9f4f71fabe
## Summary
* **What is the goal of this PR?** Adds WiFi Access Point (AP) mode
support for File Transfer, allowing the device to create its own WiFi
network that users can connect to directly - useful when no existing
WiFi network is available. And in my experience is faster when the
device is right next to your laptop (but maybe further from your wifi)
* **What changes are included?**
- New `NetworkModeSelectionActivity` - an interstitial screen asking
users to choose between:
- "Join a Network" - connects to an existing WiFi network (existing
behavior)
- "Create Hotspot" - creates a WiFi access point named
"CrossPoint-Reader"
- Modified `CrossPointWebServerActivity` to:
- Launch the network mode selection screen before proceeding
- Support starting an Access Point with mDNS (`crosspoint.local`) and
DNS server for captive portal behavior
- Display appropriate connection info for both modes
- Modified `CrossPointWebServer` to support starting when WiFi is in AP
mode (not just STA connected mode)
## Additional Context
* **AP Mode Details**: The device creates an open WiFi network named
"CrossPoint-Reader". Once connected, users can access the file transfer
page at `http://crosspoint.local/` or `http://192.168.4.1/`
* **DNS Captive Portal**: A DNS server redirects all domain requests to
the device's IP, enabling captive portal behavior on some devices
* **mDNS**: Hostname resolution via `crosspoint.local` is enabled for
both AP and STA modes
* **No breaking changes**: The "Join a Network" option preserves the
existing WiFi connection flow
* **Memory impact**: Minimal - the AP mode uses roughly the same
resources as STA mode
57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
#pragma once
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#include <WebServer.h>
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#include <vector>
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// Structure to hold file information
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struct FileInfo {
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String name;
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size_t size;
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bool isEpub;
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bool isDirectory;
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};
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class CrossPointWebServer {
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public:
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CrossPointWebServer();
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~CrossPointWebServer();
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// Start the web server (call after WiFi is connected)
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void begin();
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// Stop the web server
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void stop();
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// Call this periodically to handle client requests
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void handleClient() const;
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// Check if server is running
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bool isRunning() const { return running; }
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// Get the port number
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uint16_t getPort() const { return port; }
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private:
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std::unique_ptr<WebServer> server = nullptr;
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bool running = false;
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bool apMode = false; // true when running in AP mode, false for STA mode
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uint16_t port = 80;
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// File scanning
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void scanFiles(const char* path, const std::function<void(FileInfo)>& callback) const;
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String formatFileSize(size_t bytes) const;
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bool isEpubFile(const String& filename) const;
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// Request handlers
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void handleRoot() const;
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void handleNotFound() const;
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void handleStatus() const;
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void handleFileList() const;
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void handleFileListData() const;
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void handleUpload() const;
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void handleUploadPost() const;
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void handleCreateFolder() const;
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void handleDelete() const;
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};
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