HPCC-10279 esdl_srv_engine should return HTTP exceptions

This fixes export issues that had broken the windows build, but
returns to using HTTP Exceptions.

Signed-off-by: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>

esp/bindings/bindutil.cpp

@@ -851,3 +851,28 @@ const char *mimeTypeFromFileExt(const char *ext)
        return "application/octet-stream";
     return "application/octet-stream";
 }
+
+class CEspHttpException: public CInterface, public IEspHttpException
+{
+public:
+    IMPLEMENT_IINTERFACE;
+
+    CEspHttpException(int code, const char *_msg, const char* _httpstatus) : errcode(code), msg(_msg), httpstatus(_httpstatus){ };
+    int errorCode() const { return (errcode); };
+    StringBuffer &  errorMessage(StringBuffer &str) const
+    {
+        return str.append("CEspHttpException: (").append(msg).append(")");
+    };
+    MessageAudience errorAudience() const { return (MSGAUD_user); };
+    virtual const char* getHttpStatus() {return httpstatus.get(); }
+
+private:
+    int errcode;
+    StringAttr msg;
+    StringAttr httpstatus;
+};
+
+IEspHttpException* createEspHttpException(int code, const char *_msg, const char* _httpstatus)
+{
+    return new CEspHttpException(code, _msg, _httpstatus);
+}

esp/bindings/bindutil.hpp

@@ -100,5 +100,12 @@ protected:
   cycle_t         start_time;
 };
 
+interface IEspHttpException : extends IException
+{
+    virtual const char* getHttpStatus() = 0;
+};
+
+BINDUTIL_EXPORT IEspHttpException* createEspHttpException(int code, const char *_msg, const char* _httpstatus);
+
 
 #endif

esp/bindings/http/platform/httptransport.cpp

@@ -30,13 +30,6 @@
 #include "http/platform/httptransport.ipp"
 #include "bindutil.hpp"
 
-
-
-IEspHttpException* createEspHttpException(int code, const char *_msg, const char* _httpstatus)
-{
-    return new CEspHttpException(code, _msg, _httpstatus);
-}
-
 bool httpContentFromFile(const char *filepath, StringBuffer &mimetype, MemoryBuffer &fileContents, bool &checkModifiedTime, StringBuffer &lastModified, StringBuffer &etag)
 {
     StringBuffer strfile(filepath);

esp/bindings/http/platform/httptransport.ipp

@@ -40,33 +40,6 @@
 
 #define MAX_HTTP_HEADER_LEN 4094
 
-interface IEspHttpException : extends IException
-{
-    virtual const char* getHttpStatus() = 0;
-};
-
-class CEspHttpException: public CInterface, public IEspHttpException
-{
-public:
-    IMPLEMENT_IINTERFACE;
-
-    CEspHttpException(int code, const char *_msg, const char* _httpstatus) : errcode(code), msg(_msg), httpstatus(_httpstatus){ };
-    int errorCode() const { return (errcode); };
-    StringBuffer &  errorMessage(StringBuffer &str) const
-    {
-        return str.append("CEspHttpException: (").append(msg).append(")");
-    };
-    MessageAudience errorAudience() const { return (MSGAUD_user); };
-    virtual const char* getHttpStatus() {return httpstatus.get(); }
-
-private:
-    int errcode;
-    StringAttr msg;
-    StringAttr httpstatus;
-};
-
-IEspHttpException* createEspHttpException(int code, const char *_msg, const char* _httpstatus);
-
 enum MessageLogFlag
 {
     LOGALL = 0,