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Add documentation on the sign up flow
This commit is contained in:
Benoit Marty
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docs/signup.md
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docs/signup.md
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# 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, and the logs come from Riot-Android.
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Note that it contains bugs:
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- "password" and "initial_device_display_name" values are sent a bit too much
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- the first received "sessionId" is not reused
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- The order of stages returned by the homeserver is not strictly followed
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Ref: https://matrix.org/docs/spec/client_server/latest#account-registration-and-management
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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 knwon (in the example it's https://matrix.org)
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> curl -X POST --data $'{"initial_device_display_name":"Mobile device","x_show_msisdn":true}' 'https://matrix.org/_matrix/client/r0/register'
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```json
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{
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"initial_device_display_name": "Mobile device",
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"x_show_msisdn": true
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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": "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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### Step 1: entering user name and password
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The app is displaying a form with login and password. Only the login is sent for the first request
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> curl -X POST --data $'{"initial_device_display_name":"Mobile device","username":"alice"}' 'https://matrix.org/_matrix/client/r0/register'
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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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}
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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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}
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```
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#### If username already exists
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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. We skip this step.
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> curl -X POST --data $'{"auth":{"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.dummy"},"initial_device_display_name":"Mobile device","password":"azerty","username":"alice"}' 'https://matrix.org/_matrix/client/r0/register'
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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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"initial_device_display_name": "Mobile device",
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"password": "password_REDACTED",
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"username":"alice"
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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: we enter an email
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> curl -X POST --data $'{"client_secret":"53e679ea-oRED-ACTED-92b8-3012c49c6cfa","email":"alice@yopmail.com","send_attempt":0}' 'https://matrix.org/_matrix/client/r0/register/email/requestToken'
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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@yopmail.com",
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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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> curl -X POST --data $'{"auth":{"threepid_creds":{"client_secret":"53e679ea-oRED-ACTED-92b8-3012c49c6cfa","sid":"qlBCREDACTEDEtgxD"},"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.email.identity"},"initial_device_display_name":"Mobile device","password":"password_REDACTED","username":"alice"}' 'https://matrix.org/_matrix/client/r0/register'
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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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"initial_device_display_name": "Mobile device",
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"password": "password_REDACTED",
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"username": "alice"
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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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"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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> curl -X POST --data $'{"auth":{"threepid_creds":{"client_secret":"53e679ea-oRED-ACTED-92b8-3012c49c6cfa","sid":"qlBCREDACTEDEtgxD"},"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.email.identity"},"initial_device_display_name":"Mobile device","password":"password_REDACTED","username":"alice"}' 'https://matrix.org/_matrix/client/r0/register'
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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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"initial_device_display_name": "Mobile device",
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"password": "password_REDACTED",
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"username": "alice"
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}
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```
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We click 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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- a 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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> curl -X POST --data $'{"auth":{"session":"xptUYoREDACTEDogOWAGVnbJQ","type":"m.login.terms"},"initial_device_display_name":"Mobile device"}' 'https://matrix.org/_matrix/client/r0/register'
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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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"initial_device_display_name": "Mobile device"
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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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> 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":"iLHmdwNlXZoREDACTEDoouwMi","type":"m.login.recaptcha"},"initial_device_display_name":"Mobile device"}' 'https://matrix.org/_matrix/client/r0/register'
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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": "iLHmdwNlXZoREDACTEDoouwMi",
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"type": "m.login.recaptcha"
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},
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"initial_device_display_name": "Mobile device"
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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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