mirror of
https://github.com/vector-im/element-android
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617 lines
15 KiB
Markdown
617 lines
15 KiB
Markdown
# Sign up to a homeserver
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This document describes the flow of registration to a homeserver. Examples come from the `matrix.org` homeserver.
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*Ref*: https://matrix.org/docs/spec/client_server/latest#account-registration-and-management
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<!--- TOC -->
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* [Sign up flows](#sign-up-flows)
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* [First step](#first-step)
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* [Step 1: entering user name and password](#step-1:-entering-user-name-and-password)
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* [If username already exists](#if-username-already-exists)
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* [Step 2: entering email](#step-2:-entering-email)
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* [Step 2 bis: user enters an email](#step-2-bis:-user-enters-an-email)
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* [Step 3: Accepting T&C](#step-3:-accepting-t&c)
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* [Step 4: Captcha](#step-4:-captcha)
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* [Step 5: MSISDN](#step-5:-msisdn)
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<!--- END -->
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## Sign up flows
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### First step
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Client request the sign-up flows, once the homeserver is chosen by the user and its url is known (in the example it's `https://matrix.org`)
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```shell script
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curl -X POST --data $'{}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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{
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}
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```
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We get the flows with a 401, which also means that the registration is possible on this homeserver.
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```json
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{
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"session": "vwehdKMtkRedactedAMwgCACZ",
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"flows": [
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.dummy"
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]
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},
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.email.identity"
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]
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}
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],
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"params": {
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"m.login.recaptcha": {
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"public_key": "6LcgI54UAAAAAoREDACTEDoDdOocFpYVdjYBRe4zb"
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},
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"m.login.terms": {
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"policies": {
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"privacy_policy": {
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"version": "1.0",
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"en": {
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"name": "Terms and Conditions",
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"url": "https:\/\/matrix.org\/_matrix\/consent?v=1.0"
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}
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}
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}
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}
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}
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}
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```
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If the registration is not possible, we get a 403
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```json
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{
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"errcode": "M_FORBIDDEN",
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"error": "Registration is disabled"
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}
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```
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### Step 1: entering user name and password
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The app is displaying a form to enter username and password.
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```shell script
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curl -X POST --data $'{"initial_device_display_name":"Mobile device","username":"alice","password": "weak_password"}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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{
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"initial_device_display_name": "Mobile device",
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"username": "alice",
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"password": "weak_password"
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}
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```
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401. Note that the `session` value has changed (because we did not provide the previous value in the request body), but it's ok, we will use the new value for the next steps.
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```json
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{
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"flows": [
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.dummy"
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]
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},
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.email.identity"
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]
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}
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],
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"params": {
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"m.login.recaptcha": {
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"public_key": "6LcgI54UAAAAAoREDACTEDoDdOocFpYVdjYBRe4zb"
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},
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"m.login.terms": {
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"policies": {
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"privacy_policy": {
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"version": "1.0",
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"en": {
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"name": "Terms and Conditions",
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"url": "https:\/\/matrix.org\/_matrix\/consent?v=1.0"
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}
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}
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}
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}
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}
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}
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```
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#### If username already exists
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We get a 400:
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```json
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{
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"errcode": "M_USER_IN_USE",
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"error": "User ID already taken."
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}
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```
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### Step 2: entering email
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User is proposed to enter an email. User skips this step.
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```shell script
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curl -X POST --data $'{"auth":{"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.dummy"}}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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{
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"auth": {
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"type": "m.login.dummy"
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}
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}
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```
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401
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```json
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{
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"flows": [
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.dummy"
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]
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},
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.email.identity"
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]
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}
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],
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"params": {
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"m.login.recaptcha": {
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"public_key": "6LcgI54UAAAAAoREDACTEDoDdOocFpYVdjYBRe4zb"
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},
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"m.login.terms": {
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"policies": {
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"privacy_policy": {
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"version": "1.0",
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"en": {
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"name": "Terms and Conditions",
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"url": "https:\/\/matrix.org\/_matrix\/consent?v=1.0"
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}
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}
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}
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}
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},
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"completed": [
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"m.login.dummy"
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]
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}
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```
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### Step 2 bis: user enters an email
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We request a token to the homeserver. The `client_secret` is generated by the application
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```shell script
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curl -X POST --data $'{"client_secret":"53e679ea-oRED-ACTED-92b8-3012c49c6cfa","email":"alice@email-provider.org","send_attempt":0}' 'https://matrix.org/_matrix/client/r0/register/email/requestToken'
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```
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```json
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{
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"client_secret": "53e679ea-oRED-ACTED-92b8-3012c49c6cfa",
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"email": "alice@email-provider.org",
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"send_attempt": 0
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}
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```
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200
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```json
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{
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"sid": "qlBCREDACTEDEtgxD"
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}
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```
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And
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```shell script
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curl -X POST --data $'{"auth":{"threepid_creds":{"client_secret":"53e679ea-oRED-ACTED-92b8-3012c49c6cfa","sid":"qlBCREDACTEDEtgxD"},"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.email.identity"}}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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{
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"auth": {
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"threepid_creds": {
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"client_secret": "53e679ea-oRED-ACTED-92b8-3012c49c6cfa",
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"sid": "qlBCREDACTEDEtgxD"
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},
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"type": "m.login.email.identity"
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}
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}
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```
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We get 401 since the email is not validated yet:
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```json
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{
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"errcode": "M_UNAUTHORIZED",
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"error": ""
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}
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```
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The app is now polling on
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```shell script
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curl -X POST --data $'{"auth":{"threepid_creds":{"client_secret":"53e679ea-oRED-ACTED-92b8-3012c49c6cfa","sid":"qlBCREDACTEDEtgxD"},"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.email.identity"}}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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{
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"auth": {
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"threepid_creds": {
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"client_secret": "53e679ea-oRED-ACTED-92b8-3012c49c6cfa",
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"sid": "qlBCREDACTEDEtgxD"
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},
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"type": "m.login.email.identity"
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}
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}
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```
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User clicks on the link received by email `https://matrix.org/_matrix/client/unstable/registration/email/submit_token?token=vtQjQIZfwdoREDACTEDozrmKYSWlCXsJ&client_secret=53e679ea-oRED-ACTED-92b8-3012c49c6cfa&sid=qlBCREDACTEDEtgxD` which contains:
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- A `token` vtQjQIZfwdoREDACTEDozrmKYSWlCXsJ
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- The `client_secret`: 53e679ea-oRED-ACTED-92b8-3012c49c6cfa
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- A `sid`: qlBCREDACTEDEtgxD
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Once the link is clicked, the registration request (polling) returns a 401 with the following content:
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```json
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{
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"flows": [
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.dummy"
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]
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},
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.email.identity"
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]
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}
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],
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"params": {
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"m.login.recaptcha": {
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"public_key": "6LcgI54UAAAAAoREDACTEDoDdOocFpYVdjYBRe4zb"
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},
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"m.login.terms": {
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"policies": {
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"privacy_policy": {
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"version": "1.0",
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"en": {
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"name": "Terms and Conditions",
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"url": "https:\/\/matrix.org\/_matrix\/consent?v=1.0"
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}
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}
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}
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}
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},
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"completed": [
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"m.login.email.identity"
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]
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}
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```
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### Step 3: Accepting T&C
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User is proposed to accept T&C and he accepts them
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```shell script
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curl -X POST --data $'{"auth":{"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.terms"}}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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{
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"auth": {
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"type": "m.login.terms"
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}
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}
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```
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401
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```json
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{
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"flows": [
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.dummy"
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]
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},
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{
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"stages": [
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"m.login.recaptcha",
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"m.login.terms",
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"m.login.email.identity"
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]
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}
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],
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"params": {
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"m.login.recaptcha": {
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"public_key": "6LcgI54UAAAAAoREDACTEDoDdOocFpYVdjYBRe4zb"
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},
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"m.login.terms": {
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"policies": {
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"privacy_policy": {
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"version": "1.0",
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"en": {
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"name": "Terms and Conditions",
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"url": "https:\/\/matrix.org\/_matrix\/consent?v=1.0"
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}
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}
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}
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}
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},
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"completed": [
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"m.login.dummy",
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"m.login.terms"
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]
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}
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```
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### Step 4: Captcha
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User is proposed to prove he is not a robot and he does it:
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```shell script
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curl -X POST --data $'{"auth":{"response":"03AOLTBLSiGS9GhFDpAMblJ2nlXOmHXqAYJ5OvHCPUjiVLBef3k9snOYI_BDC32-t4D2jv-tpvkaiEI_uloobFd9RUTPpJ7con2hMddbKjSCYqXqcUQFhzhbcX6kw8uBnh2sbwBe80_ihrHGXEoACXQkL0ki1Q0uEtOeW20YBRjbNABsZPpLNZhGIWC0QVXnQ4FouAtZrl3gOAiyM-oG3cgP6M9pcANIAC_7T2P2amAHbtsTlSR9CsazNyS-rtDR9b5MywdtnWN9Aw8fTJb8cXQk_j7nvugMxzofPjSOrPKcr8h5OqPlpUCyxxnFtag6cuaPSUwh43D2L0E-ZX7djzaY2Yh_U2n6HegFNPOQ22CJmfrKwDlodmAfMPvAXyq77n3HpoREDACTEDo3830RHF4BfkGXUaZjctgg-A1mvC17hmQmQpkG7IhDqyw0onU-0vF_-ehCjq_CcQEDpS_O3uiHJaG5xGf-0rhLm57v_wA3deugbsZuO4uTuxZZycN_mKxZ97jlDVBetl9hc_5REPbhcT1w3uzTCSx7Q","session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.recaptcha"}}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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{
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"auth": {
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"response": "03AOLTBLSiGS9GhFDpAMblJ2nlXOmHXqAYJ5OvHCPUjiVLBef3k9snOYI_BDC32-t4D2jv-tpvkaiEI_uloobFd9RUTPpJ7con2hMddbKjSCYqXqcUQFhzhbcX6kw8uBnh2sbwBe80_ihrHGXEoACXQkL0ki1Q0uEtOeW20YBRjbNABsZPpLNZhGIWC0QVXnQ4FouAtZrl3gOAiyM-oG3cgP6M9pcANIAC_7T2P2amAHbtsTlSR9CsazNyS-rtDR9b5MywdtnWN9Aw8fTJb8cXQk_j7nvugMxzofPjSOrPKcr8h5OqPlpUCyxxnFtag6cuaPSUwh43D2L0E-ZX7djzaY2Yh_U2n6HegFNPOQ22CJmfrKwDlodmAfMPvAXyq77n3HpoREDACTEDo3830RHF4BfkGXUaZjctgg-A1mvC17hmQmQpkG7IhDqyw0onU-0vF_-ehCjq_CcQEDpS_O3uiHJaG5xGf-0rhLm57v_wA3deugbsZuO4uTuxZZycN_mKxZ97jlDVBetl9hc_5REPbhcT1w3uzTCSx7Q",
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"type": "m.login.recaptcha"
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}
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}
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```
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200
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```json
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{
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"user_id": "@alice:matrix.org",
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"home_server": "matrix.org",
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"access_token": "MDAxOGxvY2F0aW9uIG1hdHJpeC5vcmcKMoREDACTEDo50aWZpZXIga2V5CjAwMTBjaWQgZ2VuID0gMQowMDI5Y2lkIHVzZXJfaWQgPSBAYmVub2l0eHh4eDptYXRoREDACTEDoCjAwMTZjaWQgdHlwZSA9IGFjY2VzcwowMDIxY2lkIG5vbmNlID0gNHVSVm00aVFDaWlKdoREDACTEDoJmc2lnbmF0dXJlIOmHnTLRfxiPjhrWhS-dThUX-qAzZktfRThzH1YyAsxaCg",
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"device_id": "FLBAREDAJZ"
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}
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```
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The account is created!
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### Step 5: MSISDN
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Some homeservers may require the user to enter MSISDN.
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On matrix.org, it's not required, and not even optional, but it's still possible for the app to add a MSISDN during the registration.
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The user enters a phone number and selects a country, the `client_secret` is generated by the application
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```shell script
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curl -X POST --data $'{"client_secret":"d3e285f6-972a-496c-9a22-7915a2db57c7","send_attempt":1,"country":"FR","phone_number":"+33611223344"}' 'https://matrix.org/_matrix/client/r0/register/msisdn/requestToken'
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```
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```json
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{
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"client_secret": "d3e285f6-972a-496c-9a22-7915a2db57c7",
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"send_attempt": 1,
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"country": "FR",
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"phone_number": "+33611223344"
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}
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```
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If the msisdn is already associated to another account, you will received an error:
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```json
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{
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"errcode": "M_THREEPID_IN_USE",
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"error": "Phone number is already in use"
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}
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```
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If it is not the case, the homeserver send the SMS and returns some data, especially a `sid` and a `submit_url`:
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```json
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{
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"msisdn": "33611223344",
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"intl_fmt": "+336 11 22 33 44",
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"success": true,
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"sid": "1678881798",
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"submit_url": "https:\/\/matrix.org\/_matrix\/client\/unstable\/add_threepid\/msisdn\/submit_token"
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}
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```
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When we execute the register request, with the received `sid`, we get an error since the MSISDN is not validated yet:
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```shell script
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curl -X POST --data $'{"auth":{"type":"m.login.msisdn","session":"xptUYoREDACTEDogOWAGVnbJQ","threepid_creds":{"client_secret":"d3e285f6-972a-496c-9a22-7915a2db57c7","sid":"1678881798"}}}' 'https://matrix.org/_matrix/client/r0/register'
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```
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```json
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"auth": {
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"type": "m.login.msisdn",
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"session": "xptUYoREDACTEDogOWAGVnbJQ",
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"threepid_creds": {
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"client_secret": "d3e285f6-972a-496c-9a22-7915a2db57c7",
|
|
"sid": "1678881798"
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
There is an issue on Synapse, which return a 401, it sends too much data along with the classical MatrixError fields:
|
|
|
|
```json
|
|
{
|
|
"session": "xptUYoREDACTEDogOWAGVnbJQ",
|
|
"flows": [
|
|
{
|
|
"stages": [
|
|
"m.login.recaptcha",
|
|
"m.login.terms",
|
|
"m.login.dummy"
|
|
]
|
|
},
|
|
{
|
|
"stages": [
|
|
"m.login.recaptcha",
|
|
"m.login.terms",
|
|
"m.login.email.identity"
|
|
]
|
|
}
|
|
],
|
|
"params": {
|
|
"m.login.recaptcha": {
|
|
"public_key": "6LcgI54UAAAAABGdGmruw6DdOocFpYVdjYBRe4zb"
|
|
},
|
|
"m.login.terms": {
|
|
"policies": {
|
|
"privacy_policy": {
|
|
"version": "1.0",
|
|
"en": {
|
|
"name": "Terms and Conditions",
|
|
"url": "https:\/\/matrix.org\/_matrix\/consent?v=1.0"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
"completed": [],
|
|
"error": "",
|
|
"errcode": "M_UNAUTHORIZED"
|
|
}
|
|
```
|
|
|
|
The user receive the SMS, he can enter the SMS code in the app, which is sent using the "submit_url" received ie the response of the `requestToken` request:
|
|
|
|
```shell script
|
|
curl -X POST --data $'{"client_secret":"d3e285f6-972a-496c-9a22-7915a2db57c7","sid":"1678881798","token":"123456"}' 'https://matrix.org/_matrix/client/unstable/add_threepid/msisdn/submit_token'
|
|
```
|
|
|
|
```json
|
|
{
|
|
"client_secret": "d3e285f6-972a-496c-9a22-7915a2db57c7",
|
|
"sid": "1678881798",
|
|
"token": "123456"
|
|
}
|
|
```
|
|
|
|
If the code is not correct, we get a 200 with:
|
|
|
|
```json
|
|
{
|
|
"success": false
|
|
}
|
|
```
|
|
|
|
And if the code is correct we get a 200 with:
|
|
|
|
```json
|
|
{
|
|
"success": true
|
|
}
|
|
```
|
|
|
|
We can now execute the registration request, to the homeserver
|
|
|
|
```shell script
|
|
curl -X POST --data $'{"auth":{"type":"m.login.msisdn","session":"xptUYoREDACTEDogOWAGVnbJQ","threepid_creds":{"client_secret":"d3e285f6-972a-496c-9a22-7915a2db57c7","sid":"1678881798"}}}' 'https://matrix.org/_matrix/client/r0/register'
|
|
```
|
|
|
|
```json
|
|
{
|
|
"auth": {
|
|
"type": "m.login.msisdn",
|
|
"session": "xptUYoREDACTEDogOWAGVnbJQ",
|
|
"threepid_creds": {
|
|
"client_secret": "d3e285f6-972a-496c-9a22-7915a2db57c7",
|
|
"sid": "1678881798"
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
Now the homeserver considers that the `m.login.msisdn` step is completed (401):
|
|
|
|
```json
|
|
{
|
|
"session": "xptUYoREDACTEDogOWAGVnbJQ",
|
|
"flows": [
|
|
{
|
|
"stages": [
|
|
"m.login.recaptcha",
|
|
"m.login.terms",
|
|
"m.login.dummy"
|
|
]
|
|
},
|
|
{
|
|
"stages": [
|
|
"m.login.recaptcha",
|
|
"m.login.terms",
|
|
"m.login.email.identity"
|
|
]
|
|
}
|
|
],
|
|
"params": {
|
|
"m.login.recaptcha": {
|
|
"public_key": "6LcgI54UAAAAABGdGmruw6DdOocFpYVdjYBRe4zb"
|
|
},
|
|
"m.login.terms": {
|
|
"policies": {
|
|
"privacy_policy": {
|
|
"version": "1.0",
|
|
"en": {
|
|
"name": "Terms and Conditions",
|
|
"url": "https:\/\/matrix.org\/_matrix\/consent?v=1.0"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
"completed": [
|
|
"m.login.msisdn"
|
|
]
|
|
}
|
|
```
|