Synapse

“Synapses are the connections between neurons in the brain through which nervous impulses pass.”

Introduction

Synapse is an advanced event framework in C++:

• Modulair plugin system
• Easy to write modules
• Easy to send and receive message, while maintaining code readability
• Session management
• Build in authentication
• Fine grained access control on sending and receiving of events
• Events can be handled by multiple threads if desired (max-threads is adjustable per session and per module)

Architecture diagram

On a abtract level, Synapse tries to split up the Internet application layers in to OSI model layers:

• Modules don't need to be aware of the node they run on.
• A module can have 1 or more sessions.
• The C++ API is very simple: Just a way to send and receive messages.
• The core keeps track of sessions and knows which module(s) to deliver the message to.
• tcp/json connector:
  • A special module to transparently transport messages to other modules.
  • Incoming message src is mapped to local session.
• http/json connector:
  • A special module to allow javascript instances in browsers to connect and communicate with each other.

Other documentation

Whitepaper/notes (still dutch and messy, but nice drawings ;): ​http://open.syn3.nl/syn3/trac/default/export/latest/trunk/projects/synapse/docs/synapse.odt

Module documentation: ​http://open.syn3.nl/syn3/trac/default/browser/trunk/projects/synapse/modules/docs/html

Download

Download:

psy@r3m0t3h0st ~/test $ svn co --username=anonymous --password=anonymous http://open.syn3.nl/syn3/svndav/default/trunk/projects/synapse
...
Checked out revision 311.

Configure/compile:

psy@r3m0t3h0st ~/test $ cd synapse/
psy@r3m0t3h0st ~/test/synapse $ cmake .
...
psy@r3m0t3h0st ~/test/synapse $ make
...

Run a module:

psy@r3m0t3h0st ~/test/synapse $ ./synapse modules/test.module/libtest.so
...

Automatic asterisk operator panel

This is the first serious project built on top of the synapse platform.

• Multi server
• Multi tennant
• Minimal configuration
• Auto detection of SIP devices
• Web based
• Login is done by calling a special number, so no additional password and user management is neccesary.
• Tested with configurations generated by:
  • Asterisk_GUI
  • Thirdlane.
  • FreePBX (use AMPEXTENSIONS=deviceanduser in /etc/amportal.conf to be able to set the description)

Used synapse modules:

• asterisk_ami: Connects to a asterisk management interface
• http_json: Build-in webserver for full-duplex events. (used in combination with asterisk.html.)
• timer module
• asterisk: this is the project module that mainly talks with the asterisk_ami module. its responsible for collecting and tracking all relevant asterisk data.
• marquee: Module to control our marquee
• asterisk_marquee: Module to couple asterisk module with multiple remote marquees.

Roadmap

Current version:

• Tracking of all calls, channels and sip devices.
• Html panel that shows all sip devices and channels in realtime.
• Still read-only
• Authentication by calling a special number from your sip-device
• Multi tennant support.
• Better user interface.

Next version:

• Multiple marquee support.

Future versions:

• Transfer calls
• Make calls
• etc.

Media player

• Based on libvlc
• Like Media Player Deamon (MPD) but also for videos.
• Realtime web interface
• Easy programmable for remote control via synapse event mapper.
• Control output on marquee
• MPD compatible so you can use your favorite MPD client.