cgi.c

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#include "cgi.h"
 
#include <stdio.h>
 
#include "lwip/apps/httpd.h"
#include "pico/cyw43_arch.h"
#include "hardware/adc.h"
 
#include "light_state.h"
#include "blink.h"
 
const char* cgi_onboard_led_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling onboard LED request\n");
    for (int i = 0; i < iNumParams; ++i)
    {
        if (!strcmp(pcParam[i], "toggle"))
        {
            printf("Toggling onboard LED\n");
            cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, !cyw43_arch_gpio_get(CYW43_WL_GPIO_LED_PIN));
            break;
        }
        else if (!strcmp(pcParam[i], "on"))
        {
            printf("Turning onboard LED on\n");
            cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
            break;
        }
        else if (!strcmp(pcParam[i], "off"))
        {
            printf("Turning onboard LED off\n");
            cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
            break;
        }
    }
    return "/index.html";
}
 
const char* cgi_led_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling LED request\n");
    for (int i = 0; i < iNumParams; ++i)
    {
        if (!strcmp(pcParam[i], "toggle"))
        {
            printf("Toggling LED strip\n");
            if (light_state.state == false && light_state.brightness == 0)
                light_state.brightness = light_state.previous_brightness;
            toggle_light_state();
            break;
        }
        else if (!strcmp(pcParam[i], "on"))
        {
            printf("Turning LED strip on\n");
            light_state.state = true;
            break;
        }
        else if (!strcmp(pcParam[i], "off"))
        {
            printf("Turning LED strip off\n");
            light_state.state = false;
            turn_off_all(NUM_PIXELS);
            break;
        }
    }
    return "/index.html";
}
 
const char* cgi_led_mode_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling mode request\n");
    for (int i = 0; i < iNumParams; ++i)
    {
        if (!strcmp(pcParam[i], "rainbow-wheel"))
        {
            printf("Setting rainbow wheel mode\n");
            light_state.state = true;
            set_light_mode(MODE_RAINBOW_WHEEL);
            break;
        }
        else if (!strcmp(pcParam[i], "rainbow-cycle"))
        {
            printf("Setting rainbow cycle mode\n");
            light_state.state = true;
            set_light_mode(MODE_RAINBOW_CYCLE);
            break;
        }
        else if (!strcmp(pcParam[i], "static"))
        {
            printf("Setting static mode\n");
            light_state.state = true;
            set_light_mode(MODE_STATIC);
            break;
        }
        else if (!strcmp(pcParam[i], "breathing"))
        {
            printf("Setting breathing mode\n");
            light_state.state = true;
            set_light_mode(MODE_BREATHING);
            break;
        }
        else if (!strcmp(pcParam[i], "flashing"))
        {
            printf("Setting flashing mode\n");
            light_state.state = true;
            set_light_mode(MODE_FLASHING);
            break;
        }
        else if (!strcmp(pcParam[i], "loading"))
        {
            printf("Setting loading mode\n");
            light_state.state = true;
            set_light_mode(MODE_LOADING);
            break;
        }
        else if (!strcmp(pcParam[i], "wave"))
        {
            printf("Setting wave mode\n");
            light_state.state = true;
            set_light_mode(MODE_WAVE);
            break;
        }
        else if (!strcmp(pcParam[i], "fade"))
        {
            printf("Setting fade mode\n");
            light_state.state = true;
            set_light_mode(MODE_FADE);
            break;
        }
    }
    return "/index.html";
}
 
const char* cgi_led_color_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling color request\n");
    for (int i = 0; i < iNumParams; ++i)
    {
        if (!strcmp(pcParam[i], "red"))
        {
            printf("Setting red mode\n");
            light_state.state = true;
            set_light_color(COLOR_RED);
            break;
        }
        else if (!strcmp(pcParam[i], "green"))
        {
            printf("Setting green mode\n");
            light_state.state = true;
            set_light_color(COLOR_GREEN);
            break;
        }
        else if (!strcmp(pcParam[i], "blue"))
        {
            printf("Setting blue mode\n");
            light_state.state = true;
            set_light_color(COLOR_BLUE);
            break;
        }
        else if (!strcmp(pcParam[i], "cyan"))
        {
            printf("Setting cyan mode\n");
            light_state.state = true;
            set_light_color(COLOR_CYAN);
            break;
        }
        else if (!strcmp(pcParam[i], "yellow"))
        {
            printf("Setting yellow mode\n");
            light_state.state = true;
            set_light_color(COLOR_YELLOW);
            break;
        }
        else if (!strcmp(pcParam[i], "magenta"))
        {
            printf("Setting magenta mode\n");
            light_state.state = true;
            set_light_color(COLOR_MAGENTA);
            break;
        }
        else if (!strcmp(pcParam[i], "purple"))
        {
            printf("Setting purple mode\n");
            light_state.state = true;
            set_light_color(COLOR_PURPLE);
            break;
        }
        else if (!strcmp(pcParam[i], "pink"))
        {
            printf("Setting pink mode\n");
            light_state.state = true;
            set_light_color(COLOR_PINK);
            break;
        }
        else if (!strcmp(pcParam[i], "orange"))
        {
            printf("Setting orange mode\n");
            light_state.state = true;
            set_light_color(COLOR_ORANGE);
            break;
        }
        else if (!strcmp(pcParam[i], "turquoise"))
        {
            printf("Setting turquoise mode\n");
            light_state.state = true;
            set_light_color(COLOR_TURQUOISE);
            break;
        }
        else if (!strcmp(pcParam[i], "white"))
        {
            printf("Setting white mode\n");
            light_state.state = true;
            set_light_color(COLOR_WHITE);
            break;
        }
    }
    return "/index.html";
}
 
const char* cgi_led_brightness_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling brightness request\n");
    for (int i = 0; i < iNumParams; ++i)
    {
        int brightness = atoi(pcParam[i]);
        if (brightness < 0 || brightness > 100)
            printf("Invalid brightness value\n");
        else
        {
            printf("Setting brightness to %d\n", brightness);
            int scaled_brightness = 0;
            if (brightness <= 0)
            {
                light_state.state = false;
                light_state.brightness = 0;
                turn_off_all(NUM_PIXELS);
            }
            else if (brightness == 100)
            {
                scaled_brightness = 255;
                light_state.state = true;
                light_state.brightness = light_state.previous_brightness = scaled_brightness;
            }
            else
            {
                scaled_brightness = (int)(brightness * 255.0 / 100.0) + 1;
                if (scaled_brightness > 255)
                    scaled_brightness = 255;
                light_state.state = true;
                light_state.brightness = light_state.previous_brightness = scaled_brightness;
            }
        }
        if (light_state.light_mode == MODE_STATIC)
            set_light_color(light_state.color);
    }
    return "/index.html";
}
 
const char* cgi_favicon_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling favicon request\n");
    return "/favicon.ico";
}
 
const char* cgi_m_icon_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling m.png\n");
    return "/m.png";
}
 
const char* cgi_manifest_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling manifest request\n");
    return "/manifest.json";
}
 
const char* cgi_data_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling data request\n");
    return "/data.shtml";
}
 
const char* cgi_timestamp_handler(int iIndex, int iNumParams, char* pcParam[], char* pcValue[])
{
    printf("Handling start timestamp request\n");
    return "/timestamp.shtml";
}
 
void cgi_init()
{
    http_set_cgi_handlers(cgi_handlers, LWIP_ARRAYSIZE(cgi_handlers));
}