113 lines
2.7 KiB
Go
113 lines
2.7 KiB
Go
package app
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import (
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"crypto/md5"
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"crypto/sha256"
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"database/sql"
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"fmt"
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"time"
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"github.com/jmoiron/sqlx"
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"github.com/osuyozora/api/common"
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)
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// GetTokenFull retrieves an user ID and their token privileges knowing their API token.
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func GetTokenFull(token string, db *sqlx.DB) (common.Token, bool) {
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var (
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t common.Token
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tokenPrivsRaw uint64
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userPrivsRaw uint64
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priv8 bool
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)
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err := db.QueryRow(`SELECT
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t.id, t.user, t.privileges, t.private, u.privileges
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FROM tokens t
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LEFT JOIN users u ON u.id = t.user
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WHERE token = ? LIMIT 1`,
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fmt.Sprintf("%x", md5.Sum([]byte(token)))).
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Scan(
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&t.ID, &t.UserID, &tokenPrivsRaw, &priv8, &userPrivsRaw,
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)
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updateTokens <- t.ID
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if priv8 {
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// all privileges, they'll get removed by canOnly anyway.
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tokenPrivsRaw = (common.PrivilegeBeatmap << 1) - 1
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}
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t.UserPrivileges = common.UserPrivileges(userPrivsRaw)
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t.TokenPrivileges = common.Privileges(tokenPrivsRaw).CanOnly(t.UserPrivileges)
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switch {
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case err == sql.ErrNoRows:
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return common.Token{}, false
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case err != nil:
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panic(err)
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default:
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t.Value = token
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return t, true
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}
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}
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var updateTokens = make(chan int, 100)
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func tokenUpdater(db *sqlx.DB) {
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for {
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// prepare a queue of tokens to update.
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tokensToUpdate := make([]int, 0, 50)
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AwaitLoop:
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for {
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// if we got ten, move on and update
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if len(tokensToUpdate) >= 50 {
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break
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}
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// if we ain't got any, add what we get straight from updateTokens
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if len(tokensToUpdate) == 0 {
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x := <-updateTokens
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tokensToUpdate = append(tokensToUpdate, x)
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continue
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}
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// otherwise, wait from updateTokens with a timeout of 10 seconds
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select {
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case x := <-updateTokens:
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tokensToUpdate = append(tokensToUpdate, x)
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case <-time.After(10 * time.Second):
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// wondering what this means?
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// https://golang.org/ref/spec#Break_statements
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break AwaitLoop
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}
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}
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q, a, _ := sqlx.In("UPDATE tokens SET last_updated = ? WHERE id IN (?)", time.Now().Unix(), tokensToUpdate)
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q = db.Rebind(q)
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_, err := db.Exec(q, a...)
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if err != nil {
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fmt.Println(err)
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}
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}
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}
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// BearerToken parses a Token given in the Authorization header, with the
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// Bearer prefix.
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func BearerToken(token string, db *sqlx.DB) (common.Token, bool) {
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var x struct {
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Scope string
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Extra int
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}
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db.Get(&x, "SELECT scope, extra FROM osin_access WHERE access_token = ? LIMIT 1", fmt.Sprintf("%x", sha256.Sum256([]byte(token))))
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if x.Extra == 0 {
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return common.Token{}, false
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}
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var privs uint64
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db.Get(&privs, "SELECT privileges FROM users WHERE id = ? LIMIT 1", x.Extra)
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var t common.Token
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t.ID = -1
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t.UserID = x.Extra
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t.Value = token
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t.UserPrivileges = common.UserPrivileges(privs)
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t.TokenPrivileges = common.OAuthPrivileges(x.Scope).CanOnly(t.UserPrivileges)
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return t, true
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}
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