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# Call an API with given options.
#
# @return [Array<(Object, Integer, Hash)>] an array of 3 elements:
# the data deserialized from response body (may be a Tempfile or nil), response status code and response headers.
def call_api(http_method, path, opts = {})
request = build_request(http_method, path, opts)
tempfile = download_file(request) if opts[:return_type] == 'File'
response = request.run
if @config.debugging
@config.logger.debug "HTTP response body ~BEGIN~\n#{response.body}\n~END~\n"
end
unless response.success?
if response.timed_out?
fail ApiError.new('Connection timed out')
elsif response.code == 0
# Errors from libcurl will be made visible here
fail ApiError.new(:code => 0,
:message => response.return_message)
else
fail ApiError.new(:code => response.code,
:response_headers => response.headers,
:response_body => response.body),
response.status_message
end
end
if opts[:return_type] == 'File'
data = tempfile
elsif opts[:return_type]
data = deserialize(response, opts[:return_type])
else
data = nil
end
return data, response.code, response.headers
end
# Builds the HTTP request
#
# @param [String] http_method HTTP method/verb (e.g. POST)
# @param [String] path URL path (e.g. /account/new)
# @option opts [Hash] :header_params Header parameters
# @option opts [Hash] :query_params Query parameters
# @option opts [Hash] :form_params Query parameters
# @option opts [Object] :body HTTP body (JSON/XML)
# @return [Typhoeus::Request] A Typhoeus Request
def build_request(http_method, path, opts = {})
url = build_request_url(path, opts)
http_method = http_method.to_sym.downcase
header_params = @default_headers.merge(opts[:header_params] || {})
query_params = opts[:query_params] || {}
form_params = opts[:form_params] || {}
follow_location = opts[:follow_location] || true
{{#hasAuthMethods}}
update_params_for_auth! header_params, query_params, opts[:auth_names]
{{/hasAuthMethods}}
# set ssl_verifyhosts option based on @config.verify_ssl_host (true/false)
_verify_ssl_host = @config.verify_ssl_host ? 2 : 0
req_opts = {
:method => http_method,
:headers => header_params,
:params => query_params,
:params_encoding => @config.params_encoding,
:timeout => @config.timeout,
:ssl_verifypeer => @config.verify_ssl,
:ssl_verifyhost => _verify_ssl_host,
:sslcert => @config.cert_file,
:sslkey => @config.key_file,
:verbose => @config.debugging,
:followlocation => follow_location
}
# set custom cert, if provided
req_opts[:cainfo] = @config.ssl_ca_cert if @config.ssl_ca_cert
if [:post, :patch, :put, :delete].include?(http_method)
req_body = build_request_body(header_params, form_params, opts[:body])
req_opts.update :body => req_body
if @config.debugging
@config.logger.debug "HTTP request body param ~BEGIN~\n#{req_body}\n~END~\n"
end
end
Typhoeus::Request.new(url, req_opts)
end
# Builds the HTTP request body
#
# @param [Hash] header_params Header parameters
# @param [Hash] form_params Query parameters
# @param [Object] body HTTP body (JSON/XML)
# @return [String] HTTP body data in the form of string
def build_request_body(header_params, form_params, body)
# http form
if header_params['Content-Type'] == 'application/x-www-form-urlencoded' ||
header_params['Content-Type'] == 'multipart/form-data'
data = {}
form_params.each do |key, value|
case value
when ::File, ::Array, nil
# let typhoeus handle File, Array and nil parameters
data[key] = value
else
data[key] = value.to_s
end
end
elsif body
data = body.is_a?(String) ? body : body.to_json
else
data = nil
end
data
end
# Save response body into a file in (the defined) temporary folder, using the filename
# from the "Content-Disposition" header if provided, otherwise a random filename.
# The response body is written to the file in chunks in order to handle files which
# size is larger than maximum Ruby String or even larger than the maximum memory a Ruby
# process can use.
#
# @see Configuration#temp_folder_path
#
# @return [Tempfile] the tempfile generated
def download_file(request)
tempfile = nil
encoding = nil
request.on_headers do |response|
content_disposition = response.headers['Content-Disposition']
if content_disposition && content_disposition =~ /filename=/i
filename = content_disposition[/filename=['"]?([^'"\s]+)['"]?/, 1]
prefix = sanitize_filename(filename)
else
prefix = 'download-'
end
prefix = prefix + '-' unless prefix.end_with?('-')
encoding = response.body.encoding
tempfile = Tempfile.open(prefix, @config.temp_folder_path, encoding: encoding)
end
request.on_body do |chunk|
chunk.force_encoding(encoding)
tempfile.write(chunk)
end
# run the request to ensure the tempfile is created successfully before returning it
request.run
if tempfile
tempfile.close
@config.logger.info "Temp file written to #{tempfile.path}, please copy the file to a proper folder "\
"with e.g. `FileUtils.cp(tempfile.path, '/new/file/path')` otherwise the temp file "\
"will be deleted automatically with GC. It's also recommended to delete the temp file "\
"explicitly with `tempfile.delete`"
else
fail ApiError.new("Failed to create the tempfile based on the HTTP response from the server: #{request.inspect}")
end
tempfile
end
