diff --git a/lib/downloader.cpp b/lib/downloader.cpp
index 3168f9e5..de4e2626 100644
--- a/lib/downloader.cpp
+++ b/lib/downloader.cpp
@@ -183,7 +183,15 @@ namespace HTTP{
           return true; // Success!
         }
         // reset the data timeout
-        reqTime = Util::bootSecs();
+        if (reqTime != Util::bootSecs()){
+          if (progressCallback != 0){
+            if (!progressCallback()){
+              WARN_MSG("Download aborted by callback");
+              return false;
+            }
+          }
+          reqTime = Util::bootSecs();
+        }
       }
       if (getSocket()){
         FAIL_MSG("Timeout while retrieving %s (%zu/%" PRIu32 ")", link.getUrl().c_str(),
@@ -239,7 +247,15 @@ namespace HTTP{
           return true; // Success!
         }
         // reset the data timeout
-        reqTime = Util::bootSecs();
+        if (reqTime != Util::bootSecs()){
+          if (progressCallback != 0){
+            if (!progressCallback()){
+              WARN_MSG("Download aborted by callback");
+              return false;
+            }
+          }
+          reqTime = Util::bootSecs();
+        }
       }
       if (getSocket()){
         FAIL_MSG("Timeout while retrieving %s", link.getUrl().c_str());
diff --git a/lib/http_parser.cpp b/lib/http_parser.cpp
index fe62e30d..11522373 100644
--- a/lib/http_parser.cpp
+++ b/lib/http_parser.cpp
@@ -751,6 +751,13 @@ bool HTTP::Parser::Read(std::string &strbuf){
   return parse(strbuf);
 }// HTTPReader::Read
 
+/// Checks download completion percentage.
+/// Returns zero if that doesn't make sense at the time or cannot be determined.
+uint8_t HTTP::Parser::getPercentage() const{
+  if (!seenHeaders || length < 1){return 0;}
+  return ((body.length() * 100) / length);
+}
+
 /// Attempt to read a whole HTTP response or request from a data buffer.
 /// If succesful, fills its own fields with the proper data and removes the response/request
 /// from the data buffer.
diff --git a/lib/http_parser.h b/lib/http_parser.h
index cbb0e265..a2080cb1 100644
--- a/lib/http_parser.h
+++ b/lib/http_parser.h
@@ -24,6 +24,7 @@ namespace HTTP{
     const std::string &GetHeader(const std::string &i) const;
     bool hasHeader(const std::string &i) const;
     void clearHeader(const std::string &i);
+    uint8_t getPercentage() const;
     const std::string &GetVar(const std::string &i) const;
     std::string getUrl();
     std::string allVars();