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How iCloud works

Trying to understand the various api calls iCloud.com uses to get your data from apple servers. Hope someone can use this information to build better products/apps.

Thoughts

Some thoughts before you see all the api calls

  • All you need for any api call is a 9 digit dsid and a cookie called X-APPLE-WEBAUTH-TOKEN. The 9 digit dsid can be found in Keychain Access under iCloud or in the file ~/Library/Application Support/CloudDocs/account.1 or atleast in 100 other places in your mac.

  • All post calls pass the dsid and session id as query strings. If you use any free internet service or anyone with WireShark can easily hack your iCloud account. WTF!

iCloud.com website

Authenticate the client

POST call with the following https://setup.icloud.com/setup/ws/1/validate?clientBuildNumber=&clientId=

webapp build - 16BHotfix?? sample uid - 5DD?????-AC??-??ED-9???-FD685B??????

Reponse error of 421 indicates that the client is new. This would trigger an automated email upon successful login. If you successfully block this call to validate endpoint then no email would get triggered. How cool and stupid is that?

Sample email

Your Apple ID was used to sign in to iCloud via a web browser

NOTE to apple: POST should not have values as query strings!

Login process

POST to url https://setup.icloud.com/setup/ws/1/login?clientBuildNumber=&clientId= JSON {"apple_id":"","password":"","extended_login":false}

Sample response

{
  "pcsServiceIdentitiesIncluded": true,
  "dsInfo": {
    "lastName": "LastName",
    "iCDPEnabled": false,
    "dsid": "<9 digit id>",
    "ironcadeMigrated": true,
    "locale": "en-value_value",
    "isManagedAppleID": false,
    "gilligan-invited": "true",
    "appleIdAliases": [
      "FirstName.LastName@me.com",
      "FirstName.LastName@icloud.com"
    ],
    "isPaidDeveloper": false,
    "notificationId": "",
    "primaryEmailVerified": true,
    "aDsID": "<advertiser id>",
    "locked": false,
    "hasICloudQualifyingDevice": true,
    "primaryEmail": "FirstName.LastName@email.com",
    "gilligan-enabled": "true",
    "fullName": "FirstName LastName",
    "languageCode": "en-value",
    "appleId": "FirstName.LastName@email.com",
    "firstName": "FirstName",
    "iCloudAppleIdAlias": "FirstName.LastName@icloud.com",
    "notesMigrated": true,
    "appleIdAlias": "FirstName.LastName@me.com",
    "brMigrated": true,
    "statusCode": 2
  },
  "hasMinimumDeviceForPhotosWeb": true,
  "iCDPEnabled": false,
  "webservices": {
    "reminders": {
      "url": "https://p31-remindersws.icloud.com:443",
      "status": "active"
    },
    "calendar": {
      "url": "https://p31-calendarws.icloud.com:443",
      "status": "active"
    },
    "docws": {
      "pcsRequired": true,
      "url": "https://p31-docws.icloud.com:443",
      "status": "active"
    },
    "settings": {
      "url": "https://p31-settingsws.icloud.com:443",
      "status": "active"
    },
    "notes": {
      "url": "https://p05-notesws.icloud.com:443",
      "status": "active"
    },
    "mail": {
      "url": "https://p05-mailws.icloud.com:443",
      "status": "active"
    },
    "ubiquity": {
      "url": "https://p31-ubiquityws.icloud.com:443",
      "status": "active"
    },
    "streams": {
      "url": "https://p31-streams.icloud.com:443",
      "status": "active"
    },
    "keyvalue": {
      "url": "https://p31-keyvalueservice.icloud.com:443",
      "status": "active"
    },
    "ckdatabasews": {
      "pcsRequired": true,
      "url": "https://p31-ckdatabasews.icloud.com:443",
      "status": "active"
    },
    "photosupload": {
      "pcsRequired": true,
      "url": "https://p31-uploadphotosws.icloud.com:443",
      "status": "active"
    },
    "photos": {
      "pcsRequired": true,
      "uploadUrl": "https://p31-uploadphotosws.icloud.com:443",
      "url": "https://p31-photosws.icloud.com:443",
      "status": "active"
    },
    "archivews": {
      "url": "https://p31-archivews.icloud.com:443",
      "status": "active"
    },
    "push": {
      "url": "https://p31-pushws.icloud.com:443",
      "status": "active"
    },
    "drivews": {
      "pcsRequired": true,
      "url": "https://p31-drivews.icloud.com:443",
      "status": "active"
    },
    "iwmb": {
      "url": "https://p31-iwmb.icloud.com:443",
      "status": "active"
    },
    "cksharews": {
      "url": "https://p31-ckshare.icloud.com:443",
      "status": "active"
    },
    "iworkexportws": {
      "url": "https://p31-iworkexportws.icloud.com:443",
      "status": "active"
    },
    "findme": {
      "url": "https://p31-fmipweb.icloud.com:443",
      "status": "active"
    },
    "iworkthumbnailws": {
      "url": "https://p31-iworkthumbnailws.icloud.com:443",
      "status": "active"
    },
    "fmf": {
      "url": "https://p31-fmfweb.icloud.com:443",
      "status": "active"
    },
    "contacts": {
      "url": "https://p31-contactsws.icloud.com:443",
      "status": "active"
    },
    "account": {
      "iCloudEnv": {
        "shortId": "p"
      },
      "url": "https://p31-setup.icloud.com:443",
      "status": "active"
    }
  },
  "pcsEnabled": true,
  "requestInfo": {
    "country": "value",
    "timeZone": "GMT",
    "region": "EN"
  },
  "appsOrder": [
    "mail",
    "contacts",
    "calendar",
    "photos",
    "iclouddrive",
    "notes2",
    "reminders",
    "pages",
    "numbers",
    "keynote",
    "newspublisher",
    "fmf",
    "find",
    "settings"
  ],
  "iCloudInfo": {
    "SafariBookmarksHasMigratedToCloudKit": false
  },
  "version": 1,
  "isExtendedLogin": false,
  "apps": {
    "calendar": {

    },
    "reminders": {

    },
    "keynote": {
      "isQualifiedForBeta": true
    },
    "settings": {
      "canLaunchWithOneFactor": true
    },
    "mail": {

    },
    "numbers": {
      "isQualifiedForBeta": true
    },
    "photos": {

    },
    "pages": {
      "isQualifiedForBeta": true
    },
    "find": {
      "canLaunchWithOneFactor": true
    },
    "notes2": {

    },
    "iclouddrive": {

    },
    "newspublisher": {
      "isHidden": true
    },
    "fmf": {

    },
    "contacts": {

    }
  }
}

Get token to subscribe to push messages

POST (Again with query parameters!) https://p31-pushws.icloud.com/getToken?attempt=1&clientBuildNumber=&clientId=&dsid=<9 digit id>

{
  "pushTokenTTL": 43200,
  "webCourierURL": "https:\/\/webcourier.push.apple.com\/aps",
  "registeredTopics": [
    "<oid 40 characters>",
    "<oid 40 characters>",
    "<oid 40 characters>",
    "<oid 40 characters>",
    "<oid 40 characters>"
  ],
  "pushToken": "<oid 64 characters>"
}

Get the current state to show any badges for the apps

POST https://p31-pushws.icloud.com/getState?clientBuildNumber=&clientId=&dsid=<9 digit id>&pcsEnabled=true

{
  "states": [
    {
      "data": {
        "badge": 0
      },
      "pushTopic": "<oid 40 characters>"
    },
    {
      "data": {
        "badge": 0
      },
      "pushTopic": "<oid 40 characters>"
    },
    {
      "data": {
        "badge": 0
      },
      "pushTopic": "<oid 40 characters>"
    },
    {
      "data": {
        "badge": 0
      },
      "pushTopic": "<oid 40 characters>"
    }
  ]
}

Get detailed settings about the user (sync the client view)

POST https://p31-keyvalueservice.icloud.com/json/sync?clientBuildNumber=&clientId=&dsid=<9 digit id>

{
  "timestamp": 1458910490003,
  "status": 0,
  "apps": [
    {
      "registry-version": "FT=-@RU=<guid>@S=227000",
      "keys": [
        {
          "name": "lastUsedApp",
          "data": "mail"
        },
        {
          "name": "locale",
          "data": "en-us"
        },
        {
          "name": "regionFormat",
          "data": "en-value"
        },
        {
          "name": "regionFormatsMatchLanguage",
          "data": false
        },
        {
          "name": "startupUrls",
          "data": {
            "notes2": "{\"loadCoreTypes\":true,\"url\":\"https://p31-ckdatabasews.icloud.com/database/1/com.apple.notes/production/private/records/changes?\",\"method\":\"POST\",\"requestPayload\":{\"zoneID\":{\"zoneName\":\"Notes\"},\"desiredKeys\":[\"TitleEncrypted\",\"SnippetEncrypted\",\"FirstAttachmentUTIEncrypted\",\"FirstAttachmentThumbnail\",\"FirstAttachmentThumbnailOrientation\",\"ModificationDate\",\"Deleted\",\"Folders\",\"Attachments\"],\"desiredRecordTypes\":[\"Note\"],\"reverse\":true}}",
            "contacts": "https://p31-contactsws.icloud.com:443/co/startup?clientVersion=2.1&dsid=<9 digit id>&locale=en_US&order=first%2Clast"
          }
        },
        {
          "name": "timeZone",
          "data": "value"
        },
        {
          "name": "timeZoneCity",
          "data": "value"
        },
        {
          "name": "timezoneName",
          "data": "value"
        },
        {
          "name": "userPreferredAppleId",
          "data": "email"
        }
      ],
      "registry-status": 1,
      "app-id": "account"
    },
    {
      "registry-version": "FT=-@RU=<guid>@S=337",
      "keys": [
        {
          "name": "countryFormat",
          "data": "country code"
        },
        {
          "name": "displayFields",
          "data": "first,last"
        },
        {
          "name": "displayOrderBy",
          "data": "first,last"
        },
        {
          "name": "preferenceId",
          "data": "1"
        },
        {
          "name": "usePhoneFormat",
          "data": true
        }
      ],
      "registry-status": 1,
      "app-id": "contacts"
    },
    {
      "registry-version": "FT=-@RU=<guid>@S=225132",
      "keys": [
        {
          "name": "alarmsByDefault",
          "data": true
        },
        {
          "name": "calendarListWidth",
          "data": 250
        },
        {
          "name": "customRemindersListWidth",
          "data": 0
        },
        {
          "name": "dateFormat",
          "data": "DD/MM/YYYY"
        },
        {
          "name": "dateSeparator",
          "data": "/"
        },
        {
          "name": "defaultCalendar",
          "data": "<cal id>"
        },
        {
          "name": "defaultEventAlarm",
          "data": {
            "minutes": 15,
            "days": 0,
            "seconds": 0,
            "before": true,
            "hours": 0,
            "weeks": 0
          }
        },
        {
          "name": "emailParticipantsSharingChange",
          "data": false
        },
        {
          "name": "enableTimeZone",
          "data": true
        },
        {
          "name": "hideEvents",
          "data": true
        },
        {
          "name": "hideEventsNum",
          "data": 10
        },
        {
          "name": "hideToDos",
          "data": true
        },
        {
          "name": "hideToDosNum",
          "data": 7
        },
        {
          "name": "hideToDosOutsideView",
          "data": true
        },
        {
          "name": "isCalendarListVisible",
          "data": true
        },
        {
          "name": "lastAlarmSet",
          "data": [

          ]
        },
        {
          "name": "lastTimeZoneSet",
          "data": [
            "value",
            "value"
          ]
        },
        {
          "name": "promptEventUpdates",
          "data": false
        },
        {
          "name": "saveToMailbox",
          "data": false
        },
        {
          "name": "selectedCollection",
          "data": "home"
        },
        {
          "name": "showBirthdays",
          "data": false
        },
        {
          "name": "showDeclinedEvents",
          "data": false
        },
        {
          "name": "showHoursAtATime",
          "data": 8
        },
        {
          "name": "showLunarCalendar",
          "data": false
        },
        {
          "name": "showTodoPane",
          "data": true
        },
        {
          "name": "startWithTodayInWeekView",
          "data": false
        },
        {
          "name": "startingWeekday",
          "data": 0
        },
        {
          "name": "timeFormat",
          "data": 12
        },
        {
          "name": "timeSeparator",
          "data": ":"
        },
        {
          "name": "todoSortOrder",
          "data": "priority"
        },
        {
          "name": "triggerAlarmsInUI",
          "data": false
        },
        {
          "name": "viewingMode",
          "data": 2
        },
        {
          "name": "visibleDays",
          "data": 5
        }
      ],
      "registry-status": 1,
      "app-id": "calendar"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "find"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "fmf"
    },
    {
      "registry-version": "FT=-@RU=<guid>@S=226965",
      "keys": [
        {
          "name": "alias:alias",
          "data": {
            "guid": "alias:alias",
            "emailId": "alias",
            "color": "#a8a8a8",
            "active": true,
            "fullName": "",
            "emails": [
              {
                "address": "alias@me.com",
                "canSendFrom": false
              },
              {
                "address": "alias@icloud.com",
                "canSendFrom": false
              }
            ],
            "type": "CoreMail.AliasAccount",
            "accountDescription": ""
          }
        },
        {
          "name": "country",
          "data": "value"
        },
        {
          "name": "delMsgFolder",
          "data": "folder:Deleted Messages"
        },
        {
          "name": "deleteMessageAfterForwarding",
          "data": false
        },
        {
          "name": "enableVacationReply",
          "data": false
        },
        {
          "name": "forwardEmail",
          "data": false
        },
        {
          "name": "forwardEmailAddress",
          "data": ""
        },
        {
          "name": "identityAccountGuid",
          "data": {
            "guid": "identityAccountGuid",
            "emailId": "firstname.lastname",
            "fullName": "Prabhu Subramanian",
            "emails": [
              {
                "address": "firstname.lastname@me.com",
                "canSendFrom": true
              },
              {
                "address": "firstname.lastname@icloud.com",
                "canSendFrom": false
              }
            ],
            "type": "CoreMail.IdentityAccount",
            "accountDescription": ""
          }
        },
        {
          "name": "moveTrash",
          "data": true
        },
        {
          "name": "timeZone",
          "data": "value"
        },
        {
          "name": "tzOffset",
          "data": 0
        },
        {
          "name": "vacationReply",
          "data": ""
        },
        {
          "name": "~notifyTable",
          "data": [
            {
              "host": "gateway.push.apple.com",
              "token": "<64 character>",
              "timeout": 1452814578
            }
          ]
        }
      ],
      "registry-status": 1,
      "app-id": "mail"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "notes2"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "reminders"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "photos"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "iclouddrive"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "settings"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "pages"
    },
    {
      "registry-version": "FT=-@RU=<guid>@S=70168",
      "keys": [
        {
          "name": "didHideTags",
          "data": true
        },
        {
          "name": "didShowWelcome",
          "data": true
        }
      ],
      "registry-status": 1,
      "app-id": "numbers"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "keynote"
    },
    {
      "registry-version": "",
      "keys": [

      ],
      "registry-status": 1,
      "app-id": "newspublisher"
    }
  ]
}

Get storage info

POST https://setup.icloud.com/setup/ws/1/storageUsageInfo?clientBuildNumber=&clientId=&dsid=<9 digit id>

{
  "storageUsageByMedia": [
    {
      "displayColor": "98d1fd",
      "usageInBytes": 0,
      "displayLabel": "Photos and Videos",
      "mediaKey": "photos"
    },
    {
      "displayColor": "fef236",
      "usageInBytes": 0,
      "displayLabel": "Backup",
      "mediaKey": "backup"
    },
    {
      "displayColor": "bdf131",
      "usageInBytes": 0,
      "displayLabel": "Docs",
      "mediaKey": "docs"
    },
    {
      "displayColor": "fec92e",
      "usageInBytes": 0,
      "displayLabel": "Mail",
      "mediaKey": "mail"
    }
  ],
  "storageUsageInfo": {
    "compStorageInBytes": 0,
    "usedStorageInBytes": 0,
    "totalStorageInBytes": 0,
    "commerceStorageInBytes": 0
  },
  "quotaStatus": {
    "overQuota": false,
    "haveMaxQuotaTier": false,
    "paidQuota": false
  }
}

Get me card

POST https://p31-contactsws.icloud.com/co/mecard/?clientBuildNumber=&clientId=&dsid=<9 digit id>

{
  "meCardId": "<48 char id>",
  "contacts": [
    {
      "lastName": "",
      "notes": "",
      "contactId": "<48 char id>",
      "nickName": "",
      "prefix": "",
      "relatedNames": [
        {
          "field": "",
          "label": "SPOUSE"
        },
        {
          "field": "",
          "label": "CHILD"
        },
        {
          "field": "",
          "label": "MOTHER"
        }
      ],
      "companyName": "",
      "photo": {
        "url": "<url requiring X-APPLE-WEBAUTH-TOKEN cookie>"
      },
      "phones": [
        {
          "field": "",
          "label": "MOBILE"
        }
      ],
      "isCompany": false,
      "suffix": "",
      "IMs": [
        {
          "field": {
            "IMService": "Jabber",
            "userName": ""
          },
          "label": "HOME"
        }
      ],
      "firstName": "",
      "emailAddresses": [
        {
          "field": "",
          "label": "HOME"
        },
        {
          "field": "",
          "label": "WORK"
        }
      ],
      "etag": "",
      "middleName": ""
    }
  ]
}

Get calendar alarms

POST https://p31-calendarws.icloud.com/ca/alarmtriggers/?clientBuildNumber=&clientId=&dsid=<9 digit id>&endDate=YYYY-M-DD&lang=en-??&startDate=YYYY-M-DD&usertz=

{
  "AlarmTrigger": [
    {
      "guid": "",
      "triggerDate": [
        20160326,
        2016,
        3,
        26,
        9,
        0,
        540
      ],
      "messageType": "message",
      "pGuid": "",
      "title": "Easter Monday",
      "location": null,
      "startDate": [
        20160328,
        2016,
        3,
        28,
        0,
        0,
        0
      ],
      "endDate": [
        20160329,
        2016,
        3,
        29,
        0,
        0,
        0
      ],
      "allDay": true,
      "tz": null,
      "duration": 1440,
      "localStartDate": [
        20160328,
        2016,
        3,
        28,
        0,
        0,
        0
      ],
      "localEndDate": [
        20160329,
        2016,
        3,
        29,
        0,
        0,
        0
      ]
    }
  ]
}

Get push messages

Periodic heartbeat to keep session alive

GET https://p31-pushws.icloud.com/refreshWebAuth?clientBuildNumber=&clientId=&dsid=<9 digit id>

{}

Statistics collection

Or we don't collect any data about our users marketing crap.

Tip: Block feedbackws.icloud.com in /etc/hosts

POST https://feedbackws.icloud.com/reportStats

Request json

{
  "stats": [
    {
      "httpMethod": "POST",
      "statusCode": 200,
      "hostname": "www.icloud.com",
      "urlPath": "/setup/ws/1/validate",
      "clientTiming": 1956,
      "uncompressedResponseSize": 3464,
      "region": "EN",
      "country": "GB",
      "statName": "cloudosRequestInfo",
      "sessionID": "<session id>",
      "appName": "cloudos",
      "isLiteAccount": false
    },
    {
      "httpMethod": "POST",
      "statusCode": 200,
      "hostname": "www.icloud.com",
      "urlPath": "/setup/ws/1/storageUsageInfo",
      "clientTiming": 275,
      "uncompressedResponseSize": 603,
      "region": "EN",
      "country": "GB",
      "statName": "cloudosRequestInfo",
      "sessionID": "<session id>",
      "appName": "cloudos",
      "isLiteAccount": false
    },
    {
      "httpMethod": "POST",
      "statusCode": 200,
      "hostname": "www.icloud.com",
      "urlPath": "/registerTopics",
      "clientTiming": 583,
      "uncompressedResponseSize": 439,
      "region": "EN",
      "country": "GB",
      "statName": "cloudosRequestInfo",
      "sessionID": "<session id>",
      "appName": "cloudos",
      "isLiteAccount": false
    },
    {
      "httpMethod": "GET",
      "statusCode": 200,
      "hostname": "www.icloud.com",
      "urlPath": "/co/mecard/",
      "clientTiming": 645,
      "uncompressedResponseSize": 1213,
      "region": "EN",
      "country": "GB",
      "statName": "cloudosRequestInfo",
      "sessionID": "<session id>",
      "appName": "cloudos",
      "isLiteAccount": false
    },
    {
      "asset": "https://www.icloud.com/blank.png",
      "loadTime": 206,
      "region": "EN",
      "country": "GB",
      "statName": "cloudosEdgeLoad",
      "sessionID": "<session id>",
      "hostname": "www.icloud.com",
      "appName": "cloudos",
      "isLiteAccount": false
    },
    {
      "asset": "https://icloud.com/blank.png",
      "loadTime": 627,
      "region": "EN",
      "country": "GB",
      "statName": "cloudosOriginLoad",
      "sessionID": "<session id>",
      "hostname": "www.icloud.com",
      "appName": "cloudos",
      "isLiteAccount": false
    }
  ]
}

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