initial POC
This commit is contained in:
62
internal/app/app.go
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62
internal/app/app.go
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@@ -0,0 +1,62 @@
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package app
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import (
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"fmt"
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"log"
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"text/template"
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"git.asperti.com/paspo/mail-autoconfig/internal/config"
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"git.asperti.com/paspo/mail-autoconfig/internal/db"
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"github.com/gin-gonic/gin"
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)
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var Domains map[string]Domain
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var Router *gin.Engine
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func init() {
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var err error
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Domains = make(map[string]Domain)
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thunderbirdTemplate, err = template.New("thunderbird").Parse(thunderbirdTpl)
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if err != nil {
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log.Fatal(err) // TODO
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}
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outlookTemplate, err = template.New("outlook").Parse(outlookTpl)
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if err != nil {
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log.Fatal(err) // TODO
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}
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Router = gin.Default()
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Router.GET("/.well-known/autoconfig/mail/config-v1.1.xml", RenderThunderbird)
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Router.GET("/mail/config-v1.1.xml", RenderThunderbird)
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Router.POST("/autodiscover/autodiscover.xml", RenderOutlook)
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}
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func FetchAllDomains() error {
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var err error
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rows, err := db.DB.Queryx("select * from domains")
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if err != nil {
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return err
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}
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defer rows.Close()
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for rows.Next() {
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var d Domain
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err := rows.StructScan(&d)
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if err != nil {
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return err
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}
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Domains[d.Domain] = d
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}
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err = rows.Err()
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if err != nil {
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return err
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}
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return nil
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}
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func Start() {
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address := fmt.Sprintf(":%d", config.AppConfig.HttpPort)
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Router.Run(address)
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}
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26
internal/app/domain.go
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26
internal/app/domain.go
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@@ -0,0 +1,26 @@
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package app
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type Domain struct {
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Domain string `db:"domain"`
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DisplayName string `db:"display_name"`
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DisplayShortName string `db:"display_shortname"`
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IMAPEnabled bool `db:"imap_enabled"`
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IMAPServer string `db:"imap_server"`
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IMAPPort int `db:"imap_port"`
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IMAPSSL bool `db:"imap_ssl"`
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IMAPSPA bool `db:"imap_spa"`
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POP3Enabled bool `db:"pop3_enabled"`
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POP3Server string `db:"pop3_server"`
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POP3Port int `db:"pop3_port"`
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POP3SSL bool `db:"pop3_ssl"`
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POP3SPA bool `db:"pop3_spa"`
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SMTPEnabled bool `db:"smtp_enabled"`
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SMTPServer string `db:"smtp_server"`
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SMTPPort int `db:"smtp_port"`
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SMTPSSL bool `db:"smtp_ssl"`
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SMTPTLS bool `db:"smtp_tls"`
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SMTPSPA bool `db:"smtp_spa"`
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POPBeforeSMTP bool `db:"pop_before_smtp"`
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DomainRequired bool `db:"domain_required"`
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Username string
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}
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135
internal/app/outlook.go
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135
internal/app/outlook.go
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@@ -0,0 +1,135 @@
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package app
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import (
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"bytes"
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"encoding/xml"
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"io"
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"log"
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"net/http"
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"strings"
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"text/template"
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"github.com/gin-gonic/gin"
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)
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const outlookTpl = `
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<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
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<Response xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a">
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<Account>
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<AccountType>email</AccountType>
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<Action>settings</Action>
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{{- if .IMAPEnabled }}
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<Protocol>
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<Type>IMAP</Type>
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<Server>{{ .IMAPServer }}</Server>
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<Port>{{ .IMAPPort }}</Port>
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<DomainRequired>on</DomainRequired>
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<SPA>off</SPA>
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<SSL>{{ if .IMAPSSL }}on{{ else }}off{{ end }}</SSL>
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<AuthRequired>on</AuthRequired>
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<LoginName>{{ .Username }}@{{ .Domain }}</LoginName>
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</Protocol>
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{{- end }}
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{{- if .POP3Enabled }}
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<Protocol>
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<Type>POP3</Type>
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<Server>mail.mdfmultimedia.com</Server>
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<Port>995</Port>
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<DomainRequired>on</DomainRequired>
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<SPA>off</SPA>
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<SSL>{{ if .POP3SSL }}on{{ else }}off{{ end }}</SSL>
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<AuthRequired>on</AuthRequired>
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<LoginName>{{ .Username }}@{{ .Domain }}</LoginName>
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</Protocol>
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{{- end }}
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{{- if .SMTPEnabled }}
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<Protocol>
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<Type>SMTP</Type>
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<Server>mail.mdfmultimedia.com</Server>
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<Port>465</Port>
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<DomainRequired>on</DomainRequired>
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<SPA>off</SPA>
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<SSL>{{ if .SMTPSSL }}on{{ else }}off{{ end }}</SSL>
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<AuthRequired>on</AuthRequired>
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<LoginName>{{ .Username }}@{{ .Domain }}</LoginName>
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</Protocol>
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{{- end }}
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</Account>
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</Response>
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</Autodiscover>
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`
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var outlookTemplate *template.Template
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func RenderOutlook(g *gin.Context) {
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var err error
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var body []byte
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var domain Domain
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var ok bool
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var b bytes.Buffer
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body, err = io.ReadAll(g.Request.Body)
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if err != nil {
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g.JSON(404, gin.H{"code": "WRONG_BODY", "message": "malformed request"})
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return
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}
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var e struct {
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Address string `xml:"Request>EMailAddress"`
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}
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err = xml.Unmarshal(body, &e)
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if err != nil {
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g.JSON(404, gin.H{"code": "PAGE_NOT_FOUND", "message": "Page not found"})
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return
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}
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components := strings.Split(e.Address, "@")
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username, reqDomain := components[0], components[1]
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domain, ok = Domains[reqDomain]
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if !ok {
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g.JSON(404, gin.H{"code": "PAGE_NOT_FOUND", "message": "Page not found"})
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return
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}
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domain.Username = username
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err = outlookTemplate.Execute(&b, domain)
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if err != nil {
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log.Fatal(err)
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}
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g.Header("Content-Type", "application/xml; charset=utf-8")
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g.String(http.StatusOK, b.String())
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}
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// curl -X POST -d @req.xml http://127.0.0.1:8888/autodiscover/autodiscover.xml
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// curl --basic -X "POST" -u XXX@YYY -v https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml -H "Content-Type: text/xml" -d @a.txt
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/*
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<?xml version="1.0" encoding="utf-8"?>
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<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/mobilesync/requestschema/2006">
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<Request>
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<EMailAddress>testuser@company.tld</EMailAddress>
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<AcceptableResponseSchema>
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http://schemas.microsoft.com/exchange/autodiscover/mobilesync/responseschema/2006
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</AcceptableResponseSchema>
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</Request>
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</Autodiscover>
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$ curl -d @request.xml -u testuser@company.tld -H "Content-Type: text/xml" -v https://autodiscover.company.tld/autodiscover/autodiscover.xml
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*/
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/*
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1 - Lookup di un record A (o CNAME) per contoso.com che punta ad un web server che risponderà con un URL HTTPS https://contoso.com/Autodiscover/Autodiscover.xml.
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2 - Lookup di un record A (o CNAME) per autodiscover.contoso.com che punta ad un web server che risponderà con un URL HTTPS https://autodiscover.contoso.com/Autodiscover/Autodiscover.xml
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3 - Lookup di un record A (o CNAME) per contoso.com che punta ad un web server che risponderà con URL HTTP http://autodiscover.contoso.com/Autodiscover/Autodiscover.xml (se avete un reverse proxy o direttamente su Exchange, dovrete fare la configurazione necessaria per implementare l’http to https redirect)
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4 - Lookup di un record SRV per autodiscover._tcp.contoso.com (Questo record deve contenere la porta 443 e l’hostname, ad esempio mail.contoso.com, permetendo cosi al client di fare una request in https all’URL https://mail.contoso.com/Autodiscover/Autodiscover.xml)
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*/
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90
internal/app/thunderbird.go
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90
internal/app/thunderbird.go
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@@ -0,0 +1,90 @@
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package app
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import (
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"bytes"
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"log"
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"net/http"
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"text/template"
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"github.com/gin-gonic/gin"
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)
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const thunderbirdTpl = `
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<clientConfig version="1.1">
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<emailProvider id="{{ .Domain }}">
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<domain>{{ .Domain }}</domain>
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<displayName>{{ .DisplayName }}</displayName>
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<displayShortName>{{ .DisplayShortName }}</displayShortName>
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{{- if .IMAPEnabled }}
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<incomingServer type="imap">
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<hostname>{{ .IMAPServer }}</hostname>
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<port>{{ .IMAPPort }}</port>
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{{- if .IMAPSSL }}
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<socketType>SSL</socketType>
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{{- else }}
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<socketType>plain</socketType>
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{{- end }}
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<authentication>password-encrypted</authentication>
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<username>%EMAILADDRESS%</username>
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</incomingServer>
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{{- end }}
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{{- if .POP3Enabled }}
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<incomingServer type="pop3">
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<hostname>{{ .POP3Server }}</hostname>
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<port>{{ .POP3Port }}</port>
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{{- if .POP3SSL }}
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<socketType>SSL</socketType>
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{{- else }}
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<socketType>plain</socketType>
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{{- end }}
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<authentication>password-cleartext</authentication>
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<username>%EMAILADDRESS%</username>
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</incomingServer>
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{{- end }}
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{{- if .SMTPEnabled }}
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<outgoingServer type="smtp">
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<hostname>{{ .SMTPServer }}</hostname>
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<port>{{ .SMTPPort }}</port>
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{{- if .SMTPSSL }}
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<socketType>SSL</socketType>
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{{- else }}
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{{if .SMTPTLS }}
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<socketType>STARTTLS</socketType>
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{{- else }}
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<socketType>plain</socketType>
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{{- end }}
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{{- end }}
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<authentication>password-encrypted</authentication>
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<username>%EMAILADDRESS%</username>
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</outgoingServer>
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{{- end }}
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</emailProvider>
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</clientConfig>
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`
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var thunderbirdTemplate *template.Template
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// https://wiki.mozilla.org/Thunderbird:Autoconfiguration:ConfigFileFormat
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func RenderThunderbird(g *gin.Context) {
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host := g.Request.Host
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domain, ok := Domains[host]
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if !ok {
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g.JSON(404, gin.H{"code": "PAGE_NOT_FOUND", "message": "Page not found"})
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return
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}
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var b bytes.Buffer
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if err := thunderbirdTemplate.Execute(&b, domain); err != nil {
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log.Fatal(err)
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}
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g.Header("Content-Type", "application/xml; charset=utf-8")
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g.String(http.StatusOK, b.String())
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}
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// curl http://127.0.0.1:8888/.well-known/autoconfig/mail/config-v1.1.xml
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