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+// flipper_http.h
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+#ifndef FLIPPER_HTTP_H
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+#define FLIPPER_HTTP_H
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+
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+#include <furi.h>
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+#include <furi_hal.h>
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+#include <furi_hal_gpio.h>
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+#include <furi_hal_serial.h>
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+#include <storage/storage.h>
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+
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+// STORAGE_EXT_PATH_PREFIX is defined in the Furi SDK as /ext
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+
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+#define HTTP_TAG "FlipLibrary" // change this to your app name
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+#define http_tag "flip_library" // change this to your app id
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+#define UART_CH (FuriHalSerialIdUsart) // UART channel
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+#define TIMEOUT_DURATION_TICKS (5 * 1000) // 5 seconds
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+#define BAUDRATE (115200) // UART baudrate
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+#define RX_BUF_SIZE 1024 // UART RX buffer size
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+#define RX_LINE_BUFFER_SIZE 4096 // UART RX line buffer size (increase for large responses)
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+#define MAX_FILE_SHOW 4096 // Maximum data from file to show
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+#define FILE_BUFFER_SIZE 512 // File buffer size
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+
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+// Forward declaration for callback
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+typedef void (*FlipperHTTP_Callback)(const char* line, void* context);
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+
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+// State variable to track the UART state
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+typedef enum {
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+ INACTIVE, // Inactive state
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+ IDLE, // Default state
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+ RECEIVING, // Receiving data
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+ SENDING, // Sending data
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+ ISSUE, // Issue with connection
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+} SerialState;
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+
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+// Event Flags for UART Worker Thread
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+typedef enum {
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+ WorkerEvtStop = (1 << 0),
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+ WorkerEvtRxDone = (1 << 1),
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+} WorkerEvtFlags;
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+
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+// FlipperHTTP Structure
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+typedef struct {
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+ FuriStreamBuffer* flipper_http_stream; // Stream buffer for UART communication
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+ FuriHalSerialHandle* serial_handle; // Serial handle for UART communication
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+ FuriThread* rx_thread; // Worker thread for UART
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+ FuriThreadId rx_thread_id; // Worker thread ID
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+ FlipperHTTP_Callback handle_rx_line_cb; // Callback for received lines
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+ void* callback_context; // Context for the callback
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+ SerialState state; // State of the UART
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+
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+ // variable to store the last received data from the UART
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+ char* last_response;
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+ char file_path[256]; // Path to save the received data
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+
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+ // Timer-related members
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+ FuriTimer* get_timeout_timer; // Timer for HTTP request timeout
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+
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+ bool started_receiving_get; // Indicates if a GET request has started
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+ bool just_started_get; // Indicates if GET data reception has just started
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+
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+ bool started_receiving_post; // Indicates if a POST request has started
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+ bool just_started_post; // Indicates if POST data reception has just started
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+
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+ bool started_receiving_put; // Indicates if a PUT request has started
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+ bool just_started_put; // Indicates if PUT data reception has just started
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+
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+ bool started_receiving_delete; // Indicates if a DELETE request has started
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+ bool just_started_delete; // Indicates if DELETE data reception has just started
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+
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+ // Buffer to hold the raw bytes received from the UART
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+ uint8_t* received_bytes;
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+ size_t received_bytes_len; // Length of the received bytes
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+ bool is_bytes_request; // Flag to indicate if the request is for bytes
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+ bool save_bytes; // Flag to save the received data to a file
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+ bool save_received_data; // Flag to save the received data to a file
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+} FlipperHTTP;
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+
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+extern FlipperHTTP fhttp;
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+// Global static array for the line buffer
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+extern char rx_line_buffer[RX_LINE_BUFFER_SIZE];
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+extern uint8_t file_buffer[FILE_BUFFER_SIZE];
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+
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+// fhttp.last_response holds the last received data from the UART
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+
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+// Function to append received data to file
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+// make sure to initialize the file path before calling this function
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+bool flipper_http_append_to_file(
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+ const void* data,
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+ size_t data_size,
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+ bool start_new_file,
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+ char* file_path);
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+
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+FuriString* flipper_http_load_from_file(char* file_path);
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+
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+// UART worker thread
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+/**
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+ * @brief Worker thread to handle UART data asynchronously.
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+ * @return 0
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+ * @param context The context to pass to the callback.
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+ * @note This function will handle received data asynchronously via the callback.
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+ */
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+// UART worker thread
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+int32_t flipper_http_worker(void* context);
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+
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+// Timer callback function
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+/**
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+ * @brief Callback function for the GET timeout timer.
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+ * @return 0
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+ * @param context The context to pass to the callback.
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+ * @note This function will be called when the GET request times out.
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+ */
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+void get_timeout_timer_callback(void* context);
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+
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+// UART RX Handler Callback (Interrupt Context)
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+/**
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+ * @brief A private callback function to handle received data asynchronously.
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+ * @return void
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+ * @param handle The UART handle.
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+ * @param event The event type.
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+ * @param context The context to pass to the callback.
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+ * @note This function will handle received data asynchronously via the callback.
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+ */
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+void _flipper_http_rx_callback(
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+ FuriHalSerialHandle* handle,
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+ FuriHalSerialRxEvent event,
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+ void* context);
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+
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+// UART initialization function
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+/**
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+ * @brief Initialize UART.
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+ * @return true if the UART was initialized successfully, false otherwise.
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+ * @param callback The callback function to handle received data (ex. flipper_http_rx_callback).
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+ * @param context The context to pass to the callback.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_init(FlipperHTTP_Callback callback, void* context);
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+
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+// Deinitialize UART
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+/**
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+ * @brief Deinitialize UART.
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+ * @return void
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+ * @note This function will stop the asynchronous RX, release the serial handle, and free the resources.
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+ */
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+void flipper_http_deinit();
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+
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+// Function to send data over UART with newline termination
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+/**
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+ * @brief Send data over UART with newline termination.
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+ * @return true if the data was sent successfully, false otherwise.
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+ * @param data The data to send over UART.
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+ * @note The data will be sent over UART with a newline character appended.
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+ */
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+bool flipper_http_send_data(const char* data);
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+
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+// Function to send a PING request
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+/**
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+ * @brief Send a PING request to check if the Wifi Dev Board is connected.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ * @note This is best used to check if the Wifi Dev Board is connected.
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+ * @note The state will remain INACTIVE until a PONG is received.
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+ */
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+bool flipper_http_ping();
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+
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+// Function to list available commands
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+/**
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+ * @brief Send a command to list available commands.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_list_commands();
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+
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+// Function to turn on the LED
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+/**
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+ * @brief Allow the LED to display while processing.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_led_on();
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+
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+// Function to turn off the LED
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+/**
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+ * @brief Disable the LED from displaying while processing.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_led_off();
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+
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+// Function to parse JSON data
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+/**
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+ * @brief Parse JSON data.
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+ * @return true if the JSON data was parsed successfully, false otherwise.
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+ * @param key The key to parse from the JSON data.
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+ * @param json_data The JSON data to parse.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_parse_json(const char* key, const char* json_data);
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+
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+// Function to parse JSON array data
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+/**
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+ * @brief Parse JSON array data.
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+ * @return true if the JSON array data was parsed successfully, false otherwise.
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+ * @param key The key to parse from the JSON array data.
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+ * @param index The index to parse from the JSON array data.
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+ * @param json_data The JSON array data to parse.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_parse_json_array(const char* key, int index, const char* json_data);
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+
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+// Function to scan for WiFi networks
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+/**
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+ * @brief Send a command to scan for WiFi networks.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_scan_wifi();
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+
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+// Function to save WiFi settings (returns true if successful)
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+/**
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+ * @brief Send a command to save WiFi settings.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_save_wifi(const char* ssid, const char* password);
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+
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+// Function to get IP address of WiFi Devboard
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+/**
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+ * @brief Send a command to get the IP address of the WiFi Devboard
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_ip_address();
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+
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+// Function to get IP address of the connected WiFi network
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+/**
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+ * @brief Send a command to get the IP address of the connected WiFi network.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_ip_wifi();
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+
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+// Function to disconnect from WiFi (returns true if successful)
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+/**
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+ * @brief Send a command to disconnect from WiFi.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_disconnect_wifi();
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+
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+// Function to connect to WiFi (returns true if successful)
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+/**
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+ * @brief Send a command to connect to WiFi.
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+ * @return true if the request was successful, false otherwise.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_connect_wifi();
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+
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+// Function to send a GET request
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+/**
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+ * @brief Send a GET request to the specified URL.
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+ * @return true if the request was successful, false otherwise.
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+ * @param url The URL to send the GET request to.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_get_request(const char* url);
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+
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+// Function to send a GET request with headers
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+/**
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+ * @brief Send a GET request to the specified URL.
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+ * @return true if the request was successful, false otherwise.
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+ * @param url The URL to send the GET request to.
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+ * @param headers The headers to send with the GET request.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_get_request_with_headers(const char* url, const char* headers);
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+
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+// Function to send a GET request with headers and return bytes
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+/**
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+ * @brief Send a GET request to the specified URL.
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+ * @return true if the request was successful, false otherwise.
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+ * @param url The URL to send the GET request to.
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+ * @param headers The headers to send with the GET request.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_get_request_bytes(const char* url, const char* headers);
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+
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+// Function to send a POST request with headers
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+/**
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+ * @brief Send a POST request to the specified URL.
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+ * @return true if the request was successful, false otherwise.
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+ * @param url The URL to send the POST request to.
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+ * @param headers The headers to send with the POST request.
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+ * @param data The data to send with the POST request.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_post_request_with_headers(
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+ const char* url,
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+ const char* headers,
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+ const char* payload);
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+
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+// Function to send a POST request with headers and return bytes
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+/**
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+ * @brief Send a POST request to the specified URL.
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+ * @return true if the request was successful, false otherwise.
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+ * @param url The URL to send the POST request to.
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+ * @param headers The headers to send with the POST request.
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+ * @param payload The data to send with the POST request.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_post_request_bytes(const char* url, const char* headers, const char* payload);
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+
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+// Function to send a PUT request with headers
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+/**
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+ * @brief Send a PUT request to the specified URL.
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+ * @return true if the request was successful, false otherwise.
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+ * @param url The URL to send the PUT request to.
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+ * @param headers The headers to send with the PUT request.
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+ * @param data The data to send with the PUT request.
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+ * @note The received data will be handled asynchronously via the callback.
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+ */
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+bool flipper_http_put_request_with_headers(
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+ const char* url,
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+ const char* headers,
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+ const char* payload);
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+
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+// Function to send a DELETE request with headers
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+/**
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+ * @brief Send a DELETE request to the specified URL.
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+ * @return true if the request was successful, false otherwise.
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+ * @param url The URL to send the DELETE request to.
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+ * @param headers The headers to send with the DELETE request.
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+ * @param data The data to send with the DELETE request.
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+ * @note The received data will be handled asynchronously via the callback.
|
|
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|
|
+ */
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|
+bool flipper_http_delete_request_with_headers(
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+ const char* url,
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|
+ const char* headers,
|
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|
+ const char* payload);
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+
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+// Function to handle received data asynchronously
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+/**
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+ * @brief Callback function to handle received data asynchronously.
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+ * @return void
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+ * @param line The received line.
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+ * @param context The context passed to the callback.
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+ * @note The received data will be handled asynchronously via the callback and handles the state of the UART.
|
|
|
|
|
+ */
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|
|
+void flipper_http_rx_callback(const char* line, void* context);
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+
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|
+// Function to trim leading and trailing spaces and newlines from a constant string
|
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|
|
+char* trim(const char* str);
|
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|
+/**
|
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|
+ * @brief Process requests and parse JSON data asynchronously
|
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|
|
+ * @param http_request The function to send the request
|
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|
|
+ * @param parse_json The function to parse the JSON
|
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|
+ * @return true if successful, false otherwise
|
|
|
|
|
+ */
|
|
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|
|
+bool flipper_http_process_response_async(bool (*http_request)(void), bool (*parse_json)(void));
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|
+
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|
|
+#endif // FLIPPER_HTTP_H
|