README

This keeps the crimeflare data current in a database. The download page for the data file zips: http://www.crimeflare.info/zippy.html This has its own search form: http://www.crimeflare.info/cfs.html#box

Overview

It downloads the data zips and then extracts them. Those extracted files are then parsed into variables. That data is then inserted into a database with a table for each data file.

The settings file, crimeflare.json, lets you set the database credentials, the files to download, and the table sql information.

This is meant to run as a cronjob once every three weeks. Crimeflare only updates once every three weeks anyway. If you attempt to do it hourly for example they will ban your IP for abuse. So don't abuse the resources they spent their time building.

Installation

This is a simple composer require.

php composer.phar require arikin/crimeflare

Protect the crimeflare.json file by carefully setting permissions on it. You could also move it to another path if you need. Just pass the setting into Crimeflare:

$crime = new Crimeflare(array(
    'settings_file' => "[full path to file]"
));

Usage

Update the crimeflare.json file with real DB credentials.
Initiate the Crimeflare class and call the update method.

use Arikin\Crimeflare;

$crime = new Crimeflare();
$crime->update();

Please note that the Crimeflare data files are rather large. Each file is handled one at a time and line by line, but creating the sql INSERT statements does take up memory. So be sure to set the memory limit for the script.

ini_set('memory_limit', '2G');

crimeflare.json

JSON formated settings file. Below is a description of settings:

• base_dir - Full path to base directory. No trailing slash. In here the download/ and extract/ directories are created. Important the data files are not deleted after finishing. Please do this in your script to save space.

• base_url - Base url to files. No trailing slash. Default is: http://crimeflare.net:83/domains

• curl_timeout - Timeout for fetching each file.

• pdo - Array of PDO object settings

  • pdo: host - IP or domain of mysql server
  • pdo: db - Database name
  • pdo: user - Username for mysql user
  • pdo: pass - Password for that user
  • pdo: charset - Character set to use in connecting to the database
  • pdo: timeout - PDO timeout in seconds.

• crimeflare - Array of values for each Crimeflare data file. See below for an example of ipout.zip.

The keys are the filename without any prefixes or suffixes. Here is a sample of one:

• ipout - Array of options for this file
  • ipout: file - filename without any prefixes or suffixes. Important to identifying and creating files and tables.
  • ipout: uri - URL to the files without actual file name. No trailing slashes.
    • ipout: sql - Array of settings for the SQL and parsing the data file
    • ipout: sql: table - Name for table used for this file's data. A prefix is suggested as the tables will be Dropped and Created.
    • ipout: sql: fields - Array of fields. Each line is split on the space character. Order here is important. Index 0 is the data on the far left of the line.
      • ipout: sql: fields: updated_at - First column name to use with datatype to use in table creation
      • ipout: sql: fields: domain - Second column name to use with datatype to use in table creation
      • ipout: sql: fields: ip_address - Third column name to use with datatype to use in table creation

Notes

The inserts per table are done in groups of 20,000 records by default. If your DB can handle more parameter binds then set a new integer limit based on this formula before using the update method: DB bind limit / Number of fields

$crime->setBindingLimit(50000);
$crime->update();

The PDO was separated out so you could provide your own if needed. Change the use statement inside src/Crimeflare.php.

use \DbUpdate;