Class: Net::DAV::NetHttpHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/net/dav.rb

Direct Known Subclasses

CurlHandler

Constant Summary collapse

CNONCE = 
Digest::MD5.hexdigest("%x" % (Time.now.to_i + rand(65535))).slice(0, 8)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uri) ⇒ NetHttpHandler

Returns a new instance of NetHttpHandler.



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# File 'lib/net/dav.rb', line 38

def initialize(uri)
  @disable_basic_auth = false
  @uri = uri
  case @uri.scheme
  when "http"
    @http = Net::HTTP.new(@uri.host, @uri.port)
  when "https"
    @http = Net::HTTP.new(@uri.host, @uri.port)
    @http.use_ssl = true
    self.verify_server = true
  else
    raise "unknown uri scheme"
  end
end

Instance Attribute Details

#disable_basic_auth ⇒ Object

Returns the value of attribute disable_basic_auth.



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# File 'lib/net/dav.rb', line 26

def disable_basic_auth
  @disable_basic_auth
end

#last_status ⇒ Object (readonly)

Returns the value of attribute last_status.



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# File 'lib/net/dav.rb', line 27

def last_status
  @last_status
end

#pass=(value) ⇒ Object (writeonly)

Sets the attribute pass

Parameters:

  • value —

    the value to set the attribute pass to.



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# File 'lib/net/dav.rb', line 24

def pass=(value)
  @pass = value
end

#user=(value) ⇒ Object (writeonly)

Sets the attribute user

Parameters:

  • value —

    the value to set the attribute user to.



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# File 'lib/net/dav.rb', line 24

def user=(value)
  @user = value
end

Instance Method Details

#ca_file(ca_file) ⇒ Object

path of a CA certification file in PEM format. The file can contain several CA certificates.



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# File 'lib/net/dav.rb', line 274

def ca_file(ca_file)
  @http.ca_file  = ca_file
end

#cert_file(cert_file) ⇒ Object 



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# File 'lib/net/dav.rb', line 257

def cert_file(cert_file)
  # expects a OpenSSL::X509::Certificate object as client certificate
  @http.cert  = OpenSSL::X509::Certificate.new(File.read(cert_file))
  #puts @http.cert.not_after
  #puts @http.cert.subject
end

#cert_key(cert_file, cert_file_password) ⇒ Object 



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# File 'lib/net/dav.rb', line 264

def cert_key(cert_file, cert_file_password)
  # expects a OpenSSL::PKey::RSA or OpenSSL::PKey::DSA object
  if cert_file_password then
    @http.key = OpenSSL::PKey::RSA.new(File.read(cert_file),cert_file_password)
  else
    @http.key = OpenSSL::PKey::RSA.new(File.read(cert_file))
  end
end

#clone_req(path, req, headers) ⇒ Object 



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# File 'lib/net/dav.rb', line 207

def clone_req(path, req, headers)
  new_req = req.class.new(path)
  new_req.body = req.body if req.body
  if (req.body_stream)
    req.body_stream.rewind
    new_req.body_stream = req.body_stream
  end
  new_req.content_length = req.content_length if req.content_length
  headers.each_pair { |key, value| new_req[key] = value } if headers
  new_req.content_type = req.content_type if req.content_type
  return new_req
end

#digest_auth(request, user, password, response) ⇒ Object 



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# File 'lib/net/dav.rb', line 222

def digest_auth(request, user, password, response)
  # based on http://segment7.net/projects/ruby/snippets/digest_auth.rb
  @nonce_count = 0 if @nonce_count.nil?
  @nonce_count += 1

  raise "bad www-authenticate header" unless (response['www-authenticate'] =~ /^(\w+) (.*)/)

  params = {}
  $2.gsub(/(\w+)="(.*?)"/) { params[$1] = $2 }

  a_1 = "#{user}:#{params['realm']}:#{password}"
  a_2 = "#{request.method}:#{request.path}"
  request_digest = ''
  request_digest << Digest::MD5.hexdigest(a_1)
  request_digest << ':' << params['nonce']
  request_digest << ':' << ('%08x' % @nonce_count)
  request_digest << ':' << CNONCE
  request_digest << ':' << params['qop']
  request_digest << ':' << Digest::MD5.hexdigest(a_2)

  header = []
  header << "Digest username=\"#{user}\""
  header << "realm=\"#{params['realm']}\""
  header << "nonce=\"#{params['nonce']}\""
  header << "uri=\"#{request.path}\""
  header << "cnonce=\"#{CNONCE}\""
  header << "nc=#{'%08x' % @nonce_count}"
  header << "qop=#{params['qop']}"
  header << "response=\"#{Digest::MD5.hexdigest(request_digest)}\""
  header << "algorithm=\"MD5\""

  header = header.join(', ')
  request['Authorization'] = header
end

#handle_request(req, headers, limit = MAX_REDIRECTS, &block) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/net/dav.rb', line 154

def handle_request(req, headers, limit = MAX_REDIRECTS, &block)
  # You should choose better exception.
  raise ArgumentError, 'HTTP redirect too deep' if limit == 0

  case @authorization
  when :basic
    req.basic_auth @user, @pass
  when :digest
    digest_auth(req, @user, @pass, response)
  end

  response = nil
  if block
    @http.request(req) {|res|
      # Only start returning a body if we will not retry
      res.read_body nil, &block if !res.is_a?(Net::HTTPUnauthorized) && !res.is_a?(Net::HTTPRedirection)
      response = res
    }
  else
    response = @http.request(req)
  end

  @last_status = response.code.to_i
  case response
  when Net::HTTPSuccess     then
    return response
  when Net::HTTPUnauthorized     then
    response.error! unless @user
    response.error! if req['authorization']
    new_req = clone_req(req.path, req, headers)
    if response['www-authenticate'] =~ /^basic/i
      if disable_basic_auth
        raise "server requested basic auth, but that is disabled"
      end
      @authorization = :basic
    else
      @authorization = :digest
    end
    return handle_request(req, headers, limit - 1, &block)
  when Net::HTTPRedirection then
    location = URI.parse(response['location'])
    if (@uri.scheme != location.scheme ||
        @uri.host != location.host ||
        @uri.port != location.port)
      raise ArgumentError, "cannot redirect to a different host #{@uri} => #{location}"
    end
    new_req = clone_req(location.path, req, headers)
    return handle_request(new_req, headers, limit - 1, &block)
  else
    response.error!
  end
end

#open_timeout ⇒ Object 



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# File 'lib/net/dav.rb', line 65

def open_timeout
  @http.read_timeout
end

#open_timeout=(sec) ⇒ Object 



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# File 'lib/net/dav.rb', line 69

def open_timeout=(sec)
  @http.read_timeout = sec
end

#read_timeout ⇒ Object 



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# File 'lib/net/dav.rb', line 57

def read_timeout
  @http.read_timeout
end

#read_timeout=(sec) ⇒ Object 



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# File 'lib/net/dav.rb', line 61

def read_timeout=(sec)
  @http.read_timeout = sec
end

#request(verb, path, body, headers) ⇒ Object 



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# File 'lib/net/dav.rb', line 123

def request(verb, path, body, headers)
  headers ||= {}
  headers = {"User-Agent" => "Ruby"}.merge(headers)
  req =
    case verb
    when :propfind
      Net::HTTP::Propfind.new(path)
    when :mkcol
      Net::HTTP::Mkcol.new(path)
    when :delete
      Net::HTTP::Delete.new(path)
    when :move
      Net::HTTP::Move.new(path)
    when :copy
      Net::HTTP::Copy.new(path)
    when :proppatch
      Net::HTTP::Proppatch.new(path)
    when :lock
      Net::HTTP::Lock.new(path)
    when :unlock
      Net::HTTP::Unlock.new(path)
    else
      raise "unkown verb #{verb}"
    end
  req.body = body
  headers.each_pair { |key, value| req[key] = value } if headers
  req.content_type = 'text/xml; charset="utf-8"'
  res = handle_request(req, headers)
  res
end

#request_returning_body(verb, path, headers, &block) ⇒ Object 



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# File 'lib/net/dav.rb', line 108

def request_returning_body(verb, path, headers, &block)
  headers ||= {}
  headers = {"User-Agent" => "Ruby"}.merge(headers)
  req =
    case verb
    when :get
      Net::HTTP::Get.new(path)
    else
      raise "unkown returning_body verb #{verb}"
    end
  headers.each_pair { |key, value| req[key] = value } if headers
  res = handle_request(req, headers, MAX_REDIRECTS, &block)
  res.body
end

#request_sending_body(verb, path, body, headers) ⇒ Object 



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# File 'lib/net/dav.rb', line 91

def request_sending_body(verb, path, body, headers)
  headers ||= {}
  headers = {"User-Agent" => "Ruby"}.merge(headers)
  req =
    case verb
    when :put
      Net::HTTP::Put.new(path)
    else
      raise "unkown sending_body verb #{verb}"
    end
  req.body = body
  headers.each_pair { |key, value| req[key] = value } if headers
  req.content_type = 'application/octet-stream'
  res = handle_request(req, headers)
  res
end

#request_sending_stream(verb, path, stream, length, headers) ⇒ Object 



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# File 'lib/net/dav.rb', line 73

def request_sending_stream(verb, path, stream, length, headers)
  headers ||= {}
  headers = {"User-Agent" => "Ruby"}.merge(headers)
  req =
    case verb
    when :put
      Net::HTTP::Put.new(path)
    else
      raise "unkown sending_stream verb #{verb}"
    end
  req.body_stream = stream
  req.content_length = length
  headers.each_pair { |key, value| req[key] = value } if headers
  req.content_type = 'application/octet-stream'
  res = handle_request(req, headers)
  res
end

#start(&block) ⇒ Object 



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# File 'lib/net/dav.rb', line 53

def start(&block)
  @http.start(&block)
end

#verify_callback=(callback) ⇒ Object 



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# File 'lib/net/dav.rb', line 30

def verify_callback=(callback)
  @http.verify_callback = callback
end

#verify_server=(value) ⇒ Object 



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# File 'lib/net/dav.rb', line 34

def verify_server=(value)
  @http.verify_mode = value ? OpenSSL::SSL::VERIFY_PEER : OpenSSL::SSL::VERIFY_NONE
end