Document web interface request timeout.

debian/README.Debian.web

@@ -7,3 +7,9 @@ The web interface can be configured with
 If you want to access to web interface from other
 computers, add their IP addresses in the file
 /etc/apache2/conf.d/linkchecker
+
+There is a default maximum check time of 5 minutes
+per request. After that, checking will be aborted.
+If you want to change this limit, look in the file
+/usr/share/pyshared/linkcheck/lc_cgi.py and adjust
+the variable MAX_REQUEST_SECONDS.

debian/linkchecker-web.docs

@@ -1 +1 @@
-debian/README.Debian
+debian/README.Debian.web

linkcheck/lc_cgi.py

@@ -29,6 +29,9 @@ from . import configuration, strformat, checker, director, \
     add_intern_pattern, get_link_pat, init_i18n, url as urlutil
 from .decorators import synchronized
 
+# 5 minutes timeout for requests
+MAX_REQUEST_SECONDS = 300
+
 
 def application(environ, start_response):
     """WSGI interface: start an URL check."""
@@ -148,15 +151,13 @@ def start_check (aggregate, out):
     t.start()
     # time to wait for new data
     sleep_seconds = 2
-    # 5 minutes timeout
-    max_seconds = 300
     # current running time
     run_seconds = 0
     while not aggregate.is_finished():
         yield out.get_data()
         time.sleep(sleep_seconds)
         run_seconds += sleep_seconds
-        if run_seconds > max_seconds:
+        if run_seconds > MAX_REQUEST_SECONDS:
             director.abort(aggregate)
             break
     yield out.get_data()