slanger | Open Pusher implementation compatible with Pusher libraries | Runtime Evironment library

by stevegraham Ruby Version: v0.6.0 License: MIT

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | slanger Summary

slanger is a Ruby library typically used in Telecommunications, Media, Media, Entertainment, Server, Runtime Evironment, Nodejs applications. slanger has no bugs, it has a Permissive License and it has medium support. However slanger has 1 vulnerabilities. You can download it from GitHub.

Slanger is an open source server implementation of the Pusher protocol written in Ruby. It is designed to scale horizontally across N nodes and to be agnostic as to which Slanger node a subscriber is connected to, i.e subscribers to the same channel are NOT required to be connected to the same Slanger node. Multiple Slanger nodes can sit behind a load balancer with no special configuration. In essence it was designed to be very easy to scale. Presence channel state is shared using Redis. Channels are lazily instantiated internally within a given Slanger node when the first subscriber connects. When a presence channel is instantiated within a Slanger node, it queries Redis for the global state across all nodes within the system for that channel, and then copies that state internally. Afterwards, when subscribers connect or disconnect the node publishes a presence message to all interested nodes, i.e. all nodes with at least one subscriber interested in the given channel. Slanger is smart enough to know if a new channel subscription belongs to the same user. It will not send presence messages to subscribers in this case. This happens when the user has multiple browser tabs open for example. Using a chat room backed by presence channels as a real example, one would not want "Barrington" to show up N times in the presence roster because Barrington has the chat room open in N browser tabs. Slanger was designed to be highly available and partition tolerant with eventual consistency, which in practise is instantaneous.

Support

Quality

Security

License

Reuse

Support

slanger has a medium active ecosystem.

It has 1700 star(s) with 207 fork(s). There are 55 watchers for this library.

It had no major release in the last 6 months.

slanger has no issues reported. There are 6 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of slanger is v0.6.0

Quality

slanger has 0 bugs and 0 code smells.

Security

slanger has 1 vulnerability issues reported (1 critical, 0 high, 0 medium, 0 low).

slanger code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

slanger is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

slanger releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed slanger and discovered the below as its top functions. This is intended to give you an instant insight into slanger implemented functionality, and help decide if they suit your requirements.

Sets a notification message .
Create a webhook
Initializes a new event .
Updates a member from a channel .
Initializes a callback callback
Creates a new + Hash + .
Builds a failure message
Check if failed attributes are failed

Get all kandi verified functions for this library.

slanger Key Features

No Key Features are available at this moment for slanger.

slanger Examples and Code Snippets

No Code Snippets are available at this moment for slanger.

Community Discussions

Trending Discussions on slanger

How do I make the box stay fixed while keeping it's position when scrolling on the side?

How to set up Redis authentication on Slanger

QUESTION

How do I make the box stay fixed while keeping it's position when scrolling on the side?

Asked 2022-Mar-07 at 23:30

I am having a problem with my code an would be highly grateful for some advise. I want the yellow square to stay at the left side, having it´s own column just as it is now but I want the square to be fixed on the screen while scrolling down. Every time I write position:fixed or write both position:left:fixed;" in my code it takes over and melts everything together into one column.

Here comes the code!

...

ANSWER

Answered 2022-Mar-07 at 12:58

The problem is that when you use position: fixed;, the element is no longer relative to the container but relative to the page or in other words positioned absolute. That makes it appear on top of the 2nd div. The solution is that you can use position: sticky; instead.. The appearance is a bit different though...

Source https://stackoverflow.com/questions/71381210

QUESTION

How to set up Redis authentication on Slanger

Asked 2020-Dec-08 at 03:00

Slanger is an open source server implementation of the Pusher protocol written in Ruby.

It requires Redis to run, where it keeps the global state to be shared between multiple Slanger instances.

If Redis is configured via redis.conf to use authentication, where should I set up the Slanger to know the Redis password?

I tried to read the Slanger documentation, but I haven't found it.

Inside the Slanger source code I found this connection creation, passing a string parameter, which looks like a host address:

Is there some way of passing the password together the host, like a connection string or editing the source code to do it?

...

ANSWER

Answered 2020-Dec-08 at 03:00

I solved the problem doing the following:

Source https://stackoverflow.com/questions/65139171

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

CVE-2019-1010306 CRITICAL

Slanger 0.6.0 is affected by: Remote Code Execution (RCE). The impact is: A remote attacker can execute arbitrary commands by sending a crafted request to the server. The component is: Message handler & request validator. The attack vector is: Remote unauthenticated. The fixed version is: after commit 5267b455caeb2e055cccf0d2b6a22727c111f5c3.

https://github.com/stevegraham/slanger/pull/238/commits/5267b455caeb2e055cccf0d2b6a22727c111f5c3

Install slanger

Most linux distributions have by defualt a very low open files limit. In order to sustain more than 1024 ( default ) connections, you need to apply the following changes to your system: Add to /etc/sysctl.conf:.
If you want to run multiple slanger instances in a cluster, one option will be to balance the connections with Haproxy. A basic config can be found in the folder examples. Haproxy can be also used for SSL termination, leaving slanger to not have to deal with SSL checks and so on, making it lighter.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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