dhanushmsr/secure-file-transmissions

Purpose and Entry Points

This is a Python web application centered on a “transmission system” workflow, with distinct sender, receiver, administrator, feedback, and history views. The primary application entry point is app.py; deployment process startup is likely represented by procfile. Python dependencies are declared in requirements.txt.

Application and Request Boundary

app.py is the central control boundary: it likely initializes the web runtime, defines routes, accepts user actions, coordinates persistence, and renders the HTML views. Browser-facing assets and server-rendered templates are separated into:

• templates/

• static/

• app.py

Role-Oriented User Flows

The UI is organized around explicit operational roles:

• Sender workflow: templates/sender.html

• Receiver workflow: templates/receiver.html

• Administrative workflow: templates/admin.html

• Authentication entry: templates/login.html

A typical control flow is browser request → route in app.py → database/file interaction → template render or redirect. Sender and receiver pages are the primary domain boundary; administrative access is a separate management boundary.

Persistence and Historical Records

The repository includes a local SQLite database, transmission_system.db, which is the material persistence layer for application state. Historical/audit-oriented views are distinct from active workflows:

• templates/history.html

• templates/admin_history.html

• transmission_system.db

This suggests history is exposed differently to ordinary users and administrators, with app.py mediating authorization and record retrieval.

File/Audio Handling

The application has a server-side upload area at static/uploads/, containing an example WAV file:

• static/uploads/file_example_WAV_1MG1.wav

• static/uploads/

This indicates transmitted or processed artifacts may include audio files. The important boundary is between user-originated file content, application handling in app.py, and publicly served static storage. Upload validation, naming, and access control are therefore architecturally sensitive responsibilities.

Feedback and Presentation Layer

Feedback is a first-class interaction path through templates/feedback.html, likely allowing users to submit or review transmission-related comments. Shared visual styling is served from:

• static/css/style.css

• templates/feedback.html

The application is server-rendered rather than a separate frontend service: templates, static content, runtime logic, uploads, and SQLite persistence are co-located in one deployable unit.

Runtime and Infrastructure

Material runtime/infrastructure elements are:

• Python application process: app.py

• Dependency environment: requirements.txt

• Process deployment declaration: procfile

• Local relational persistence: transmission_system.db

• Static file serving/upload storage: static/

No external API, queue, cloud service, or separate worker process is evidenced by the repository tree.