init project

app/controllers/admins/files_controller.rb

@@ -0,0 +1,51 @@
+class Admins::FilesController < Admins::BaseController
+  before_action :convert_file!, only: [:create]
+
+  def create
+    File.delete(file_path) if File.exist?(file_path) # 删除之前的文件
+
+    Util.write_file(@file, file_path)
+
+    render_ok(
+      source_id: params[:source_id],
+      source_type: params[:source_type].to_s,
+      suffix: params[:suffix].presence,
+      url: file_url
+    )
+  rescue StandardError => ex
+    logger_error(ex)
+    render_error('上传失败')
+  end
+
+  private
+
+  def convert_file!
+    max_size = 10 * 1024 * 1024 # 10M
+    if params[:file].class == ActionDispatch::Http::UploadedFile
+      @file = params[:file]
+      render_error('请上传文件') if @file.size.zero?
+      render_error('文件大小超过限制') if @file.size > max_size
+    else
+      file = params[:file].to_s.strip
+      return render_error('请上传正确的图片') if file.blank?
+      @file = Util.convert_base64_image(file, max_size: max_size)
+    end
+  rescue Base64ImageConverter::Error => ex
+    render_error(ex.message)
+  end
+
+  def file_path
+    @_file_path ||= begin
+      case params[:source_type].to_s
+      when 'Shixun' then
+        Util::FileManage.disk_filename('Shixun', params[:source_id], params[:suffix].presence)
+      else
+        Util::FileManage.disk_filename(params[:source_type].to_s, params[:source_id].to_s, params[:suffix].presence)
+      end
+    end
+  end
+
+  def file_url
+    Util::FileManage.disk_file_url(params[:source_type].to_s, params[:source_id].to_s, params[:suffix].presence)
+  end
+end