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extern crate libc;
use self::libc::{uint8_t, uint64_t, c_char, size_t};
use std::ffi::CStr;
use std::ptr;
use std::slice;
use std::str;
use keys::TPK;
use openpgp;
use openpgp::types::KeyId;
use super::{Config, Context};
/* sequoia::Context. */
/// Creates a Context with reasonable defaults.
///
/// `domain` should uniquely identify your application, it is strongly
/// suggested to use a reversed fully qualified domain name that is
/// associated with your application. `domain` must not be `NULL`.
///
/// Returns `NULL` on errors.
#[no_mangle]
pub extern "system" fn sq_context_new(domain: *const c_char)
-> *mut Context {
assert!(! domain.is_null());
let domain = unsafe {
CStr::from_ptr(domain).to_string_lossy()
};
if let Ok(context) = Context::new(&domain) {
Box::into_raw(Box::new(context))
} else {
ptr::null_mut()
}
}
/// Frees a context.
#[no_mangle]
pub extern "system" fn sq_context_free(context: *mut Context) {
unsafe {
drop(Box::from_raw(context));
}
}
/// Creates a Context that can be configured.
///
/// `domain` should uniquely identify your application, it is strongly
/// suggested to use a reversed fully qualified domain name that is
/// associated with your application. `domain` must not be `NULL`.
///
/// The configuration is seeded like in `sq_context_new`, but can be
/// modified. A configuration has to be finalized using
/// `sq_config_build()` in order to turn it into a Context.
#[no_mangle]
pub extern "system" fn sq_context_configure(domain: *const c_char)
-> *mut Config {
assert!(! domain.is_null());
let domain = unsafe {
CStr::from_ptr(domain).to_string_lossy()
};
Box::into_raw(Box::new(Context::configure(&domain)))
}
/// Returns the domain of the context.
#[no_mangle]
pub extern "system" fn sq_context_domain(ctx: Option<&Context>) -> *const c_char {
assert!(ctx.is_some());
ctx.unwrap().domain().as_bytes().as_ptr() as *const c_char
}
/// Returns the directory containing shared state.
#[no_mangle]
pub extern "system" fn sq_context_home(ctx: Option<&Context>) -> *const c_char {
assert!(ctx.is_some());
ctx.unwrap().home().to_string_lossy().as_ptr() as *const c_char
}
/// Returns the directory containing backend servers.
#[no_mangle]
pub extern "system" fn sq_context_lib(ctx: Option<&Context>) -> *const c_char {
assert!(ctx.is_some());
ctx.unwrap().lib().to_string_lossy().as_bytes().as_ptr() as *const c_char
}
/* sequoia::Config. */
/// Finalizes the configuration and return a `Context`.
///
/// Consumes `cfg`. Returns `NULL` on errors.
#[no_mangle]
pub extern "system" fn sq_config_build(cfg: Option<&mut Config>)
-> *mut Context {
assert!(cfg.is_some());
let cfg = unsafe { Box::from_raw(cfg.unwrap()) };
if let Ok(context) = cfg.build() {
Box::into_raw(Box::new(context))
} else {
ptr::null_mut()
}
}
/// Sets the directory containing shared state.
#[no_mangle]
pub extern "system" fn sq_config_home(cfg: Option<&mut Config>,
home: *const c_char) {
assert!(cfg.is_some());
assert!(! home.is_null());
let home = unsafe {
CStr::from_ptr(home).to_string_lossy()
};
cfg.unwrap().set_home(home.as_ref())
}
/// Set the directory containing backend servers.
#[no_mangle]
pub extern "system" fn sq_config_lib(cfg: Option<&mut Config>,
lib: *const c_char) {
assert!(cfg.is_some());
assert!(! lib.is_null());
let lib = unsafe {
CStr::from_ptr(lib).to_string_lossy()
};
cfg.unwrap().set_lib(&lib.as_ref())
}
/* openpgp::types. */
/// Returns a KeyID with the given `id`.
#[no_mangle]
pub extern "system" fn sq_keyid_new(id: uint64_t) -> *mut KeyId {
Box::into_raw(Box::new(KeyId::new(id)))
}
/// Returns a KeyID with the given `id` encoded as hexadecimal string.
#[no_mangle]
pub extern "system" fn sq_keyid_from_hex(id: *const c_char) -> *mut KeyId {
if id.is_null() { return ptr::null_mut() }
let id = unsafe { CStr::from_ptr(id).to_string_lossy() };
KeyId::from_hex(&id)
.map(|id| Box::into_raw(Box::new(id)))
.unwrap_or(ptr::null_mut())
}
/// Frees an `KeyId` object.
#[no_mangle]
pub extern "system" fn sq_keyid_free(keyid: *mut KeyId) {
if keyid.is_null() { return }
unsafe {
drop(Box::from_raw(keyid));
}
}
/* keys. */
#[no_mangle]
pub extern "system" fn sq_tpk_from_bytes(b: *const uint8_t, len: size_t) -> *mut TPK {
assert!(!b.is_null());
let bytes = unsafe {
slice::from_raw_parts(b, len as usize)
};
let m = openpgp::Message::from_bytes(bytes);
if let Some(tpk) = m.ok().and_then(|m| TPK::from_message(m)) {
Box::into_raw(Box::new(tpk))
} else {
ptr::null_mut()
}
}
#[no_mangle]
pub extern "system" fn sq_tpk_dump(tpk: *mut TPK) {
assert!(!tpk.is_null());
unsafe {
println!("{:?}", *tpk);
}
}
#[no_mangle]
pub extern "system" fn sq_tpk_free(tpk: *mut TPK) {
if tpk.is_null() {
return
}
unsafe {
drop(Box::from_raw(tpk));
}
}
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