diff --git a/quarry/net/MicrosoftAuth.py b/quarry/net/MicrosoftAuth.py
new file mode 100644
index 0000000..a095700
--- /dev/null
+++ b/quarry/net/MicrosoftAuth.py
@@ -0,0 +1,124 @@
+import urllib.parse
+import requests
+import re
+import json
+
+CLIENT_ID = "00000000402b5328";
+SCOPE = "service::user.auth.xboxlive.com::MBI_SSL"
+REDIRECT_URI = "https://login.live.com/oauth20_desktop.srf"
+
+LOGIN_URL = "https://login.live.com/oauth20_authorize.srf?"+urllib.parse.urlencode({
+    'client_id' : CLIENT_ID,
+    'response_type':'code',
+    'scope': SCOPE,
+    'redirect_uri' : REDIRECT_URI
+})
+AUTH_TOKEN_URL = "https://login.live.com/oauth20_token.srf"
+XBL_TOKEN_URL = "https://user.auth.xboxlive.com/user/authenticate"
+XSTS_TOKEN_URL = "https://xsts.auth.xboxlive.com/xsts/authorize"
+MC_TOKEN_URL =  "https://api.minecraftservices.com/authentication/login_with_xbox"
+PROFILE_URL = "https://api.minecraftservices.com/minecraft/profile"
+
+# Expected data:
+#   sFTTag: '<input type="hidden" name="PPFT"
+#   id="12345" value="random stuff"/>'
+#
+# This is all inside a long <script> tag on the LOGIN_URL webpage.
+
+PPFT_REGEX = "sFTTag:[ ]?'.*value=\"(.*)\"/>"
+
+# Expected data: 
+#   urlPost: 'https://login.live.com/...'
+# This appears earlier in the same <script> tag.
+
+URLPOST_REGEX = "urlPost:[ ]?'(.+?(?='))"
+AUTHCODE_REGEX = "[?|&]code=([\\w.-]+)"
+
+
+def getAuthorizationCode(email,password):
+    r = requests.get(LOGIN_URL)
+    cookies = r.cookies
+    content = r.text
+    ppft = re.search(PPFT_REGEX,content).group(1)
+    urlPost = re.search(URLPOST_REGEX,content).group(1)
+
+    return microsoftLogin(email,password,cookies,urlPost,ppft)
+
+def microsoftLogin(email,password,cookies,urlPost,ppft):
+    data = {
+        'login':email,
+        'loginfmt':email,
+        'passwd':password,
+        'PPFT':ppft
+    }
+
+
+    r = requests.post(urlPost,cookies=cookies,data=data)
+
+    code = re.search(AUTHCODE_REGEX,r.url).group(1)
+    return code
+
+def getMicrosoftAccessToken(authCode):
+    data = {
+        "client_id": CLIENT_ID,
+        "code": authCode,
+        "grant_type": "authorization_code",
+        "redirect_uri": REDIRECT_URI,
+        "scope": SCOPE
+    }
+
+    r = requests.post(AUTH_TOKEN_URL,data=data)
+    j = json.loads(r.text)
+    return j['access_token']
+
+def getXBLToken(msftAccessToken):
+    data = {
+        "RelyingParty": "https://auth.xboxlive.com",
+        "TokenType": "JWT",
+        "properties": {
+            "AuthMethod": "RPS",
+            "SiteName": "user.auth.xboxlive.com",
+            "RpsTicket": msftAccessToken,
+        }
+    }
+    r = requests.post(XBL_TOKEN_URL,json=data)
+    j = json.loads(r.text)
+    return j['Token'],j['DisplayClaims']['xui'][0]['uhs']
+
+def getXSTSToken(xblToken):
+    data = {
+        'RelyingParty':  'rp://api.minecraftservices.com/',
+        'TokenType': 'JWT',
+        'Properties': {
+            'SandboxId': 'RETAIL',
+            'UserTokens': [
+                xblToken
+            ]
+        }
+    }
+
+    r = requests.post(XSTS_TOKEN_URL,json=data)
+    return json.loads(r.text)['Token']
+
+def getMinecraftAccessToken(UHSToken, xstsToken):
+    data = {
+        'identityToken': ('XBL3.0 x=' + UHSToken + ';' + xstsToken)
+    }
+    r = requests.post(MC_TOKEN_URL,json=data)
+    return json.loads(r.text)['access_token']
+
+def getMinecraftProfile(mcAccessToken):
+    headers = {
+        'Authorization' : 'Bearer ' + mcAccessToken
+    }
+    r = requests.get(PROFILE_URL,headers=headers)
+    return json.loads(r.text)
+
+def login(email,password):
+    authCode = getAuthorizationCode(email,password)
+    msftAccessToken = getMicrosoftAccessToken(authCode)
+    XBLToken, UHSToken = getXBLToken(msftAccessToken)
+    xstsToken = getXSTSToken(XBLToken)
+    mcAccessToken = getMinecraftAccessToken(UHSToken,xstsToken)
+    profile = getMinecraftProfile(mcAccessToken)
+    return mcAccessToken, profile['name'], profile['id']
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