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https://github.com/fluencelabs/marine.git
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initial commit
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parent
a670ec76cd
commit
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8
Cargo.lock
generated
8
Cargo.lock
generated
@ -922,6 +922,14 @@ dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "mariadb"
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version = "0.1.0"
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dependencies = [
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"fluence",
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"log",
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]
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[[package]]
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name = "maybe-uninit"
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version = "2.0.0"
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@ -7,6 +7,7 @@ members = [
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"examples/greeting",
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"examples/ipfs-node/effector",
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"examples/ipfs-node/pure",
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"examples/mariadb",
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"examples/records/effector",
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"examples/records/pure",
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"examples/records/test-record",
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13
examples/mariadb/Cargo.toml
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13
examples/mariadb/Cargo.toml
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@ -0,0 +1,13 @@
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[package]
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name = "mariadb"
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version = "0.1.0"
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authors = ["Fluence Labs"]
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edition = "2018"
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[[bin]]
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name = "mariadb"
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path = "src/main.rs"
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[dependencies]
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fluence = { git = "https://github.com/fluencelabs/rust-sdk", features = ["logger"] }
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log = "0.4.11"
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12
examples/mariadb/Config.toml
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12
examples/mariadb/Config.toml
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@ -0,0 +1,12 @@
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modules_dir = "artifacts/"
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[[module]]
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name = "greeting.wasm"
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mem_pages_count = 1
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logger_enabled = false
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[module.imports]
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mariadb = "/usr/local/bin/mariadb"
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[module.wasi]
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envs = ["USER=root", "PASSWORD=toor", "HOST=192.168.88.25", "PORT=3306", "DB_NAME=test"]
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97
examples/mariadb/src/main.rs
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97
examples/mariadb/src/main.rs
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@ -0,0 +1,97 @@
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/*
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* Copyright 2020 Fluence Labs Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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mod path;
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use fluence::fce;
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use fluence::WasmLogger;
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use crate::path::to_full_path;
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use std::path::PathBuf;
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const PASSWORD_ENV_NAME: &str = "PASSWORD";
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const DB_NAME_ENV_NAME: &str = "DB_NAME";
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const PORT_ENV_NAME: &str = "PORT";
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const USER_ENV_NAME: &str = "USER";
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const HOST_ENV_NAME: &str = "HOST_ENV_NAME";
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const TMP_FILE_NAME: &str = "mariadb.sql";
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pub fn main() {
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WasmLogger::init_with_level(log::Level::Info).unwrap();
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}
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#[fce]
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pub struct ExecutionResult {
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// Contain execution result if error_code is 0, and empty string or error message otherwise
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pub result: String,
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// 0 is success, otherwise error code
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pub error_code: i32,
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}
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impl ExecutionResult {
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pub fn success(result: String) -> Self {
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Self {
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result,
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error_code: 0,
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}
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}
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pub fn error(error_code: i32) -> Self {
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Self {
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result: String::new(),
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error_code,
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}
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}
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}
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#[fce]
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pub fn sql(sql: String) -> ExecutionResult {
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log::info!("sql called with command {}", sql);
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let sql_cmd_filepath = TMP_FILE_NAME.to_string();
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if let Err(e) = std::fs::write(PathBuf::from(sql_cmd_filepath), sql) {
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return ExecutionResult {
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result: String::new(),
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// it is safe because write return only OS errors
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error_code: e.raw_os_error().unwrap(),
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};
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}
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let sql_cmd_filepath = to_full_path(TMP_FILE_NAME);
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let password = std::env::var(PASSWORD_ENV_NAME).unwrap_or_else(|_| "toor".to_string());
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let db_name = std::env::var(DB_NAME_ENV_NAME).unwrap_or_else(|_| "test".to_string());
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let port = std::env::var(PORT_ENV_NAME).unwrap_or_else(|_| "3306".to_string());
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let user = std::env::var(USER_ENV_NAME).unwrap_or_else(|_| "root".to_string());
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let host = std::env::var(HOST_ENV_NAME).unwrap_or_else(|_| "127.0.0.1".to_string());
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let cmd = format!(
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"-u{} -p{} -h{} -P{} -D{} < {}",
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user, password, host, port, db_name, sql_cmd_filepath
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);
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let result = mariadb(cmd);
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ExecutionResult::success(result)
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}
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#[fce]
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#[link(wasm_import_module = "host")]
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extern "C" {
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/// Execute provided sql as a parameters of mariadb cli, return result.
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pub fn mariadb(sql: String) -> String;
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}
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52
examples/mariadb/src/path.rs
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52
examples/mariadb/src/path.rs
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@ -0,0 +1,52 @@
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/*
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* Copyright 2020 Fluence Labs Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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pub(super) fn to_full_path<S>(cmd: S) -> String
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where
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S: Into<String>,
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{
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use std::path::Path;
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use std::path::Component;
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let cmd = cmd.into();
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let path = Path::new(&cmd);
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let mut components = path.components();
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let is_absolute = components.next() == Some(Component::RootDir);
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if !is_absolute {
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return cmd;
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}
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let parent = match components.next() {
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Some(Component::Normal(path)) => path.to_str().unwrap(),
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_ => return cmd,
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};
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match std::env::var(parent) {
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Ok(to_dir) => {
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let mut full_path = std::path::PathBuf::from(to_dir);
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// TODO: optimize this
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#[allow(clippy::while_let_on_iterator)]
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while let Some(component) = components.next() {
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full_path.push(component);
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}
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full_path.to_string_lossy().into_owned()
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}
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Err(_) => cmd,
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}
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}
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