69 lines
2.8 KiB
Markdown
69 lines
2.8 KiB
Markdown
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# osin-mysql
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 [](https://godoc.org/github.com/felipeweb/osin-mysql)
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A MySQL storage backend for [osin oauth2](https://github.com/RangelReale/osin).
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Additional to implementing the `osin.Storage` interface, the `github.com/felipeweb/osin-mysql/storage.Storage` interface defines new methods:
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```
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// CreateClient stores the client in the database and returns an error, if something went wrong.
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CreateClient(client osin.Client) error
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// UpdateClient updates the client (identified by its id) and replaces the values with the values of client.
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// Returns an error if something went wrong.
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UpdateClient(client osin.Client) error
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// RemoveClient removes a client (identified by id) from the database. Returns an error if something went wrong.
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RemoveClient(id string) error
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```
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## Encrypt your tokens
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Unfortunately, the osin library offers little capabilities for storing credentials like access or refresh tokens in a
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hashed or encrypted way. An attacker could gain access to your database through various attack vectors, steal these
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tokens and gain, for example, administrative access to your application.
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Please be aware, that this library stores all data as-is and does not perform any sort of encryption or hashing.
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## Usage
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First, install this library with `go get "github.com/felipeweb/osin-mysql"`.
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```go
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import (
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"database/sql"
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_ "github.com/go-sql-driver/mysql"
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"github.com/felipeweb/osin-mysql"
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"github.com/RangelReale/osin"
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)
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func main() {
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url := "user:password@tcp(host:3306)/dbname?parseTime=true"
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db, err := sql.Open("mysql", url)
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if err != nil {
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return nil, err
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}
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store := mysql.New(db,"osin_")
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store.CreateSchemas()
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server := osin.NewServer(osin.NewServerConfig(), store)
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// See the osin documentation for more information
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// e.g.: server.HandleAuthorizeRequest(resp, r)
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}
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```
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## Limitations
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TL;DR `AuthorizeData`'s `Client`'s and `AccessData`'s `UserData` field must be string due to language restrictions or an error will be thrown.
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In osin, Client, AuthorizeData and AccessData have a `UserData` property of type `interface{}`. This does not work well
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with SQL, because it is not possible to gob decode or unmarshall the data back, since the concrete type is not known.
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Because osin's storage interface does not support setting the UserData type, **this library tries to convert UserData to string
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and return it as such.** With this, you could for example gob encode (use e.g. base64 encode for SQL storage type compatibility)
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the data before passing it to e.g. `FinishAccessRequest` and decode it when needed.
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# 2016-10-23 BREAKING CHANGES
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- Now `New()` recives a db object and a table prefix as parameter
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