Extracted EWS code into separate file
This commit is contained in:
parent
e8cf553e9a
commit
5d62c932d5
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@ -1,155 +1,11 @@
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package main
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import (
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"bytes"
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"encoding/xml"
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"fmt"
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"io"
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"log"
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"net/http"
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"net/http/cookiejar"
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"strings"
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"text/template"
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"time"
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)
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type FolderId struct {
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Id string `xml:",attr"`
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ChangeKey string `xml:",attr"`
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}
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type CalendarItem struct {
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Subject string
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UID string
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Start time.Time
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End time.Time
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}
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type EWSCalendar struct {
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httpClient *http.Client
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url string
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username string
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password string
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}
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func NewEWSCalendar(url, username, password string) *EWSCalendar {
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// Prepare a cookie jar, since EWS uses some.
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jar, err := cookiejar.New(nil)
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if err != nil {
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panic(err)
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}
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return &EWSCalendar{
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httpClient: &http.Client{
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Jar: jar,
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},
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url: url,
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username: username,
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password: password,
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}
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}
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func (e *EWSCalendar) prepareRequest(body io.Reader) (req *http.Request, err error) {
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req, err = http.NewRequest(http.MethodPost, e.url, body)
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req.Header.Set("Content-Type", "text/xml")
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req.Header.Set("Accept", "text/xml")
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req.SetBasicAuth(e.username, e.password)
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return
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}
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func (e *EWSCalendar) getCalendarFolderID() (id *FolderId, err error) {
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req, err := e.prepareRequest(strings.NewReader(folderIdRequest))
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if err != nil {
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return
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}
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resp, err := e.httpClient.Do(req)
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if err != nil {
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return
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}
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if resp.StatusCode != http.StatusOK {
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err = fmt.Errorf("unexpected status when querying folderID: %d", resp.StatusCode)
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return
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}
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d := xml.NewDecoder(resp.Body)
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defer resp.Body.Close()
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for {
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var t xml.Token
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t, err = d.Token()
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if err == io.EOF {
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err = nil
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return
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} else if err != nil {
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return
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}
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switch t := t.(type) {
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case xml.StartElement:
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if t.Name.Local == "FolderId" {
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id = &FolderId{}
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err = d.DecodeElement(id, &t)
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// The first one is enough
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return
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}
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}
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}
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}
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func (e *EWSCalendar) getCalendarItems(folder *FolderId, start, end time.Time) (items []CalendarItem, err error) {
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b := &bytes.Buffer{}
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model := struct {
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FolderId *FolderId
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StartDate string
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EndDate string
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}{folder, start.Format(time.RFC3339), end.Format(time.RFC3339)}
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err = calendarQuery.Execute(b, &model)
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if err != nil {
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return
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}
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req, err := e.prepareRequest(b)
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if err != nil {
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return
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}
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resp, err := e.httpClient.Do(req)
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if err != nil {
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return
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}
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if resp.StatusCode != http.StatusOK {
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err = fmt.Errorf("unexpected status when querying calendar items: %d", resp.StatusCode)
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return
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}
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d := xml.NewDecoder(resp.Body)
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defer resp.Body.Close()
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for {
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var t xml.Token
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t, err = d.Token()
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if err == io.EOF {
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err = nil
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return
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} else if err != nil {
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return
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}
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switch t := t.(type) {
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case xml.StartElement:
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if t.Name.Local == "CalendarItem" {
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item := CalendarItem{}
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err = d.DecodeElement(&item, &t)
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items = append(items, item)
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}
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}
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}
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return
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}
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func main() {
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s := LoadSettings()
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@ -181,49 +37,3 @@ func main() {
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item.HRef, item.UID(), item.Summary(), item.Start(), item.End())
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}
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}
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const folderIdRequest = `<?xml version="1.0" encoding="utf-8"?>
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<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
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<soap:Header>
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<t:RequestServerVersion Version="Exchange2013_SP1" />
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</soap:Header>
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<soap:Body>
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<m:GetFolder>
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<m:FolderShape>
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<t:BaseShape>AllProperties</t:BaseShape>
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</m:FolderShape>
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<m:FolderIds>
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<t:DistinguishedFolderId Id="calendar" />
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</m:FolderIds>
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</m:GetFolder>
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</soap:Body>
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</soap:Envelope>`
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var calendarQuery = template.Must(template.New("calendarQuery").Parse(`<?xml version="1.0" encoding="utf-8"?>
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<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
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<soap:Header>
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<t:RequestServerVersion Version="Exchange2013_SP1" />
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</soap:Header>
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<soap:Body>
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<m:FindItem Traversal="Shallow">
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<m:ItemShape>
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<t:BaseShape>IdOnly</t:BaseShape>
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<t:AdditionalProperties>
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<t:FieldURI FieldURI="item:Subject" />
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<t:FieldURI FieldURI="item:Sensitivity" />
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<t:FieldURI FieldURI="calendar:Start" />
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<t:FieldURI FieldURI="calendar:End" />
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<t:FieldURI FieldURI="calendar:UID" />
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<t:FieldURI FieldURI="calendar:RecurrenceId" />
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<t:FieldURI FieldURI="calendar:IsCancelled" />
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<t:FieldURI FieldURI="calendar:CalendarItemType" />
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<t:FieldURI FieldURI="calendar:CalendarItemType" />
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</t:AdditionalProperties>
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</m:ItemShape>
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<m:CalendarView StartDate="{{ .StartDate }}" EndDate="{{ .EndDate }}" />
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<m:ParentFolderIds>
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<t:FolderId Id="{{ .FolderId.Id }}" ChangeKey="{{ .FolderId.ChangeKey }}" />
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</m:ParentFolderIds>
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</m:FindItem>
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</soap:Body>
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</soap:Envelope>`))
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@ -0,0 +1,196 @@
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package main
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import (
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"bytes"
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"encoding/xml"
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"fmt"
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"io"
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"net/http"
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"net/http/cookiejar"
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"strings"
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"text/template"
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"time"
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)
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type FolderId struct {
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Id string `xml:",attr"`
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ChangeKey string `xml:",attr"`
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}
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type CalendarItem struct {
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Subject string
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UID string
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Start time.Time
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End time.Time
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}
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type EWSCalendar struct {
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httpClient *http.Client
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url string
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username string
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password string
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}
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func NewEWSCalendar(url, username, password string) *EWSCalendar {
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// Prepare a cookie jar, since EWS uses some.
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jar, err := cookiejar.New(nil)
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if err != nil {
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panic(err)
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}
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return &EWSCalendar{
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httpClient: &http.Client{
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Jar: jar,
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},
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url: url,
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username: username,
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password: password,
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}
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}
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func (e *EWSCalendar) prepareRequest(body io.Reader) (req *http.Request, err error) {
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req, err = http.NewRequest(http.MethodPost, e.url, body)
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req.Header.Set("Content-Type", "text/xml")
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req.Header.Set("Accept", "text/xml")
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req.SetBasicAuth(e.username, e.password)
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return
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}
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func (e *EWSCalendar) getCalendarFolderID() (id *FolderId, err error) {
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req, err := e.prepareRequest(strings.NewReader(folderIdRequest))
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if err != nil {
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return
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}
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resp, err := e.httpClient.Do(req)
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if err != nil {
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return
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}
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if resp.StatusCode != http.StatusOK {
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err = fmt.Errorf("unexpected status when querying folderID: %d", resp.StatusCode)
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return
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}
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d := xml.NewDecoder(resp.Body)
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defer resp.Body.Close()
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for {
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var t xml.Token
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t, err = d.Token()
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if err == io.EOF {
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err = nil
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return
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} else if err != nil {
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return
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}
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switch t := t.(type) {
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case xml.StartElement:
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if t.Name.Local == "FolderId" {
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id = &FolderId{}
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err = d.DecodeElement(id, &t)
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// The first one is enough
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return
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}
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}
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}
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}
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func (e *EWSCalendar) getCalendarItems(folder *FolderId, start, end time.Time) (items []CalendarItem, err error) {
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b := &bytes.Buffer{}
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model := struct {
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FolderId *FolderId
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StartDate string
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EndDate string
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}{folder, start.Format(time.RFC3339), end.Format(time.RFC3339)}
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err = calendarQuery.Execute(b, &model)
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if err != nil {
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return
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}
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req, err := e.prepareRequest(b)
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if err != nil {
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return
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}
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resp, err := e.httpClient.Do(req)
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if err != nil {
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return
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}
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if resp.StatusCode != http.StatusOK {
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err = fmt.Errorf("unexpected status when querying calendar items: %d", resp.StatusCode)
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return
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}
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d := xml.NewDecoder(resp.Body)
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defer resp.Body.Close()
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for {
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var t xml.Token
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t, err = d.Token()
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if err == io.EOF {
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err = nil
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return
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} else if err != nil {
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return
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}
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switch t := t.(type) {
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case xml.StartElement:
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if t.Name.Local == "CalendarItem" {
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item := CalendarItem{}
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err = d.DecodeElement(&item, &t)
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items = append(items, item)
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}
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}
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}
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return
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}
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const folderIdRequest = `<?xml version="1.0" encoding="utf-8"?>
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<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
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<soap:Header>
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<t:RequestServerVersion Version="Exchange2013_SP1" />
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</soap:Header>
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<soap:Body>
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<m:GetFolder>
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<m:FolderShape>
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<t:BaseShape>AllProperties</t:BaseShape>
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</m:FolderShape>
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<m:FolderIds>
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<t:DistinguishedFolderId Id="calendar" />
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</m:FolderIds>
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</m:GetFolder>
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</soap:Body>
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</soap:Envelope>`
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var calendarQuery = template.Must(template.New("calendarQuery").Parse(`<?xml version="1.0" encoding="utf-8"?>
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<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
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<soap:Header>
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<t:RequestServerVersion Version="Exchange2013_SP1" />
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</soap:Header>
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<soap:Body>
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<m:FindItem Traversal="Shallow">
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<m:ItemShape>
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<t:BaseShape>IdOnly</t:BaseShape>
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<t:AdditionalProperties>
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<t:FieldURI FieldURI="item:Subject" />
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<t:FieldURI FieldURI="item:Sensitivity" />
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<t:FieldURI FieldURI="calendar:Start" />
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<t:FieldURI FieldURI="calendar:End" />
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<t:FieldURI FieldURI="calendar:UID" />
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<t:FieldURI FieldURI="calendar:RecurrenceId" />
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<t:FieldURI FieldURI="calendar:IsCancelled" />
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<t:FieldURI FieldURI="calendar:CalendarItemType" />
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<t:FieldURI FieldURI="calendar:CalendarItemType" />
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</t:AdditionalProperties>
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</m:ItemShape>
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<m:CalendarView StartDate="{{ .StartDate }}" EndDate="{{ .EndDate }}" />
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<m:ParentFolderIds>
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<t:FolderId Id="{{ .FolderId.Id }}" ChangeKey="{{ .FolderId.ChangeKey }}" />
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</m:ParentFolderIds>
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</m:FindItem>
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</soap:Body>
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</soap:Envelope>`))
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