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AppSecurityConfig.java
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AppSecurityConfig.java
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package com.sap.refapps.espm.config;
import static org.springframework.http.HttpMethod.PUT;
import static org.springframework.http.HttpMethod.GET;
import static org.springframework.http.HttpMethod.POST;
import static org.springframework.http.HttpMethod.DELETE;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.core.convert.converter.Converter;
import org.springframework.security.authentication.AbstractAuthenticationToken;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.oauth2.jwt.Jwt;
import org.springframework.security.web.DefaultSecurityFilterChain;
import com.sap.cloud.security.xsuaa.XsuaaServiceConfiguration;
import com.sap.cloud.security.xsuaa.token.TokenAuthenticationConverter;
@Configuration
@Profile("cloud")
@EnableWebSecurity(debug = true)
// Avoid using (debug = true) in productive code
public class AppSecurityConfig {
@Autowired
XsuaaServiceConfiguration xsuaaServiceConfiguration;
// configure Spring Security, demand authentication and specific scopes
@Bean
public DefaultSecurityFilterChain configure(HttpSecurity http) throws Exception {
http.csrf().disable();
http.sessionManagement()
// session is created by approuter
.sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
// demand specific scopes depending on intended request
.authorizeHttpRequests()
// enable OAuth2 checks
.requestMatchers(GET, "/product.svc/api/v1/products/**").permitAll()
.requestMatchers(GET, "/product.svc/api/v1/stocks/**").authenticated()
.requestMatchers(PUT, "/product.svc/api/v1/stocks/**").hasAuthority("Update").anyRequest().denyAll()
.and().oauth2ResourceServer().jwt().jwtAuthenticationConverter(getJwtAuthoritiesConverter());
return http.build();
}
/**
* Customizes how GrantedAuthority are derived from a Jwt
*
* @returns jwt converter
*/
Converter<Jwt, AbstractAuthenticationToken> getJwtAuthoritiesConverter() {
var converter = new TokenAuthenticationConverter(xsuaaServiceConfiguration);
converter.setLocalScopeAsAuthorities(true);
return converter;
}
}