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No commits in common. "f93d63ee0110dd85732fc00a484532bc47040283" and "71af1f03e5c53345feceefd767ff10046c65a0e6" have entirely different histories.
f93d63ee01
...
71af1f03e5
408
Cargo.lock
generated
408
Cargo.lock
generated
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@ -37,12 +37,24 @@ version = "1.0.1"
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@ -61,11 +73,8 @@ version = "0.4.19"
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[[package]]
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@ -83,6 +92,36 @@ dependencies = [
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@ -96,21 +135,6 @@ dependencies = [
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@ -148,10 +172,25 @@ dependencies = [
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@ -174,6 +213,65 @@ version = "2.4.1"
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@ -193,6 +291,15 @@ dependencies = [
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@ -203,40 +310,15 @@ checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
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@ -246,10 +328,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -268,12 +362,84 @@ version = "0.6.25"
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@ -293,14 +459,23 @@ dependencies = [
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@ -339,6 +514,18 @@ version = "0.1.9"
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@ -351,12 +538,6 @@ dependencies = [
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|
||||
checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
|
||||
|
||||
[[package]]
|
||||
name = "vec_map"
|
||||
version = "0.8.2"
|
||||
|
@ -364,10 +545,84 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
|||
checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.10.0+wasi-snapshot-preview1"
|
||||
name = "version_check"
|
||||
version = "0.9.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
|
||||
checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "632f73e236b219150ea279196e54e610f5dbafa5d61786303d4da54f84e47fce"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"wasm-bindgen-macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-backend"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a317bf8f9fba2476b4b2c85ef4c4af8ff39c3c7f0cdfeed4f82c34a880aa837b"
|
||||
dependencies = [
|
||||
"bumpalo",
|
||||
"lazy_static",
|
||||
"log",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d56146e7c495528bf6587663bea13a8eb588d39b36b679d83972e1a2dbbdacf9"
|
||||
dependencies = [
|
||||
"quote",
|
||||
"wasm-bindgen-macro-support",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-macro-support"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7803e0eea25835f8abdc585cd3021b3deb11543c6fe226dcd30b228857c5c5ab"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"wasm-bindgen-backend",
|
||||
"wasm-bindgen-shared",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wasm-bindgen-shared"
|
||||
version = "0.2.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0237232789cf037d5480773fe568aac745bfe2afbc11a863e97901780a6b47cc"
|
||||
|
||||
[[package]]
|
||||
name = "web-sys"
|
||||
version = "0.3.55"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "38eb105f1c59d9eaa6b5cdc92b859d85b926e82cb2e0945cd0c9259faa6fe9fb"
|
||||
dependencies = [
|
||||
"js-sys",
|
||||
"wasm-bindgen",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "webpki"
|
||||
version = "0.22.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f095d78192e208183081cc07bc5515ef55216397af48b873e5edcd72637fa1bd"
|
||||
dependencies = [
|
||||
"ring",
|
||||
"untrusted",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
|
@ -399,3 +654,20 @@ name = "winapi-x86_64-pc-windows-gnu"
|
|||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
|
||||
[[package]]
|
||||
name = "x509-parser"
|
||||
version = "0.12.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ffc90836a84cb72e6934137b1504d0cae304ef5d83904beb0c8d773bbfe256ed"
|
||||
dependencies = [
|
||||
"base64",
|
||||
"chrono",
|
||||
"data-encoding",
|
||||
"der-parser",
|
||||
"lazy_static",
|
||||
"nom",
|
||||
"oid-registry",
|
||||
"rusticata-macros",
|
||||
"thiserror",
|
||||
]
|
||||
|
|
|
@ -2,16 +2,17 @@
|
|||
name = "opal"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
license = "GPL-3.0-or-later"
|
||||
|
||||
[profile.release]
|
||||
lto = true
|
||||
|
||||
[dependencies]
|
||||
chrono = "0.4"
|
||||
clap = "2.33"
|
||||
env_logger = "0.9"
|
||||
log = "0.4"
|
||||
openssl = "0.10"
|
||||
mio = { version = "0.7", features = ["os-poll", "net"] }
|
||||
percent-encoding = "2.1"
|
||||
rustls = { version = "0.20", features = ["dangerous_configuration"] }
|
||||
rustls-pemfile = "0.2"
|
||||
url = "2.2"
|
||||
x509-parser = "0.12"
|
||||
|
|
114
README.md
114
README.md
|
@ -1,114 +0,0 @@
|
|||
Opal
|
||||
====
|
||||
|
||||
Opal is a Gemini server written in Rust. It is meant to serve dynamic content
|
||||
through CGI and does not serve static files. In a way, it is a companion project
|
||||
to the [Agate][agate] Gemini server which only serves static files. The
|
||||
project's goals are:
|
||||
|
||||
- Focus on a small set of features (around CGI) but do them correctly.
|
||||
- Be nice with old/stupid hardware (TLS 1.2 is OK, be efficient, etc).
|
||||
- Don't add features unless someone actively wants them in.
|
||||
- Try to keep resources (binary size, memory, etc) under tight control.
|
||||
|
||||
Opal uses the `openssl` Rust bindings, which work with OpenSSL and LibreSSL, so
|
||||
it should work properly on those platforms. I currently only support Linux
|
||||
systems but if there is interest in other platforms let's do this together!
|
||||
|
||||
Opal is licensed as GPLv3.
|
||||
|
||||
[agate]: https://github.com/mbrubeck/agate/
|
||||
|
||||
|
||||
|
||||
Usage
|
||||
-----
|
||||
|
||||
Use `opal -h` to get a list of options. There is no config file, every setting
|
||||
can be configured from the command line.
|
||||
|
||||
- `-a, --address <address>`: specify the address to listen to.
|
||||
- `-c, --cert <cert>`: server certificate path.
|
||||
- `-k, --key <key>`: server private key path.
|
||||
- `-r, --root-path <root_path>`: path to CGI scripts root.
|
||||
- `-e, --env <key=value>`: additional environment variables for CGI scripts;
|
||||
this option can be used multiple times.
|
||||
|
||||
|
||||
|
||||
CGI support
|
||||
-----------
|
||||
|
||||
Opal tries to implement [RFC 3875][rfc3875] (CGI 1.1) and provides all the
|
||||
required environment variables to processes. It also add a bunch of Gemini
|
||||
specific variables, like a lot of other servers (Gemserv, Gmid, Gmnisrv, …). The
|
||||
environment for the subprocess is cleaned and should only contain those
|
||||
variables.
|
||||
|
||||
[rfc3875]: https://datatracker.ietf.org/doc/html/rfc3875
|
||||
|
||||
| Presence | Variable | Description |
|
||||
|-------------|------------------------|------------------------------------------------------|
|
||||
| always | GATEWAY_INTERFACE | "CGI/1.1" |
|
||||
| always | REMOTE_ADDR | Peer IP address and port |
|
||||
| always | REMOTE_HOST | Same as REMOTE_ADDR |
|
||||
| always | REQUEST_METHOD | Empty string for compatibility |
|
||||
| always | SCRIPT_NAME | Script name part of the URL path |
|
||||
| always | SERVER_NAME | Hostname used for SNI |
|
||||
| always | SERVER_PORT | Port where the request has been received |
|
||||
| always | SERVER_PROTOCOL | "GEMINI" |
|
||||
| always | SERVER_SOFTWARE | "opal/version", e.g. "opal/0.1.0" |
|
||||
| always | GEMINI_DOCUMENT_ROOT | CGI root |
|
||||
| always | GEMINI_SCRIPT_FILENAME | CGI script that matched the URL path |
|
||||
| always | GEMINI_URL | Full URL, normalized |
|
||||
| always | GEMINI_URL_PATH | URL path, normalized |
|
||||
| always | TLS_VERSION | TLS version, e.g. "TLSv1.3" |
|
||||
| always | TLS_CIPHER | TLS cipher suite, e.g. "TLS_AES_256_GCM_SHA384" |
|
||||
| optional | PATH_INFO | Path passed to the CGI process after the script name |
|
||||
| optional | QUERY_STRING | Query string if provided, still URL-encoded |
|
||||
| client cert | AUTH_TYPE | "CERTIFICATE" if one is provided |
|
||||
| client cert | REMOTE_USER | Subject common name (empty if unavailable) |
|
||||
| client cert | TLS_CLIENT_ISSUER | Issuer common name (empty if unavailable) |
|
||||
| client cert | TLS_CLIENT_HASH | Digest of the DER reprensetation of the cert |
|
||||
| client cert | TLS_CLIENT_NOT_AFTER | Validity end date, RFC 3339 format |
|
||||
| client cert | TLS_CLIENT_NOT_BEFORE | Validity start date, RFC 3339 format |
|
||||
|
||||
Opal does not provide `CONTENT_LENGTH`, `CONTENT_TYPE`, `REMOTE_IDENT` because
|
||||
they do not make much sense in Gemini. `PATH_TRANSLATED` is also not implemented
|
||||
by pure laziness.
|
||||
|
||||
The `TLS_CLIENT_HASH` is a string that starts with "SHA256:" followed by the
|
||||
SHA256 digest of the DER representation of the client certificate, as an
|
||||
uppercase hex-string.
|
||||
|
||||
It can be a bit confusing which variable represent what data, especially those
|
||||
related to the URL and the path. Take the following request as example:
|
||||
`gemini://localhost/env/sub1/sub2?search=élément`. Suppose our CGI root, in
|
||||
`/cgi`, contains the executable script named `env`. The variables will be:
|
||||
|
||||
```
|
||||
GEMINI_DOCUMENT_ROOT=/cgi
|
||||
GEMINI_SCRIPT_FILENAME=/cgi/env
|
||||
GEMINI_URL=gemini://localhost/env/sub1/sub2?search=%C3%A9l%C3%A9ment
|
||||
GEMINI_URL_PATH=/env/sub1/sub2
|
||||
SCRIPT_NAME=/env
|
||||
PATH_INFO=/sub1/sub2
|
||||
QUERY_STRING=search=%C3%A9l%C3%A9ment
|
||||
```
|
||||
|
||||
|
||||
|
||||
Roadmap
|
||||
-------
|
||||
|
||||
Things to consider:
|
||||
|
||||
- Multiple listening addresses, at least so we can easily listen on both IPv4
|
||||
and IPv6.
|
||||
- Support SCGI; a bit more complex but should save resources on smol hardware.
|
||||
|
||||
Things that probably won't be considered:
|
||||
|
||||
- Serve static files; so many other servers to that correctly already!
|
||||
- Any kind of security mechanism that is not properly motivated.
|
||||
- FastCGI; come on…
|
|
@ -1,3 +0,0 @@
|
|||
#!/bin/sh
|
||||
printf "20 text/plain\r\n"
|
||||
env
|
1123
src/main.rs
1123
src/main.rs
File diff suppressed because it is too large
Load diff
Reference in a new issue