How to configure Spring Security to allow Swagger URL to be accessed without authentication

Question

My project has Spring Security   Main issue  Not able to access swagger URL at http   localhost 8080 api v2 api-docs  It says Missing or invalid Authorization header   Screenshot of the browser window My pom xml has the following entries   lt dependency gt       lt groupId gt io springfox lt  groupId gt       lt artifactId gt springfox-swagger2 lt  artifactId gt       lt version gt 2 4 0 lt  version gt   lt  dependency gt    lt dependency gt       lt groupId gt io springfox lt  groupId gt       lt artifactId gt springfox-swagger-ui lt  artifactId gt       lt version gt 2 4 0 lt  version gt   lt  dependency gt    SwaggerConfig     Configuration  EnableSwagger2 public class SwaggerConfig     Bean public Docket api         return new Docket DocumentationType SWAGGER 2  select                apis RequestHandlerSelectors any                 paths PathSelectors any                 build                apiInfo apiInfo        private ApiInfo apiInfo         ApiInfo apiInfo   new ApiInfo  My REST API    Some custom description of API     API TOS    Terms of service    myeaddress company com    License of API    API license URL        return apiInfo      AppConfig    Configuration  EnableWebMvc  ComponentScan basePackages      com musigma esp2      Import SwaggerConfig class  public class AppConfig extends WebMvcConfigurerAdapter                 Overrides               Override public void addInterceptors InterceptorRegistry registry        registry addInterceptor new LocaleChangeInterceptor         Override public void addResourceHandlers ResourceHandlerRegistry registry        registry addResourceHandler  swagger-ui html          addResourceLocations  classpath  META-INF resources          registry addResourceHandler   webjars             addResourceLocations  classpath  META-INF resources webjars         web xml entries    lt context-param gt       lt param-name gt contextConfigLocation lt  param-name gt       lt param-value gt          com musigma esp2 configuration AppConfig         com musigma esp2 configuration WebSecurityConfiguration         com musigma esp2 configuration PersistenceConfig         com musigma esp2 configuration ACLConfig         com musigma esp2 configuration SwaggerConfig      lt  param-value gt   lt  context-param gt    WebSecurityConfig    Configuration  EnableWebSecurity  EnableGlobalMethodSecurity prePostEnabled   true   ComponentScan basePackages      com musigma esp2 service    com musigma esp2 security     public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter    Override     protected void configure HttpSecurity httpSecurity  throws Exception           httpSecurity          csrf                disable            exceptionHandling                authenticationEntryPoint this unauthorizedHandler               and            sessionManagement                sessionCreationPolicy SessionCreationPolicy STATELESS               and            authorizeRequests                antMatchers   auth login     auth logout   permitAll                antMatchers   api      authenticated                anyRequest   authenticated                custom JSON based authentication by POST of   username    lt name gt    password    lt password gt    which sets the token header upon authentication         httpSecurity addFilterBefore loginFilter    UsernamePasswordAuthenticationFilter class               custom Token based authentication based on the header previously given to the client         httpSecurity addFilterBefore new StatelessTokenAuthenticationFilter tokenAuthenticationService   UsernamePasswordAuthenticationFilter class

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I am using Spring Boot 5  I have this controller that I want an unauthenticated user to invoke        Builds a form to send to devices     RequestMapping value      id  ViewFormit   method   RequestMethod GET   ResponseBody String doFormIT  PathVariable String id        try                 Get a list of forms applicable to the current user         FormService parent   new FormService      Here is what i did in the configuuration       Override    protected void configure HttpSecurity http  throws Exception       http              authorizeRequests                antMatchers                        registration                                  d    ViewFormit     Hope this helps

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More or less this page has answers but all are not at one place  I was dealing with the same issue and spent quite a good time on it  Now i have a better understanding and i would like to share it here   I Enabling Swagger ui with Spring websecurity   If you have enabled Spring Websecurity by default it will block all the requests to your application and returns 401  However for the swagger ui to load in the browser swagger-ui html makes several calls to collect data  The best way to debug is open swagger-ui html in a browser like google chrome  and use developer options  F12  key    You can see several calls made when the page loads and if the swagger-ui is not loading completely probably some of them are failing   you may need to tell Spring websecurity to ignore authentication for several swagger path patterns  I am using swagger-ui 2 9 2 and in my case below are the patterns that i had to ignore   However if you are using a different version your s might change  you may have to figure out yours with developer option in your browser as i said before    Configuration public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter    Override public void configure WebSecurity web  throws Exception       web ignoring   antMatchers   v2 api-docs     configuration ui                  swagger-resources        configuration        swagger-ui html                  webjars        csrf               II Enabling swagger ui with interceptor  Generally you may not want to intercept requests that are made by swagger-ui html  To exclude several patterns of swagger below is the code   Most of the cases pattern for web security and interceptor will be same     Configuration  EnableWebMvc public class RetrieveCiamInterceptorConfiguration implements WebMvcConfigurer     Autowired RetrieveInterceptor validationInterceptor    Override public void addInterceptors InterceptorRegistry registry         registry addInterceptor validationInterceptor  addPathPatterns             excludePathPatterns   v2 api-docs     configuration ui                  swagger-resources        configuration        swagger-ui html                  webjars        csrf             Override public void addResourceHandlers ResourceHandlerRegistry registry        registry addResourceHandler  swagger-ui html          addResourceLocations  classpath  META-INF resources          registry addResourceHandler   webjars             addResourceLocations  classpath  META-INF resources webjars            Since you may have to enable  EnableWebMvc to add interceptors you may also have to add resource handlers to swagger similar to i have done in the above code snippet

User · Answer

Some security config and you are ready with swagger open to all For Swagger V2  Configuration  EnableWebSecurity public class CabSecurityConfig extends WebSecurityConfigurerAdapter         private static final String   AUTH WHITELIST                    -- swagger ui              quot  v2 api-docs quot                 quot  swagger-resources    quot                 quot  configuration ui quot                quot  configuration security quot                 quot  swagger-ui html quot                quot  webjars    quot               Override     protected void configure HttpSecurity http  throws Exception                   here goes your custom security configuration         http authorizeRequests            antMatchers AUTH WHITELIST  permitAll       whitelist URL permitted         antMatchers  quot     quot   authenticated       others need auth           For Swagger V3  Configuration  EnableWebSecurity public class CabSecurityConfig extends WebSecurityConfigurerAdapter         private static final String   AUTH WHITELIST                    -- swagger ui              quot  v2 api-docs quot                quot  v3 api-docs quot                  quot  swagger-resources    quot                 quot  swagger-ui    quot                         Override     protected void configure HttpSecurity http  throws Exception                   here goes your custom security configuration         http authorizeRequests            antMatchers AUTH WHITELIST  permitAll       whitelist URL permitted         antMatchers  quot     quot   authenticated       others need auth

User · Answer

Adding this to your WebSecurityConfiguration class should do the trick    Configuration public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter         Override     public void configure WebSecurity web  throws Exception           web ignoring   antMatchers   v2 api-docs                                        configuration ui                                        swagger-resources                                           configuration security                                        swagger-ui html                                        webjars

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I had the same problem using Spring Boot 2 0 0 M7   Spring Security   Springfox 2 8 0  And I solved the problem using the following security configuration that allows public access to Swagger UI resources   Configuration  EnableWebSecurity  EnableGlobalMethodSecurity prePostEnabled   true  securedEnabled   true  public class SecurityConfiguration extends WebSecurityConfigurerAdapter        private static final String   AUTH WHITELIST                    -- Swagger UI v2              quot  v2 api-docs quot                quot  swagger-resources quot                quot  swagger-resources    quot                quot  configuration ui quot                quot  configuration security quot                quot  swagger-ui html quot                quot  webjars    quot                  -- Swagger UI v3  OpenAPI               quot  v3 api-docs    quot                quot  swagger-ui    quot                 other public endpoints of your API may be appended to this array               Override     protected void configure HttpSecurity http  throws Exception           http                         here goes your custom security configuration                 authorizeRequests                    antMatchers AUTH WHITELIST  permitAll        whitelist Swagger UI resources                        here goes your custom security configuration                 antMatchers  quot     quot   authenticated        require authentication for any endpoint that s not whitelisted

User · Answer

I updated with  configuration    and  swagger-resources    and it worked for me    Override public void configure WebSecurity web  throws Exception       web ignoring   antMatchers   v2 api-docs     configuration ui     swagger-resources        configuration        swagger-ui html     webjars

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Considering all of your API requests located with a url pattern of  api    you can tell spring to secure only this url pattern by using below configuration  Which means that you are telling spring what to secure instead of what to ignore    Override protected void configure HttpSecurity http  throws Exception     http      csrf   disable         authorizeRequests          antMatchers   api      authenticated          anyRequest   permitAll          and        httpBasic   and        sessionManagement   sessionCreationPolicy SessionCreationPolicy STATELESS

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Here s a complete solution for Swagger with Spring Security  We probably want to only enable Swagger in our development and QA environment and disable it in the production environment  So  I am using a property  prop swagger enabled  as a flag to bypass spring security authentication for swagger-ui only in development qa environment    Configuration  EnableSwagger2 public class SwaggerConfiguration extends WebSecurityConfigurerAdapter implements WebMvcConfigurer     Value    prop swagger enabled false    private boolean enableSwagger    Bean public Docket SwaggerConfig         return new Docket DocumentationType SWAGGER 2               enable enableSwagger               select                apis RequestHandlerSelectors basePackage  com your controller                 paths PathSelectors any                 build        Override public void configure WebSecurity web  throws Exception       if  enableSwagger            web ignoring   antMatchers   v2 api-docs                                    configuration ui                                    swagger-resources                                       configuration security                                    swagger-ui html                                    webjars           Override public void addResourceHandlers ResourceHandlerRegistry registry        if  enableSwagger            registry addResourceHandler  swagger-ui html   addResourceLocations  classpath  META-INF resources             registry addResourceHandler   webjars      addResourceLocations  classpath  META-INF resources webjars

User · Answer

if your springfox version higher than 2 5  should be add WebSecurityConfiguration as below    Override public void configure HttpSecurity http  throws Exception          TODO Auto-generated method stub     http authorizeRequests            antMatchers   v2 api-docs     swagger-resources configuration ui     swagger-resources     swagger-resources configuration security     swagger-ui html     webjars      permitAll            and            authorizeRequests            anyRequest            authenticated            and            csrf   disable

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For those who using a newer swagger 3 version org springdoc springdoc-openapi-ui   Configuration public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter         Override     public void configure WebSecurity web  throws Exception           web ignoring   antMatchers   v3 api-docs        swagger-ui html     swagger-ui

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Limiting only to Swagger related resources     antMatchers   v2 api-docs     swagger-resources        swagger-ui html     webjars springfox-swagger-ui

[spring-mvc] How to configure Spring Security to allow Swagger URL to be accessed without authentication

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