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Tests and fixes for REST class; fixes #53; improves #66

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This commit is contained in:
J. King 2018-01-07 12:59:10 -05:00
parent 3fa2d38f31
commit 4b53c5e8b3
2 changed files with 100 additions and 17 deletions
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39
lib/REST.php
View file

@ -7,6 +7,7 @@ declare(strict_types=1);
namespace JKingWeb\Arsse;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\ResponseInterface;
use Zend\Diactoros\ServerRequest;
use Zend\Diactoros\ServerRequestFactory;
@ -60,25 +61,29 @@ class REST {
// create a request object if not provided
$req = $req ?? ServerRequestFactory::fromGlobals();
// find the API to handle
list ($api, $target, $class) = $this->apiMatch($req->getRequestTarget(), $this->apis);
// modify the request to have a stripped target
$req = $req->withRequestTarget($target);
// generate a response
$res = $this->handOffRequest($class, $req);
try {
list ($api, $target, $class) = $this->apiMatch($req->getRequestTarget(), $this->apis);
// modify the request to have a stripped target
$req = $req->withRequestTarget($target);
// fetch the correct handler
$drv = $this->getHandler($class);
// generate a response
if ($req->getMethod()=="HEAD") {
// if the request is a HEAD request, we act exactly as if it were a GET request, and simply remove the response body later
$res = $drv->dispatch($req->withMethod("GET"));
} else {
$res = $drv->dispatch($req);
}
} catch (REST\Exception501 $e) {
$res = new EmptyResponse(501);
}
// modify the response so that it has all the required metadata
$res = $this->normalizeResponse($res, $req);
return $this->normalizeResponse($res, $req);
}
protected function handOffRequest(string $className, ServerRequestInterface $req): ResponseInterface {
public function getHandler(string $className): REST\Handler {
// instantiate the API handler
$drv = new $className();
// perform the request and return the response
if ($req->getMethod()=="HEAD") {
// if the request is a HEAD request, we act exactly as if it were a GET request, and simply remove the response body later
return $drv->dispatch($req->withMethod("GET"));
} else {
return $drv->dispatch($req);
}
return new $className();
}
public function apiMatch(string $url): array {
@ -121,12 +126,12 @@ class REST {
$res = $res->withoutHeader("Content-Length");
}
// if the response is to a HEAD request, the body should be omitted
if ($req->getMethod()=="HEAD") {
if ($req && $req->getMethod()=="HEAD") {
$res = new EmptyResponse($res->getStatusCode(), $res->getHeaders());
}
// if an Allow header field is present, normalize it
if ($res->hasHeader("Allow")) {
$methods = preg_split("<\s+,\s+>", strtoupper($res->getHeaderLine()));
$methods = preg_split("<\s*,\s*>", strtoupper($res->getHeaderLine("Allow")));
// if GET is allowed, HEAD should be allowed as well
if (in_array("GET", $methods) && !in_array("HEAD", $methods)) {
$methods[] = "HEAD";

78
tests/cases/REST/TestREST.php
View file

@ -7,7 +7,18 @@ declare(strict_types=1);
namespace JKingWeb\Arsse\TestCase\REST;
use JKingWeb\Arsse\REST;
use JKingWeb\Arsse\REST\Handler;
use JKingWeb\Arsse\REST\Exception501;
use JKingWeb\Arsse\REST\NextCloudNews\V1_2 as NCN;
use JKingWeb\Arsse\REST\TinyTinyRSS\API as TTRSS;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Zend\Diactoros\Request;
use Zend\Diactoros\Response;
use Zend\Diactoros\ServerRequest;
use Zend\Diactoros\Response\TextResponse;
use Zend\Diactoros\Response\EmptyResponse;
use Phake;
/** @covers \JKingWeb\Arsse\REST */
class TestREST extends \JKingWeb\Arsse\Test\AbstractTest {
@ -47,4 +58,71 @@ class TestREST extends \JKingWeb\Arsse\Test\AbstractTest {
[$fake, "/full/url-not", []],
];
}
/** @dataProvider provideUnnormalizedResponses */
public function testNormalizeHttpResponses(ResponseInterface $res, ResponseInterface $exp, RequestInterface $req = null) {
$r = new REST();
$act = $r->normalizeResponse($res, $req);
$this->assertResponse($exp, $act);
}
public function provideUnnormalizedResponses() {
$stream = fopen("php://memory", "w+b");
fwrite($stream,"ook");
return [
[new EmptyResponse(204), new EmptyResponse(204)],
[new EmptyResponse(204, ['Allow' => "PUT"]), new EmptyResponse(204, ['Allow' => "PUT, OPTIONS"])],
[new EmptyResponse(204, ['Allow' => "PUT, OPTIONS"]), new EmptyResponse(204, ['Allow' => "PUT, OPTIONS"])],
[new EmptyResponse(204, ['Allow' => "PUT,OPTIONS"]), new EmptyResponse(204, ['Allow' => "PUT, OPTIONS"])],
[new EmptyResponse(204, ['Allow' => ["PUT", "OPTIONS"]]), new EmptyResponse(204, ['Allow' => "PUT, OPTIONS"])],
[new EmptyResponse(204, ['Allow' => ["PUT, DELETE", "OPTIONS"]]), new EmptyResponse(204, ['Allow' => "PUT, DELETE, OPTIONS"])],
[new EmptyResponse(204, ['Allow' => "HEAD,GET"]), new EmptyResponse(204, ['Allow' => "HEAD, GET, OPTIONS"])],
[new EmptyResponse(204, ['Allow' => "GET"]), new EmptyResponse(204, ['Allow' => "GET, HEAD, OPTIONS"])],
[new TextResponse("ook", 200), new TextResponse("ook", 200, ['Content-Length' => "3"])],
[new TextResponse("", 200), new TextResponse("", 200, ['Content-Length' => "0"])],
[new TextResponse("ook", 404), new TextResponse("ook", 404, ['Content-Length' => "3"])],
[new TextResponse("", 404), new TextResponse("", 404)],
[new Response($stream, 200), new Response($stream, 200, ['Content-Length' => "3"]), new Request("", "GET")],
[new Response($stream, 200), new EmptyResponse(200, ['Content-Length' => "3"]), new Request("", "HEAD")],
];
}
public function testCreateHandlers() {
$r = new REST();
foreach (REST::API_LIST as $api) {
$class = $api['class'];
$this->assertInstanceOf(Handler::class, $r->getHandler($class));
}
}
/** @dataProvider provideMockRequests */
public function testDispatchRequests(ServerRequest $req, string $method, bool $called, string $class = "", string $target ="") {
$r = Phake::partialMock(REST::class);
if ($called) {
$h = Phake::mock($class);
Phake::when($r)->getHandler($class)->thenReturn($h);
Phake::when($h)->dispatch->thenReturn(new EmptyResponse(204));
}
$out = $r->dispatch($req);
$this->assertInstanceOf(ResponseInterface::class, $out);
if ($called) {
Phake::verify($h)->dispatch(Phake::capture($in));
$this->assertSame($method, $in->getMethod());
$this->assertSame($target, $in->getRequestTarget());
} else {
$this->assertSame(501, $out->getStatusCode());
}
Phake::verify($r)->apiMatch;
Phake::verify($r)->normalizeResponse;
}
public function provideMockRequests() {
return [
[new ServerRequest([], [], "/index.php/apps/news/api/v1-2/feeds", "GET"), "GET", true, NCN::Class, "/feeds"],
[new ServerRequest([], [], "/index.php/apps/news/api/v1-2/feeds", "HEAD"), "GET", true, NCN::Class, "/feeds"],
[new ServerRequest([], [], "/tt-rss/api/", "POST"), "POST", true, TTRSS::Class, "/"],
[new ServerRequest([], [], "/no/such/api/", "HEAD"), "GET", false],
[new ServerRequest([], [], "/no/such/api/", "GET"), "GET", false],
];
}
}