3 4def0885 2021-03-12 op |_ _|.-----.| |.-----.-----.----.-----.-----.-----.
4 4def0885 2021-03-12 op | | | -__|| || -__|__ --| __| _ | _ | -__|
5 4def0885 2021-03-12 op |___| |_____||__||_____|_____|____|_____| __|_____|
9 cd302034 2021-03-15 op Telescope is a w3m-like browser for Gemini.
11 cd302034 2021-03-15 op At the moment, it's something **a bit more than a working demo**.
12 cd302034 2021-03-15 op However, it has already some interesting features, like streaming
13 cd302034 2021-03-15 op pages, tabs, privsep, input from the minibuffer etc...
15 4def0885 2021-03-12 op There are still various things missing or, if you prefer, various
16 4def0885 2021-03-12 op things that you can help develop :)
18 2058a15d 2021-03-13 op - UTF8 handling: it needs to handle non-ASCII characters in pages and
19 4def0885 2021-03-12 op in the minibuffer input
20 4def0885 2021-03-12 op - subscriptions
21 3be78a24 2021-03-17 op - tofu oob verification
22 4def0885 2021-03-12 op - client certificates
23 97e30cc6 2021-03-14 op - add other GUIs: atm it uses only ncurses, but telescope shouldn't
24 97e30cc6 2021-03-14 op be restricted to TTYs only!
25 97e30cc6 2021-03-14 op - configuration file: even proposals are accepted. It needs a way to
26 97e30cc6 2021-03-14 op define keybindings, colors etc in a way that will possibly work on
27 4def0885 2021-03-12 op more than one graphic libraries.
29 2058a15d 2021-03-13 op 
32 cd302034 2021-03-15 op ## Why yet another browser?
34 cd302034 2021-03-15 op One of the great virtues of Gemini is its simplicity. It means that
35 cd302034 2021-03-15 op writing browsers or server is easy and thus a plethora of those
36 cd302034 2021-03-15 op exists. I myself routinely switch between a couple of them, depending
39 cd302034 2021-03-15 op More browsers brings more stability as it became more difficult to
40 cd302034 2021-03-15 op change the protocol, too.
42 cd302034 2021-03-15 op However, Telescope was ultimately written for fun, on a whim, just to
43 cd302034 2021-03-15 op play with ncurses, libtls, libevent and the macros from `sys/queue.h`,
44 cd302034 2021-03-15 op but I'd like to finish it into a complete Gemini browser.
49 cd302034 2021-03-15 op - Fun: hacking on Telescope should be fun.
50 cd302034 2021-03-15 op - Clean: write readable and clean code mostly following the style(9)
51 cd302034 2021-03-15 op guideline. Don't become a kitchen sink.
52 cd302034 2021-03-15 op - Secure: write secure code with privilege separation to mitigate the
53 cd302034 2021-03-15 op security risks of possible bugs.
54 cd302034 2021-03-15 op - Fast: it features a modern, fast, event-based asynchronous I/O
55 cd302034 2021-03-15 op model, it shouldn't never lags behind the user input.
56 656b4b64 2021-03-16 op - Cooperation: re-use existing conventions to allow inter-operations
57 656b4b64 2021-03-16 op and easy migrations from/to other clients.
62 3be78a24 2021-03-17 op Telescope aims to use the "Trust, but Verify (where appropriate)"
63 3be78a24 2021-03-17 op approach outlined here:
64 3be78a24 2021-03-17 op [gemini://thfr.info/gemini/modified-trust-verify.gmi](gemini://thfr.info/gemini/modified-trust-verify.gmi).
66 3be78a24 2021-03-17 op The idea is to define three level of verification for a certificate:
68 3be78a24 2021-03-17 op - **untrusted**: the server fingerprint does NOT match the stored
70 3be78a24 2021-03-17 op - **trusted**: the server fingerprint matches the stored one
71 3be78a24 2021-03-17 op - **verified**: the fingerprint matches and has been verified
72 3be78a24 2021-03-17 op out-of-band by the client.
74 3be78a24 2021-03-17 op Most of the time, the `trusted` level is enough, but where is
75 3be78a24 2021-03-17 op appropriate users should be able to verify out-of-band the
78 3be78a24 2021-03-17 op At the moment there is no support for oob-verification though.
83 4def0885 2021-03-12 op Telescope depends on ncursesw, libtls (from either LibreSSL or
84 4def0885 2021-03-12 op libretls), libevent (either v1 or v2).
86 97e30cc6 2021-03-14 op To build from a release tarball just execute:
90 4def0885 2021-03-12 op sudo make install
92 4def0885 2021-03-12 op If you want to build from the git checkout, something that's
93 cd302034 2021-03-15 op discouraged for users that don't intend to hack on telescope
98 4def0885 2021-03-12 op sudo make install # eventually
100 4def0885 2021-03-12 op Please keep in mind that the main branch, from time to time, may be
101 4def0885 2021-03-12 op accidentally broken on some platforms. Telescope is developed
102 4def0885 2021-03-12 op primarily on OpenBSD/amd64 and commits on the main branch don't get
103 4def0885 2021-03-12 op always tested in other OSes. Before tagging a release however, a
104 4def0885 2021-03-12 op comprehensive testing on various platform is done to ensure everything
105 4def0885 2021-03-12 op is working as intended.
110 4def0885 2021-03-12 op Telescope is distributed under a BSD-style licence. The main code is
111 4def0885 2021-03-12 op under the ISC but some files under `compat/` are BSD2 or BSD3.
