Patch level :

Files correlati     :
Ricompilazione Demo : [ ]
Commento            :
Aggiunta gestione protocollo HTTP tramite le chiamate http_get e http_get_dir


git-svn-id: svn://10.65.10.50/trunk@6971 c028cbd2-c16b-5b4b-a496-9718f37d4682

include/isamrpc.cpp

@@ -23,7 +23,7 @@ bool rpc_Start()
     {
       delete _client;
       _client = NULL;
-      ok = error_box("Errore di inizializzazione del client.");
+      ok = error_box("Errore di inizializzazione del socket client");
     }  
   }
   return ok;
@@ -287,3 +287,40 @@ bool rpc_UserLogout()
   return TRUE;
 }
 
+
+bool http_get(const char* server, 
+              const char* remote_file, 
+              const char* local_file)
+{
+  TSocketClient client;
+  if (!client.IsOk())
+    return error_box("Impossibile inizializzare il client HTTP");
+
+  unsigned long connection = client.QueryConnection("80", server);
+  bool ok = connection != 0;
+  if (ok)
+  {
+    ok = client.HttpGetFile(remote_file, local_file) != 0;
+    client.RemoveConnection(connection);
+  }
+
+  return ok;
+}
+
+bool http_dir(const char* server, const char* remote_dir, TString_array& list)
+{
+  TSocketClient client;
+  if (!client.IsOk())
+    return error_box("Impossibile inizializzare il client HTTP");
+
+  unsigned long connection = client.QueryConnection("80", server);
+  bool ok = connection != 0;
+  if (ok)
+  {
+    ok = client.HttpGetDir(remote_dir, list) != 0;
+    client.RemoveConnection(connection);
+  }
+
+  return ok;
+}
+

include/isamrpc.h

@@ -21,8 +21,10 @@ bool        rpc_UserLogin(const char* server, const char* user,
                           const char* password, const char* application);
 bool        rpc_UserLogout();  
 
-
 bool        rpc_Start();
 bool        rpc_Stop();
 
+bool        http_get(const char* server, const char* remote_file, const char* local_file);
+bool        http_dir(const char* server, const char* remote_dir, TString_array& list);
+
 #endif

include/netsock.cpp

@@ -1,5 +1,5 @@
 #define XVT_INCL_NATIVE
-#include <strings.h>
+#include "progind.h"
 
 // skstream.h
 // Copyright (C) 1995, 1996 by John C. Wang. All Rights Reserved.
@@ -18,9 +18,7 @@
 // [JCW 95-Dec-20] comments added for distribution 95a
 // [JCW 96-Jan-01] removed UDP capabilities from skstream
 
-#include <iostream.h>
+#include <fstream.h>
-#include <stdio.h>
-
 #include "winsock.h"
 
 //
@@ -517,6 +515,8 @@ TConnection* TSocketClient::OnQueryConnection(const char* service,
   if (cur_socket == NULL)
   {              
     TString strServer = server;
+    if (strServer.compare("http://", 7, TRUE) == 0)
+      strServer.ltrim(7);
     if (strServer.empty() || stricmp(strServer, "localhost") == 0)
       strServer = "127.0.0.1";
                  
@@ -592,3 +592,121 @@ void TSocketClient::ReleaseBuffer()
     m_dwSize = 0;
   }
 }
+
+BOOL TSocketClient::HttpGetFile(const char* remote, const char* local)
+{
+  if (!cur_socket->is_open())
+    return FALSE;
+
+  BOOL ok = FALSE;
+
+  TString buf(4096);
+  buf << "GET " << remote << " HTTP/1.0\r\n\r\n";
+
+  cur_socket->sync();
+  cur_socket->write(buf, buf.len());
+  cur_socket->flush();
+  if (cur_socket->good())
+  {
+    const clock_t start = clock();
+
+    long size = 0;
+    for (int r = 0; !cur_socket->eof(); r++)
+    {
+      cur_socket->getline(buf.get_buffer(), buf.size(), '\n');
+      if (buf.blank())
+        break;
+      if (r == 0 && buf.find("404") > 0)
+        return FALSE;    // File not found
+      if (buf.compare("Content-length:", 15, TRUE) == 0)
+      {
+        const int colon = buf.find(':');
+        size = atol(buf.mid(colon+1));
+      }
+    }
+
+    ofstream outfile(local, ios::out | ios::binary);
+    if (outfile.good())
+    {    
+      TString msg;
+      msg << remote << " - "; 
+      if (size > 1024)
+        msg << (size / 1024) << " K";
+      else
+        msg << size << ' ';
+      msg << "bytes.\nTempo residuo stimato: "; 
+      TProgind pi(size, msg, TRUE, TRUE);
+      long total = 0;
+      
+      while (!cur_socket->eof())
+      {
+        cur_socket->read(buf.get_buffer(), buf.size());
+        const int count = cur_socket->gcount();
+        if (count > 0)
+        {
+          outfile.write(buf, count);
+
+          total += count;
+          bool tick = pi.setstatus(total);
+          if (pi.iscancelled())
+            break;
+
+          if (tick)
+          {
+            const double estimated_ticks = double(size - total) * double(clock() - start) / total;
+            long secs = long(estimated_ticks / CLOCKS_PER_SEC) + 1;
+            CHECK(secs >= 0, "Bad time estimation");
+            const int hours = int(secs / 3600L);
+            secs %= 3600L;
+            const int mins = int(secs / 60L);
+            secs %= 60L;
+            const int append_pos = msg.find("o: ")+3;
+            msg.cut(append_pos);
+            TString16 tempo; 
+            tempo.format("%02d:%02d:%02ld", hours, mins, secs);
+            msg << tempo;
+            pi.set_text(msg);
+          }
+        }
+      }
+      ok = pi.isfinished();
+    } 
+    else 
+      error_box("Impossibile scrivere il file %s", local);
+  }
+
+  return ok;
+}
+
+BOOL TSocketClient::HttpGetDir(const char* remote, TString_array& list)
+{
+  TFilename local; local.temp();
+  const BOOL ok = HttpGetFile(remote, local);
+  if (ok)
+  {
+    ifstream s(local);
+    TString riga(1024);
+    while (!s.eof())
+    {
+      s.getline(riga.get_buffer(), riga.size());
+      const int href = riga.find("HREF=");
+      if (href > 0)
+      {
+        const int start = riga.find('"', href) + 1;
+        if (start > href)
+        {
+          const int stop  = riga.find('"', start);
+          if (stop > start)
+          {
+            const TString& name = riga.sub(start, stop);
+            list.add(name);
+          }
+        }
+      }
+    }
+    s.close();
+    ::remove(local);
+  }
+
+  return ok;
+}

include/netsock.h

@@ -53,6 +53,9 @@ public:
   virtual void ReleaseBuffer();
   virtual BOOL IsOk() const { return TRUE; }
 
+  BOOL HttpGetFile(const char* remote, const char* local);
+  BOOL HttpGetDir(const char* remote, TString_array& list);
+
   TSocketClient();
   virtual ~TSocketClient();
 };