[cpp][pistache-server] Add extraction and forwarding of credentials for HTTP Basic protected endpoints.

Author: mowijo

modules/openapi-generator/src/main/resources/cpp-pistache-server/api-header.mustache

@@ -79,7 +79,7 @@ private:
     {{#allParams}}
     /// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
     {{/allParams}}
-    virtual void {{operationIdSnakeCase}}({{#allParams}}const {{#isModel}}{{^isOptional}}{{modelNamespace}}::{{/isOptional}}{{/isModel}}{{{dataType}}} &{{paramName}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}Pistache::Http::ResponseWriter &response) = 0;
+    virtual void {{operationIdSnakeCase}}({{#authMethods}}{{#isBasicBasic}}const std::string &username, const std::string &password, {{/isBasicBasic}}{{/authMethods}} {{#allParams}}const {{#isModel}}{{^isOptional}}{{modelNamespace}}::{{/isOptional}}{{/isModel}}{{{dataType}}} &{{paramName}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}Pistache::Http::ResponseWriter &response) = 0;
     {{/vendorExtensions.x-codegen-pistache-is-parsing-supported}}
     {{^vendorExtensions.x-codegen-pistache-is-parsing-supported}}
     virtual void {{operationIdSnakeCase}}(const Pistache::Rest::Request &request, Pistache::Http::ResponseWriter &response) = 0;

modules/openapi-generator/src/main/resources/cpp-pistache-server/api-impl-header.mustache

@@ -35,7 +35,7 @@ public:
 
     {{#operation}}
     {{#vendorExtensions.x-codegen-pistache-is-parsing-supported}}
-    void {{operationIdSnakeCase}}({{#allParams}}const {{{dataType}}} &{{paramName}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}Pistache::Http::ResponseWriter &response);
+    void {{operationIdSnakeCase}}({{#authMethods}}{{#isBasicBasic}}const std::string &username, const std::string &password,{{/isBasicBasic}}{{/authMethods}}{{#allParams}}const {{{dataType}}} &{{paramName}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}Pistache::Http::ResponseWriter &response);
     {{/vendorExtensions.x-codegen-pistache-is-parsing-supported}}
     {{^vendorExtensions.x-codegen-pistache-is-parsing-supported}}
     void {{operationIdSnakeCase}}(const Pistache::Rest::Request &request, Pistache::Http::ResponseWriter &response);

modules/openapi-generator/src/main/resources/cpp-pistache-server/api-impl-source.mustache

@@ -17,7 +17,7 @@ using namespace {{modelNamespace}};{{/hasModelImport}}
 
 {{#operation}}
 {{#vendorExtensions.x-codegen-pistache-is-parsing-supported}}
-void {{classname}}Impl::{{operationIdSnakeCase}}({{#allParams}}const {{{dataType}}} &{{paramName}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}Pistache::Http::ResponseWriter &response) {
+void {{classname}}Impl::{{operationIdSnakeCase}}({{#authMethods}}{{#isBasicBasic}}const std::string &username, const std::string &password,{{/isBasicBasic}}{{/authMethods}}{{#allParams}}const {{{dataType}}} &{{paramName}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}Pistache::Http::ResponseWriter &response) {
     response.send(Pistache::Http::Code::Ok, "Do some magic\n");
 }
 {{/vendorExtensions.x-codegen-pistache-is-parsing-supported}}

modules/openapi-generator/src/main/resources/cpp-pistache-server/api-source.mustache

@@ -119,9 +119,26 @@ void {{classname}}::{{operationIdSnakeCase}}_handler(const Pistache::Rest::Reque
     }
 
     try {
+
     {{/bodyParam}}
     {{/hasBodyParam}}
-        this->{{operationIdSnakeCase}}({{#allParams}}{{paramName}}{{^-last}}, {{/-last}}{{/allParams}}{{#hasParams}}, {{/hasParams}}response);
+        {{#authMethods}}{{#isBasicBasic}}
+        auto basicAuthHeader = request.headers().tryGet<Pistache::Http::Header::Authorization>();
+
+        if( (!basicAuthHeader) || (basicAuthHeader->getMethod() != Pistache::Http::Header::Authorization::Method::Basic))
+        {
+            response.send(Pistache::Http::Code::Unauthorized, "");
+            return;
+        }
+        const std::string username(basicAuthHeader->getBasicUser());
+        const std::string password(basicAuthHeader->getBasicPassword());
+        {{/isBasicBasic}}{{/authMethods}}
+
+        {{#authMethods}}{{#isBasicBearer}}
+        /* BASIC BEARER */
+        {{/isBasicBearer}}{{/authMethods}}
+
+    this->{{operationIdSnakeCase}}({{#authMethods}}{{#isBasicBasic}}username, password,{{/isBasicBasic}}{{/authMethods}}{{#allParams}}{{paramName}}, {{/allParams}}response);
     {{/vendorExtensions.x-codegen-pistache-is-parsing-supported}}
     {{^vendorExtensions.x-codegen-pistache-is-parsing-supported}}
     try {