1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
WWWOFFLE - World Wide Web Offline Explorer - Version 2.9f
=========================================================
The WWWOFFLE programs simplify World Wide Web browsing from computers that use
intermittent connections to the internet.
Description
-----------
The WWWOFFLE server is a proxy web server with special features for use with
intermittent internet links. This means that it is possible to browse web pages
and read them without having to remain connected.
Basic Features
- Caching of HTTP, FTP and finger protocols.
- Allows the 'GET', 'HEAD', 'POST' and 'PUT' HTTP methods.
- Interactive or command line control of online/offline/autodial status.
- Highly configurable.
- Low maintenance, start/stop and online/offline status can be automated.
While Online
- Caching of pages that are viewed for later review.
- Conditional fetching to only get pages that have changed.
- Based on expiration date, time since last fetched or once per session.
- Non cached support for SSL (Secure Socket Layer e.g. https).
- Caching for https connections. (compile time option).
- Can be used with one or more external proxies based on web page.
- Control which pages cannot be accessed.
- Allow replacement of blocked pages.
- Control which pages are not to be stored in the cache.
- Create backups of cached pages when server cannot be contacted.
- Option to create backup when server sends back an error page.
- Requests compressed pages from web servers (compile time option).
- Requests chunked transfer encoding from web servers.
While Offline
- Can be configured to use dial-on-demand for pages that are not cached.
- Selection of pages to download next time online
- Using normal browser to follow links.
- Command line interface to select pages for downloading.
- Control which pages can be requested when offline.
- Provides non-cached access to intranet servers.
Automated Download
- Downloading of specified pages non-interactively.
- Options to automatically fetch objects in requested pages
- Understands various types of pages
- HTML 4.0, Java classes, VRML (partial), XML (partial).
- Options to fetch different classes of objects
- Images, Stylesheets, Frames, Scripts, Java or other objects.
- Option to not fetch webbug images (images of 1 pixel square).
- Automatically follows links for pages that have been moved.
- Can monitor pages at regular intervals to fetch those that have changed.
- Recursive fetching
- To specified depth.
- On any host or limited to same server or same directory.
- Chosen from command line or from browser.
- Control over which links can be fetched recursively.
Convenience
- Optional information footer on HTML pages showing date cached and options.
- Options to modify HTML pages
- Remove scripts.
- Remove Java applets.
- Remove stylesheets.
- Remove shockwave flash animations.
- Indicate cached and uncached links.
- Remove the blink tag.
- Remove the marquee tag.
- Remove refresh tags.
- Remove links to pages that are in the DontGet list.
- Remove inline frames (iframes) that are in the DontGet list.
- Replace images that are in the DontGet list.
- Replace webbug images (images of 1 pixel square).
- Demoronise HTML character sets.
- Fix mixed Cyrillic character sets.
- Stop animated GIFs.
- Remove Cookies in meta tags.
- Provides information about cached pages
- Headers, raw and modified.
- Contents, images, links etc.
- Source code unmodified by WWWOFFLE.
- Automatic proxy configuration with Proxy Auto-Config file.
- Searchable cache with the addition of the ht://Dig, mnoGoSearch
(UdmSearch), Namazu or Hyper Estraier programs.
- Built in simple web-server for local pages
- HTTP and HTTPS access (compile time option).
- Allows CGI scripts.
- Timeouts to stop proxy lockups
- DNS name lookups.
- Remote server connection.
- Data transfer.
- Continue or stop downloads interrupted by client.
- Based on file size of fraction downloaded.
- Purging of pages from cache
- Based on URL matching.
- To keep the cache size below a specified limit.
- To keep the free disk space above a specified limit.
- Interactive or command line control.
- Compression of cached pages based on age.
- Provides compressed pages to web browser (compile time option).
- Use chunked transfer-encoding to web browser.
Indexes
- Multiple indexes of pages stored in cache
- Servers for each protocol (http, ftp ...).
- Pages on each server.
- Pages waiting to be fetched.
- Pages requested last time offline.
- Pages fetched last time online.
- Pages monitored on a regular basis.
- Configurable indexes
- Sorted by name, date, server domain name, type of file.
- Options to delete, refresh or monitor pages.
- Selection of complete list of pages or hide un-interesting pages.
Security
- Works with pages that require basic username/password authentication.
- Automates proxy authentication for external proxies that require it.
- Control over access to the proxy
- Defaults to local host access only.
- Host access configured by hostname or IP address.
- Optional proxy authentication for user level access control.
- Optional password control for proxy management functions.
- HTTPS access to all proxy management web pages (compile time option).
- Can censor incoming and outgoing HTTP headers to maintain user privacy.
Configuration
- All options controlled using a configuration file.
- Interactive web page to allow editing of the configuration file.
- User customisable error and information pages.
- Log file or syslog reporting with user specified error level.
Changes
-------
Since version 2.9e:
Bug Fixes:
Some compilation warnings caused by flex have been removed.
When making a HEAD request use the cached version if possible.
Don't use the libgnutls-config program in the configure script.
Only remove "authorization" header if it is "basic" authentication.
Send a 304 header when online if cached page won't be refreshed.
Clarify SSL/HTTPS error messages and documentation.
Clarify last online/offline messages from 'wwwoffle -status'.
Perform MIME type tests case insensitively.
New Features:
A new option to the wwwoffle program closes and re-opens the server log file.
Documentation:
Several small fixes to documentation.
New SSL Features [*]:
A faster but less cryptographically secure key generation option is provided.
The expiration time of the SSL certificates can be increased from one year.
*NOTE* *These only apply if WWWOFFLE is compiled with SSL/https support*
Availability
------------
Version 2.9f uploaded
HTTP server: http://www.gedanken.demon.co.uk/download-wwwoffle/wwwoffle-2.9f.tgz
Web page: http://www.gedanken.demon.co.uk/wwwoffle/
Author & Copyright
------------------
This program is copyright Andrew M. Bishop 1996-2010 (amb@gedanken.demon.co.uk)
and distributed under GPL.
email: amb@gedanken.demon.co.uk
[Please put wwwoffle in the subject line]
|
