From 386ad854d2c305af25eeaa6c70c9430ae56084f6 Mon Sep 17 00:00:00 2001
From: thePR0M3TH3AN <53631862+PR0M3TH3AN@users.noreply.github.com>
Date: Tue, 21 Oct 2025 19:25:26 -0400
Subject: [PATCH] Add client-first NIP-46 handshake flow

---
 components/login-modal.html        |  97 +++--
 docs/nip46-remote-signers.md       |  45 +-
 js/nostr.js                        | 507 +++++++++++++++++++++--
 js/services/authProviders/nip46.js |  76 +++-
 js/ui/loginModalController.js      | 406 ++++++++++++++++--
 js/utils/qrcode.js                 | 634 +++++++++++++++++++++++++++++
 6 files changed, 1671 insertions(+), 94 deletions(-)
 create mode 100644 js/utils/qrcode.js

diff --git a/components/login-modal.html b/components/login-modal.html
index 1af9e8b1..69cafce8 100644
--- a/components/login-modal.html
+++ b/components/login-modal.html
@@ -240,10 +240,10 @@
           class="space-y-4 rounded-xl border border-border bg-overlay-panel-soft px-5 py-4"
         >
           <div class="space-y-2">
-            <h3 class="text-lg font-semibold text-text">Connect remote signer</h3>
+            <h3 class="text-lg font-semibold text-text">Pair a remote signer</h3>
             <p class="text-sm text-text-muted">
-              Paste the <code>nostrconnect://</code> or <code>bunker://</code> link
-              from your signer to establish a Nostr Connect session.
+              Scan the QR code with your signer or share the connect link to start a
+              Nostr Connect session.
             </p>
           </div>
           <div
@@ -251,27 +251,78 @@
             class="hidden rounded-lg border border-danger/60 bg-danger/10 px-4 py-2 text-sm text-danger"
             role="alert"
           ></div>
+          <div data-nip46-handshake-panel class="space-y-3">
+            <div class="flex flex-col gap-4 sm:flex-row sm:items-start">
+              <div
+                class="flex h-48 w-48 items-center justify-center rounded-lg border border-border-strong bg-bg-muted"
+                data-nip46-qr
+                aria-hidden="true"
+              >
+                <div class="text-center text-xs text-text-muted">
+                  Generating connect code…
+                </div>
+              </div>
+              <div class="flex-1 space-y-2">
+                <label class="block text-sm font-medium text-text" for="nip46HandshakeUri">
+                  Connect URI
+                </label>
+                <textarea
+                  id="nip46HandshakeUri"
+                  class="input"
+                  rows="3"
+                  spellcheck="false"
+                  autocomplete="off"
+                  data-nip46-handshake-uri
+                  readonly
+                ></textarea>
+                <div class="flex flex-wrap items-center gap-2">
+                  <button type="button" class="btn-ghost text-sm" data-nip46-copy-uri disabled>
+                    Copy link
+                  </button>
+                </div>
+                <p
+                  data-nip46-secret
+                  class="hidden text-xs text-text-muted"
+                ></p>
+              </div>
+            </div>
+          </div>
+          <div
+            data-nip46-status
+            class="hidden rounded-lg border border-info/40 bg-info/10 px-4 py-2 text-sm text-info"
+            role="status"
+          ></div>
+          <div
+            data-nip46-auth
+            class="hidden rounded-lg border border-warning/50 bg-warning/10 px-4 py-2 text-sm text-warning"
+            role="alert"
+          >
+            <p data-nip46-auth-message class="mb-2"></p>
+            <button type="button" class="btn-link text-sm" data-nip46-auth-open>
+              Open signer challenge
+            </button>
+          </div>
           <div class="space-y-2">
-            <label
-              class="block text-sm font-medium text-text"
-              for="nip46ConnectUri"
-            >
-              Connection string
-            </label>
-            <textarea
-              id="nip46ConnectUri"
-              class="input"
-              rows="3"
-              spellcheck="false"
-              autocomplete="off"
-              placeholder="nostrconnect://… or bunker://…"
-              data-nip46-connect-uri
-              required
-            ></textarea>
-            <p class="text-xs text-text-muted">
-              We will connect to the relays embedded in the link and request signing
-              permissions on your behalf.
-            </p>
+            <button type="button" class="btn-link text-sm" data-nip46-toggle-manual>
+              Paste a signer-provided bunker link instead
+            </button>
+            <div class="hidden space-y-2" data-nip46-manual-fields>
+              <label class="block text-sm font-medium text-text" for="nip46LegacyUri">
+                Signer link
+              </label>
+              <textarea
+                id="nip46LegacyUri"
+                class="input"
+                rows="2"
+                spellcheck="false"
+                autocomplete="off"
+                placeholder="bunker://…"
+                data-nip46-legacy-uri
+              ></textarea>
+              <p class="text-xs text-text-muted">
+                Use this fallback when your signer cannot scan QR codes.
+              </p>
+            </div>
           </div>
           <div class="space-y-2">
             <label class="inline-flex items-center gap-2 text-sm text-text">
diff --git a/docs/nip46-remote-signers.md b/docs/nip46-remote-signers.md
index f7cbb079..5b486454 100644
--- a/docs/nip46-remote-signers.md
+++ b/docs/nip46-remote-signers.md
@@ -4,26 +4,37 @@ bitvid can delegate event signing to a remote NIP-46 compatible signer. This
 flow lets operators keep long-lived keys on hardened devices while approving
 publish/edit/delete actions from a separate browser session.
 
-## Connection strings
+## Connection workflow
 
-bitvid currently expects `bunker://` style URIs. They should embed the remote
-signer pubkey in the host segment and may include the following query
-parameters:
+### Client-initiated handshake (preferred)
 
-- `relay=` – one or more WSS relay URLs the signer watches for RPC requests.
-  Repeat the parameter to advertise multiple relays.
-- `secret=` – optional shared secret that must echo back during the `connect`
-  handshake.
-- `perms=` – optional permission string. When present bitvid forwards it during
-  the initial `connect` RPC.
-- `name`, `url`, `image` – optional metadata shown in the login modal so users
-  can distinguish between saved signers.
+When an operator chooses the remote signer option, bitvid now generates a fresh
+`nostrconnect://` URI and displays it alongside a QR code. The URI encodes:
 
-URIs without `relay=` parameters fall back to bitvid’s default relay bundle
-(`wss://relay.damus.io`, `wss://nos.lol`, `wss://relay.snort.social`,
-`wss://relay.primal.net`, `wss://relay.nostr.band`). Make sure your signer also
-publishes to at least one of these relays so both the browser and signer see the
-same NIP-46 frames.
+- A short-lived client key pair dedicated to the session.
+- The default WSS relay bundle (`wss://relay.damus.io`, `wss://nos.lol`,
+  `wss://relay.snort.social`, `wss://relay.primal.net`,
+  `wss://relay.nostr.band`).
+- A random `secret` value that must be echoed back by the signer to prevent
+  spoofed acknowledgements.
+- Optional metadata (`name`, `url`, `image`) so the signer can display the
+  client branding during pairing.
+- Optional `perms` requested by the client.
+
+Remote signers should scan the QR code or otherwise receive the
+`nostrconnect://` link, subscribe to the advertised relays, and respond with a
+`connect` acknowledgement signed by the remote signer key. The response must
+include the `secret` value that was present in the URI. bitvid listens for this
+acknowledgement before attempting the RPC `connect` call so operators see a
+clear “waiting for signer” status in the modal.
+
+### Fallback bunker links
+
+Some signers still distribute `bunker://` URIs that point to the remote signer
+pubkey. The modal keeps a “paste bunker link” toggle so operators can supply the
+URI manually when QR pairing isn’t available. These URIs can advertise the same
+`relay=`, `secret=`, `perms=`, `name`, `url`, and `image` parameters described
+above. If no relays are specified the default bundle listed earlier is used.
 
 ## Relay requirements
 
diff --git a/js/nostr.js b/js/nostr.js
index 1260052a..55d6491e 100644
--- a/js/nostr.js
+++ b/js/nostr.js
@@ -193,6 +193,8 @@ const NIP46_PUBLISH_TIMEOUT_MS = 8_000;
 const NIP46_RESPONSE_TIMEOUT_MS = 15_000;
 const NIP46_SIGN_EVENT_TIMEOUT_MS = 20_000;
 const NIP46_MAX_RETRIES = 1;
+const NIP46_HANDSHAKE_TIMEOUT_MS = 60_000;
+const NIP46_AUTH_CHALLENGE_MAX_ATTEMPTS = 5;
 
 function getNip46Storage() {
   if (typeof localStorage !== "undefined" && localStorage) {
@@ -3412,6 +3414,61 @@ function parseNip46ConnectionString(uri) {
   };
 }
 
+function generateNip46Secret(length = 16) {
+  const size = Number.isFinite(length) && length > 0 ? Math.min(64, Math.max(8, Math.floor(length))) : 16;
+  try {
+    if (typeof crypto !== "undefined" && crypto?.getRandomValues) {
+      const bytes = new Uint8Array(size);
+      crypto.getRandomValues(bytes);
+      return Array.from(bytes, (byte) => byte.toString(16).padStart(2, "0")).join("");
+    }
+  } catch (error) {
+    // fall through to Math.random fallback
+  }
+
+  let secret = "";
+  for (let i = 0; i < size; i += 1) {
+    secret += Math.floor(Math.random() * 16).toString(16);
+  }
+  return secret;
+}
+
+function sanitizeNip46Metadata(metadata) {
+  if (!metadata || typeof metadata !== "object") {
+    return {};
+  }
+
+  const normalized = {};
+  for (const key of ["name", "url", "image"]) {
+    if (typeof metadata[key] === "string" && metadata[key].trim()) {
+      normalized[key] = metadata[key].trim();
+    }
+  }
+  return normalized;
+}
+
+async function decryptNip46PayloadWithKeys(privateKey, remotePubkey, ciphertext) {
+  const tools = (await ensureNostrTools()) || getCachedNostrTools();
+  if (!tools) {
+    throw new Error("NostrTools helpers are unavailable for NIP-46 payload decryption.");
+  }
+
+  let decrypt = null;
+  if (tools?.nip44?.v2?.decrypt) {
+    decrypt = (priv, pub, payload) => tools.nip44.v2.decrypt(priv, pub, payload);
+  } else if (tools?.nip44?.decrypt) {
+    decrypt = (priv, pub, payload) => tools.nip44.decrypt(priv, pub, payload);
+  } else if (tools?.nip04?.decrypt) {
+    decrypt = (priv, pub, payload) => tools.nip04.decrypt(priv, pub, payload);
+  }
+
+  if (!decrypt) {
+    throw new Error("Remote signer encryption helpers are unavailable.");
+  }
+
+  return decrypt(privateKey, remotePubkey, ciphertext);
+}
+
 class Nip46RpcClient {
   constructor({
     nostrClient,
@@ -4616,6 +4673,46 @@ export class NostrClient {
     return { privateKey, publicKey: publicKey.toLowerCase() };
   }
 
+  async prepareRemoteSignerHandshake({ metadata, relays, secret, permissions } = {}) {
+    const keyPair = await this.createNip46KeyPair();
+    const sanitizedMetadata = sanitizeNip46Metadata(metadata);
+    const requestedPermissions =
+      typeof permissions === "string" && permissions.trim() ? permissions.trim() : "";
+
+    const resolvedRelays = resolveNip46Relays(relays, this.relays);
+    const handshakeSecret =
+      typeof secret === "string" && secret.trim() ? secret.trim() : generateNip46Secret();
+
+    const params = [];
+    for (const relay of resolvedRelays) {
+      params.push(`relay=${encodeURIComponent(relay)}`);
+    }
+    if (handshakeSecret) {
+      params.push(`secret=${encodeURIComponent(handshakeSecret)}`);
+    }
+    if (requestedPermissions) {
+      params.push(`perms=${encodeURIComponent(requestedPermissions)}`);
+    }
+    for (const [key, value] of Object.entries(sanitizedMetadata)) {
+      params.push(`${encodeURIComponent(key)}=${encodeURIComponent(value)}`);
+    }
+
+    const query = params.length ? `?${params.join("&")}` : "";
+    const uri = `nostrconnect://${keyPair.publicKey}${query}`;
+
+    return {
+      type: "client",
+      connectionString: uri,
+      uri,
+      clientPrivateKey: keyPair.privateKey,
+      clientPublicKey: keyPair.publicKey,
+      relays: resolvedRelays,
+      secret: handshakeSecret,
+      permissions: requestedPermissions,
+      metadata: sanitizedMetadata,
+    };
+  }
+
   installNip46Client(client, { userPubkey } = {}) {
     if (this.nip46Client && this.nip46Client !== client) {
       try {
@@ -4638,54 +4735,398 @@ export class NostrClient {
     return signer;
   }
 
-  async connectRemoteSigner({ connectionString, remember = true } = {}) {
+  async waitForRemoteSignerHandshake({
+    clientPrivateKey,
+    clientPublicKey,
+    relays,
+    secret,
+    onAuthUrl,
+    onStatus,
+    timeoutMs,
+  } = {}) {
+    const normalizedClientPublicKey = normalizeNostrPubkey(clientPublicKey);
+    if (!normalizedClientPublicKey) {
+      throw new Error("A client public key is required to await the remote signer handshake.");
+    }
+
+    if (!clientPrivateKey || typeof clientPrivateKey !== "string" || !HEX64_REGEX.test(clientPrivateKey)) {
+      throw new Error("A client private key is required to await the remote signer handshake.");
+    }
+
+    const resolvedRelays = resolveNip46Relays(relays, this.relays);
+    if (!resolvedRelays.length) {
+      throw new Error("No relays available to complete the remote signer handshake.");
+    }
+
+    const pool = await this.ensurePool();
+    const filters = [
+      {
+        kinds: [NIP46_RPC_KIND],
+        "#p": [normalizedClientPublicKey],
+      },
+    ];
+
+    const waitTimeout = Number.isFinite(timeoutMs) && timeoutMs > 0 ? timeoutMs : NIP46_HANDSHAKE_TIMEOUT_MS;
+
+    return new Promise((resolve, reject) => {
+      let settled = false;
+      const cleanup = () => {
+        if (settled) {
+          return;
+        }
+        settled = true;
+        try {
+          subscription?.unsub?.();
+        } catch (error) {
+          // ignore subscription cleanup failures
+        }
+        if (timeoutId) {
+          clearTimeout(timeoutId);
+        }
+      };
+
+      const timeoutId = setTimeout(() => {
+        cleanup();
+        const error = new Error("Timed out waiting for the remote signer to acknowledge the connection.");
+        error.code = "nip46-handshake-timeout";
+        reject(error);
+      }, waitTimeout);
+
+      let subscription;
+      try {
+        subscription = pool.sub(resolvedRelays, filters);
+      } catch (error) {
+        cleanup();
+        reject(error);
+        return;
+      }
+
+      subscription.on("event", (event) => {
+        if (settled) {
+          return;
+        }
+
+        if (!event || event.kind !== NIP46_RPC_KIND) {
+          return;
+        }
+
+        const remotePubkey = normalizeNostrPubkey(event.pubkey);
+        if (!remotePubkey) {
+          return;
+        }
+
+        Promise.resolve()
+          .then(() => decryptNip46PayloadWithKeys(clientPrivateKey, remotePubkey, event.content))
+          .then((payload) => {
+            let parsed;
+            try {
+              parsed = JSON.parse(payload);
+            } catch (error) {
+              devLogger.warn("[nostr] Failed to parse remote signer handshake payload:", error);
+              return;
+            }
+
+            const resultValue = typeof parsed?.result === "string" ? parsed.result.trim() : "";
+            const errorValue = typeof parsed?.error === "string" ? parsed.error.trim() : "";
+
+            if (resultValue === "auth_url" && errorValue) {
+              if (typeof onAuthUrl === "function") {
+                try {
+                  onAuthUrl(errorValue, {
+                    phase: "handshake",
+                    remotePubkey,
+                    requestId: typeof parsed?.id === "string" ? parsed.id : "",
+                  });
+                } catch (callbackError) {
+                  devLogger.warn("[nostr] Handshake auth_url callback threw:", callbackError);
+                }
+              }
+              return;
+            }
+
+            if (secret) {
+              if (!resultValue || resultValue !== secret) {
+                return;
+              }
+            }
+
+            if (!secret && resultValue) {
+              const normalized = resultValue.toLowerCase();
+              if (!["ack", "ok", "success"].includes(normalized)) {
+                return;
+              }
+            }
+
+            cleanup();
+
+            if (typeof onStatus === "function") {
+              try {
+                onStatus({
+                  phase: "handshake",
+                  state: "acknowledged",
+                  message: "Remote signer acknowledged the connect request.",
+                  remotePubkey,
+                });
+              } catch (callbackError) {
+                devLogger.warn("[nostr] Handshake status callback threw:", callbackError);
+              }
+            }
+
+            resolve({
+              remotePubkey,
+              response: parsed,
+            });
+          })
+          .catch((error) => {
+            devLogger.warn("[nostr] Failed to decrypt remote signer handshake payload:", error);
+          });
+      });
+
+      subscription.on("eose", () => {
+        // no-op: handshake responses are push-based
+      });
+    });
+  }
+
+  async connectRemoteSigner({
+    connectionString,
+    remember = true,
+    clientPrivateKey: providedClientPrivateKey = "",
+    clientPublicKey: providedClientPublicKey = "",
+    relays: providedRelays = [],
+    secret: providedSecret = "",
+    permissions: providedPermissions = "",
+    metadata: providedMetadata = {},
+    onAuthUrl,
+    onStatus,
+    handshakeTimeoutMs,
+  } = {}) {
     const parsed = parseNip46ConnectionString(connectionString);
-    if (!parsed || parsed.type !== "remote" || !parsed.remotePubkey) {
+    if (!parsed) {
       const error = new Error(
-        "Unsupported NIP-46 URI. Paste the bunker:// link provided by your signer.",
+        "Unsupported NIP-46 URI. Provide a nostrconnect:// handshake or bunker:// pointer.",
       );
       error.code = "invalid-connection-string";
       throw error;
     }
 
-    const keyPair = await this.createNip46KeyPair();
-    const relays = resolveNip46Relays(parsed.relays, this.relays);
+    const baseMetadata = sanitizeNip46Metadata(parsed.metadata);
+    const overrideMetadata = sanitizeNip46Metadata(providedMetadata);
+    const metadata = { ...baseMetadata, ...overrideMetadata };
 
-    this.emitRemoteSignerChange({
-      state: "connecting",
-      remotePubkey: parsed.remotePubkey,
-      relays,
-      metadata: parsed.metadata,
-    });
+    const handleStatus = (status) => {
+      if (typeof onStatus !== "function") {
+        return;
+      }
+      try {
+        onStatus(status);
+      } catch (error) {
+        devLogger.warn("[nostr] Remote signer status callback threw:", error);
+      }
+    };
+
+    const handleAuthChallenge = async (url, context = {}) => {
+      if (typeof onAuthUrl !== "function" || !url) {
+        return;
+      }
+      try {
+        const result = onAuthUrl(url, context);
+        if (result && typeof result.then === "function") {
+          await result.catch((error) => {
+            devLogger.warn("[nostr] Auth challenge callback promise rejected:", error);
+          });
+        }
+      } catch (error) {
+        devLogger.warn("[nostr] Remote signer auth callback threw:", error);
+      }
+    };
+
+    const mergedRelaysSource = parsed.relays.length ? parsed.relays : providedRelays;
+    const relays = resolveNip46Relays(mergedRelaysSource, this.relays);
+
+    let secret = typeof providedSecret === "string" && providedSecret.trim() ? providedSecret.trim() : parsed.secret;
+    let permissions =
+      typeof providedPermissions === "string" && providedPermissions.trim()
+        ? providedPermissions.trim()
+        : parsed.permissions;
+
+    let clientPrivateKey = "";
+    let clientPublicKey = "";
+    let remotePubkey = normalizeNostrPubkey(parsed.remotePubkey);
+
+    if (parsed.type === "client") {
+      clientPrivateKey =
+        typeof providedClientPrivateKey === "string" && providedClientPrivateKey.trim()
+          ? providedClientPrivateKey.trim().toLowerCase()
+          : "";
+
+      if (!clientPrivateKey || !HEX64_REGEX.test(clientPrivateKey)) {
+        const error = new Error(
+          "Remote signer handshake requires the generated client private key.",
+        );
+        error.code = "missing-client-private-key";
+        throw error;
+      }
+
+      clientPublicKey = normalizeNostrPubkey(providedClientPublicKey) || parsed.clientPubkey;
+      if (!clientPublicKey) {
+        const tools = (await ensureNostrTools()) || getCachedNostrTools();
+        if (!tools || typeof tools.getPublicKey !== "function") {
+          throw new Error("Public key derivation is unavailable for the remote signer handshake.");
+        }
+        clientPublicKey = normalizeNostrPubkey(tools.getPublicKey(clientPrivateKey));
+      }
+
+      if (!clientPublicKey || !HEX64_REGEX.test(clientPublicKey)) {
+        const error = new Error("Invalid client public key for the remote signer handshake.");
+        error.code = "invalid-client-public-key";
+        throw error;
+      }
+
+      if (parsed.clientPubkey && normalizeNostrPubkey(parsed.clientPubkey) !== clientPublicKey) {
+        const error = new Error("Handshake public key mismatch detected.");
+        error.code = "client-public-key-mismatch";
+        throw error;
+      }
+
+      if (!secret) {
+        secret = generateNip46Secret();
+      }
+
+      handleStatus({
+        phase: "handshake",
+        state: "waiting",
+        message: "Waiting for the signer to acknowledge the connection…",
+        relays,
+      });
+
+      this.emitRemoteSignerChange({
+        state: "connecting",
+        relays,
+        metadata,
+        message: "Waiting for the signer to acknowledge the connection.",
+      });
+
+      let handshakeResult;
+      try {
+        handshakeResult = await this.waitForRemoteSignerHandshake({
+          clientPrivateKey,
+          clientPublicKey,
+          relays,
+          secret,
+          onAuthUrl: (url, context) => handleAuthChallenge(url, context),
+          onStatus: handleStatus,
+          timeoutMs: handshakeTimeoutMs,
+        });
+      } catch (error) {
+        this.emitRemoteSignerChange({
+          state: "error",
+          relays,
+          metadata,
+          message: error?.message || "Remote signer handshake failed.",
+          error,
+        });
+        throw error;
+      }
+
+      remotePubkey = normalizeNostrPubkey(handshakeResult?.remotePubkey);
+      if (!remotePubkey) {
+        const error = new Error("Remote signer did not return a valid public key.");
+        error.code = "missing-remote-pubkey";
+        throw error;
+      }
+    } else {
+      const keyPair = await this.createNip46KeyPair(
+        providedClientPrivateKey,
+        providedClientPublicKey,
+      );
+      clientPrivateKey = keyPair.privateKey;
+      clientPublicKey = keyPair.publicKey;
+
+      this.emitRemoteSignerChange({
+        state: "connecting",
+        remotePubkey,
+        relays,
+        metadata,
+      });
+    }
+
+    if (!remotePubkey) {
+      remotePubkey = normalizeNostrPubkey(parsed.remotePubkey);
+    }
+
+    if (!remotePubkey) {
+      const error = new Error("Remote signer pubkey is required to establish the session.");
+      error.code = "missing-remote-pubkey";
+      throw error;
+    }
 
     const client = new Nip46RpcClient({
       nostrClient: this,
-      clientPrivateKey: keyPair.privateKey,
-      clientPublicKey: keyPair.publicKey,
-      remotePubkey: parsed.remotePubkey,
+      clientPrivateKey,
+      clientPublicKey,
+      remotePubkey,
       relays,
-      secret: parsed.secret,
-      permissions: parsed.permissions,
-      metadata: parsed.metadata,
+      secret,
+      permissions,
+      metadata,
     });
 
     try {
       await client.ensureSubscription();
-      await client.connect({ permissions: parsed.permissions });
+
+      handleStatus({
+        phase: "connect",
+        state: "request",
+        message: "Requesting approval from the remote signer…",
+        remotePubkey,
+      });
+
+      let attempts = 0;
+      // Attempt the connect RPC, handling auth challenges when provided.
+      for (;;) {
+        try {
+          await client.connect({ permissions });
+          break;
+        } catch (error) {
+          if (error?.code === "auth-challenge" && error.authUrl) {
+            attempts += 1;
+            handleStatus({
+              phase: "auth",
+              state: "waiting",
+              message: "Complete the authentication challenge in your signer…",
+              remotePubkey,
+              attempt: attempts,
+            });
+            await handleAuthChallenge(error.authUrl, {
+              phase: "connect",
+              remotePubkey,
+              attempt: attempts,
+            });
+
+            if (attempts >= NIP46_AUTH_CHALLENGE_MAX_ATTEMPTS) {
+              throw error;
+            }
+            continue;
+          }
+          throw error;
+        }
+      }
+
       const userPubkey = await client.getUserPubkey();
-      client.metadata = parsed.metadata;
+      client.metadata = metadata;
       const signer = this.installNip46Client(client, { userPubkey });
 
       if (remember) {
         writeStoredNip46Session({
           version: 1,
-          clientPrivateKey: keyPair.privateKey,
-          clientPublicKey: keyPair.publicKey,
-          remotePubkey: parsed.remotePubkey,
+          clientPrivateKey,
+          clientPublicKey,
+          remotePubkey,
           relays,
-          secret: parsed.secret,
-          permissions: parsed.permissions,
-          metadata: parsed.metadata,
+          secret,
+          permissions,
+          metadata,
           userPubkey,
           lastConnectedAt: Date.now(),
         });
@@ -4695,10 +5136,18 @@ export class NostrClient {
 
       this.emitRemoteSignerChange({
         state: "connected",
-        remotePubkey: parsed.remotePubkey,
+        remotePubkey,
         userPubkey,
         relays,
-        metadata: parsed.metadata,
+        metadata,
+      });
+
+      handleStatus({
+        phase: "connected",
+        state: "ready",
+        message: "Remote signer connected successfully.",
+        remotePubkey,
+        userPubkey,
       });
 
       return { pubkey: userPubkey, signer };
@@ -4710,9 +5159,9 @@ export class NostrClient {
       }
       this.emitRemoteSignerChange({
         state: "error",
-        remotePubkey: parsed.remotePubkey,
+        remotePubkey,
         relays,
-        metadata: parsed.metadata,
+        metadata,
         message: error?.message || "Remote signer connection failed.",
         error,
       });
diff --git a/js/services/authProviders/nip46.js b/js/services/authProviders/nip46.js
index 7991f6f1..badaa808 100644
--- a/js/services/authProviders/nip46.js
+++ b/js/services/authProviders/nip46.js
@@ -1,3 +1,5 @@
+import { devLogger } from "../../utils/logger.js";
+
 const PROVIDER_ID = "nip46";
 const PROVIDER_LABEL = "remote signer (nip-46)";
 const PROVIDER_DESCRIPTION =
@@ -49,6 +51,15 @@ function normalizeOptions(options) {
       connectionString: "",
       remember: true,
       reuseStored: false,
+      mode: "handshake",
+      onHandshakePrepared: null,
+      onStatus: null,
+      onAuthUrl: null,
+      metadata: {},
+      secret: "",
+      permissions: "",
+      relays: [],
+      handshakeTimeoutMs: undefined,
     };
   }
 
@@ -57,6 +68,22 @@ function normalizeOptions(options) {
       typeof options.connectionString === "string" ? options.connectionString.trim() : "",
     remember: options.remember !== false,
     reuseStored: options.reuseStored === true,
+    mode: options.mode === "manual" ? "manual" : "handshake",
+    onHandshakePrepared:
+      typeof options.onHandshakePrepared === "function" ? options.onHandshakePrepared : null,
+    onStatus: typeof options.onStatus === "function" ? options.onStatus : null,
+    onAuthUrl: typeof options.onAuthUrl === "function" ? options.onAuthUrl : null,
+    metadata: options.metadata && typeof options.metadata === "object" ? options.metadata : {},
+    secret:
+      typeof options.secret === "string" && options.secret.trim() ? options.secret.trim() : "",
+    permissions:
+      typeof options.permissions === "string" && options.permissions.trim()
+        ? options.permissions.trim()
+        : "",
+    relays: Array.isArray(options.relays) ? options.relays : [],
+    handshakeTimeoutMs: Number.isFinite(options.handshakeTimeoutMs)
+      ? Number(options.handshakeTimeoutMs)
+      : undefined,
   };
 }
 
@@ -95,7 +122,7 @@ export default {
       }
 
       result = await nostrClient.useStoredRemoteSigner();
-    } else {
+    } else if (normalized.mode === "manual") {
       const uri = normalized.connectionString;
       if (!uri) {
         const error = new Error("A connection string is required to continue.");
@@ -106,7 +133,54 @@ export default {
       result = await nostrClient.connectRemoteSigner({
         connectionString: uri,
         remember: normalized.remember,
+        onAuthUrl: normalized.onAuthUrl,
+        onStatus: normalized.onStatus,
       });
+    } else {
+      if (normalized.onStatus) {
+        try {
+          normalized.onStatus({
+            phase: "handshake",
+            state: "preparing",
+            message: "Generating remote signer connect link…",
+          });
+        } catch (callbackError) {
+          devLogger.warn("[nip46] Handshake status callback threw:", callbackError);
+        }
+      }
+
+      const handshake = await nostrClient.prepareRemoteSignerHandshake({
+        metadata: normalized.metadata,
+        relays: normalized.relays,
+        secret: normalized.secret,
+        permissions: normalized.permissions,
+      });
+
+      if (normalized.onHandshakePrepared) {
+        try {
+          normalized.onHandshakePrepared(handshake);
+        } catch (callbackError) {
+          devLogger.warn("[nip46] Handshake prepared callback threw:", callbackError);
+        }
+      }
+
+      result = await nostrClient.connectRemoteSigner({
+        connectionString: handshake.connectionString,
+        remember: normalized.remember,
+        clientPrivateKey: handshake.clientPrivateKey,
+        clientPublicKey: handshake.clientPublicKey,
+        relays: handshake.relays,
+        secret: handshake.secret,
+        permissions: handshake.permissions,
+        metadata: handshake.metadata,
+        onAuthUrl: normalized.onAuthUrl,
+        onStatus: normalized.onStatus,
+        handshakeTimeoutMs: normalized.handshakeTimeoutMs,
+      });
+
+      if (result && typeof result === "object") {
+        result.handshake = handshake;
+      }
     }
 
     const pubkey = normalizePubkey(result);
diff --git a/js/ui/loginModalController.js b/js/ui/loginModalController.js
index 91c5b5d3..af8e8dac 100644
--- a/js/ui/loginModalController.js
+++ b/js/ui/loginModalController.js
@@ -1,4 +1,5 @@
 import { devLogger, userLogger } from "../utils/logger.js";
+import { renderQrCode } from "../utils/qrcode.js";
 
 const noop = () => {};
 const SLOW_PROVIDER_DELAY_MS = 8_000;
@@ -261,6 +262,7 @@ export default class LoginModalController {
     this.boundClickHandler = (event) => this.handleContainerClick(event);
     this.activeNsecForm = null;
     this.activeNip46Form = null;
+    this.pendingNip46Cleanup = null;
     this.remoteSignerUnsubscribe = null;
     this.lastRemoteSignerStatus = null;
     this.nextRequestLoginOptions = null;
@@ -751,15 +753,26 @@ export default class LoginModalController {
       return null;
     }
 
-    const connectInput = form.querySelector("[data-nip46-connect-uri]");
+    const handshakePanel = form.querySelector("[data-nip46-handshake-panel]");
+    const qrContainer = form.querySelector("[data-nip46-qr]");
+    const handshakeInput = form.querySelector("[data-nip46-handshake-uri]");
+    const copyButton = form.querySelector("[data-nip46-copy-uri]");
+    const secretNode = form.querySelector("[data-nip46-secret]");
+    const statusNode = form.querySelector("[data-nip46-status]");
+    const authContainer = form.querySelector("[data-nip46-auth]");
+    const authMessageNode = form.querySelector("[data-nip46-auth-message]");
+    const authOpenButton = form.querySelector("[data-nip46-auth-open]");
+    const manualToggle = form.querySelector("[data-nip46-toggle-manual]");
+    const manualFields = form.querySelector("[data-nip46-manual-fields]");
+    const manualInput = form.querySelector("[data-nip46-legacy-uri]");
     const rememberCheckbox = form.querySelector("[data-nip46-remember]");
     const reuseButton = form.querySelector("[data-nip46-reuse]");
     const cancelButton = form.querySelector("[data-nip46-cancel]");
+    const submitButton = form.querySelector("[data-nip46-submit]");
     const errorNode = form.querySelector("[data-nip46-error]");
 
     const storedMetadata = this.getStoredNip46Metadata();
     const hasStoredSession = storedMetadata?.hasSession === true;
-
     if (reuseButton instanceof HTMLButtonElement) {
       reuseButton.classList.toggle("hidden", !hasStoredSession);
     }
@@ -781,6 +794,25 @@ export default class LoginModalController {
     this.modalBody.appendChild(form);
     this.activeNip46Form = form;
 
+    if (handshakeInput instanceof HTMLTextAreaElement) {
+      handshakeInput.readOnly = true;
+      handshakeInput.value = "";
+      handshakeInput.placeholder = "Waiting for connect link…";
+    }
+    if (copyButton instanceof HTMLButtonElement) {
+      copyButton.disabled = true;
+    }
+
+    const statusClassMap = {
+      info: ["border-info/40", "bg-info/10", "text-info"],
+      success: ["border-success/40", "bg-success/10", "text-success"],
+      warning: ["border-warning/50", "bg-warning/10", "text-warning"],
+      danger: ["border-danger/60", "bg-danger/10", "text-danger"],
+    };
+    const statusClassValues = new Set(
+      Object.values(statusClassMap).flat(),
+    );
+
     const setError = (message) => {
       if (!(errorNode instanceof HTMLElement)) {
         return;
@@ -795,14 +827,190 @@ export default class LoginModalController {
       }
     };
 
-    setError("");
-    if (connectInput instanceof HTMLTextAreaElement) {
-      connectInput.focus();
-    }
+    const setStatus = (message, variant = "info") => {
+      if (!(statusNode instanceof HTMLElement)) {
+        return;
+      }
+      const normalized = typeof message === "string" ? message.trim() : "";
+      if (!normalized) {
+        statusNode.textContent = "";
+        statusNode.classList.add("hidden");
+        for (const cls of statusClassValues) {
+          statusNode.classList.remove(cls);
+        }
+        return;
+      }
+      statusNode.textContent = normalized;
+      statusNode.classList.remove("hidden");
+      for (const cls of statusClassValues) {
+        statusNode.classList.remove(cls);
+      }
+      const classes = statusClassMap[variant] || statusClassMap.info;
+      statusNode.classList.add(...classes);
+    };
+
+    const resetStatus = () => setStatus("", "info");
+
+    let qrInstance = null;
+    let manualMode = false;
+    let pendingAuthUrl = "";
+
+    const setAuthChallenge = (url) => {
+      pendingAuthUrl = typeof url === "string" ? url.trim() : "";
+      if (!(authContainer instanceof HTMLElement)) {
+        return;
+      }
+      if (!pendingAuthUrl) {
+        authContainer.classList.add("hidden");
+        if (authMessageNode instanceof HTMLElement) {
+          authMessageNode.textContent = "";
+        }
+        return;
+      }
+      authContainer.classList.remove("hidden");
+      if (authMessageNode instanceof HTMLElement) {
+        authMessageNode.textContent =
+          "The signer requested additional authentication.";
+      }
+    };
+
+    const clearAuthChallenge = () => {
+      setAuthChallenge("");
+    };
+
+    const setPendingState = (pending) => {
+      const disabled = pending === true;
+      if (submitButton instanceof HTMLButtonElement) {
+        submitButton.disabled = disabled;
+      }
+      if (rememberCheckbox instanceof HTMLInputElement) {
+        rememberCheckbox.disabled = disabled;
+      }
+      if (manualToggle instanceof HTMLButtonElement) {
+        manualToggle.disabled = disabled;
+      }
+      if (manualInput instanceof HTMLTextAreaElement) {
+        manualInput.disabled = disabled;
+      }
+      if (reuseButton instanceof HTMLButtonElement) {
+        reuseButton.disabled = disabled;
+      }
+      if (cancelButton instanceof HTMLButtonElement) {
+        cancelButton.disabled = disabled;
+      }
+      if (copyButton instanceof HTMLButtonElement) {
+        const hasUri =
+          handshakeInput instanceof HTMLTextAreaElement &&
+          !!handshakeInput.value;
+        copyButton.disabled = disabled || !hasUri;
+      }
+    };
+
+    const updateHandshakeDisplay = (detail) => {
+      const uri =
+        detail && typeof detail === "object"
+          ? detail.uri || detail.connectionString || ""
+          : "";
+      if (handshakeInput instanceof HTMLTextAreaElement) {
+        handshakeInput.value = uri;
+      }
+      if (copyButton instanceof HTMLButtonElement) {
+        copyButton.disabled = !uri;
+      }
+      if (secretNode instanceof HTMLElement) {
+        const secretValue =
+          detail && typeof detail.secret === "string" ? detail.secret.trim() : "";
+        if (secretValue) {
+          secretNode.textContent = `Secret: ${secretValue}`;
+          secretNode.classList.remove("hidden");
+        } else {
+          secretNode.textContent = "";
+          secretNode.classList.add("hidden");
+        }
+      }
+      if (qrContainer instanceof HTMLElement) {
+        qrContainer.innerHTML = "";
+        if (uri) {
+          qrInstance = renderQrCode(qrContainer, uri, { width: 224, height: 224 });
+        } else {
+          qrInstance = null;
+        }
+      }
+      resetStatus();
+      clearAuthChallenge();
+      setError("");
+    };
+
+    const handleStatus = (status) => {
+      if (!status || typeof status !== "object") {
+        resetStatus();
+        return;
+      }
+      const message =
+        typeof status.message === "string" ? status.message.trim() : "";
+      if (!message) {
+        resetStatus();
+        return;
+      }
+      let variant =
+        typeof status.variant === "string" && status.variant.trim()
+          ? status.variant.trim().toLowerCase()
+          : "";
+      if (!variant) {
+        if (status.phase === "auth") {
+          variant = "warning";
+        } else if (
+          status.phase === "connected" ||
+          status.state === "ready" ||
+          status.state === "acknowledged"
+        ) {
+          variant = "success";
+        } else {
+          variant = "info";
+        }
+      }
+      setStatus(message, variant);
+    };
+
+    const handleAuthUrl = (url) => {
+      const normalized = typeof url === "string" ? url.trim() : "";
+      if (!normalized) {
+        clearAuthChallenge();
+        return;
+      }
+      setAuthChallenge(normalized);
+    };
+
+    const applyManualMode = (enabled) => {
+      manualMode = enabled === true;
+      if (manualFields instanceof HTMLElement) {
+        manualFields.classList.toggle("hidden", !manualMode);
+      }
+      if (handshakePanel instanceof HTMLElement) {
+        handshakePanel.classList.toggle("hidden", manualMode);
+      }
+      if (manualToggle instanceof HTMLButtonElement) {
+        manualToggle.textContent = manualMode
+          ? "Back to QR pairing"
+          : "Paste a signer-provided bunker link instead";
+      }
+      if (manualMode && manualInput instanceof HTMLTextAreaElement) {
+        manualInput.focus();
+      }
+      if (!manualMode && manualInput instanceof HTMLTextAreaElement) {
+        manualInput.value = "";
+      }
+      resetStatus();
+      clearAuthChallenge();
+      setError("");
+    };
 
     let submitHandler = null;
     let cancelHandler = null;
     let reuseHandler = null;
+    let copyHandler = null;
+    let manualToggleHandler = null;
+    let authOpenHandler = null;
 
     const cleanup = () => {
       if (submitHandler) {
@@ -814,6 +1022,15 @@ export default class LoginModalController {
       if (reuseHandler && reuseButton instanceof HTMLButtonElement) {
         reuseButton.removeEventListener("click", reuseHandler);
       }
+      if (copyHandler && copyButton instanceof HTMLButtonElement) {
+        copyButton.removeEventListener("click", copyHandler);
+      }
+      if (manualToggleHandler && manualToggle instanceof HTMLButtonElement) {
+        manualToggle.removeEventListener("click", manualToggleHandler);
+      }
+      if (authOpenHandler && authOpenButton instanceof HTMLButtonElement) {
+        authOpenButton.removeEventListener("click", authOpenHandler);
+      }
 
       if (form.parentElement) {
         form.parentElement.removeChild(form);
@@ -827,38 +1044,97 @@ export default class LoginModalController {
         }
       }
       this.activeNip46Form = null;
+      this.pendingNip46Cleanup = null;
+      qrInstance = null;
+      clearAuthChallenge();
+      resetStatus();
+      setError("");
     };
 
+    resetStatus();
+    clearAuthChallenge();
+    applyManualMode(false);
+    setError("");
+
     return new Promise((resolve) => {
       let settled = false;
-      const finish = (detail) => {
+
+      const finish = (detail, { keepMounted = false } = {}) => {
         if (settled) {
           return;
         }
         settled = true;
-        cleanup();
+
+        if (keepMounted) {
+          this.pendingNip46Cleanup = () => {
+            cleanup();
+          };
+        } else {
+          cleanup();
+        }
+
         resolve(detail);
       };
 
       submitHandler = (event) => {
         event.preventDefault();
         setError("");
-
-        if (!(connectInput instanceof HTMLTextAreaElement)) {
-          setError("Enter the remote signer connection link to continue.");
-          return;
-        }
-
-        const raw = connectInput.value.trim();
-        if (!raw) {
-          setError("Paste the nostrconnect:// or bunker:// link from your signer.");
-          connectInput.focus();
-          return;
-        }
+        resetStatus();
+        clearAuthChallenge();
 
         const remember =
-          rememberCheckbox instanceof HTMLInputElement ? rememberCheckbox.checked : true;
-        finish({ connectionString: raw, remember: remember !== false });
+          rememberCheckbox instanceof HTMLInputElement
+            ? rememberCheckbox.checked
+            : true;
+
+        if (manualMode) {
+          if (!(manualInput instanceof HTMLTextAreaElement)) {
+            setError("Manual input is unavailable.");
+            return;
+          }
+          const raw = manualInput.value.trim();
+          if (!raw) {
+            setError("Paste the bunker:// link from your signer.");
+            manualInput.focus();
+            return;
+          }
+          setPendingState(true);
+          finish(
+            {
+              mode: "manual",
+              connectionString: raw,
+              remember: remember !== false,
+              onStatus: handleStatus,
+              onAuthUrl: handleAuthUrl,
+            },
+            { keepMounted: false },
+          );
+          return;
+        }
+
+        const metadata = {};
+        if (this.document && typeof this.document.title === "string") {
+          const title = this.document.title.trim();
+          if (title) {
+            metadata.name = title;
+          }
+        }
+        if (this.window?.location?.origin) {
+          metadata.url = this.window.location.origin;
+        }
+
+        setPendingState(true);
+        finish(
+          {
+            mode: "handshake",
+            remember: remember !== false,
+            metadata,
+            onHandshakePrepared: updateHandshakeDisplay,
+            onStatus: handleStatus,
+            onAuthUrl: handleAuthUrl,
+          },
+          { keepMounted: true },
+        );
       };
 
       form.addEventListener("submit", submitHandler);
@@ -866,7 +1142,7 @@ export default class LoginModalController {
       if (cancelButton instanceof HTMLButtonElement) {
         cancelHandler = (event) => {
           event.preventDefault();
-          finish(null);
+          finish(null, { keepMounted: false });
         };
         cancelButton.addEventListener("click", cancelHandler);
       }
@@ -874,10 +1150,82 @@ export default class LoginModalController {
       if (reuseButton instanceof HTMLButtonElement) {
         reuseHandler = (event) => {
           event.preventDefault();
-          finish({ reuseStored: true });
+          finish({ reuseStored: true }, { keepMounted: false });
         };
         reuseButton.addEventListener("click", reuseHandler);
       }
+
+      if (copyButton instanceof HTMLButtonElement) {
+        copyHandler = async (event) => {
+          event.preventDefault();
+          if (!(handshakeInput instanceof HTMLTextAreaElement)) {
+            return;
+          }
+          const value = handshakeInput.value.trim();
+          if (!value) {
+            return;
+          }
+          let copied = false;
+          if (
+            typeof navigator !== "undefined" &&
+            navigator?.clipboard?.writeText
+          ) {
+            try {
+              await navigator.clipboard.writeText(value);
+              copied = true;
+            } catch (error) {
+              copied = false;
+            }
+          }
+          if (!copied && handshakeInput.select) {
+            try {
+              handshakeInput.select();
+              if (this.document?.execCommand) {
+                copied = this.document.execCommand("copy");
+              }
+            } catch (error) {
+              copied = false;
+            } finally {
+              handshakeInput.setSelectionRange(
+                handshakeInput.value.length,
+                handshakeInput.value.length,
+              );
+            }
+          }
+          if (copied) {
+            setStatus("Connect URI copied to clipboard.", "success");
+          } else {
+            setStatus(
+              "Copy failed. Copy the link manually if needed.",
+              "warning",
+            );
+          }
+        };
+        copyButton.addEventListener("click", copyHandler);
+      }
+
+      if (manualToggle instanceof HTMLButtonElement) {
+        manualToggleHandler = (event) => {
+          event.preventDefault();
+          applyManualMode(!manualMode);
+        };
+        manualToggle.addEventListener("click", manualToggleHandler);
+      }
+
+      if (authOpenButton instanceof HTMLButtonElement) {
+        authOpenHandler = (event) => {
+          event.preventDefault();
+          if (!pendingAuthUrl) {
+            return;
+          }
+          if (this.window && typeof this.window.open === "function") {
+            this.window.open(pendingAuthUrl, "_blank", "noopener,noreferrer");
+          } else if (this.document && this.document.location) {
+            this.document.location.href = pendingAuthUrl;
+          }
+        };
+        authOpenButton.addEventListener("click", authOpenHandler);
+      }
     });
   }
 
@@ -1383,6 +1731,16 @@ export default class LoginModalController {
       });
     } finally {
       this.setLoadingState(providerId, false);
+      if (this.pendingNip46Cleanup) {
+        try {
+          this.pendingNip46Cleanup();
+        } catch (cleanupError) {
+          devLogger.warn(
+            "[LoginModalController] Failed to dispose remote signer form:",
+            cleanupError,
+          );
+        }
+      }
     }
   }
 
diff --git a/js/utils/qrcode.js b/js/utils/qrcode.js
new file mode 100644
index 00000000..21d3ebc3
--- /dev/null
+++ b/js/utils/qrcode.js
@@ -0,0 +1,634 @@
+/**
+ * @fileoverview
+ * - Using the 'QRCode for Javascript library'
+ * - Fixed dataset of 'QRCode for Javascript library' for support full-spec.
+ * - this library has no dependencies.
+ * 
+ * @author davidshimjs
+ * @see <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a>
+ * @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a>
+ */
+var QRCode;
+
+(function () {
+	//---------------------------------------------------------------------
+	// QRCode for JavaScript
+	//
+	// Copyright (c) 2009 Kazuhiko Arase
+	//
+	// URL: http://www.d-project.com/
+	//
+	// Licensed under the MIT license:
+	//   http://www.opensource.org/licenses/mit-license.php
+	//
+	// The word "QR Code" is registered trademark of 
+	// DENSO WAVE INCORPORATED
+	//   http://www.denso-wave.com/qrcode/faqpatent-e.html
+	//
+	//---------------------------------------------------------------------
+	function QR8bitByte(data) {
+		this.mode = QRMode.MODE_8BIT_BYTE;
+		this.data = data;
+		this.parsedData = [];
+
+		// Added to support UTF-8 Characters
+		for (var i = 0, l = this.data.length; i < l; i++) {
+			var byteArray = [];
+			var code = this.data.charCodeAt(i);
+
+			if (code > 0x10000) {
+				byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18);
+				byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12);
+				byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6);
+				byteArray[3] = 0x80 | (code & 0x3F);
+			} else if (code > 0x800) {
+				byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12);
+				byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6);
+				byteArray[2] = 0x80 | (code & 0x3F);
+			} else if (code > 0x80) {
+				byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6);
+				byteArray[1] = 0x80 | (code & 0x3F);
+			} else {
+				byteArray[0] = code;
+			}
+
+			this.parsedData.push(byteArray);
+		}
+
+		this.parsedData = Array.prototype.concat.apply([], this.parsedData);
+
+		if (this.parsedData.length != this.data.length) {
+			this.parsedData.unshift(191);
+			this.parsedData.unshift(187);
+			this.parsedData.unshift(239);
+		}
+	}
+
+	QR8bitByte.prototype = {
+		getLength: function (buffer) {
+			return this.parsedData.length;
+		},
+		write: function (buffer) {
+			for (var i = 0, l = this.parsedData.length; i < l; i++) {
+				buffer.put(this.parsedData[i], 8);
+			}
+		}
+	};
+
+	function QRCodeModel(typeNumber, errorCorrectLevel) {
+		this.typeNumber = typeNumber;
+		this.errorCorrectLevel = errorCorrectLevel;
+		this.modules = null;
+		this.moduleCount = 0;
+		this.dataCache = null;
+		this.dataList = [];
+	}
+
+	QRCodeModel.prototype={addData:function(data){var newData=new QR8bitByte(data);this.dataList.push(newData);this.dataCache=null;},isDark:function(row,col){if(row<0||this.moduleCount<=row||col<0||this.moduleCount<=col){throw new Error(row+","+col);}
+	return this.modules[row][col];},getModuleCount:function(){return this.moduleCount;},make:function(){this.makeImpl(false,this.getBestMaskPattern());},makeImpl:function(test,maskPattern){this.moduleCount=this.typeNumber*4+17;this.modules=new Array(this.moduleCount);for(var row=0;row<this.moduleCount;row++){this.modules[row]=new Array(this.moduleCount);for(var col=0;col<this.moduleCount;col++){this.modules[row][col]=null;}}
+	this.setupPositionProbePattern(0,0);this.setupPositionProbePattern(this.moduleCount-7,0);this.setupPositionProbePattern(0,this.moduleCount-7);this.setupPositionAdjustPattern();this.setupTimingPattern();this.setupTypeInfo(test,maskPattern);if(this.typeNumber>=7){this.setupTypeNumber(test);}
+	if(this.dataCache==null){this.dataCache=QRCodeModel.createData(this.typeNumber,this.errorCorrectLevel,this.dataList);}
+	this.mapData(this.dataCache,maskPattern);},setupPositionProbePattern:function(row,col){for(var r=-1;r<=7;r++){if(row+r<=-1||this.moduleCount<=row+r)continue;for(var c=-1;c<=7;c++){if(col+c<=-1||this.moduleCount<=col+c)continue;if((0<=r&&r<=6&&(c==0||c==6))||(0<=c&&c<=6&&(r==0||r==6))||(2<=r&&r<=4&&2<=c&&c<=4)){this.modules[row+r][col+c]=true;}else{this.modules[row+r][col+c]=false;}}}},getBestMaskPattern:function(){var minLostPoint=0;var pattern=0;for(var i=0;i<8;i++){this.makeImpl(true,i);var lostPoint=QRUtil.getLostPoint(this);if(i==0||minLostPoint>lostPoint){minLostPoint=lostPoint;pattern=i;}}
+	return pattern;},createMovieClip:function(target_mc,instance_name,depth){var qr_mc=target_mc.createEmptyMovieClip(instance_name,depth);var cs=1;this.make();for(var row=0;row<this.modules.length;row++){var y=row*cs;for(var col=0;col<this.modules[row].length;col++){var x=col*cs;var dark=this.modules[row][col];if(dark){qr_mc.beginFill(0,100);qr_mc.moveTo(x,y);qr_mc.lineTo(x+cs,y);qr_mc.lineTo(x+cs,y+cs);qr_mc.lineTo(x,y+cs);qr_mc.endFill();}}}
+	return qr_mc;},setupTimingPattern:function(){for(var r=8;r<this.moduleCount-8;r++){if(this.modules[r][6]!=null){continue;}
+	this.modules[r][6]=(r%2==0);}
+	for(var c=8;c<this.moduleCount-8;c++){if(this.modules[6][c]!=null){continue;}
+	this.modules[6][c]=(c%2==0);}},setupPositionAdjustPattern:function(){var pos=QRUtil.getPatternPosition(this.typeNumber);for(var i=0;i<pos.length;i++){for(var j=0;j<pos.length;j++){var row=pos[i];var col=pos[j];if(this.modules[row][col]!=null){continue;}
+	for(var r=-2;r<=2;r++){for(var c=-2;c<=2;c++){if(r==-2||r==2||c==-2||c==2||(r==0&&c==0)){this.modules[row+r][col+c]=true;}else{this.modules[row+r][col+c]=false;}}}}}},setupTypeNumber:function(test){var bits=QRUtil.getBCHTypeNumber(this.typeNumber);for(var i=0;i<18;i++){var mod=(!test&&((bits>>i)&1)==1);this.modules[Math.floor(i/3)][i%3+this.moduleCount-8-3]=mod;}
+	for(var i=0;i<18;i++){var mod=(!test&&((bits>>i)&1)==1);this.modules[i%3+this.moduleCount-8-3][Math.floor(i/3)]=mod;}},setupTypeInfo:function(test,maskPattern){var data=(this.errorCorrectLevel<<3)|maskPattern;var bits=QRUtil.getBCHTypeInfo(data);for(var i=0;i<15;i++){var mod=(!test&&((bits>>i)&1)==1);if(i<6){this.modules[i][8]=mod;}else if(i<8){this.modules[i+1][8]=mod;}else{this.modules[this.moduleCount-15+i][8]=mod;}}
+	for(var i=0;i<15;i++){var mod=(!test&&((bits>>i)&1)==1);if(i<8){this.modules[8][this.moduleCount-i-1]=mod;}else if(i<9){this.modules[8][15-i-1+1]=mod;}else{this.modules[8][15-i-1]=mod;}}
+	this.modules[this.moduleCount-8][8]=(!test);},mapData:function(data,maskPattern){var inc=-1;var row=this.moduleCount-1;var bitIndex=7;var byteIndex=0;for(var col=this.moduleCount-1;col>0;col-=2){if(col==6)col--;while(true){for(var c=0;c<2;c++){if(this.modules[row][col-c]==null){var dark=false;if(byteIndex<data.length){dark=(((data[byteIndex]>>>bitIndex)&1)==1);}
+	var mask=QRUtil.getMask(maskPattern,row,col-c);if(mask){dark=!dark;}
+	this.modules[row][col-c]=dark;bitIndex--;if(bitIndex==-1){byteIndex++;bitIndex=7;}}}
+	row+=inc;if(row<0||this.moduleCount<=row){row-=inc;inc=-inc;break;}}}}};QRCodeModel.PAD0=0xEC;QRCodeModel.PAD1=0x11;QRCodeModel.createData=function(typeNumber,errorCorrectLevel,dataList){var rsBlocks=QRRSBlock.getRSBlocks(typeNumber,errorCorrectLevel);var buffer=new QRBitBuffer();for(var i=0;i<dataList.length;i++){var data=dataList[i];buffer.put(data.mode,4);buffer.put(data.getLength(),QRUtil.getLengthInBits(data.mode,typeNumber));data.write(buffer);}
+	var totalDataCount=0;for(var i=0;i<rsBlocks.length;i++){totalDataCount+=rsBlocks[i].dataCount;}
+	if(buffer.getLengthInBits()>totalDataCount*8){throw new Error("code length overflow. ("
+	+buffer.getLengthInBits()
+	+">"
+	+totalDataCount*8
+	+")");}
+	if(buffer.getLengthInBits()+4<=totalDataCount*8){buffer.put(0,4);}
+	while(buffer.getLengthInBits()%8!=0){buffer.putBit(false);}
+	while(true){if(buffer.getLengthInBits()>=totalDataCount*8){break;}
+	buffer.put(QRCodeModel.PAD0,8);if(buffer.getLengthInBits()>=totalDataCount*8){break;}
+	buffer.put(QRCodeModel.PAD1,8);}
+	return QRCodeModel.createBytes(buffer,rsBlocks);};QRCodeModel.createBytes=function(buffer,rsBlocks){var offset=0;var maxDcCount=0;var maxEcCount=0;var dcdata=new Array(rsBlocks.length);var ecdata=new Array(rsBlocks.length);for(var r=0;r<rsBlocks.length;r++){var dcCount=rsBlocks[r].dataCount;var ecCount=rsBlocks[r].totalCount-dcCount;maxDcCount=Math.max(maxDcCount,dcCount);maxEcCount=Math.max(maxEcCount,ecCount);dcdata[r]=new Array(dcCount);for(var i=0;i<dcdata[r].length;i++){dcdata[r][i]=0xff&buffer.buffer[i+offset];}
+	offset+=dcCount;var rsPoly=QRUtil.getErrorCorrectPolynomial(ecCount);var rawPoly=new QRPolynomial(dcdata[r],rsPoly.getLength()-1);var modPoly=rawPoly.mod(rsPoly);ecdata[r]=new Array(rsPoly.getLength()-1);for(var i=0;i<ecdata[r].length;i++){var modIndex=i+modPoly.getLength()-ecdata[r].length;ecdata[r][i]=(modIndex>=0)?modPoly.get(modIndex):0;}}
+	var totalCodeCount=0;for(var i=0;i<rsBlocks.length;i++){totalCodeCount+=rsBlocks[i].totalCount;}
+	var data=new Array(totalCodeCount);var index=0;for(var i=0;i<maxDcCount;i++){for(var r=0;r<rsBlocks.length;r++){if(i<dcdata[r].length){data[index++]=dcdata[r][i];}}}
+	for(var i=0;i<maxEcCount;i++){for(var r=0;r<rsBlocks.length;r++){if(i<ecdata[r].length){data[index++]=ecdata[r][i];}}}
+	return data;};var QRMode={MODE_NUMBER:1<<0,MODE_ALPHA_NUM:1<<1,MODE_8BIT_BYTE:1<<2,MODE_KANJI:1<<3};var QRErrorCorrectLevel={L:1,M:0,Q:3,H:2};var QRMaskPattern={PATTERN000:0,PATTERN001:1,PATTERN010:2,PATTERN011:3,PATTERN100:4,PATTERN101:5,PATTERN110:6,PATTERN111:7};var QRUtil={PATTERN_POSITION_TABLE:[[],[6,18],[6,22],[6,26],[6,30],[6,34],[6,22,38],[6,24,42],[6,26,46],[6,28,50],[6,30,54],[6,32,58],[6,34,62],[6,26,46,66],[6,26,48,70],[6,26,50,74],[6,30,54,78],[6,30,56,82],[6,30,58,86],[6,34,62,90],[6,28,50,72,94],[6,26,50,74,98],[6,30,54,78,102],[6,28,54,80,106],[6,32,58,84,110],[6,30,58,86,114],[6,34,62,90,118],[6,26,50,74,98,122],[6,30,54,78,102,126],[6,26,52,78,104,130],[6,30,56,82,108,134],[6,34,60,86,112,138],[6,30,58,86,114,142],[6,34,62,90,118,146],[6,30,54,78,102,126,150],[6,24,50,76,102,128,154],[6,28,54,80,106,132,158],[6,32,58,84,110,136,162],[6,26,54,82,110,138,166],[6,30,58,86,114,142,170]],G15:(1<<10)|(1<<8)|(1<<5)|(1<<4)|(1<<2)|(1<<1)|(1<<0),G18:(1<<12)|(1<<11)|(1<<10)|(1<<9)|(1<<8)|(1<<5)|(1<<2)|(1<<0),G15_MASK:(1<<14)|(1<<12)|(1<<10)|(1<<4)|(1<<1),getBCHTypeInfo:function(data){var d=data<<10;while(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G15)>=0){d^=(QRUtil.G15<<(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G15)));}
+	return((data<<10)|d)^QRUtil.G15_MASK;},getBCHTypeNumber:function(data){var d=data<<12;while(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G18)>=0){d^=(QRUtil.G18<<(QRUtil.getBCHDigit(d)-QRUtil.getBCHDigit(QRUtil.G18)));}
+	return(data<<12)|d;},getBCHDigit:function(data){var digit=0;while(data!=0){digit++;data>>>=1;}
+	return digit;},getPatternPosition:function(typeNumber){return QRUtil.PATTERN_POSITION_TABLE[typeNumber-1];},getMask:function(maskPattern,i,j){switch(maskPattern){case QRMaskPattern.PATTERN000:return(i+j)%2==0;case QRMaskPattern.PATTERN001:return i%2==0;case QRMaskPattern.PATTERN010:return j%3==0;case QRMaskPattern.PATTERN011:return(i+j)%3==0;case QRMaskPattern.PATTERN100:return(Math.floor(i/2)+Math.floor(j/3))%2==0;case QRMaskPattern.PATTERN101:return(i*j)%2+(i*j)%3==0;case QRMaskPattern.PATTERN110:return((i*j)%2+(i*j)%3)%2==0;case QRMaskPattern.PATTERN111:return((i*j)%3+(i+j)%2)%2==0;default:throw new Error("bad maskPattern:"+maskPattern);}},getErrorCorrectPolynomial:function(errorCorrectLength){var a=new QRPolynomial([1],0);for(var i=0;i<errorCorrectLength;i++){a=a.multiply(new QRPolynomial([1,QRMath.gexp(i)],0));}
+	return a;},getLengthInBits:function(mode,type){if(1<=type&&type<10){switch(mode){case QRMode.MODE_NUMBER:return 10;case QRMode.MODE_ALPHA_NUM:return 9;case QRMode.MODE_8BIT_BYTE:return 8;case QRMode.MODE_KANJI:return 8;default:throw new Error("mode:"+mode);}}else if(type<27){switch(mode){case QRMode.MODE_NUMBER:return 12;case QRMode.MODE_ALPHA_NUM:return 11;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 10;default:throw new Error("mode:"+mode);}}else if(type<41){switch(mode){case QRMode.MODE_NUMBER:return 14;case QRMode.MODE_ALPHA_NUM:return 13;case QRMode.MODE_8BIT_BYTE:return 16;case QRMode.MODE_KANJI:return 12;default:throw new Error("mode:"+mode);}}else{throw new Error("type:"+type);}},getLostPoint:function(qrCode){var moduleCount=qrCode.getModuleCount();var lostPoint=0;for(var row=0;row<moduleCount;row++){for(var col=0;col<moduleCount;col++){var sameCount=0;var dark=qrCode.isDark(row,col);for(var r=-1;r<=1;r++){if(row+r<0||moduleCount<=row+r){continue;}
+	for(var c=-1;c<=1;c++){if(col+c<0||moduleCount<=col+c){continue;}
+	if(r==0&&c==0){continue;}
+	if(dark==qrCode.isDark(row+r,col+c)){sameCount++;}}}
+	if(sameCount>5){lostPoint+=(3+sameCount-5);}}}
+	for(var row=0;row<moduleCount-1;row++){for(var col=0;col<moduleCount-1;col++){var count=0;if(qrCode.isDark(row,col))count++;if(qrCode.isDark(row+1,col))count++;if(qrCode.isDark(row,col+1))count++;if(qrCode.isDark(row+1,col+1))count++;if(count==0||count==4){lostPoint+=3;}}}
+	for(var row=0;row<moduleCount;row++){for(var col=0;col<moduleCount-6;col++){if(qrCode.isDark(row,col)&&!qrCode.isDark(row,col+1)&&qrCode.isDark(row,col+2)&&qrCode.isDark(row,col+3)&&qrCode.isDark(row,col+4)&&!qrCode.isDark(row,col+5)&&qrCode.isDark(row,col+6)){lostPoint+=40;}}}
+	for(var col=0;col<moduleCount;col++){for(var row=0;row<moduleCount-6;row++){if(qrCode.isDark(row,col)&&!qrCode.isDark(row+1,col)&&qrCode.isDark(row+2,col)&&qrCode.isDark(row+3,col)&&qrCode.isDark(row+4,col)&&!qrCode.isDark(row+5,col)&&qrCode.isDark(row+6,col)){lostPoint+=40;}}}
+	var darkCount=0;for(var col=0;col<moduleCount;col++){for(var row=0;row<moduleCount;row++){if(qrCode.isDark(row,col)){darkCount++;}}}
+	var ratio=Math.abs(100*darkCount/moduleCount/moduleCount-50)/5;lostPoint+=ratio*10;return lostPoint;}};var QRMath={glog:function(n){if(n<1){throw new Error("glog("+n+")");}
+	return QRMath.LOG_TABLE[n];},gexp:function(n){while(n<0){n+=255;}
+	while(n>=256){n-=255;}
+	return QRMath.EXP_TABLE[n];},EXP_TABLE:new Array(256),LOG_TABLE:new Array(256)};for(var i=0;i<8;i++){QRMath.EXP_TABLE[i]=1<<i;}
+	for(var i=8;i<256;i++){QRMath.EXP_TABLE[i]=QRMath.EXP_TABLE[i-4]^QRMath.EXP_TABLE[i-5]^QRMath.EXP_TABLE[i-6]^QRMath.EXP_TABLE[i-8];}
+	for(var i=0;i<255;i++){QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]]=i;}
+	function QRPolynomial(num,shift){if(num.length==undefined){throw new Error(num.length+"/"+shift);}
+	var offset=0;while(offset<num.length&&num[offset]==0){offset++;}
+	this.num=new Array(num.length-offset+shift);for(var i=0;i<num.length-offset;i++){this.num[i]=num[i+offset];}}
+	QRPolynomial.prototype={get:function(index){return this.num[index];},getLength:function(){return this.num.length;},multiply:function(e){var num=new Array(this.getLength()+e.getLength()-1);for(var i=0;i<this.getLength();i++){for(var j=0;j<e.getLength();j++){num[i+j]^=QRMath.gexp(QRMath.glog(this.get(i))+QRMath.glog(e.get(j)));}}
+	return new QRPolynomial(num,0);},mod:function(e){if(this.getLength()-e.getLength()<0){return this;}
+	var ratio=QRMath.glog(this.get(0))-QRMath.glog(e.get(0));var num=new Array(this.getLength());for(var i=0;i<this.getLength();i++){num[i]=this.get(i);}
+	for(var i=0;i<e.getLength();i++){num[i]^=QRMath.gexp(QRMath.glog(e.get(i))+ratio);}
+	return new QRPolynomial(num,0).mod(e);}};function QRRSBlock(totalCount,dataCount){this.totalCount=totalCount;this.dataCount=dataCount;}
+	QRRSBlock.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]];QRRSBlock.getRSBlocks=function(typeNumber,errorCorrectLevel){var rsBlock=QRRSBlock.getRsBlockTable(typeNumber,errorCorrectLevel);if(rsBlock==undefined){throw new Error("bad rs block @ typeNumber:"+typeNumber+"/errorCorrectLevel:"+errorCorrectLevel);}
+	var length=rsBlock.length/3;var list=[];for(var i=0;i<length;i++){var count=rsBlock[i*3+0];var totalCount=rsBlock[i*3+1];var dataCount=rsBlock[i*3+2];for(var j=0;j<count;j++){list.push(new QRRSBlock(totalCount,dataCount));}}
+	return list;};QRRSBlock.getRsBlockTable=function(typeNumber,errorCorrectLevel){switch(errorCorrectLevel){case QRErrorCorrectLevel.L:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+0];case QRErrorCorrectLevel.M:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+1];case QRErrorCorrectLevel.Q:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+2];case QRErrorCorrectLevel.H:return QRRSBlock.RS_BLOCK_TABLE[(typeNumber-1)*4+3];default:return undefined;}};function QRBitBuffer(){this.buffer=[];this.length=0;}
+	QRBitBuffer.prototype={get:function(index){var bufIndex=Math.floor(index/8);return((this.buffer[bufIndex]>>>(7-index%8))&1)==1;},put:function(num,length){for(var i=0;i<length;i++){this.putBit(((num>>>(length-i-1))&1)==1);}},getLengthInBits:function(){return this.length;},putBit:function(bit){var bufIndex=Math.floor(this.length/8);if(this.buffer.length<=bufIndex){this.buffer.push(0);}
+	if(bit){this.buffer[bufIndex]|=(0x80>>>(this.length%8));}
+	this.length++;}};var QRCodeLimitLength=[[17,14,11,7],[32,26,20,14],[53,42,32,24],[78,62,46,34],[106,84,60,44],[134,106,74,58],[154,122,86,64],[192,152,108,84],[230,180,130,98],[271,213,151,119],[321,251,177,137],[367,287,203,155],[425,331,241,177],[458,362,258,194],[520,412,292,220],[586,450,322,250],[644,504,364,280],[718,560,394,310],[792,624,442,338],[858,666,482,382],[929,711,509,403],[1003,779,565,439],[1091,857,611,461],[1171,911,661,511],[1273,997,715,535],[1367,1059,751,593],[1465,1125,805,625],[1528,1190,868,658],[1628,1264,908,698],[1732,1370,982,742],[1840,1452,1030,790],[1952,1538,1112,842],[2068,1628,1168,898],[2188,1722,1228,958],[2303,1809,1283,983],[2431,1911,1351,1051],[2563,1989,1423,1093],[2699,2099,1499,1139],[2809,2213,1579,1219],[2953,2331,1663,1273]];
+	
+	function _isSupportCanvas() {
+		return typeof CanvasRenderingContext2D != "undefined";
+	}
+	
+	// android 2.x doesn't support Data-URI spec
+	function _getAndroid() {
+		var android = false;
+		var sAgent = navigator.userAgent;
+		
+		if (/android/i.test(sAgent)) { // android
+			android = true;
+			var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i);
+			
+			if (aMat && aMat[1]) {
+				android = parseFloat(aMat[1]);
+			}
+		}
+		
+		return android;
+	}
+	
+	var svgDrawer = (function() {
+
+		var Drawing = function (el, htOption) {
+			this._el = el;
+			this._htOption = htOption;
+		};
+
+		Drawing.prototype.draw = function (oQRCode) {
+			var _htOption = this._htOption;
+			var _el = this._el;
+			var nCount = oQRCode.getModuleCount();
+			var nWidth = Math.floor(_htOption.width / nCount);
+			var nHeight = Math.floor(_htOption.height / nCount);
+
+			this.clear();
+
+			function makeSVG(tag, attrs) {
+				var el = document.createElementNS('http://www.w3.org/2000/svg', tag);
+				for (var k in attrs)
+					if (attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]);
+				return el;
+			}
+
+			var svg = makeSVG("svg" , {'viewBox': '0 0 ' + String(nCount) + " " + String(nCount), 'width': '100%', 'height': '100%', 'fill': _htOption.colorLight});
+			svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink");
+			_el.appendChild(svg);
+
+			svg.appendChild(makeSVG("rect", {"fill": _htOption.colorLight, "width": "100%", "height": "100%"}));
+			svg.appendChild(makeSVG("rect", {"fill": _htOption.colorDark, "width": "1", "height": "1", "id": "template"}));
+
+			for (var row = 0; row < nCount; row++) {
+				for (var col = 0; col < nCount; col++) {
+					if (oQRCode.isDark(row, col)) {
+						var child = makeSVG("use", {"x": String(col), "y": String(row)});
+						child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template")
+						svg.appendChild(child);
+					}
+				}
+			}
+		};
+		Drawing.prototype.clear = function () {
+			while (this._el.hasChildNodes())
+				this._el.removeChild(this._el.lastChild);
+		};
+		return Drawing;
+	})();
+
+	var useSVG = document.documentElement.tagName.toLowerCase() === "svg";
+
+	// Drawing in DOM by using Table tag
+	var Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function () {
+		var Drawing = function (el, htOption) {
+			this._el = el;
+			this._htOption = htOption;
+		};
+			
+		/**
+		 * Draw the QRCode
+		 * 
+		 * @param {QRCode} oQRCode
+		 */
+		Drawing.prototype.draw = function (oQRCode) {
+            var _htOption = this._htOption;
+            var _el = this._el;
+			var nCount = oQRCode.getModuleCount();
+			var nWidth = Math.floor(_htOption.width / nCount);
+			var nHeight = Math.floor(_htOption.height / nCount);
+			var aHTML = ['<table style="border:0;border-collapse:collapse;">'];
+			
+			for (var row = 0; row < nCount; row++) {
+				aHTML.push('<tr>');
+				
+				for (var col = 0; col < nCount; col++) {
+					aHTML.push('<td style="border:0;border-collapse:collapse;padding:0;margin:0;width:' + nWidth + 'px;height:' + nHeight + 'px;background-color:' + (oQRCode.isDark(row, col) ? _htOption.colorDark : _htOption.colorLight) + ';"></td>');
+				}
+				
+				aHTML.push('</tr>');
+			}
+			
+			aHTML.push('</table>');
+			_el.innerHTML = aHTML.join('');
+			
+			// Fix the margin values as real size.
+			var elTable = _el.childNodes[0];
+			var nLeftMarginTable = (_htOption.width - elTable.offsetWidth) / 2;
+			var nTopMarginTable = (_htOption.height - elTable.offsetHeight) / 2;
+			
+			if (nLeftMarginTable > 0 && nTopMarginTable > 0) {
+				elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px";	
+			}
+		};
+		
+		/**
+		 * Clear the QRCode
+		 */
+		Drawing.prototype.clear = function () {
+			this._el.innerHTML = '';
+		};
+		
+		return Drawing;
+	})() : (function () { // Drawing in Canvas
+		function _onMakeImage() {
+			this._elImage.src = this._elCanvas.toDataURL("image/png");
+			this._elImage.style.display = "block";
+			this._elCanvas.style.display = "none";			
+		}
+		
+		// Android 2.1 bug workaround
+		// http://code.google.com/p/android/issues/detail?id=5141
+		if (this._android && this._android <= 2.1) {
+	    	var factor = 1 / window.devicePixelRatio;
+	        var drawImage = CanvasRenderingContext2D.prototype.drawImage; 
+	    	CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) {
+	    		if (("nodeName" in image) && /img/i.test(image.nodeName)) {
+		        	for (var i = arguments.length - 1; i >= 1; i--) {
+		            	arguments[i] = arguments[i] * factor;
+		        	}
+	    		} else if (typeof dw == "undefined") {
+	    			arguments[1] *= factor;
+	    			arguments[2] *= factor;
+	    			arguments[3] *= factor;
+	    			arguments[4] *= factor;
+	    		}
+	    		
+	        	drawImage.apply(this, arguments); 
+	    	};
+		}
+		
+		/**
+		 * Check whether the user's browser supports Data URI or not
+		 * 
+		 * @private
+		 * @param {Function} fSuccess Occurs if it supports Data URI
+		 * @param {Function} fFail Occurs if it doesn't support Data URI
+		 */
+		function _safeSetDataURI(fSuccess, fFail) {
+            var self = this;
+            self._fFail = fFail;
+            self._fSuccess = fSuccess;
+
+            // Check it just once
+            if (self._bSupportDataURI === null) {
+                var el = document.createElement("img");
+                var fOnError = function() {
+                    self._bSupportDataURI = false;
+
+                    if (self._fFail) {
+                        self._fFail.call(self);
+                    }
+                };
+                var fOnSuccess = function() {
+                    self._bSupportDataURI = true;
+
+                    if (self._fSuccess) {
+                        self._fSuccess.call(self);
+                    }
+                };
+
+                el.onabort = fOnError;
+                el.onerror = fOnError;
+                el.onload = fOnSuccess;
+                el.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="; // the Image contains 1px data.
+                return;
+            } else if (self._bSupportDataURI === true && self._fSuccess) {
+                self._fSuccess.call(self);
+            } else if (self._bSupportDataURI === false && self._fFail) {
+                self._fFail.call(self);
+            }
+		};
+		
+		/**
+		 * Drawing QRCode by using canvas
+		 * 
+		 * @constructor
+		 * @param {HTMLElement} el
+		 * @param {Object} htOption QRCode Options 
+		 */
+		var Drawing = function (el, htOption) {
+    		this._bIsPainted = false;
+    		this._android = _getAndroid();
+		
+			this._htOption = htOption;
+			this._elCanvas = document.createElement("canvas");
+			this._elCanvas.width = htOption.width;
+			this._elCanvas.height = htOption.height;
+			el.appendChild(this._elCanvas);
+			this._el = el;
+			this._oContext = this._elCanvas.getContext("2d");
+			this._bIsPainted = false;
+			this._elImage = document.createElement("img");
+			this._elImage.alt = "Scan me!";
+			this._elImage.style.display = "none";
+			this._el.appendChild(this._elImage);
+			this._bSupportDataURI = null;
+		};
+			
+		/**
+		 * Draw the QRCode
+		 * 
+		 * @param {QRCode} oQRCode 
+		 */
+		Drawing.prototype.draw = function (oQRCode) {
+            var _elImage = this._elImage;
+            var _oContext = this._oContext;
+            var _htOption = this._htOption;
+            
+			var nCount = oQRCode.getModuleCount();
+			var nWidth = _htOption.width / nCount;
+			var nHeight = _htOption.height / nCount;
+			var nRoundedWidth = Math.round(nWidth);
+			var nRoundedHeight = Math.round(nHeight);
+
+			_elImage.style.display = "none";
+			this.clear();
+			
+			for (var row = 0; row < nCount; row++) {
+				for (var col = 0; col < nCount; col++) {
+					var bIsDark = oQRCode.isDark(row, col);
+					var nLeft = col * nWidth;
+					var nTop = row * nHeight;
+					_oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
+					_oContext.lineWidth = 1;
+					_oContext.fillStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;					
+					_oContext.fillRect(nLeft, nTop, nWidth, nHeight);
+					
+					// 안티 앨리어싱 방지 처리
+					_oContext.strokeRect(
+						Math.floor(nLeft) + 0.5,
+						Math.floor(nTop) + 0.5,
+						nRoundedWidth,
+						nRoundedHeight
+					);
+					
+					_oContext.strokeRect(
+						Math.ceil(nLeft) - 0.5,
+						Math.ceil(nTop) - 0.5,
+						nRoundedWidth,
+						nRoundedHeight
+					);
+				}
+			}
+			
+			this._bIsPainted = true;
+		};
+			
+		/**
+		 * Make the image from Canvas if the browser supports Data URI.
+		 */
+		Drawing.prototype.makeImage = function () {
+			if (this._bIsPainted) {
+				_safeSetDataURI.call(this, _onMakeImage);
+			}
+		};
+			
+		/**
+		 * Return whether the QRCode is painted or not
+		 * 
+		 * @return {Boolean}
+		 */
+		Drawing.prototype.isPainted = function () {
+			return this._bIsPainted;
+		};
+		
+		/**
+		 * Clear the QRCode
+		 */
+		Drawing.prototype.clear = function () {
+			this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height);
+			this._bIsPainted = false;
+		};
+		
+		/**
+		 * @private
+		 * @param {Number} nNumber
+		 */
+		Drawing.prototype.round = function (nNumber) {
+			if (!nNumber) {
+				return nNumber;
+			}
+			
+			return Math.floor(nNumber * 1000) / 1000;
+		};
+		
+		return Drawing;
+	})();
+	
+	/**
+	 * Get the type by string length
+	 * 
+	 * @private
+	 * @param {String} sText
+	 * @param {Number} nCorrectLevel
+	 * @return {Number} type
+	 */
+	function _getTypeNumber(sText, nCorrectLevel) {			
+		var nType = 1;
+		var length = _getUTF8Length(sText);
+		
+		for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {
+			var nLimit = 0;
+			
+			switch (nCorrectLevel) {
+				case QRErrorCorrectLevel.L :
+					nLimit = QRCodeLimitLength[i][0];
+					break;
+				case QRErrorCorrectLevel.M :
+					nLimit = QRCodeLimitLength[i][1];
+					break;
+				case QRErrorCorrectLevel.Q :
+					nLimit = QRCodeLimitLength[i][2];
+					break;
+				case QRErrorCorrectLevel.H :
+					nLimit = QRCodeLimitLength[i][3];
+					break;
+			}
+			
+			if (length <= nLimit) {
+				break;
+			} else {
+				nType++;
+			}
+		}
+		
+		if (nType > QRCodeLimitLength.length) {
+			throw new Error("Too long data");
+		}
+		
+		return nType;
+	}
+
+	function _getUTF8Length(sText) {
+		var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
+		return replacedText.length + (replacedText.length != sText ? 3 : 0);
+	}
+	
+	/**
+	 * @class QRCode
+	 * @constructor
+	 * @example 
+	 * new QRCode(document.getElementById("test"), "http://jindo.dev.naver.com/collie");
+	 *
+	 * @example
+	 * var oQRCode = new QRCode("test", {
+	 *    text : "http://naver.com",
+	 *    width : 128,
+	 *    height : 128
+	 * });
+	 * 
+	 * oQRCode.clear(); // Clear the QRCode.
+	 * oQRCode.makeCode("http://map.naver.com"); // Re-create the QRCode.
+	 *
+	 * @param {HTMLElement|String} el target element or 'id' attribute of element.
+	 * @param {Object|String} vOption
+	 * @param {String} vOption.text QRCode link data
+	 * @param {Number} [vOption.width=256]
+	 * @param {Number} [vOption.height=256]
+	 * @param {String} [vOption.colorDark="#000000"]
+	 * @param {String} [vOption.colorLight="#ffffff"]
+	 * @param {QRCode.CorrectLevel} [vOption.correctLevel=QRCode.CorrectLevel.H] [L|M|Q|H] 
+	 */
+	QRCode = function (el, vOption) {
+		this._htOption = {
+			width : 256, 
+			height : 256,
+			typeNumber : 4,
+			colorDark : "#000000",
+			colorLight : "#ffffff",
+			correctLevel : QRErrorCorrectLevel.H
+		};
+		
+		if (typeof vOption === 'string') {
+			vOption	= {
+				text : vOption
+			};
+		}
+		
+		// Overwrites options
+		if (vOption) {
+			for (var i in vOption) {
+				this._htOption[i] = vOption[i];
+			}
+		}
+		
+		if (typeof el == "string") {
+			el = document.getElementById(el);
+		}
+
+		if (this._htOption.useSVG) {
+			Drawing = svgDrawer;
+		}
+		
+		this._android = _getAndroid();
+		this._el = el;
+		this._oQRCode = null;
+		this._oDrawing = new Drawing(this._el, this._htOption);
+		
+		if (this._htOption.text) {
+			this.makeCode(this._htOption.text);	
+		}
+	};
+	
+	/**
+	 * Make the QRCode
+	 * 
+	 * @param {String} sText link data
+	 */
+	QRCode.prototype.makeCode = function (sText) {
+		this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel);
+		this._oQRCode.addData(sText);
+		this._oQRCode.make();
+		this._el.title = sText;
+		this._oDrawing.draw(this._oQRCode);			
+		this.makeImage();
+	};
+	
+	/**
+	 * Make the Image from Canvas element
+	 * - It occurs automatically
+	 * - Android below 3 doesn't support Data-URI spec.
+	 * 
+	 * @private
+	 */
+	QRCode.prototype.makeImage = function () {
+		if (typeof this._oDrawing.makeImage == "function" && (!this._android || this._android >= 3)) {
+			this._oDrawing.makeImage();
+		}
+	};
+	
+	/**
+	 * Clear the QRCode
+	 */
+	QRCode.prototype.clear = function () {
+		this._oDrawing.clear();
+	};
+	
+	/**
+	 * @name QRCode.CorrectLevel
+	 */
+	QRCode.CorrectLevel = QRErrorCorrectLevel;
+})();
+
+export { QRCode };
+
+export function createQrCode(element, options = {}) {
+  return new QRCode(element, options);
+}
+
+export function renderQrCode(element, text, options = {}) {
+  const normalizedOptions = Object.assign({}, options, { text });
+  const instance = new QRCode(element, normalizedOptions);
+  return instance;
+}
+
+export function updateQrCode(instance, text) {
+  if (!instance || typeof instance.makeCode !== "function") {
+    throw new Error("Invalid QRCode instance");
+  }
+  instance.makeCode(text);
+  return instance;
+}