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98 lines
2.7 KiB
98 lines
2.7 KiB
/*
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Some random cgi routines. Used in the LED example and the page that returns the entire
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flash as a binary. Also handles the hit counter on the main page.
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*/
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/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* Jeroen Domburg <jeroen@spritesmods.com> wrote this file. As long as you retain
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* this notice you can do whatever you want with this stuff. If we meet some day,
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* and you think this stuff is worth it, you can buy me a beer in return.
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* ----------------------------------------------------------------------------
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*/
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#include <esp8266.h>
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#include "cgi.h"
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#include "io.h"
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//cause I can't be bothered to write an ioGetLed()
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static char currLedState=0;
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//Cgi that turns the LED on or off according to the 'led' param in the POST data
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int ICACHE_FLASH_ATTR cgiLed(HttpdConnData *connData) {
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int len;
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char buff[1024];
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if (connData->conn==NULL) {
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//Connection aborted. Clean up.
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return HTTPD_CGI_DONE;
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}
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len=httpdFindArg(connData->post->buff, "led", buff, sizeof(buff));
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if (len!=0) {
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currLedState=atoi(buff);
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ioLed(currLedState);
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}
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httpdRedirect(connData, "led.tpl");
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return HTTPD_CGI_DONE;
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}
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//Template code for the led page.
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int ICACHE_FLASH_ATTR tplLed(HttpdConnData *connData, char *token, void **arg) {
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char buff[128];
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if (token==NULL) return HTTPD_CGI_DONE;
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os_strcpy(buff, "Unknown");
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if (os_strcmp(token, "ledstate")==0) {
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if (currLedState) {
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os_strcpy(buff, "on");
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} else {
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os_strcpy(buff, "off");
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}
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} else if (os_strcmp(token, "topnav")==0) {
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printNav(buff);
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}
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httpdSend(connData, buff, -1);
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return HTTPD_CGI_DONE;
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}
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static long hitCounter=0;
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//Template code for the counter on the index page.
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int ICACHE_FLASH_ATTR tplCounter(HttpdConnData *connData, char *token, void **arg) {
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char buff[256];
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if (token==NULL) return HTTPD_CGI_DONE;
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if (os_strcmp(token, "topnav")==0) {
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printNav(buff);
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} else if (os_strcmp(token, "counter")==0) {
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hitCounter++;
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os_sprintf(buff, "%ld", hitCounter);
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}
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httpdSend(connData, buff, -1);
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return HTTPD_CGI_DONE;
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}
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static char *navLinks[][2] = {
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{ "Home", "/index.tpl" }, { "Wifi", "/wifi/wifi.tpl" }, { "Serial", "/index.tpl" },
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{ "Esp log", "/console.tpl" }, { "Help", "/help.tpl" },
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{ 0, 0 },
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};
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// Print the navigation links into the buffer and return the length of what got added
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int ICACHE_FLASH_ATTR printNav(char *buff) {
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int len = 0;
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for (uint8_t i=0; navLinks[i][0] != NULL; i++) {
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if (i > 0) buff[len++] = '|';
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//os_printf("nav %d: %s -> %s\n", i, navLinks[i][0], navLinks[i][1]);
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len += os_sprintf(buff+len, " <a href=\"%s\">%s</a> ", navLinks[i][1], navLinks[i][0]);
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}
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//os_printf("nav: %s\n", buff);
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return len;
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}
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