From 5a08fd92ac139820e1a1202d0b4b67190f24ccdb Mon Sep 17 00:00:00 2001
From: llornkcor <llornkcor>
Date: Thu, 31 Oct 2002 00:09:31 +0000
Subject: added - initial check in

---
(limited to 'noncore/todayplugins/stockticker/libstocks/history.c')

diff --git a/noncore/todayplugins/stockticker/libstocks/history.c b/noncore/todayplugins/stockticker/libstocks/history.c
new file mode 100644
index 0000000..61f57d1
--- a/dev/null
+++ b/noncore/todayplugins/stockticker/libstocks/history.c
@@ -0,0 +1,149 @@
+/* libstocks - Library to get current stock quotes from Yahoo Finance
+ *
+ * Copyright (C) 2000 Eric Laeuffer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#define __HISTORY_C__
+
+#include <string.h>
+#include <stdlib.h>
+
+#ifdef __WINDOWS__
+#include <malloc.h>
+#endif
+
+#include "stocks.h"
+#include "http.h"
+#include "csv.h"
+
+const char history_stocks_server[]="chart.yahoo.com";
+const char url_history_beg[]="/table.csv?s=";
+
+/*****************************************************************************/
+/* Gets the stock history csv file and return in csv_file the result.        */
+/* The stock is defined by its symbol.                                       */
+/* The history file starts at date1 and stops at date2.                      */
+/*****************************************************************************/
+libstocks_return_code get_history_csv(char *symbol, 
+				      char *date1, 
+				      char *date2, 
+				      char **csv_file)
+{
+  char *data;
+  char url[80];
+
+  char adate[12];
+
+  char *y1, *y2;
+  char *m1, *m2;
+  char *d1, *d2;
+
+  libstocks_return_code error;
+  
+  char *test;
+
+  strcpy(url, url_history_beg);
+  strcat(url, symbol);
+
+  strcpy(adate, date1);
+
+  y1=strtok(adate, "/");
+  if(!y1) return ERRDATE;
+  m1 = strtok(NULL, "/");
+  if(!m1) return ERRDATE;
+  d1 = strtok(NULL, "/");
+  if(!m1) return ERRDATE;
+
+  strcat(url, "&a=");
+  strcat(url, m1);
+  strcat(url, "&b=");
+  strcat(url, d1);
+  strcat(url, "&c=");
+  strcat(url, y1);
+
+  strcpy(adate, date2);
+
+  y2=strtok(adate, "/");
+  if(!y2) return ERRDATE;
+  m2 = strtok(NULL, "/");
+  if(!m2) return ERRDATE;
+  d2 = strtok(NULL, "/");
+  if(!d2) return ERRDATE;
+
+  strcat(url, "&d=");
+  strcat(url, m2);
+  strcat(url, "&e=");
+  strcat(url, d2);
+  strcat(url, "&f=");
+  strcat(url, y2);
+  strcat(url, "&g=d&q=q&y=0&x=.csv");
+  
+  error=http_get(url, (char *)history_stocks_server, &data);
+  if (error) return error;
+
+  /* tests if data is valid */
+
+  /* The server returns "No data available for symbol" */
+  /* when the stock is not available */
+  test = strstr(data, "No data available");
+  if (test) 
+    {
+      free(data);
+      return ERRDATA;
+    }
+
+  /* The server return "No Prices in this date range" */
+  /* when dates have not the good range */
+  test = strstr(data, "No Prices in this date range");
+  if (test) 
+    {
+      free(data);
+      return ERRRANG;
+    }
+
+  *csv_file = data;
+
+  return(0);
+}
+
+/*****************************************************************************/
+/* Gets the stock history and return a stock structure list.                 */
+/* The stock is defined by its symbol.                                       */
+/* The history file starts at date1 and stops at date2.                      */
+/*****************************************************************************/
+libstocks_return_code get_stock_history(char *symbol, 
+				        char *date1, 
+				        char *date2, 
+				        stock **stock_history)
+{
+  libstocks_return_code error;
+  char *csv_file;
+  stock *stock_parsed;
+
+  error = get_history_csv(symbol, date1, date2, &csv_file);
+  if (error) return error;
+
+  stock_parsed = parse_csv_history_file(csv_file);
+
+  free(csv_file);
+
+  if (!stock_parsed) return ERRPCSV;
+  *stock_history = stock_parsed;
+
+  return(0);
+}
--
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