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Sudo-Ivan
2025-05-28 21:42:11 -05:00
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config/
__pycache__/

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FROM python:3.13-alpine
# Install build dependencies for cryptography
RUN apk add --no-cache gcc musl-dev libffi-dev openssl-dev
# Upgrade pip and install application dependencies
RUN pip install --upgrade pip \
&& pip install --no-cache-dir "flet>=0.28.3,<0.29.0" "rns>=0.9.6,<0.10.0" "pydantic>=1.10,<2.0"
# Copy application source
WORKDIR /app
COPY . /app
# Expose the web port
EXPOSE 8550
# Run the web version of Ren Browser
CMD ["python3", "-u", "-m", "ren_browser.app", "--web", "--port", "8550"]

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LICENSE Normal file
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MIT License
Copyright (c) 2025 Sudo-Ivan
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# Ren Browser
A browser for the Reticulum Network. Work-in-progress.
## Development
**Requirements**
- Python 3.13+
- Flet
- Reticulum 0.9.6+
**Setup**
```bash
poetry install
```
### Desktop
```bash
poetry run ren-browser-dev
```
### Web
```bash
poetry run ren-browser-web-dev
```
### Mobile
**Android**
```bash
poetry run ren-browser-android-dev
```
**iOS**
```bash
poetry run ren-browser-ios-dev
```
### Docker/Podman
```bash
docker build -t ren-browser .
docker run -p 8550:8550 ren-browser
```

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31
pyproject.toml Normal file
View File

@@ -0,0 +1,31 @@
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ren-browser = "ren_browser.app:run"
ren-browser-web = "ren_browser.app:web"
ren-browser-android = "ren_browser.app:android"
ren-browser-ios = "ren_browser.app:ios"
ren-browser-dev = "ren_browser.app:run_dev"
ren-browser-web-dev = "ren_browser.app:web_dev"
ren-browser-android-dev = "ren_browser.app:android_dev"
ren-browser-ios-dev = "ren_browser.app:ios_dev"
[tool.poetry.group.dev.dependencies]
ruff = "^0.11.11"

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import RNS
import time
from dataclasses import dataclass
from typing import Optional, List
@dataclass
class Announce:
destination_hash: str
display_name: Optional[str]
timestamp: int
class AnnounceService:
"""
Service to listen for Reticulum announces and collect them.
Calls update_callback whenever a new announce is received.
"""
def __init__(self, update_callback):
# Accept all announce aspects
self.aspect_filter = "nomadnetwork.node"
self.receive_path_responses = True
self.announces: List[Announce] = []
self.update_callback = update_callback
# Initialize Reticulum transport once
try:
RNS.Reticulum()
except OSError:
# Already initialized
pass
# Register self as announce handler
RNS.Transport.register_announce_handler(self)
def received_announce(self, destination_hash, announced_identity, app_data):
# Called by RNS when an announce is received
ts = int(time.time())
display_name = None
if app_data:
try:
display_name = app_data.decode("utf-8")
except:
pass
announce = Announce(destination_hash.hex(), display_name, ts)
# Deduplicate and move announce to top
# Remove any existing announces with same destination_hash
self.announces = [ann for ann in self.announces if ann.destination_hash != announce.destination_hash]
# Insert new announce at front of list
self.announces.insert(0, announce)
# Notify UI of new announce
if self.update_callback:
self.update_callback(self.announces)
def get_announces(self) -> List[Announce]:
"""Return collected announces."""
return self.announces

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import flet as ft
from flet import Page, AppView
import argparse
import subprocess
import sys
from ren_browser.ui.ui import build_ui
# Current renderer name
RENDERER = "plaintext"
async def main(page: Page):
# Build the main UI layout
build_ui(page)
def run():
global RENDERER
parser = argparse.ArgumentParser(description="Ren Browser")
parser.add_argument("-r", "--renderer", choices=["plaintext", "micron"], default=RENDERER, help="Select renderer (plaintext or micron)")
parser.add_argument("-w", "--web", action="store_true", help="Launch in web browser mode")
parser.add_argument("-p", "--port", type=int, default=None, help="Port for web server")
args = parser.parse_args()
RENDERER = args.renderer
if args.web:
# Run web mode on optional fixed port
if args.port is not None:
ft.app(main, view=AppView.WEB_BROWSER, port=args.port)
else:
ft.app(main, view=AppView.WEB_BROWSER)
else:
ft.app(main)
if __name__ == "__main__":
run()
def web():
"""Launch Ren Browser in web mode via Flet CLI."""
rc = subprocess.call(["flet", "run", "ren_browser/app.py", "--web"])
sys.exit(rc)
def android():
"""Launch Ren Browser in Android mode via Flet CLI."""
rc = subprocess.call(["flet", "run", "ren_browser/app.py", "--android"])
sys.exit(rc)
def ios():
"""Launch Ren Browser in iOS mode via Flet CLI."""
rc = subprocess.call(["flet", "run", "ren_browser/app.py", "--ios"])
sys.exit(rc)
# Hot reload (dev) mode entrypoints
def run_dev():
"""Launch Ren Browser in desktop mode via Flet CLI with hot reload."""
rc = subprocess.call(["flet", "run", "-d", "-r", "ren_browser/app.py"])
sys.exit(rc)
def web_dev():
"""Launch Ren Browser in web mode via Flet CLI with hot reload."""
rc = subprocess.call(["flet", "run", "--web", "-d", "-r", "ren_browser/app.py"])
sys.exit(rc)
def android_dev():
"""Launch Ren Browser in Android mode via Flet CLI with hot reload."""
rc = subprocess.call(["flet", "run", "--android", "-d", "-r", "ren_browser/app.py"])
sys.exit(rc)
def ios_dev():
"""Launch Ren Browser in iOS mode via Flet CLI with hot reload."""
rc = subprocess.call(["flet", "run", "--ios", "-d", "-r", "ren_browser/app.py"])
sys.exit(rc)

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from typing import Optional, Dict
from pydantic import BaseModel
import os, time, threading
import RNS
class PageRequest(BaseModel):
destination_hash: str
page_path: str
field_data: Optional[Dict] = None
class PageFetcher:
"""
Fetcher to download pages from the Reticulum network.
"""
def __init__(self):
# Initialize Reticulum with default config (singleton)
try:
RNS.Reticulum()
except OSError:
# Already initialized
pass
def fetch_page(self, req: PageRequest) -> str:
"""
Download page content for the given PageRequest.
Placeholder implementation: replace with real network logic.
"""
# Establish path and identity
dest_bytes = bytes.fromhex(req.destination_hash)
# Request path if needed, with timeout
if not RNS.Transport.has_path(dest_bytes):
RNS.Transport.request_path(dest_bytes)
start = time.time()
# Wait up to 30 seconds for path discovery
while not RNS.Transport.has_path(dest_bytes):
if time.time() - start > 30:
raise Exception(f"No path to destination {req.destination_hash}")
time.sleep(0.1)
# Recall identity
identity = RNS.Identity.recall(dest_bytes)
if not identity:
raise Exception('Identity not found')
# Create client destination and announce so the server learns our path
destination = RNS.Destination(
identity,
RNS.Destination.OUT,
RNS.Destination.SINGLE,
'nomadnetwork',
'node',
)
link = RNS.Link(destination)
# Prepare sync fetch
result = {'data': None}
ev = threading.Event()
def on_response(receipt):
data = receipt.response
if isinstance(data, bytes):
result['data'] = data.decode('utf-8')
else:
result['data'] = str(data)
ev.set()
def on_failed(_):
ev.set()
# Set up request on link establishment
link.set_link_established_callback(
lambda l: l.request(req.page_path, req.field_data, response_callback=on_response, failed_callback=on_failed)
)
# Wait for response or timeout
ev.wait(timeout=15)
return result['data'] or 'No content received'

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# Add a profiler to the browser.

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ren_browser/renderer/__init__.py Normal file
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ren_browser/renderer/micron/__init__.py Normal file
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import flet as ft
def render_micron(content: str) -> ft.Control:
"""
Render micron markup content to a Flet control placeholder.
Currently displays raw content.
"""
return ft.Text(
content,
selectable=True,
font_family="monospace",
expand=True,
)

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import flet as ft
def render_plaintext(content: str) -> ft.Control:
"""
Fallback plaintext renderer: displays raw text safely in a monospace, selectable control.
"""
# Use monospace font and make text selectable
return ft.Text(
content,
selectable=True,
font_family="monospace",
expand=True,
)

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# Add storage system/management, eg handling downloading files, saving bookmarks, caching, tabs and history.

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import flet as ft
from types import SimpleNamespace
from ren_browser.renderer.plaintext.plaintext import render_plaintext
from ren_browser.renderer.micron.micron import render_micron
class TabsManager:
def __init__(self, page: ft.Page):
import ren_browser.app as app_module
self.page = page
# State: list of tabs and current index
self.manager = SimpleNamespace(tabs=[], index=0)
# UI components
self.tab_bar = ft.Row(spacing=4)
self.content_container = ft.Container(expand=True)
# Initialize with default "Home" tab only, using selected renderer
default_content = render_micron("Welcome to Ren Browser") if app_module.RENDERER == "micron" else render_plaintext("Welcome to Ren Browser")
self._add_tab_internal("Home", default_content)
# Action buttons
self.add_btn = ft.IconButton(ft.Icons.ADD, tooltip="New Tab", on_click=self._on_add_click)
self.close_btn = ft.IconButton(ft.Icons.CLOSE, tooltip="Close Tab", on_click=self._on_close_click)
# Append add and close buttons
self.tab_bar.controls.extend([self.add_btn, self.close_btn])
# Select the first tab
self.select_tab(0)
def _add_tab_internal(self, title: str, content: ft.Control):
idx = len(self.manager.tabs)
# Create per-tab URL bar and GO button
url_field = ft.TextField(label="URL", value=title, expand=True)
go_btn = ft.IconButton(ft.Icons.OPEN_IN_BROWSER, tooltip="Load URL", on_click=lambda e, i=idx: self._on_tab_go(e, i))
# Wrap the content in a Column: URL bar + initial content
content_control = content
tab_content = ft.Column(
expand=True,
controls=[
ft.Row([url_field, go_btn]),
content_control,
],
)
# Store tab data
self.manager.tabs.append({
"title": title,
"url_field": url_field,
"content_control": content_control,
"content": tab_content,
})
# Create stylable tab button container
btn = ft.Container(
content=ft.Text(title),
on_click=lambda e, i=idx: self.select_tab(i),
padding=ft.padding.symmetric(horizontal=12, vertical=6),
border_radius=5,
bgcolor=ft.Colors.SURFACE_CONTAINER_HIGHEST,
)
# Insert before the add and close buttons
insert_pos = max(0, len(self.tab_bar.controls) - 2)
self.tab_bar.controls.insert(insert_pos, btn)
def _on_add_click(self, e):
title = f"Tab {len(self.manager.tabs) + 1}"
# Render new tab content based on selected renderer
content_text = f"Content for {title}"
import ren_browser.app as app_module
content = render_micron(content_text) if app_module.RENDERER == "micron" else render_plaintext(content_text)
self._add_tab_internal(title, content)
# Select the new tab
self.select_tab(len(self.manager.tabs) - 1)
self.page.update()
def _on_close_click(self, e):
# Do not allow closing all tabs
if len(self.manager.tabs) <= 1:
return
idx = self.manager.index
# Remove tab data and button
self.manager.tabs.pop(idx)
self.tab_bar.controls.pop(idx)
# Reassign on_click handlers to correct indices
for i, control in enumerate(self.tab_bar.controls[:-2]):
control.on_click = lambda e, i=i: self.select_tab(i)
# Adjust selected index
new_idx = min(idx, len(self.manager.tabs) - 1)
self.select_tab(new_idx)
self.page.update()
def select_tab(self, idx: int):
self.manager.index = idx
# Highlight active tab and dim others
for i, control in enumerate(self.tab_bar.controls[:-2]):
if i == idx:
control.bgcolor = ft.Colors.PRIMARY_CONTAINER
else:
control.bgcolor = ft.Colors.SURFACE_CONTAINER_HIGHEST
# Update displayed content
self.content_container.content = self.manager.tabs[idx]["content"]
self.page.update()
def _on_tab_go(self, e, idx: int):
"""Handle loading a new URL in a specific tab (placeholder logic)."""
tab = self.manager.tabs[idx]
url = tab["url_field"].value.strip()
if not url:
return
# Placeholder: update the content_control using selected renderer
placeholder_text = f"Loading content for {url}"
import ren_browser.app as app_module
new_control = render_micron(placeholder_text) if app_module.RENDERER == "micron" else render_plaintext(placeholder_text)
tab["content_control"] = new_control
tab["content"].controls[1] = new_control
# Refresh the displayed content if this tab is active
if self.manager.index == idx:
self.content_container.content = tab["content"]
self.page.update()

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import flet as ft
from flet import Page
from ren_browser.tabs.tabs import TabsManager
from ren_browser.renderer.plaintext.plaintext import render_plaintext
from ren_browser.renderer.micron.micron import render_micron
from ren_browser.announces.announces import AnnounceService
from ren_browser.pages.page_request import PageFetcher, PageRequest
def build_ui(page: Page):
import ren_browser.app as app_module
# Page properties
page.title = "Ren Browser"
page.theme_mode = ft.ThemeMode.DARK
page.appbar = ft.AppBar(title=ft.Text("Ren Browser"))
page.padding = 20
page.window_width = 800
page.window_height = 600
# Initialize page fetcher and announce service
page_fetcher = PageFetcher()
# Sidebar announces list in a scrollable ListView within a NavigationDrawer
announce_list = ft.ListView(expand=True, spacing=1)
def update_announces(ann_list):
announce_list.controls.clear()
for ann in ann_list:
label = ann.display_name or ann.destination_hash
# Use display_name for tab title, fallback to "Anonymous"; set URL bar to full path
def on_click_ann(e, dest=ann.destination_hash, disp=ann.display_name):
title = disp or "Anonymous"
# Full URL including page path
full_url = f"{dest}:/page/index.mu"
placeholder = render_plaintext(f"Fetching content for {full_url}")
tab_manager._add_tab_internal(title, placeholder)
idx = len(tab_manager.manager.tabs) - 1
# Set URL bar to full URL
tab = tab_manager.manager.tabs[idx]
tab["url_field"].value = full_url
# Select the new tab and refresh UI
tab_manager.select_tab(idx)
page.update()
def fetch_and_update():
req = PageRequest(destination_hash=dest, page_path="/page/index.mu")
try:
result = page_fetcher.fetch_page(req)
except Exception as ex:
result = f"Error: {ex}"
tab = tab_manager.manager.tabs[idx]
# Use micron renderer for .mu pages, fallback to plaintext
if req.page_path.endswith(".mu"):
new_control = render_micron(result)
else:
new_control = render_plaintext(result)
tab["content_control"] = new_control
# Replace the content control in the tab's column
tab["content"].controls[1] = new_control
if tab_manager.manager.index == idx:
tab_manager.content_container.content = tab["content"]
page.update()
page.run_thread(fetch_and_update)
announce_list.controls.append(ft.TextButton(label, on_click=on_click_ann))
page.update()
AnnounceService(update_callback=update_announces)
# Make sidebar collapsible via drawer
page.drawer = ft.NavigationDrawer(
controls=[
ft.Text("Announcements", weight=ft.FontWeight.BOLD),
ft.Divider(),
announce_list,
],
)
# Add hamburger button to toggle drawer
page.appbar.leading = ft.IconButton(
ft.Icons.MENU,
tooltip="Toggle sidebar",
on_click=lambda e: (setattr(page.drawer, 'open', not page.drawer.open), page.update()),
)
# Dynamic tabs manager for pages
tab_manager = TabsManager(page)
# Main area: tab bar and content
main_area = ft.Column(
expand=True,
controls=[
tab_manager.tab_bar,
tab_manager.content_container,
],
)
# Layout: main content only (sidebar in drawer)
layout = ft.Row(expand=True, controls=[main_area])
# Render main layout with status
page.add(
ft.Column(
expand=True,
controls=[
layout,
ft.Row(
[
ft.Text(
f"Renderer: {app_module.RENDERER}",
color=ft.Colors.GREY,
size=12,
),
],
alignment=ft.MainAxisAlignment.END,
),
],
),
)