From 6054c3e691fb264ef7634614eea69b1f163d61fd Mon Sep 17 00:00:00 2001
From: moneroexamples <moneroexamples@tuta.io>
Date: Wed, 23 Nov 2016 13:32:51 +0800
Subject: [PATCH] timestamp_to_str rewritten to generate UTC time strings

---
 CMakeLists.txt |  1 +
 src/page.h     | 31 ++++++++++++++++---------------
 src/tools.cpp  | 33 ++++++++++++++++++++-------------
 src/tools.h    |  3 +++
 4 files changed, 40 insertions(+), 28 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 708f344..773c804 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -139,4 +139,5 @@ target_link_libraries(${PROJECT_NAME}
         pthread
         unbound
         unwind
+        curl
         dl)
diff --git a/src/page.h b/src/page.h
index 9918b04..2ba7673 100644
--- a/src/page.h
+++ b/src/page.h
@@ -2208,27 +2208,28 @@ namespace xmreg {
             {
                 uint64_t estimated_blk_height {0};
 
-                // first parse the string date into boost's ptime object
-                dateparser parser {"%Y-%m-%d %H:%M:%S"};
+                // first parse the string date sys_seconds and then to timestamp
+                // since epoch
+                uint64_t blk_timestamp_utc = parse(search_text).time_since_epoch().count();
 
-                if (parser(search_text))
+                if (blk_timestamp_utc)
                 {
                     // seems we have a correct date!
                     // so try to estimate block height from it.
 
-                    cout << "timestamp: " << xmreg::ptime_to_time_t(parser.pt) << endl;
+                    cout << "timestamp: " << blk_timestamp_utc << endl;
 
-                    // estimate blockchain height from the start date provided
-                    estimated_blk_height = xmreg::estimate_bc_height(search_text);
-
-                    result_html = show_block(estimated_blk_height);
-
-                    // nasty check if output is "Cant get" as a sign of
-                    // a not found tx. Later need to think of something better.
-                    if (result_html.find("Cant get") == string::npos)
-                    {
-                        return result_html;
-                    }
+//                    // estimate blockchain height from the start date provided
+//                    estimated_blk_height = xmreg::estimate_bc_height(search_text);
+//
+//                    result_html = show_block(estimated_blk_height);
+//
+//                    // nasty check if output is "Cant get" as a sign of
+//                    // a not found tx. Later need to think of something better.
+//                    if (result_html.find("Cant get") == string::npos)
+//                    {
+//                        return result_html;
+//                    }
                 }
             }
 
diff --git a/src/tools.cpp b/src/tools.cpp
index a43ef55..d4fea25 100644
--- a/src/tools.cpp
+++ b/src/tools.cpp
@@ -143,23 +143,14 @@ namespace xmreg
         return bf::path(remove_trailing_path_separator(path_str));
     }
 
-
     string
     timestamp_to_str(time_t timestamp, const char* format)
     {
+        auto a_time_point = chrono::system_clock::from_time_t(timestamp);
+        auto utc          = date::to_utc_time(chrono::system_clock::from_time_t(timestamp));
+        auto sys_time     = date::to_sys_time(utc);
 
-        const int TIME_LENGTH = 60;
-
-        char str_buff[TIME_LENGTH];
-
-        tm *tm_ptr;
-        tm_ptr = localtime(&timestamp);
-
-        size_t len;
-
-        len = std::strftime(str_buff, TIME_LENGTH, format, tm_ptr);
-
-        return string(str_buff, len);
+        return date::format(format, date::floor<chrono::seconds>(sys_time));
     }
 
 
@@ -890,5 +881,21 @@ namespace xmreg
         return null_pkey;
     }
 
+    date::sys_seconds
+    parse(const std::string& str, string format)
+    {
+        std::istringstream in(str);
+        date::sys_seconds tp;
+        in >> date::parse(format, tp);
+        if (in.fail())
+        {
+            in.clear();
+            in.str(str);
+            in >> date::parse(format, tp);
+        }
+        return tp;
+    }
+
+
 }
 
diff --git a/src/tools.h b/src/tools.h
index 728d3eb..1475a39 100644
--- a/src/tools.h
+++ b/src/tools.h
@@ -253,6 +253,9 @@ namespace xmreg
     public_key
     get_tx_pub_key_from_received_outs(const transaction &tx);
 
+    date::sys_seconds
+    parse(const std::string& str, string format="%Y-%m-%d %H:%M:%S");
+
 }
 
 #endif //XMREG01_TOOLS_H