Implement API key verification system

vision-env/src/vision-test.py

@@ -1,11 +1,11 @@
+from genericpath import isfile
 import io
 import os
 import sys
 import numpy as np
 import cv2
+import json
 from pyautogui import size
-
-# Imports the Google Cloud client library
 from google.cloud import vision
 
 # Minimum score required for labels detection
@@ -14,25 +14,42 @@ MIN_SCORE_REQUIRED = 0.80
 def shape_selection(event, x, y, flags, param):
     # grab references to the global variables
     global ref_point, crop
-  
+
     # if the left mouse button was clicked, record the starting
     # (x, y) coordinates and indicate that cropping is being performed
     if event == cv2.EVENT_LBUTTONDOWN:
         ref_point = [(x, y)]
-  
+
     # check to see if the left mouse button was released
     elif event == cv2.EVENT_LBUTTONUP:
         # record the ending (x, y) coordinates and indicate that
         # the cropping operation is finished
         ref_point.append((x, y))
-  
+
         # draw a rectangle around the region of interest
         cv2.rectangle(image, ref_point[0], ref_point[1], (0, 255, 0), 2)
         cv2.imshow("image", image)
 
-key_rel_path= os.path.join('..', 'keys', 'developerKey.json')
-key = os.path.abspath(key_rel_path)
-os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = key
+# If a key is present in /keys and has a correct name, add it to enviroment variable
+key_folder   = os.path.join("..", "keys")
+key_names  = ["devKey.json",
+              "devkey.json",
+              "developerkey.json",
+              "developerKey.json"]
+
+for i in key_names:
+    success = False
+    key_rel_path = os.path.join(key_folder, i)
+    key_abs_path = os.path.abspath(key_rel_path)
+
+    if os.path.exists(key_abs_path):
+        success = True
+        os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = key_abs_path
+        break
+
+if not success:
+    print("API keys not found on '~/$YOUR_ENV_NAME/keys'. Closing executable.")
+    sys.exit(0)
 
 # User input from the command line
 image_name = sys.argv[1]
@@ -47,11 +64,11 @@ if not(os.path.exists(file_name)):
 
         # Press q to exit or enter correct path
         userin = input("Enter the correct path or press q to quit: ")
-        if userin != "q" or "Q":
+        if userin == "q" or "Q":
+            sys.exit(0)
+        else:
             file_name = userin
             break
-        else:
-            sys.exit(0)
 
 # Initialize the list of reference point
 ref_point = []
@@ -80,13 +97,13 @@ clone = image.copy()
 
 cv2.namedWindow("image")
 cv2.setMouseCallback("image", shape_selection)
-   
+
 # keep looping until the 'q' key is pressed
 while True:
     # display the image and wait for a keypress
     cv2.imshow("image", image)
     key = cv2.waitKey(1) & 0xFF
-  
+
     # press 'r' to reset the window
     if key == ord("r"):
         image = clone.copy()
@@ -94,24 +111,22 @@ while True:
     # press 'q' to quit
     if key == ord("q"):
         sys.exit(0)
-  
+
     # if the 'c' key is pressed, break from the loop
     elif key == ord("c"):
         break
-  
+
 if len(ref_point) == 2:
-    crop_img = clone[ref_point[0][1]:ref_point[1][1], ref_point[0][0]:
-                                                           ref_point[1][0]]
+    crop_img = clone[ref_point[0][1]:ref_point[1][1], ref_point[0][0]:ref_point[1][0]]
     #cv2.imshow("crop_img", crop_img)   #uncomment --> show cropped image
     cv2.waitKey(0)  #maybe useless
-    cv2.imwrite('copy1.jpg', crop_img)
-  
+    cv2.imwrite(os.path.join("..", "images/testset/test0/copy1.jpg"), crop_img)
+
 # close all open windows
-cv2.destroyAllWindows() 
+cv2.destroyAllWindows()
 
 # File used for label detection
-target_file = os.path.abspath('copy1.jpg')
-
+target_file = os.path.abspath(os.path.join("..", "images/testset/test0/copy1.jpg"))
 # Loads the image into memory
 with io.open(target_file, 'rb') as image_file:
     content = image_file.read()