[pbs-devel] [RFC proxmox-backup 4/4] apt: add /changelog API call similar to PVE
Stefan Reiter
s.reiter at proxmox.com
Tue Jul 28 10:58:46 CEST 2020
For proxmox packages it works the same way as PVE, by retrieving the
changelog URL and issuing a HTTP GET to it, forwarding the output to the
client. As this is only supposed to be a workaround removed in the
future, a simple block_on is used to avoid async.
For debian packages we can simply call 'apt-get changelog' and forward
it's output.
Signed-off-by: Stefan Reiter <s.reiter at proxmox.com>
---
src/api2/node/apt.rs | 67 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 66 insertions(+), 1 deletion(-)
diff --git a/src/api2/node/apt.rs b/src/api2/node/apt.rs
index e47698d1..c7f93466 100644
--- a/src/api2/node/apt.rs
+++ b/src/api2/node/apt.rs
@@ -1,5 +1,5 @@
use apt_pkg_native::Cache;
-use anyhow::{Error, bail};
+use anyhow::{Error, bail, format_err};
use serde_json::{json, Value};
use proxmox::{list_subdirs_api_method, const_regex};
@@ -7,6 +7,7 @@ use proxmox::api::{api, RpcEnvironment, RpcEnvironmentType, Permission};
use proxmox::api::router::{Router, SubdirMap};
use crate::server::WorkerTask;
+use crate::tools::http;
use crate::config::acl::{PRIV_SYS_AUDIT, PRIV_SYS_MODIFY};
use crate::api2::types::{APTUpdateInfo, NODE_SCHEMA, UPID_SCHEMA};
@@ -252,7 +253,71 @@ pub fn apt_update_database(
Ok(upid_str)
}
+#[api(
+ input: {
+ properties: {
+ node: {
+ schema: NODE_SCHEMA,
+ },
+ name: {
+ description: "Package name to get changelog of.",
+ type: String,
+ },
+ version: {
+ description: "Package version to get changelog of. Omit to use candidate version.",
+ type: String,
+ optional: true,
+ },
+ },
+ },
+ returns: {
+ schema: UPID_SCHEMA,
+ },
+ access: {
+ permission: &Permission::Privilege(&[], PRIV_SYS_MODIFY, false),
+ },
+)]
+/// Retrieve the changelog of the specified package.
+fn apt_get_changelog(
+ param: Value,
+) -> Result<Value, Error> {
+
+ let name = crate::tools::required_string_param(¶m, "name")?.to_owned();
+ let version = param["version"].as_str();
+
+ let pkg_info = list_installed_apt_packages(|pkg, _, can_ver, ver| {
+ if pkg == name {
+ match version {
+ Some(v) => v == ver,
+ None => ver == can_ver
+ }
+ } else {
+ false
+ }
+ });
+
+ if pkg_info.len() == 0 {
+ bail!("Package '{}' not found", name);
+ }
+
+ let changelog_url = &pkg_info[0].change_log_url;
+ // FIXME: use 'apt-get changelog' for proxmox packages as well, once repo supports it
+ if changelog_url.starts_with("http://download.proxmox.com/") {
+ let changelog = crate::tools::runtime::block_on(http::get_string(changelog_url))
+ .map_err(|err| format_err!("Error downloading changelog: {}", err))?;
+ return Ok(json!(changelog));
+ } else {
+ let mut command = std::process::Command::new("apt-get");
+ command.arg("changelog");
+ command.arg("-qq"); // don't display download progress
+ command.arg(name);
+ let output = crate::tools::run_command(command, None)?;
+ return Ok(json!(output));
+ }
+}
+
const SUBDIRS: SubdirMap = &[
+ ("changelog", &Router::new().get(&API_METHOD_APT_GET_CHANGELOG)),
("update", &Router::new()
.get(&API_METHOD_APT_UPDATE_AVAILABLE)
.post(&API_METHOD_APT_UPDATE_DATABASE)
--
2.20.1
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