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add GoogleCloudStorageConfig::new and config and move functions to cl…
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…ient
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@l1nxy
l1nxy committed Jan 15, 2024
1 parent 18c66b3 commit e10ba08
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Showing 4 changed files with 193 additions and 143 deletions.
10 changes: 5 additions & 5 deletions object_store/src/gcp/builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -483,13 +483,13 @@ impl GoogleCloudStorageBuilder {
)) as _
};

let config = GoogleCloudStorageConfig {
base_url: gcs_base_url,
let config = GoogleCloudStorageConfig::new(
gcs_base_url,
credentials,
bucket_name,
retry_config: self.retry_config,
client_options: self.client_options,
};
self.retry_config,
self.client_options,
);

Ok(GoogleCloudStorage {
client: Arc::new(GoogleCloudStorageClient::new(config)?),
Expand Down
138 changes: 137 additions & 1 deletion object_store/src/gcp/client.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,9 @@ use crate::client::s3::{
ListResponse,
};
use crate::client::GetOptionsExt;
use crate::gcp::{GcpCredential, GcpCredentialProvider, STORE};
use crate::gcp::{
GcpCredential, GcpCredentialProvider, DEFAULT_GCS_PLAYLOAD_STRING, STORE, STRICT_ENCODE_SET,
};
use crate::multipart::PartId;
use crate::path::{Path, DELIMITER};
use crate::{
Expand All @@ -33,12 +35,18 @@ use crate::{
};
use async_trait::async_trait;
use bytes::{Buf, Bytes};
use chrono::{DateTime, Utc};
use hyper::HeaderMap;
use itertools::Itertools;
use percent_encoding::{percent_encode, utf8_percent_encode, NON_ALPHANUMERIC};
use reqwest::header::HeaderName;
use reqwest::{header, Client, Method, RequestBuilder, Response, StatusCode};
use serde::Serialize;
use snafu::{OptionExt, ResultExt, Snafu};
use std::collections::BTreeMap;
use std::sync::Arc;
use std::time::Duration;
use url::Url;

const VERSION_HEADER: &str = "x-goog-generation";

Expand Down Expand Up @@ -130,6 +138,134 @@ pub struct GoogleCloudStorageConfig {
pub client_options: ClientOptions,
}

impl GoogleCloudStorageConfig {
pub fn new(
base_url: String,
credentials: GcpCredentialProvider,
bucket_name: String,
retry_config: RetryConfig,
client_options: ClientOptions,
) -> Self {
Self {
base_url,
credentials,
bucket_name,
retry_config,
client_options,
}
}

pub fn path_url(&self, path: &Path) -> String {
format!("{}/{}", self.base_url, path)
}
}

pub(crate) struct GCSSigner {
expire_in: Duration,
}

/// Trim whitespace from header values
fn trim_header_value(value: &str) -> String {
let mut ret = value.to_string();
ret.retain(|c| !c.is_whitespace());
ret
}

impl GCSSigner {
/// Canonicalizes query parameters into the GCP canonical form
/// form like:
/// ```
///HTTP_VERB
///PATH_TO_RESOURCE
///CANONICAL_QUERY_STRING
///CANONICAL_HEADERS
///
///SIGNED_HEADERS
///PAYLOAD
///```
///
/// <https://cloud.google.com/storage/docs/authentication/canonical-requests>
fn canonicalize_request(&self, url: &Url, methond: &Method, headers: &HeaderMap) -> String {
let verb = methond.as_str();
let path = url.path();
let query = self.canonicalize_query(url);
let (canaonical_headers, signed_headers) = self.canonicalize_headers(headers);

format!(
"{}\n{}\n{}\n{}\n\n{}\n{}",
verb, path, query, canaonical_headers, signed_headers, DEFAULT_GCS_PLAYLOAD_STRING
)
}

fn canonicalize_query(&self, url: &Url) -> String {
url.query_pairs()
.sorted_unstable_by(|a, b| a.0.cmp(&b.0))
.map(|(k, v)| {
format!(
"{}={}",
utf8_percent_encode(k.as_ref(), &STRICT_ENCODE_SET),
utf8_percent_encode(v.as_ref(), &STRICT_ENCODE_SET)
)
})
.join("&")
}

/// Canonicalizes query parameters into the GCP canonical form
///
/// <https://cloud.google.com/storage/docs/authentication/canonical-requests#about-headers>
fn canonicalize_headers(&self, header_map: &HeaderMap) -> (String, String) {
//FIXME add error handling for invalid header values
let mut headers = BTreeMap::<String, Vec<&str>>::new();
for (k, v) in header_map {
headers
.entry(k.as_str().to_lowercase())
.or_default()
.push(std::str::from_utf8(v.as_bytes()).unwrap());
}

let canonicalize_headers = headers
.iter()
.map(|(k, v)| {
format!(
"{}:{}",
k.trim(),
v.iter().map(|v| trim_header_value(v)).join(",")
)
})
.join("\n");

let signed_headers = headers.keys().join(";");

(canonicalize_headers, signed_headers)
}

///construct the string to sign
///form like:
///```
///SIGNING_ALGORITHM
///ACTIVE_DATETIME
///CREDENTIAL_SCOPE
///HASHED_CANONICAL_REQUEST
///````
///`ACTIVE_DATETIME` format:`YYYYMMDD'T'HHMMSS'Z'`
/// <https://cloud.google.com/storage/docs/authentication/signatures#string-to-sign>
fn string_to_sign(
&self,
signing_algorithm: &str,
date: DateTime<Utc>,
scope: &str,
hashed_canonical_req: &str,
) -> String {
format!(
"{}\n{}\n{}\n{}",
signing_algorithm,
date.format("%Y%m%dT%H%M%SZ"),
scope,
hashed_canonical_req
)
}
}

/// A builder for a put request allowing customisation of the headers and query string
pub struct PutRequest<'a> {
path: &'a Path,
Expand Down
173 changes: 36 additions & 137 deletions object_store/src/gcp/credential.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -47,8 +47,6 @@ pub const DEFAULT_SCOPE: &str = "https://www.googleapis.com/auth/devstorage.full

pub const DEFAULT_GCS_BASE_URL: &str = "https://storage.googleapis.com";

pub const DEFAULT_GCS_PLAYLOAD_STRING: &str = "UNSIGNED-PAYLOAD";

#[derive(Debug, Snafu)]
pub enum Error {
#[snafu(display("Unable to open service account file from {}: {}", path.display(), source))]
Expand Down Expand Up @@ -543,138 +541,39 @@ impl TokenProvider for AuthorizedUserCredentials {
})
}
}

/// Canonicalizes query parameters into the GCP canonical form
/// form like:
/// ```
///HTTP_VERB
///PATH_TO_RESOURCE
///CANONICAL_QUERY_STRING
///CANONICAL_HEADERS
///
///SIGNED_HEADERS
///PAYLOAD
///```
///
/// <https://cloud.google.com/storage/docs/authentication/canonical-requests>
fn canonicalize_request(url: &Url, methond: &Method, headers: &HeaderMap) -> String {
let verb = methond.as_str();
let path = url.path();
let query = canonicalize_query(url);
let (canaonical_headers, signed_headers) = canonicalize_headers(headers);

format!(
"{}\n{}\n{}\n{}\n\n{}\n{}",
verb, path, query, canaonical_headers, signed_headers, DEFAULT_GCS_PLAYLOAD_STRING
)
}

fn canonicalize_query(url: &Url) -> String {
url.query_pairs()
.sorted_unstable_by(|a, b| a.0.cmp(&b.0))
.map(|(k, v)| {
format!(
"{}={}",
utf8_percent_encode(k.as_ref(), &STRICT_ENCODE_SET),
utf8_percent_encode(v.as_ref(), &STRICT_ENCODE_SET)
)
})
.join("&")
}

/// Trim whitespace from header values
fn trim_header_value(value: &str) -> String {
let mut ret = value.to_string();
ret.retain(|c| !c.is_whitespace());
ret
}

/// Canonicalizes query parameters into the GCP canonical form
///
/// <https://cloud.google.com/storage/docs/authentication/canonical-requests#about-headers>
fn canonicalize_headers(header_map: &HeaderMap) -> (String, String) {
//FIXME add error handling for invalid header values
let mut headers = BTreeMap::<String, Vec<&str>>::new();
for (k, v) in header_map {
headers
.entry(k.as_str().to_lowercase())
.or_default()
.push(std::str::from_utf8(v.as_bytes()).unwrap());
}

let canonicalize_headers = headers
.iter()
.map(|(k, v)| {
format!(
"{}:{}",
k.trim(),
v.iter().map(|v| trim_header_value(v)).join(",")
)
})
.join("\n");

let signed_headers = headers.keys().join(";");

(canonicalize_headers, signed_headers)
}

///construct the string to sign
///form like:
///```
///SIGNING_ALGORITHM
///ACTIVE_DATETIME
///CREDENTIAL_SCOPE
///HASHED_CANONICAL_REQUEST
///````
///`ACTIVE_DATETIME` format:`YYYYMMDD'T'HHMMSS'Z'`
/// <https://cloud.google.com/storage/docs/authentication/signatures#string-to-sign>
fn string_to_sign(
signing_algorithm: &str,
date: DateTime<Utc>,
scope: &str,
hashed_canonical_req: &str,
) -> String {
format!(
"{}\n{}\n{}\n{}",
signing_algorithm,
date.format("%Y%m%dT%H%M%SZ"),
scope,
hashed_canonical_req
)
}

#[cfg(test)]
mod tests {
use super::*;

#[test]
fn test_canonicalize_headers() {
let mut input_header = HeaderMap::new();
input_header.insert("content-type", "text/plain".parse().unwrap());
input_header.insert("host", "storage.googleapis.com".parse().unwrap());
input_header.insert("x-goog-meta-reviewer", "jane".parse().unwrap());
input_header.append("x-goog-meta-reviewer", "john".parse().unwrap());
assert_eq!(
canonicalize_headers(&input_header),
(
"content-type:text/plain
host:storage.googleapis.com
x-goog-meta-reviewer:jane,john"
.to_string(),
"content-type;host;x-goog-meta-reviewer".to_string()
)
);
}

#[test]
fn test_canonicalize_query() {
let mut url = Url::parse("https://storage.googleapis.com/bucket/object").unwrap();
url.query_pairs_mut()
.append_pair("max-keys", "2")
.append_pair("prefix", "object");
assert_eq!(
canonicalize_query(&url),
"max-keys=2&prefix=object".to_string()
);
}
}
//
// #[cfg(test)]
// mod tests {
// use super::*;
//
// #[test]
// fn test_canonicalize_headers() {
// let mut input_header = HeaderMap::new();
// input_header.insert("content-type", "text/plain".parse().unwrap());
// input_header.insert("host", "storage.googleapis.com".parse().unwrap());
// input_header.insert("x-goog-meta-reviewer", "jane".parse().unwrap());
// input_header.append("x-goog-meta-reviewer", "john".parse().unwrap());
// assert_eq!(
// canonicalize_headers(&input_header),
// (
// "content-type:text/plain
// host:storage.googleapis.com
// x-goog-meta-reviewer:jane,john"
// .to_string(),
// "content-type;host;x-goog-meta-reviewer".to_string()
// )
// );
// }
//
// #[test]
// fn test_canonicalize_query() {
// let mut url = Url::parse("https://storage.googleapis.com/bucket/object").unwrap();
// url.query_pairs_mut()
// .append_pair("max-keys", "2")
// .append_pair("prefix", "object");
// assert_eq!(
// canonicalize_query(&url),
// "max-keys=2&prefix=object".to_string()
// );
// }
// }
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