Diff: WeatherHacks.cpp

Revision:

0:6d53d6d34ac3

Child:

1:8655f1720450

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WeatherHacks.cpp	Sat Jun 27 10:34:38 2015 +0000
@@ -0,0 +1,127 @@
+#include <mbed.h>
+#include "WeatherHacks.h"
+
+#include "EthernetInterface.h"
+#include "HTTPClient.h"
+#include "XMLaide.h"
+
+#define RSS_URL      "http://weather.livedoor.com/forecast/rss/area/130010.xml"
+
+#if 0
+//Enable debug
+#define DBG(x, ...) std::printf("[WeatherHacks : DBG]"x"\r\n", ##__VA_ARGS__);
+#define WARN(x, ...) std::printf("[WeatherHacks : WARN]"x"\r\n", ##__VA_ARGS__);
+#else
+//Disable debug
+#define DBG(x, ...)
+#define WARN(x, ...)
+#endif
+
+#define ERR(x, ...) std::printf("[WeatherHacks : ERR]"x"\r\n", ##__VA_ARGS__);
+
+static HTTPClient http;
+
+void WH_init(void) 
+{
+    
+}
+
+#define LINK_SIZE 100
+static void getLink(const char *buff, char *link)
+{
+    const char *p = buff ;
+    p = XML_getTag(p, "item") ; p = XML_getTag(p, "item") ; p = XML_getTag(p, "link") ;
+    p = XML_getElement(p, link, LINK_SIZE) ;
+}
+
+static const char *getTodayP(const char *p) {
+    return XML_getTag(p, "table") ;
+}
+
+static const char *getTomorrowP(const char *p) {
+    p    = XML_getTag(p, "table") ; p = XML_getTag(p, "table") ;
+    return XML_getTag(p, "table") ;
+}
+
+#define TEMP_SIZE 5
+static const char *getHiTemp(const char *p, char *hi)
+{
+    p = XML_getTag(p, "table") ; p = XML_getTag(p, "td") ; p = XML_getTag(p, "td") ;
+    p = XML_getTag(p, "span") ;
+    p = XML_getElement(p, hi, 2) ;
+    return p ;
+}
+
+static const char *getLoTemp(const char *p, char *lo)
+{
+    p = XML_getTag(p, "tr") ; p = XML_getTag(p, "tr") ;
+    p = XML_getTag(p, "td") ; p = XML_getTag(p, "td") ;
+    p = XML_getTag(p, "span") ;
+    p = XML_getElement(p, lo, 2) ;
+    return p ;
+}
+
+static const char *getPrec(const char *p, char *prec)
+{
+    p = XML_getTag(p, "th") ; p = XML_getTag(p, "th") ;
+    p = XML_getTag(p, "td") ;    p = XML_getTag(p, "td") ; p = XML_getTag(p, "td") ;
+    p = XML_getElement(p, prec, 2) ;
+    if(strcmp(prec, "--") == 0)strcpy(prec, " 0") ;
+    return p ;
+}
+
+static void getInfo(const char *buff, char *hi, char *lo, char *prec)
+{
+    #define JST (9*60*60)
+    struct tm t;
+    time_t ctTime;
+    ctTime = time(NULL) + JST ;
+    t  = *localtime(&ctTime);
+    const char *p ;
+    
+    if(t.tm_hour >= 12) {
+        p = getTomorrowP(buff) ;
+    } else {
+        p = getTodayP(buff) ;
+    }
+    p = getHiTemp(p, hi) ;
+    p = getLoTemp(p, lo) ;
+    p = getPrec(p, prec) ;
+}
+
+#define FREE(p) if(p)free(p)
+#define BUFF_SIZE 1024*12
+
+void WH_getInfo(void)
+{
+    int ret ;
+
+    char *recv = (char *)malloc(BUFF_SIZE) ;
+    char *link = (char *)malloc(LINK_SIZE) ;
+    char hiTemp[TEMP_SIZE] ;
+    char loTemp[TEMP_SIZE] ;
+    char prec[TEMP_SIZE] ;
+    
+    if((recv == NULL) || (link == NULL)){
+        FREE(recv) ; FREE(link) ;
+        ERR("No Memory, WH_getInfo") ;
+        return ;
+    }
+    
+    ret = http.get(RSS_URL, recv, BUFF_SIZE);
+    if (!ret) {
+        //DBG("Result: %s\n", recv);
+    } else {
+        ERR("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());
+    }
+    getLink(recv, link) ; DBG("link=%s", link) ;
+    ret = http.get(link, recv, BUFF_SIZE);
+    if (!ret) {
+        DBG("Result: %s\n", recv);
+    } else {
+        ERR("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());
+    }
+    getInfo(recv, hiTemp, loTemp, prec) ;
+    printf("Hi=%s, Lo=%s, Prec=%s\n", hiTemp, loTemp, prec) ;
+    FREE(recv) ; FREE(link) ;
+}