KnpGaufretteBundle/README.markdown

Gaufrette Bundle

Provides a Gaufrette integration for your Symfony projects.

About Gaufrette

Gaufrette is a PHP 5.3+ library providing a filesystem abstraction layer. This abstraction layer allows you to develop applications without needing to know where all their media files will be stored or how.

Documentation is available the official page of Gaufrette.

Installation

Prerequisites

As this bundle is an integration for Symfony of the Gaufrette library, it requires you to first install Gaufrette in a Symfony project.

Download the bundle

You can download an archive of the bundle and unpack it in the vendor/bundles/Knp/Bundle/GaufretteBundle directory of your application.

Standard Edition Style

If you are using the deps file to manage your project's dependencies, you must add the following lines to it:

[gaufrette]
    git=http://github.com/KnpLabs/Gaufrette.git

[KnpGaufretteBundle]
    git=http://github.com/KnpLabs/KnpGaufretteBundle.git
    target=/bundles/Knp/Bundle/GaufretteBundle

Composer Style

This bundle can be installed using composer by adding the following in the require section of your composer.json file:

    "require": {
        ...
        "knplabs/knp-gaufrette-bundle": "dev-master"
    },

Git Submodule Style

If you are versioning your project with git and making changes to this bundle you can embed it as a submodule:

$ git submodule add https://github.com/KnpLabs/KnpGaufretteBundle.git vendor/bundles/Knp/Bundle/GaufretteBundle

Add the namespace in the autoloader

You must register both Gaufrette and the KnpGaufretteBundle in your autoloader: (You do not have to do this if you are using the composer autoload system.)

<?php

// app/autoload.php

$loader->registerNamespaces(array(
    'Knp\Bundle'                => __DIR__.'/../vendor/bundles',
    'Gaufrette'                 => __DIR__.'/../vendor/gaufrette/src',
    // ...
));

Register the bundle

You must register the bundle in your kernel:

<?php

// app/AppKernel.php

public function registerBundles()
{
    $bundles = array(

        // ...

        new Knp\Bundle\GaufretteBundle\KnpGaufretteBundle()
    );

    // ...
}

Configuration

The Gaufrette bundle allows you to declare your filesystems as services without having to reach into the famous "Service Container". Indeed, you can do it with the configuration!

The configuration of the Gaufrette bundle is divided into two parts: the adapters and the filesystems.

Configuring the Adapters

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            local:
                directory: /path/to/my/filesystem

The defined adapters are then used to create the filesystems.

Configuring the Filesystems

# app/config/config.yml
knp_gaufrette:
    adapters:
        # ...
    filesystems:
        bar:
            adapter:    foo
            alias:      foo_filesystem

Each defined filesystem must have an adapter with its value set to an adapter's key. The filesystem defined above will result in a service with id gaufrette.bar_filesystem. The alias parameter allows us to define an alias for it (foo_filesystem in this case).

The filesystem map

You can access all declared filesystems through the map service. In the previous exemple, we declared a bar filesystem:

$container->get('knp_gaufrette.filesystem_map')->get('bar');

Returns the bar instance of Gaufrette\Filesystem.

Adapters Reference

Local Adapter (local)

A simple local filesystem based adapter.

Parameters

• directory The directory of the filesystem (required)
• create Whether to create the directory if it does not exist (default true)

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            local:
                directory:  /path/to/my/filesystem
                create:     true

Safe Local Adapter (safe_local)

Almost as simple as the local adapter, but it encodes key to avoid having to deal with the directories structure.

Parameters

• directory The directory of the filesystem (required)
• create Whether to create the directory if it does not exist (default true)

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            safe_local:
                directory:  /path/to/my/filesystem
                create:     true

Service (service)

Allows you to use a user defined adapter service.

Parameters

• id The id of the service (required)

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            service:
                id:     my.adapter.service

In Memory (in_memory)

Adapter for test purposes, it stores files in an internal array.

Parameters

• files An array of files (optional)

The files is an array of files where each file is a sub-array having the content, checksum and mtime optional keys.

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            in_memory:
                files:
                    'file1.txt':    ~
                    'file2.txt':
                        content:    Some content
                        checksum:   abc1efg2hij3
                        mtime:      123456890123

GridFS (gridfs)

Adapter that allows you to use a MongoDB GridFS for storing files.

Parameters

• mongogridfs_id The id of the service that provides MongoGridFS object instance for adapter (required)

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            gridfs:
                mongogridfs_id: acme_test.gridfs

In your AcmeTestBundle, add following service definitions:

# src/Acme/TestBundle/Resources/config/services.yml
parameters:
    acme_test.mongo.server: "mongodb://localhost:27017"
    acme_test.mongo.options:
        connect: true
    acme_test.mongodb.name: "test_database"
    acme_test.gridfs.prefix: "fs" #Default
services:
    acme_test.mongo:
        class: Mongo
        arguments: [%acme_test.mongo.server%, %acme_test.mongo.options%]
    acme_test.mongodb:
        class: MongoDB
        arguments: [@acme_test.mongo, %acme_test.mongodb.name%]
    acme_test.gridfs:
        class: MongoGridFS
        arguments: [@acme_test.mongodb, %acme_test.gridfs.prefix%]

Note that it is possible to prepare MongoGridFS service any way you like. This is just one way to do it.

MogileFS (mogilefs)

Adapter that allows you to use MogileFS for storing files.

Parameters

• domain MogileFS domain
• hosts Available trackers

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            mogilefs:
                domain: foobar
                hosts: ["192.168.0.1:7001", "192.168.0.2:7001"]

Ftp (ftp)

Adapter for FTP.

Parameters

• directory The remote directory (required)
• host FTP host (required)
• username FTP username (default null)
• password FTP password (default null)
• port FTP port (default 21)
• passive FTP passive mode (default false)
• create Whether to create the directory if it does not exist (default false)
• mode FTP transfer mode (defaut FTP_ASCII)

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            ftp:
                host: example.com
                username: user
                password: pass
                directory: /example/ftp
                create: true
                mode: FTP_BINARY

Sftp (sftp)

Adapter for SFTP (SSH-FTP).

Parameters

• sftp_id The id of the service that provides SFTP access.
• directory The remote directory (default null).
• create Whether to create the directory if it does not exist (default false).

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            sftp:
                sftp_id: acme_test.sftp
                directory: /example/sftp
                create: true

In your AcmeTestBundle, add following service definitions:

# src/Acme/TestBundle/Resources/config/services.yml
parameters:
    acme_test.ssh.host: my_host_name
    acme_test.ssh.username: user_name
    acme_test.ssh.password: some_secret

services:
    acme_test.ssh.configuration:
        class: Ssh\Configuration
        arguments: [%acme_test.ssh.host%]

    acme_test.ssh.authentication:
        class: Ssh\Authentication\Password
        arguments: [%acme_test.ssh.username%, %acme_test.ssh.password%]

    acme_test.ssh.session:
        class: Ssh\Session
        arguments: [@acme_test.ssh.configuration, @acme_test.ssh.authentication]

    acme_test.sftp:
        class: Ssh\Sftp
        arguments: [@acme_test.ssh.session]

Apc (apc)

Adapter for APC.

A non-persistent adapter, use it in the dev environment, in demo sites, ...

Parameters

• prefix The prefix to this filesystem (APC 'namespace', it is recommended that this end in a dot '.') (required)
• ttl Time to live (default 0)

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            apc:
                prefix: APC 'namespace' prefix
                ttl: 0

Open Cloud (opencloud)

Adapter for OpenCloud (Rackspace)

Parameters

• object_store_id: the id of the object store service
• container_name: the name of the container to use
• create_container: if true will create the container if it doesn't exist (default false)
• detect_content_type: if true will detect the content type for each file (default true)

Defining services

To use the OpenCloud adapter you should provide a valid ObjectStore instance. You can retrieve an instance through the OpenCloud\OpenStack or OpenCloud\Rackspace instances. We can provide a comprehensive configuration through the Symfony DIC configuration.

Define OpenStack/Rackspace service

Generic OpenStack:

# app/config/config.yml
services:
    opencloud.connection:
        class: OpenCloud\OpenStack
        arguments:
          - %openstack_identity_url%
          - {username: %openstack_username%, password: %openstack_password%, tenantName: %openstack_tenant_name%}

HPCloud:

# app/config/config.yml
services:
    opencloud.connection.hpcloud:
        class: OpenCloud\OpenStack
        arguments:
          - 'https://region-a.geo-1.identity.hpcloudsvc.com:123456/v2.0/' // check https://account.hpcloud.com/account/api_keys for identities urls
          - {username: %hpcloud_username%, password: %hpcloud_password%, tenantName: %hpcloud_tenant_name%}

The username and password are your login credentials, not the api key. Your tenantName is your Project Name on the api keys page.

Rackspace:

# app/config/config.yml
services:
    opencloud.connection.rackspace:
        class: OpenCloud\Rackspace
        arguments:
          - 'https://identity.api.rackspacecloud.com/v2.0/'
          - {username: %rackspace_username%, apiKey: %rackspace_apikey%}

Define ObjectStore service

HPCloud:

# app/config/config.yml
services:
    opencloud.object_store:
        class: OpenCloud\ObjectStoreBase
        factory_service: opencloud.connection.hpcloud
        factory_method: ObjectStore
        arguments:
          - 'Object Storage' # Object storage type 
          - 'region-a.geo-1' # Object storage region
          - 'publicURL' # url type

Rackspace:

# app/config/config.yml
services:
    opencloud.object_store:
        class: OpenCloud\ObjectStoreBase
        factory_service: opencloud.connection
        factory_method: ObjectStore
        arguments:
          - 'cloudFiles' # Object storage type 
          - 'DFW' # Object storage region
          - 'publicURL' # url type

Example

Finally you can define your adapter in configuration:

# app/config/config.yml
knp_gaufrette:
    adapters:
        foo:
            opencloud:
                object_store_id: opencloud.object_store
                container_name: foo

Cache (cache)

Adapter which allows you to cache other adapters

Parameters

• source The source adapter that must be cached (required)
• cache The adapter used to cache the source (required)
• ttl Time to live (default 0)
• serializer The adapter used to cache serializations (default null)

Example

# app/config/config.yml
knp_gaufrette:
    adapters:
        media_ftp:
            ftp:
                host: example.com
                username: user
                password: pass
                directory: /example/ftp
                create: true
                mode: FTP_BINARY
        media_apc:
            apc:
                prefix: APC 'namespace' prefix
                ttl: 0
        media_cache:
            cache:
                source: media_ftp
                cache: media_apc
                ttl: 7200
    filesystems:
        media:
            adapter: media_cache

Stream Wrapper

The stream_wrapper settings allow you to register filesystems with a specified domain and then use as a stream wrapper anywhere in your code like: gaufrette://domain/file.txt

Parameters

• protocol The protocol name like gaufrette://… (default gaufrette)
• filesystem An array that contains filesystems that you want to register to this stream_wrapper. If you set array keys these will be used as an alias for the filesystem (see examples below) (default all filesystems without aliases)

Example 1

Using default settings, the protocol is "gaufrette" and all filesystems will be served

# app/config/config.yml
knp_gaufrette:
    adapters:
        backup: #...
        amazon: #...

    filesystems:
        backup1:
            adapter: backup
        amazonS3:
            adapter: amazon

    stream_wrapper: ~

gaufrette://backup1/...
gaufrette://amazonS3/...

Example 2

We define the protocol as "data", all filesystem will still be served (by default)

# app/config/config.yml
knp_gaufrette:
    filesystems:
        #...

    stream_wrapper:
        protocol: data

data://backup1/...
data://amazonS3/...

Example 3

We define the protocol as data and define which filesystem(s) will be available

# app/config/config.yml
knp_gaufrette:
    filesystems:
        #...

    stream_wrapper:
        protocol: data
        filesystems:
            - backup1

data://backup1/... (works since it is defined above)
data://amazonS3/... (will not be available)

Example 4

We define the protocol as data and define which filesystems will be available using array keys to set domain aliases

# app/config/config.yml
knp_gaufrette:
    filesystems:
        #...

    stream_wrapper:
        protocol: data
        filesystems:
            backup: backup1
            pictures: amazonS3

data://backup/...
data://pictures/...