Class: ImageKitIo::Url
- Inherits:
-
Object
- Object
- ImageKitIo::Url
- Includes:
- Constantable
- Defined in:
- lib/imagekitio/url.rb
Instance Method Summary collapse
- #build_url(options) ⇒ Object
- #extend_url_options(options) ⇒ Object
- #generate_url(options) ⇒ Object
- #get_signature(private_key, url, url_endpoint, expiry_timestamp) ⇒ Object
- #get_signature_timestamp(seconds) ⇒ Object
- #hash_to_url(url_hash) ⇒ Object
-
#initialize(request_obj) ⇒ Url
constructor
A new instance of Url.
- #transformation_to_str(transformation) ⇒ Object
- #trim_slash(str, both = true) ⇒ Object
Methods included from Constantable
Constructor Details
#initialize(request_obj) ⇒ Url
Returns a new instance of Url.
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# File 'lib/imagekitio/url.rb', line 15 def initialize(request_obj) @req_obj = request_obj end |
Instance Method Details
#build_url(options) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 27 def build_url() # build url from all options path = .fetch(:path, "") src = .fetch(:src, "") url_endpoint = .fetch(:url_endpoint, "") transformation_position = [:transformation_position] unless constants.VALID_TRANSFORMATION_POSITION.include? transformation_position raise ArgumentError, constants.INVALID_TRANSFORMATION_POS end src_param_used_for_url = false if (src != "") || (transformation_position == constants.QUERY_TRANSFORMATION_POSITION) src_param_used_for_url = true end if path == "" && src == "" return "" end result_url_hash = {'host': "", 'path': "", 'query': ""} parsed_host = Addressable::URI.parse(url_endpoint) existing_query = nil if path != "" parsed_url = Addressable::URI.parse(path) # making sure single '/' at end result_url_hash[:host] = parsed_host.host.to_s.chomp("/") + parsed_host.path.chomp("/") + "/" path_without_query = Addressable::URI.parse(path) path_without_query.fragment = path_without_query.query = nil result_url_hash[:path] = path_without_query.hostname.nil? ? trim_slash(path_without_query.to_s) : CGI.escape(trim_slash(path_without_query.to_s)) else parsed_url = Addressable::URI.parse(src) result_url_hash[:userinfo] = parsed_url.userinfo if parsed_url.userinfo result_url_hash[:host] = parsed_url.host result_url_hash[:path] = parsed_url.path src_param_used_for_url = true end existing_query = parsed_url.query result_url_hash[:scheme] = parsed_host.scheme query_params = {} query_params = CGI.parse(existing_query).reject {|k, v| v.empty? }.transform_values(&:first) unless existing_query.nil? .fetch(:query_parameters, {}).each do |key, value| query_params[key] = value end transformation_str = transformation_to_str([:transformation]).chomp("/") unless transformation_str.nil? || transformation_str.strip.empty? if (transformation_position == constants.QUERY_TRANSFORMATION_POSITION) || src_param_used_for_url == true result_url_hash[:query] = "#{constants.TRANSFORMATION_PARAMETER}=#{transformation_str}" query_params[:tr]=transformation_str else result_url_hash[:path] = "#{constants.TRANSFORMATION_PARAMETER}:#{transformation_str}/#{result_url_hash[:path]}" end end result_url_hash[:host] = result_url_hash[:host].to_s.reverse.chomp("/").reverse result_url_hash[:path] = result_url_hash[:path].chomp("/") unless result_url_hash[:path].nil? result_url_hash[:scheme] ||= "https" query_param_arr = [] query_params.each do |key, value| if value.to_s == "" query_param_arr.push(key.to_s) else query_param_arr.push(key.to_s + "=" + value.to_s) end end query_param_str = query_param_arr.join("&") result_url_hash[:query] = query_param_str url = hash_to_url(result_url_hash) if [:signed] private_key = [:private_key] expire_seconds = [:expire_seconds] = (expire_seconds) url_signature = get_signature(private_key, url, url_endpoint, ) query_param_arr.push(constants.SIGNATURE_PARAMETER + "=" + url_signature) if && ( != constants.TIMESTAMP) query_param_arr.push(constants.TIMESTAMP_PARAMETER + "=" + .to_s) end query_param_str = query_param_arr.join("&") result_url_hash[:query] = query_param_str url=hash_to_url(result_url_hash) end url end |
#extend_url_options(options) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 176 def () attr_dict = {"public_key": @req_obj.public_key, "private_key": @req_obj.private_key, "url_endpoint": @req_obj.url_endpoint, "transformation_position": @req_obj.transformation_position, } # extending url options attr_dict.merge() end |
#generate_url(options) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 19 def generate_url() if .key? :src [:transformation_position] = constants.TRANSFORMATION_POSITION end = () build_url() end |
#get_signature(private_key, url, url_endpoint, expiry_timestamp) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 162 def get_signature(private_key, url, url_endpoint, ) # creates signature(hashed hex key) and returns from # private_key, url, url_endpoint and expiry_timestamp if ==0 =constants.DEFAULT_TIMESTAMP end if url_endpoint[url_endpoint.length-1]!="/" url_endpoint+="/" end replaced_url=url.gsub(url_endpoint, "") replaced_url = replaced_url + .to_s OpenSSL::HMAC.hexdigest("SHA1", private_key, replaced_url) end |
#get_signature_timestamp(seconds) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 150 def (seconds) # this function returns either default time stamp # or current unix time and expiry seconds to get # signature time stamp if seconds.to_i == 0 constants.DEFAULT_TIMESTAMP else DateTime.now.strftime("%s").to_i + seconds.to_i end end |
#hash_to_url(url_hash) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 185 def hash_to_url(url_hash) generated_url = url_hash.fetch(:scheme, "") + "://" + url_hash.fetch(:host, "") + url_hash.fetch(:path, "") if url_hash[:query] != "" generated_url = generated_url + "?" + url_hash.fetch(:query, "") return generated_url end generated_url end |
#transformation_to_str(transformation) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 116 def transformation_to_str(transformation) # creates transformation_position string for url # from transformation dictionary unless transformation.is_a?(Array) return "" end parsed_transforms = [] (0..(transformation.length - 1)).each do |i| parsed_transform_step = [] transformation[i].keys.each do |key| transform_key = constants.SUPPORTED_TRANS.fetch(key, nil) transform_key ||= key if transform_key == "oi" || transform_key == "di" transformation[i][key][0] = "" if transformation[i][key][0] == "/" transformation[i][key] = transformation[i][key].gsub("/", "@@") end if transformation[i][key] == "-" parsed_transform_step.push(transform_key) elsif transform_key == 'raw' parsed_transform_step.push(transformation[i][key]) else parsed_transform_step.push("#{transform_key}#{constants.TRANSFORM_KEY_VALUE_DELIMITER}#{transformation[i][key]}") end end parsed_transforms.push(parsed_transform_step.join(constants.TRANSFORM_DELIMITER)) end parsed_transforms.join(constants.CHAIN_TRANSFORM_DELIMITER) end |
#trim_slash(str, both = true) ⇒ Object
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# File 'lib/imagekitio/url.rb', line 194 def trim_slash(str, both = true) if str == "" return "" end # remove slash from a string # if both is not provide trims both slash # example - '/abc/' returns 'abc' # if both=false it will only trim end slash # example - '/abc/' returns '/abc' # NOTE: IT'S RECOMMENDED TO USE inbuilt .chomp('string you want to remove') # FOR REMOVING ONLY TRAILING SLASh if both str[0].chomp("/") + str[1..-2] + str[-1].chomp("/") else str.chomp("/") end end |