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Commit | Line | Data |
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16b48b81 | 1 | use std::collections::HashMap; |
2ab5acac DC |
2 | use std::path::PathBuf; |
3 | use std::time::SystemTime; | |
4 | use std::fs::metadata; | |
5 | use std::sync::RwLock; | |
16b48b81 | 6 | |
2ab5acac | 7 | use anyhow::{bail, Error, format_err}; |
16b48b81 | 8 | use hyper::Method; |
f9e3b110 | 9 | use handlebars::Handlebars; |
2ab5acac | 10 | use serde::Serialize; |
16b48b81 | 11 | |
a2479cfa WB |
12 | use proxmox::api::{ApiMethod, Router, RpcEnvironmentType}; |
13 | ||
16b48b81 DM |
14 | pub struct ApiConfig { |
15 | basedir: PathBuf, | |
e63e99d6 | 16 | router: &'static Router, |
16b48b81 | 17 | aliases: HashMap<String, PathBuf>, |
02c7a755 | 18 | env_type: RpcEnvironmentType, |
2ab5acac DC |
19 | templates: RwLock<Handlebars<'static>>, |
20 | template_files: RwLock<HashMap<String, (SystemTime, PathBuf)>>, | |
16b48b81 DM |
21 | } |
22 | ||
23 | impl ApiConfig { | |
24 | ||
f9e3b110 | 25 | pub fn new<B: Into<PathBuf>>(basedir: B, router: &'static Router, env_type: RpcEnvironmentType) -> Result<Self, Error> { |
f9e3b110 | 26 | Ok(Self { |
2ab5acac | 27 | basedir: basedir.into(), |
653b1ca1 | 28 | router, |
16b48b81 | 29 | aliases: HashMap::new(), |
02c7a755 | 30 | env_type, |
2ab5acac DC |
31 | templates: RwLock::new(Handlebars::new()), |
32 | template_files: RwLock::new(HashMap::new()), | |
f9e3b110 | 33 | }) |
16b48b81 DM |
34 | } |
35 | ||
255f378a DM |
36 | pub fn find_method( |
37 | &self, | |
38 | components: &[&str], | |
39 | method: Method, | |
40 | uri_param: &mut HashMap<String, String>, | |
41 | ) -> Option<&'static ApiMethod> { | |
16b48b81 | 42 | |
01bf3b7b | 43 | self.router.find_method(components, method, uri_param) |
16b48b81 DM |
44 | } |
45 | ||
46 | pub fn find_alias(&self, components: &[&str]) -> PathBuf { | |
47 | ||
48 | let mut prefix = String::new(); | |
49 | let mut filename = self.basedir.clone(); | |
50 | let comp_len = components.len(); | |
51 | if comp_len >= 1 { | |
52 | prefix.push_str(components[0]); | |
53 | if let Some(subdir) = self.aliases.get(&prefix) { | |
54 | filename.push(subdir); | |
55 | for i in 1..comp_len { filename.push(components[i]) } | |
8adbdb0a DM |
56 | } else { |
57 | for i in 0..comp_len { filename.push(components[i]) } | |
16b48b81 DM |
58 | } |
59 | } | |
60 | filename | |
61 | } | |
62 | ||
63 | pub fn add_alias<S, P>(&mut self, alias: S, path: P) | |
64 | where S: Into<String>, | |
65 | P: Into<PathBuf>, | |
66 | { | |
67 | self.aliases.insert(alias.into(), path.into()); | |
68 | } | |
02c7a755 DM |
69 | |
70 | pub fn env_type(&self) -> RpcEnvironmentType { | |
71 | self.env_type | |
72 | } | |
2ab5acac DC |
73 | |
74 | pub fn register_template<P>(&self, name: &str, path: P) -> Result<(), Error> | |
75 | where | |
76 | P: Into<PathBuf> | |
77 | { | |
78 | if self.template_files.read().unwrap().contains_key(name) { | |
79 | bail!("template already registered"); | |
80 | } | |
81 | ||
82 | let path: PathBuf = path.into(); | |
83 | let metadata = metadata(&path)?; | |
84 | let mtime = metadata.modified()?; | |
85 | ||
86 | self.templates.write().unwrap().register_template_file(name, &path)?; | |
87 | self.template_files.write().unwrap().insert(name.to_string(), (mtime, path)); | |
88 | ||
89 | Ok(()) | |
90 | } | |
91 | ||
92 | /// Checks if the template was modified since the last rendering | |
93 | /// if yes, it loads a the new version of the template | |
94 | pub fn render_template<T>(&self, name: &str, data: &T) -> Result<String, Error> | |
95 | where | |
96 | T: Serialize, | |
97 | { | |
98 | let path; | |
99 | let mtime; | |
100 | { | |
101 | let template_files = self.template_files.read().unwrap(); | |
102 | let (old_mtime, old_path) = template_files.get(name).ok_or_else(|| format_err!("template not found"))?; | |
103 | ||
104 | mtime = metadata(old_path)?.modified()?; | |
105 | if mtime <= *old_mtime { | |
106 | return self.templates.read().unwrap().render(name, data).map_err(|err| format_err!("{}", err)); | |
107 | } | |
108 | path = old_path.to_path_buf(); | |
109 | } | |
110 | ||
111 | { | |
112 | let mut template_files = self.template_files.write().unwrap(); | |
113 | let mut templates = self.templates.write().unwrap(); | |
114 | ||
115 | templates.register_template_file(name, &path)?; | |
116 | template_files.insert(name.to_string(), (mtime, path)); | |
117 | ||
118 | templates.render(name, data).map_err(|err| format_err!("{}", err)) | |
119 | } | |
120 | } | |
16b48b81 | 121 | } |