| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/pem-0.8.3/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../pem/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../pem/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Copyright 2016-2017 Jonathan Creekmore |
| // |
| // Licensed under the MIT license <LICENSE.md or |
| // http://opensource.org/licenses/MIT>. This file may not be |
| // copied, modified, or distributed except according to those terms. |
| |
| </span><span class="doccomment">//! This crate provides a parser and encoder for PEM-encoded binary data. |
| //! PEM-encoded binary data is essentially a beginning and matching end |
| //! tag that encloses base64-encoded binary data (see: |
| //! https://en.wikipedia.org/wiki/Privacy-enhanced_Electronic_Mail). |
| //! |
| //! This crate's documentation provides a few simple examples along with |
| //! documentation on the public methods for the crate. |
| //! |
| //! # Usage |
| //! |
| //! This crate is [on crates.io](https://crates.io/crates/pem) and can be used |
| //! by adding `pem` to your dependencies in your project's `Cargo.toml`. |
| //! |
| //! ```toml |
| //! [dependencies] |
| //! pem = "0.8" |
| //! ``` |
| //! |
| //! and this to your crate root: |
| //! |
| //! ```rust |
| //! extern crate pem; |
| //! ``` |
| //! |
| //! # Example: parse a single chunk of PEM-encoded text |
| //! |
| //! Generally, PEM-encoded files contain a single chunk of PEM-encoded |
| //! text. Commonly, this is in some sort of a key file or an x.509 |
| //! certificate. |
| //! |
| //! ```rust |
| //! |
| //! use pem::parse; |
| //! |
| //! const SAMPLE: &'static str = "-----BEGIN RSA PRIVATE KEY----- |
| //! MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| //! dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| //! 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| //! AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| //! DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| //! TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| //! ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| //! -----END RSA PRIVATE KEY----- |
| //! "; |
| //! |
| //! let pem = parse(SAMPLE).unwrap(); |
| //! assert_eq!(pem.tag, "RSA PRIVATE KEY"); |
| //! ``` |
| //! |
| //! # Example: parse a set of PEM-encoded test |
| //! |
| //! Sometimes, PEM-encoded files contain multiple chunks of PEM-encoded |
| //! text. You might see this if you have an x.509 certificate file that |
| //! also includes intermediate certificates. |
| //! |
| //! ```rust |
| //! |
| //! use pem::parse_many; |
| //! |
| //! const SAMPLE: &'static str = "-----BEGIN INTERMEDIATE CERT----- |
| //! MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| //! dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| //! 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| //! AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| //! DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| //! TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| //! ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| //! -----END INTERMEDIATE CERT----- |
| //! |
| //! -----BEGIN CERTIFICATE----- |
| //! MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| //! dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| //! 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| //! AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| //! DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| //! TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| //! ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| //! -----END CERTIFICATE----- |
| //! "; |
| //! |
| //! let pems = parse_many(SAMPLE); |
| //! assert_eq!(pems.len(), 2); |
| //! assert_eq!(pems[0].tag, "INTERMEDIATE CERT"); |
| //! assert_eq!(pems[1].tag, "CERTIFICATE"); |
| //! ``` |
| |
| </span><span class="attribute">#![recursion_limit = <span class="string">"1024"</span>] |
| #![deny( |
| missing_docs, |
| missing_debug_implementations, |
| missing_copy_implementations, |
| trivial_casts, |
| trivial_numeric_casts, |
| unsafe_code, |
| unstable_features, |
| unused_import_braces, |
| unused_qualifications |
| )] |
| |
| </span><span class="kw">mod </span>errors; |
| |
| <span class="kw">pub use </span><span class="kw">crate</span>::errors::{PemError, <span class="prelude-ty">Result</span>}; |
| <span class="kw">use </span>once_cell::sync::Lazy; |
| <span class="kw">use </span>regex::bytes::{Captures, Regex}; |
| <span class="kw">use </span>std::str; |
| |
| <span class="kw">const </span>REGEX_STR: <span class="kw-2">&</span>str = |
| <span class="string">r"(?s)-----BEGIN (?P<begin>.*?)-----[ \t\n\r]*(?P<data>.*?)-----END (?P<end>.*?)-----[ \t\n\r]*"</span>; |
| |
| <span class="doccomment">/// The line length for PEM encoding |
| </span><span class="kw">const </span>LINE_WRAP: usize = <span class="number">64</span>; |
| |
| <span class="kw">static </span>ASCII_ARMOR: Lazy<Regex> = Lazy::new(|| { |
| Regex::new(REGEX_STR).unwrap() |
| }); |
| |
| <span class="doccomment">/// Enum describing line endings |
| </span><span class="attribute">#[derive(Debug, Clone, Copy)] |
| </span><span class="kw">pub enum </span>LineEnding { |
| <span class="doccomment">/// Windows-like (`\r\n`) |
| </span>CRLF, |
| <span class="doccomment">/// Unix-like (`\n`) |
| </span>LF, |
| } |
| |
| <span class="doccomment">/// Configuration for Pem encoding |
| </span><span class="attribute">#[derive(Debug, Clone, Copy)] |
| </span><span class="kw">pub struct </span>EncodeConfig { |
| <span class="doccomment">/// Line ending to use during encoding |
| </span><span class="kw">pub </span>line_ending: LineEnding, |
| } |
| |
| <span class="doccomment">/// A representation of Pem-encoded data |
| </span><span class="attribute">#[derive(PartialEq, Debug, Clone)] |
| </span><span class="kw">pub struct </span>Pem { |
| <span class="doccomment">/// The tag extracted from the Pem-encoded data |
| </span><span class="kw">pub </span>tag: String, |
| <span class="doccomment">/// The binary contents of the Pem-encoded data |
| </span><span class="kw">pub </span>contents: Vec<u8>, |
| } |
| |
| <span class="kw">impl </span>Pem { |
| <span class="kw">fn </span>new_from_captures(caps: Captures) -> <span class="prelude-ty">Result</span><Pem> { |
| <span class="kw">fn </span>as_utf8<<span class="lifetime">'a</span>>(bytes: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8]) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'a </span>str> { |
| <span class="prelude-val">Ok</span>(str::from_utf8(bytes).map_err(PemError::NotUtf8)<span class="question-mark">?</span>) |
| } |
| |
| <span class="comment">// Verify that the begin section exists |
| </span><span class="kw">let </span>tag = as_utf8( |
| caps.name(<span class="string">"begin"</span>) |
| .ok_or_else(|| PemError::MissingBeginTag)<span class="question-mark">? |
| </span>.as_bytes(), |
| )<span class="question-mark">?</span>; |
| <span class="kw">if </span>tag.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(PemError::MissingBeginTag); |
| } |
| |
| <span class="comment">// as well as the end section |
| </span><span class="kw">let </span>tag_end = as_utf8( |
| caps.name(<span class="string">"end"</span>) |
| .ok_or_else(|| PemError::MissingEndTag)<span class="question-mark">? |
| </span>.as_bytes(), |
| )<span class="question-mark">?</span>; |
| <span class="kw">if </span>tag_end.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(PemError::MissingEndTag); |
| } |
| |
| <span class="comment">// The beginning and the end sections must match |
| </span><span class="kw">if </span>tag != tag_end { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(PemError::MismatchedTags(tag.into(), tag_end.into())); |
| } |
| |
| <span class="comment">// If they did, then we can grab the data section |
| </span><span class="kw">let </span>raw_data = as_utf8( |
| caps.name(<span class="string">"data"</span>) |
| .ok_or_else(|| PemError::MissingData)<span class="question-mark">? |
| </span>.as_bytes(), |
| )<span class="question-mark">?</span>; |
| |
| <span class="comment">// We need to get rid of newlines for base64::decode |
| // As base64 requires an AsRef<[u8]>, this must involve a copy |
| </span><span class="kw">let </span>data: String = raw_data.lines().map(str::trim_end).collect(); |
| |
| <span class="comment">// And decode it from Base64 into a vector of u8 |
| </span><span class="kw">let </span>contents = |
| base64::decode_config(<span class="kw-2">&</span>data, base64::STANDARD).map_err(PemError::InvalidData)<span class="question-mark">?</span>; |
| |
| <span class="prelude-val">Ok</span>(Pem { |
| tag: tag.to_owned(), |
| contents, |
| }) |
| } |
| } |
| |
| <span class="doccomment">/// Parses a single PEM-encoded data from a data-type that can be dereferenced as a [u8]. |
| /// |
| /// # Example: parse PEM-encoded data from a Vec<u8> |
| /// ```rust |
| /// |
| /// use pem::parse; |
| /// |
| /// const SAMPLE: &'static str = "-----BEGIN RSA PRIVATE KEY----- |
| /// MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| /// dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| /// 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| /// AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| /// DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| /// TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| /// ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| /// -----END RSA PRIVATE KEY----- |
| /// "; |
| /// let SAMPLE_BYTES: Vec<u8> = SAMPLE.into(); |
| /// |
| /// let pem = parse(SAMPLE_BYTES).unwrap(); |
| /// assert_eq!(pem.tag, "RSA PRIVATE KEY"); |
| /// ``` |
| /// |
| /// # Example: parse PEM-encoded data from a String |
| /// ```rust |
| /// |
| /// use pem::parse; |
| /// |
| /// const SAMPLE: &'static str = "-----BEGIN RSA PRIVATE KEY----- |
| /// MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| /// dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| /// 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| /// AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| /// DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| /// TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| /// ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| /// -----END RSA PRIVATE KEY----- |
| /// "; |
| /// let SAMPLE_STRING: String = SAMPLE.into(); |
| /// |
| /// let pem = parse(SAMPLE_STRING).unwrap(); |
| /// assert_eq!(pem.tag, "RSA PRIVATE KEY"); |
| /// ``` |
| </span><span class="kw">pub fn </span>parse<B: AsRef<[u8]>>(input: B) -> <span class="prelude-ty">Result</span><Pem> { |
| ASCII_ARMOR |
| .captures(<span class="kw-2">&</span>input.as_ref()) |
| .ok_or_else(|| PemError::MalformedFraming) |
| .and_then(Pem::new_from_captures) |
| } |
| |
| <span class="doccomment">/// Parses a set of PEM-encoded data from a data-type that can be dereferenced as a [u8]. |
| /// |
| /// # Example: parse a set of PEM-encoded data from a Vec<u8> |
| /// |
| /// ```rust |
| /// |
| /// use pem::parse_many; |
| /// |
| /// const SAMPLE: &'static str = "-----BEGIN INTERMEDIATE CERT----- |
| /// MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| /// dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| /// 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| /// AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| /// DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| /// TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| /// ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| /// -----END INTERMEDIATE CERT----- |
| /// |
| /// -----BEGIN CERTIFICATE----- |
| /// MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| /// dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| /// 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| /// AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| /// DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| /// TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| /// ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| /// -----END CERTIFICATE----- |
| /// "; |
| /// let SAMPLE_BYTES: Vec<u8> = SAMPLE.into(); |
| /// |
| /// let pems = parse_many(SAMPLE_BYTES); |
| /// assert_eq!(pems.len(), 2); |
| /// assert_eq!(pems[0].tag, "INTERMEDIATE CERT"); |
| /// assert_eq!(pems[1].tag, "CERTIFICATE"); |
| /// ``` |
| /// |
| /// # Example: parse a set of PEM-encoded data from a String |
| /// |
| /// ```rust |
| /// |
| /// use pem::parse_many; |
| /// |
| /// const SAMPLE: &'static str = "-----BEGIN INTERMEDIATE CERT----- |
| /// MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| /// dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| /// 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| /// AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| /// DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| /// TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| /// ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| /// -----END INTERMEDIATE CERT----- |
| /// |
| /// -----BEGIN CERTIFICATE----- |
| /// MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| /// dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| /// 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| /// AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| /// DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| /// TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| /// ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| /// -----END CERTIFICATE----- |
| /// "; |
| /// let SAMPLE_STRING: Vec<u8> = SAMPLE.into(); |
| /// |
| /// let pems = parse_many(SAMPLE_STRING); |
| /// assert_eq!(pems.len(), 2); |
| /// assert_eq!(pems[0].tag, "INTERMEDIATE CERT"); |
| /// assert_eq!(pems[1].tag, "CERTIFICATE"); |
| /// ``` |
| </span><span class="kw">pub fn </span>parse_many<B: AsRef<[u8]>>(input: B) -> Vec<Pem> { |
| <span class="comment">// Each time our regex matches a PEM section, we need to decode it. |
| </span>ASCII_ARMOR |
| .captures_iter(<span class="kw-2">&</span>input.as_ref()) |
| .filter_map(|caps| Pem::new_from_captures(caps).ok()) |
| .collect() |
| } |
| |
| <span class="doccomment">/// Encode a PEM struct into a PEM-encoded data string |
| /// |
| /// # Example |
| /// ```rust |
| /// use pem::{Pem, encode}; |
| /// |
| /// let pem = Pem { |
| /// tag: String::from("FOO"), |
| /// contents: vec![1, 2, 3, 4], |
| /// }; |
| /// encode(&pem); |
| /// ``` |
| </span><span class="kw">pub fn </span>encode(pem: <span class="kw-2">&</span>Pem) -> String { |
| encode_config( |
| pem, |
| EncodeConfig { |
| line_ending: LineEnding::CRLF, |
| }, |
| ) |
| } |
| |
| <span class="doccomment">/// Encode a PEM struct into a PEM-encoded data string with additional |
| /// configuration options |
| /// |
| /// # Example |
| /// ```rust |
| /// use pem::{Pem, encode_config, EncodeConfig, LineEnding}; |
| /// |
| /// let pem = Pem { |
| /// tag: String::from("FOO"), |
| /// contents: vec![1, 2, 3, 4], |
| /// }; |
| /// encode_config(&pem, EncodeConfig { line_ending: LineEnding::LF }); |
| /// ``` |
| </span><span class="kw">pub fn </span>encode_config(pem: <span class="kw-2">&</span>Pem, config: EncodeConfig) -> String { |
| <span class="kw">let </span>line_ending = <span class="kw">match </span>config.line_ending { |
| LineEnding::CRLF => <span class="string">"\r\n"</span>, |
| LineEnding::LF => <span class="string">"\n"</span>, |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>output = String::new(); |
| |
| <span class="kw">let </span>contents = <span class="kw">if </span>pem.contents.is_empty() { |
| String::from(<span class="string">""</span>) |
| } <span class="kw">else </span>{ |
| base64::encode_config( |
| <span class="kw-2">&</span>pem.contents, |
| base64::Config::new(base64::CharacterSet::Standard, <span class="bool-val">true</span>), |
| ) |
| }; |
| |
| output.push_str(<span class="kw-2">&</span><span class="macro">format!</span>(<span class="string">"-----BEGIN {}-----{}"</span>, pem.tag, line_ending)); |
| <span class="kw">for </span>c <span class="kw">in </span>contents.as_bytes().chunks(LINE_WRAP) { |
| output.push_str(<span class="kw-2">&</span><span class="macro">format!</span>(<span class="string">"{}{}"</span>, str::from_utf8(c).unwrap(), line_ending)); |
| } |
| output.push_str(<span class="kw-2">&</span><span class="macro">format!</span>(<span class="string">"-----END {}-----{}"</span>, pem.tag, line_ending)); |
| |
| output |
| } |
| |
| <span class="doccomment">/// Encode multiple PEM structs into a PEM-encoded data string |
| /// |
| /// # Example |
| /// ```rust |
| /// use pem::{Pem, encode_many}; |
| /// |
| /// let data = vec![ |
| /// Pem { |
| /// tag: String::from("FOO"), |
| /// contents: vec![1, 2, 3, 4], |
| /// }, |
| /// Pem { |
| /// tag: String::from("BAR"), |
| /// contents: vec![5, 6, 7, 8], |
| /// }, |
| /// ]; |
| /// encode_many(&data); |
| /// ``` |
| </span><span class="kw">pub fn </span>encode_many(pems: <span class="kw-2">&</span>[Pem]) -> String { |
| pems.iter() |
| .map(encode) |
| .collect::<Vec<String>>() |
| .join(<span class="string">"\r\n"</span>) |
| } |
| |
| <span class="doccomment">/// Encode multiple PEM structs into a PEM-encoded data string with additional |
| /// configuration options |
| /// |
| /// Same config will be used for each PEM struct. |
| /// |
| /// # Example |
| /// ```rust |
| /// use pem::{Pem, encode_many_config, EncodeConfig, LineEnding}; |
| /// |
| /// let data = vec![ |
| /// Pem { |
| /// tag: String::from("FOO"), |
| /// contents: vec![1, 2, 3, 4], |
| /// }, |
| /// Pem { |
| /// tag: String::from("BAR"), |
| /// contents: vec![5, 6, 7, 8], |
| /// }, |
| /// ]; |
| /// encode_many_config(&data, EncodeConfig { line_ending: LineEnding::LF }); |
| /// ``` |
| </span><span class="kw">pub fn </span>encode_many_config(pems: <span class="kw-2">&</span>[Pem], config: EncodeConfig) -> String { |
| <span class="kw">let </span>line_ending = <span class="kw">match </span>config.line_ending { |
| LineEnding::CRLF => <span class="string">"\r\n"</span>, |
| LineEnding::LF => <span class="string">"\n"</span>, |
| }; |
| pems.iter() |
| .map(|value| encode_config(value, config)) |
| .collect::<Vec<String>>() |
| .join(line_ending) |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>test { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| <span class="kw">use </span>std::error::Error; |
| |
| <span class="kw">const </span>SAMPLE_CRLF: <span class="kw-2">&</span><span class="lifetime">'static </span>str = <span class="string">"-----BEGIN RSA PRIVATE KEY-----\r |
| MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc\r |
| dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO\r |
| 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei\r |
| AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un\r |
| DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT\r |
| TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh\r |
| ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ\r |
| -----END RSA PRIVATE KEY-----\r |
| \r |
| -----BEGIN RSA PUBLIC KEY-----\r |
| MIIBOgIBAAJBAMIeCnn9G/7g2Z6J+qHOE2XCLLuPoh5NHTO2Fm+PbzBvafBo0oYo\r |
| QVVy7frzxmOqx6iIZBxTyfAQqBPO3Br59BMCAwEAAQJAX+PjHPuxdqiwF6blTkS0\r |
| RFI1MrnzRbCmOkM6tgVO0cd6r5Z4bDGLusH9yjI9iI84gPRjK0AzymXFmBGuREHI\r |
| sQIhAPKf4pp+Prvutgq2ayygleZChBr1DC4XnnufBNtaswyvAiEAzNGVKgNvzuhk\r |
| ijoUXIDruJQEGFGvZTsi1D2RehXiT90CIQC4HOQUYKCydB7oWi1SHDokFW2yFyo6\r |
| /+lf3fgNjPI6OQIgUPmTFXciXxT1msh3gFLf3qt2Kv8wbr9Ad9SXjULVpGkCIB+g\r |
| RzHX0lkJl9Stshd/7Gbt65/QYq+v+xvAeT0CoyIg\r |
| -----END RSA PUBLIC KEY-----\r |
| "</span>; |
| |
| <span class="kw">const </span>SAMPLE_LF: <span class="kw-2">&</span><span class="lifetime">'static </span>str = <span class="string">"-----BEGIN RSA PRIVATE KEY----- |
| MIIBPQIBAAJBAOsfi5AGYhdRs/x6q5H7kScxA0Kzzqe6WI6gf6+tc6IvKQJo5rQc |
| dWWSQ0nRGt2hOPDO+35NKhQEjBQxPh/v7n0CAwEAAQJBAOGaBAyuw0ICyENy5NsO |
| 2gkT00AWTSzM9Zns0HedY31yEabkuFvrMCHjscEF7u3Y6PB7An3IzooBHchsFDei |
| AAECIQD/JahddzR5K3A6rzTidmAf1PBtqi7296EnWv8WvpfAAQIhAOvowIXZI4Un |
| DXjgZ9ekuUjZN+GUQRAVlkEEohGLVy59AiEA90VtqDdQuWWpvJX0cM08V10tLXrT |
| TTGsEtITid1ogAECIQDAaFl90ZgS5cMrL3wCeatVKzVUmuJmB/VAmlLFFGzK0QIh |
| ANJGc7AFk4fyFD/OezhwGHbWmo/S+bfeAiIh2Ss2FxKJ |
| -----END RSA PRIVATE KEY----- |
| |
| -----BEGIN RSA PUBLIC KEY----- |
| MIIBOgIBAAJBAMIeCnn9G/7g2Z6J+qHOE2XCLLuPoh5NHTO2Fm+PbzBvafBo0oYo |
| QVVy7frzxmOqx6iIZBxTyfAQqBPO3Br59BMCAwEAAQJAX+PjHPuxdqiwF6blTkS0 |
| RFI1MrnzRbCmOkM6tgVO0cd6r5Z4bDGLusH9yjI9iI84gPRjK0AzymXFmBGuREHI |
| sQIhAPKf4pp+Prvutgq2ayygleZChBr1DC4XnnufBNtaswyvAiEAzNGVKgNvzuhk |
| ijoUXIDruJQEGFGvZTsi1D2RehXiT90CIQC4HOQUYKCydB7oWi1SHDokFW2yFyo6 |
| /+lf3fgNjPI6OQIgUPmTFXciXxT1msh3gFLf3qt2Kv8wbr9Ad9SXjULVpGkCIB+g |
| RzHX0lkJl9Stshd/7Gbt65/QYq+v+xvAeT0CoyIg |
| -----END RSA PUBLIC KEY----- |
| "</span>; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_parse_works() { |
| <span class="kw">let </span>pem = parse(SAMPLE_CRLF).unwrap(); |
| <span class="macro">assert_eq!</span>(pem.tag, <span class="string">"RSA PRIVATE KEY"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_parse_invalid_framing() { |
| <span class="kw">let </span>input = <span class="string">"--BEGIN data----- |
| -----END data-----"</span>; |
| <span class="macro">assert_eq!</span>(parse(<span class="kw-2">&</span>input), <span class="prelude-val">Err</span>(PemError::MalformedFraming)); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_parse_invalid_begin() { |
| <span class="kw">let </span>input = <span class="string">"-----BEGIN ----- |
| MIIBOgIBAAJBAMIeCnn9G/7g2Z6J+qHOE2XCLLuPoh5NHTO2Fm+PbzBvafBo0oYo |
| QVVy7frzxmOqx6iIZBxTyfAQqBPO3Br59BMCAwEAAQJAX+PjHPuxdqiwF6blTkS0 |
| RFI1MrnzRbCmOkM6tgVO0cd6r5Z4bDGLusH9yjI9iI84gPRjK0AzymXFmBGuREHI |
| sQIhAPKf4pp+Prvutgq2ayygleZChBr1DC4XnnufBNtaswyvAiEAzNGVKgNvzuhk |
| ijoUXIDruJQEGFGvZTsi1D2RehXiT90CIQC4HOQUYKCydB7oWi1SHDokFW2yFyo6 |
| /+lf3fgNjPI6OQIgUPmTFXciXxT1msh3gFLf3qt2Kv8wbr9Ad9SXjULVpGkCIB+g |
| RzHX0lkJl9Stshd/7Gbt65/QYq+v+xvAeT0CoyIg |
| -----END RSA PUBLIC KEY-----"</span>; |
| <span class="macro">assert_eq!</span>(parse(<span class="kw-2">&</span>input), <span class="prelude-val">Err</span>(PemError::MissingBeginTag)); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_parse_invalid_end() { |
| <span class="kw">let </span>input = <span class="string">"-----BEGIN DATA----- |
| MIIBOgIBAAJBAMIeCnn9G/7g2Z6J+qHOE2XCLLuPoh5NHTO2Fm+PbzBvafBo0oYo |
| QVVy7frzxmOqx6iIZBxTyfAQqBPO3Br59BMCAwEAAQJAX+PjHPuxdqiwF6blTkS0 |
| RFI1MrnzRbCmOkM6tgVO0cd6r5Z4bDGLusH9yjI9iI84gPRjK0AzymXFmBGuREHI |
| sQIhAPKf4pp+Prvutgq2ayygleZChBr1DC4XnnufBNtaswyvAiEAzNGVKgNvzuhk |
| ijoUXIDruJQEGFGvZTsi1D2RehXiT90CIQC4HOQUYKCydB7oWi1SHDokFW2yFyo6 |
| /+lf3fgNjPI6OQIgUPmTFXciXxT1msh3gFLf3qt2Kv8wbr9Ad9SXjULVpGkCIB+g |
| RzHX0lkJl9Stshd/7Gbt65/QYq+v+xvAeT0CoyIg |
| -----END -----"</span>; |
| <span class="macro">assert_eq!</span>(parse(<span class="kw-2">&</span>input), <span class="prelude-val">Err</span>(PemError::MissingEndTag)); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_parse_invalid_data() { |
| <span class="kw">let </span>input = <span class="string">"-----BEGIN DATA----- |
| MIIBOgIBAAJBAMIeCnn9G/7g2Z6J+qHOE2XCLLuPoh5NHTO2Fm+PbzBvafBo0oY? |
| QVVy7frzxmOqx6iIZBxTyfAQqBPO3Br59BMCAwEAAQJAX+PjHPuxdqiwF6blTkS0 |
| RFI1MrnzRbCmOkM6tgVO0cd6r5Z4bDGLusH9yjI9iI84gPRjK0AzymXFmBGuREHI |
| sQIhAPKf4pp+Prvutgq2ayygleZChBr1DC4XnnufBNtaswyvAiEAzNGVKgNvzuhk |
| ijoUXIDruJQEGFGvZTsi1D2RehXiT90CIQC4HOQUYKCydB7oWi1SHDokFW2yFyo6 |
| /+lf3fgNjPI6OQIgUPmTFXciXxT1msh3gFLf3qt2Kv8wbr9Ad9SXjULVpGkCIB+g |
| RzHX0lkJl9Stshd/7Gbt65/QYq+v+xvAeT0CoyIg |
| -----END DATA-----"</span>; |
| <span class="kw">match </span>parse(<span class="kw-2">&</span>input) { |
| <span class="prelude-val">Err</span>(e @ PemError::InvalidData(<span class="kw">_</span>)) => { |
| <span class="macro">assert_eq!</span>( |
| <span class="kw-2">&</span><span class="macro">format!</span>(<span class="string">"{}"</span>, e.source().unwrap()), |
| <span class="string">"Invalid byte 63, offset 63." |
| </span>); |
| } |
| <span class="kw">_ </span>=> <span class="macro">assert!</span>(<span class="bool-val">false</span>), |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_parse_empty_data() { |
| <span class="kw">let </span>input = <span class="string">"-----BEGIN DATA----- |
| -----END DATA-----"</span>; |
| <span class="kw">let </span>pem = parse(<span class="kw-2">&</span>input).unwrap(); |
| <span class="macro">assert_eq!</span>(pem.contents.len(), <span class="number">0</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_parse_many_works() { |
| <span class="kw">let </span>pems = parse_many(SAMPLE_CRLF); |
| <span class="macro">assert_eq!</span>(pems.len(), <span class="number">2</span>); |
| <span class="macro">assert_eq!</span>(pems[<span class="number">0</span>].tag, <span class="string">"RSA PRIVATE KEY"</span>); |
| <span class="macro">assert_eq!</span>(pems[<span class="number">1</span>].tag, <span class="string">"RSA PUBLIC KEY"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_empty_contents() { |
| <span class="kw">let </span>pem = Pem { |
| tag: String::from(<span class="string">"FOO"</span>), |
| contents: <span class="macro">vec!</span>[], |
| }; |
| <span class="kw">let </span>encoded = encode(<span class="kw-2">&</span>pem); |
| <span class="macro">assert!</span>(encoded != <span class="string">""</span>); |
| |
| <span class="kw">let </span>pem_out = parse(<span class="kw-2">&</span>encoded).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>pem, <span class="kw-2">&</span>pem_out); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_contents() { |
| <span class="kw">let </span>pem = Pem { |
| tag: String::from(<span class="string">"FOO"</span>), |
| contents: <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>], |
| }; |
| <span class="kw">let </span>encoded = encode(<span class="kw-2">&</span>pem); |
| <span class="macro">assert!</span>(encoded != <span class="string">""</span>); |
| |
| <span class="kw">let </span>pem_out = parse(<span class="kw-2">&</span>encoded).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>pem, <span class="kw-2">&</span>pem_out); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_many() { |
| <span class="kw">let </span>pems = parse_many(SAMPLE_CRLF); |
| <span class="kw">let </span>encoded = encode_many(<span class="kw-2">&</span>pems); |
| |
| <span class="macro">assert_eq!</span>(SAMPLE_CRLF, encoded); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_config_contents() { |
| <span class="kw">let </span>pem = Pem { |
| tag: String::from(<span class="string">"FOO"</span>), |
| contents: <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>], |
| }; |
| <span class="kw">let </span>config = EncodeConfig { |
| line_ending: LineEnding::LF, |
| }; |
| <span class="kw">let </span>encoded = encode_config(<span class="kw-2">&</span>pem, config); |
| <span class="macro">assert!</span>(encoded != <span class="string">""</span>); |
| |
| <span class="kw">let </span>pem_out = parse(<span class="kw-2">&</span>encoded).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>pem, <span class="kw-2">&</span>pem_out); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_encode_many_config() { |
| <span class="kw">let </span>pems = parse_many(SAMPLE_LF); |
| <span class="kw">let </span>config = EncodeConfig { |
| line_ending: LineEnding::LF, |
| }; |
| <span class="kw">let </span>encoded = encode_many_config(<span class="kw-2">&</span>pems, config); |
| |
| <span class="macro">assert_eq!</span>(SAMPLE_LF, encoded); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="pem" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
