1 files changed, 46 insertions, 1 deletions
diff --git a/springer_dl.py b/springer_dl.py
index f104b17..a147e55 100755
--- a/springer_dl.py
+++ b/springer_dl.py
@@ -4,7 +4,52 @@ import argparse
 import os
 import sys
 import urllib.parse
-from lib.util import Parser, request, download_file, sanitize_name
+import urllib.request
+from html.parser import HTMLParser
+
+class Parser(HTMLParser):
+    def __init__(self, links=None):
+        HTMLParser.__init__(self)
+        if links is None:
+            self.links = []
+        else:
+            self.links = links
+        self.title = []
+        self.current_tag = None
+    def handle_starttag(self, tag, attrs):
+        self.current_tag = tag
+        if tag == 'a':
+            self.links.append(dict(attrs).get('href'))
+    def handle_data(self, data):
+        if self.current_tag == 'title':
+            self.title.append(data)
+
+def request(url, headers):
+    conn = urllib.request.Request(
+        url,
+        headers=headers
+    )
+    r = urllib.request.urlopen(conn)
+    return r
+
+def download_file(url, headers, dest):
+    BLOCK = 16 * 1024
+    conn = urllib.request.Request(
+        url,
+        headers=headers
+    )
+    resp = urllib.request.urlopen(conn)
+    with open(dest, 'wb') as f:
+        while True:
+            chunk = resp.read(BLOCK)
+            if not chunk:
+                break
+            f.write(chunk)
+
+def sanitize_name(name):
+    safe = (' ', '.', '_', '-')
+    name = ''.join(c for c in name if c.isalnum() or c in safe).rstrip()
+    return name
 
 if __name__ == '__main__':
     desc = 'springer-dl: download the set of books Springer released for free '\