orange":5,"apple":1, "grape":1, "banana":1} What I need is obj1 = {"orange":7,"apple":2, "grape":1, "banana":1}

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• Puppet master fails to run under nginx+passenger configuration as rack app, works when run as system service

  - by Anadi Misra

  I get the error [anadi@bangda ~]# tail -f /var/log/nginx/error.log [ pid=19741 thr=23597654217140 file=utils.rb:176 time=2012-09-17 12:52:43.307 ]: *** Exception LoadError in PhusionPassenger::Rack::ApplicationSpawner (no such file to load -- puppet/application/master) (process 19741, thread #<Thread:0x2aec83982368>): from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from config.ru:13 from /usr/local/lib/ruby/gems/1.8/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval' from /usr/local/lib/ruby/gems/1.8/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize' from config.ru:1:in `new' from config.ru:1 when I start nginx server with passenger module configured, puppet master configured to run through rack. here is the config.ru [anadi@bangda ~]# cat /etc/puppet/rack/config.ru # a config.ru, for use with every rack-compatible webserver. # SSL needs to be handled outside this, though. # if puppet is not in your RUBYLIB: #$:.unshift('/usr/share/puppet/lib') $0 = "master" # if you want debugging: # ARGV << "--debug" ARGV << "--rack" require 'puppet/application/master' # we're usually running inside a Rack::Builder.new {} block, # therefore we need to call run *here*. run Puppet::Application[:master].run and the nginx configuration for puppet master is as follows [anadi@bangda ~]# cat /etc/nginx/conf.d/puppet-master.conf server { listen 8140 ssl; server_name bangda.mycompany.com; passenger_enabled on; passenger_set_cgi_param HTTP_X_CLIENT_DN $ssl_client_s_dn; passenger_set_cgi_param HTTP_X_CLIENT_VERIFY $ssl_client_verify; access_log /var/log/nginx/puppet/master.access.log; error_log /var/log/nginx/puppet/master.error.log; root /etc/puppet/rack/public; ssl_certificate /var/lib/puppet/ssl/certs/bangda.mycompany.com.pem; ssl_certificate_key /var/lib/puppet/ssl/private_keys/bangda.mycompany.com.pem; ssl_crl /var/lib/puppet/ssl/ca/ca_crl.pem; ssl_client_certificate /var/lib/puppet/ssl/certs/ca.pem; ssl_ciphers SSLv2:-LOW:-EXPORT:RC4+RSA; ssl_prefer_server_ciphers on; ssl_verify_client optional; ssl_verify_depth 1; ssl_session_cache shared:SSL:128m; ssl_session_timeout 5m; } however when I run puppet through the ususal puppetmasterd daemon it works perfect with no errors. I can see somehow the nginx+passenger+rack setup fails to initialize while the same works when running the natvie puppetmaster daemon. Any configuration that I am missing?

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• Postfix: Relay access denied

  - by Joseph Silvashy

  When I telnet to my server thats running postfix and try to send an email: MAIL FROM:<[email protected]> #=> 250 2.1.0 Ok RCPT TO:<[email protected]> #=> 554 5.7.1 <[email protected]>: Relay access denied I couldn't really find the answer on the site or by looking at other users question/answers, I'm not sure where to start. Ideas? Update So basically looking at the docs: http://www.postfix.org/SMTPD_ACCESS_README.html (section: Getting selective with SMTP access restriction lists), I don't seem to have any of those directives in etc/postfix/main.cf like smtpd_client_restrictions = permit_mynetworks, reject or any of the other ones, so I'm quite confused. But really I'm going to have a rails app connect to the server and send the emails, so I'm not sure how to handle it. Here is what my config file looks like: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = rerecipe-utils alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = $myhostname, localhost.$mydomain, localhost, mail.rerecipe.com, rerecipe.com relayhost = mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = all mynetworks = 127.0.0.0/8 204.232.207.0/24 10.177.64.0/19 [::1]/128 [fe80::%eth0]/64 [fe80::%eth1]/64 Something to note is that relayhost is blank, this is the default configuration file that was created when I installed Postfix, when testing to connect with openssl I get this: ~% openssl s_client -connect mail.myhostname.com:25 -starttls smtp CONNECTED(00000003) depth=0 /CN=myhostname verify error:num=18:self signed certificate verify return:1 depth=0 /CN=myhostname verify return:1 --- Certificate chain 0 s:/CN=myhostname i:/CN=myhostname --- Server certificate -----BEGIN CERTIFICATE----- MIIBqTCCARICCQDDxVr+420qvjANBgkqhkiG9w0BAQUFADAZMRcwFQYDVQQDEw5y ZXJlY2lwZS11dGlsczAeFw0xMDEwMTMwNjU1MTVaFw0yMDEwMTAwNjU1MTVaMBkx FzAVBgNVBAMTDnJlcmVjaXBlLXV0aWxzMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB iQKBgQDODh2w4A1k0qiPNPhkrPj8sfkxpKPTk28AuZhgOEBYBLeHacTKNH0jXxPv P3TyhINijvvdDPzyuPJoTTliR2EHR/nL4DLhr5FzhV+PB4PsIFUER7arx+1sMjz6 5l/Ubu1ppMzW9U0IFNbaPm2AiiGBQRCQN8L0bLUjzVzwoSRMOQIDAQABMA0GCSqG SIb3DQEBBQUAA4GBALi2vvk9TGKJubXYJbU0PKmVmsfzFK35yLqr0keiDBhK2Leg 274sWxEH3ds8mUaRftuFlXb7RYAGNlVyTuMTY3CEcnqIsH7F2McCUTpjMzu/o1mZ O/B21CelKetBd1u79Gkrv2vWyN7Csft6uTx5NIGG2+pGi3r0gX2r0Hbu2K94 -----END CERTIFICATE----- subject=/CN=myhostname issuer=/CN=myhostname --- No client certificate CA names sent --- SSL handshake has read 1203 bytes and written 360 bytes --- New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA Server public key is 1024 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : TLSv1 Cipher : DHE-RSA-AES256-SHA Session-ID: 1AA4B8BFAAA85DA9ED4755194C50311670E57C35B8C51F9C2749936DA11918E4 Session-ID-ctx: Master-Key: 9B432F1DE9F3580DCC6208C76F96631DC5A4BC517BDBADD5F514414DCF34AC526C30687B96C5C4742E9583555A118232 Key-Arg : None Start Time: 1292985376 Timeout : 300 (sec) Verify return code: 18 (self signed certificate) --- 250 DSN Oddly enough when I try to send an email from the machine itself it does work: echo test | mail -s "test subject" [email protected]

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• Basic OpenVPN setup not working

  - by WalterJ89

  I am attempting to connect 2 win7 (x64+ x32) computers (there will be 4 in total) using OpenVPN. Right now they are on the same network but the intention is to be able to access the client remotely regardless of its location. The Problem I am having is I am unable to ping or tracert between the two computers. They seem to be on different subnets even though I have the mask set to 255.255.255.0. The server ends up as 10.8.0.1 255.255.255.252 and the client 10.8.0.6 255.255.255.252. And a third ends up as 10.8.0.10. I don't know if this a Windows 7 problem or something I have wrong in my config. Its a very simple set up, I'm not connecting two LANs. this is the server config (removed all the extra lines because it was too ugly) port 1194 proto udp dev tun ca keys/ca.crt cert keys/server.crt key keys/server.key # This file should be kept secret dh keys/dh1024.pem server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt client-to-client duplicate-cn keepalive 10 120 comp-lzo persist-key persist-tun status openvpn-status.log verb 6 this is the client config client dev tun proto udp remote thisdomainis.random.com 1194 resolv-retry infinite nobind persist-key persist-tun ca keys/ca.crt cert keys/client.crt key keys/client.key ns-cert-type server comp-lzo verb 6 Is there anything I missed in this? keys are all correct and the vpn's connect fine, its just the subnet or route issue. Thank You EDIT it seems on the server the openvpn-status.log has the routes for the client SERVER OpenVPN CLIENT LIST Updated,Wed May 19 18:26:32 2010 Common Name,Real Address,Bytes Received,Bytes Sent,Connected Since client,192.168.10.102:50517,19157,20208,Wed May 19 17:38:25 2010 ROUTING TABLE Virtual Address,Common Name,Real Address,Last Ref 10.8.0.6,client,192.168.10.102:50517,Wed May 19 17:38:56 2010 GLOBAL STATS Max bcast/mcast queue length,0 END Also this is from the client.log file: Which seems to be correct C:\WINDOWS\system32\route.exe ADD 10.8.0.0 MASK 255.255.255.0 10.8.0.5 Another EDIT 'route print' on the server shows the route: Destination Mask Gateway Interface 10.8.0.0 255.255.255.0 10.8.0.2 10.8.0.1 the same on the client shows 10.8.0.0 255.255.255.0 10.8.0.5 10.8.0.6 So the routes are there.. what can the problem be? Is there anything wrong with my configs? Why would OpenVPN be having problems communicating?

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• How can I make Firefox ignore Next/Prev-Buttons on the Keyboard?

  - by ThiefMaster

  My ThinkPad notebook has "next page" and "previous page" buttons right next to the cursor keys. While writing code (sometimes in textareas on pages such as StackOverflow) accidentally hitting one of these keys is very annoying - either you navigate away or you get the "do you really want to navigate way" prompt. I never use those keys anyway so I wonder if there's an option in Firefox to ignore those keys. An option to remap them globally or simply disable them would (OS: Windows 7) be fine, too.

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• google-app-engine deploy error..

  - by zjm1126

  2010-04-20 15:33:39,421 WARNING appengine_rpc.py:399 ssl module not found. Without the ssl module, the identity of the remote host cannot be verified, and connections may NOT be secure. To fix this, please install the ssl module from http://pypi.python.org/pypi/ssl . To learn more, see http://code.google.com/appengine/kb/general.html#rpcssl . how can i do ? thanks

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