wait and retry scraping if punish page encountered

.gitignore

@@ -4,3 +4,4 @@ settings.yaml
 __pycache__/*
 src/__pycache__/*
 web/test.html
+*.csv

src/aliexpress.py

@@ -31,6 +31,7 @@ def check_item(settings_item):
     item_regex = re.compile(r'skuAttr\\\":\\\"(([0-9]*:[0-9;:]*#?[a-zA-Z0-9 \.\-]*;?)*)?\\\",\\\"skuId\\\":([0-9]*),\\\"skuIdStr\\\":\\\"[0-9]*\\\",\\\"skuPropIds\\\":\\\"[0-9,]*\\\",\\\"skuVal\\\":{\\\"availQuantity\\\":([0-9]*),(\\\"bulkOrder\\\":([0-9]*),)?(\\\"discount\\\":\\\"([0-9]*)\\\",\\\"discountTips\\\":\\\"-[0-9]*%\\\",)?\\\"hideOriPrice\\\":(false|true),\\\"inventory\\\":([0-9]*),\\\"isActivity\\\":(true|false),\\\"optionalWarrantyPrice\\\":\[\],(\\\"skuActivityAmount\\\":{\\\"currency\\\":\\\"([A-Z]*)\\\",\\\"formatedAmount\\\":\\\"[0-9]*,[0-9]*.\\\",\\\"value\\\":([0-9]*\.[0-9]*)},\\\"skuActivityAmountLocal\\\":\\\"[0-9]*,[0-9]*.\|[0-9]*\|[0-9]*\\\",)?\\\"skuAmount\\\":{\\\"currency\\\":\\\"([A-Z]*)\\\",\\\"formatedAmount\\\":\\\"[0-9]*,[0-9]*.\\\",\\\"value\\\":([0-9]*\.[0-9]*)}')
     choice_regex = re.compile(r'businessModel\\\":\\\"CHOICE\\\"')
     magnifier_image_regex = re.compile(r'<meta property=\"og:image\" content=\"(https:[0-9a-zA-Z\/\-\_.]*)\"\/>')
+    punish_regex = re.compile(r'(pid: \'punish-page\')|(Deny from x5)')
 
     session = requests.Session()
     cookies_file_path = os.path.dirname(os.path.realpath(__file__))+'/cookies.json'
@@ -46,6 +47,11 @@ def check_item(settings_item):
     url = 'https://aliexpress.com/item/'+str(item)+'.html'
     target_page_response = session.get(url)
     if target_page_response.status_code == 200:
+
+        punish = bool(re.search(punish_regex, target_page_response.text))
+        if punish:
+            raise ValueError("punish")
+
         content = re.findall(item_regex, target_page_response.text)
         is_choice = bool(re.search(choice_regex, target_page_response.text))
         for elem in content:
@@ -96,10 +102,27 @@ def fill_db(items_dict):
 def update_items():
     '''add new history entries for items in database'''
     in_db = get_item_keys()
+    retry = []
     for item in in_db:
         time.sleep(2)
-        new_entry = check_item(item)
-        fill_db(new_entry)
+        try:
+            new_entry = check_item(item)
+            fill_db(new_entry)
+        except ValueError:
+            retry.append(item)
+    return retry
+
+def retry_update(retry_list):
+    '''update entries from the retry list only'''
+    retry = []
+    for item in retry_list:
+        time.sleep(2)
+        try:
+            new_entry = check_item(item)
+            fill_db(new_entry)
+        except ValueError:
+            retry.append(item)
+    return retry
 
 
 

src/app.py

@@ -1,6 +1,6 @@
 from flask import Flask, request, jsonify, render_template
 from flask_cors import CORS
-import requests, re, json, os, yaml
+import requests, re, json, os, yaml, time
 from db import *
 from aliexpress import *
 
@@ -21,7 +21,12 @@ def init_db():
 @app.route('/update', methods = ['GET'])
 def update_hist():
     print("update")
-    update_items()
+    retry = update_items()
+    retry_count = 0
+    while len(retry)>0 and retry_count < 12:
+        time.sleep(300) # wait 5 minutes between each retry
+        retry = retry_update(retry)
+        retry_count += 1
     return 'items updated'
 
 @app.route('/app/add', methods=['POST'])
@@ -34,20 +39,23 @@ def add_item():
     attributes = data.get('attributes', '').split(',') if data.get('attributes') else []
 
     new_item = [itemid, attributes]
-    extr = check_item(new_item)
+    try:
+        extr = check_item(new_item)
+    except ValueError:
+        return jsonify({'status': 4, "info": "aliexpress punish page"}), 400
 
     if len(extr) > 0:
         skuid = list(extr.values())[0]["skuid"]
         if check_exist(itemid, skuid):
             # item already exists
-            return jsonify({'status': 3}), 400
+            return jsonify({'status': 3, "info": "item already exists"}), 400
         else:
             # item is valid
             fill_db(extr)
-            return jsonify({'status': 0}), 200
+            return jsonify({'status': 0, , "info": "item added to database"}), 200
     else:
         # item not valid or can't be parsed
-        return jsonify({'status': 1}), 400
+        return jsonify({'status': 1, "info": "item not valid or can't be parsed"}), 400
 
 @app.route('/app/delete', methods=['POST'])
 def del_item():

src/main.py

@@ -34,9 +34,9 @@ if __name__ == '__main__':
     c_l = ["1005005824413309", ["00350"]]
     print(check_item(c_l))
 
-    # TODO : fix regex for this item
-    c_l = ["1005005777900699", ["Black"]]
-    print(check_item(c_l))
+    #
+    # c_l = ["1005005777900699", ["Black"]]
+    # print(check_item(c_l))
     # print(get_item_keys())
 
     # initialize(settings["db"])