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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:
*
* https://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.buffer.ByteBufUtil;
import io.netty.util.AsciiString;
import io.netty.util.CharsetUtil;
import io.netty.util.internal.ObjectUtil;
import static io.netty.handler.codec.http.HttpConstants.SP;
import static io.netty.util.ByteProcessor.FIND_ASCII_SPACE;
import static io.netty.util.internal.ObjectUtil.checkPositiveOrZero;
import static java.lang.Integer.parseInt;
/**
* 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 = newStatus(100, "Continue");
/**
* 101 Switching Protocols
*/
public static final HttpResponseStatus SWITCHING_PROTOCOLS = newStatus(101, "Switching Protocols");
/**
* 102 Processing (WebDAV, RFC2518)
*/
public static final HttpResponseStatus PROCESSING = newStatus(102, "Processing");
/**
* 103 Early Hints (RFC 8297)
*/
public static final HttpResponseStatus EARLY_HINTS = newStatus(103, "Early Hints");
/**
* 200 OK
*/
public static final HttpResponseStatus OK = newStatus(200, "OK");
/**
* 201 Created
*/
public static final HttpResponseStatus CREATED = newStatus(201, "Created");
/**
* 202 Accepted
*/
public static final HttpResponseStatus ACCEPTED = newStatus(202, "Accepted");
/**
* 203 Non-Authoritative Information (since HTTP/1.1)
*/
public static final HttpResponseStatus NON_AUTHORITATIVE_INFORMATION =
newStatus(203, "Non-Authoritative Information");
/**
* 204 No Content
*/
public static final HttpResponseStatus NO_CONTENT = newStatus(204, "No Content");
/**
* 205 Reset Content
*/
public static final HttpResponseStatus RESET_CONTENT = newStatus(205, "Reset Content");
/**
* 206 Partial Content
*/
public static final HttpResponseStatus PARTIAL_CONTENT = newStatus(206, "Partial Content");
/**
* 207 Multi-Status (WebDAV, RFC2518)
*/
public static final HttpResponseStatus MULTI_STATUS = newStatus(207, "Multi-Status");
/**
* 300 Multiple Choices
*/
public static final HttpResponseStatus MULTIPLE_CHOICES = newStatus(300, "Multiple Choices");
/**
* 301 Moved Permanently
*/
public static final HttpResponseStatus MOVED_PERMANENTLY = newStatus(301, "Moved Permanently");
/**
* 302 Found
*/
public static final HttpResponseStatus FOUND = newStatus(302, "Found");
/**
* 303 See Other (since HTTP/1.1)
*/
public static final HttpResponseStatus SEE_OTHER = newStatus(303, "See Other");
/**
* 304 Not Modified
*/
public static final HttpResponseStatus NOT_MODIFIED = newStatus(304, "Not Modified");
/**
* 305 Use Proxy (since HTTP/1.1)
*/
public static final HttpResponseStatus USE_PROXY = newStatus(305, "Use Proxy");
/**
* 307 Temporary Redirect (since HTTP/1.1)
*/
public static final HttpResponseStatus TEMPORARY_REDIRECT = newStatus(307, "Temporary Redirect");
/**
* 308 Permanent Redirect (RFC7538)
*/
public static final HttpResponseStatus PERMANENT_REDIRECT = newStatus(308, "Permanent Redirect");
/**
* 400 Bad Request
*/
public static final HttpResponseStatus BAD_REQUEST = newStatus(400, "Bad Request");
/**
* 401 Unauthorized
*/
public static final HttpResponseStatus UNAUTHORIZED = newStatus(401, "Unauthorized");
/**
* 402 Payment Required
*/
public static final HttpResponseStatus PAYMENT_REQUIRED = newStatus(402, "Payment Required");
/**
* 403 Forbidden
*/
public static final HttpResponseStatus FORBIDDEN = newStatus(403, "Forbidden");
/**
* 404 Not Found
*/
public static final HttpResponseStatus NOT_FOUND = newStatus(404, "Not Found");
/**
* 405 Method Not Allowed
*/
public static final HttpResponseStatus METHOD_NOT_ALLOWED = newStatus(405, "Method Not Allowed");
/**
* 406 Not Acceptable
*/
public static final HttpResponseStatus NOT_ACCEPTABLE = newStatus(406, "Not Acceptable");
/**
* 407 Proxy Authentication Required
*/
public static final HttpResponseStatus PROXY_AUTHENTICATION_REQUIRED =
newStatus(407, "Proxy Authentication Required");
/**
* 408 Request Timeout
*/
public static final HttpResponseStatus REQUEST_TIMEOUT = newStatus(408, "Request Timeout");
/**
* 409 Conflict
*/
public static final HttpResponseStatus CONFLICT = newStatus(409, "Conflict");
/**
* 410 Gone
*/
public static final HttpResponseStatus GONE = newStatus(410, "Gone");
/**
* 411 Length Required
*/
public static final HttpResponseStatus LENGTH_REQUIRED = newStatus(411, "Length Required");
/**
* 412 Precondition Failed
*/
public static final HttpResponseStatus PRECONDITION_FAILED = newStatus(412, "Precondition Failed");
/**
* 413 Request Entity Too Large
*/
public static final HttpResponseStatus REQUEST_ENTITY_TOO_LARGE =
newStatus(413, "Request Entity Too Large");
/**
* 414 Request-URI Too Long
*/
public static final HttpResponseStatus REQUEST_URI_TOO_LONG = newStatus(414, "Request-URI Too Long");
/**
* 415 Unsupported Media Type
*/
public static final HttpResponseStatus UNSUPPORTED_MEDIA_TYPE = newStatus(415, "Unsupported Media Type");
/**
* 416 Requested Range Not Satisfiable
*/
public static final HttpResponseStatus REQUESTED_RANGE_NOT_SATISFIABLE =
newStatus(416, "Requested Range Not Satisfiable");
/**
* 417 Expectation Failed
*/
public static final HttpResponseStatus EXPECTATION_FAILED = newStatus(417, "Expectation Failed");
/**
* 421 Misdirected Request
*
* @see 421 (Misdirected Request) Status Code
*/
public static final HttpResponseStatus MISDIRECTED_REQUEST = newStatus(421, "Misdirected Request");
/**
* 422 Unprocessable Entity (WebDAV, RFC4918)
*/
public static final HttpResponseStatus UNPROCESSABLE_ENTITY = newStatus(422, "Unprocessable Entity");
/**
* 423 Locked (WebDAV, RFC4918)
*/
public static final HttpResponseStatus LOCKED = newStatus(423, "Locked");
/**
* 424 Failed Dependency (WebDAV, RFC4918)
*/
public static final HttpResponseStatus FAILED_DEPENDENCY = newStatus(424, "Failed Dependency");
/**
* 425 Unordered Collection (WebDAV, RFC3648)
*/
public static final HttpResponseStatus UNORDERED_COLLECTION = newStatus(425, "Unordered Collection");
/**
* 426 Upgrade Required (RFC2817)
*/
public static final HttpResponseStatus UPGRADE_REQUIRED = newStatus(426, "Upgrade Required");
/**
* 428 Precondition Required (RFC6585)
*/
public static final HttpResponseStatus PRECONDITION_REQUIRED = newStatus(428, "Precondition Required");
/**
* 429 Too Many Requests (RFC6585)
*/
public static final HttpResponseStatus TOO_MANY_REQUESTS = newStatus(429, "Too Many Requests");
/**
* 431 Request Header Fields Too Large (RFC6585)
*/
public static final HttpResponseStatus REQUEST_HEADER_FIELDS_TOO_LARGE =
newStatus(431, "Request Header Fields Too Large");
/**
* 500 Internal Server Error
*/
public static final HttpResponseStatus INTERNAL_SERVER_ERROR = newStatus(500, "Internal Server Error");
/**
* 501 Not Implemented
*/
public static final HttpResponseStatus NOT_IMPLEMENTED = newStatus(501, "Not Implemented");
/**
* 502 Bad Gateway
*/
public static final HttpResponseStatus BAD_GATEWAY = newStatus(502, "Bad Gateway");
/**
* 503 Service Unavailable
*/
public static final HttpResponseStatus SERVICE_UNAVAILABLE = newStatus(503, "Service Unavailable");
/**
* 504 Gateway Timeout
*/
public static final HttpResponseStatus GATEWAY_TIMEOUT = newStatus(504, "Gateway Timeout");
/**
* 505 HTTP Version Not Supported
*/
public static final HttpResponseStatus HTTP_VERSION_NOT_SUPPORTED =
newStatus(505, "HTTP Version Not Supported");
/**
* 506 Variant Also Negotiates (RFC2295)
*/
public static final HttpResponseStatus VARIANT_ALSO_NEGOTIATES = newStatus(506, "Variant Also Negotiates");
/**
* 507 Insufficient Storage (WebDAV, RFC4918)
*/
public static final HttpResponseStatus INSUFFICIENT_STORAGE = newStatus(507, "Insufficient Storage");
/**
* 510 Not Extended (RFC2774)
*/
public static final HttpResponseStatus NOT_EXTENDED = newStatus(510, "Not Extended");
/**
* 511 Network Authentication Required (RFC6585)
*/
public static final HttpResponseStatus NETWORK_AUTHENTICATION_REQUIRED =
newStatus(511, "Network Authentication Required");
private static HttpResponseStatus newStatus(int statusCode, String reasonPhrase) {
return new HttpResponseStatus(statusCode, reasonPhrase, true);
}
/**
* Returns the {@link HttpResponseStatus} represented by the specified code.
* If the specified code is a standard HTTP status code, a cached instance
* will be returned. Otherwise, a new instance will be returned.
*/
public static HttpResponseStatus valueOf(int code) {
HttpResponseStatus status = valueOf0(code);
return status != null ? status : new HttpResponseStatus(code);
}
private static HttpResponseStatus valueOf0(int code) {
switch (code) {
case 100:
return CONTINUE;
case 101:
return SWITCHING_PROTOCOLS;
case 102:
return PROCESSING;
case 103:
return EARLY_HINTS;
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 308:
return PERMANENT_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 421:
return MISDIRECTED_REQUEST;
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;
}
return null;
}
/**
* Returns the {@link HttpResponseStatus} represented by the specified {@code code} and {@code reasonPhrase}.
* If the specified code is a standard HTTP status {@code code} and {@code reasonPhrase}, a cached instance
* will be returned. Otherwise, a new instance will be returned.
* @param code The response code value.
* @param reasonPhrase The response code reason phrase.
* @return the {@link HttpResponseStatus} represented by the specified {@code code} and {@code reasonPhrase}.
*/
public static HttpResponseStatus valueOf(int code, String reasonPhrase) {
HttpResponseStatus responseStatus = valueOf0(code);
return responseStatus != null && responseStatus.reasonPhrase().contentEquals(reasonPhrase) ? responseStatus :
new HttpResponseStatus(code, reasonPhrase);
}
/**
* Parses the specified HTTP status line into a {@link HttpResponseStatus}. The expected formats of the line are:
*
*
{@code statusCode} (e.g. 200)
*
{@code statusCode} {@code reasonPhrase} (e.g. 404 Not Found)
*
*
* @throws IllegalArgumentException if the specified status line is malformed
*/
public static HttpResponseStatus parseLine(CharSequence line) {
return (line instanceof AsciiString) ? parseLine((AsciiString) line) : parseLine(line.toString());
}
/**
* Parses the specified HTTP status line into a {@link HttpResponseStatus}. The expected formats of the line are:
*
*
{@code statusCode} (e.g. 200)
*
{@code statusCode} {@code reasonPhrase} (e.g. 404 Not Found)
*
*
* @throws IllegalArgumentException if the specified status line is malformed
*/
public static HttpResponseStatus parseLine(String line) {
try {
int space = line.indexOf(' ');
return space == -1 ? valueOf(parseInt(line)) :
valueOf(parseInt(line.substring(0, space)), line.substring(space + 1));
} catch (Exception e) {
throw new IllegalArgumentException("malformed status line: " + line, e);
}
}
/**
* Parses the specified HTTP status line into a {@link HttpResponseStatus}. The expected formats of the line are:
*
*
{@code statusCode} (e.g. 200)
*
{@code statusCode} {@code reasonPhrase} (e.g. 404 Not Found)
*
*
* @throws IllegalArgumentException if the specified status line is malformed
*/
public static HttpResponseStatus parseLine(AsciiString line) {
try {
int space = line.forEachByte(FIND_ASCII_SPACE);
return space == -1 ? valueOf(line.parseInt()) : valueOf(line.parseInt(0, space), line.toString(space + 1));
} catch (Exception e) {
throw new IllegalArgumentException("malformed status line: " + line, e);
}
}
private final int code;
private final AsciiString codeAsText;
private final HttpStatusClass codeClass;
private final String reasonPhrase;
private final byte[] bytes;
/**
* Creates a new instance with the specified {@code code} and the auto-generated default reason phrase.
*/
private HttpResponseStatus(int code) {
this(code, HttpStatusClass.valueOf(code).defaultReasonPhrase() + " (" + code + ')', false);
}
/**
* 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) {
checkPositiveOrZero(code, "code");
ObjectUtil.checkNotNull(reasonPhrase, "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.codeClass = HttpStatusClass.valueOf(code);
String codeString = Integer.toString(code);
codeAsText = new AsciiString(codeString);
this.reasonPhrase = reasonPhrase;
if (bytes) {
this.bytes = (codeString + ' ' + reasonPhrase).getBytes(CharsetUtil.US_ASCII);
} else {
this.bytes = null;
}
}
/**
* Returns the code of this {@link HttpResponseStatus}.
*/
public int code() {
return code;
}
/**
* Returns the status code as {@link AsciiString}.
*/
public AsciiString codeAsText() {
return codeAsText;
}
/**
* Returns the reason phrase of this {@link HttpResponseStatus}.
*/
public String reasonPhrase() {
return reasonPhrase;
}
/**
* Returns the class of this {@link HttpResponseStatus}
*/
public HttpStatusClass codeClass() {
return this.codeClass;
}
@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() + 4)
.append(codeAsText)
.append(' ')
.append(reasonPhrase)
.toString();
}
void encode(ByteBuf buf) {
if (bytes == null) {
ByteBufUtil.copy(codeAsText, buf);
buf.writeByte(SP);
buf.writeCharSequence(reasonPhrase, CharsetUtil.US_ASCII);
} else {
buf.writeBytes(bytes);
}
}
}
