Simplified logic, changed http to https everhwere, skip files already downloaded

Springer-Libros.py

@@ -12,40 +12,42 @@
 #############################################
 import PyPDF2
 import urllib3
+import os
 import wget
 
-def download(part_page_url):
-    http =urllib3.PoolManager()
 
-    page_url="https"+part_url
+def download_book_from_page(page_url):
+    http = urllib3.PoolManager()
 
-    res =http.request('GET',page_url)    
+    res = http.request('GET', page_url)
 
-    title=''.join(res.data.decode('utf-8').split('h1')[1].split('>')[1].split('<')[0].split('/')[0])+".pdf"
+    title = ''.join(res.data.decode('utf-8').split('h1')[1].split('>')[1].split('<')[0].split('/')[0])+".pdf"
+    
+    # skip books already downloaded
+    if os.path.isfile(title):
+        return
 
-    dl_url="https://link.springer.com/content/"+res.data.decode('utf-8').split('Download book PDF')[0].split('content/')[1].split('title')[0].split('.pdf')[0]+".pdf"
+    download_url = "https://link.springer.com/content/"+res.data.decode('utf-8').split('Download book PDF')[0].split('content/')[1].split('title')[0].split('.pdf')[0]+".pdf"
 
-    wget.download(dl_url,title)
+    wget.download(download_url, title)
 
 
-file =open('Spring.pdf','rb')
+def process_books_in_pdf(pdf):
+    for i in range(0, pdf.numPages):
+        lines = pdf.getPage(i).extractText().split('\n')
 
-f= PyPDF2.PdfFileReader(file)
+        for i in range(len(lines)):
+            if lines[i].startswith("http://"):
+                # changing protocol from http to https
+                url = "https://"+lines[i][7:]
+                print(url)
+                download_book_from_page(url)
 
 
-for i in range(0,f.numPages):
+def main():
+    file = open('Spring.pdf', 'rb')
+    pdf = PyPDF2.PdfFileReader(file)
+    process_books_in_pdf(pdf)
 
-    if i ==0:
-
-        for j in range (0, len(f.getPage(i).extractText().split('OpenURL')[1].split('ht'))):
-            if f.getPage(i).extractText().split('OpenURL')[1].split('ht')[j].split('\n')[0] != '':
-                print(f.getPage(i).extractText().split('OpenURL')[1].split('ht')[j].split('\n')[0])
-                foo(f.getPage(i).extractText().split('OpenURL')[1].split('ht')[j].split('\n')[0])
-
-    else:
-        for j in range (0, len(f.getPage(i).extractText().split('ht'))):
-            if f.getPage(i).extractText().split('ht')[j].split('\n')[0] !='':
-                if len(f.getPage(i).extractText().split('ht')[j].split('\n')[0])==64:
-                    print(f.getPage(i).extractText().split('ht')[j].split('\n')[0])
-                    foo(f.getPage(i).extractText().split('ht')[j].split('\n')[0])
 
+main()