forked from heimweh/go-pagerduty
/
pagerduty.go
202 lines (167 loc) · 4.64 KB
/
pagerduty.go
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package pagerduty
import (
"bytes"
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"net/url"
"github.com/google/go-querystring/query"
)
const (
defaultBaseURL = "https://api.pagerduty.com"
)
type service struct {
client *Client
}
// Config represents the configuration for a PagerDuty client
type Config struct {
BaseURL string
HTTPClient *http.Client
Token string
UserAgent string
Debug bool
}
// Client manages the communication with the PagerDuty API
type Client struct {
baseURL *url.URL
client *http.Client
Config *Config
Abilities *AbilityService
Addons *AddonService
EscalationPolicies *EscalationPolicyService
Extensions *ExtensionService
MaintenanceWindows *MaintenanceWindowService
Rulesets *RulesetService
Schedules *ScheduleService
Services *ServicesService
Teams *TeamService
ExtensionSchemas *ExtensionSchemaService
Users *UserService
Vendors *VendorService
EventRules *EventRuleService
BusinessServices *BusinessServiceService
ServiceDependencies *ServiceDependencyService
Priorities *PriorityService
}
// Response is a wrapper around http.Response
type Response struct {
*http.Response
}
// NewClient returns a new PagerDuty API client.
func NewClient(config *Config) (*Client, error) {
if config.HTTPClient == nil {
config.HTTPClient = http.DefaultClient
}
if config.BaseURL == "" {
config.BaseURL = defaultBaseURL
}
config.UserAgent = "heimweh/go-pagerduty(terraform)"
baseURL, err := url.Parse(config.BaseURL)
if err != nil {
return nil, err
}
c := &Client{
baseURL: baseURL,
client: config.HTTPClient,
Config: config,
}
c.Abilities = &AbilityService{c}
c.Addons = &AddonService{c}
c.EscalationPolicies = &EscalationPolicyService{c}
c.MaintenanceWindows = &MaintenanceWindowService{c}
c.Rulesets = &RulesetService{c}
c.Schedules = &ScheduleService{c}
c.Services = &ServicesService{c}
c.Teams = &TeamService{c}
c.Users = &UserService{c}
c.Vendors = &VendorService{c}
c.Extensions = &ExtensionService{c}
c.ExtensionSchemas = &ExtensionSchemaService{c}
c.EventRules = &EventRuleService{c}
c.BusinessServices = &BusinessServiceService{c}
c.ServiceDependencies = &ServiceDependencyService{c}
c.Priorities = &PriorityService{c}
return c, nil
}
func (c *Client) newRequest(method, url string, body interface{}) (*http.Request, error) {
var buf io.ReadWriter
if body != nil {
buf = new(bytes.Buffer)
err := json.NewEncoder(buf).Encode(body)
if err != nil {
return nil, err
}
}
if c.Config.Debug {
log.Printf("[DEBUG] PagerDuty - Preparing %s request to %s with body: %s", method, url, buf)
}
u := c.baseURL.String() + url
req, err := http.NewRequest(method, u, buf)
if err != nil {
return nil, err
}
req.Header.Add("Accept", "application/vnd.pagerduty+json;version=2")
req.Header.Add("Authorization", fmt.Sprintf("Token token=%s", c.Config.Token))
req.Header.Add("Content-Type", "application/json")
if c.Config.UserAgent != "" {
req.Header.Add("User-Agent", c.Config.UserAgent)
}
return req, nil
}
func (c *Client) newRequestDo(method, url string, options, body, v interface{}) (*Response, error) {
if options != nil {
values, err := query.Values(options)
if err != nil {
return nil, err
}
if v := values.Encode(); v != "" {
url = fmt.Sprintf("%s?%s", url, v)
}
}
req, err := c.newRequest(method, url, body)
if err != nil {
return nil, err
}
return c.do(req, v)
}
func (c *Client) do(req *http.Request, v interface{}) (*Response, error) {
resp, err := c.client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
response := &Response{resp}
if err := checkResponse(response); err != nil {
return response, err
}
if v != nil {
if err := decodeJSON(response, v); err != nil {
return response, err
}
}
return response, nil
}
// ValidateAuth validates a token against the PagerDuty API
func (c *Client) ValidateAuth() error {
_, _, err := c.Abilities.List()
return err
}
func decodeJSON(res *Response, v interface{}) error {
return json.NewDecoder(res.Body).Decode(v)
}
func checkResponse(res *Response) error {
if res.StatusCode >= 200 && res.StatusCode <= 299 {
return nil
}
return decodeErrorResponse(res)
}
func decodeErrorResponse(res *Response) error {
// Try to decode error response or fallback with standard error
v := &errorResponse{Error: &Error{ErrorResponse: res}}
if err := decodeJSON(res, v); err != nil {
return fmt.Errorf("%s API call to %s failed: %v", res.Request.Method, res.Request.URL.String(), res.Status)
}
return v.Error
}