Class: WEBrick::HTTPServlet::DefaultFileHandler
- Inherits:
-
AbstractServlet
- Object
- AbstractServlet
- WEBrick::HTTPServlet::DefaultFileHandler
- Defined in:
- lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/webrick-1.7.0/lib/webrick/httpservlet/filehandler.rb
Overview
Servlet for serving a single file. You probably want to use the FileHandler servlet instead as it handles directories and fancy indexes.
Example:
server.mount('/my_page.txt', WEBrick::HTTPServlet::DefaultFileHandler,
'/path/to/my_page.txt')
This servlet handles If-Modified-Since and Range requests.
Instance Method Summary collapse
-
#do_GET(req, res) ⇒ Object
:stopdoc:.
-
#initialize(server, local_path) ⇒ DefaultFileHandler
constructor
Creates a DefaultFileHandler instance for the file at
local_path
. - #make_partial_content(req, res, filename, filesize) ⇒ Object
-
#multipart_body(body, parts, boundary, mtype, filesize) ⇒ Object
returns a lambda for webrick/httpresponse.rb send_body_proc.
- #not_modified?(req, res, mtime, etag) ⇒ Boolean
- #prepare_range(range, filesize) ⇒ Object
Methods inherited from AbstractServlet
#do_HEAD, #do_OPTIONS, get_instance, #service
Constructor Details
#initialize(server, local_path) ⇒ DefaultFileHandler
Creates a DefaultFileHandler instance for the file at local_path
.
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/webrick-1.7.0/lib/webrick/httpservlet/filehandler.rb', line 37 def initialize(server, local_path) super(server, local_path) @local_path = local_path end |
Instance Method Details
#do_GET(req, res) ⇒ Object
:stopdoc:
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/webrick-1.7.0/lib/webrick/httpservlet/filehandler.rb', line 44 def do_GET(req, res) st = File::stat(@local_path) mtime = st.mtime res['etag'] = sprintf("%x-%x-%x", st.ino, st.size, st.mtime.to_i) if not_modified?(req, res, mtime, res['etag']) res.body = '' raise HTTPStatus::NotModified elsif req['range'] make_partial_content(req, res, @local_path, st.size) raise HTTPStatus::PartialContent else mtype = HTTPUtils::mime_type(@local_path, @config[:MimeTypes]) res['content-type'] = mtype res['content-length'] = st.size.to_s res['last-modified'] = mtime.httpdate res.body = File.open(@local_path, "rb") end end |
#make_partial_content(req, res, filename, filesize) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/webrick-1.7.0/lib/webrick/httpservlet/filehandler.rb', line 118 def make_partial_content(req, res, filename, filesize) mtype = HTTPUtils::mime_type(filename, @config[:MimeTypes]) unless ranges = HTTPUtils::parse_range_header(req['range']) raise HTTPStatus::BadRequest, "Unrecognized range-spec: \"#{req['range']}\"" end File.open(filename, "rb"){|io| if ranges.size > 1 time = Time.now boundary = "#{time.sec}_#{time.usec}_#{Process::pid}" parts = [] ranges.each {|range| prange = prepare_range(range, filesize) next if prange[0] < 0 parts.concat(prange) } raise HTTPStatus::RequestRangeNotSatisfiable if parts.empty? res["content-type"] = "multipart/byteranges; boundary=#{boundary}" if req.http_version < '1.1' res['connection'] = 'close' else res.chunked = true end res.body = multipart_body(io.dup, parts, boundary, mtype, filesize) elsif range = ranges[0] first, last = prepare_range(range, filesize) raise HTTPStatus::RequestRangeNotSatisfiable if first < 0 res['content-type'] = mtype res['content-range'] = "bytes #{first}-#{last}/#{filesize}" res['content-length'] = (last - first + 1).to_s res.body = io.dup else raise HTTPStatus::BadRequest end } end |
#multipart_body(body, parts, boundary, mtype, filesize) ⇒ Object
returns a lambda for webrick/httpresponse.rb send_body_proc
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/webrick-1.7.0/lib/webrick/httpservlet/filehandler.rb', line 90 def multipart_body(body, parts, boundary, mtype, filesize) lambda do |socket| begin begin first = parts.shift last = parts.shift socket.write( "--#{boundary}#{CRLF}" \ "Content-Type: #{mtype}#{CRLF}" \ "Content-Range: bytes #{first}-#{last}/#{filesize}#{CRLF}" \ "#{CRLF}" ) begin IO.copy_stream(body, socket, last - first + 1, first) rescue NotImplementedError body.seek(first, IO::SEEK_SET) IO.copy_stream(body, socket, last - first + 1) end socket.write(CRLF) end while parts[0] socket.write("--#{boundary}--#{CRLF}") ensure body.close end end end |
#not_modified?(req, res, mtime, etag) ⇒ Boolean
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/webrick-1.7.0/lib/webrick/httpservlet/filehandler.rb', line 64 def not_modified?(req, res, mtime, etag) if ir = req['if-range'] begin if Time.httpdate(ir) >= mtime return true end rescue if HTTPUtils::split_header_value(ir).member?(res['etag']) return true end end end if (ims = req['if-modified-since']) && Time.parse(ims) >= mtime return true end if (inm = req['if-none-match']) && HTTPUtils::split_header_value(inm).member?(res['etag']) return true end return false end |
#prepare_range(range, filesize) ⇒ Object
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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/webrick-1.7.0/lib/webrick/httpservlet/filehandler.rb', line 155 def prepare_range(range, filesize) first = range.first < 0 ? filesize + range.first : range.first return -1, -1 if first < 0 || first >= filesize last = range.last < 0 ? filesize + range.last : range.last last = filesize - 1 if last >= filesize return first, last end |