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gitea/vendor/github.com/xanzy/go-gitlab/gitlab.go
6543 82dbb34c9c
Vendor Update: go-gitlab v0.22.1 -> v0.31.0 (#11136)
* vendor update: go-gitlab to v0.31.0

* migrate client init to v0.31.0

* refactor
2020-04-19 21:23:05 +01:00

1141 lines
34 KiB
Go

//
// Copyright 2017, Sander van Harmelen
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Package gitlab implements a GitLab API client.
package gitlab
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"math/rand"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"sync"
"time"
"github.com/google/go-querystring/query"
"github.com/hashicorp/go-cleanhttp"
retryablehttp "github.com/hashicorp/go-retryablehttp"
"golang.org/x/oauth2"
"golang.org/x/time/rate"
)
const (
defaultBaseURL = "https://gitlab.com/"
apiVersionPath = "api/v4/"
userAgent = "go-gitlab"
headerRateLimit = "RateLimit-Limit"
headerRateReset = "RateLimit-Reset"
)
// authType represents an authentication type within GitLab.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
type authType int
// List of available authentication types.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
const (
basicAuth authType = iota
oAuthToken
privateToken
)
// AccessLevelValue represents a permission level within GitLab.
//
// GitLab API docs: https://docs.gitlab.com/ce/permissions/permissions.html
type AccessLevelValue int
// List of available access levels
//
// GitLab API docs: https://docs.gitlab.com/ce/permissions/permissions.html
const (
NoPermissions AccessLevelValue = 0
GuestPermissions AccessLevelValue = 10
ReporterPermissions AccessLevelValue = 20
DeveloperPermissions AccessLevelValue = 30
MaintainerPermissions AccessLevelValue = 40
OwnerPermissions AccessLevelValue = 50
// These are deprecated and should be removed in a future version
MasterPermissions AccessLevelValue = 40
OwnerPermission AccessLevelValue = 50
)
// BuildStateValue represents a GitLab build state.
type BuildStateValue string
// These constants represent all valid build states.
const (
Pending BuildStateValue = "pending"
Created BuildStateValue = "created"
Running BuildStateValue = "running"
Success BuildStateValue = "success"
Failed BuildStateValue = "failed"
Canceled BuildStateValue = "canceled"
Skipped BuildStateValue = "skipped"
Manual BuildStateValue = "manual"
)
// DeploymentStatusValue represents a Gitlab deployment status.
type DeploymentStatusValue string
// These constants represent all valid deployment statuses.
const (
DeploymentStatusCreated DeploymentStatusValue = "created"
DeploymentStatusRunning DeploymentStatusValue = "running"
DeploymentStatusSuccess DeploymentStatusValue = "success"
DeploymentStatusFailed DeploymentStatusValue = "failed"
DeploymentStatusCanceled DeploymentStatusValue = "canceled"
)
// ISOTime represents an ISO 8601 formatted date
type ISOTime time.Time
// ISO 8601 date format
const iso8601 = "2006-01-02"
// MarshalJSON implements the json.Marshaler interface
func (t ISOTime) MarshalJSON() ([]byte, error) {
if y := time.Time(t).Year(); y < 0 || y >= 10000 {
// ISO 8901 uses 4 digits for the years
return nil, errors.New("json: ISOTime year outside of range [0,9999]")
}
b := make([]byte, 0, len(iso8601)+2)
b = append(b, '"')
b = time.Time(t).AppendFormat(b, iso8601)
b = append(b, '"')
return b, nil
}
// UnmarshalJSON implements the json.Unmarshaler interface
func (t *ISOTime) UnmarshalJSON(data []byte) error {
// Ignore null, like in the main JSON package
if string(data) == "null" {
return nil
}
isotime, err := time.Parse(`"`+iso8601+`"`, string(data))
*t = ISOTime(isotime)
return err
}
// EncodeValues implements the query.Encoder interface
func (t *ISOTime) EncodeValues(key string, v *url.Values) error {
if t == nil || (time.Time(*t)).IsZero() {
return nil
}
v.Add(key, t.String())
return nil
}
// String implements the Stringer interface
func (t ISOTime) String() string {
return time.Time(t).Format(iso8601)
}
// NotificationLevelValue represents a notification level.
type NotificationLevelValue int
// String implements the fmt.Stringer interface.
func (l NotificationLevelValue) String() string {
return notificationLevelNames[l]
}
// MarshalJSON implements the json.Marshaler interface.
func (l NotificationLevelValue) MarshalJSON() ([]byte, error) {
return json.Marshal(l.String())
}
// UnmarshalJSON implements the json.Unmarshaler interface.
func (l *NotificationLevelValue) UnmarshalJSON(data []byte) error {
var raw interface{}
if err := json.Unmarshal(data, &raw); err != nil {
return err
}
switch raw := raw.(type) {
case float64:
*l = NotificationLevelValue(raw)
case string:
*l = notificationLevelTypes[raw]
case nil:
// No action needed.
default:
return fmt.Errorf("json: cannot unmarshal %T into Go value of type %T", raw, *l)
}
return nil
}
// List of valid notification levels.
const (
DisabledNotificationLevel NotificationLevelValue = iota
ParticipatingNotificationLevel
WatchNotificationLevel
GlobalNotificationLevel
MentionNotificationLevel
CustomNotificationLevel
)
var notificationLevelNames = [...]string{
"disabled",
"participating",
"watch",
"global",
"mention",
"custom",
}
var notificationLevelTypes = map[string]NotificationLevelValue{
"disabled": DisabledNotificationLevel,
"participating": ParticipatingNotificationLevel,
"watch": WatchNotificationLevel,
"global": GlobalNotificationLevel,
"mention": MentionNotificationLevel,
"custom": CustomNotificationLevel,
}
// VisibilityValue represents a visibility level within GitLab.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
type VisibilityValue string
// List of available visibility levels.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
const (
PrivateVisibility VisibilityValue = "private"
InternalVisibility VisibilityValue = "internal"
PublicVisibility VisibilityValue = "public"
)
// ProjectCreationLevelValue represents a project creation level within GitLab.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
type ProjectCreationLevelValue string
// List of available project creation levels.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
const (
NoOneProjectCreation ProjectCreationLevelValue = "noone"
MaintainerProjectCreation ProjectCreationLevelValue = "maintainer"
DeveloperProjectCreation ProjectCreationLevelValue = "developer"
)
// SubGroupCreationLevelValue represents a sub group creation level within GitLab.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
type SubGroupCreationLevelValue string
// List of available sub group creation levels.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
const (
OwnerSubGroupCreationLevelValue SubGroupCreationLevelValue = "owner"
MaintainerSubGroupCreationLevelValue SubGroupCreationLevelValue = "maintainer"
)
// VariableTypeValue represents a variable type within GitLab.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
type VariableTypeValue string
// List of available variable types.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/
const (
EnvVariableType VariableTypeValue = "env_var"
FileVariableType VariableTypeValue = "file"
)
// MergeMethodValue represents a project merge type within GitLab.
//
// GitLab API docs: https://docs.gitlab.com/ce/api/projects.html#project-merge-method
type MergeMethodValue string
// List of available merge type
//
// GitLab API docs: https://docs.gitlab.com/ce/api/projects.html#project-merge-method
const (
NoFastForwardMerge MergeMethodValue = "merge"
FastForwardMerge MergeMethodValue = "ff"
RebaseMerge MergeMethodValue = "rebase_merge"
)
// EventTypeValue represents actions type for contribution events
type EventTypeValue string
// List of available action type
//
// GitLab API docs: https://docs.gitlab.com/ce/api/events.html#action-types
const (
CreatedEventType EventTypeValue = "created"
UpdatedEventType EventTypeValue = "updated"
ClosedEventType EventTypeValue = "closed"
ReopenedEventType EventTypeValue = "reopened"
PushedEventType EventTypeValue = "pushed"
CommentedEventType EventTypeValue = "commented"
MergedEventType EventTypeValue = "merged"
JoinedEventType EventTypeValue = "joined"
LeftEventType EventTypeValue = "left"
DestroyedEventType EventTypeValue = "destroyed"
ExpiredEventType EventTypeValue = "expired"
)
// EventTargetTypeValue represents actions type value for contribution events
type EventTargetTypeValue string
// List of available action type
//
// GitLab API docs: https://docs.gitlab.com/ce/api/events.html#target-types
const (
IssueEventTargetType EventTargetTypeValue = "issue"
MilestoneEventTargetType EventTargetTypeValue = "milestone"
MergeRequestEventTargetType EventTargetTypeValue = "merge_request"
NoteEventTargetType EventTargetTypeValue = "note"
ProjectEventTargetType EventTargetTypeValue = "project"
SnippetEventTargetType EventTargetTypeValue = "snippet"
UserEventTargetType EventTargetTypeValue = "user"
)
// A Client manages communication with the GitLab API.
type Client struct {
// HTTP client used to communicate with the API.
client *retryablehttp.Client
// Base URL for API requests. Defaults to the public GitLab API, but can be
// set to a domain endpoint to use with a self hosted GitLab server. baseURL
// should always be specified with a trailing slash.
baseURL *url.URL
// disableRetries is used to disable the default retry logic.
disableRetries bool
// configLimiter is used to make sure the limiter is configured exactly
// once and block all other calls until the initial (one) call is done.
configureLimiterOnce sync.Once
// Limiter is used to limit API calls and prevent 429 responses.
limiter *rate.Limiter
// Token type used to make authenticated API calls.
authType authType
// Username and password used for basix authentication.
username, password string
// Token used to make authenticated API calls.
token string
// User agent used when communicating with the GitLab API.
UserAgent string
// Services used for talking to different parts of the GitLab API.
AccessRequests *AccessRequestsService
Applications *ApplicationsService
AwardEmoji *AwardEmojiService
Boards *IssueBoardsService
Branches *BranchesService
BroadcastMessage *BroadcastMessagesService
CIYMLTemplate *CIYMLTemplatesService
Commits *CommitsService
ContainerRegistry *ContainerRegistryService
CustomAttribute *CustomAttributesService
DeployKeys *DeployKeysService
DeployTokens *DeployTokensService
Deployments *DeploymentsService
Discussions *DiscussionsService
Environments *EnvironmentsService
Epics *EpicsService
Events *EventsService
Features *FeaturesService
GitIgnoreTemplates *GitIgnoreTemplatesService
GroupBadges *GroupBadgesService
GroupCluster *GroupClustersService
GroupIssueBoards *GroupIssueBoardsService
GroupLabels *GroupLabelsService
GroupMembers *GroupMembersService
GroupMilestones *GroupMilestonesService
GroupVariables *GroupVariablesService
Groups *GroupsService
IssueLinks *IssueLinksService
Issues *IssuesService
Jobs *JobsService
Keys *KeysService
Labels *LabelsService
License *LicenseService
LicenseTemplates *LicenseTemplatesService
MergeRequestApprovals *MergeRequestApprovalsService
MergeRequests *MergeRequestsService
Milestones *MilestonesService
Namespaces *NamespacesService
Notes *NotesService
NotificationSettings *NotificationSettingsService
PagesDomains *PagesDomainsService
PipelineSchedules *PipelineSchedulesService
PipelineTriggers *PipelineTriggersService
Pipelines *PipelinesService
ProjectBadges *ProjectBadgesService
ProjectCluster *ProjectClustersService
ProjectImportExport *ProjectImportExportService
ProjectMembers *ProjectMembersService
ProjectSnippets *ProjectSnippetsService
ProjectVariables *ProjectVariablesService
Projects *ProjectsService
ProtectedBranches *ProtectedBranchesService
ProtectedTags *ProtectedTagsService
ReleaseLinks *ReleaseLinksService
Releases *ReleasesService
Repositories *RepositoriesService
RepositoryFiles *RepositoryFilesService
ResourceLabelEvents *ResourceLabelEventsService
Runners *RunnersService
Search *SearchService
Services *ServicesService
Settings *SettingsService
Sidekiq *SidekiqService
Snippets *SnippetsService
SystemHooks *SystemHooksService
Tags *TagsService
Todos *TodosService
Users *UsersService
Validate *ValidateService
Version *VersionService
Wikis *WikisService
}
// ListOptions specifies the optional parameters to various List methods that
// support pagination.
type ListOptions struct {
// For paginated result sets, page of results to retrieve.
Page int `url:"page,omitempty" json:"page,omitempty"`
// For paginated result sets, the number of results to include per page.
PerPage int `url:"per_page,omitempty" json:"per_page,omitempty"`
}
// NewClient returns a new GitLab API client. To use API methods which require
// authentication, provide a valid private or personal token.
func NewClient(token string, options ...ClientOptionFunc) (*Client, error) {
client, err := newClient(options...)
if err != nil {
return nil, err
}
client.authType = privateToken
client.token = token
return client, nil
}
// NewBasicAuthClient returns a new GitLab API client. To use API methods which
// require authentication, provide a valid username and password.
func NewBasicAuthClient(username, password string, options ...ClientOptionFunc) (*Client, error) {
client, err := newClient(options...)
if err != nil {
return nil, err
}
client.authType = basicAuth
client.username = username
client.password = password
err = client.requestOAuthToken(context.Background())
if err != nil {
return nil, err
}
return client, nil
}
// NewOAuthClient returns a new GitLab API client. To use API methods which
// require authentication, provide a valid oauth token.
func NewOAuthClient(token string, options ...ClientOptionFunc) (*Client, error) {
client, err := newClient(options...)
if err != nil {
return nil, err
}
client.authType = oAuthToken
client.token = token
return client, nil
}
func (c *Client) requestOAuthToken(ctx context.Context) error {
config := &oauth2.Config{
Endpoint: oauth2.Endpoint{
AuthURL: fmt.Sprintf("%s://%s/oauth/authorize", c.BaseURL().Scheme, c.BaseURL().Host),
TokenURL: fmt.Sprintf("%s://%s/oauth/token", c.BaseURL().Scheme, c.BaseURL().Host),
},
}
ctx = context.WithValue(ctx, oauth2.HTTPClient, c.client)
t, err := config.PasswordCredentialsToken(ctx, c.username, c.password)
if err != nil {
return err
}
c.token = t.AccessToken
return nil
}
func newClient(options ...ClientOptionFunc) (*Client, error) {
c := &Client{UserAgent: userAgent}
// Configure the HTTP client.
c.client = &retryablehttp.Client{
Backoff: c.retryHTTPBackoff,
CheckRetry: c.retryHTTPCheck,
ErrorHandler: retryablehttp.PassthroughErrorHandler,
HTTPClient: cleanhttp.DefaultPooledClient(),
RetryWaitMin: 100 * time.Millisecond,
RetryWaitMax: 400 * time.Millisecond,
RetryMax: 5,
}
// Set the default base URL.
c.setBaseURL(defaultBaseURL)
// Apply any given client options.
for _, fn := range options {
if fn == nil {
continue
}
if err := fn(c); err != nil {
return nil, err
}
}
// Create the internal timeStats service.
timeStats := &timeStatsService{client: c}
// Create all the public services.
c.AccessRequests = &AccessRequestsService{client: c}
c.Applications = &ApplicationsService{client: c}
c.AwardEmoji = &AwardEmojiService{client: c}
c.Boards = &IssueBoardsService{client: c}
c.Branches = &BranchesService{client: c}
c.BroadcastMessage = &BroadcastMessagesService{client: c}
c.CIYMLTemplate = &CIYMLTemplatesService{client: c}
c.Commits = &CommitsService{client: c}
c.ContainerRegistry = &ContainerRegistryService{client: c}
c.CustomAttribute = &CustomAttributesService{client: c}
c.DeployKeys = &DeployKeysService{client: c}
c.DeployTokens = &DeployTokensService{client: c}
c.Deployments = &DeploymentsService{client: c}
c.Discussions = &DiscussionsService{client: c}
c.Environments = &EnvironmentsService{client: c}
c.Epics = &EpicsService{client: c}
c.Events = &EventsService{client: c}
c.Features = &FeaturesService{client: c}
c.GitIgnoreTemplates = &GitIgnoreTemplatesService{client: c}
c.GroupBadges = &GroupBadgesService{client: c}
c.GroupCluster = &GroupClustersService{client: c}
c.GroupIssueBoards = &GroupIssueBoardsService{client: c}
c.GroupLabels = &GroupLabelsService{client: c}
c.GroupMembers = &GroupMembersService{client: c}
c.GroupMilestones = &GroupMilestonesService{client: c}
c.GroupVariables = &GroupVariablesService{client: c}
c.Groups = &GroupsService{client: c}
c.IssueLinks = &IssueLinksService{client: c}
c.Issues = &IssuesService{client: c, timeStats: timeStats}
c.Jobs = &JobsService{client: c}
c.Keys = &KeysService{client: c}
c.Labels = &LabelsService{client: c}
c.License = &LicenseService{client: c}
c.LicenseTemplates = &LicenseTemplatesService{client: c}
c.MergeRequestApprovals = &MergeRequestApprovalsService{client: c}
c.MergeRequests = &MergeRequestsService{client: c, timeStats: timeStats}
c.Milestones = &MilestonesService{client: c}
c.Namespaces = &NamespacesService{client: c}
c.Notes = &NotesService{client: c}
c.NotificationSettings = &NotificationSettingsService{client: c}
c.PagesDomains = &PagesDomainsService{client: c}
c.PipelineSchedules = &PipelineSchedulesService{client: c}
c.PipelineTriggers = &PipelineTriggersService{client: c}
c.Pipelines = &PipelinesService{client: c}
c.ProjectBadges = &ProjectBadgesService{client: c}
c.ProjectCluster = &ProjectClustersService{client: c}
c.ProjectImportExport = &ProjectImportExportService{client: c}
c.ProjectMembers = &ProjectMembersService{client: c}
c.ProjectSnippets = &ProjectSnippetsService{client: c}
c.ProjectVariables = &ProjectVariablesService{client: c}
c.Projects = &ProjectsService{client: c}
c.ProtectedBranches = &ProtectedBranchesService{client: c}
c.ProtectedTags = &ProtectedTagsService{client: c}
c.ReleaseLinks = &ReleaseLinksService{client: c}
c.Releases = &ReleasesService{client: c}
c.Repositories = &RepositoriesService{client: c}
c.RepositoryFiles = &RepositoryFilesService{client: c}
c.ResourceLabelEvents = &ResourceLabelEventsService{client: c}
c.Runners = &RunnersService{client: c}
c.Search = &SearchService{client: c}
c.Services = &ServicesService{client: c}
c.Settings = &SettingsService{client: c}
c.Sidekiq = &SidekiqService{client: c}
c.Snippets = &SnippetsService{client: c}
c.SystemHooks = &SystemHooksService{client: c}
c.Tags = &TagsService{client: c}
c.Todos = &TodosService{client: c}
c.Users = &UsersService{client: c}
c.Validate = &ValidateService{client: c}
c.Version = &VersionService{client: c}
c.Wikis = &WikisService{client: c}
return c, nil
}
// retryHTTPCheck provides a callback for Client.CheckRetry which
// will retry both rate limit (429) and server (>= 500) errors.
func (c *Client) retryHTTPCheck(ctx context.Context, resp *http.Response, err error) (bool, error) {
if ctx.Err() != nil {
return false, ctx.Err()
}
if err != nil {
return false, err
}
if !c.disableRetries && (resp.StatusCode == 429 || resp.StatusCode >= 500) {
return true, nil
}
return false, nil
}
// retryHTTPBackoff provides a generic callback for Client.Backoff which
// will pass through all calls based on the status code of the response.
func (c *Client) retryHTTPBackoff(min, max time.Duration, attemptNum int, resp *http.Response) time.Duration {
// Use the rate limit backoff function when we are rate limited.
if resp != nil && resp.StatusCode == 429 {
return rateLimitBackoff(min, max, attemptNum, resp)
}
// Set custom duration's when we experience a service interruption.
min = 700 * time.Millisecond
max = 900 * time.Millisecond
return retryablehttp.LinearJitterBackoff(min, max, attemptNum, resp)
}
// rateLimitBackoff provides a callback for Client.Backoff which will use the
// RateLimit-Reset header to determine the time to wait. We add some jitter
// to prevent a thundering herd.
//
// min and max are mainly used for bounding the jitter that will be added to
// the reset time retrieved from the headers. But if the final wait time is
// less then min, min will be used instead.
func rateLimitBackoff(min, max time.Duration, attemptNum int, resp *http.Response) time.Duration {
// rnd is used to generate pseudo-random numbers.
rnd := rand.New(rand.NewSource(time.Now().UnixNano()))
// First create some jitter bounded by the min and max durations.
jitter := time.Duration(rnd.Float64() * float64(max-min))
if resp != nil {
if v := resp.Header.Get(headerRateReset); v != "" {
if reset, _ := strconv.ParseInt(v, 10, 64); reset > 0 {
// Only update min if the given time to wait is longer.
if wait := time.Until(time.Unix(reset, 0)); wait > min {
min = wait
}
}
}
}
return min + jitter
}
// configureLimiter configures the rate limiter.
func (c *Client) configureLimiter() error {
// Set default values for when rate limiting is disabled.
limit := rate.Inf
burst := 0
defer func() {
// Create a new limiter using the calculated values.
c.limiter = rate.NewLimiter(limit, burst)
}()
// Create a new request.
req, err := http.NewRequest("GET", c.baseURL.String(), nil)
if err != nil {
return err
}
// Make a single request to retrieve the rate limit headers.
resp, err := c.client.HTTPClient.Do(req)
if err != nil {
return err
}
resp.Body.Close()
if v := resp.Header.Get(headerRateLimit); v != "" {
if rateLimit, _ := strconv.ParseFloat(v, 64); rateLimit > 0 {
// The rate limit is based on requests per minute, so for our limiter to
// work correctly we devide the limit by 60 to get the limit per second.
rateLimit /= 60
// Configure the limit and burst using a split of 2/3 for the limit and
// 1/3 for the burst. This enables clients to burst 1/3 of the allowed
// calls before the limiter kicks in. The remaining calls will then be
// spread out evenly using intervals of time.Second / limit which should
// prevent hitting the rate limit.
limit = rate.Limit(rateLimit * 0.66)
burst = int(rateLimit * 0.33)
}
}
return nil
}
// BaseURL return a copy of the baseURL.
func (c *Client) BaseURL() *url.URL {
u := *c.baseURL
return &u
}
// setBaseURL sets the base URL for API requests to a custom endpoint.
func (c *Client) setBaseURL(urlStr string) error {
// Make sure the given URL end with a slash
if !strings.HasSuffix(urlStr, "/") {
urlStr += "/"
}
baseURL, err := url.Parse(urlStr)
if err != nil {
return err
}
if !strings.HasSuffix(baseURL.Path, apiVersionPath) {
baseURL.Path += apiVersionPath
}
// Update the base URL of the client.
c.baseURL = baseURL
return nil
}
// NewRequest creates an API request. A relative URL path can be provided in
// path, in which case it is resolved relative to the base URL of the Client.
// Relative URL paths should always be specified without a preceding slash. If
// specified, the value pointed to by body is JSON encoded and included as the
// request body.
func (c *Client) NewRequest(method, path string, opt interface{}, options []RequestOptionFunc) (*retryablehttp.Request, error) {
u := *c.baseURL
unescaped, err := url.PathUnescape(path)
if err != nil {
return nil, err
}
// Set the encoded path data
u.RawPath = c.baseURL.Path + path
u.Path = c.baseURL.Path + unescaped
// Create a request specific headers map.
reqHeaders := make(http.Header)
reqHeaders.Set("Accept", "application/json")
switch c.authType {
case basicAuth, oAuthToken:
reqHeaders.Set("Authorization", "Bearer "+c.token)
case privateToken:
reqHeaders.Set("PRIVATE-TOKEN", c.token)
}
if c.UserAgent != "" {
reqHeaders.Set("User-Agent", c.UserAgent)
}
var body interface{}
switch {
case method == "POST" || method == "PUT":
reqHeaders.Set("Content-Type", "application/json")
if opt != nil {
body, err = json.Marshal(opt)
if err != nil {
return nil, err
}
}
case opt != nil:
q, err := query.Values(opt)
if err != nil {
return nil, err
}
u.RawQuery = q.Encode()
}
req, err := retryablehttp.NewRequest(method, u.String(), body)
if err != nil {
return nil, err
}
for _, fn := range options {
if fn == nil {
continue
}
if err := fn(req); err != nil {
return nil, err
}
}
// Set the request specific headers.
for k, v := range reqHeaders {
req.Header[k] = v
}
return req, nil
}
// Response is a GitLab API response. This wraps the standard http.Response
// returned from GitLab and provides convenient access to things like
// pagination links.
type Response struct {
*http.Response
// These fields provide the page values for paginating through a set of
// results. Any or all of these may be set to the zero value for
// responses that are not part of a paginated set, or for which there
// are no additional pages.
TotalItems int
TotalPages int
ItemsPerPage int
CurrentPage int
NextPage int
PreviousPage int
}
// newResponse creates a new Response for the provided http.Response.
func newResponse(r *http.Response) *Response {
response := &Response{Response: r}
response.populatePageValues()
return response
}
const (
xTotal = "X-Total"
xTotalPages = "X-Total-Pages"
xPerPage = "X-Per-Page"
xPage = "X-Page"
xNextPage = "X-Next-Page"
xPrevPage = "X-Prev-Page"
)
// populatePageValues parses the HTTP Link response headers and populates the
// various pagination link values in the Response.
func (r *Response) populatePageValues() {
if totalItems := r.Response.Header.Get(xTotal); totalItems != "" {
r.TotalItems, _ = strconv.Atoi(totalItems)
}
if totalPages := r.Response.Header.Get(xTotalPages); totalPages != "" {
r.TotalPages, _ = strconv.Atoi(totalPages)
}
if itemsPerPage := r.Response.Header.Get(xPerPage); itemsPerPage != "" {
r.ItemsPerPage, _ = strconv.Atoi(itemsPerPage)
}
if currentPage := r.Response.Header.Get(xPage); currentPage != "" {
r.CurrentPage, _ = strconv.Atoi(currentPage)
}
if nextPage := r.Response.Header.Get(xNextPage); nextPage != "" {
r.NextPage, _ = strconv.Atoi(nextPage)
}
if previousPage := r.Response.Header.Get(xPrevPage); previousPage != "" {
r.PreviousPage, _ = strconv.Atoi(previousPage)
}
}
// Do sends an API request and returns the API response. The API response is
// JSON decoded and stored in the value pointed to by v, or returned as an
// error if an API error has occurred. If v implements the io.Writer
// interface, the raw response body will be written to v, without attempting to
// first decode it.
func (c *Client) Do(req *retryablehttp.Request, v interface{}) (*Response, error) {
// If not yet configured, try to configure the rate limiter. Fail
// silently as the limiter will be disabled in case of an error.
c.configureLimiterOnce.Do(func() { c.configureLimiter() })
// Wait will block until the limiter can obtain a new token.
if err := c.limiter.Wait(req.Context()); err != nil {
return nil, err
}
resp, err := c.client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusUnauthorized && c.authType == basicAuth {
err = c.requestOAuthToken(req.Context())
if err != nil {
return nil, err
}
return c.Do(req, v)
}
response := newResponse(resp)
err = CheckResponse(resp)
if err != nil {
// Even though there was an error, we still return the response
// in case the caller wants to inspect it further.
return response, err
}
if v != nil {
if w, ok := v.(io.Writer); ok {
_, err = io.Copy(w, resp.Body)
} else {
err = json.NewDecoder(resp.Body).Decode(v)
}
}
return response, err
}
// Helper function to accept and format both the project ID or name as project
// identifier for all API calls.
func parseID(id interface{}) (string, error) {
switch v := id.(type) {
case int:
return strconv.Itoa(v), nil
case string:
return v, nil
default:
return "", fmt.Errorf("invalid ID type %#v, the ID must be an int or a string", id)
}
}
// Helper function to escape a project identifier.
func pathEscape(s string) string {
return strings.Replace(url.PathEscape(s), ".", "%2E", -1)
}
// An ErrorResponse reports one or more errors caused by an API request.
//
// GitLab API docs:
// https://docs.gitlab.com/ce/api/README.html#data-validation-and-error-reporting
type ErrorResponse struct {
Body []byte
Response *http.Response
Message string
}
func (e *ErrorResponse) Error() string {
path, _ := url.QueryUnescape(e.Response.Request.URL.Path)
u := fmt.Sprintf("%s://%s%s", e.Response.Request.URL.Scheme, e.Response.Request.URL.Host, path)
return fmt.Sprintf("%s %s: %d %s", e.Response.Request.Method, u, e.Response.StatusCode, e.Message)
}
// CheckResponse checks the API response for errors, and returns them if present.
func CheckResponse(r *http.Response) error {
switch r.StatusCode {
case 200, 201, 202, 204, 304:
return nil
}
errorResponse := &ErrorResponse{Response: r}
data, err := ioutil.ReadAll(r.Body)
if err == nil && data != nil {
errorResponse.Body = data
var raw interface{}
if err := json.Unmarshal(data, &raw); err != nil {
errorResponse.Message = "failed to parse unknown error format"
} else {
errorResponse.Message = parseError(raw)
}
}
return errorResponse
}
// Format:
// {
// "message": {
// "<property-name>": [
// "<error-message>",
// "<error-message>",
// ...
// ],
// "<embed-entity>": {
// "<property-name>": [
// "<error-message>",
// "<error-message>",
// ...
// ],
// }
// },
// "error": "<error-message>"
// }
func parseError(raw interface{}) string {
switch raw := raw.(type) {
case string:
return raw
case []interface{}:
var errs []string
for _, v := range raw {
errs = append(errs, parseError(v))
}
return fmt.Sprintf("[%s]", strings.Join(errs, ", "))
case map[string]interface{}:
var errs []string
for k, v := range raw {
errs = append(errs, fmt.Sprintf("{%s: %s}", k, parseError(v)))
}
sort.Strings(errs)
return strings.Join(errs, ", ")
default:
return fmt.Sprintf("failed to parse unexpected error type: %T", raw)
}
}
// Bool is a helper routine that allocates a new bool value
// to store v and returns a pointer to it.
func Bool(v bool) *bool {
p := new(bool)
*p = v
return p
}
// Int is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it, but unlike Int32
// its argument value is an int.
func Int(v int) *int {
p := new(int)
*p = v
return p
}
// String is a helper routine that allocates a new string value
// to store v and returns a pointer to it.
func String(v string) *string {
p := new(string)
*p = v
return p
}
// Time is a helper routine that allocates a new time.Time value
// to store v and returns a pointer to it.
func Time(v time.Time) *time.Time {
p := new(time.Time)
*p = v
return p
}
// AccessLevel is a helper routine that allocates a new AccessLevelValue
// to store v and returns a pointer to it.
func AccessLevel(v AccessLevelValue) *AccessLevelValue {
p := new(AccessLevelValue)
*p = v
return p
}
// BuildState is a helper routine that allocates a new BuildStateValue
// to store v and returns a pointer to it.
func BuildState(v BuildStateValue) *BuildStateValue {
p := new(BuildStateValue)
*p = v
return p
}
// DeploymentStatus is a helper routine that allocates a new
// DeploymentStatusValue to store v and returns a pointer to it.
func DeploymentStatus(v DeploymentStatusValue) *DeploymentStatusValue {
p := new(DeploymentStatusValue)
*p = v
return p
}
// NotificationLevel is a helper routine that allocates a new NotificationLevelValue
// to store v and returns a pointer to it.
func NotificationLevel(v NotificationLevelValue) *NotificationLevelValue {
p := new(NotificationLevelValue)
*p = v
return p
}
// VariableType is a helper routine that allocates a new VariableTypeValue
// to store v and returns a pointer to it.
func VariableType(v VariableTypeValue) *VariableTypeValue {
p := new(VariableTypeValue)
*p = v
return p
}
// Visibility is a helper routine that allocates a new VisibilityValue
// to store v and returns a pointer to it.
func Visibility(v VisibilityValue) *VisibilityValue {
p := new(VisibilityValue)
*p = v
return p
}
// ProjectCreationLevel is a helper routine that allocates a new ProjectCreationLevelValue
// to store v and returns a pointer to it.
func ProjectCreationLevel(v ProjectCreationLevelValue) *ProjectCreationLevelValue {
p := new(ProjectCreationLevelValue)
*p = v
return p
}
// SubGroupCreationLevel is a helper routine that allocates a new SubGroupCreationLevelValue
// to store v and returns a pointer to it.
func SubGroupCreationLevel(v SubGroupCreationLevelValue) *SubGroupCreationLevelValue {
p := new(SubGroupCreationLevelValue)
*p = v
return p
}
// MergeMethod is a helper routine that allocates a new MergeMethod
// to sotre v and returns a pointer to it.
func MergeMethod(v MergeMethodValue) *MergeMethodValue {
p := new(MergeMethodValue)
*p = v
return p
}
// BoolValue is a boolean value with advanced json unmarshaling features.
type BoolValue bool
// UnmarshalJSON allows 1 and 0 to be considered as boolean values
// Needed for https://gitlab.com/gitlab-org/gitlab-ce/issues/50122
func (t *BoolValue) UnmarshalJSON(b []byte) error {
switch string(b) {
case `"1"`:
*t = true
return nil
case `"0"`:
*t = false
return nil
default:
var v bool
err := json.Unmarshal(b, &v)
*t = BoolValue(v)
return err
}
}