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Adding a Web Server to Your Sim
If Trick is configured with Civetweb, adding a web server to your simulation simply requires including the CivetServer sim module into your S_define file:
#include "sim_objects/CivetServer.sm"
Configuration of the Web Server
The following (input.py) parameters are available to configure your web server:
| Parameter Name | Default Value | Description |
|---|---|---|
| web.server.enable | False |
Must be explicitly enabled |
| web.server.port | 8888 |
Web servers “listen” port |
| web.server.document_root | "www" |
Web servers document root |
| web.server.debug | False |
Print Client/Server Communication. |
| web.server.ssl_enable | False |
Encrypt traffic. Uses https instead of http. |
| web.server.path_to_ssl_cert | "~/.ssl/server.pem" |
Path to your certificate. This is only used if ssl_enable = True |
| web.server.error_log_file | "civet_server_error.log" |
CivetWeb error log file. |
For your web server to be active, you must at least specify the following :
web.server.enable = True
To have your web server listen on port 8890, rather than 8888, you would specify:
web.server.port = 8890
To serve files from a directory called my_document_root, rather than www:
web.server.document_root = "my_document_root"
To see client/server communication:
web.server.debug = True
When the Web Server Starts
The web server, if enabled, will start during sim initialization. When it does, it will look for the specified document root directory. By default that’s “www”. If root directory doesn’t exist, one will be created with a simple index.html file , a style sheet, and a couple of directories.
Connecting to Your Web Server
Assuming that you accepted the default port, connect to http://localhost:8888/ (https://localhost:8888/ if ssl_enable=True) from your web browser. This will display the index.html file in your root directory.
The Default Document Root Directory
The default document root directory that was initially created for you is minimal.
www/
index.html
style.css
apps/
images/
index.html is the file that’s displayed when you connect to http://localhost:8888/.
style.css is a CSS style-sheet that’s included by index.html to give it some pizzazz.
The apps directory contains links to some example html/javascript applications
in $TRICK_HOME/trick_source/web/apps.
The images directory contains trick_icon.png.
You are encouraged to add to, modify, and/or delete these files and directories to best suite the needs of your project.
Continue to Configuring Trick with Civetweb