Add modeling for gin

Author: joefarebrother

go/ql/lib/semmle/go/frameworks/Gin.qll

@@ -0,0 +1,24 @@
+/**
+ * Provides classes for modeling the `github.com/gin-gonic/gin` package.
+ */
+
+import go
+import semmle.go.concepts.HTTP
+
+/** Provides models for the `gin-gonic/gin` package. */
+module Gin {
+  /** Gets the package name `github.com/gin-gonic/gin`. */
+  string packagePath() { result = package("github.com/gin-gonic/gin", "") }
+
+  private class GinCookieWrite extends Http::CookieWrite::Range, DataFlow::MethodCallNode {
+    GinCookieWrite() { this.getTarget().hasQualifiedName(packagePath(), "Context", "SetCookie") }
+
+    override DataFlow::Node getName() { result = this.getArgument(0) }
+
+    override DataFlow::Node getValue() { result = this.getArgument(1) }
+
+    override DataFlow::Node getSecure() { result = this.getArgument(5) }
+
+    override DataFlow::Node getHttpOnly() { result = this.getArgument(6) }
+  }
+}