1 This file contains features that need work. If you wish to tackle
2 any of them, please post a quick message to the mailing list of your
3 intentions, in order to avoid duplication of effort.
5 If you would like help or more information on any of these items,
6 please ask on the mailing list as well.
9 <cdfrey@foursquare.net>
14 Porting opensync plugin to opensync 0.40
15 ----------------------------------------
16 There's two options to this item:
21 The difference between opensync 0.22 and 0.40 involves some API changes.
22 You should be able to note the changes in the example plugin code once
25 The simple way involves merely updating Barry's opensync plugin to match
26 the new API. This shouldn't be too difficult, but you may run across
29 The proper way involves:
31 - switching from the vcard/vevent formats to the opensync XML
33 - switching from storing state information in text files to
34 storing it in the built in database (optional)
35 - making use of the new opensync time APIs to properly support
36 timezones for all time operations
38 Switching away from text based vcard and vevent formats will remove
39 the burden of raw data parsing and formatting from the plugin itself,
40 and make use of the more tested opensync library. Any bugs fixed
41 in opensync's parsers will automatically fix bugs in the Barry plugin.
43 Switching state storage formats may allow for greater flexibility
44 in supporting multiple devices. This needs more research, but it
45 is the "way things are done" in opensync, and likely worth moving
48 Support for timezones will likely stress the opensync API as well as
49 the Barry API, but definitely needs to be done for completeness on both
50 sides of the equation.
52 Estimated time: simple way: 10 hours if lucky
53 proper way: open ended
57 Reverse engineer the new TimeZones database
58 -------------------------------------------
59 This is a relatively light but important project for those that want to
62 In relation to the above opensync porting, the new TimeZones database
63 found in devices such as the BlackBerry 8830, will need to be reverse
64 engineered in order to fully support timezone conversions.
66 I have sample data of these databases in hex dump format for anyone
67 who wishes to take a stab at it. If you have a newer device,
68 you can retrieve this data yourself using:
73 - reverse engineer the record
74 - write and test the parser
75 - no builder needed, as it is a read-only database
76 Estimated time: 4 hours
80 Reverse engineering java loader protocol
81 ----------------------------------------
82 This has not been done by any opensource Blackberry project out there,
83 to my knowledge, and would be most useful to Blackberry application
86 If you are a Blackberry app developer, this may interest you.
88 Estimated time: open ended
92 Adding GPRS / CDMA modem support
93 --------------------------------
94 Barry has had plans to include modem support for a few months now, but
95 it has not yet percolated to the surface.
97 The primary source for modem protocol specifics is the XmBlackBerry
98 project (http://sourceforge.net/projects/XmBlackBerry). Barry's
99 goal is to create a standalone pppob utility that can be configured
100 with pppd similarly to pppoe.
102 The tricky part of modem support is that it requires threading support,
103 especially if you intend to use the database at the same time.
104 This leads to some architectural challenges that need to be dealt with:
106 As Barry is not a single application, how do you access the
107 database while pppob is using the modem?
109 There are two viable ways of dealing with this. One involves placing
110 a (hopefully thin) driver in the kernel, and the other involves using
111 a daemon and RPC calls.
113 My preference is to implement this using RPC calls if needed, and hammer
114 out all the implementation details in user space. Once they are well
115 understood, a smaller kernel driver hook may be more easily written
116 that supports routing messages according to socket or application
117 needs. For example, one application may register an interest in
118 database messages, another in javaloader messages, and another in the
119 multiple modem socket messages.
121 There is currently a development branch in CVS that intends to support
122 optional threading support in the Barry library, so that at least
123 it should be possible to use both the database and the modem in the
126 Estimated tasks (assuming threading support is finished):
127 - copy protocol specifics from XmBlackBerry
128 - add Serial class for controller interface
129 - write and test pppob
130 - write pppob manpage
131 Estimated time: 8 hours
135 Finish the threaded architecture changes in CVS branch
136 ------------------------------------------------------
137 For the reasons outlined above, for modem support, this CVS branch
138 needs to be finished. For more information, contact the mailing list.
141 - write SocketRouting code
142 - refactor the controller class into RAII behaving
143 mode classes, such as Desktop, Serial, and
144 Javaloader, that operate on top of Controller
145 - testing threaded and non-threaded behaviour
146 - testing performance impact
147 Estimated time: 20 hours
151 Add bluetooth serial support
152 ----------------------------
153 It is reported that it is possible to access the database through
154 Bluetooth using the older Blackberry serial protocol. XmBlackBerry
155 has support for this and may be used as a reference.
157 The goal here would be to hide the bluetooth access behind the
158 same Barry library API, so that syncing with the opensync plugin
159 would be seamless whether plugged in via USB or Bluetooth.
162 - research and design serial protocol stack to reuse as much
163 library code as possible
164 Estimated time: unknown
168 Write simple GUI for streamlining sync setup and action
169 -------------------------------------------------------
170 Syncing setup and operation is currently a tedious, complicated task.
171 A GUI that performed all the detailed setup and configuration work,
172 for a Blackberry-specific sync, using opensync libraries and plugins
173 for Evolution, Sunbird, etc, would be very helpful.
175 This would be much easier for an experienced GUI programmer, but there is
176 a learning curve for the opensync API.
179 - document the settings required for Blackberry, and
180 all intended plugins required
181 - write application that:
182 - does the opensync configuration through the opensync
184 - scans the USB bus for available Blackberry devices using
186 - lives in the system tray watching for Blackberry devices
187 - if aiming for super ease of use, script a source build of
188 all needed opensync components and install in private
189 area to avoid conflict with system
190 Estimated time: unknown
191 Note: Depending how fast HAL, OpenSync, and Conduit are implemented,
192 this may never be needed... but if it existed today, there's a
193 lot of users who would be very happy...
197 Document the USB protocol
198 -------------------------
199 Currently the only english documentation for the Blackberry protocol
200 is the webpage by the Cassis project (found at
201 http://off.net/cassis/protocol-description.html).
203 The USB protocol is not nearly so well documented. The best documentation
204 available can be found in the Barry header files: protocol.h and
207 Translating the code into documentation (into a wiki, that will hopefully
208 soon be available) is a great way to get involved in the project and
209 learn a lot about the Blackberry from a low level.
211 Unfortunately, Jedi mind tricks don't often work when trying to convince
212 people to write documentation for me... :-)
215 - write, write, write
216 Estimated time: 40 hours (documentation expands to fill available time...)
222 Code can always be improved. There are two big ways to help:
224 - write an application using the Barry library
225 - improve the Barry library itself and send patches
227 By writing an application, you can provide crucial feedback on the ease
228 of use of the Barry API. I'm very eager for such feedback.
230 Secondly, there is currently a lot of code ducplication in the record
231 classes, and a careful refactoring is required. I would be open to a class
232 hierarchy, with possibly private or protected inheritance. My primary
233 concern is object safety when using the record classes as objects in
234 STL containers, with a secondary concern to make it easier to
235 abstractly work with a record. This implies a careful mix of
236 virtual functions and a generic record base class. Patches in this
237 area will be thoughtfully considered.
239 Estimated tasks (refactoring):
240 - design safe hierarchy
241 - move common code to base class
242 - make sure all record classes use the common record API
244 Estimated time: 7 hours
250 For those that write applications in C, a C API wrapper has been started
251 in the cbarry.h header. It has not yet been implemented, but should be
255 - finish some API design work (head not fully complete)
256 - implement all functions (about 50)
257 - write test application, or test suite, for C API
258 Estimated time: unknown
262 Python wrappers and example code
263 --------------------------------
264 For those that write applications in Python, a SWIG wrapper has been
265 started by H Miz Jones. This is partially functional, and involves
266 working with the Barry API, and may introduce changes to it depending
267 how hard it is to translate things to the Python world.
269 The SWIG wrapper scripts have not yet been publically released, but
270 please contact me if you are interested.
273 - finish C++ / Python integration (possible template issues)
274 - finish SWIG wrapper
275 Estimated time: unknown
279 Command line backup and restore
280 -------------------------------
281 The only command line backup currently available is the one in btool,
282 using the -f and -s switches. This does not backup exact data from
283 the device, but parses it, stores it in the Boost serialization format,
284 and then reverses the process for restore. This is a great test
285 for the Barry library, but not so great for backup, since not all
286 databases can be parsed.
288 There is already an exact backup and restore interface with the GUI, but
289 there is a lot of useful functionality trapped in a layer of GUI
290 that could be just as useful from the command line. Tasks such as a nightly
291 cron backup of any Blackberry devices attached to the system would be more
292 easily done via command line.
294 You could add command line arguments to the barrybackup program to skip
295 the GUI (tricky and possibly error prone), or you could pull the backup
296 functionality into a standalone command line utility (more work, but smarter
297 in the long run). This is mostly a code refactoring job, consisting of
298 all working code that's already there, and I know there are people
299 who would thank you. :-)
302 - split out tar and backup functionality code into shared library
303 - write and test command line tool
304 Estimated time: 6 hours
308 Misc Low Level Todo Items:
309 --------------------------
310 - test whether sorting of contact records is required before
311 uploading data to the device... test whether it is ok
312 to upload a GroupLink item in the middle of a contact
313 upload, even before all the groups have been sent...
314 if ok, remove the sorting code from Contact, Message, and