PHP SDK implementation (#316)

## Type of change

Implemented PHP library that wraps native C library and exposed its
commands through BitwardenClient class.

```
- [ ] Bug fix
- [ x] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
- [ ] Build/deploy pipeline (DevOps)
- [ ] Other
```

## Objective

To provide PHP interface for bitwarden c library files by which you can
use PHP code to work with Bitwarden API. It implements CRUD requests for
projects and secrets.

## Code changes

TODO: Updating package repository - will hosted on Packagist.

---------

Co-authored-by: Daniel García <[email protected]>

.github/workflows/publish-php.yml

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+name: Publish PHP SDK
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build_rust:
+    uses: ./.github/workflows/build-rust-cross-platform.yml
+
+  setup_php:
+    name: Setup PHP
+    runs-on: ubuntu-22.04
+    needs:
+      - build_rust
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+
+      - name: Setup PHP with PECL extension
+        uses: shivammathur/setup-php@7fdd3ece872ec7ec4c098ae5ab7637d5e0a96067 # 2.26.0
+        with:
+          php-version: "8.0"
+          tools: composer
+          extensions: ext-ffi
+
+      - name: Composer check
+        run: |
+          composer install
+          composer validate
+        working-directory: languages/php/
+
+      - name: Download x86_64-apple-darwin files
+        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
+        with:
+          name: libbitwarden_c_files-x86_64-apple-darwin
+          path: temp/macos-x64
+
+      - name: Download aarch64-apple-darwin files
+        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
+        with:
+          name: libbitwarden_c_files-aarch64-apple-darwin
+          path: temp/macos-arm64
+
+      - name: Download x86_64-unknown-linux-gnu files
+        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
+        with:
+          name: libbitwarden_c_files-x86_64-unknown-linux-gnu
+          path: temp/ubuntu-x64
+
+      - name: Download x86_64-pc-windows-msvc files
+        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
+        with:
+          name: libbitwarden_c_files-x86_64-pc-windows-msvc
+          path: temp/windows-x64
+
+      - name: Copy lib files
+        run: |
+          mkdir -p languages/php/src/lib/macos-arm64
+          mkdir -p languages/php/src/lib/ubuntu-x64
+          mkdir -p languages/php/src/lib/macos-x64
+          mkdir -p languages/php/src/lib/windows-x64
+
+          platforms=("macos-arm64" "ubuntu-x64" "macos-x64" "windows-x64")
+          files=("libbitwarden_c.dylib" "libbitwarden_c.so" "libbitwarden_c.dylib" "bitwarden_c.dll")
+
+          for ((i=0; i<${#platforms[@]}; i++)); do
+            cp "temp/${platforms[$i]}/${files[$i]}" "languages/php/src/lib/${platforms[$i]}/${files[$i]}"
+          done
+
+      - name: Publish version
+        run: curl -XPOST -H'content-type:application/json' 'https://packagist.org/api/update-package?username=malirobot&apiToken=${{secrets.PACKAGIST_KEY}}' -d'{"repository":{"url":"https://packagist.org/packages/bitwarden/sdk"}}'
+        working-directory: languages/php/

languages/php/.gitignore

@@ -0,0 +1,2 @@
+.DS_Store
+vendor

languages/php/README.md

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+# Bitwarden Secrets Manager SDK wrapper for PHP
+
+PHP bindings for interacting with the [Bitwarden Secrets Manager]. This is a beta release and might be missing some functionality.
+Supported are CRUD operations on project and secret entities.
+
+## Installation
+
+Requirements:
+- PHP >= 8.0
+- Composer
+- Bitwarden C libraries which you can generate using BitwardenSDK and following instructions in its readme (requires Rust). https://github.com/bitwarden/sdk
+If you are not using the standalone version of this library, file will be placed in `target/debug` folder if you are using from BitwardenSDK repository.
+- Access token for the Bitwarden account
+
+
+## Usage
+
+To interact with the client first you need to obtain the access token from Bitwarden.
+You can then initialize BitwardenSettings passing $api_url and $identity_url if needed. These parameteres are
+optional and if they are not defined, BitwardenSettings instance will try to get these values from ENV, and
+if they are not defined there as well, it will use defaults: `https://api.bitwarden.com` as api_url and
+`https://identity.bitwarden.com` as identity_url. You can also pass device type as argument but that is entirely
+optional.
+
+Passing BitwardenSettings instance to BitwardenClient will initialize it. Before using the client you must
+be authorized by calling the access_token_login method passing your Bitwarden access token to it.
+
+
+```php
+$access_token = '<your token here>';
+$api_url = "<api url>";
+$identity_url = "<identity url>";
+$bitwarden_settings = new \Bitwarden\Sdk\BitwardenSettings($api_url, $identity_url);
+
+$bitwarden_client = new \Bitwarden\Sdk\BitwardenClient($bitwarden_settings);
+$bitwarden_client->access_token_login($access_token);
+```
+
+After successful authorization you can interact with client to manage your projects and secrets.
+```php
+$organization_id = "<your organization id here>";
+
+$bitwarden_client = new \Bitwarden\Sdk\BitwardenClient($bitwarden_settings);
+$res = $bitwarden_client->access_token_login($access_token);
+
+// create project
+$name = "PHP project"
+$res = $bitwarden_client->projects->create($name, $organization_id);
+$project_id = $res->id;
+
+// get project
+$res = $bitwarden_client->projects->get($project_id);
+
+// list projects
+$res = $bitwarden_client->projects->list($organization_id);
+
+// update project
+$name = "Updated PHP project"
+$res = $bitwarden_client->projects->put($project_id, $name, $organization_id);
+
+// get secret
+$res = $bitwarden_client->secrets->get($secret_id);
+
+// list secrets
+$res = $bitwarden_client->secrets->list($organization_id);
+
+// delete project
+$res = $bitwarden_client->projects->delete([$project_id]);
+
+```
+
+Similarly, you interact with secrets:
+```php
+$organization_id = "<your organization id here>";
+
+// create secret
+$key = "AWS secret key";
+$note = "Private account";
+$secret = "76asaj,Is_)"
+$res = $bitwarden_client->secrets->create($key, $note, $organization_id, [$project_id], $secret);
+$secret_id = $res->id;
+
+// get secret
+$res = $bitwarden_sdk->secrets->get($secret_id);
+
+// list secrets
+$res = $bitwarden_client->secrets->list($organization_id);
+
+// update secret
+$note = "Updated account";
+$key = "AWS private updated"
+$secret = "7uYTE,:Aer"
+$res = $bitwarden_client->secrets->update($secret_id, $key, $note, $organization_id, [$project_id], $secret);
+
+// delete secret
+$res = $bitwarden_sdk->secrets->delete([$secret_id]);
+```
+
+
+[Bitwarden Secrets Manager]: https://bitwarden.com/products/secrets-manager/

languages/php/composer.json

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+{
+  "name": "bitwarden/sdk",
+  "description": "PHP bindings for interacting with the Bitwarden Secrets Manager. This is a beta release and might be missing some functionality.",
+  "type": "library",
+  "keywords": ["bitwarden","sdk","password-manager"],
+  "homepage": "https://github.com/bitwarden/sdk",
+  "require": {
+    "php": "^8.0",
+    "swaggest/json-schema": "^0.12.42",
+    "ext-ffi": "*"
+  },
+  "autoload": {
+    "psr-4": {
+      "Bitwarden\\Sdk\\": "src/"
+    }
+  },
+  "authors": [
+    {
+      "name": "Bitwarden Inc."
+    }
+  ]
+}