smalltalk programming for the web

Logging libraries for Pharo 5

19 February 2017

Below are the logging libraries that I've found for Pharo/Squeak:

  • Log4s
  • Nagare
  • OsmoSyslog
  • Syslog
  • SystemLogger
  • Toothpick

Log4s for Pharo is a port of the VA Smalltalk port of the popular Java logging framework Log4j. I installed it from Pharo 5's catalog browser. 206 of 207 tests passed, with 1 failure. None of the classes is commented, although being a port of Log4j, the Java documentation should work as reference.

Nagare is a "flexible logger which connects to Fluentd." It was written to run on VisualWorks, Squeak and Pharo. I installed it from the catalog browser. None of the classes is commented. No test suite. Documentation remains on the Google Code project wiki.

OsmoSyslog is a "log backend/target to use system syslog." AGPLv3+. I stopped there.

Syslog is an RFC5452 Syslog UDP client. I installed it using a Gofer snippet. It loads OSProcess. Every class has a class comment. Test suite has four tests. Because I have OSSubprocess in the same image I did not attempt to run the tests.

SystemLogger "is an easy to use, very lightweight, and highly configurable object logging framework." It failed to install from the catalog browser but loaded successfully using a Gofer snippet. Every class has a class comment. 17 of 19 tests passed, with 2 failures.

Toothpick is a port to Pharo of the Smalltalk library written to run on Dolphin, Squeak, VisualAge and VisualWorks. Documentation on the original site looks good. 16 of 19 tests passed, with 1 failure and 2 errors.

SHA256/512 Password Hashing for Pharo 5

18 February 2017

I've updated my SHA256/512 password hashing library to Pharo 5's FFI and moved it from SS3 to GH.

In the GH repo, C source files are in the src-c directory. Compile with the Makefile there. Move the .so or .dylib file to where the VM can find it.

To load the Smalltalk code, in a Pharo playground:

Metacello new 
  baseline: 'PasswordCrypt'; 
  repository: 'github://PierceNg/PasswordCrypt/src-st'; 

Run the tests in TestRunner. Provided the Pharo VM can find the shared library, all 12 tests should pass.

This version adds an authentication database that uses in-image persistence, accessed programmatically via the PCAuthenticator uniqueInstance, and a very simple user interface invoked thusly:

PCAuthenticatorUI new openWithSpec

Currently PCAuthenticator hardcodes to SHA256. It should be straightforward to make the hashing algorithm pluggable, including from other shared libraries. Hosting on GH makes it easier for forks and PRs.

Glorp SQLite on Pharo 6

1 February 2017

I've updated ConfigurationOfGlorp for Pharo 6 and added catalog methods to ConfigurationOfGlorpSQLite.

Take a fresh Pharo 60365 image, the latest as of yesterday's download. Launch it, open the Catalog Browser, and install GlorpSQLite from there.

Run the Glorp tests in TestRunner. The result should be green, with all 889 tests passed and 12 tests skipped. The database file is sodbxtestu.db in your image directory.

(On Pharo 5, Glorp runs and passes total of 953 tests. Something to look into.)


31 January 2017

I've created ConfigurationOfGlorpSQLite on STH.

Take a fresh Pharo 5 image. Make a script like the following and run it on the image:

% cat
pharo $1.image config $MCREPO ConfigurationOfGlorpSQLite --install=stable

% ./ Pharo-50757

When done, fire up the image again, and run the Glorp tests in TestRunner. The result should be green, with all 953 tests passed and 12 tests skipped. The database file is sodbxtestu.db in your image directory.