working xively report

Former-commit-id: eea29fc09155b1be61b49b02e319554f1040991a

esphttpclient/httpclient.c

@@ -10,6 +10,7 @@
 // FIXME: sprintf->snprintf everywhere.
 
 #include <esp8266.h>
+#include <httpd.h>
 
 #include "httpclient.h"
 #include <limits.h>
@@ -27,6 +28,7 @@ typedef struct {
 	httpclient_cb user_callback;
 	int timeout;
 	os_timer_t timeout_timer;
+	http_method method;
 } request_args;
 
 static char *FLASH_FN esp_strdup(const char *str)
@@ -247,14 +249,18 @@ static void FLASH_FN connect_callback(void * arg)
 	espconn_regist_recvcb(conn, receive_callback);
 	espconn_regist_sentcb(conn, sent_callback);
 
-	const char *method = "GET";
 	char post_headers[32] = "";
 
 	if (req->post_data != NULL) { // If there is data this is a POST request.
-		method = "POST";
 		sprintf(post_headers, "Content-Length: %d\r\n", strlen(req->post_data));
+
+		if (req->method == HTTP_GET) {
+			req->method = HTTP_POST;
+		}
 	}
 
+	const char* method = http_method_str(req->method);
+
 	if (req->headers == NULL) { /* Avoid NULL pointer, it may cause exception */
 		req->headers = (char *)malloc(sizeof(char));
 		req->headers[0] = '\0';
@@ -438,68 +444,30 @@ static void FLASH_FN dns_callback(const char *hostname, ip_addr_t *addr, void *a
 	}
 }
 
-void FLASH_FN http_raw_request(const char *hostname, int port, bool secure, const char *path, const char *post_data, const char *headers, httpclient_cb user_callback)
+bool FLASH_FN http_request(
+		const char *url,
+		http_method method,
+		const char *body,
+		const char *headers,
+		httpclient_cb user_callback)
 {
-	info("HTTP request: %s:%d%s", hostname, port, path);
-
-	request_args * req = (request_args *)malloc(sizeof(request_args));
-	req->hostname = esp_strdup(hostname);
-	req->path = esp_strdup(path);
-	req->port = port;
-	req->secure = secure;
-	req->headers = esp_strdup(headers);
-	req->post_data = esp_strdup(post_data);
-	req->buffer_size = 1;
-	req->buffer = (char *)malloc(1);
-	req->buffer[0] = '\0'; // Empty string.
-	req->user_callback = user_callback;
-	req->timeout = HTTP_REQUEST_TIMEOUT_MS;
-
-	ip_addr_t addr;
-	err_t error = espconn_gethostbyname((struct espconn *)req, // It seems we don't need a real espconn pointer here.
-										hostname, &addr, dns_callback);
-
-	if (error == ESPCONN_INPROGRESS) {
-		dbg("DNS pending");
-	} else if (error == ESPCONN_OK) {
-		// Already in the local names table (or hostname was an IP address), execute the callback ourselves.
-		dns_callback(hostname, &addr, req);
-	} else {
-		if (error == ESPCONN_ARG) {
-			error("DNS arg error %s", hostname);
-		} else {
-			error("DNS error code %d", error);
-		}
-		dns_callback(hostname, NULL, req); // Handle all DNS errors the same way.
-	}
-}
+	// --- prepare port, secure... ---
 
-/*
- * Parse an URL of the form http://host:port/path
- * <host> can be a hostname or an IP address
- * <port> is optional
- */
-void FLASH_FN http_post(const char *url, const char *post_data, const char *headers, httpclient_cb user_callback)
-{
 	// FIXME: handle HTTP auth with http://user:pass@host/
-	// FIXME: get rid of the #anchor part if present.
 
 	char hostname[128] = "";
 	int port = 80;
 	bool secure = false;
 
-	bool is_http  = strstarts(url, "http://");
-	bool is_https = strstarts(url, "https://");
-
-	if (is_http)
+	if (strstarts(url, "http://"))
 		url += strlen("http://"); // Get rid of the protocol.
-	else if (is_https) {
+	else if (strstarts(url, "https://")) {
 		port = 443;
 		secure = true;
 		url += strlen("https://"); // Get rid of the protocol.
 	} else {
-		error("URL is not HTTP or HTTPS %s", url);
-		return;
+		error("Invalid URL protocol: %s", url);
+		return false;
 	}
 
 	char *path = strchr(url, '/');
@@ -513,38 +481,91 @@ void FLASH_FN http_post(const char *url, const char *post_data, const char *head
 	}
 
 	if (colon == NULL) { // The port is not present.
-		memcpy(hostname, url, path - url);
+		memcpy(hostname, url, (size_t)(path - url));
 		hostname[path - url] = '\0';
 	} else {
 		port = atoi(colon + 1);
 		if (port == 0) {
 			error("Port error %s\n", url);
-			return;
+			return false;
 		}
 
-		memcpy(hostname, url, colon - url);
+		memcpy(hostname, url, (size_t)(colon - url));
 		hostname[colon - url] = '\0';
 	}
 
-
 	if (path[0] == '\0') { // Empty path is not allowed.
 		path = "/";
 	}
 
-	http_raw_request(hostname, port, secure, path, post_data, headers, user_callback);
+	// ---
+
+	info("HTTP request: %s:%d%s", hostname, port, path);
+
+	request_args * req = (request_args *)malloc(sizeof(request_args));
+	req->hostname = esp_strdup(hostname);
+	req->path = esp_strdup(path);
+
+	// remove #anchor
+	char *hash = strchr(req->path, '#');
+	if (hash != NULL) *hash = '\0'; // remove the hash part
+
+	req->port = port;
+	req->secure = secure;
+	req->headers = esp_strdup(headers);
+	req->post_data = esp_strdup(body);
+	req->buffer_size = 1;
+	req->buffer = (char *)malloc(1);
+	req->buffer[0] = '\0'; // Empty string.
+	req->user_callback = user_callback;
+	req->timeout = HTTP_REQUEST_TIMEOUT_MS;
+	req->method = method;
+
+	ip_addr_t addr;
+	err_t error = espconn_gethostbyname((struct espconn *)req, // It seems we don't need a real espconn pointer here.
+										hostname, &addr, dns_callback);
+
+	if (error == ESPCONN_INPROGRESS) {
+		dbg("DNS pending");
+	} else if (error == ESPCONN_OK) {
+		// Already in the local names table (or hostname was an IP address), execute the callback ourselves.
+		dns_callback(hostname, &addr, req);
+	} else {
+		if (error == ESPCONN_ARG) {
+			error("DNS arg error %s", hostname);
+		} else {
+			error("DNS error code %d", error);
+		}
+		dns_callback(hostname, NULL, req); // Handle all DNS errors the same way.
+	}
+
+	return true;
 }
 
-void FLASH_FN http_get(const char *url, const char *headers, httpclient_cb user_callback)
+
+bool FLASH_FN http_post(const char *url, const char *body, const char *headers, httpclient_cb user_callback)
+{
+	return http_request(url, HTTP_POST, body, headers, user_callback);
+}
+
+
+bool http_get(const char *url, const char *headers, httpclient_cb user_callback)
 {
-	http_post(url, NULL, headers, user_callback);
+	return http_request(url, HTTP_GET, NULL, headers, user_callback);
 }
 
+
+bool http_put(const char *url, const char *body, const char *headers, httpclient_cb user_callback)
+{
+	return http_request(url, HTTP_PUT, body, headers, user_callback);
+}
+
+
 void FLASH_FN http_callback_example(char *response_body, int http_status, char *response_headers, int body_size)
 {
-	dbg("http_status=%d", http_status);
+	dbg("Response: code %d", http_status);
 	if (http_status != HTTP_STATUS_GENERIC_ERROR) {
-		dbg("strlen(headers)=%d", (int)strlen(response_headers));
-		dbg("body_size=%d", body_size);
-		dbg("body=%s<EOF>", response_body); // FIXME: this does not handle binary data.
+		dbg("len(headers) = %d, len(body) = %d", (int)strlen(response_headers), body_size);
+		dbg("body: %s<EOF>", response_body); // FIXME: this does not handle binary data.
 	}
 }

esphttpclient/httpclient.h

@@ -11,6 +11,7 @@
 #define HTTPCLIENT_H
 
 #include <esp8266.h>
+#include <httpd.h>
 
 #define HTTP_STATUS_GENERIC_ERROR  -1   // In case of TCP or DNS error the callback is called with this status.
 #define BUFFER_SIZE_MAX            5000 // Size of http responses that will cause an error.
@@ -27,34 +28,39 @@
  * A successful request corresponds to an HTTP status code of 200 (OK).
  * More info at http://en.wikipedia.org/wiki/List_of_HTTP_status_codes
  */
-typedef void (* httpclient_cb)(char * response_body, int http_status, char * response_headers, int body_size);
+typedef void (* httpclient_cb)(char *response_body, int http_status, char *response_headers, int body_size);
 
 /**
- * Download a web page from its URL.
+ * @brief Download a web page from its URL.
+ *
  * Try:
  * http_get("http://wtfismyip.com/text", http_callback_example);
  */
-void http_get(const char * url, const char *headers, httpclient_cb user_callback);
+bool http_get(const char * url, const char *headers, httpclient_cb user_callback);
 
 /**
- * Post data to a web form.
+ * @brief Post data to a web form.
+ *
  * The data should be encoded as application/x-www-form-urlencoded.
+ *
  * Try:
  * http_post("http://httpbin.org/post", "first_word=hello&second_word=world", http_callback_example);
  */
-void http_post(const char *url, const char *post_data, const char *headers, httpclient_cb user_callback);
+bool http_post(const char *url, const char *post_data, const char *headers, httpclient_cb user_callback);
+
+/** Like POST, but with the PUT method. */
+bool http_put(const char *url, const char *body, const char *headers, httpclient_cb user_callback);
 
 /**
- * Call this function to skip URL parsing if the arguments are already in separate variables.
+ * @brief Send a HTTP request
+ * @param url      : protocol://host[:port][/path]
+ * @param method   : get, post, ...
+ * @param body     : request body. If GET & body != NULL, method changes to POST.
+ * @param headers  : additional headers string. Must end with \r\n
+ * @param user_callback : callback for parsing the response
+ * @return success (in sending)
  */
-void http_raw_request(
-		const char * hostname,
-		int port,
-		bool secure,
-		const char *path,
-		const char *post_data,
-		const char *headers,
-		httpclient_cb user_callback);
+bool http_request(const char *url, http_method method, const char *body, const char *headers, httpclient_cb user_callback);
 
 /**
  * Output on the UART.

libesphttpd/core/httpd.c

@@ -115,6 +115,20 @@ const char ICACHE_FLASH_ATTR *httpdGetMimetype(const char *filepath) {
 	return mimeTypes[i].mimetype;
 }
 
+const char* ICACHE_FLASH_ATTR http_method_str(http_method m)
+{
+	switch (m) {
+		default:
+		case HTTP_GET: return "GET";
+		case HTTP_POST: return "POST";
+		case HTTP_OPTIONS: return "OPTIONS";
+		case HTTP_PUT: return "PUT";
+		case HTTP_DELETE: return "DELETE";
+		case HTTP_PATCH: return "PATCH";
+		case HTTP_HEAD: return "HEAD";
+	}
+}
+
 //Looks up the connData info for a specific connection
 static HttpdConnData ICACHE_FLASH_ATTR *httpdFindConnData(ConnTypePtr conn, const char *remIp, int remPort) {
 	for (int i=0; i<HTTPD_MAX_CONNECTIONS; i++) {
@@ -521,7 +535,7 @@ static void ICACHE_FLASH_ATTR httpdProcessRequest(HttpdConnData *conn) {
 		return; //Shouldn't happen
 	}
 
-	if (conn->requestType == HTTPD_METHOD_OPTIONS /*&& conn->priv->chunkHdr[0] != 0*/) {
+	if (conn->requestType == HTTP_OPTIONS /*&& conn->priv->chunkHdr[0] != 0*/) {
 		// we have a CORS preflight
 		httpdStartResponse(conn, 200);
 		httpdHeader(conn, "Access-Control-Allow-Headers", conn->priv->corsToken);
@@ -589,16 +603,16 @@ static void ICACHE_FLASH_ATTR httpdParseHeader(char *h, HttpdConnData *conn) {
 	char firstLine=0;
 
 	if (strstarts(h, "GET ")) {
-		conn->requestType = HTTPD_METHOD_GET;
+		conn->requestType = HTTP_GET;
 		firstLine=1;
 	} else if (strstarts(h, "POST ")) {
-		conn->requestType = HTTPD_METHOD_POST;
+		conn->requestType = HTTP_POST;
 		firstLine=1;
 	} else if (strstarts(h, "PUT ")) {
-		conn->requestType = HTTPD_METHOD_PUT;
+		conn->requestType = HTTP_PUT;
 		firstLine=1;
 	} else if (strstarts(h, "OPTIONS ")) {
-		conn->requestType = HTTPD_METHOD_OPTIONS;
+		conn->requestType = HTTP_OPTIONS;
 		firstLine=1;
 	} else if (strstarts(h, "Host:")) {
 		i=5;

libesphttpd/include/httpd.h

@@ -13,15 +13,16 @@ typedef enum {
 } httpd_cgi_state;
 
 typedef enum {
-	HTTPD_METHOD_GET = 1,
-	HTTPD_METHOD_POST = 2,
-	HTTPD_METHOD_OPTIONS = 3,
-	HTTPD_METHOD_PUT = 4,
-	HTTPD_METHOD_DELETE = 5,
-	HTTPD_METHOD_PATCH = 6,
-	HTTPD_METHOD_HEAD = 7,
+	HTTP_GET = 1,
+	HTTP_POST = 2,
+	HTTP_OPTIONS = 3,
+	HTTP_PUT = 4,
+	HTTP_DELETE = 5,
+	HTTP_PATCH = 6,
+	HTTP_HEAD = 7,
 } http_method;
 
+
 typedef struct HttpdPriv HttpdPriv;
 typedef struct HttpdConnData HttpdConnData;
 typedef struct HttpdPostData HttpdPostData;
@@ -95,7 +96,7 @@ typedef struct {
 
 #define ROUTE_END() {NULL, NULL, NULL, NULL}
 
-
+const char *http_method_str(http_method m);
 
 httpd_cgi_state cgiRedirect(HttpdConnData *connData);
 httpd_cgi_state cgiRedirectToHostname(HttpdConnData *connData);

user/reporting.c

@@ -2,6 +2,7 @@
 #include "datalink.h"
 #include "serial.h"
 #include "httpclient.h"
+#include "ftoa.h"
 
 #define RPT_CONF_MAGIC 0x24C595D5
 
@@ -114,9 +115,28 @@ static void FLASH_FN compare_ref_cb(SBMP_Endpoint *ep, SBMP_Datagram *dg, void *
 static void FLASH_FN do_send_report(void)
 {
 	info("Sending report...");
+
+	char buf[100];
+	char *bb = buf;
+
+	char url_buf[200];
+	char hdrs_buf[100];
+
 	switch (rpt_conf.service) {
-		case RPT_XIVELY:
-			warn("------- TODO: REPORT TO XIVELY -------");
+		case RPT_XIVELY:;
+			bb += sprintf(bb, "deviation,");
+			bb += my_ftoa(bb, rpt_result.deviation, 2);
+			bb += sprintf(bb, "\nI_rms,");
+			bb += my_ftoa(bb, rpt_result.i_rms, 2);
+
+			// URL
+			sprintf(url_buf, "http://api.xively.com/v2/feeds/%s.csv", rpt_conf.feed);
+
+			// Key
+			sprintf(hdrs_buf, "X-ApiKey: %s\r\n", rpt_conf.key);
+
+			http_put(url_buf, buf, hdrs_buf, http_callback_example);
+
 			break;
 
 		case RPT_THINGSPEAK: