Merge branch 'master' of ssh://forge.chapril.org:222/bortzmeyer/Web-LangTag

search.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+
+# You can test it with:
+# curl --request POST  --data name=foobar http://localhost:4000
+
+import wsgiref.simple_server as server
+import urllib.parse
+
+import psycopg2
+
+PORT = 4000
+
+def pack(start_response, status, data):
+    datae = data.encode() # Always encode to UTF-8
+    response_headers = [("Content-type", "text/plain; charset=UTF-8"),
+                        ("Content-Length", str(len(datae)))]
+    start_response(status, response_headers)
+    return [datae]
+
+def application(environ, start_response):
+    if environ["REQUEST_METHOD"] != "POST":
+        status = "405 Method unavailable"
+        output = "Unsupported HTTP method \"%s\"\r\n" % environ["REQUEST_METHOD"]
+        return pack(start_response, status, output)
+    try:
+        body_size = int(environ.get("CONTENT_LENGTH", 0))
+    except (ValueError):
+        body_size = 0
+    body = environ["wsgi.input"].read(body_size)
+    query = urllib.parse.parse_qsl(body.decode())
+    form = {}
+    for q in query:
+        form[q[0]] = q[1]
+    for mandatory in ["string", "what"]:
+        if mandatory not in form:
+            status = "400 Invalid request"
+            output = "Missing \"%s\" in request\r\n" % mandatory
+            return pack(start_response, status, output)
+    # TODO case-insensitive (scripts are capitalized)
+    if form["what"] == "language":
+        sql = "SELECT * FROM Languages WHERE code = %s"
+    elif form["what"] == "script":
+        sql = "SELECT * FROM Scripts WHERE code = %s" 
+    else:
+        status = "400 Invalid request"
+        output = "Unknown search category \"%s\"\r\n" % form["what"]
+        return pack(start_response, status, output)
+    # TODO junctions
+    # TODO search in descriptions
+    cursor.execute(sql, (form["string"], ))
+    mytuple = cursor.fetchone()
+    status = "200 OK"
+    output = "TODO %s\r\n" % str(mytuple) # TODO display comments, preferredscript, addition date etc
+    # TODO HTML with a templating engine?
+    # TODO link to mulhtml ?
+    return pack(start_response, status, output)
+
+if __name__ == "__main__":
+    conn = psycopg2.connect("dbname=lsr")
+    cursor = conn.cursor()
+    httpd = server.make_server("", PORT, application)
+    print("Listening on port %s" % PORT)
+    httpd.serve_forever()

search.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<page title="Search TODO">
+  <p>TODO</p>
+  <form action="http://localhost:4000/" method="POST" name="Search">
+    <p>Name: <input type="text" name="string"/></p>
+    <p>Search in: <select name="what">
+     <option value="language">Languages</option>
+     <option value="script">Scripts</option>
+    </select></p>
+    <p><input type="submit" value="Search"/></p>
+  </form>
+</page>