rails media file stream通过send_data或send_file方法接受字节范围请求

我有以下问题。 声音在公共文件夹中隐藏,因为只有某些用户应该有权访问声音文件。 所以我做了一个特定的方法,它就像一个声音url,但首先计算,是否允许当前用户访问该文件。

该文件由send_data方法发送。 问题是,如果它的工作原理我工作得很慢……我用来播放声音的jplayer插件的开发者告诉我,我应该能够接受字节范围请求以使其正常工作…

如何通过send_data或send_file发送文件在rails控制器中执行此操作?

谢谢,马库斯

我已经能够使用send_file成功提供文件了。 虽然我有一个故障,寻找歌曲的早期部分会导致一个新的请求,使歌曲从0:00重新开始,而不是从搜索栏的真实位置。 到目前为止,这是我为我工作的:

file_begin = 0 file_size = @media.file_file_size file_end = file_size - 1 if !request.headers["Range"] status_code = "200 OK" else status_code = "206 Partial Content" match = request.headers['range'].match(/bytes=(\d+)-(\d*)/) if match file_begin = match[1] file_end = match[1] if match[2] && !match[2].empty? end response.header["Content-Range"] = "bytes " + file_begin.to_s + "-" + file_end.to_s + "/" + file_size.to_s end response.header["Content-Length"] = (file_end.to_i - file_begin.to_i + 1).to_s response.header["Last-Modified"] = @media.file_updated_at.to_s response.header["Cache-Control"] = "public, must-revalidate, max-age=0" response.header["Pragma"] = "no-cache" response.header["Accept-Ranges"]= "bytes" response.header["Content-Transfer-Encoding"] = "binary" send_file(DataAccess.getUserMusicDirectory(current_user.public_token) + @media.sub_path, :filename => @media.file_file_name, :type => @media.file_content_type, :disposition => "inline", :status => status_code, :stream => 'true', :buffer_size => 4096) 

这是我的版本。 我使用gem’ogginfo-rb’来计算正确提供ogg文件所需的持续时间。 ps我总是有三种格式 – wav,mp3,ogg。

 the_file = File.open(file_path) file_begin = 0 file_size = the_file.size file_end = file_size - 1 if request.headers['Range'] status_code = :partial_content match = request.headers['range'].match(/bytes=(\d+)-(\d*)/) if match file_begin = match[1] file_end = match[1] if match[2] and not match[2].empty? end response.headers['Content-Range'] = "bytes #{file_begin}-#{file_end.to_i + (match[2] == '1' ? 1 : 0)}/#{file_size}" else status_code = :ok end response.headers['Content-Length'] = (file_end.to_i - file_begin.to_i + 1).to_s response.headers['Last-Modified'] = the_file.mtime response.headers['Cache-Control'] = 'public, must-revalidate, max-age=0' response.headers['Pragma'] = 'no-cache' response.headers['Accept-Ranges'] = 'bytes' response.headers['Content-Transfer-Encoding'] = 'binary' require 'ogginfo-rb' ogginfo = Ogg::Info::open(the_file.path.gsub(/.mp3|.wav/,'.ogg')) duration = ogginfo.duration.to_f response.headers['Content-Duration'] = duration response.headers['X-Content-Duration'] = duration send_file file_path, filename: "#{call.id}.#{ext}", type: Mime::Type.lookup_by_extension(ext), status: status_code, disposition: 'inline', stream: 'true', buffer_size: 32768 

另一个修改版本 – 我试图下载一个zip文件作为二进制内容,这对我有用 –

  def byte_range_response (request, response, content) file_begin = 0 file_size = content.bytesize file_end = file_size - 1 status_code = '206 Partial Content' match = request.headers['range'].match(/bytes=(\d+)-(\d*)/) if match file_begin = match[1] file_end = match[2] if match[2] && !match[2].empty? end content_length = file_end.to_i - file_begin.to_i + 1 response.header['Content-Range'] = 'bytes ' + file_begin.to_s + '-' + file_end.to_s + '/' + file_size.to_s response.header['Content-Length'] = content_length.to_s response.header['Cache-Control'] = 'public, must-revalidate, max-age=0' response.header['Pragma'] = 'no-cache' response.header['Accept-Ranges']= 'bytes' response.header['Content-Transfer-Encoding'] = 'binary' send_data get_partial_content(content, content_length, file_begin.to_i), type: 'application/octet-stream', status: status_code end def get_partial_content(content, content_length, offset) test_file = Tempfile.new(['test-file', '.zip']) test_file.puts(content) partial_content = IO.binread(test_file.path, content_length, offset) test_file.close test_file.unlink partial_content end