pcewebpython · geekwriter2 · Dec 18, 2020
diff --git a/.idea/.gitignore b/.idea/.gitignore
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
diff --git a/.idea/misc.xml b/.idea/misc.xml
diff --git a/.idea/modules.xml b/.idea/modules.xml
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
diff --git a/.idea/wsgi.iml b/.idea/wsgi.iml
diff --git a/__pycache__/bookdb.cpython-38.pyc b/__pycache__/bookdb.cpython-38.pyc
diff --git a/bookapp.py b/bookapp.py
@@ -1,23 +1,69 @@
 import re
-
+import traceback
 from bookdb import BookDB
 
 DB = BookDB()
 
 
+def resolve_path(path):
+    """"""
+    funcs = {'': books, 'book': book,}
+    path = path.strip('/').split('/')
+    func_name = path[0]
+    args = path[1:]
+    try:
+        func = funcs[func_name]
+    except KeyError:
+        raise NameError
+    return func, args
+
+
 def book(book_id):
-    return "<h1>a book with id %s</h1>" % book_id
+    page = """
+<h1>{title}</h1>
+<table>
+    <tr><th>Author</th><td>{author}</td></tr>
+    <tr><th>Publisher</th><td>{publisher}</td></tr>
+    <tr><th>ISBN</th><td>{isbn}</td></tr>
+</table>
+<a href="/">Back to the list</a>
+"""
+    book = DB.title_info(book_id)
+    if book is None:
+        raise NameError
+    return page.format(**book)
 
 
 def books():
-    return "<h1>a list of books</h1>"
+    all_books = DB.titles()
+    body = ['<h1>My Bookshelf</h1>', '<ul>']
+    item_template = '<li><a href="/book/{id}">{title}</a></li>'
+    for book in all_books:
+        body.append(item_template.format(**book))
+    body.append('</ul>')
+    return '\n'.join(body)
 
 
 def application(environ, start_response):
-    status = "200 OK"
-    headers = [('Content-type', 'text/html')]
-    start_response(status, headers)
-    return ["<h1>No Progress Yet</h1>".encode('utf8')]
+    headers = [("Content-type", "text/html")]
+    try:
+        path = environ.get('PATH_INFO', None)
+        if path is None:
+            raise NameError
+        func, args = resolve_path(path)
+        body = func(*args)
+        status = "200 OK"
+    except NameError:
+        status = "404 Not Found"
+        body = "<h1>Not Found</h1>"
+    except Exception:
+        status = "500 Internal Server Error"
+        body = "<h1>Internal Server Error</h1>"
+        print(traceback.format_exc())
+    finally:
+        headers.append(('Content-length', str(len(body))))
+        start_response(status, headers)
+        return [body.encode('utf8')]
 
 
 if __name__ == '__main__':

diff --git a/bookdb.py b/bookdb.py
@@ -1,5 +1,7 @@
 
 class BookDB():
+    """books db"""
+
     def titles(self):
         titles = [
             dict(id=id, title=database[id]['title']) for id in database.keys()

diff --git a/wsgi_1.py b/wsgi_1.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 import datetime
-
 default = "No Value Set"
 
 body = """<html>
@@ -18,21 +17,18 @@
 def application(environ, start_response):
     import pprint
     pprint.pprint(environ)
-
     response_body = body.format(
         software=environ.get('SERVER_SOFTWARE', default),
-        path="aaaa",
-        month="bbbb",
-        date="cccc",
-        year="dddd",
-        client_ip="eeee"
+        path=environ.get('PATH_INFO', default),
+        month=datetime.datetime.now().month,
+        date=datetime.datetime.now().day,
+        year=datetime.datetime.now().year,
+        client_ip= environ.get('REMOTE_ADDR', default)
     )
     status = '200 OK'
-
     response_headers = [('Content-Type', 'text/html'),
                         ('Content-Length', str(len(response_body)))]
     start_response(status, response_headers)
-
     return [response_body.encode('utf8')]