Add PHP wrapper, use header for right platform for PHP & Swift, simplify Swift Windows fix

20 files changed, 2476 insertions, 20 deletions

diff --git a/exports/.gitignore b/exports/.gitignore
index f916bcd..63ea916 100644
--- a/exports/.gitignore
+++ b/exports/.gitignore
@@ -1,2 +1 @@
 /*/
-*.h
diff --git a/exports/Makefile b/exports/Makefile
index 9664144..b3dc3db 100644
--- a/exports/Makefile
+++ b/exports/Makefile
@@ -19,7 +19,7 @@ build: $(GOOS)/$(GOARCH)/$(LIB_PREFIX)eduvpn_verify$(LIB_SUFFIX)
 
 $(GOOS)/$(GOARCH)/$(LIB_PREFIX)eduvpn_verify$(LIB_SUFFIX): exports.go ../verify.go
 	CGO_ENABLED=1 GOOS=$(GOOS) GOARCH=$(GOARCH) go build -o $@ -buildmode=c-shared $<
-	cp $(GOOS)/$(GOARCH)/$(LIB_PREFIX)eduvpn_verify.h ./eduvpn_verify.h
+	mv $(GOOS)/$(GOARCH)/$(LIB_PREFIX)eduvpn_verify.h $(GOOS)/$(GOARCH)/eduvpn_verify.h || true
 
 copy-to: $(GOOS)/$(GOARCH)/$(LIB_PREFIX)eduvpn_verify$(LIB_SUFFIX)
 	install $< -Dt "$(COPY_TARGET)"
diff --git a/wrappers/php/.gitignore b/wrappers/php/.gitignore
new file mode 100644
index 0000000..4a56e6c
--- /dev/null
+++ b/wrappers/php/.gitignore
@@ -0,0 +1,4 @@
+/vendor/
+composer.phar
+.phpunit*
+*.h
diff --git a/wrappers/php/Makefile b/wrappers/php/Makefile
new file mode 100644
index 0000000..bab4305
--- /dev/null
+++ b/wrappers/php/Makefile
@@ -0,0 +1,41 @@
+.PHONY: install-header test install-dev-dependencies clean
+
+ifneq (clean,$(MAKECMDGOALS))
+GOOS      != go env GOHOSTOS
+GOARCH    != go env GOHOSTARCH
+
+export PATH := $(abspath vendor/bin):$(PATH)
+
+ifeq (Windows_NT,$(OS))
+export PATH := $(abspath ../../exports/$(GOOS)/$(GOARCH)):$(PATH)
+else
+export LD_LIBRARY_PATH := $(abspath ../../exports/$(GOOS)/$(GOARCH)):$(LD_LIBRARY_PATH)
+endif
+endif
+
+install-header:
+	$(MAKE) -C ../../exports
+	mkdir -p src/headers
+	sed --null-data \
+		-e 's/DO NOT EDIT/Modified for PHP/' \
+		-e 's/__SIZE_TYPE__/size_t/g' \
+		-e 's/[^\n]*_Complex[^\n]*//g' \
+		-e 's/#ifdef __cplusplus[^#]*#endif//g' \
+		-e 's/^/#define FFI_LIB "eduvpn_verify"\n\n/' \
+		"../../exports/$(GOOS)/$(GOARCH)/eduvpn_verify.h" > src/headers/eduvpn_verify_php.h
+
+test: install-header install-dev-dependencies
+	phpunit
+
+install-dev-dependencies:
+	if command -v composer; then \
+		composer install && composer check-platform-reqs; \
+	elif command -v composer.phar; then \
+		composer.phar install && composer.phar check-platform-reqs; \
+	else \
+		./composer.phar install && ./composer.phar check-platform-reqs || \
+		./composer install && ./composer check-platform-reqs; \
+	fi
+
+clean:
+	rm -rf vendor/ .phpunit* src/headers/*.h
diff --git a/wrappers/php/README.md b/wrappers/php/README.md
new file mode 100644
index 0000000..776c0ac
--- /dev/null
+++ b/wrappers/php/README.md
@@ -0,0 +1,29 @@
+# PHP Wrapper
+
+## Requirements
+
+You will need to install [PHP](https://www.php.net/downloads) 7.4 or later. For testing, you can use dependency
+manager [Composer](https://getcomposer.org/doc/00-intro.md) to download PHPUnit.
+
+Activate the [FFI](https://www.php.net/manual/en/ffi.setup.php) extension (Composer will also warn if you do not have it
+enabled).
+
+## Test etc.
+
+Test (also installs PHPUnit using Composer and builds shared Go library for current platform):
+
+```shell
+make test
+```
+
+Only build shared library and copy modified C header for the current platform to the right directory:
+
+```shell
+make install-header
+```
+
+Or for the specified platform:
+
+```shell
+make install-header GOOS=windows GOARCH=amd64
+```
diff --git a/wrappers/php/composer.json b/wrappers/php/composer.json
new file mode 100644
index 0000000..ddc70ec
--- /dev/null
+++ b/wrappers/php/composer.json
@@ -0,0 +1,21 @@
+{
+	"name": "eduvpn/common",
+	"type": "library",
+	"require-dev": {
+		"phpunit/phpunit": "^9.5"
+	},
+	"autoload": {
+		"psr-4": {
+			"EduVpn\\Common\\": "src/"
+		}
+	},
+	"require": {
+		"php": ">=7.4",
+		"ext-ffi": "*"
+	},
+	"config": {
+		"platform": {
+			"php": "7.4.0"
+		}
+	}
+}
diff --git a/wrappers/php/composer.lock b/wrappers/php/composer.lock
new file mode 100644
index 0000000..9555d16
--- /dev/null
+++ b/wrappers/php/composer.lock
@@ -0,0 +1,2118 @@
+{
+	"_readme": [
+		"This file locks the dependencies of your project to a known state",
+		"Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+		"This file is @generated automatically"
+	],
+	"content-hash": "a9c9b1e302faebe8dfab5800e35fa745",
+	"packages": [],
+	"packages-dev": [
+		{
+			"name": "doctrine/instantiator",
+			"version": "1.4.0",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/doctrine/instantiator.git",
+				"reference": "d56bf6102915de5702778fe20f2de3b2fe570b5b"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/doctrine/instantiator/zipball/d56bf6102915de5702778fe20f2de3b2fe570b5b",
+				"reference": "d56bf6102915de5702778fe20f2de3b2fe570b5b",
+				"shasum": ""
+			},
+			"require": {
+				"php": "^7.1 || ^8.0"
+			},
+			"require-dev": {
+				"doctrine/coding-standard": "^8.0",
+				"ext-pdo": "*",
+				"ext-phar": "*",
+				"phpbench/phpbench": "^0.13 || 1.0.0-alpha2",
+				"phpstan/phpstan": "^0.12",
+				"phpstan/phpstan-phpunit": "^0.12",
+				"phpunit/phpunit": "^7.0 || ^8.0 || ^9.0"
+			},
+			"type": "library",
+			"autoload": {
+				"psr-4": {
+					"Doctrine\\Instantiator\\": "src/Doctrine/Instantiator/"
+				}
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"MIT"
+			],
+			"authors": [
+				{
+					"name": "Marco Pivetta",
+					"email": "ocramius@gmail.com",
+					"homepage": "https://ocramius.github.io/"
+				}
+			],
+			"description": "A small, lightweight utility to instantiate objects in PHP without invoking their constructors",
+			"homepage": "https://www.doctrine-project.org/projects/instantiator.html",
+			"keywords": [
+				"constructor",
+				"instantiate"
+			],
+			"support": {
+				"issues": "https://github.com/doctrine/instantiator/issues",
+				"source": "https://github.com/doctrine/instantiator/tree/1.4.0"
+			},
+			"funding": [
+				{
+					"url": "https://www.doctrine-project.org/sponsorship.html",
+					"type": "custom"
+				},
+				{
+					"url": "https://www.patreon.com/phpdoctrine",
+					"type": "patreon"
+				},
+				{
+					"url": "https://tidelift.com/funding/github/packagist/doctrine%2Finstantiator",
+					"type": "tidelift"
+				}
+			],
+			"time": "2020-11-10T18:47:58+00:00"
+		},
+		{
+			"name": "myclabs/deep-copy",
+			"version": "1.10.2",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/myclabs/DeepCopy.git",
+				"reference": "776f831124e9c62e1a2c601ecc52e776d8bb7220"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/776f831124e9c62e1a2c601ecc52e776d8bb7220",
+				"reference": "776f831124e9c62e1a2c601ecc52e776d8bb7220",
+				"shasum": ""
+			},
+			"require": {
+				"php": "^7.1 || ^8.0"
+			},
+			"replace": {
+				"myclabs/deep-copy": "self.version"
+			},
+			"require-dev": {
+				"doctrine/collections": "^1.0",
+				"doctrine/common": "^2.6",
+				"phpunit/phpunit": "^7.1"
+			},
+			"type": "library",
+			"autoload": {
+				"psr-4": {
+					"DeepCopy\\": "src/DeepCopy/"
+				},
+				"files": [
+					"src/DeepCopy/deep_copy.php"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"MIT"
+			],
+			"description": "Create deep copies (clones) of your objects",
+			"keywords": [
+				"clone",
+				"copy",
+				"duplicate",
+				"object",
+				"object graph"
+			],
+			"support": {
+				"issues": "https://github.com/myclabs/DeepCopy/issues",
+				"source": "https://github.com/myclabs/DeepCopy/tree/1.10.2"
+			},
+			"funding": [
+				{
+					"url": "https://tidelift.com/funding/github/packagist/myclabs/deep-copy",
+					"type": "tidelift"
+				}
+			],
+			"time": "2020-11-13T09:40:50+00:00"
+		},
+		{
+			"name": "nikic/php-parser",
+			"version": "v4.13.2",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/nikic/PHP-Parser.git",
+				"reference": "210577fe3cf7badcc5814d99455df46564f3c077"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/210577fe3cf7badcc5814d99455df46564f3c077",
+				"reference": "210577fe3cf7badcc5814d99455df46564f3c077",
+				"shasum": ""
+			},
+			"require": {
+				"ext-tokenizer": "*",
+				"php": ">=7.0"
+			},
+			"require-dev": {
+				"ircmaxell/php-yacc": "^0.0.7",
+				"phpunit/phpunit": "^6.5 || ^7.0 || ^8.0 || ^9.0"
+			},
+			"bin": [
+				"bin/php-parse"
+			],
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "4.9-dev"
+				}
+			},
+			"autoload": {
+				"psr-4": {
+					"PhpParser\\": "lib/PhpParser"
+				}
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Nikita Popov"
+				}
+			],
+			"description": "A PHP parser written in PHP",
+			"keywords": [
+				"parser",
+				"php"
+			],
+			"support": {
+				"issues": "https://github.com/nikic/PHP-Parser/issues",
+				"source": "https://github.com/nikic/PHP-Parser/tree/v4.13.2"
+			},
+			"time": "2021-11-30T19:35:32+00:00"
+		},
+		{
+			"name": "phar-io/manifest",
+			"version": "2.0.3",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/phar-io/manifest.git",
+				"reference": "97803eca37d319dfa7826cc2437fc020857acb53"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/phar-io/manifest/zipball/97803eca37d319dfa7826cc2437fc020857acb53",
+				"reference": "97803eca37d319dfa7826cc2437fc020857acb53",
+				"shasum": ""
+			},
+			"require": {
+				"ext-dom": "*",
+				"ext-phar": "*",
+				"ext-xmlwriter": "*",
+				"phar-io/version": "^3.0.1",
+				"php": "^7.2 || ^8.0"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "2.0.x-dev"
+				}
+			},
+			"autoload": {
+				"classmap": [
+					"src/"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Arne Blankerts",
+					"email": "arne@blankerts.de",
+					"role": "Developer"
+				},
+				{
+					"name": "Sebastian Heuer",
+					"email": "sebastian@phpeople.de",
+					"role": "Developer"
+				},
+				{
+					"name": "Sebastian Bergmann",
+					"email": "sebastian@phpunit.de",
+					"role": "Developer"
+				}
+			],
+			"description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
+			"support": {
+				"issues": "https://github.com/phar-io/manifest/issues",
+				"source": "https://github.com/phar-io/manifest/tree/2.0.3"
+			},
+			"time": "2021-07-20T11:28:43+00:00"
+		},
+		{
+			"name": "phar-io/version",
+			"version": "3.1.0",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/phar-io/version.git",
+				"reference": "bae7c545bef187884426f042434e561ab1ddb182"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/phar-io/version/zipball/bae7c545bef187884426f042434e561ab1ddb182",
+				"reference": "bae7c545bef187884426f042434e561ab1ddb182",
+				"shasum": ""
+			},
+			"require": {
+				"php": "^7.2 || ^8.0"
+			},
+			"type": "library",
+			"autoload": {
+				"classmap": [
+					"src/"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Arne Blankerts",
+					"email": "arne@blankerts.de",
+					"role": "Developer"
+				},
+				{
+					"name": "Sebastian Heuer",
+					"email": "sebastian@phpeople.de",
+					"role": "Developer"
+				},
+				{
+					"name": "Sebastian Bergmann",
+					"email": "sebastian@phpunit.de",
+					"role": "Developer"
+				}
+			],
+			"description": "Library for handling version information and constraints",
+			"support": {
+				"issues": "https://github.com/phar-io/version/issues",
+				"source": "https://github.com/phar-io/version/tree/3.1.0"
+			},
+			"time": "2021-02-23T14:00:09+00:00"
+		},
+		{
+			"name": "phpdocumentor/reflection-common",
+			"version": "2.2.0",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/phpDocumentor/ReflectionCommon.git",
+				"reference": "1d01c49d4ed62f25aa84a747ad35d5a16924662b"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/1d01c49d4ed62f25aa84a747ad35d5a16924662b",
+				"reference": "1d01c49d4ed62f25aa84a747ad35d5a16924662b",
+				"shasum": ""
+			},
+			"require": {
+				"php": "^7.2 || ^8.0"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-2.x": "2.x-dev"
+				}
+			},
+			"autoload": {
+				"psr-4": {
+					"phpDocumentor\\Reflection\\": "src/"
+				}
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"MIT"
+			],
+			"authors": [
+				{
+					"name": "Jaap van Otterdijk",
+					"email": "opensource@ijaap.nl"
+				}
+			],
+			"description": "Common reflection classes used by phpdocumentor to reflect the code structure",
+			"homepage": "http://www.phpdoc.org",
+			"keywords": [
+				"FQSEN",
+				"phpDocumentor",
+				"phpdoc",
+				"reflection",
+				"static analysis"
+			],
+			"support": {
+				"issues": "https://github.com/phpDocumentor/ReflectionCommon/issues",
+				"source": "https://github.com/phpDocumentor/ReflectionCommon/tree/2.x"
+			},
+			"time": "2020-06-27T09:03:43+00:00"
+		},
+		{
+			"name": "phpdocumentor/reflection-docblock",
+			"version": "5.3.0",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
+				"reference": "622548b623e81ca6d78b721c5e029f4ce664f170"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/622548b623e81ca6d78b721c5e029f4ce664f170",
+				"reference": "622548b623e81ca6d78b721c5e029f4ce664f170",
+				"shasum": ""
+			},
+			"require": {
+				"ext-filter": "*",
+				"php": "^7.2 || ^8.0",
+				"phpdocumentor/reflection-common": "^2.2",
+				"phpdocumentor/type-resolver": "^1.3",
+				"webmozart/assert": "^1.9.1"
+			},
+			"require-dev": {
+				"mockery/mockery": "~1.3.2",
+				"psalm/phar": "^4.8"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "5.x-dev"
+				}
+			},
+			"autoload": {
+				"psr-4": {
+					"phpDocumentor\\Reflection\\": "src"
+				}
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"MIT"
+			],
+			"authors": [
+				{
+					"name": "Mike van Riel",
+					"email": "me@mikevanriel.com"
+				},
+				{
+					"name": "Jaap van Otterdijk",
+					"email": "account@ijaap.nl"
+				}
+			],
+			"description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
+			"support": {
+				"issues": "https://github.com/phpDocumentor/ReflectionDocBlock/issues",
+				"source": "https://github.com/phpDocumentor/ReflectionDocBlock/tree/5.3.0"
+			},
+			"time": "2021-10-19T17:43:47+00:00"
+		},
+		{
+			"name": "phpdocumentor/type-resolver",
+			"version": "1.5.1",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/phpDocumentor/TypeResolver.git",
+				"reference": "a12f7e301eb7258bb68acd89d4aefa05c2906cae"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/a12f7e301eb7258bb68acd89d4aefa05c2906cae",
+				"reference": "a12f7e301eb7258bb68acd89d4aefa05c2906cae",
+				"shasum": ""
+			},
+			"require": {
+				"php": "^7.2 || ^8.0",
+				"phpdocumentor/reflection-common": "^2.0"
+			},
+			"require-dev": {
+				"ext-tokenizer": "*",
+				"psalm/phar": "^4.8"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-1.x": "1.x-dev"
+				}
+			},
+			"autoload": {
+				"psr-4": {
+					"phpDocumentor\\Reflection\\": "src"
+				}
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"MIT"
+			],
+			"authors": [
+				{
+					"name": "Mike van Riel",
+					"email": "me@mikevanriel.com"
+				}
+			],
+			"description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
+			"support": {
+				"issues": "https://github.com/phpDocumentor/TypeResolver/issues",
+				"source": "https://github.com/phpDocumentor/TypeResolver/tree/1.5.1"
+			},
+			"time": "2021-10-02T14:08:47+00:00"
+		},
+		{
+			"name": "phpspec/prophecy",
+			"version": "v1.15.0",
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+			"time": "2020-10-26T13:14:26+00:00"
+		},
+		{
+			"name": "sebastian/recursion-context",
+			"version": "4.0.4",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/sebastianbergmann/recursion-context.git",
+				"reference": "cd9d8cf3c5804de4341c283ed787f099f5506172"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/cd9d8cf3c5804de4341c283ed787f099f5506172",
+				"reference": "cd9d8cf3c5804de4341c283ed787f099f5506172",
+				"shasum": ""
+			},
+			"require": {
+				"php": ">=7.3"
+			},
+			"require-dev": {
+				"phpunit/phpunit": "^9.3"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "4.0-dev"
+				}
+			},
+			"autoload": {
+				"classmap": [
+					"src/"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Sebastian Bergmann",
+					"email": "sebastian@phpunit.de"
+				},
+				{
+					"name": "Jeff Welch",
+					"email": "whatthejeff@gmail.com"
+				},
+				{
+					"name": "Adam Harvey",
+					"email": "aharvey@php.net"
+				}
+			],
+			"description": "Provides functionality to recursively process PHP variables",
+			"homepage": "http://www.github.com/sebastianbergmann/recursion-context",
+			"support": {
+				"issues": "https://github.com/sebastianbergmann/recursion-context/issues",
+				"source": "https://github.com/sebastianbergmann/recursion-context/tree/4.0.4"
+			},
+			"funding": [
+				{
+					"url": "https://github.com/sebastianbergmann",
+					"type": "github"
+				}
+			],
+			"time": "2020-10-26T13:17:30+00:00"
+		},
+		{
+			"name": "sebastian/resource-operations",
+			"version": "3.0.3",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/sebastianbergmann/resource-operations.git",
+				"reference": "0f4443cb3a1d92ce809899753bc0d5d5a8dd19a8"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/sebastianbergmann/resource-operations/zipball/0f4443cb3a1d92ce809899753bc0d5d5a8dd19a8",
+				"reference": "0f4443cb3a1d92ce809899753bc0d5d5a8dd19a8",
+				"shasum": ""
+			},
+			"require": {
+				"php": ">=7.3"
+			},
+			"require-dev": {
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+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "3.0-dev"
+				}
+			},
+			"autoload": {
+				"classmap": [
+					"src/"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Sebastian Bergmann",
+					"email": "sebastian@phpunit.de"
+				}
+			],
+			"description": "Provides a list of PHP built-in functions that operate on resources",
+			"homepage": "https://www.github.com/sebastianbergmann/resource-operations",
+			"support": {
+				"issues": "https://github.com/sebastianbergmann/resource-operations/issues",
+				"source": "https://github.com/sebastianbergmann/resource-operations/tree/3.0.3"
+			},
+			"funding": [
+				{
+					"url": "https://github.com/sebastianbergmann",
+					"type": "github"
+				}
+			],
+			"time": "2020-09-28T06:45:17+00:00"
+		},
+		{
+			"name": "sebastian/type",
+			"version": "2.3.4",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/sebastianbergmann/type.git",
+				"reference": "b8cd8a1c753c90bc1a0f5372170e3e489136f914"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/sebastianbergmann/type/zipball/b8cd8a1c753c90bc1a0f5372170e3e489136f914",
+				"reference": "b8cd8a1c753c90bc1a0f5372170e3e489136f914",
+				"shasum": ""
+			},
+			"require": {
+				"php": ">=7.3"
+			},
+			"require-dev": {
+				"phpunit/phpunit": "^9.3"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "2.3-dev"
+				}
+			},
+			"autoload": {
+				"classmap": [
+					"src/"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Sebastian Bergmann",
+					"email": "sebastian@phpunit.de",
+					"role": "lead"
+				}
+			],
+			"description": "Collection of value objects that represent the types of the PHP type system",
+			"homepage": "https://github.com/sebastianbergmann/type",
+			"support": {
+				"issues": "https://github.com/sebastianbergmann/type/issues",
+				"source": "https://github.com/sebastianbergmann/type/tree/2.3.4"
+			},
+			"funding": [
+				{
+					"url": "https://github.com/sebastianbergmann",
+					"type": "github"
+				}
+			],
+			"time": "2021-06-15T12:49:02+00:00"
+		},
+		{
+			"name": "sebastian/version",
+			"version": "3.0.2",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/sebastianbergmann/version.git",
+				"reference": "c6c1022351a901512170118436c764e473f6de8c"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/sebastianbergmann/version/zipball/c6c1022351a901512170118436c764e473f6de8c",
+				"reference": "c6c1022351a901512170118436c764e473f6de8c",
+				"shasum": ""
+			},
+			"require": {
+				"php": ">=7.3"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "3.0-dev"
+				}
+			},
+			"autoload": {
+				"classmap": [
+					"src/"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Sebastian Bergmann",
+					"email": "sebastian@phpunit.de",
+					"role": "lead"
+				}
+			],
+			"description": "Library that helps with managing the version number of Git-hosted PHP projects",
+			"homepage": "https://github.com/sebastianbergmann/version",
+			"support": {
+				"issues": "https://github.com/sebastianbergmann/version/issues",
+				"source": "https://github.com/sebastianbergmann/version/tree/3.0.2"
+			},
+			"funding": [
+				{
+					"url": "https://github.com/sebastianbergmann",
+					"type": "github"
+				}
+			],
+			"time": "2020-09-28T06:39:44+00:00"
+		},
+		{
+			"name": "symfony/polyfill-ctype",
+			"version": "v1.23.0",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/symfony/polyfill-ctype.git",
+				"reference": "46cd95797e9df938fdd2b03693b5fca5e64b01ce"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/46cd95797e9df938fdd2b03693b5fca5e64b01ce",
+				"reference": "46cd95797e9df938fdd2b03693b5fca5e64b01ce",
+				"shasum": ""
+			},
+			"require": {
+				"php": ">=7.1"
+			},
+			"suggest": {
+				"ext-ctype": "For best performance"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-main": "1.23-dev"
+				},
+				"thanks": {
+					"name": "symfony/polyfill",
+					"url": "https://github.com/symfony/polyfill"
+				}
+			},
+			"autoload": {
+				"psr-4": {
+					"Symfony\\Polyfill\\Ctype\\": ""
+				},
+				"files": [
+					"bootstrap.php"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"MIT"
+			],
+			"authors": [
+				{
+					"name": "Gert de Pagter",
+					"email": "BackEndTea@gmail.com"
+				},
+				{
+					"name": "Symfony Community",
+					"homepage": "https://symfony.com/contributors"
+				}
+			],
+			"description": "Symfony polyfill for ctype functions",
+			"homepage": "https://symfony.com",
+			"keywords": [
+				"compatibility",
+				"ctype",
+				"polyfill",
+				"portable"
+			],
+			"support": {
+				"source": "https://github.com/symfony/polyfill-ctype/tree/v1.23.0"
+			},
+			"funding": [
+				{
+					"url": "https://symfony.com/sponsor",
+					"type": "custom"
+				},
+				{
+					"url": "https://github.com/fabpot",
+					"type": "github"
+				},
+				{
+					"url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+					"type": "tidelift"
+				}
+			],
+			"time": "2021-02-19T12:13:01+00:00"
+		},
+		{
+			"name": "theseer/tokenizer",
+			"version": "1.2.1",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/theseer/tokenizer.git",
+				"reference": "34a41e998c2183e22995f158c581e7b5e755ab9e"
+			},
+			"dist": {
+				"type": "zip",
+				"url": "https://api.github.com/repos/theseer/tokenizer/zipball/34a41e998c2183e22995f158c581e7b5e755ab9e",
+				"reference": "34a41e998c2183e22995f158c581e7b5e755ab9e",
+				"shasum": ""
+			},
+			"require": {
+				"ext-dom": "*",
+				"ext-tokenizer": "*",
+				"ext-xmlwriter": "*",
+				"php": "^7.2 || ^8.0"
+			},
+			"type": "library",
+			"autoload": {
+				"classmap": [
+					"src/"
+				]
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"BSD-3-Clause"
+			],
+			"authors": [
+				{
+					"name": "Arne Blankerts",
+					"email": "arne@blankerts.de",
+					"role": "Developer"
+				}
+			],
+			"description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
+			"support": {
+				"issues": "https://github.com/theseer/tokenizer/issues",
+				"source": "https://github.com/theseer/tokenizer/tree/1.2.1"
+			},
+			"funding": [
+				{
+					"url": "https://github.com/theseer",
+					"type": "github"
+				}
+			],
+			"time": "2021-07-28T10:34:58+00:00"
+		},
+		{
+			"name": "webmozart/assert",
+			"version": "1.10.0",
+			"source": {
+				"type": "git",
+				"url": "https://github.com/webmozarts/assert.git",
+				"reference": "6964c76c7804814a842473e0c8fd15bab0f18e25"
+			},
+			"dist": {
+				"type": "zip",
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+				"reference": "6964c76c7804814a842473e0c8fd15bab0f18e25",
+				"shasum": ""
+			},
+			"require": {
+				"php": "^7.2 || ^8.0",
+				"symfony/polyfill-ctype": "^1.8"
+			},
+			"conflict": {
+				"phpstan/phpstan": "<0.12.20",
+				"vimeo/psalm": "<4.6.1 || 4.6.2"
+			},
+			"require-dev": {
+				"phpunit/phpunit": "^8.5.13"
+			},
+			"type": "library",
+			"extra": {
+				"branch-alias": {
+					"dev-master": "1.10-dev"
+				}
+			},
+			"autoload": {
+				"psr-4": {
+					"Webmozart\\Assert\\": "src/"
+				}
+			},
+			"notification-url": "https://packagist.org/downloads/",
+			"license": [
+				"MIT"
+			],
+			"authors": [
+				{
+					"name": "Bernhard Schussek",
+					"email": "bschussek@gmail.com"
+				}
+			],
+			"description": "Assertions to validate method input/output with nice error messages.",
+			"keywords": [
+				"assert",
+				"check",
+				"validate"
+			],
+			"support": {
+				"issues": "https://github.com/webmozarts/assert/issues",
+				"source": "https://github.com/webmozarts/assert/tree/1.10.0"
+			},
+			"time": "2021-03-09T10:59:23+00:00"
+		}
+	],
+	"aliases": [],
+	"minimum-stability": "stable",
+	"stability-flags": [],
+	"prefer-stable": false,
+	"prefer-lowest": false,
+	"platform": {
+		"php": ">=7.4",
+		"ext-ffi": "*"
+	},
+	"platform-dev": [],
+	"platform-overrides": {
+		"php": "7.4.0"
+	},
+	"plugin-api-version": "2.1.0"
+}
diff --git a/wrappers/php/phpunit.xml b/wrappers/php/phpunit.xml
new file mode 100644
index 0000000..74b4581
--- /dev/null
+++ b/wrappers/php/phpunit.xml
@@ -0,0 +1,7 @@
+<phpunit colors="true">
+	<testsuites>
+		<testsuite name="EduVpnCommon tests">
+			<directory suffix=".php">./tests/</directory>
+		</testsuite>
+	</testsuites>
+</phpunit>
diff --git a/wrappers/php/src/Discovery.php b/wrappers/php/src/Discovery.php
new file mode 100644
index 0000000..3ae7010
--- /dev/null
+++ b/wrappers/php/src/Discovery.php
@@ -0,0 +1,72 @@
+<?php declare(strict_types=1);
+
+namespace EduVpn\Common;
+
+use EduVpn\Common\Impl\GoSlice;
+use Error;
+use FFI;
+use InvalidArgumentException;
+
+final class Discovery
+{
+	public function __construct() { }
+
+	private static ?FFI $ffi = null;
+
+	private static function ffi(): FFI
+	{
+		if (!self::$ffi) {
+			if (!(self::$ffi = FFI::load(__DIR__ . '/headers/eduvpn_verify_php.h')))
+				throw new Error('failed to load eduvpn_verify');
+		}
+		return self::$ffi;
+	}
+
+	/**
+	 * Verifies the signature on the JSON server_list.json/organization_list.json file.
+	 * If the function returns, the signature is valid for the given file type.
+	 *
+	 * @param string $signature        .minisig signature file contents.
+	 * @param string $signedJson       Signed .json file contents.
+	 * @param string $expectedFileName The file type to be verified, one of "server_list.json" or
+	 *                                 "organization_list.json".
+	 * @param int    $minSignTime      Minimum time for signature. Should be set to at least the time in a previously
+	 *                                 retrieved file.
+	 * @return void
+	 * @throws InvalidArgumentException If expectedFileName is not one of the allowed values.
+	 * @throws VerifyException If signature verification fails.
+	 */
+	public static function verify(string $signature, string $signedJson, string $expectedFileName,
+		  int $minSignTime): void
+	{
+		$ffi              = self::ffi();
+		$signatureData    = new GoSlice($ffi, $signature);
+		$jsonData         = new GoSlice($ffi, $signedJson);
+		$expectedNameData = new GoSlice($ffi, $expectedFileName);
+
+		$result = $ffi->Verify($signatureData->slice(), $jsonData->slice(), $expectedNameData->slice(), $minSignTime);
+
+		switch ($result) {
+			case 0:
+				return;
+			case 1:
+				throw new InvalidArgumentException('unknown expected file name', $result);
+			case 2:
+				throw new InvalidSignatureException();
+			case 3:
+				throw new InvalidSignatureUnknownKeyException();
+			case 4:
+				throw new SignatureTooOldException();
+			default:
+				throw new UnknownVerifyException($result);
+		}
+	}
+
+	/** @internal Use for testing only, see Go documentation. */
+	public static function insecureTestingSetExtraKey(string $keyString): void
+	{
+		$ffi     = self::ffi();
+		$keyData = new GoSlice($ffi, $keyString);
+		$ffi->InsecureTestingSetExtraKey($keyData->slice());
+	}
+}
diff --git a/wrappers/php/src/Impl/GoSlice.php b/wrappers/php/src/Impl/GoSlice.php
new file mode 100644
index 0000000..441b460
--- /dev/null
+++ b/wrappers/php/src/Impl/GoSlice.php
@@ -0,0 +1,43 @@
+<?php declare(strict_types=1);
+
+/** @internal */
+
+namespace EduVpn\Common\Impl;
+
+use FFI;
+use FFI\CData;
+use RuntimeException;
+
+/** @internal */
+class GoSlice
+{
+	// Will be destroyed along with this GoSlice
+	private CData $cData, $slice;
+
+	public function __construct(FFI $ffi, string $data)
+	{
+		$len   = strlen($data);
+		$cData = FFI::new(FFI::arrayType(FFI::type('char'), [$len]), false);
+		if (!$cData) throw new RuntimeException('error allocating buffer');
+		$this->cData = $cData;
+		FFI::memcpy($cData, $data, $len);
+
+		$slice = $ffi->new('GoSlice');
+		if (!$slice) throw new RuntimeException('error allocating buffer');
+		$this->slice = $slice;
+		$slice->data = FFI::addr($cData); // $cData must not be destroyed while $slice is in use
+		$slice->cap  = $slice->len = $len;
+	}
+
+	public function slice(): CData
+	{
+		return $this->slice;
+	}
+
+	public function __destruct()
+	{
+		// Make sure we do not unknowingly use a slice with deallocated data
+		$this->slice->data = null;
+		$this->slice->cap  = $this->slice->len = 0;
+	}
+}
diff --git a/wrappers/php/src/InvalidSignatureException.php b/wrappers/php/src/InvalidSignatureException.php
new file mode 100644
index 0000000..d5d4164
--- /dev/null
+++ b/wrappers/php/src/InvalidSignatureException.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace EduVpn\Common;
+
+/** Signature is invalid (for the expected file type). */
+final class InvalidSignatureException extends VerifyException
+{
+	public function __construct()
+	{
+		parent::__construct('invalid signature', 2);
+	}
+}
diff --git a/wrappers/php/src/InvalidSignatureUnknownKeyException.php b/wrappers/php/src/InvalidSignatureUnknownKeyException.php
new file mode 100644
index 0000000..73a535e
--- /dev/null
+++ b/wrappers/php/src/InvalidSignatureUnknownKeyException.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace EduVpn\Common;
+
+/** Signature was created with an unknown key and has not been verified. */
+final class InvalidSignatureUnknownKeyException extends VerifyException
+{
+	public function __construct()
+	{
+		parent::__construct('invalid signature (unknown key)', 3);
+	}
+}
diff --git a/wrappers/php/src/SignatureTooOldException.php b/wrappers/php/src/SignatureTooOldException.php
new file mode 100644
index 0000000..bbae949
--- /dev/null
+++ b/wrappers/php/src/SignatureTooOldException.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace EduVpn\Common;
+
+/** Signature has a timestamp lower than the specified minimum signing time. */
+final class SignatureTooOldException extends VerifyException
+{
+	public function __construct()
+	{
+		parent::__construct('replay of previous signature (rollback)', 4);
+	}
+}
diff --git a/wrappers/php/src/UnknownVerifyException.php b/wrappers/php/src/UnknownVerifyException.php
new file mode 100644
index 0000000..1290cc3
--- /dev/null
+++ b/wrappers/php/src/UnknownVerifyException.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace EduVpn\Common;
+
+/** Other unknown error. */
+final class UnknownVerifyException extends VerifyException
+{
+	public function __construct(int $code)
+	{
+		parent::__construct("unknown verify error ($code)", $code);
+	}
+}
diff --git a/wrappers/php/src/VerifyException.php b/wrappers/php/src/VerifyException.php
new file mode 100644
index 0000000..101f728
--- /dev/null
+++ b/wrappers/php/src/VerifyException.php
@@ -0,0 +1,14 @@
+<?php declare(strict_types=1);
+
+namespace EduVpn\Common;
+
+use Exception;
+
+/** Verification failed, do not trust the file. */
+abstract class VerifyException extends Exception
+{
+	public function __construct(string $message, int $code)
+	{
+		parent::__construct($message, $code);
+	}
+}
diff --git a/wrappers/php/tests/DiscoveryTest.php b/wrappers/php/tests/DiscoveryTest.php
new file mode 100644
index 0000000..25ac187
--- /dev/null
+++ b/wrappers/php/tests/DiscoveryTest.php
@@ -0,0 +1,60 @@
+<?php declare(strict_types=1);
+
+use EduVpn\Common\Discovery;
+use EduVpn\Common\InvalidSignatureException;
+use EduVpn\Common\InvalidSignatureUnknownKeyException;
+use EduVpn\Common\SignatureTooOldException;
+use PHPUnit\Framework\TestCase;
+
+class DiscoveryTest extends TestCase
+{
+	/** @var string */
+	private const TEST_DATA_DIR = '../../test_data';
+
+	public static function setUpBeforeClass(): void
+	{
+		preg_match('/[\r\n](\S+)\s*/', file_get_contents(self::TEST_DATA_DIR . '/dummy/public.key'), $matches);
+		Discovery::insecureTestingSetExtraKey($matches[1]);
+	}
+
+	public function testValid(): void
+	{
+		$this->expectNotToPerformAssertions();
+		Discovery::verify(file_get_contents(self::TEST_DATA_DIR . '/dummy/server_list.json.minisig'),
+			  file_get_contents(self::TEST_DATA_DIR . '/dummy/server_list.json'),
+			  'server_list.json', 0);
+	}
+
+	public function testInvalidSignature(): void
+	{
+		$this->expectException(InvalidSignatureException::class);
+		Discovery::verify(file_get_contents(self::TEST_DATA_DIR . '/dummy/random.txt'),
+			  file_get_contents(self::TEST_DATA_DIR . '/dummy/server_list.json'),
+			  'server_list.json', 0);
+	}
+
+	public function testWrongKey(): void
+	{
+		$this->expectException(InvalidSignatureUnknownKeyException::class);
+		Discovery::verify(file_get_contents(self::TEST_DATA_DIR . '/dummy/server_list.json.wrong_key.minisig'),
+			  file_get_contents(self::TEST_DATA_DIR . '/dummy/server_list.json'),
+			  'server_list.json', 0);
+	}
+
+	#[deprecated]
+	public function testOldSignature(): void
+	{
+		$this->expectException(SignatureTooOldException::class);
+		Discovery::verify(file_get_contents(self::TEST_DATA_DIR . '/dummy/server_list.json.minisig'),
+			  file_get_contents(self::TEST_DATA_DIR . '/dummy/server_list.json'),
+			  'server_list.json', 1 << 31);
+	}
+
+	public function testUnknownExpectedFileName(): void
+	{
+		$this->expectException(InvalidArgumentException::class);
+		Discovery::verify(file_get_contents(self::TEST_DATA_DIR . '/dummy/other_list.json.minisig'),
+			  file_get_contents(self::TEST_DATA_DIR . '/dummy/other_list.json'),
+			  'other_list.json', 0);
+	}
+}
diff --git a/wrappers/swift/.gitignore b/wrappers/swift/.gitignore
index 6481577..32d8b26 100644
--- a/wrappers/swift/.gitignore
+++ b/wrappers/swift/.gitignore
@@ -5,3 +5,4 @@ Packages/
 xcuserdata/
 DerivedData/
 *.xcworkspacedata
+*.h
diff --git a/wrappers/swift/CEduVpnCommon/Sources/CEduVpnCommon/module.modulemap b/wrappers/swift/CEduVpnCommon/Sources/CEduVpnCommon/module.modulemap
index f0f47a7..c85e48f 100644
--- a/wrappers/swift/CEduVpnCommon/Sources/CEduVpnCommon/module.modulemap
+++ b/wrappers/swift/CEduVpnCommon/Sources/CEduVpnCommon/module.modulemap
@@ -1,5 +1,5 @@
 module CEduVpnCommon {
-    header "../../../../../exports/eduvpn_verify.h"
+    header "Headers/eduvpn_verify.h"
     link "eduvpn_verify"
     export *
 }
diff --git a/wrappers/swift/Makefile b/wrappers/swift/Makefile
index cf117f3..826dde3 100644
--- a/wrappers/swift/Makefile
+++ b/wrappers/swift/Makefile
@@ -5,27 +5,23 @@ GOOS      != go env GOHOSTOS
 GOARCH    != go env GOHOSTARCH
 
 ifeq (Windows_NT,$(OS))
-export PATH := $(PATH):$(abspath ../../exports/$(GOOS)/$(GOARCH))
+SWIFT = ./swift.cmd
+export PATH := $(abspath ../../exports/$(GOOS)/$(GOARCH)):$(PATH)
 else
-export LD_LIBRARY_PATH := $(LD_LIBRARY_PATH):$(abspath ../../exports/$(GOOS)/$(GOARCH))
+SWIFT = swift
+export LD_LIBRARY_PATH := $(abspath ../../exports/$(GOOS)/$(GOARCH)):$(LD_LIBRARY_PATH)
 endif
 endif
 
-build:
-	$(MAKE) -C ../../exports
-ifeq (Windows_NT,$(OS))
-	"$(COMSPEC)" /c "\".\\fix-path.cmd & swift build --configuration release -Xlinker -L^\"../../exports/$(GOOS)/$(GOARCH)^\"\""
-else
-	swift build --configuration release -Xlinker -L"../../exports/$(GOOS)/$(GOARCH)"
-endif
+build: .build_lib
+	$(SWIFT) build --configuration release -Xlinker -L"../../exports/$(GOOS)/$(GOARCH)"
 
-test:
-	$(MAKE) -C ../../exports
-ifeq (Windows_NT,$(OS))
-	"$(COMSPEC)" /c "\".\\fix-path.cmd & swift test --parallel -Xlinker -L^\"../../exports/$(GOOS)/$(GOARCH)^\"\""
-else
-	swift test --parallel -Xlinker -L"../../exports/$(GOOS)/$(GOARCH)"
-endif
+test: .build_lib
+	$(SWIFT) test --parallel -Xlinker -L"../../exports/$(GOOS)/$(GOARCH)"
 
 clean:
-	rm -rf .build/
+	rm -rf .build/ CEduVpnCommon/Sources/CEduVpnCommon/Headers/*.h
+
+.build_lib:
+	$(MAKE) -C ../../exports
+	install "../../exports/$(GOOS)/$(GOARCH)/eduvpn_verify.h" -Dt CEduVpnCommon/Sources/CEduVpnCommon/Headers
diff --git a/wrappers/swift/fix-path.cmd b/wrappers/swift/swift.cmd
index d8a1e42..87fba4b 100644..100755
--- a/wrappers/swift/fix-path.cmd
+++ b/wrappers/swift/swift.cmd
@@ -1,6 +1,9 @@
 @echo off
+
 :: Rename PATH -> Path
 set _p=%PATH%
 set PATH=
 set Path=%_p%
 set _p=
+
+swift.exe %*