auth

Paddy 2015-05-17 Parent:807d20a0b197 Child:0a2c3d677161

173:b0d1b3e39fc8 Go to Latest

auth/config.go

Make client use our auth(n/z) scheme. Our auth(n/z) scheme can be loosely defined as "encrypted tokens that nginx transforms into headers" and "scopes for bypassing ACL". Our Go client, which is what we'll be using to have services communicate with each other, follows this paradigm now by auto-injecting the headers we'll need to identify ourselves. This will work behind our firewall, but will be useless for the rest of the world, which will need to go through the nginx bastion that can strip the headers and replace them with the headers appropriate to the token attached to the request. This did involve setting a static client ID as the client for our email_verification listener. Ideally, this would cause Client registration (using that ID) when the listener starts up, ignoring ErrClientAlreadyExists. I don't want to have to write the code that will allow us to bypass the Client ACL properly right now, though, so we're just going to have to remember to manually create that Client. Or not. I don't think it will do any harm (outside the OAuth flow) to be using a Client ID that doesn't actually point to a Client. I just think it'd be good for record-keeping purposes.

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1 package auth
2
3 import (
4 "errors"
5 "html/template"
6 "log"
7 )
8
9 var (
10 // ErrInvalidLoginURI is returned when a Context is instantiated with a Config object that specifies a LoginURI that can't be parsed as a URL.
11 ErrInvalidLoginURI = errors.New("invalid login URI")
12 // ErrConfigNotInitialized is returned when a Context is instantiated with a Config object that hasn't had its Init function called.
13 ErrConfigNotInitialized = errors.New("config not initialized")
14
15 // Version is used to keep track of what version of the build this is
16 Version string
17 )
18
19 // Config holds the configuration values necessary to run a server. A Config
20 // instance is the only way to instantiate a Context variable.
21 type Config struct {
22 ClientStore clientStore
23 AuthCodeStore authorizationCodeStore
24 ProfileStore profileStore
25 TokenStore tokenStore
26 SessionStore sessionStore
27 ScopeStore scopeStore
28 LoginVerificationNotifier loginVerificationNotifier
29 Template *template.Template
30 LoginURI string
31 JWTPrivateKey []byte
32 iterations int
33 secureCookie bool
34 }
35
36 // Init is a function that preps the Config object to be used for Context creation, setting variables
37 // that are determined at the beginning of program execution.
38 func (c *Config) Init() error {
39 scheme, ok := passphraseSchemes[CurPassphraseScheme]
40 if !ok {
41 return ErrInvalidPassphraseScheme
42 }
43 var err error
44 c.iterations, err = scheme.calculateIterations()
45 if err != nil {
46 return err
47 }
48 log.Printf("Generating passphrases with %d iterations...\n", c.iterations)
49 return nil
50 }