Re-org service account support
This commit is contained in:
Steven Bazyl
parent
39f53ae4e2
commit
aeef8f3a5c
|
|
@ -0,0 +1,124 @@
|
|||
# Copyright 2010 Google Inc.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
require 'jwt'
|
||||
require 'signet/oauth_2/client'
|
||||
|
||||
module Google
|
||||
class APIClient
|
||||
##
|
||||
# Generates access tokens using the JWT assertion profile. Requires a
|
||||
# service account & access to the private key.
|
||||
#
|
||||
# @example
|
||||
#
|
||||
# client = Google::APIClient.new
|
||||
# key = Google::APIClient::PKCS12.load_key('client.p12', 'notasecret')
|
||||
# service_account = Google::APIClient::JWTAsserter(
|
||||
# '123456-abcdef@developer.gserviceaccount.com',
|
||||
# 'https://www.googleapis.com/auth/prediction',
|
||||
# key)
|
||||
# client.authorization = service_account.authorize
|
||||
# client.execute(...)
|
||||
#
|
||||
# @see https://developers.google.com/accounts/docs/OAuth2ServiceAccount
|
||||
class JWTAsserter
|
||||
# @return [String] ID/email of the issuing party
|
||||
attr_accessor :issuer
|
||||
# @return [Fixnum] How long, in seconds, the assertion is valid for
|
||||
attr_accessor :expiry
|
||||
# @return [Fixnum] Seconds to expand the issued at/expiry window to account for clock skew
|
||||
attr_accessor :skew
|
||||
# @return [String] Scopes to authorize
|
||||
attr_reader :scope
|
||||
# @return [OpenSSL::PKey] key for signing assertions
|
||||
attr_writer :key
|
||||
|
||||
##
|
||||
# Initializes the asserter for a service account.
|
||||
#
|
||||
# @param [String] issuer
|
||||
# Name/ID of the client issuing the assertion
|
||||
# @param [String, Array] scope
|
||||
# Scopes to authorize. May be a space delimited string or array of strings
|
||||
# @param [OpenSSL::PKey] key
|
||||
# RSA private key for signing assertions
|
||||
def initialize(issuer, scope, key)
|
||||
self.issuer = issuer
|
||||
self.scope = scope
|
||||
self.expiry = 60 # 1 min default
|
||||
self.skew = 60
|
||||
self.key = key
|
||||
end
|
||||
|
||||
##
|
||||
# Set the scopes to authorize
|
||||
#
|
||||
# @param [String, Array] new_scope
|
||||
# Scopes to authorize. May be a space delimited string or array of strings
|
||||
def scope=(new_scope)
|
||||
case new_scope
|
||||
when Array
|
||||
@scope = new_scope.join(' ')
|
||||
when String
|
||||
@scope = new_scope
|
||||
when nil
|
||||
@scope = ''
|
||||
else
|
||||
raise TypeError, "Expected Array or String, got #{new_scope.class}"
|
||||
end
|
||||
end
|
||||
|
||||
##
|
||||
# Builds & signs the assertion.
|
||||
#
|
||||
# @param [String] person
|
||||
# Email address of a user, if requesting a token to act on their behalf
|
||||
# @return [String] Encoded JWT
|
||||
def to_jwt(person=nil)
|
||||
now = Time.new
|
||||
assertion = {
|
||||
"iss" => @issuer,
|
||||
"scope" => self.scope,
|
||||
"aud" => "https://accounts.google.com/o/oauth2/token",
|
||||
"exp" => (now + expiry).to_i,
|
||||
"iat" => (now - skew).to_i
|
||||
}
|
||||
assertion['prn'] = person unless person.nil?
|
||||
return JWT.encode(assertion, @key, "RS256")
|
||||
end
|
||||
|
||||
##
|
||||
# Request a new access token.
|
||||
#
|
||||
# @param [String] person
|
||||
# Email address of a user, if requesting a token to act on their behalf
|
||||
# @param [Hash] options
|
||||
# Pass through to Signet::OAuth2::Client.fetch_access_token
|
||||
# @return [Signet::OAuth2::Client] Access token
|
||||
#
|
||||
# @see Signet::OAuth2::Client.fetch_access_token
|
||||
def authorize(person = nil, options={})
|
||||
assertion = self.to_jwt(person)
|
||||
authorization = Signet::OAuth2::Client.new(
|
||||
:token_credential_uri => 'https://accounts.google.com/o/oauth2/token'
|
||||
)
|
||||
authorization.grant_type = 'urn:ietf:params:oauth:grant-type:jwt-bearer'
|
||||
authorization.extension_parameters = { :assertion => assertion }
|
||||
authorization.fetch_access_token!(options)
|
||||
return authorization
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
# Copyright 2010 Google Inc.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
module Google
|
||||
class APIClient
|
||||
##
|
||||
# Helper for loading keys from the PKCS12 files downloaded when
|
||||
# setting up service accounts at the APIs Console.
|
||||
#
|
||||
module PKCS12
|
||||
##
|
||||
# Loads a key from PKCS12 file, assuming a single private key
|
||||
# is present.
|
||||
#
|
||||
# @param [String] keyfile
|
||||
# Path of the PKCS12 file to load. If not a path to an actual file,
|
||||
# assumes the string is the content of the file itself.
|
||||
# @param [String] passphrase
|
||||
# Passphrase for unlocking the private key
|
||||
#
|
||||
# @return [OpenSSL::PKey] The private key for signing assertions.
|
||||
def self.load_key(keyfile, passphrase)
|
||||
begin
|
||||
if File.exists?(keyfile)
|
||||
content = File.read(keyfile)
|
||||
else
|
||||
content = keyfile
|
||||
end
|
||||
pkcs12 = OpenSSL::PKCS12.new(content, passphrase)
|
||||
return pkcs12.key
|
||||
rescue OpenSSL::PKCS12::PKCS12Error
|
||||
raise ArgumentError.new("Invalid keyfile or passphrase")
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -12,146 +12,5 @@
|
|||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
require 'jwt'
|
||||
require 'signet/oauth_2/client'
|
||||
|
||||
module Google
|
||||
class APIClient
|
||||
##
|
||||
# Helper for loading keys from the PKCS12 files downloaded when
|
||||
# setting up service accounts at the APIs Console.
|
||||
#
|
||||
|
||||
module PKCS12
|
||||
|
||||
##
|
||||
# Loads a key from PKCS12 file, assuming a single private key
|
||||
# is present.
|
||||
#
|
||||
# @param [String] keyfile
|
||||
# Path of the PKCS12 file to load. If not a path to an actual file,
|
||||
# assumes the string is the content of the file itself.
|
||||
# @param [String] passphrase
|
||||
# Passphrase for unlocking the private key
|
||||
#
|
||||
# @return [OpenSSL::PKey] The private key for signing assertions.
|
||||
def self.load_key(keyfile, passphrase)
|
||||
begin
|
||||
if File.exists?(keyfile)
|
||||
content = File.read(keyfile)
|
||||
else
|
||||
content = keyfile
|
||||
end
|
||||
pkcs12 = OpenSSL::PKCS12.new(content, passphrase)
|
||||
return pkcs12.key
|
||||
rescue OpenSSL::PKCS12::PKCS12Error
|
||||
raise ArgumentError.new("Invalid keyfile or passphrase")
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
##
|
||||
# Generates access tokens using the JWT assertion profile. Requires a
|
||||
# service account & access to the private key.
|
||||
#
|
||||
# @example
|
||||
#
|
||||
# client = Google::APIClient.new
|
||||
# key = Google::APIClient::PKCS12.load_key('client.p12', 'notasecret')
|
||||
# service_account = Google::APIClient::JWTAsserter(
|
||||
# '123456-abcdef@developer.gserviceaccount.com',
|
||||
# 'https://www.googleapis.com/auth/prediction',
|
||||
# key)
|
||||
# client.authorization = service_account.authorize
|
||||
# client.execute(...)
|
||||
#
|
||||
# @see https://developers.google.com/accounts/docs/OAuth2ServiceAccount
|
||||
class JWTAsserter
|
||||
# @return [String] ID/email of the issuing party
|
||||
attr_accessor :issuer
|
||||
# @return [Fixnum] How long, in seconds, the assertion is valid for
|
||||
attr_accessor :expiry
|
||||
# @return [Fixnum] Seconds to expand the issued at/expiry window to account for clock skew
|
||||
attr_accessor :skew
|
||||
# @return [String] Scopes to authorize
|
||||
attr_reader :scope
|
||||
# @return [OpenSSL::PKey] key for signing assertions
|
||||
attr_writer :key
|
||||
|
||||
##
|
||||
# Initializes the asserter for a service account.
|
||||
#
|
||||
# @param [String] issuer
|
||||
# Name/ID of the client issuing the assertion
|
||||
# @param [String, Array] scope
|
||||
# Scopes to authorize. May be a space delimited string or array of strings
|
||||
# @param [OpenSSL::PKey] key
|
||||
# RSA private key for signing assertions
|
||||
def initialize(issuer, scope, key)
|
||||
self.issuer = issuer
|
||||
self.scope = scope
|
||||
self.expiry = 60 # 1 min default
|
||||
self.skew = 60
|
||||
self.key = key
|
||||
end
|
||||
|
||||
##
|
||||
# Set the scopes to authorize
|
||||
#
|
||||
# @param [String, Array] new_scope
|
||||
# Scopes to authorize. May be a space delimited string or array of strings
|
||||
def scope=(new_scope)
|
||||
case new_scope
|
||||
when Array
|
||||
@scope = new_scope.join(' ')
|
||||
when String
|
||||
@scope = new_scope
|
||||
when nil
|
||||
@scope = ''
|
||||
else
|
||||
raise TypeError, "Expected Array or String, got #{new_scope.class}"
|
||||
end
|
||||
end
|
||||
|
||||
##
|
||||
# Builds & signs the assertion.
|
||||
#
|
||||
# @param [String] person
|
||||
# Email address of a user, if requesting a token to act on their behalf
|
||||
# @return [String] Encoded JWT
|
||||
def to_jwt(person=nil)
|
||||
now = Time.new
|
||||
assertion = {
|
||||
"iss" => @issuer,
|
||||
"scope" => self.scope,
|
||||
"aud" => "https://accounts.google.com/o/oauth2/token",
|
||||
"exp" => (now + expiry).to_i,
|
||||
"iat" => (now - skew).to_i
|
||||
}
|
||||
assertion['prn'] = person unless person.nil?
|
||||
return JWT.encode(assertion, @key, "RS256")
|
||||
end
|
||||
|
||||
##
|
||||
# Request a new access token.
|
||||
#
|
||||
# @param [String] person
|
||||
# Email address of a user, if requesting a token to act on their behalf
|
||||
# @param [Hash] options
|
||||
# Pass through to Signet::OAuth2::Client.fetch_access_token
|
||||
# @return [Signet::OAuth2::Client] Access token
|
||||
#
|
||||
# @see Signet::OAuth2::Client.fetch_access_token
|
||||
def authorize(person = nil, options={})
|
||||
assertion = self.to_jwt(person)
|
||||
authorization = Signet::OAuth2::Client.new(
|
||||
:token_credential_uri => 'https://accounts.google.com/o/oauth2/token'
|
||||
)
|
||||
authorization.grant_type = 'urn:ietf:params:oauth:grant-type:jwt-bearer'
|
||||
authorization.extension_parameters = { :assertion => assertion }
|
||||
authorization.fetch_access_token!(options)
|
||||
return authorization
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
require 'google/api_client/auth/pkcs12'
|
||||
require 'google/api_client/auth/jwt_asserter'
|
||||
|
|
|
|||
Loading…
Reference in New Issue