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msnmsg

#PennAppsXXIV

A recreation of old school messenger programs like MSN messenger or AOL messenger.

screenshot of the program

Table of Contents

Inspiration

MSN Messenger and AOL messenger

What it does

A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.

How we built it

We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.

Challenges we ran into

  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server

Accomplishments that we're proud of

We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.

What we learned

We learned how to us gRPC, ASP.NET, and MAUI.

What's next for msnmsg

We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.

About

#pennappsxxiv

Resources

Readme
MIT license
Activity

Stars

1 star

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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msnmsg
#PennAppsXXIV
A recreation of old school messenger programs like MSN messenger or AOL messenger.
screenshot of the program
Table of Contents
Inspiration
MSN Messenger and AOL messenger
What it does
A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.
How we built it
We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.
Challenges we ran into
  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server
Accomplishments that we're proud of
We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.
What we learned
We learned how to us gRPC, ASP.NET, and MAUI.
What's next for msnmsg
We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.
About
#pennappsxxiv
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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msnmsg
#PennAppsXXIV
A recreation of old school messenger programs like MSN messenger or AOL messenger.
screenshot of the program
Table of Contents
Inspiration
MSN Messenger and AOL messenger
What it does
A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.
How we built it
We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.
Challenges we ran into
  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server
Accomplishments that we're proud of
We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.
What we learned
We learned how to us gRPC, ASP.NET, and MAUI.
What's next for msnmsg
We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.
About
#pennappsxxiv
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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msnmsg
#PennAppsXXIV
A recreation of old school messenger programs like MSN messenger or AOL messenger.
screenshot of the program
Table of Contents
Inspiration
MSN Messenger and AOL messenger
What it does
A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.
How we built it
We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.
Challenges we ran into
  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server
Accomplishments that we're proud of
We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.
What we learned
We learned how to us gRPC, ASP.NET, and MAUI.
What's next for msnmsg
We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.
About
#pennappsxxiv
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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BranchesTags
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msnmsg
#PennAppsXXIV
A recreation of old school messenger programs like MSN messenger or AOL messenger.
screenshot of the program
Table of Contents
Inspiration
MSN Messenger and AOL messenger
What it does
A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.
How we built it
We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.
Challenges we ran into
  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server
Accomplishments that we're proud of
We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.
What we learned
We learned how to us gRPC, ASP.NET, and MAUI.
What's next for msnmsg
We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.
About
#pennappsxxiv
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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BranchesTags
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msnmsg
#PennAppsXXIV
A recreation of old school messenger programs like MSN messenger or AOL messenger.
screenshot of the program
Table of Contents
Inspiration
MSN Messenger and AOL messenger
What it does
A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.
How we built it
We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.
Challenges we ran into
  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server
Accomplishments that we're proud of
We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.
What we learned
We learned how to us gRPC, ASP.NET, and MAUI.
What's next for msnmsg
We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.
About
#pennappsxxiv
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
msnmsg
#PennAppsXXIV
A recreation of old school messenger programs like MSN messenger or AOL messenger.
screenshot of the program
Table of Contents
Inspiration
MSN Messenger and AOL messenger
What it does
A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.
How we built it
We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.
Challenges we ran into
  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server
Accomplishments that we're proud of
We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.
What we learned
We learned how to us gRPC, ASP.NET, and MAUI.
What's next for msnmsg
We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.
About
#pennappsxxiv
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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msnmsg
#PennAppsXXIV
A recreation of old school messenger programs like MSN messenger or AOL messenger.
screenshot of the program
Table of Contents
Inspiration
MSN Messenger and AOL messenger
What it does
A messaging app where you can easily talk to friends. Just open the app, and you're instantly able to talk to them.
How we built it
We built this app using C#, ASP.NET, MAUI, and gRPC. There are two parts to the program, an ASP.NET server that receives messages and sends them to other users. The other part of this program is the client, written using MAUI. It allows users to send and receive messages easily, abstracting away the technical details.
Challenges we ran into
  • We had issues getting the protocol buffers and services to generate definitions
  • We had a lot of trouble creating a MAUI project in .NET, because there's a lot of conflicting information online about it
  • We had trouble debugging exceptions because sometimes they wouldn't be printed to the console
  • We had problems with connecting gRPC to the ASP.NET server
Accomplishments that we're proud of
We are very proud that we finished this project before the deadline. We faced many challenges and at some points we had no idea if it was going to work or not. We created a distributed architecture where a very large number of clients could connect to the server and start chatting.
What we learned
We learned how to us gRPC, ASP.NET, and MAUI.
What's next for msnmsg
We plan to create msnmsg mobile apps for both iOS and Android. We also plan to add a Twilio integration for authentication via SMS messages.
About
#pennappsxxiv
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Used by
Contributors
Languages