dex/vendor/github.com/mailgun/mailgun-go/mailing_lists.go
2016-03-09 13:04:05 -08:00

307 lines
11 KiB
Go

package mailgun
import (
"encoding/json"
"fmt"
"github.com/mbanzon/simplehttp"
"strconv"
)
// A mailing list may have one of three membership modes.
// ReadOnly specifies that nobody, including Members,
// may send messages to the mailing list.
// Messages distributed on such lists come from list administrator accounts only.
// Members specifies that only those who subscribe to the mailing list may send messages.
// Everyone specifies that anyone and everyone may both read and submit messages
// to the mailing list, including non-subscribers.
const (
ReadOnly = "readonly"
Members = "members"
Everyone = "everyone"
)
// Mailing list members have an attribute that determines if they've subscribed to the mailing list or not.
// This attribute may be used to filter the results returned by GetSubscribers().
// All, Subscribed, and Unsubscribed provides a convenient and readable syntax for specifying the scope of the search.
var (
All *bool = nil
Subscribed *bool = &yes
Unsubscribed *bool = &no
)
// yes and no are variables which provide us the ability to take their addresses.
// Subscribed and Unsubscribed are pointers to these booleans.
//
// We use a pointer to boolean as a kind of trinary data type:
// if nil, the relevant data type remains unspecified.
// Otherwise, its value is either true or false.
var (
yes bool = true
no bool = false
)
// A List structure provides information for a mailing list.
//
// AccessLevel may be one of ReadOnly, Members, or Everyone.
type List struct {
Address string `json:"address",omitempty"`
Name string `json:"name",omitempty"`
Description string `json:"description",omitempty"`
AccessLevel string `json:"access_level",omitempty"`
CreatedAt string `json:"created_at",omitempty"`
MembersCount int `json:"members_count",omitempty"`
}
// A Member structure represents a member of the mailing list.
// The Vars field can represent any JSON-encodable data.
type Member struct {
Address string `json:"address,omitempty"`
Name string `json:"name,omitempty"`
Subscribed *bool `json:"subscribed,omitempty"`
Vars map[string]interface{} `json:"vars,omitempty"`
}
// GetLists returns the specified set of mailing lists administered by your account.
func (mg *MailgunImpl) GetLists(limit, skip int, filter string) (int, []List, error) {
r := simplehttp.NewHTTPRequest(generatePublicApiUrl(listsEndpoint))
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
p := simplehttp.NewUrlEncodedPayload()
if limit != DefaultLimit {
p.AddValue("limit", strconv.Itoa(limit))
}
if skip != DefaultSkip {
p.AddValue("skip", strconv.Itoa(skip))
}
if filter != "" {
p.AddValue("address", filter)
}
var envelope struct {
Items []List `json:"items"`
TotalCount int `json:"total_count"`
}
response, err := makeRequest(r, "GET", p)
if err != nil {
return -1, nil, err
}
err = response.ParseFromJSON(&envelope)
return envelope.TotalCount, envelope.Items, err
}
// CreateList creates a new mailing list under your Mailgun account.
// You need specify only the Address and Name members of the prototype;
// Description, and AccessLevel are optional.
// If unspecified, Description remains blank,
// while AccessLevel defaults to Everyone.
func (mg *MailgunImpl) CreateList(prototype List) (List, error) {
r := simplehttp.NewHTTPRequest(generatePublicApiUrl(listsEndpoint))
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
p := simplehttp.NewUrlEncodedPayload()
if prototype.Address != "" {
p.AddValue("address", prototype.Address)
}
if prototype.Name != "" {
p.AddValue("name", prototype.Name)
}
if prototype.Description != "" {
p.AddValue("description", prototype.Description)
}
if prototype.AccessLevel != "" {
p.AddValue("access_level", prototype.AccessLevel)
}
response, err := makePostRequest(r, p)
if err != nil {
return List{}, err
}
var l List
err = response.ParseFromJSON(&l)
return l, err
}
// DeleteList removes all current members of the list, then removes the list itself.
// Attempts to send e-mail to the list will fail subsequent to this call.
func (mg *MailgunImpl) DeleteList(addr string) error {
r := simplehttp.NewHTTPRequest(generatePublicApiUrl(listsEndpoint) + "/" + addr)
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
_, err := makeDeleteRequest(r)
return err
}
// GetListByAddress allows your application to recover the complete List structure
// representing a mailing list, so long as you have its e-mail address.
func (mg *MailgunImpl) GetListByAddress(addr string) (List, error) {
r := simplehttp.NewHTTPRequest(generatePublicApiUrl(listsEndpoint) + "/" + addr)
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
response, err := makeGetRequest(r)
var envelope struct {
List `json:"list"`
}
err = response.ParseFromJSON(&envelope)
return envelope.List, err
}
// UpdateList allows you to change various attributes of a list.
// Address, Name, Description, and AccessLevel are all optional;
// only those fields which are set in the prototype will change.
//
// Be careful! If changing the address of a mailing list,
// e-mail sent to the old address will not succeed.
// Make sure you account for the change accordingly.
func (mg *MailgunImpl) UpdateList(addr string, prototype List) (List, error) {
r := simplehttp.NewHTTPRequest(generatePublicApiUrl(listsEndpoint) + "/" + addr)
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
p := simplehttp.NewUrlEncodedPayload()
if prototype.Address != "" {
p.AddValue("address", prototype.Address)
}
if prototype.Name != "" {
p.AddValue("name", prototype.Name)
}
if prototype.Description != "" {
p.AddValue("description", prototype.Description)
}
if prototype.AccessLevel != "" {
p.AddValue("access_level", prototype.AccessLevel)
}
var l List
response, err := makePutRequest(r, p)
if err != nil {
return l, err
}
err = response.ParseFromJSON(&l)
return l, err
}
// GetMembers returns the list of members belonging to the indicated mailing list.
// The s parameter can be set to one of three settings to help narrow the returned data set:
// All indicates that you want both Members and unsubscribed members alike, while
// Subscribed and Unsubscribed indicate you want only those eponymous subsets.
func (mg *MailgunImpl) GetMembers(limit, skip int, s *bool, addr string) (int, []Member, error) {
r := simplehttp.NewHTTPRequest(generateMemberApiUrl(listsEndpoint, addr))
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
p := simplehttp.NewUrlEncodedPayload()
if limit != DefaultLimit {
p.AddValue("limit", strconv.Itoa(limit))
}
if skip != DefaultSkip {
p.AddValue("skip", strconv.Itoa(skip))
}
if s != nil {
p.AddValue("subscribed", yesNo(*s))
}
var envelope struct {
TotalCount int `json:"total_count"`
Items []Member `json:"items"`
}
response, err := makeRequest(r, "GET", p)
if err != nil {
return -1, nil, err
}
err = response.ParseFromJSON(&envelope)
return envelope.TotalCount, envelope.Items, err
}
// GetMemberByAddress returns a complete Member structure for a member of a mailing list,
// given only their subscription e-mail address.
func (mg *MailgunImpl) GetMemberByAddress(s, l string) (Member, error) {
r := simplehttp.NewHTTPRequest(generateMemberApiUrl(listsEndpoint, l) + "/" + s)
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
response, err := makeGetRequest(r)
if err != nil {
return Member{}, err
}
var envelope struct {
Member Member `json:"member"`
}
err = response.ParseFromJSON(&envelope)
return envelope.Member, err
}
// CreateMember registers a new member of the indicated mailing list.
// If merge is set to true, then the registration may update an existing Member's settings.
// Otherwise, an error will occur if you attempt to add a member with a duplicate e-mail address.
func (mg *MailgunImpl) CreateMember(merge bool, addr string, prototype Member) error {
vs, err := json.Marshal(prototype.Vars)
if err != nil {
return err
}
r := simplehttp.NewHTTPRequest(generateMemberApiUrl(listsEndpoint, addr))
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
p := simplehttp.NewFormDataPayload()
p.AddValue("upsert", yesNo(merge))
p.AddValue("address", prototype.Address)
p.AddValue("name", prototype.Name)
p.AddValue("vars", string(vs))
if prototype.Subscribed != nil {
p.AddValue("subscribed", yesNo(*prototype.Subscribed))
}
_, err = makePostRequest(r, p)
return err
}
// UpdateMember lets you change certain details about the indicated mailing list member.
// Address, Name, Vars, and Subscribed fields may be changed.
func (mg *MailgunImpl) UpdateMember(s, l string, prototype Member) (Member, error) {
r := simplehttp.NewHTTPRequest(generateMemberApiUrl(listsEndpoint, l) + "/" + s)
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
p := simplehttp.NewFormDataPayload()
if prototype.Address != "" {
p.AddValue("address", prototype.Address)
}
if prototype.Name != "" {
p.AddValue("name", prototype.Name)
}
if prototype.Vars != nil {
vs, err := json.Marshal(prototype.Vars)
if err != nil {
return Member{}, err
}
p.AddValue("vars", string(vs))
}
if prototype.Subscribed != nil {
p.AddValue("subscribed", yesNo(*prototype.Subscribed))
}
response, err := makePutRequest(r, p)
if err != nil {
return Member{}, err
}
var envelope struct {
Member Member `json:"member"`
}
err = response.ParseFromJSON(&envelope)
return envelope.Member, err
}
// DeleteMember removes the member from the list.
func (mg *MailgunImpl) DeleteMember(member, addr string) error {
r := simplehttp.NewHTTPRequest(generateMemberApiUrl(listsEndpoint, addr) + "/" + member)
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
_, err := makeDeleteRequest(r)
return err
}
// CreateMemberList registers multiple Members and non-Member members to a single mailing list
// in a single round-trip.
// s indicates the default subscribed status (Subscribed or Unsubscribed).
// Use All to elect not to provide a default.
// The newMembers list can take one of two JSON-encodable forms: an slice of strings, or
// a slice of Member structures.
// If a simple slice of strings is passed, each string refers to the member's e-mail address.
// Otherwise, each Member needs to have at least the Address field filled out.
// Other fields are optional, but may be set according to your needs.
func (mg *MailgunImpl) CreateMemberList(s *bool, addr string, newMembers []interface{}) error {
r := simplehttp.NewHTTPRequest(generateMemberApiUrl(listsEndpoint, addr) + ".json")
r.SetBasicAuth(basicAuthUser, mg.ApiKey())
p := simplehttp.NewFormDataPayload()
if s != nil {
p.AddValue("subscribed", yesNo(*s))
}
bs, err := json.Marshal(newMembers)
if err != nil {
return err
}
fmt.Println(string(bs))
p.AddValue("members", string(bs))
_, err = makePostRequest(r, p)
return err
}