friendica/doc/Config.md

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Config values that can only be set in config/local.config.php
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==========================================================
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* [Home](help)
Friendica's configuration is done in two places: in PHP array configuration files and in the `config` database table.
Database config values overwrite the same file config values.
## File configuration
The configuration format for file configuration is an array returned from a PHP file.
This prevents your webserver from displaying your private configuration. It interprets the configuration files and displays nothing.
A typical configuration file looks like this:
```php
<?php
/*
* Comment block
*/
return [
'section1' => [
// Comment line
'key' => 'value',
],
'section2' => [
'array' => ['value0', 'value1', 'value2'],
],
];
```
### Configuration location
The `config` directory holds key configuration files:
- `defaults.config.php` holds the default values for all the configuration keys that can only be set in `local.config.php`.
- `settings.config.php` holds the default values for some configuration keys that are set through the admin settings page.
- `local.config.php` holds the current node custom configuration.
- `addon.config.php` is optional and holds the custom configuration for specific addons.
Addons can define their own default configuration values in `addon/[addon]/config/[addon].config.php` which is loaded when the addon is activated.
#### Migrating from .htconfig.php to config/local.config.php
The legacy `.htconfig.php` configuration file is still supported, but is deprecated and will be removed in a subsequent Friendica release.
The migration is pretty straightforward:
If you had any addon-specific configuration in your `.htconfig.php`, just copy `config/addon-sample.config.php` to `config/addon.config.php` and move your configuration values.
Afterwards, copy `config/local-sample.config.php` to `config/local.config.php`, move the remaining configuration values to it according to the following conversion chart, then rename your `.htconfig.php` to check your node is working as expected before deleting it.
<style>
table.config {
margin: 1em 0;
background-color: #f9f9f9;
border: 1px solid #aaa;
border-collapse: collapse;
color: #000;
width: 100%;
}
table.config > tr > th,
table.config > tr > td,
table.config > * > tr > th,
table.config > * > tr > td {
border: 1px solid #aaa;
padding: 0.2em 0.4em
}
table.config > tr > th,
table.config > * > tr > th {
background-color: #f2f2f2;
text-align: center;
width: 50%
}
</style>
<table class="config">
<thead>
<tr>
<th>.htconfig.php</th>
<th>config/local.config.php</th>
</tr>
</thead>
<tbody>
<tr>
<td><pre>
$db_host = 'localhost';
$db_user = 'mysqlusername';
$db_pass = 'mysqlpassword';
$db_data = 'mysqldatabasename';
$a->config["system"]["db_charset"] = 'utf8mb4';
</pre></td>
<td><pre>
'database' => [
'hostname' => 'localhost',
'username' => 'mysqlusername',
'password' => 'mysqlpassword',
'database' => 'database',
'charset' => 'utf8mb4',
],
</pre></td>
</tr>
<tr>
<td><pre>
$a->config["section"]["key"] = "value";
</pre></td>
<td><pre>
'section' => [
'key' => 'value',
],
</pre></td>
</tr>
<tr>
<td><pre>
$a->config["section"]["key"] = array(
"value1",
"value2",
"value3"
);
</pre></td>
<td><pre>
'section' => [
'key' => ['value1', 'value2', 'value3'],
],
</pre></td>
</tr>
<tr>
<td><pre>
$a->config["key"] = "value";
</pre></td>
<td><pre>
'config' => [
'key' => 'value',
],
</pre></td>
</tr>
<tr>
<td><pre>
$a->config['register_policy'] = REGISTER_CLOSED;
</pre></td>
<td><pre>
'config' => [
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'register_policy' => \Friendica\Module\Register::CLOSED,
],
</pre></td>
</tr>
<tr>
<td><pre>
$a->path = "value";
</pre></td>
<td><pre>
'system' => [
'urlpath' => 'value',
],
</pre></td>
</tr>
<tr>
<td><pre>
$default_timezone = "value";
</pre></td>
<td><pre>
'system' => [
'default_timezone' => 'value',
],
</pre></td>
</tr>
<tr>
<td><pre>
$pidfile = "value";
</pre></td>
<td><pre>
'system' => [
'pidfile' => 'value',
],
</pre></td>
</tr>
<tr>
<td><pre>
$lang = "value";
</pre></td>
<td><pre>
'system' => [
'language' => 'value',
],
</pre></td>
</tr>
</tbody>
</table>
#### Migrating from config/local.ini.php to config/local.config.php
The legacy `config/local.ini.php` configuration file is still supported, but is deprecated and will be removed in a subsequent Friendica release.
The migration is pretty straightforward:
If you had any addon-specific configuration in your `config/addon.ini.php`, just copy `config/addon-sample.config.php` to `config/addon.config.php` and move your configuration values.
Afterwards, copy `config/local-sample.config.php` to `config/local.config.php`, move the remaining configuration values to it according to the following conversion chart, then rename your `config/local.ini.php` file to check your node is working as expected before deleting it.
<table class="config">
<thead>
<tr>
<th>config/local.ini.php</th>
<th>config/local.config.php</th>
</tr>
</thead>
<tbody>
<tr>
<td><pre>
[database]
hostname = localhost
username = mysqlusername
password = mysqlpassword
database = mysqldatabasename
charset = utf8mb4
</pre></td>
<td><pre>
'database' => [
'hostname' => 'localhost',
'username' => 'mysqlusername',
'password' => 'mysqlpassword',
'database' => 'database',
'charset' => 'utf8mb4',
],
</pre></td>
</tr>
<tr>
<td><pre>
[section]
key = value
</pre></td>
<td><pre>
'section' => [
'key' => 'value',
],
</pre></td>
</tr>
<tr>
<td><pre>
[config]
register_policty = REGISTER_CLOSED
</pre></td>
<td><pre>
'config' => [
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'register_policy' => \Friendica\Module\Register::CLOSED,
],
</pre></td>
</tr>
<tr>
<td><pre>
[section]
key[] = value1
key[] = value2
key[] = value3
</pre></td>
<td><pre>
'section' => [
'key' => ['value1', 'value2', 'value3'],
],
</pre></td>
</tr>
</tbody>
</table>
### Database Settings
The configuration variables database.hostname, database.username, database.password, database.database and database.charset are holding your credentials for the database connection.
If you need to specify a port to access the database, you can do so by appending ":portnumber" to the database.hostname variable.
'database' => [
'hostname' => 'your.mysqlhost.com:123456',
]
If all of the following environment variables are set, Friendica will use them instead of the previously configured variables for the db:
MYSQL_HOST
MYSQL_PORT
MYSQL_USERNAME
MYSQL_PASSWORD
MYSQL_DATABASE
## Config values that can only be set in config/local.config.php
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There are some config values that haven't found their way into the administration page.
This has several reasons.
Maybe they are part of a current development that isn't considered stable and will be added later in the administration page when it is considered safe.
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Or it triggers something that isn't expected to be of public interest.
Or it is for testing purposes only.
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**Attention:** Please be warned that you shouldn't use one of these values without the knowledge what it could trigger.
Especially don't do that with undocumented values.
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These configurations keys and their default value are listed in `config/defaults.config.php` and should be overwritten in `config/local.config.php`.
## Administrator Options
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Enabling the admin panel for an account, and thus making the account holder admin of the node, is done by setting the variable
'config' => [
'admin_email' => 'someone@example.com',
]
Where you have to match the email address used for the account with the one you enter to the `config/local.config.php` file.
If more then one account should be able to access the admin panel, separate the email addresses with a comma.
'config' => [
'admin_email' => 'someone@example.com,someoneelse@example.com',
]
If you want to have a more personalized closing line for the notification emails you can set a variable for the `admin_name`.
'config' => [
'admin_name' => 'Marvin',
]