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Add support BearerTokenAuthenticationConverter
Closes spring-projectsgh-14750
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Max Batischev
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Max Batischev
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Apr 7, 2024
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180 changes: 180 additions & 0 deletions
180
...rk/security/oauth2/server/resource/authentication/BearerTokenAuthenticationConverter.java
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/* | ||
* Copyright 2002-2024 the original author or authors. | ||
* | ||
* Licensed 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. | ||
*/ | ||
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package org.springframework.security.oauth2.server.resource.authentication; | ||
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import java.util.regex.Matcher; | ||
import java.util.regex.Pattern; | ||
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import jakarta.servlet.http.HttpServletRequest; | ||
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import org.springframework.http.HttpHeaders; | ||
import org.springframework.http.HttpMethod; | ||
import org.springframework.http.MediaType; | ||
import org.springframework.security.authentication.AuthenticationDetailsSource; | ||
import org.springframework.security.core.Authentication; | ||
import org.springframework.security.oauth2.core.OAuth2AuthenticationException; | ||
import org.springframework.security.oauth2.server.resource.BearerTokenError; | ||
import org.springframework.security.oauth2.server.resource.BearerTokenErrors; | ||
import org.springframework.security.web.authentication.AuthenticationConverter; | ||
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource; | ||
import org.springframework.util.Assert; | ||
import org.springframework.util.StringUtils; | ||
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/** | ||
* Implementation of {@link AuthenticationConverter}, that converts bearer token to | ||
* {@link BearerTokenAuthenticationToken} | ||
* | ||
* @author Max Batischev | ||
* @since 6.3 | ||
*/ | ||
public final class BearerTokenAuthenticationConverter implements AuthenticationConverter { | ||
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private AuthenticationDetailsSource<HttpServletRequest, ?> authenticationDetailsSource = new WebAuthenticationDetailsSource(); | ||
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private static final Pattern authorizationPattern = Pattern.compile("^Bearer (?<token>[a-zA-Z0-9-._~+/]+=*)$", | ||
Pattern.CASE_INSENSITIVE); | ||
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private static final String ACCESS_TOKEN_PARAMETER_NAME = "access_token"; | ||
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private boolean allowFormEncodedBodyParameter = false; | ||
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private boolean allowUriQueryParameter = false; | ||
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private String bearerTokenHeaderName = HttpHeaders.AUTHORIZATION; | ||
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@Override | ||
public Authentication convert(HttpServletRequest request) { | ||
String token = token(request); | ||
if (StringUtils.hasText(token)) { | ||
BearerTokenAuthenticationToken authenticationToken = new BearerTokenAuthenticationToken(token); | ||
authenticationToken.setDetails(this.authenticationDetailsSource.buildDetails(request)); | ||
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return authenticationToken; | ||
} | ||
return null; | ||
} | ||
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private String token(HttpServletRequest request) { | ||
final String authorizationHeaderToken = resolveFromAuthorizationHeader(request); | ||
final String parameterToken = isParameterTokenSupportedForRequest(request) | ||
? resolveFromRequestParameters(request) : null; | ||
if (authorizationHeaderToken != null) { | ||
if (parameterToken != null) { | ||
final BearerTokenError error = BearerTokenErrors | ||
.invalidRequest("Found multiple bearer tokens in the request"); | ||
throw new OAuth2AuthenticationException(error); | ||
} | ||
return authorizationHeaderToken; | ||
} | ||
if (parameterToken != null && isParameterTokenEnabledForRequest(request)) { | ||
return parameterToken; | ||
} | ||
return null; | ||
} | ||
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private String resolveFromAuthorizationHeader(HttpServletRequest request) { | ||
String authorization = request.getHeader(this.bearerTokenHeaderName); | ||
if (!StringUtils.startsWithIgnoreCase(authorization, "bearer")) { | ||
return null; | ||
} | ||
Matcher matcher = authorizationPattern.matcher(authorization); | ||
if (!matcher.matches()) { | ||
BearerTokenError error = BearerTokenErrors.invalidToken("Bearer token is malformed"); | ||
throw new OAuth2AuthenticationException(error); | ||
} | ||
return matcher.group("token"); | ||
} | ||
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private boolean isParameterTokenEnabledForRequest(HttpServletRequest request) { | ||
return ((this.allowFormEncodedBodyParameter && isFormEncodedRequest(request) && !isGetRequest(request) | ||
&& !hasAccessTokenInQueryString(request)) || (this.allowUriQueryParameter && isGetRequest(request))); | ||
} | ||
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private static String resolveFromRequestParameters(HttpServletRequest request) { | ||
String[] values = request.getParameterValues(ACCESS_TOKEN_PARAMETER_NAME); | ||
if (values == null || values.length == 0) { | ||
return null; | ||
} | ||
if (values.length == 1) { | ||
return values[0]; | ||
} | ||
BearerTokenError error = BearerTokenErrors.invalidRequest("Found multiple bearer tokens in the request"); | ||
throw new OAuth2AuthenticationException(error); | ||
} | ||
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private boolean isParameterTokenSupportedForRequest(final HttpServletRequest request) { | ||
return isFormEncodedRequest(request) || isGetRequest(request); | ||
} | ||
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private boolean isGetRequest(HttpServletRequest request) { | ||
return HttpMethod.GET.name().equals(request.getMethod()); | ||
} | ||
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private boolean isFormEncodedRequest(HttpServletRequest request) { | ||
return MediaType.APPLICATION_FORM_URLENCODED_VALUE.equals(request.getContentType()); | ||
} | ||
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private static boolean hasAccessTokenInQueryString(HttpServletRequest request) { | ||
return (request.getQueryString() != null) && request.getQueryString().contains(ACCESS_TOKEN_PARAMETER_NAME); | ||
} | ||
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/** | ||
* Set if transport of access token using URI query parameter is supported. Defaults | ||
* to {@code false}. | ||
* | ||
* The spec recommends against using this mechanism for sending bearer tokens, and | ||
* even goes as far as stating that it was only included for completeness. | ||
* @param allowUriQueryParameter if the URI query parameter is supported | ||
*/ | ||
public void setAllowUriQueryParameter(boolean allowUriQueryParameter) { | ||
this.allowUriQueryParameter = allowUriQueryParameter; | ||
} | ||
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/** | ||
* Set this value to configure what header is checked when resolving a Bearer Token. | ||
* This value is defaulted to {@link HttpHeaders#AUTHORIZATION}. | ||
* | ||
* This allows other headers to be used as the Bearer Token source such as | ||
* {@link HttpHeaders#PROXY_AUTHORIZATION} | ||
* @param bearerTokenHeaderName the header to check when retrieving the Bearer Token. | ||
*/ | ||
public void setBearerTokenHeaderName(String bearerTokenHeaderName) { | ||
this.bearerTokenHeaderName = bearerTokenHeaderName; | ||
} | ||
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/** | ||
* Set if transport of access token using form-encoded body parameter is supported. | ||
* Defaults to {@code false}. | ||
* @param allowFormEncodedBodyParameter if the form-encoded body parameter is | ||
* supported | ||
*/ | ||
public void setAllowFormEncodedBodyParameter(boolean allowFormEncodedBodyParameter) { | ||
this.allowFormEncodedBodyParameter = allowFormEncodedBodyParameter; | ||
} | ||
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/** | ||
* Set the {@link AuthenticationDetailsSource} to use. Defaults to | ||
* {@link WebAuthenticationDetailsSource}. | ||
* @param authenticationDetailsSource the {@code AuthenticationDetailsSource} to use | ||
*/ | ||
public void setAuthenticationDetailsSource( | ||
AuthenticationDetailsSource<HttpServletRequest, ?> authenticationDetailsSource) { | ||
Assert.notNull(authenticationDetailsSource, "authenticationDetailsSource cannot be null"); | ||
this.authenticationDetailsSource = authenticationDetailsSource; | ||
} | ||
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} |
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