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/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.handler.codec.http;
import io.netty.buffer.ByteBuf;
import io.netty.util.CharsetUtil;
import static io.netty.handler.codec.http.HttpConstants.SP;
/**
* The response code and its description of HTTP or its derived protocols, such as
* RTSP and
* ICAP.
*/
public class HttpResponseStatus implements Comparable {
/**
* 100 Continue
*/
public static final HttpResponseStatus CONTINUE = new HttpResponseStatus(100, "Continue", true);
/**
* 101 Switching Protocols
*/
public static final HttpResponseStatus SWITCHING_PROTOCOLS =
new HttpResponseStatus(101, "Switching Protocols", true);
/**
* 102 Processing (WebDAV, RFC2518)
*/
public static final HttpResponseStatus PROCESSING = new HttpResponseStatus(102, "Processing", true);
/**
* 200 OK
*/
public static final HttpResponseStatus OK = new HttpResponseStatus(200, "OK", true);
/**
* 201 Created
*/
public static final HttpResponseStatus CREATED = new HttpResponseStatus(201, "Created", true);
/**
* 202 Accepted
*/
public static final HttpResponseStatus ACCEPTED = new HttpResponseStatus(202, "Accepted", true);
/**
* 203 Non-Authoritative Information (since HTTP/1.1)
*/
public static final HttpResponseStatus NON_AUTHORITATIVE_INFORMATION =
new HttpResponseStatus(203, "Non-Authoritative Information", true);
/**
* 204 No Content
*/
public static final HttpResponseStatus NO_CONTENT = new HttpResponseStatus(204, "No Content", true);
/**
* 205 Reset Content
*/
public static final HttpResponseStatus RESET_CONTENT = new HttpResponseStatus(205, "Reset Content", true);
/**
* 206 Partial Content
*/
public static final HttpResponseStatus PARTIAL_CONTENT = new HttpResponseStatus(206, "Partial Content", true);
/**
* 207 Multi-Status (WebDAV, RFC2518)
*/
public static final HttpResponseStatus MULTI_STATUS = new HttpResponseStatus(207, "Multi-Status", true);
/**
* 300 Multiple Choices
*/
public static final HttpResponseStatus MULTIPLE_CHOICES = new HttpResponseStatus(300, "Multiple Choices", true);
/**
* 301 Moved Permanently
*/
public static final HttpResponseStatus MOVED_PERMANENTLY = new HttpResponseStatus(301, "Moved Permanently", true);
/**
* 302 Found
*/
public static final HttpResponseStatus FOUND = new HttpResponseStatus(302, "Found", true);
/**
* 303 See Other (since HTTP/1.1)
*/
public static final HttpResponseStatus SEE_OTHER = new HttpResponseStatus(303, "See Other", true);
/**
* 304 Not Modified
*/
public static final HttpResponseStatus NOT_MODIFIED = new HttpResponseStatus(304, "Not Modified", true);
/**
* 305 Use Proxy (since HTTP/1.1)
*/
public static final HttpResponseStatus USE_PROXY = new HttpResponseStatus(305, "Use Proxy", true);
/**
* 307 Temporary Redirect (since HTTP/1.1)
*/
public static final HttpResponseStatus TEMPORARY_REDIRECT = new HttpResponseStatus(307, "Temporary Redirect", true);
/**
* 400 Bad Request
*/
public static final HttpResponseStatus BAD_REQUEST = new HttpResponseStatus(400, "Bad Request", true);
/**
* 401 Unauthorized
*/
public static final HttpResponseStatus UNAUTHORIZED = new HttpResponseStatus(401, "Unauthorized", true);
/**
* 402 Payment Required
*/
public static final HttpResponseStatus PAYMENT_REQUIRED = new HttpResponseStatus(402, "Payment Required", true);
/**
* 403 Forbidden
*/
public static final HttpResponseStatus FORBIDDEN = new HttpResponseStatus(403, "Forbidden", true);
/**
* 404 Not Found
*/
public static final HttpResponseStatus NOT_FOUND = new HttpResponseStatus(404, "Not Found", true);
/**
* 405 Method Not Allowed
*/
public static final HttpResponseStatus METHOD_NOT_ALLOWED = new HttpResponseStatus(405, "Method Not Allowed", true);
/**
* 406 Not Acceptable
*/
public static final HttpResponseStatus NOT_ACCEPTABLE = new HttpResponseStatus(406, "Not Acceptable", true);
/**
* 407 Proxy Authentication Required
*/
public static final HttpResponseStatus PROXY_AUTHENTICATION_REQUIRED =
new HttpResponseStatus(407, "Proxy Authentication Required", true);
/**
* 408 Request Timeout
*/
public static final HttpResponseStatus REQUEST_TIMEOUT = new HttpResponseStatus(408, "Request Timeout", true);
/**
* 409 Conflict
*/
public static final HttpResponseStatus CONFLICT = new HttpResponseStatus(409, "Conflict", true);
/**
* 410 Gone
*/
public static final HttpResponseStatus GONE = new HttpResponseStatus(410, "Gone", true);
/**
* 411 Length Required
*/
public static final HttpResponseStatus LENGTH_REQUIRED = new HttpResponseStatus(411, "Length Required", true);
/**
* 412 Precondition Failed
*/
public static final HttpResponseStatus PRECONDITION_FAILED =
new HttpResponseStatus(412, "Precondition Failed", true);
/**
* 413 Request Entity Too Large
*/
public static final HttpResponseStatus REQUEST_ENTITY_TOO_LARGE =
new HttpResponseStatus(413, "Request Entity Too Large", true);
/**
* 414 Request-URI Too Long
*/
public static final HttpResponseStatus REQUEST_URI_TOO_LONG =
new HttpResponseStatus(414, "Request-URI Too Long", true);
/**
* 415 Unsupported Media Type
*/
public static final HttpResponseStatus UNSUPPORTED_MEDIA_TYPE =
new HttpResponseStatus(415, "Unsupported Media Type", true);
/**
* 416 Requested Range Not Satisfiable
*/
public static final HttpResponseStatus REQUESTED_RANGE_NOT_SATISFIABLE =
new HttpResponseStatus(416, "Requested Range Not Satisfiable", true);
/**
* 417 Expectation Failed
*/
public static final HttpResponseStatus EXPECTATION_FAILED =
new HttpResponseStatus(417, "Expectation Failed", true);
/**
* 422 Unprocessable Entity (WebDAV, RFC4918)
*/
public static final HttpResponseStatus UNPROCESSABLE_ENTITY =
new HttpResponseStatus(422, "Unprocessable Entity", true);
/**
* 423 Locked (WebDAV, RFC4918)
*/
public static final HttpResponseStatus LOCKED =
new HttpResponseStatus(423, "Locked", true);
/**
* 424 Failed Dependency (WebDAV, RFC4918)
*/
public static final HttpResponseStatus FAILED_DEPENDENCY = new HttpResponseStatus(424, "Failed Dependency", true);
/**
* 425 Unordered Collection (WebDAV, RFC3648)
*/
public static final HttpResponseStatus UNORDERED_COLLECTION =
new HttpResponseStatus(425, "Unordered Collection", true);
/**
* 426 Upgrade Required (RFC2817)
*/
public static final HttpResponseStatus UPGRADE_REQUIRED = new HttpResponseStatus(426, "Upgrade Required", true);
/**
* 428 Precondition Required (RFC6585)
*/
public static final HttpResponseStatus PRECONDITION_REQUIRED =
new HttpResponseStatus(428, "Precondition Required", true);
/**
* 429 Too Many Requests (RFC6585)
*/
public static final HttpResponseStatus TOO_MANY_REQUESTS = new HttpResponseStatus(429, "Too Many Requests", true);
/**
* 431 Request Header Fields Too Large (RFC6585)
*/
public static final HttpResponseStatus REQUEST_HEADER_FIELDS_TOO_LARGE =
new HttpResponseStatus(431, "Request Header Fields Too Large", true);
/**
* 500 Internal Server Error
*/
public static final HttpResponseStatus INTERNAL_SERVER_ERROR =
new HttpResponseStatus(500, "Internal Server Error", true);
/**
* 501 Not Implemented
*/
public static final HttpResponseStatus NOT_IMPLEMENTED = new HttpResponseStatus(501, "Not Implemented", true);
/**
* 502 Bad Gateway
*/
public static final HttpResponseStatus BAD_GATEWAY = new HttpResponseStatus(502, "Bad Gateway", true);
/**
* 503 Service Unavailable
*/
public static final HttpResponseStatus SERVICE_UNAVAILABLE =
new HttpResponseStatus(503, "Service Unavailable", true);
/**
* 504 Gateway Timeout
*/
public static final HttpResponseStatus GATEWAY_TIMEOUT = new HttpResponseStatus(504, "Gateway Timeout", true);
/**
* 505 HTTP Version Not Supported
*/
public static final HttpResponseStatus HTTP_VERSION_NOT_SUPPORTED =
new HttpResponseStatus(505, "HTTP Version Not Supported", true);
/**
* 506 Variant Also Negotiates (RFC2295)
*/
public static final HttpResponseStatus VARIANT_ALSO_NEGOTIATES =
new HttpResponseStatus(506, "Variant Also Negotiates", true);
/**
* 507 Insufficient Storage (WebDAV, RFC4918)
*/
public static final HttpResponseStatus INSUFFICIENT_STORAGE =
new HttpResponseStatus(507, "Insufficient Storage", true);
/**
* 510 Not Extended (RFC2774)
*/
public static final HttpResponseStatus NOT_EXTENDED = new HttpResponseStatus(510, "Not Extended", true);
/**
* 511 Network Authentication Required (RFC6585)
*/
public static final HttpResponseStatus NETWORK_AUTHENTICATION_REQUIRED =
new HttpResponseStatus(511, "Network Authentication Required", true);
/**
* Returns the {@link HttpResponseStatus} represented by the specified code.
* If the specified code is a standard HTTP getStatus code, a cached instance
* will be returned. Otherwise, a new instance will be returned.
*/
public static HttpResponseStatus valueOf(int code) {
switch (code) {
case 100:
return CONTINUE;
case 101:
return SWITCHING_PROTOCOLS;
case 102:
return PROCESSING;
case 200:
return OK;
case 201:
return CREATED;
case 202:
return ACCEPTED;
case 203:
return NON_AUTHORITATIVE_INFORMATION;
case 204:
return NO_CONTENT;
case 205:
return RESET_CONTENT;
case 206:
return PARTIAL_CONTENT;
case 207:
return MULTI_STATUS;
case 300:
return MULTIPLE_CHOICES;
case 301:
return MOVED_PERMANENTLY;
case 302:
return FOUND;
case 303:
return SEE_OTHER;
case 304:
return NOT_MODIFIED;
case 305:
return USE_PROXY;
case 307:
return TEMPORARY_REDIRECT;
case 400:
return BAD_REQUEST;
case 401:
return UNAUTHORIZED;
case 402:
return PAYMENT_REQUIRED;
case 403:
return FORBIDDEN;
case 404:
return NOT_FOUND;
case 405:
return METHOD_NOT_ALLOWED;
case 406:
return NOT_ACCEPTABLE;
case 407:
return PROXY_AUTHENTICATION_REQUIRED;
case 408:
return REQUEST_TIMEOUT;
case 409:
return CONFLICT;
case 410:
return GONE;
case 411:
return LENGTH_REQUIRED;
case 412:
return PRECONDITION_FAILED;
case 413:
return REQUEST_ENTITY_TOO_LARGE;
case 414:
return REQUEST_URI_TOO_LONG;
case 415:
return UNSUPPORTED_MEDIA_TYPE;
case 416:
return REQUESTED_RANGE_NOT_SATISFIABLE;
case 417:
return EXPECTATION_FAILED;
case 422:
return UNPROCESSABLE_ENTITY;
case 423:
return LOCKED;
case 424:
return FAILED_DEPENDENCY;
case 425:
return UNORDERED_COLLECTION;
case 426:
return UPGRADE_REQUIRED;
case 428:
return PRECONDITION_REQUIRED;
case 429:
return TOO_MANY_REQUESTS;
case 431:
return REQUEST_HEADER_FIELDS_TOO_LARGE;
case 500:
return INTERNAL_SERVER_ERROR;
case 501:
return NOT_IMPLEMENTED;
case 502:
return BAD_GATEWAY;
case 503:
return SERVICE_UNAVAILABLE;
case 504:
return GATEWAY_TIMEOUT;
case 505:
return HTTP_VERSION_NOT_SUPPORTED;
case 506:
return VARIANT_ALSO_NEGOTIATES;
case 507:
return INSUFFICIENT_STORAGE;
case 510:
return NOT_EXTENDED;
case 511:
return NETWORK_AUTHENTICATION_REQUIRED;
}
final String reasonPhrase;
if (code < 100) {
reasonPhrase = "Unknown Status";
} else if (code < 200) {
reasonPhrase = "Informational";
} else if (code < 300) {
reasonPhrase = "Successful";
} else if (code < 400) {
reasonPhrase = "Redirection";
} else if (code < 500) {
reasonPhrase = "Client Error";
} else if (code < 600) {
reasonPhrase = "Server Error";
} else {
reasonPhrase = "Unknown Status";
}
return new HttpResponseStatus(code, reasonPhrase + " (" + code + ')');
}
private final int code;
private final String reasonPhrase;
private final byte[] bytes;
/**
* Creates a new instance with the specified {@code code} and its
* {@code reasonPhrase}.
*/
public HttpResponseStatus(int code, String reasonPhrase) {
this(code, reasonPhrase, false);
}
private HttpResponseStatus(int code, String reasonPhrase, boolean bytes) {
if (code < 0) {
throw new IllegalArgumentException(
"code: " + code + " (expected: 0+)");
}
if (reasonPhrase == null) {
throw new NullPointerException("reasonPhrase");
}
for (int i = 0; i < reasonPhrase.length(); i ++) {
char c = reasonPhrase.charAt(i);
// Check prohibited characters.
switch (c) {
case '\n': case '\r':
throw new IllegalArgumentException(
"reasonPhrase contains one of the following prohibited characters: " +
"\\r\\n: " + reasonPhrase);
}
}
this.code = code;
this.reasonPhrase = reasonPhrase;
if (bytes) {
this.bytes = (code + " " + reasonPhrase).getBytes(CharsetUtil.US_ASCII);
} else {
this.bytes = null;
}
}
/**
* Returns the code of this {@link HttpResponseStatus}.
*/
public int code() {
return code;
}
/**
* Returns the reason phrase of this {@link HttpResponseStatus}.
*/
public String reasonPhrase() {
return reasonPhrase;
}
@Override
public int hashCode() {
return code();
}
/**
* Equality of {@link HttpResponseStatus} only depends on {@link #code()}. The
* reason phrase is not considered for equality.
*/
@Override
public boolean equals(Object o) {
if (!(o instanceof HttpResponseStatus)) {
return false;
}
return code() == ((HttpResponseStatus) o).code();
}
/**
* Equality of {@link HttpResponseStatus} only depends on {@link #code()}. The
* reason phrase is not considered for equality.
*/
@Override
public int compareTo(HttpResponseStatus o) {
return code() - o.code();
}
@Override
public String toString() {
return new StringBuilder(reasonPhrase.length() + 5)
.append(code)
.append(' ')
.append(reasonPhrase)
.toString();
}
void encode(ByteBuf buf) {
if (bytes == null) {
HttpHeaders.encodeAscii0(String.valueOf(code()), buf);
buf.writeByte(SP);
HttpHeaders.encodeAscii0(String.valueOf(reasonPhrase()), buf);
} else {
buf.writeBytes(bytes);
}
}
}
