Move static folder into synapse

This is because otherwise it won't get picked up by python packaging.

This also fixes the problem where the "static" folder was found if
synapse wasn't started from that directory.

synapse/static/client/register/js/register.js

@@ -0,0 +1,117 @@
+window.matrixRegistration = {
+    endpoint: location.origin + "/_matrix/client/api/v1/register"
+};
+
+var setupCaptcha = function() {
+    if (!window.matrixRegistrationConfig) {
+        return;
+    }
+    $.get(matrixRegistration.endpoint, function(response) {
+        var serverExpectsCaptcha = false;
+        for (var i=0; i<response.flows.length; i++) {
+            var flow = response.flows[i];
+            if ("m.login.recaptcha" === flow.type) {
+                serverExpectsCaptcha = true;
+                break;
+            }
+        }
+        if (!serverExpectsCaptcha) {
+            console.log("This server does not require a captcha.");
+            return;
+        }
+        console.log("Setting up ReCaptcha for "+matrixRegistration.endpoint);
+        var public_key = window.matrixRegistrationConfig.recaptcha_public_key;
+        if (public_key === undefined) {
+            console.error("No public key defined for captcha!");
+            setFeedbackString("Misconfigured captcha for server. Contact server admin.");
+            return;
+        }
+        Recaptcha.create(public_key,
+        "regcaptcha",
+        {
+            theme: "red",
+            callback: Recaptcha.focus_response_field
+        });
+        window.matrixRegistration.isUsingRecaptcha = true;
+    }).error(errorFunc);
+    
+};
+
+var submitCaptcha = function(user, pwd) {
+    var challengeToken = Recaptcha.get_challenge();
+    var captchaEntry = Recaptcha.get_response();
+    var data = {
+        type: "m.login.recaptcha",
+        challenge: challengeToken,
+        response: captchaEntry
+    };
+    console.log("Submitting captcha");
+    $.post(matrixRegistration.endpoint, JSON.stringify(data), function(response) {
+        console.log("Success -> "+JSON.stringify(response));
+        submitPassword(user, pwd, response.session);
+    }).error(function(err) {
+        Recaptcha.reload();
+        errorFunc(err);
+    });
+};
+
+var submitPassword = function(user, pwd, session) {
+    console.log("Registering...");
+    var data = {
+        type: "m.login.password",
+        user: user,
+        password: pwd,
+        session: session
+    };
+    $.post(matrixRegistration.endpoint, JSON.stringify(data), function(response) {
+        matrixRegistration.onRegistered(
+            response.home_server, response.user_id, response.access_token
+        );
+    }).error(errorFunc);
+};
+
+var errorFunc = function(err) {
+    if (err.responseJSON && err.responseJSON.error) {
+        setFeedbackString(err.responseJSON.error + " (" + err.responseJSON.errcode + ")");
+    }
+    else {
+        setFeedbackString("Request failed: " + err.status);
+    }
+};
+
+var setFeedbackString = function(text) {
+    $("#feedback").text(text);
+};
+
+matrixRegistration.onLoad = function() {
+    setupCaptcha();
+};
+
+matrixRegistration.signUp = function() {
+    var user = $("#desired_user_id").val();
+    if (user.length == 0) {
+        setFeedbackString("Must specify a username.");
+        return;
+    }
+    var pwd1 = $("#pwd1").val();
+    var pwd2 = $("#pwd2").val();
+    if (pwd1.length < 6) {
+        setFeedbackString("Password: min. 6 characters.");
+        return;
+    }
+    if (pwd1 != pwd2) {
+        setFeedbackString("Passwords do not match.");
+        return;
+    }
+    if (window.matrixRegistration.isUsingRecaptcha) {
+        submitCaptcha(user, pwd1);
+    }
+    else {
+        submitPassword(user, pwd1);
+    }
+};
+
+matrixRegistration.onRegistered = function(hs_url, user_id, access_token) {
+    // clobber this function
+    console.log("onRegistered - This function should be replaced to proceed.");
+};