cvasilak

cvasilak$ brew --config
HOMEBREW_VERSION: 0.7
HEAD: (none)
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_LIBRARY_PATH: /usr/local/Library/Homebrew
Hardware: dual-core 64-bit core2
OS X: 10.6.5
Kernel Architecture: i386

cvasilak

cvasilak$ brew install -vd rrdtool
==> Build Environment
CC: /usr/bin/cc => /usr/bin/gcc-4.2
CXX: /usr/bin/c++ => /usr/bin/c++-4.2
LD: /usr/bin/cc => /usr/bin/gcc-4.2
CFLAGS: -O3 -march=core2 -w -pipe
CXXFLAGS: -O3 -march=core2 -w -pipe
CPPFLAGS: -I/usr/local/Cellar/libpng/1.2.44/include -I/usr/local/Cellar/libxml2/2.7.7/include -I/usr/local/Cellar/gettext/0.17/include
LDFLAGS: -L/usr/local/Cellar/libpng/1.2.44/lib -L/usr/local/Cellar/libxml2/2.7.7/lib -L/usr/local/Cellar/gettext/0.17/lib
MAKEFLAGS: -j2

cvasilak

lrwxr-xr-x  1 cvasilak  staff      39 23 Οκτ 11:19 charset.alias -> ../Cellar/glib/2.24.2/lib/charset.alias
lrwxr-xr-x  1 cvasilak  staff      34 23 Οκτ 11:19 glib-2.0 -> ../Cellar/glib/2.24.2/lib/glib-2.0
lrwxr-xr-x  1 cvasilak  staff      46 23 Οκτ 11:22 libexpat.1.5.2.dylib -> ../Cellar/expat/2.0.1/lib/libexpat.1.5.2.dylib
lrwxr-xr-x  1 cvasilak  staff      42 23 Οκτ 11:22 libexpat.1.dylib -> ../Cellar/expat/2.0.1/lib/libexpat.1.dylib
lrwxr-xr-x  1 cvasilak  staff      36 23 Οκτ 11:22 libexpat.a -> ../Cellar/expat/2.0.1/lib/libexpat.a
lrwxr-xr-x  1 cvasilak  staff      40 23 Οκτ 11:22 libexpat.dylib -> ../Cellar/expat/2.0.1/lib/libexpat.dylib
lrwxr-xr-x  1 root      wheel      13 12 Δεκ  2009 libfuse.0.dylib -> libfuse.dylib
lrwxr-xr-x  1 root      wheel      15 12 Δεκ  2009 libfuse.2.7.3.dylib -> libfuse.2.dylib
-rwxr-xr-x  1 root      wheel  790776 19 Δεκ  2008 libfuse.2.dylib
lrwxr-xr-x  1 root      wheel      15 12 Δεκ  2009 libfuse.dylib -> libfuse.2.dylib

cvasilak

casper:~ cvasilak$ which pkg-config
/usr/local/bin/pkg-config

casper:~ cvasilak$ brew install pango
Formula already installed: /usr/local/Cellar/pango/1.28.1

casper:~ cvasilak$ brew link pango
25 links created for /usr/local/Cellar/pango/1.28.1

casper:~ cvasilak$ brew install rrdtool

cvasilak

• What is a pipeline ?

A pipeline represents a set of n connections to a server. The pipeline class offers some simple 'management' APIs to work with containing 'pipe' objects. Basically it allows you to add or remove new connections to the pipeline.

• What is a pipe ?

A pipe represents one connection to a server. The pipe API is basically an abstraction layer for any server side connection, which all allows you to simply 'read' from, or 'write' to a server connection. However, technical details like RESTful APIs (e.g. HTTP PUT or HTTT GET) are not exposed on the pipeline and pipe APIs. In the future you can have different type of pipe objects (-> connections). The default (and CURRENTLY only supported) type is a REST connection.

Below is an example from our JavaScript lib:

cvasilak

#import <Foundation/Foundation.h>

@protocol AGEntity <NSObject>

@optional
-(NSDictionary*) mapping;

@end

@inteface Customer: NSOBject<AGEntity>

cvasilak

@interface Tweet : NSObject
@property(nonatomic, readonly) NSString *idStr;
@property(nonatomic, readonly) NSString *tweetText;

@property(nonatomic, readonly) User *userOwner;

@end

cvasilak

@interface Tweet : NSObject
@property(nonatomic, readonly) NSString *idStr;
@property(nonatomic, readonly) NSString *tweetText;

@property(nonatomic, readonly) User *userOwner;

@end

---

cvasilak

// generate token
_secret = @"XXXXXXX";
NSData *secretData = [AGBase32 base32Decode:_secret];
AGTotp _totp = [[AGTotp alloc] initWithSecret:secretData];
                                       
NSString *otp = [_totp generateOTP];

cvasilak

AeroGear and OTP

If you happen to use online banking systems, certainly you will have come across small security devices that provide you with an extra password during your login process. That is, in addition to your standard username/password combination, you are asked to provide an extra password, the so called "One Time Password" (OTP). That has two effects a) the bank can verify that you are the actual person making the transaction because of the possession of this device that only you can have, the so called possession factor in the two-factor authentication system and b) prevents replay attacks cause the password is only valid for a limited amount of time. This generation of the OTP password can either be done using a hardware device (hardware token) as we described earlier or with the help of a mobile application running on a smartphone (softwar