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Provide content-length header to Docker API calls

Browse Source 
Docker daemon authorization plugins reject POST or PUT requests that have a
content type `application/json` header but no content length header. This
commit ensures that a content length header is provided in these cases.

Fixes gh-22840
pull/26228/head
Scott Frederick 4 years ago
parent d79c23ef89
commit d5b2836ec9
3 changed files with 76 additions and 16 deletions
Show Stats Download Patch File Download Diff File

22
spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/transport/HttpClientTransport.java
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@ -16,13 +16,13 @@
package org.springframework.boot.buildpack.platform.docker.transport;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpHost;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
@ -118,8 +118,7 @@ abstract class HttpClientTransport implements HttpTransport {
private Response execute(HttpEntityEnclosingRequestBase request, String contentType,
IOConsumer<OutputStream> writer) {
request.setHeader(HttpHeaders.CONTENT_TYPE, contentType);
request.setEntity(new WritableHttpEntity(writer));
request.setEntity(new WritableHttpEntity(contentType, writer));
return execute(request);
}
@ -172,7 +171,8 @@ abstract class HttpClientTransport implements HttpTransport {
private final IOConsumer<OutputStream> writer;
WritableHttpEntity(IOConsumer<OutputStream> writer) {
WritableHttpEntity(String contentType, IOConsumer<OutputStream> writer) {
setContentType(contentType);
this.writer = writer;
}
@ -183,6 +183,9 @@ abstract class HttpClientTransport implements HttpTransport {
@Override
public long getContentLength() {
if (this.contentType != null && this.contentType.getValue().equals("application/json")) {
return calculateStringContentLength();
}
return -1;
}
@ -201,6 +204,17 @@ abstract class HttpClientTransport implements HttpTransport {
return true;
}
private int calculateStringContentLength() {
try {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
this.writer.accept(bytes);
return bytes.toByteArray().length;
}
catch (IOException ex) {
return -1;
}
}
}
/**

8
spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/DockerApiTests.java
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@ -262,10 +262,10 @@ class DockerApiTests {
.willReturn(responseOf("create-container-response.json"));
ContainerReference containerReference = this.api.create(config);
assertThat(containerReference.toString()).isEqualTo("e90e34656806");
ByteArrayOutputStream out = new ByteArrayOutputStream();
verify(http()).post(any(), any(), this.writer.capture());
ByteArrayOutputStream out = new ByteArrayOutputStream();
this.writer.getValue().accept(out);
assertThat(out.toByteArray()).hasSizeGreaterThan(130);
assertThat(out.toByteArray().length).isEqualTo(config.toString().length());
}
@Test
@ -284,10 +284,10 @@ class DockerApiTests {
given(http().put(eq(uploadUri), eq("application/x-tar"), any())).willReturn(emptyResponse());
ContainerReference containerReference = this.api.create(config, content);
assertThat(containerReference.toString()).isEqualTo("e90e34656806");
ByteArrayOutputStream out = new ByteArrayOutputStream();
verify(http()).post(any(), any(), this.writer.capture());
ByteArrayOutputStream out = new ByteArrayOutputStream();
this.writer.getValue().accept(out);
assertThat(out.toByteArray()).hasSizeGreaterThan(130);
assertThat(out.toByteArray().length).isEqualTo(config.toString().length());
verify(http()).put(any(), any(), this.writer.capture());
this.writer.getValue().accept(out);
assertThat(out.toByteArray()).hasSizeGreaterThan(2000);

62
spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/test/java/org/springframework/boot/buildpack/platform/docker/transport/HttpClientTransportTests.java
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@ -62,6 +62,8 @@ class HttpClientTransportTests {
private static final String APPLICATION_JSON = "application/json";
private static final String APPLICATION_X_TAR = "application/x-tar";
@Mock
private CloseableHttpClient client;
@ -124,42 +126,86 @@ class HttpClientTransportTests {
}
@Test
void postWithContentShouldExecuteHttpPost() throws Exception {
void postWithJsonContentShouldExecuteHttpPost() throws Exception {
String content = "test";
given(this.entity.getContent()).willReturn(this.content);
given(this.statusLine.getStatusCode()).willReturn(200);
Response response = this.http.post(this.uri, APPLICATION_JSON,
(out) -> StreamUtils.copy("test", StandardCharsets.UTF_8, out));
(out) -> StreamUtils.copy(content, StandardCharsets.UTF_8, out));
verify(this.client).execute(this.hostCaptor.capture(), this.requestCaptor.capture());
HttpUriRequest request = this.requestCaptor.getValue();
HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();
assertThat(request).isInstanceOf(HttpPost.class);
assertThat(request.getURI()).isEqualTo(this.uri);
assertThat(entity.isRepeatable()).isFalse();
assertThat(entity.getContentLength()).isEqualTo(content.length());
assertThat(entity.getContentType().getValue()).isEqualTo(APPLICATION_JSON);
assertThat(entity.isStreaming()).isTrue();
assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(entity::getContent);
assertThat(writeToString(entity)).isEqualTo(content);
assertThat(response.getContent()).isSameAs(this.content);
}
@Test
void postWithArchiveContentShouldExecuteHttpPost() throws Exception {
String content = "test";
given(this.entity.getContent()).willReturn(this.content);
given(this.statusLine.getStatusCode()).willReturn(200);
Response response = this.http.post(this.uri, APPLICATION_X_TAR,
(out) -> StreamUtils.copy(content, StandardCharsets.UTF_8, out));
verify(this.client).execute(this.hostCaptor.capture(), this.requestCaptor.capture());
HttpUriRequest request = this.requestCaptor.getValue();
HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();
assertThat(request).isInstanceOf(HttpPost.class);
assertThat(request.getURI()).isEqualTo(this.uri);
assertThat(request.getFirstHeader(HttpHeaders.CONTENT_TYPE).getValue()).isEqualTo(APPLICATION_JSON);
assertThat(entity.isRepeatable()).isFalse();
assertThat(entity.getContentLength()).isEqualTo(-1);
assertThat(entity.getContentType().getValue()).isEqualTo(APPLICATION_X_TAR);
assertThat(entity.isStreaming()).isTrue();
assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(entity::getContent);
assertThat(writeToString(entity)).isEqualTo("test");
assertThat(writeToString(entity)).isEqualTo(content);
assertThat(response.getContent()).isSameAs(this.content);
}
@Test
void putWithContentShouldExecuteHttpPut() throws Exception {
void putWithJsonContentShouldExecuteHttpPut() throws Exception {
String content = "test";
given(this.entity.getContent()).willReturn(this.content);
given(this.statusLine.getStatusCode()).willReturn(200);
Response response = this.http.put(this.uri, APPLICATION_JSON,
(out) -> StreamUtils.copy("test", StandardCharsets.UTF_8, out));
(out) -> StreamUtils.copy(content, StandardCharsets.UTF_8, out));
verify(this.client).execute(this.hostCaptor.capture(), this.requestCaptor.capture());
HttpUriRequest request = this.requestCaptor.getValue();
HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();
assertThat(request).isInstanceOf(HttpPut.class);
assertThat(request.getURI()).isEqualTo(this.uri);
assertThat(entity.isRepeatable()).isFalse();
assertThat(entity.getContentLength()).isEqualTo(content.length());
assertThat(entity.getContentType().getValue()).isEqualTo(APPLICATION_JSON);
assertThat(entity.isStreaming()).isTrue();
assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(entity::getContent);
assertThat(writeToString(entity)).isEqualTo(content);
assertThat(response.getContent()).isSameAs(this.content);
}
@Test
void putWithArchiveContentShouldExecuteHttpPut() throws Exception {
String content = "test";
given(this.entity.getContent()).willReturn(this.content);
given(this.statusLine.getStatusCode()).willReturn(200);
Response response = this.http.put(this.uri, APPLICATION_X_TAR,
(out) -> StreamUtils.copy(content, StandardCharsets.UTF_8, out));
verify(this.client).execute(this.hostCaptor.capture(), this.requestCaptor.capture());
HttpUriRequest request = this.requestCaptor.getValue();
HttpEntity entity = ((HttpEntityEnclosingRequest) request).getEntity();
assertThat(request).isInstanceOf(HttpPut.class);
assertThat(request.getURI()).isEqualTo(this.uri);
assertThat(request.getFirstHeader(HttpHeaders.CONTENT_TYPE).getValue()).isEqualTo(APPLICATION_JSON);
assertThat(entity.isRepeatable()).isFalse();
assertThat(entity.getContentLength()).isEqualTo(-1);
assertThat(entity.getContentType().getValue()).isEqualTo(APPLICATION_X_TAR);
assertThat(entity.isStreaming()).isTrue();
assertThatExceptionOfType(UnsupportedOperationException.class).isThrownBy(entity::getContent);
assertThat(writeToString(entity)).isEqualTo("test");
assertThat(writeToString(entity)).isEqualTo(content);
assertThat(response.getContent()).isSameAs(this.content);
}

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