Add support for S3-compatible storage in Result Uploader

- Implemented support for S3-compatible cloud storage, including but not limited to AWS S3, Alibaba Cloud OSS, and others.

For the problem description, please visit HCK-CI#471

Signed-off-by: Zhang JianMing zhangjianming.zjm@alibaba-inc.com

lib/resultuploaders/s3/s3.json

@@ -0,0 +1,5 @@
+{
+    "bucket_name": "auto-hck-result",
+    "region":  "us-east-1",
+    "endpoint": "s3.amazonaws.com"
+}

lib/resultuploaders/s3/s3.rb

@@ -0,0 +1,143 @@
+# frozen_string_literal: true
+
+module AutoHCK
+  # S3 class for managing interactions with S3-compatible storage services.
+  # This class is designed to work with services that are compatible with the S3 API,
+  # including AWS S3 and Alibaba Cloud OSS.
+  class S3
+    CONFIG_JSON = 'lib/resultuploaders/s3/s3.json'
+    INDEX_FILE_NAME = 'index.html'
+
+    include Helper
+
+    # Provides read access to the URL for the index.html file.
+    #
+    # In the context of S3 compatibility, there is no concept of folders.
+    # The `url` will point to an index.html file that records the paths of all files.
+    # This allows `index.html` to be displayed directly in HTML format.
+    #
+    # Note: While AWS S3 supports this behavior of rendering HTML files directly,
+    # not all S3-compatible storage services do. For example, Alibaba Cloud OSS
+    # has security restrictions on its default domain that may require files to be
+    # downloaded rather than rendered directly, thus preventing HTML files from being displayed.
+    attr_reader :url
+
+    def initialize(project)
+      tag = project.engine_tag
+      timestamp = project.timestamp
+      repo = project.config['repository']
+      @path = "#{repo}/CI/#{tag}-#{timestamp}"
+
+      @logger = project.logger
+
+      @bucket = new_bucket
+
+      @index_obj = @bucket.object("#{@path}/#{INDEX_FILE_NAME}")
+      @index_template = ERB.new(File.read('lib/templates/index.html.erb'))
+      @filenames = []
+    end
+
+    def html_url; end
+
+    # The current exception handling only logs errors without any additional recovery or fallback mechanisms.
+    # Rescue only Aws::Errors::ServiceError and Seahorse::Client::NetworkingError,
+    # as rescuing StandardError may suppress other programming errors (e.g., NoMethodError).
+    # This approach focuses on handling networking errors and those reported by the storage service.
+    # Future enhancements may include more robust error handling strategies and raising a special error class
+    # instead of just logging when we need to handle errors in callers.
+    def handle_exceptions(where)
+      yield
+    rescue Aws::Errors::ServiceError, Seahorse::Client::NetworkingError => e
+      @logger.warn("S3 #{where} error: #{e.detailed_message}")
+      false
+    end
+
+    # These methods are intentionally left blank to maintain the interface,
+    # as S3-compatible does not require this function. It prevents external calls
+    # from causing errors while adhering to the expected API structure.
+    def ask_token; end
+
+    def connect
+      true
+    end
+
+    def create_project_folder
+      handle_exceptions(__method__) do
+        generate_index
+        @url = @index_obj.public_url
+        @logger.info("S3 project folder created: #{@url}")
+        true
+      end
+    end
+
+    def upload_file(l_path, r_name)
+      handle_exceptions(__method__) do
+        r_path = "#{@path}/#{r_name}"
+        type = 'text/html' if r_name.end_with?('.html')
+        obj = @bucket.object(r_path)
+        obj.upload_file(l_path, content_type: type)
+        @filenames << r_name
+        generate_index
+        @logger.info("S3 file uploaded: #{r_path}")
+        true
+      end
+    end
+
+    def update_file_content(content, r_name)
+      handle_exceptions(__method__) do
+        r_path = "#{@path}/#{r_name}"
+        obj = @bucket.object(r_path)
+        obj.put(body: content)
+        @logger.info("S3 file content updated: #{r_path}")
+        true
+      end
+    end
+
+    def delete_file(r_name)
+      handle_exceptions(__method__) do
+        r_path = "#{@path}/#{r_name}"
+        obj = @bucket.object(r_path)
+        obj.delete
+        @filenames.delete(r_name)
+        generate_index
+        @logger.info("S3 file deleted: #{r_path}")
+        true
+      end
+    end
+
+    def close; end
+
+    private
+
+    def new_bucket
+      access_key_id = ENV.fetch('AUTOHCK_S3_ACCESS_KEY_ID')
+      secret_access_key = ENV.fetch('AUTOHCK_S3_SECRET_ACCESS_KEY')
+
+      config = Json.read_json(CONFIG_JSON, @logger)
+      region = config['region']
+      bucket_name = config['bucket_name']
+      endpoint = config['endpoint']
+
+      s3_resource = Aws::S3::Resource.new(
+        access_key_id:,
+        secret_access_key:,
+        region:,
+        endpoint: "https://#{endpoint}"
+      )
+
+      s3_resource.bucket(bucket_name)
+    end
+
+    def generate_index
+      handle_exceptions(__method__) do
+        index_data = {
+          'path' => @path,
+          'filenames' => @filenames,
+          'bucket' => @bucket
+        }
+        @index_obj.put(body: @index_template.result_with_hash(index_data), content_type: 'text/html')
+        true
+      end
+    end
+  end
+end

lib/templates/index.html.erb

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+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title><%= path %></title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/css/bootstrap.min.css" rel="stylesheet">
+</head>
+<body>
+    <div class="container">
+        <h1 class="text-center mt-5"><%= path %></h1>
+        <ul class="list-group mt-3">
+            <% filenames.each do |filename| %>
+                <% url = bucket.object("#{path}/#{filename}").public_url %>
+                <li class="list-group-item">
+                    <a href="<%= url %>"><%= filename %></a>
+                </li>
+            <% end %>
+        </ul>
+    </div>
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js"></script>
+</body>
+</html>