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Package whereami
Short Description Common interface for wifi positioning services
License MIT
Homepage https://github.com/tuupola/whereami
Informations about the package whereami
Whereami
Common PHP interface for wifi positioning services, inspired by whoami.
Install
Install the library using Composer. You will also need to choose a HTTP client for example php-http/curl-client.
If you do not install HTTP client you will get No HTTPlug clients found
and Puli Factory is not available
errors. Ignore the Puli part, you do not need it. Just install an HTTP client.
Finally if your project does not already have one, you must include a PSR-7 implementation. Good candidate is zendframework/zend-diactoros
. Many frameworks such as Slim and Expressive already include PSR-7 by default and this part is not needed.
Usage
Current location
To find current computers location you must provide wifi location service provider and optionally a wifi network scanner. With macOS you can use AirportScanner
which does not require any extra setup. With Linux based systems you can use IwlistScanner
which needs root privileges to be run. Example below uses Mozilla Location Service.
Pro tip! Like mentioned above providing scanner is optional. If scanner is not provided system will try to autodetect it. This way same code should work in both macOS and *NIX systems.
Third party location
Sometimes it is useful to locate third party locations. For example you might have several IoT devices whose location you need to track. You can locate these by calling $locator->whereis($networks)
method with network info as a parameter.
Providers
Combain Provider
This provider uses Combain CPS API. It requires an API key but they do offer free evaluation account for developers.
Google Geolocation Provider
This provider uses The Google Maps Geolocation API. You will need an API key. There are some limits on free usage.
Google Browserlocation Provider
This provider uses old undocumented browserlocation API. It does not require API key.
Mozilla Provider
This provider uses Mozilla Location Service (MLS). It requires an API key but you can use the key test
for developing.
Radiocells Provider
This provider uses Radiocells Network Geolocation Services API. It is free to use and does not require an API key.
Unwired Provider
This provider uses Unwired Labs LocationAPI. API key is required but you can sign up for free developer account.
Scanners
Scanners scan the surrounding wifi networks and return the results as an array. This array is then given to a provider which uses the network data to retrieve the geoposition.
Airport Scanner
This is the default scanner for macOS. It uses the airport
commandline tool from Apple80211 framework. Custom command can be passed via constructor. This is optional and should be used for example if your airport
binary is located in non standard place
Iwlist With Sudo
This is the default scanner for Linux and other *NIX based systems. It uses the iwlist commandline tool. This scanner is bit more complicated to set up since it needs root privileges to be run.
There are several ways to get around this. The default one is to give your webserver privileges to run sudo iwlist
without password by editing the /etc/sudoers
file.
Then add the following to the end of the file.
After editing the file save and exit. Make sure you can run the command as your webserver user.
If you can see the scan results you are good to go.
Iwlist Without Sudo
If you do not want to give the webserver privileges to run iwlist
as root you could set up a root cronjob which writes the scan results to text file instead.
Add the following line to the crontab. This will run the scan every 10 minutes.
After editing the file save and exit. Wait for 10 minutes to make sure your cron entry works.
If you can see the scan results you are good to go. However you must use custom command which uses the output from the cronjob.
Adapters
Some operating have commandline tools for determining the current position. Adapters provide an interface for these. You can use an adapter for developing if you do not have access to any external geopositioning provider.
Note that adapters always return the location of the current machine. They cannot be used to determine third party location. Trying to do so will trigger a PHP warning.
Corelocation
This adapter uses the macOS CoreLocationCLI tool. Internally it uses Core Location services. Install it using Homebrew.
LocateMe
This adapter uses the macOS LocateMe tool. Internally it uses Core Location services. Install it using Homebrew.
Testing
You can run tests either manually or automatically on every code change. Automatic tests require entr to work.
Contributing
Please see CONTRIBUTING for details.
Security
If you discover any security related issues, please email [email protected] instead of using the issue tracker.
License
The MIT License (MIT). Please see License File for more information.
All versions of whereami with dependencies
php-http/httplug Version ^1.1
php-http/client-common Version ^1.5
tuupola/http-factory Version ^0.3.0