Initial commit

.gitignore

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+/.idea
+/.git

Dockerfile

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+# Start from the official Go image
+FROM golang:1.22-alpine
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy go mod and sum files
+COPY go.mod go.sum ./
+
+# Download all dependencies
+RUN go mod download
+
+# Copy the source code into the container
+COPY . .
+
+# Build the application
+RUN go build -o main .
+
+# Expose the port the app runs on
+EXPOSE 8080
+
+# Command to run the executable
+CMD ["./main"]

README.md

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+# OAuth Mock Server
+
+This is a simple OAuth 2.0 mock server implemented in Go. It's designed to simulate an OAuth 2.0 provider for testing purposes, especially in CI/CD environments.
+
+## Features
+
+- Simulates OAuth 2.0 authorization flow
+- Provides JWT access tokens
+- Returns static user information
+- Easy to configure via environment variables
+- Lightweight and easy to deploy
+
+## Prerequisites
+
+- Go 1.16 or higher
+- Docker (optional, for containerized deployment)
+
+## Configuration
+
+The server can be configured using the following environment variables:
+
+- `PORT`: The port on which the server will run (default: 8080)
+- `CLIENT_ID`: The client ID to use (default: "test-client")
+- `CLIENT_SECRET`: The client secret to use (default: "test-secret")
+
+## Running the Server
+
+### Locally
+
+1. Clone the repository:
+   ```
+   git clone https://github.com/yourusername/oauth-mock-server.git
+   cd oauth-mock-server
+   ```
+
+2. Run the server:
+   ```
+   go run main.go
+   ```
+
+### Using Docker
+
+1. Build the Docker image:
+   ```
+   docker build -t oauth-mock-server .
+   ```
+
+2. Run the container:
+   ```
+   docker run -p 8080:8080 -e CLIENT_ID=my-client -e CLIENT_SECRET=my-secret oauth-mock-server
+   ```
+
+## Usage
+
+1. Initiate the OAuth flow by sending a GET request to `/authorize` with the following parameters:
+   - `client_id`: Your client ID
+   - `redirect_uri`: Your callback URL
+   - `state`: A random state value for security
+
+2. The server will display a consent screen and automatically approve after 2 seconds, redirecting to your `redirect_uri` with an authorization code.
+
+3. Exchange the authorization code for an access token by sending a POST request to `/token` with the following parameters:
+   - `grant_type`: "authorization_code"
+   - `code`: The authorization code received in step 2
+   - `client_id`: Your client ID
+   - `client_secret`: Your client secret
+
+4. Use the received access token to make requests to the `/userinfo` endpoint by including it in the Authorization header:
+   ```
+   Authorization: Bearer <your_access_token>
+   ```
+
+## License
+
+This project is licensed under the MIT License.

go.mod

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+module github.com/shaharia-lab/oauth-mock-server
+
+go 1.22
+
+require (
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible
+	github.com/google/uuid v1.6.0
+)

go.sum

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+github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
+github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=