boofnet
78 lines
2.9 KiB
Markdown
78 lines
2.9 KiB
Markdown
# ekho
|
|
##### _Needlessly Networked MOTD generator_
|
|
## Why?
|
|
To test my abilities to develop networked programs, and to enhance my skills in writing such.
|
|
## Requirements
|
|
### Hardware
|
|
- Client machine
|
|
- Server machine (not required to be distinct from Client)
|
|
### Software
|
|
- [Golang]
|
|
- Linux distro (highly recommened)
|
|
- ```make``` is also used in this guide, but the makefile is incredibly simple, and can be skipped entirely by running ```go build``` instead
|
|
### Installation
|
|
Golang can be installed on Mac with
|
|
``` sh
|
|
brew install golang
|
|
```
|
|
Clone the repo
|
|
``` sh
|
|
git clone https://github.com/alexander-the-alright/ekho
|
|
cd ekho
|
|
```
|
|
Using your favorite text editor, change the destination IP and Port to whatever works for you. This is defined on line 247 in client.go as 127.0.0.1:1300.
|
|
|
|
Now the server file needs to be run on the preferred port, as specified in the client file. This is defined on line 257 in server.go.
|
|
|
|
|
|
The binary(s) can be obtained using the makefile
|
|
If the server is being run on a separate machine, only run make with client flag
|
|
``` sh
|
|
make client
|
|
```
|
|
If both binaries are being run on the same machine, ```make all``` will suffice. Although, both of these commands can be bypassed with ```go build```, as this is all ```make``` does anyway.
|
|
``` sh
|
|
make all
|
|
```
|
|
|
|
#### NOTE
|
|
In previous versions, the suggested method of installation involved placing bash scripts in ```/etc/update-motd.d/```, however, there have been issues getting that installation method working (namely, having MOTD run user-defined commands), and the current quick and extremely dirty suggested installation method is to just append the user's shell config files (```.bashrc```, ```.bash_profile```, ```.zshrc```, etc) with the paths to the executables.
|
|
|
|
For example, if the server used zsh, the installation could look something like this:
|
|
``` sh
|
|
echo "~/abs/path/to/server.o &" >> ~/.zshrc
|
|
```
|
|
Similarly for a client using Bash:
|
|
``` sh
|
|
echo "~/abs/path/to/client.o" >> ~/.bashrc
|
|
```
|
|
|
|
Any help figuring out the issue with MOTD would be appreciated.
|
|
|
|
Finally done!
|
|
### Usage
|
|
The client uses the following flags
|
|
``` sh
|
|
-h - display help message
|
|
-a <s> - adds required argument <s> as a quote to server
|
|
-l - list all quotes
|
|
-r [i] - remove; may be run with or without argument
|
|
-ip - specify alternate server destination
|
|
```
|
|
|
|
### How It Works
|
|
The sequence diagram can be viewed in ```diag``` folder, which shows the sequence of networked messages for each usage of ekho.
|
|
The source code is in the same folder, ```ekho-seq.txt```, and can be uploaded to [sequencediagram.org][seqdiag] to rerender the diagram and view any updates.
|
|
|
|
|
|
### To Be Implemented
|
|
- Multiple transactions for large quote file
|
|
- Log all uses/transaction data each day
|
|
- Request, send, and receive the logfile for any day
|
|
- User-specific quotes/quotefiles
|
|
- Installation (client-side, at least) via MOTD
|
|
|
|
|
|
[golang]: <https://go.dev/doc/install>
|
|
[seqdiag]: <sequencediagram.org>
|