*
* This simple web server read the site's pages from SD card, and manage
* the cases where SD is not present or page not found, using embedded pages.
- * Quering from browser the /status page, the server return a json dictionary where are store
- * some board status info, like board temperature, up-time, etc.
+ * Quering from browser some cgi page, the server return a json dictionary.
*/
+#include "hw/hw_http.h"
#include "hw/hw_sd.h"
#include "hw/hw_adc.h"
#include "hw/hw_sdram.h"
+// Define logging setting (for cfg/log.h module).
+#define LOG_LEVEL 3
+#define LOG_VERBOSITY 0
+#include <cfg/log.h>
#include <cfg/debug.h>
#include <cpu/irq.h>
#include <kern/proc.h>
#include <kern/monitor.h>
+#include <net/http.h>
+
#include <netif/ethernetif.h>
#include <lwip/ip.h>
static struct ip_addr ipaddr, netmask, gw;
static struct netif netif;
-// SD fat filesystem context
-static Sd sd;
-static FATFS fs;
-static FatFile in_file;
-
typedef struct BoardStatus
{
char local_ip[sizeof("123.123.123.123")];
char last_connected_ip[sizeof("123.123.123.123")];
uint16_t internal_temp;
- ticks_t up_time;
+ uint32_t up_time;
size_t tot_req;
} BoardStatus;
static BoardStatus status;
+
static void init(void)
{
/* Enable all the interrupts */
}
}
-static void get_fileName(char *revc_buf, char *name, size_t len)
+/* Macro to unpack the ip addres from lwip format */
+#define IP_ADDR_TO_INT_TUPLE(addr) \
+ (int)((addr) >> 0 & 0xff), \
+ (int)((addr) >> 8 & 0xff), \
+ (int)((addr) >> 16 & 0xff), \
+ (int)((addr) >> 24 & 0xff)
+
+
+static uint8_t tx_buf[2048];
+
+/*
+ * Return a JSON string of board status.
+ */
+static int cgi_status(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
{
- char *p = strstr(revc_buf, "GET");
- if (p)
- {
- //skip the "/" in get string request
- p += sizeof("GET") + 1;
- for (size_t i = 0; *p != ' '; i++,p++)
- {
- if (i > len)
- break;
- name[i] = *p;
- }
- }
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
+
+ //Update board status.
+ sprintf(status.last_connected_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->remote_ip.addr));
+ sprintf(status.local_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->local_ip.addr));
+ sprintf((char *)tx_buf, "[ \"%s\", \"%s\", %d.%d, %ld, %d ]", status.local_ip, status.last_connected_ip,
+ status.internal_temp / 10, status.internal_temp % 10,
+ status.up_time, status.tot_req);
+
+ status.tot_req++;
+
+ http_sendOk(client);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
}
-static const char http_html_hdr_200[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n";
-static const char http_html_hdr_404[] = "HTTP/1.1 404 Not Found\r\nContent-type: text/html\r\n\r\n";
+static int cgi_logo(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
-static const char http_file_not_found[] = "\
-<!DOCTYPE html PUBLIC \"-//IETF//DTD HTML 2.0//EN\"> \
-<html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=ISO-8859-1\"> \
-<title>404 Not Found</title></head><body><img src=\"bertos_logo_jpg.jpg\"><h1>404 Not Found</h1>\
-<p>The requested URL was not found on this server.</p><hr>\
-<address>BeRTOS simple HTTP server</address></body></html>";
+ http_sendOk(client);
+ netconn_write(client, bertos_logo_jpg, bertos_logo_jpg_len, NETCONN_NOCOPY);
+ return 0;
+}
+/*
+ * Return the internal micro temperature string.
+ */
+static int cgi_temp(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
-static const char http_sd_not_present[] = " \
-<!DOCTYPE html PUBLIC \"-//IETF//DTD HTML 2.0//EN\"> \
-<html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=ISO-8859-1\"> \
-<title>BeRTOS simple HTTP Server</title></head><body><img src=\"bertos_logo_jpg.jpg\"> \
-<h1>BeRTOS simple HTTP Server</h1><p>Simple Http server, the site's pages are stored on SD card, check it if is present.</p><hr>\
-<a href=\"http://www.bertos.org\">www.BeRTOS.org</a></body></html> \
-";
+ sprintf((char *)tx_buf, "[%d.%d]", status.internal_temp / 10, status.internal_temp % 10);
-static uint8_t tx_buf[2048];
+ http_sendOk(client);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
-#define IP_ADDR_TO_INT_TUPLE(addr) \
- (int)((addr) >> 0 & 0xff), \
- (int)((addr) >> 8 & 0xff), \
- (int)((addr) >> 16 & 0xff), \
- (int)((addr) >> 24 & 0xff)
+/*
+ * Return the board uptime.
+ */
+static int cgi_uptime(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
-static char file_name[80];
-int main(void)
+
+
+ uint32_t m = status.up_time / 60;
+ uint32_t h = m / 60;
+ uint32_t s = status.up_time - (m * 60) - (h * 3600);
+
+ sprintf((char *)tx_buf, "[\"%ldh %ldm %lds\"]", h, m, s);
+
+ http_sendOk(client);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
+
+/*
+ * Return the VR1 potentiometer voltage.
+ */
+static int cgi_resistor(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
{
- struct netconn *server;
- FRESULT result;
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
- /* Hardware initialization */
- init();
+ uint16_t volt = ADC_RANGECONV(adc_read(1), 0, 3300);
+ sprintf((char *)tx_buf, "[ \"%d.%dV\" ]", volt / 1000, volt % 1000);
- proc_new(status_process, NULL, KERN_MINSTACKSIZE * 2, NULL);
+ http_sendOk(client);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
- dhcp_start(&netif);
- while (!netif.ip_addr.addr)
- timer_delay(DHCP_FINE_TIMER_MSECS);
- kprintf("dhcp ok: ip = %d.%d.%d.%d\n", IP_ADDR_TO_INT_TUPLE(netif.ip_addr.addr));
+/*
+ * Reply to client the request string.
+ */
+static int cgi_led(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)name;
- server = netconn_new(NETCONN_TCP);
- netconn_bind(server, IP_ADDR_ANY, 80);
- netconn_listen(server);
+ http_sendOk(client);
+ netconn_write(client, revc_buf, revc_len, NETCONN_COPY);
+ return 0;
+}
- while (1)
+/*
+ * Reply to client the request string.
+ */
+static int cgi_echo(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)name;
+
+ http_sendOk(client);
+ netconn_write(client, revc_buf, revc_len, NETCONN_COPY);
+ return 0;
+}
+
+
+
+/*
+ * Default function that http server call every client request, if it doesn't match a cgi table.
+ * In this implementation all client request are associate to real file stored on FAT file
+ * sistem on SD card. If the file there is not on SD card the server reply to client the
+ * error File not found, and send an harcoded page. In the same way, the server reply
+ * error page if the SD card is not present.
+ *
+ */
+static int http_htmPageLoad(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+
+ if (SD_CARD_PRESENT())
{
- struct netconn *client;
- struct netbuf *rx_buf_conn;
- char *rx_buf;
- u16_t len;
-
- client = netconn_accept(server);
- if (!client)
- continue;
-
- //Update board status.
- sprintf(status.last_connected_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->remote_ip.addr));
- sprintf(status.local_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->local_ip.addr));
- status.tot_req++;
-
- rx_buf_conn = netconn_recv(client);
- if (rx_buf_conn)
+
+ // SD fat filesystem context
+ Sd sd;
+ FATFS fs;
+ FatFile in_file;
+ FRESULT result;
+
+ bool sd_ok = sd_init(&sd, NULL, 0);
+ if (sd_ok)
{
- netbuf_data(rx_buf_conn, (void **)&rx_buf, &len);
- if (rx_buf)
+ LOG_INFO("Mount FAT filesystem.\n");
+ result = f_mount(0, &fs);
+ if (result != FR_OK)
{
- memset(file_name, 0, sizeof(file_name));
- memset(tx_buf, 0, sizeof(tx_buf));
-
- get_fileName(rx_buf, file_name, sizeof(file_name));
+ LOG_ERR("Mounting FAT volumes error[%d]\n", result);
+ sd_ok = false;
+ f_mount(0, NULL);
+ }
- kprintf("%s\n", file_name);
- if (strlen(file_name) == 0)
- strcpy(file_name, "index.htm");
+ if (sd_ok)
+ {
+ result = fatfile_open(&in_file, name, FA_OPEN_EXISTING | FA_READ);
- if (!strcmp("bertos_logo_jpg.jpg", file_name))
+ size_t count = 0;
+ if (result == FR_OK)
{
- netconn_write(client, bertos_logo_jpg, bertos_logo_jpg_len, NETCONN_NOCOPY);
- }
- else if (!strcmp("status", file_name))
- {
- sprintf((char *)tx_buf, "[ %s, %s, %d.%d, %ld, %d ]", status.local_ip, status.last_connected_ip,
- status.internal_temp / 10, status.internal_temp % 10,
- status.up_time, status.tot_req);
+ LOG_INFO("Opened file '%s' size %ld\n", name, in_file.fat_file.fsize);
- netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
- }
- else if (SD_CARD_PRESENT())
- {
- bool sd_ok = sd_init(&sd, NULL, 0);
- if (sd_ok)
+ http_sendOk(client);
+
+ while (count < in_file.fat_file.fsize)
{
- kprintf("Mount FAT filesystem.\n");
- result = f_mount(0, &fs);
- if (result != FR_OK)
- {
- kprintf("Mounting FAT volumes error[%d]\n", result);
- sd_ok = false;
- f_mount(0, NULL);
- }
-
- if (sd_ok)
- {
- result = fatfile_open(&in_file, file_name, FA_OPEN_EXISTING | FA_READ);
-
- size_t count = 0;
- if (result == FR_OK)
- {
- kprintf("Opened file '%s' size %ld\n", file_name, in_file.fat_file.fsize);
-
- netconn_write(client, http_html_hdr_200, sizeof(http_html_hdr_200) - 1, NETCONN_NOCOPY);
-
- while (count < in_file.fat_file.fsize)
- {
- int len = kfile_read(&in_file.fd, tx_buf, sizeof(tx_buf));
- netconn_write(client, tx_buf, len, NETCONN_COPY);
- count += len;
- }
-
- kfile_flush(&in_file.fd);
- kfile_close(&in_file.fd);
-
- kprintf("Sent: %d\n", count);
- }
- else
- {
- kprintf("Unable to open file: '%s' error[%d]\n", file_name, result);
- netconn_write(client, http_html_hdr_404, sizeof(http_html_hdr_404) - 1, NETCONN_NOCOPY);
- netconn_write(client, http_file_not_found, sizeof(http_file_not_found) - 1, NETCONN_NOCOPY);
- }
- }
+ int len = kfile_read(&in_file.fd, tx_buf, sizeof(tx_buf));
+ netconn_write(client, tx_buf, len, NETCONN_COPY);
+ count += len;
}
- f_mount(0, NULL);
- kprintf("Umount FAT filesystem.\n");
+
+ kfile_flush(&in_file.fd);
+ kfile_close(&in_file.fd);
+
+ LOG_INFO("Sent: %d\n", count);
}
else
{
- netconn_write(client, http_html_hdr_404, sizeof(http_html_hdr_404) - 1, NETCONN_NOCOPY);
- netconn_write(client, http_sd_not_present, sizeof(http_sd_not_present), NETCONN_NOCOPY);
+ LOG_ERR("Unable to open file: '%s' error[%d]\n", name, result);
+ http_sendFileNotFound(client);
+ netconn_write(client, http_file_not_found, http_file_not_found_len - 1, NETCONN_NOCOPY);
}
}
- netconn_close(client);
- netbuf_delete(rx_buf_conn);
}
- netconn_delete(client);
+ f_mount(0, NULL);
+ LOG_INFO("Umount FAT filesystem.\n");
+ }
+ else
+ {
+ http_sendFileNotFound(client);
+ netconn_write(client, http_sd_not_present, http_sd_not_present_len, NETCONN_NOCOPY);
+ }
+
+ return 0;
+}
+
+/*
+ * Return to client a string that display the CHIP ID information.
+ * See datasheet for more detail.
+ */
+static int cgi_chipInfo(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
+
+ sprintf((char *)tx_buf, "{ \"core_name\":\"%s\", \"arch_name\":\"%s\", \"sram_size\":\"%s\",\
+ \"flash_size\":\"%s\", \"mem_boot_type\":\"%s\" }",
+ chipid_eproc_name(CHIPID_EPRCOC()),
+ chipid_archnames(CHIPID_ARCH()),
+ chipid_sramsize(CHIPID_SRAMSIZ()),
+ chipid_nvpsize(CHIPID_NVPSIZ()),
+ chipid_nvptype(CHIPID_NVTYP()));
+
+ http_sendOk(client);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+
+ return 0;
+}
+
+/*
+ * Static cgi table where we associate callback to page.
+ */
+static HttpCGI cgi_table[] =
+{
+ { CGI_MATCH_WORD, "echo", cgi_echo },
+ { CGI_MATCH_NAME, "get_temperature", cgi_temp },
+ { CGI_MATCH_NAME, "get_uptime", cgi_uptime },
+ { CGI_MATCH_NAME, "get_resistor", cgi_resistor },
+ { CGI_MATCH_NAME, "set_led", cgi_led },
+ { CGI_MATCH_WORD, "status", cgi_status },
+ { CGI_MATCH_NAME, "get_chipinfo", cgi_chipInfo },
+ { CGI_MATCH_NAME, "bertos_logo_jpg", cgi_logo },
+ { CGI_MATCH_NONE, NULL, NULL }
+};
+
+
+int main(void)
+{
+ struct netconn *server;
+
+ /* Hardware initialization */
+ init();
+ http_init(http_htmPageLoad, cgi_table);
+
+ proc_new(status_process, NULL, KERN_MINSTACKSIZE * 2, NULL);
+
+ dhcp_start(&netif);
+ while (!netif.ip_addr.addr)
+ timer_delay(DHCP_FINE_TIMER_MSECS);
+ kprintf("dhcp ok: ip = %d.%d.%d.%d\n", IP_ADDR_TO_INT_TUPLE(netif.ip_addr.addr));
+
+ server = netconn_new(NETCONN_TCP);
+ netconn_bind(server, IP_ADDR_ANY, 80);
+ netconn_listen(server);
+
+ while (1)
+ {
+ http_poll(server);
}
}
projects / bertos.git / blobdiff