feat: Adding new drafting token with JWT Rust plugin

plugins/samples/drafting_jwt_token/BUILD

@@ -0,0 +1,22 @@
+load("//:plugins.bzl", "proxy_wasm_plugin_rust", "proxy_wasm_tests")
+
+licenses(["notice"])  # Apache 2
+
+proxy_wasm_plugin_rust(
+    name = "plugin_rust.wasm",
+    srcs = ["plugin.rs"],
+    deps = [
+        "//bazel/cargo/remote:log",
+        "//bazel/cargo/remote:proxy-wasm",
+    ],
+)
+
+proxy_wasm_tests(
+    name = "tests",
+    config = ":publickey.pem",
+    plugins = [
+        ":plugin_cpp.wasm",
+        ":plugin_go.wasm",
+    ],
+    tests = ":tests.textpb",
+)

plugins/samples/drafting_jwt_token/Cargo.toml

@@ -0,0 +1,41 @@
+# Copyright 2025 Google LLC
+#
+# 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
+#
+#     http://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.
+
+[package]
+name = "jwt-generator-plugin"
+version = "1.0.0"
+edition = "2021"
+authors = ["Google Cloud Service Extensions"]
+description = "JWT Token Generator Plugin for Google Cloud Service Extensions"
+license = "Apache-2.0"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+proxy-wasm = "0.2.2"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+hmac = "0.12"
+sha2 = "0.10"
+base64 = "0.22"
+
+[profile.release]
+opt-level = 3
+lto = true
+codegen-units = 1
+strip = true
+
+[profile.dev]
+opt-level = 0

plugins/samples/drafting_jwt_token/Makefile

@@ -0,0 +1,214 @@
+# Copyright 2025 Google LLC
+#
+# 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
+#
+#     http://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.
+
+.PHONY: build clean test deploy update update-config check-rust setup fmt lint info help
+
+PLUGIN_NAME := jwt_generator
+WASM_FILE := target/wasm32-wasi/release/jwt_generator_plugin.wasm
+CONFIG_FILE := config.json
+
+# Build the WebAssembly plugin
+build:
+	@echo "Building JWT Generator Plugin (Rust)..."
+	cargo build --target=wasm32-wasi --release
+	@echo "Build complete: $(WASM_FILE)"
+
+# Clean build artifacts
+clean:
+	@echo "Cleaning build artifacts..."
+	cargo clean
+	@echo "Clean complete"
+
+# Run tests
+test:
+	@echo "Running tests..."
+	cargo test
+
+# Build with debug symbols
+build-debug:
+	@echo "Building JWT Generator Plugin with debug symbols..."
+	cargo build --target=wasm32-wasi
+	@echo "Debug build complete"
+
+# Check code without building
+check:
+	@echo "Checking code..."
+	cargo check --target=wasm32-wasi
+
+# Validate the configuration file
+validate-config:
+	@echo "Validating configuration..."
+	@if [ ! -f $(CONFIG_FILE) ]; then \
+		echo "Error: $(CONFIG_FILE) not found"; \
+		exit 1; \
+	fi
+	@jq empty $(CONFIG_FILE) 2>/dev/null && echo "Configuration valid" || (echo "Error: Invalid JSON in $(CONFIG_FILE)" && exit 1)
+
+# Deploy to Google Cloud (requires gcloud CLI)
+deploy: build validate-config
+	@echo "Deploying JWT Generator Plugin to Google Cloud..."
+	@if [ -z "$(EXTENSION_NAME)" ]; then \
+		echo "Error: EXTENSION_NAME not set. Usage: make deploy EXTENSION_NAME=jwt-extension"; \
+		exit 1; \
+	fi
+	gcloud service-extensions deploy $(EXTENSION_NAME) \
+		--wasm-file=$(WASM_FILE) \
+		--config-file=$(CONFIG_FILE) \
+		--location=us-central1
+	@echo "Deployment complete"
+
+# Update existing deployment
+update: build validate-config
+	@echo "Updating JWT Generator Plugin deployment..."
+	@if [ -z "$(EXTENSION_NAME)" ]; then \
+		echo "Error: EXTENSION_NAME not set. Usage: make update EXTENSION_NAME=jwt-extension"; \
+		exit 1; \
+	fi
+	gcloud service-extensions update $(EXTENSION_NAME) \
+		--wasm-file=$(WASM_FILE) \
+		--config-file=$(CONFIG_FILE) \
+		--location=us-central1
+	@echo "Update complete"
+
+# Update only configuration (no code changes)
+update-config: validate-config
+	@echo "Updating configuration only..."
+	@if [ -z "$(EXTENSION_NAME)" ]; then \
+		echo "Error: EXTENSION_NAME not set. Usage: make update-config EXTENSION_NAME=jwt-extension"; \
+		exit 1; \
+	fi
+	gcloud service-extensions update $(EXTENSION_NAME) \
+		--config-file=$(CONFIG_FILE) \
+		--location=us-central1
+	@echo "Configuration update complete"
+
+# Check if Rust and wasm32-wasi target are installed
+check-rust:
+	@which cargo > /dev/null || (echo "Error: Rust not found. Install from https://rustup.rs/" && exit 1)
+	@echo "Rust found: $$(rustc --version)"
+	@rustup target list --installed | grep -q wasm32-wasi || (echo "Installing wasm32-wasi target..." && rustup target add wasm32-wasi)
+	@echo "wasm32-wasi target installed"
+
+# Setup development environment
+setup: check-rust
+	@echo "Setting up development environment..."
+	rustup target add wasm32-wasi
+	cargo fetch
+	@echo "Setup complete"
+
+# Format Rust code
+fmt:
+	@echo "Formatting Rust code..."
+	cargo fmt
+	@echo "Formatting complete"
+
+# Run Rust linter
+lint:
+	@echo "Running linter..."
+	cargo clippy --target=wasm32-wasi -- -D warnings
+
+# Run cargo fix
+fix:
+	@echo "Running cargo fix..."
+	cargo fix --target=wasm32-wasi --allow-dirty
+
+# Build documentation
+doc:
+	@echo "Building documentation..."
+	cargo doc --no-deps --open
+
+# Display plugin information
+info:
+	@echo "Plugin Information:"
+	@echo "  Name: $(PLUGIN_NAME)"
+	@echo "  WASM File: $(WASM_FILE)"
+	@echo "  Config File: $(CONFIG_FILE)"
+	@if [ -f $(WASM_FILE) ]; then \
+		echo "  WASM Size: $$(wc -c < $(WASM_FILE)) bytes"; \
+		echo "  WASM Size (Human): $$(ls -lh $(WASM_FILE) | awk '{print $$5}')"; \
+	else \
+		echo "  WASM Size: Not built yet"; \
+	fi
+
+# Optimize WASM file (additional optimization with wasm-opt)
+optimize: build
+	@echo "Optimizing WASM file..."
+	@which wasm-opt > /dev/null || (echo "Warning: wasm-opt not found. Install from https://github.com/WebAssembly/binaryen" && exit 0)
+	wasm-opt -Oz $(WASM_FILE) -o $(WASM_FILE).opt
+	mv $(WASM_FILE).opt $(WASM_FILE)
+	@echo "Optimization complete"
+
+# Run benchmarks
+bench:
+	@echo "Running benchmarks..."
+	cargo bench --target=wasm32-wasi
+
+# Update dependencies
+update-deps:
+	@echo "Updating dependencies..."
+	cargo update
+	@echo "Dependencies updated"
+
+# Security audit
+audit:
+	@echo "Running security audit..."
+	@which cargo-audit > /dev/null || cargo install cargo-audit
+	cargo audit
+
+# Show outdated dependencies
+outdated:
+	@echo "Checking for outdated dependencies..."
+	@which cargo-outdated > /dev/null || cargo install cargo-outdated
+	cargo outdated
+
+# Show help
+help:
+	@echo "JWT Generator Plugin (Rust) - Makefile Commands"
+	@echo ""
+	@echo "Build Commands:"
+	@echo "  make build              Build the WASM plugin (release)"
+	@echo "  make build-debug        Build with debug symbols"
+	@echo "  make check              Check code without building"
+	@echo "  make clean              Remove build artifacts"
+	@echo "  make optimize           Build and optimize with wasm-opt"
+	@echo ""
+	@echo "Test Commands:"
+	@echo "  make test               Run Rust tests"
+	@echo "  make bench              Run benchmarks"
+	@echo "  make validate-config    Validate configuration file"
+	@echo ""
+	@echo "Deployment Commands:"
+	@echo "  make deploy EXTENSION_NAME=jwt-extension    Deploy to Google Cloud"
+	@echo "  make update EXTENSION_NAME=jwt-extension    Update existing deployment"
+	@echo "  make update-config EXTENSION_NAME=jwt-extension  Update configuration only"
+	@echo ""
+	@echo "Development Commands:"
+	@echo "  make setup              Setup development environment"
+	@echo "  make fmt                Format Rust code"
+	@echo "  make lint               Run clippy linter"
+	@echo "  make fix                Run cargo fix"
+	@echo "  make doc                Build and open documentation"
+	@echo "  make info               Display plugin information"
+	@echo ""
+	@echo "Maintenance Commands:"
+	@echo "  make update-deps        Update dependencies"
+	@echo "  make audit              Run security audit"
+	@echo "  make outdated           Check for outdated dependencies"
+	@echo ""
+	@echo "Examples:"
+	@echo "  make build"
+	@echo "  make deploy EXTENSION_NAME=my-jwt-extension"
+	@echo "  make update-config EXTENSION_NAME=my-jwt-extension"
+
+.DEFAULT_GOAL := help