git-interface: Add test suite and basic tests

Add basic tests for the Git interface. The test suite is based on
sharness.
Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

git-interface/test/Makefile

+T = $(sort $(wildcard t[0-9][0-9][0-9][0-9]-*.sh))
+
+check: $(T)
+
+clean:
+	$(RM) -r test-results/
+
+$(T):
+	@echo "*** $@ ***"; $(SHELL) $@
+
+.PHONY: check clean $(T)

git-interface/test/setup.sh

+TEST_DIRECTORY="$(pwd)"
+
+. ./sharness.sh
+
+# Configure paths to the Git interface scripts.
+GIT_AUTH="$TEST_DIRECTORY/../git-auth.py"
+GIT_SERVE="$TEST_DIRECTORY/../git-serve.py"
+GIT_UPDATE="$TEST_DIRECTORY/../git-update.py"
+
+# Create the configuration file and a dummy notification script.
+cat >config <<-EOF
+[database]
+backend = sqlite
+name = aur.db
+
+[options]
+enable-maintenance = 0
+maintenance-exceptions = 127.0.0.1
+
+[notifications]
+notify-cmd = ./notify.sh
+
+[auth]
+valid-keytypes = ssh-rsa ssh-dss ecdsa-sha2-nistp256 ecdsa-sha2-nistp384 ecdsa-sha2-nistp521 ssh-ed25519
+username-regex = [a-zA-Z0-9]+[.\-_]?[a-zA-Z0-9]+$
+git-serve-cmd = /srv/http/aurweb/git-interface/git-serve.py
+ssh-options = restrict
+
+[serve]
+repo-path = ./aur.git/
+repo-regex = [a-z0-9][a-z0-9.+_-]*$
+git-shell-cmd = /usr/bin/git-shell
+git-update-cmd = /srv/http/aurweb/git-interface/git-update.py
+ssh-cmdline = ssh aur@aur.archlinux.org
+
+[update]
+max-blob-size = 256000
+EOF
+
+cat >notify.sh <<-EOF
+#!/bin/sh
+EOF
+chmod +x notify.sh
+
+AUR_CONFIG=config
+export AUR_CONFIG
+
+# Create SSH public keys which will be used by the test users later.
+AUTH_KEYTYPE_USER=ssh-rsa
+AUTH_KEYTEXT_USER=AAAAB3NzaC1yc2EAAAADAQABAAABAQCeUafDK4jqUiRHNQfwHcYjBKLZ4Rc1sNUofHApBP6j91nIvDHZe2VUqeBmFUhBz7kXK4VbXD9nlHMun2HeshL8hXnMzymZ8Wk7+IKefj61pajJkIdttw9Tnayfg7uhg5RbFy9zpEjmGjnIVjSzOXKCwppNT+CNujpKM5FD8gso/Z+l3fD+IwrPwS1SzF1Z99nqI9n2FM/JWZqluvTqnW9WdAvBDfutXxp0R5ZiLI5TAKL2Ssp5rpL70pkLXhv+9sK545zKKlXUFmw6Pi2iVBdqdRsk9ocl49dLiNIh8CYDCO3CRQn+8EnpBhTor2TKQxGJI3mzoBwWJJxoKhD/XlYJ
+AUTH_FINGERPRINT_USER=SHA256:F/OFtYAy0JCytAGUi4RUZnOsThhQtFMK7fH1YvFBCpo
+
+AUTH_KEYTYPE_TU=ssh-rsa
+AUTH_KEYTEXT_TU=AAAAB3NzaC1yc2EAAAADAQABAAABAQC4Q2Beg6jf2r1LZ4vwT5y10dK8+/c5RaNyTwv77wF2OSLXh32xW0ovhE2lW2gqoakdGsxgM2fTtqMTl29WOsAxlGF7x9XbWhFXFUT88Daq1fAeuihkiRjfBbInSW/WcrFZ+biLBch67addtfkkd4PmAafDeeCtszAXqza+ltBG1oxAGiTXgI3LOhA1/GtLLxsi5sPUO3ZlhvwDn4Sy0aXYx8l9hop/PU4Cjn82hyRa9r+SRxQ3KtjKxcVMnZ8IyXOrBwXTukgSBR/6nSdEmO0JPkYUFuNwh3UGFKuNkrPguL5T+4YDym6czYmZJzQ7NNl2pLKYmYgBwBe5rORlWfN5
+AUTH_FINGERPRINT_TU=SHA256:xQGC6j/U1Q3NDXLl04pm+Shr1mjYUXbGMUzlm9vby4k
+
+# Initialize the test database.
+rm -f aur.db
+sed \
+	-e '/^DROP DATABASE /d' \
+	-e '/^CREATE DATABASE /d' \
+	-e '/^USE /d' \
+	-e 's/ ENGINE = InnoDB//' \
+	-e 's/ [A-Z]* UNSIGNED NOT NULL AUTO_INCREMENT/ INTEGER NOT NULL/' \
+	-e 's/([0-9, ]*) UNSIGNED / UNSIGNED /' \
+	"$TEST_DIRECTORY/../../schema/aur-schema.sql" | sqlite3 aur.db
+
+echo "INSERT INTO Users (ID, UserName, Passwd, Email, AccountTypeID) VALUES (1, 'user', '!', 'user@localhost', 1);" | sqlite3 aur.db
+echo "INSERT INTO Users (ID, UserName, Passwd, Email, AccountTypeID) VALUES (2, 'tu', '!', 'tu@localhost', 2);" | sqlite3 aur.db
+
+echo "INSERT INTO SSHPubKeys (UserID, Fingerprint, PubKey) VALUES (1, '$AUTH_FINGERPRINT_USER', '$AUTH_KEYTYPE_USER $AUTH_KEYTEXT_USER');" | sqlite3 aur.db
+echo "INSERT INTO SSHPubKeys (UserID, Fingerprint, PubKey) VALUES (2, '$AUTH_FINGERPRINT_TU', '$AUTH_KEYTYPE_TU $AUTH_KEYTEXT_TU');" | sqlite3 aur.db
+
+# Initialize a Git repository to store test packages in.
+(
+	GIT_AUTHOR_EMAIL=author@example.com
+	GIT_AUTHOR_NAME='A U Thor'
+	GIT_COMMITTER_EMAIL=committer@example.com
+	GIT_COMMITTER_NAME='C O Mitter'
+	export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
+	export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
+
+	mkdir aur.git
+	cd aur.git
+
+	git init -q
+	git checkout -q -b refs/namespaces/foobar/refs/heads/master
+
+	cat >PKGBUILD <<-EOF
+	pkgname=foobar
+	pkgver=1
+	pkgrel=1
+	pkgdesc='aurweb test package.'
+	url='https://aur.archlinux.org/'
+	license=('GPL')
+	arch=('any')
+	depends=('python-pygit2')
+	source=()
+	md5sums=()
+
+	package() {
+		echo 'Hello world!'
+	}
+	EOF
+
+	cat >.SRCINFO <<-EOF
+	pkgbase = foobar
+		pkgdesc = aurweb test package.
+		pkgver = 1
+		pkgrel = 1
+		url = https://aur.archlinux.org/
+		arch = any
+		license = GPL
+		depends = python-pygit2
+
+	pkgname = foobar
+	EOF
+
+	git add PKGBUILD .SRCINFO
+	git commit -q -am 'Initial import'
+)

git-interface/test/t0001-auth.sh

+#!/bin/sh
+
+test_description='git-auth tests'
+
+. ./setup.sh
+
+test_expect_success 'Test basic authentication.' '
+	"$GIT_AUTH" "$AUTH_KEYTYPE_USER" "$AUTH_KEYTEXT_USER" >out &&
+	grep -q AUR_USER=user out &&
+	grep -q AUR_PRIVILEGED=0 out
+'
+
+test_expect_success 'Test Trusted User authentication.' '
+	"$GIT_AUTH" "$AUTH_KEYTYPE_TU" "$AUTH_KEYTEXT_TU" >out &&
+	grep -q AUR_USER=tu out &&
+	grep -q AUR_PRIVILEGED=1 out
+'
+
+test_done

git-interface/test/t0002-serve.sh

+#!/bin/sh
+
+test_description='git-serve tests'
+
+. ./setup.sh
+
+test_expect_success 'Test interactive shell.' '
+	"$GIT_SERVE" 2>&1 | grep -q "Interactive shell is disabled."
+'
+
+test_expect_success 'Test help.' '
+	SSH_ORIGINAL_COMMAND=help "$GIT_SERVE" 2>&1 | grep -q "^Commands:$"
+'
+
+test_expect_success 'Test setup-repo and list-repos.' '
+	SSH_ORIGINAL_COMMAND="setup-repo foobar" AUR_USER=user \
+	"$GIT_SERVE" 2>&1 &&
+	cat >expected <<-EOF &&
+	*foobar
+	EOF
+	SSH_ORIGINAL_COMMAND="list-repos" AUR_USER=user \
+	"$GIT_SERVE" 2>&1 >actual &&
+	test_cmp expected actual
+'
+
+test_done

git-interface/test/t0003-update.sh

+#!/bin/sh
+
+test_description='git-update tests'
+
+. ./setup.sh
+
+test_expect_success 'Test update hook.' '
+	old=0000000000000000000000000000000000000000 &&
+	new=$(git -C aur.git rev-parse HEAD) &&
+	SSH_ORIGINAL_COMMAND="setup-repo foobar" AUR_USER=user "$GIT_SERVE" &&
+	AUR_USER=user AUR_PKGBASE=foobar AUR_PRIVILEGED=0 \
+	"$GIT_UPDATE" refs/heads/master "$old" "$new" 2>&1 &&
+	cat >expected <<-EOF &&
+	1|1|foobar|1-1|aurweb test package.|https://aur.archlinux.org/
+	EOF
+	echo "SELECT * FROM Packages;" | sqlite3 aur.db >actual &&
+	test_cmp expected actual
+'
+
+test_done