// Repos is a middleware function that attempts to cache the
// user's list of remote repositories (ie in GitHub) to minimize
// remote calls that might be expensive, slow or rate-limited.
func Repos(c *gin.Context) {
var user, _ = c.Get("user")
if user == nil {
c.Next()
return
}
// if the item already exists in the cache
// we can continue the middleware chain and
// exit afterwards.
v := cache.GetRepos(c, user.(*model.User))
if v != nil {
c.Set("repos", v)
c.Next()
return
}
// otherwise, if the item isn't cached we execute
// the middleware chain and then cache the permissions
// after the request is processed.
c.Next()
repos, ok := c.Get("repos")
if ok {
cache.SetRepos(c,
user.(*model.User),
repos.([]*model.RepoLite),
)
}
}
func TestReposCache(t *testing.T) {
g := goblin.Goblin(t)
g.Describe("Repo List Cache", func() {
var c *gin.Context
g.BeforeEach(func() {
c = new(gin.Context)
cache.ToContext(c, cache.Default())
})
g.It("should skip when no user session", func() {
Perms(c)
_, ok := c.Get("perm")
g.Assert(ok).IsFalse()
})
g.It("should get repos from cache", func() {
c.Set("user", fakeUser)
cache.SetRepos(c, fakeUser, fakeRepos)
Repos(c)
repos, ok := c.Get("repos")
g.Assert(ok).IsTrue()
g.Assert(repos).Equal(fakeRepos)
})
})
}