/
config.go
195 lines (161 loc) · 4.99 KB
/
config.go
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package github
import (
"context"
"net/http"
"net/url"
"path"
"strings"
"time"
"github.com/google/go-github/v57/github"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/logging"
"github.com/shurcooL/githubv4"
"golang.org/x/oauth2"
)
type Config struct {
Token string
Owner string
BaseURL string
Insecure bool
WriteDelay time.Duration
ReadDelay time.Duration
RetryDelay time.Duration
RetryableErrors map[int]bool
MaxRetries int
ParallelRequests bool
}
type Owner struct {
name string
id int64
v3client *github.Client
v4client *githubv4.Client
StopContext context.Context
IsOrganization bool
}
func RateLimitedHTTPClient(client *http.Client, writeDelay time.Duration, readDelay time.Duration, retryDelay time.Duration, parallelRequests bool, retryableErrors map[int]bool, maxRetries int) *http.Client {
client.Transport = NewEtagTransport(client.Transport)
client.Transport = NewRateLimitTransport(client.Transport, WithWriteDelay(writeDelay), WithReadDelay(readDelay), WithParallelRequests(parallelRequests))
client.Transport = logging.NewSubsystemLoggingHTTPTransport("GitHub", client.Transport)
client.Transport = newPreviewHeaderInjectorTransport(map[string]string{
// TODO: remove when Stone Crop preview is moved to general availability in the GraphQL API
"Accept": "application/vnd.github.stone-crop-preview+json",
}, client.Transport)
if maxRetries > 0 {
client.Transport = NewRetryTransport(client.Transport, WithRetryDelay(retryDelay), WithRetryableErrors(retryableErrors), WithMaxRetries(maxRetries))
}
return client
}
func (c *Config) AuthenticatedHTTPClient() *http.Client {
ctx := context.Background()
ts := oauth2.StaticTokenSource(
&oauth2.Token{AccessToken: c.Token},
)
client := oauth2.NewClient(ctx, ts)
return RateLimitedHTTPClient(client, c.WriteDelay, c.ReadDelay, c.RetryDelay, c.ParallelRequests, c.RetryableErrors, c.MaxRetries)
}
func (c *Config) Anonymous() bool {
return c.Token == ""
}
func (c *Config) AnonymousHTTPClient() *http.Client {
client := &http.Client{Transport: &http.Transport{}}
return RateLimitedHTTPClient(client, c.WriteDelay, c.ReadDelay, c.RetryDelay, c.ParallelRequests, c.RetryableErrors, c.MaxRetries)
}
func (c *Config) NewGraphQLClient(client *http.Client) (*githubv4.Client, error) {
uv4, err := url.Parse(c.BaseURL)
if err != nil {
return nil, err
}
if uv4.String() != "https://api.github.com/" {
uv4.Path = path.Join(uv4.Path, "api/graphql/")
} else {
uv4.Path = path.Join(uv4.Path, "graphql")
}
return githubv4.NewEnterpriseClient(uv4.String(), client), nil
}
func (c *Config) NewRESTClient(client *http.Client) (*github.Client, error) {
uv3, err := url.Parse(c.BaseURL)
if err != nil {
return nil, err
}
if uv3.String() != "https://api.github.com/" {
uv3.Path = uv3.Path + "api/v3/"
}
v3client, err := github.NewClient(client).WithEnterpriseURLs(uv3.String(), "")
if err != nil {
return nil, err
}
v3client.BaseURL = uv3
return v3client, nil
}
func (c *Config) ConfigureOwner(owner *Owner) (*Owner, error) {
ctx := context.Background()
owner.name = c.Owner
if owner.name == "" {
if c.Anonymous() {
return owner, nil
}
// Discover authenticated user
user, _, err := owner.v3client.Users.Get(ctx, "")
if err != nil {
return nil, err
}
owner.name = user.GetLogin()
} else {
remoteOrg, _, err := owner.v3client.Organizations.Get(ctx, owner.name)
if err == nil {
if remoteOrg != nil {
owner.id = remoteOrg.GetID()
owner.IsOrganization = true
}
}
}
return owner, nil
}
// Meta returns the meta parameter that is passed into subsequent resources
// https://godoc.org/github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema#ConfigureFunc
func (c *Config) Meta() (interface{}, error) {
var client *http.Client
if c.Anonymous() {
client = c.AnonymousHTTPClient()
} else {
client = c.AuthenticatedHTTPClient()
}
v3client, err := c.NewRESTClient(client)
if err != nil {
return nil, err
}
v4client, err := c.NewGraphQLClient(client)
if err != nil {
return nil, err
}
var owner Owner
owner.v4client = v4client
owner.v3client = v3client
owner.StopContext = context.Background()
_, err = c.ConfigureOwner(&owner)
if err != nil {
return &owner, err
}
return &owner, nil
}
type previewHeaderInjectorTransport struct {
rt http.RoundTripper
previewHeaders map[string]string
}
func newPreviewHeaderInjectorTransport(headers map[string]string, rt http.RoundTripper) *previewHeaderInjectorTransport {
return &previewHeaderInjectorTransport{
rt: rt,
previewHeaders: headers,
}
}
func (injector *previewHeaderInjectorTransport) RoundTrip(req *http.Request) (*http.Response, error) {
for name, value := range injector.previewHeaders {
header := req.Header.Get(name)
if header == "" {
header = value
} else {
header = strings.Join([]string{header, value}, ",")
}
req.Header.Set(name, header)
}
return injector.rt.RoundTrip(req)
}