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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| // File copied from https://github.com/go-playground/webhooks/blob/master/azuredevops/azuredevops.go | ||
| // TODO Basic Auth is added here since it's not available upstream. Remove ths file once https://github.com/go-playground/webhooks/pull/191 is merged | ||
|
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| package azuredevops | ||
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| import ( | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
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| "github.com/go-playground/webhooks/v6/azuredevops" | ||
| ) | ||
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| // parse errors | ||
| var ( | ||
| ErrInvalidHTTPMethod = errors.New("invalid HTTP Method") | ||
| ErrParsingPayload = errors.New("error parsing payload") | ||
| ErrBasicAuthVerificationFailed = errors.New("basic auth verification failed") | ||
| ) | ||
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| // Option is a configuration option for the webhook | ||
| type Option func(*Webhook) error | ||
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| // Options is a namespace var for configuration options | ||
| var Options = WebhookOptions{} | ||
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| // WebhookOptions is a namespace for configuration option methods | ||
| type WebhookOptions struct{} | ||
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| // BasicAuth verifies payload using basic auth | ||
| func (WebhookOptions) BasicAuth(username, password string) Option { | ||
| return func(hook *Webhook) error { | ||
| hook.username = username | ||
| hook.password = password | ||
| return nil | ||
| } | ||
| } | ||
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| // Webhook instance contains all methods needed to process events | ||
| type Webhook struct { | ||
| username string | ||
| password string | ||
| } | ||
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| // New creates and returns a WebHook instance | ||
| func New(options ...Option) (*Webhook, error) { | ||
| hook := new(Webhook) | ||
| for _, opt := range options { | ||
| if err := opt(hook); err != nil { | ||
| return nil, errors.New("Error applying Option") | ||
| } | ||
| } | ||
| return hook, nil | ||
| } | ||
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| // Parse verifies and parses the events specified and returns the payload object or an error | ||
| func (hook Webhook) Parse(r *http.Request, events ...azuredevops.Event) (interface{}, error) { | ||
| defer func() { | ||
| _, _ = io.Copy(io.Discard, r.Body) | ||
| _ = r.Body.Close() | ||
| }() | ||
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| if !hook.verifyBasicAuth(r) { | ||
| return nil, ErrBasicAuthVerificationFailed | ||
| } | ||
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| if r.Method != http.MethodPost { | ||
| return nil, ErrInvalidHTTPMethod | ||
| } | ||
|
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| payload, err := io.ReadAll(r.Body) | ||
| if err != nil || len(payload) == 0 { | ||
| return nil, ErrParsingPayload | ||
| } | ||
|
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| var pl azuredevops.BasicEvent | ||
| err = json.Unmarshal([]byte(payload), &pl) | ||
| if err != nil { | ||
| return nil, ErrParsingPayload | ||
| } | ||
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| switch pl.EventType { | ||
| case azuredevops.GitPushEventType: | ||
| var fpl azuredevops.GitPushEvent | ||
| err = json.Unmarshal([]byte(payload), &fpl) | ||
| return fpl, err | ||
| case azuredevops.GitPullRequestCreatedEventType, azuredevops.GitPullRequestMergedEventType, azuredevops.GitPullRequestUpdatedEventType: | ||
| var fpl azuredevops.GitPullRequestEvent | ||
| err = json.Unmarshal([]byte(payload), &fpl) | ||
| return fpl, err | ||
| case azuredevops.BuildCompleteEventType: | ||
| var fpl azuredevops.BuildCompleteEvent | ||
| err = json.Unmarshal([]byte(payload), &fpl) | ||
| return fpl, err | ||
| default: | ||
| return nil, fmt.Errorf("unknown event %s", pl.EventType) | ||
| } | ||
| } | ||
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| func (hook Webhook) verifyBasicAuth(r *http.Request) bool { | ||
| // skip validation if username or password was not provided | ||
| if hook.username == "" && hook.password == "" { | ||
| return true | ||
| } | ||
| username, password, ok := r.BasicAuth() | ||
|
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| return ok && username == hook.username && password == hook.password | ||
| } |
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