Organisation, documentation, mathlib

extlibs/request/request.cpp

@@ -0,0 +1,52 @@
+#include "ground_lib.h"
+
+#include <cpr/cpr.h>
+#include <cpr/interface.h>
+#include <fstream>
+
+void error(std::string status) {
+    std::cout << "Request error: " << status << std::endl;
+}
+
+GroundValue simpleRequest(GroundValue* args, int arg_count) {
+    VALIDATE_ARGS_1(GROUND_STRING);
+
+    cpr::Response r = cpr::Get(cpr::Url(GET_STRING(args[0])));
+
+    if (!(r.status_code >= 200 && r.status_code < 300)) {
+        error("Non zero HTTP code " + std::to_string(r.status_code));
+        return ground_string_val("Error code " + std::to_string(r.status_code));    
+    }
+    
+    return ground_string_val(r.text);
+}
+
+GroundValue saveContents(GroundValue* args, int arg_count) {
+    VALIDATE_ARGS_2(GROUND_STRING, GROUND_STRING);
+
+    std::ofstream file(GET_STRING(args[1]), std::ios::binary);
+
+    if (file.good()) {
+        cpr::Response r = cpr::Download(file, cpr::Url{GET_STRING(args[0])});
+
+        if (!(r.status_code >= 200 && r.status_code < 300)) {
+            error("Non zero HTTP code " + std::to_string(r.status_code));
+            return GROUND_BOOL_VAL(false);
+        }
+    } else {
+        error(std::string("Cannot open file ") + GET_STRING(args[1]) + " for writing");
+        return GROUND_BOOL_VAL(false);
+    }
+
+    return GROUND_BOOL_VAL(true);
+}
+
+GROUND_LIBRARY_INTERFACE()
+
+GROUND_LIBRARY_INIT()
+    REGISTER_GROUND_FUNCTION(simpleRequest);
+    REGISTER_GROUND_FUNCTION(saveContents);
+GROUND_LIBRARY_INIT_END()
+
+GROUND_LIBRARY_CLEANUP()
+GROUND_LIBRARY_CLEANUP_END()