Merge branch 'master' of github.com:FliegendeWurst/KIT-ILIAS-downloader

This commit is contained in:
funnym0nk3y 2022-01-21 00:04:36 +01:00
commit ee8c99114c
23 changed files with 3801 additions and 1418 deletions

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@ -2,7 +2,8 @@ name: CI
on: on:
push: push:
branches: [ master ] branches:
- '**'
pull_request: pull_request:
branches: [ master ] branches: [ master ]
@ -17,12 +18,14 @@ jobs:
strategy: strategy:
matrix: matrix:
os: [ubuntu-latest, windows-latest] os: [ubuntu-latest, windows-latest]
features: ["--all-features"]
steps: steps:
- uses: actions/checkout@v2 - uses: actions/checkout@v2
- name: Install Rust toolchain - name: Install Rust toolchain
uses: actions-rs/toolchain@v1 uses: actions-rs/toolchain@v1
with: with:
profile: minimal
toolchain: stable toolchain: stable
- name: Cache cargo directories - name: Cache cargo directories
@ -39,12 +42,10 @@ jobs:
path: target path: target
key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }} key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
- name: Build - name: Build
run: cargo build --release --verbose run: cargo build --release ${{ matrix.features }} --verbose
# there are currently no automated tests
- name: Run tests
run: cargo test --release --verbose
- name: Archive artifacts - name: Archive artifacts
uses: actions/upload-artifact@v2 uses: actions/upload-artifact@v2
if: matrix.features == '--all-features'
with: with:
name: Binaries name: Binaries
path: | path: |

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CHANGELOG.md Normal file
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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
## [Unreleased]
## [0.3.1] - 2022-01-07
### Fixed
- `--sync-url` can now be used to download the [course memberships](https://ilias.studium.kit.edu/ilias.php?cmdClass=ilmembershipoverviewgui&cmdNode=iy&baseClass=ilmembershipoverviewgui)
## [0.3.0] - 2022-01-06
### Fixed
- ILIAS 7 update ([#27])
## [0.2.24] - 2021-11-01
### Added
- `--combine-videos` option to merge multiple video streams of the same lecture
- `--save-ilias-pages` option to also save the ILIAS overview pages of courses/folders
- Configuration file to change course names (PR [#19] by [@thelukasprobst])
### Fixed
- Downloading of lectures that consist of multiple streams
## [0.2.23] - 2021-06-14
### Added
- Logging output of saved forum post attachments
### Changed
- ILIAS folder/course pages are now always saved
### Fixed
- Links in saved ILIAS pages now work (see [`<base>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base))
- ZIP of multiple forum post attachments is no longer downloaded
## [0.2.22] - 2021-06-02
### Added
- `--sync-url` can now download more "personal desktop" pages
- `--keep-session` flag to save and restore session cookies
## [0.2.21] - 2021-05-18
### Fixed
- Automatic output directory creation
- HTTP/2 [`NO_ERROR`](https://docs.rs/h2/0.3.3/h2/struct.Reason.html#associatedconstant.NO_ERROR) handling (issue [#15])
- Correct logging output when the progress bar is displayed
## [0.2.20] - 2021-05-13
### Fixed
- Status display no longer prints every path when running in a small terminal
## [0.2.19] - 2021-05-11
### Fixed
- Status display on Windows (issue [#14])
## [0.2.18] - 2021-05-07
### Added
- Request rate limiting (default 8 req. / 60 s, option `--rate`, issue [#13])
## [0.2.17] - 2021-05-04
### Added
- Progress/status display: `[15/40+] <path currently processed>`
- Extraction of course/folder pages (in course.html / folder.html, currently not versioned)
### Fixed
- Downloading of external images in forum posts
- Miscellaneous internal improvements
## [0.2.16] - 2021-04-19
### Added
- `--sync-url` option (to download only a single course/folder)
- `--user` and `--password` options (issue [#10])
- `--keyring` option (to get/save the password using a system keyring service)
- Colored errors/warnings (PR [#11] by [@thelukasprobst])
## [0.2.15] - 2021-04-14
### Added
- Downloading of attachments and embedded images in forum posts
- SOCKS5 proxy support (PR [#9] by [@Craeckie])
## [0.2.14] - 2021-02-16
### Fixed
- Handling of long paths on Windows (issue [#6])
- OpenCast downloading (issue [#7], PR [#8] by [@funnym0nk3y])
## [0.2.13] - 2021-01-05
### Fixed
- Shibboleth login (issue [#5], PR [#4] by [@Ma27])
## [0.2.12] - 2020-12-10
### Fixed
- Handling of invalid filenames on Windows (issue [#3])
## [0.2.11] - 2020-12-04
### Fixed
- Waiting on spawned tasks (issue [#2])
## [0.2.10] - 2020-11-27
### Added
- `.iliaslogin` file to provide login credentials
### Fixed
- Handling of `/` and `\\` in lecture names
## [0.2.9] - 2020-11-01
### Fixed
- OpenCast downloading
## [0.2.8] - 2020-07-16
### Fixed
- OpenCast downloading
## [0.2.7] - 2020-07-15
### Added
- Automatic creation of output directory
- Optional re-check of OpenCast lectures (`--check-videos`)
### Fixed
- OpenCast pagination (20 -> 800)
## [0.2.6] - 2020-05-18
### Added
- Downloading of exercise solutions and feedback
### Fixed
- Video filenames no longer contain raw HTML
## [0.2.5] - 2020-05-09
(undocumented)
## [0.2.4] - 2020-04-28
(undocumented)
## [0.2.3] - 2020-04-24
(undocumented)
## [0.2.2] - 2020-04-22
(undocumented)
## [0.2.1] - 2020-04-22
(undocumented)
## [0.2.0] - 2020-04-22
(undocumented)
## [0.1.0] - 2020-04-21
(undocumented)
[#27]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/27
[#19]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/pull/19
[#15]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/15
[#14]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/14
[#13]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/13
[#11]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/pull/11
[#10]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/10
[#9]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/pull/9
[#8]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/pull/8
[#7]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/7
[#6]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/6
[#5]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/5
[#4]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/pull/4
[#3]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/3
[#2]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/issues/2
[@thelukasprobst]: https://github.com/thelukasprobst
[@Craeckie]: https://github.com/Craeckie
[@funnym0nk3y]: https://github.com/funnym0nk3y
[@Ma27]: https://github.com/Ma27
[Unreleased]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.3.1...HEAD
[0.3.1]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.3.0...v0.3.1
[0.3.0]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.24...v0.3.0
[0.2.24]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.23...v0.2.24
[0.2.23]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.23...v0.2.24
[0.2.23]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.22...v0.2.23
[0.2.22]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.21...v0.2.22
[0.2.21]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.20...v0.2.21
[0.2.20]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.19...v0.2.20
[0.2.19]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.18...v0.2.19
[0.2.18]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.17...v0.2.18
[0.2.17]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.16...v0.2.17
[0.2.16]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.15...v0.2.16
[0.2.15]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.14...v0.2.15
[0.2.14]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.13...v0.2.14
[0.2.13]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.12...v0.2.13
[0.2.12]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.11...v0.2.12
[0.2.11]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.10...v0.2.11
[0.2.10]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.9...v0.2.10
[0.2.9]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.8...v0.2.9
[0.2.8]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.7...v0.2.8
[0.2.7]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.6...v0.2.7
[0.2.6]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.5...v0.2.6
[0.2.5]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.4...v0.2.5
[0.2.4]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.3...v0.2.4
[0.2.3]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.2...v0.2.3
[0.2.2]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.1...v0.2.2
[0.2.1]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.2.0...v0.2.1
[0.2.0]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/v0.1.0...v0.2.0
[0.1.0]: https://github.com/FliegendeWurst/KIT-ILIAS-downloader/compare/1529a678e0f4c78a24c8cc2cd236ce12ea8a78dc..v0.1.0

1457
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@ -1,15 +1,15 @@
[package] [package]
name = "KIT-ILIAS-downloader" name = "KIT-ILIAS-downloader"
version = "0.2.13" version = "0.3.1"
authors = ["FliegendeWurst <2012gdwu@web.de>"] authors = ["FliegendeWurst <2012gdwu@posteo.de>"]
license = "GPL-2.0" license = "GPL-3.0-or-later"
edition = "2018" edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
reqwest = { version = "0.11.0", default-features = false, features = ["cookies", "gzip", "json", "rustls-tls", "stream"] } reqwest = { version = "0.11.0", default-features = false, features = ["cookies", "gzip", "json", "rustls-tls", "stream", "socks"] }
tokio = { version = "1.0.2", features = ["full"] } tokio = { version = "1.0.2", features = ["fs", "macros", "net", "rt-multi-thread", "process"] }
tokio-util = { version = "0.6.1", features = ["io"] } tokio-util = { version = "0.6.1", features = ["io"] }
serde_json = "1.0.51" serde_json = "1.0.51"
scraper = "0.12.0" scraper = "0.12.0"
@ -18,10 +18,21 @@ futures = "0.3.8"
futures-util = "0.3.8" futures-util = "0.3.8"
futures-channel = "0.3.8" futures-channel = "0.3.8"
regex = "1.3.7" regex = "1.3.7"
lazy_static = "1.4.0"
parking_lot = "0.11.0"
structopt = "0.3.13" structopt = "0.3.13"
rpassword = "5.0.0" rpassword = "5.0.0"
rprompt = "1.0.5" rprompt = "1.0.5"
ignore = "0.4.14" ignore = "0.4.14"
anyhow = "1.0.28" anyhow = "1.0.28"
colored = "2.0.0"
keyring = "1.0.0"
cfg-if = "1.0.0"
indicatif = "0.16.0"
once_cell = "1.7.2"
atty = "0.2.14"
h2 = "0.3.3"
cookie_store = "0.15.1"
reqwest_cookie_store = "0.2.0"
bytes = "1.0.1"
toml = "0.5.8"
tempfile = "3.2.0"
ego-tree = "0.6.2"

674
LICENSE Normal file
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GNU GENERAL PUBLIC LICENSE
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Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

View File

@ -2,52 +2,73 @@
Download content from ILIAS. That includes: Download content from ILIAS. That includes:
* files (latest version) * files
* exercise sheets and solutions
* Opencast lectures * Opencast lectures
* forum posts
## Installation ## Installation
Go to the [releases](../../releases) and get the executable for your operating system. Alternatively compile from source: (to get the latest updates) **Windows/Linux users**: go to the [releases](../../releases) and download the executable for your operating system.
**macOS users**: [Install Rust](https://www.rust-lang.org/tools/install) and compile from source:
``` ```
$ git clone https://github.com/FliegendeWurst/KIT-ILIAS-downloader $ cargo install --all-features --git 'https://github.com/FliegendeWurst/KIT-ILIAS-downloader' --branch stable
...
$ cd KIT-ILIAS-downloader
$ cargo build --release
...
$ cp target/release/KIT-ILIAS-downloader [directory in $PATH]
``` ```
## Usage ## Usage
Use `-o <directory>` to specify the download directory. Username and password have to be provided every time the program is run. First, open a terminal. Navigate to the directory that contains the downloaded binary.
Only content on your [personal desktop](https://ilias.studium.kit.edu/ilias.php?baseClass=ilPersonalDesktopGUI&cmd=jumpToSelectedItems) will be downloaded. Then execute the program (use `-o <directory>` to specify the download directory):
```
$ KIT-ILIAS-downloader -o ./ILIAS
```
By default, only content on your [personal desktop](https://ilias.studium.kit.edu/ilias.php?baseClass=ilPersonalDesktopGUI&cmd=jumpToSelectedItems) will be downloaded.
Use the `--sync-url` option to download a specific page and its sub-pages: (the URL should be copied from an ILIAS link, not the browser URL bar)
```
$ KIT-ILIAS-downloader -o ./ILIAS/WS2021-HM1 --sync-url 'https://ilias.studium.kit.edu/ilias.php?ref_id=1276968&cmdClass=ilrepositorygui&cmdNode=uk&baseClass=ilRepositoryGUI'
```
### Options
``` ```
$ KIT-ILIAS-downloader --help $ KIT-ILIAS-downloader --help
KIT-ILIAS-downloader 0.2.5 KIT-ILIAS-downloader 0.2.24
USAGE: USAGE:
KIT-ILIAS-downloader [FLAGS] [OPTIONS] --output <output> KIT-ILIAS-downloader [FLAGS] [OPTIONS] --output <output>
FLAGS: FLAGS:
--content-tree Use content tree (slow but thorough) --check-videos Re-check OpenCast lectures (slow)
--combine-videos Combine videos if there is more than one stream (requires ffmpeg)
--content-tree Use content tree (experimental)
-f Re-download already present files -f Re-download already present files
-t, --forum Download forum content -t, --forum Download forum content
-h, --help Prints help information -h, --help Prints help information
--keep-session Attempt to re-use session cookies
--keyring Use the system keyring
-n, --no-videos Do not download Opencast videos -n, --no-videos Do not download Opencast videos
--save-ilias-pages Save overview pages of ILIAS courses and folders
-s, --skip-files Do not download files -s, --skip-files Do not download files
-V, --version Prints version information -V, --version Prints version information
-v Verbose logging (print objects downloaded) -v Verbose logging
OPTIONS: OPTIONS:
-j, --jobs <jobs> Parallel download jobs [default: 1] -j, --jobs <jobs> Parallel download jobs [default: 1]
-o, --output <output> Output directory -o, --output <output> Output directory
-P, --password <password> KIT account password
-p, --proxy <proxy> Proxy, e.g. socks5h://127.0.0.1:1080
--rate <rate> Requests per minute [default: 8]
--sync-url <sync-url> ILIAS page to download
-U, --username <username> KIT account username
``` ```
### .iliasignore ### .iliasignore
.gitignore syntax can be used in a `.iliasignore` file: (located in the download folder) .gitignore syntax can be used in a `.iliasignore` file: (located in the output folder)
```ignore ```ignore
# example 1: only download a single course # example 1: only download a single course
/*/ /*/
@ -57,16 +78,29 @@ OPTIONS:
!/Course/Tutorien/Tut* 3/ !/Course/Tutorien/Tut* 3/
``` ```
### .iliaslogin ### Credentials
If you don't want to enter your credentials every time you run the program, you can instead save your username and password in a file (`.iliaslogin`): You can use the `--user` and `--keyring` options to get/store the password using the system password store.
If you use Linux, you'll have to compile from source to be able to use this option.
```
$ KIT-ILIAS-downloader -U uabcd --keyring [...]
```
You can also save your username and password in a `.iliaslogin` file: (located in the output folder)
``` ```
username username
password password
``` ```
### Renaming course names (0.2.24+)
If you'd like to avoid unwieldy course names (e.g. "24030 Programmierparadigmen"), you can create a `course_names.toml` file in the output directory. It should contain the desired mapping of course names to folder names, e.g.:
```
"24030 Programmierparadigmen" = "ProPa"
"Numerische Mathematik für die Fachrichtungen Informatik und Ingenieurwesen" = "Numerik"
```
## Similar programs ## Similar programs
- https://github.com/brantsch/kit-ilias-fuse/ - https://github.com/brantsch/kit-ilias-fuse/
- https://github.com/Garmelon/PFERD/ - https://github.com/Garmelon/PFERD/
- https://github.com/DeOldSax/iliasDownloaderTool

8
build.sh Executable file
View File

@ -0,0 +1,8 @@
#!/bin/sh
rustup target add x86_64-unknown-linux-musl
cargo build --locked --release --target x86_64-unknown-linux-musl
rustup target add x86_64-pc-windows-gnu
# if on Debian or similar
sudo apt install mingw-w64
cargo build --locked --release --all-features --target x86_64-pc-windows-gnu

3
rustfmt.toml Normal file
View File

@ -0,0 +1,3 @@
hard_tabs = true
match_block_trailing_comma = true
max_width = 120

6
shell.nix Normal file
View File

@ -0,0 +1,6 @@
with (import <nixpkgs> {});
mkShell {
buildInputs = [
dbus
];
}

177
src/cli.rs Normal file
View File

@ -0,0 +1,177 @@
// SPDX-License-Identifier: GPL-3.0-or-later
use std::path::PathBuf;
use std::sync::atomic::{AtomicBool, AtomicUsize};
use anyhow::anyhow;
use anyhow::{Context, Result};
use indicatif::ProgressBar;
use once_cell::sync::Lazy;
use structopt::StructOpt;
#[derive(Debug, Clone, StructOpt)]
#[structopt(name = env!("CARGO_PKG_NAME"))]
pub struct Opt {
/// Do not download files
#[structopt(short, long)]
pub skip_files: bool,
/// Do not download Opencast videos
#[structopt(short, long)]
pub no_videos: bool,
/// Download forum content
#[structopt(short = "t", long)]
pub forum: bool,
/// Re-download already present files
#[structopt(short)]
pub force: bool,
/// Use content tree (experimental)
#[structopt(long)]
pub content_tree: bool,
/// Re-check OpenCast lectures (slow)
#[structopt(long)]
pub check_videos: bool,
/// Combine videos if there is more than one stream (requires ffmpeg)
#[structopt(long)]
pub combine_videos: bool,
/// Save overview pages of ILIAS courses and folders
#[structopt(long)]
pub save_ilias_pages: bool,
/// Verbose logging
#[structopt(short, multiple = true, parse(from_occurrences))]
pub verbose: usize,
/// Output directory
#[structopt(short, long, parse(from_os_str))]
pub output: PathBuf,
/// Parallel download jobs
#[structopt(short, long, default_value = "1")]
pub jobs: usize,
/// Proxy, e.g. socks5h://127.0.0.1:1080
#[structopt(short, long)]
pub proxy: Option<String>,
/// Use the system keyring
#[structopt(long)]
pub keyring: bool,
/// KIT account username
#[structopt(short = "U", long)]
pub username: Option<String>,
/// KIT account password
#[structopt(short = "P", long)]
pub password: Option<String>,
/// ILIAS page to download
#[structopt(long)]
pub sync_url: Option<String>,
/// Requests per minute
#[structopt(long, default_value = "8")]
pub rate: usize,
/// Attempt to re-use session cookies
#[structopt(long)]
pub keep_session: bool,
}
pub static LOG_LEVEL: AtomicUsize = AtomicUsize::new(0);
pub static PROGRESS_BAR_ENABLED: AtomicBool = AtomicBool::new(false);
pub static PROGRESS_BAR: Lazy<ProgressBar> = Lazy::new(|| ProgressBar::new(0));
macro_rules! log {
($lvl:expr, $($t:expr),+) => {{
#[allow(unused_imports)]
use colored::Colorize as _;
#[allow(unused_comparisons)] // 0 <= 0
if $lvl <= crate::cli::LOG_LEVEL.load(std::sync::atomic::Ordering::SeqCst) {
if crate::cli::PROGRESS_BAR_ENABLED.load(std::sync::atomic::Ordering::SeqCst) {
crate::cli::PROGRESS_BAR.println(format!($($t),+));
} else {
println!($($t),+);
}
}
}}
}
macro_rules! info {
($t:tt) => {
log!(0, $t);
};
}
macro_rules! success {
($t:tt) => {
log!(0, "{}", format!($t).bright_green());
};
}
macro_rules! warning {
($e:expr) => {{
log!(0, "Warning: {}", format!("{:?}", $e).bright_yellow());
}};
($msg:expr, $e:expr) => {{
log!(0, "Warning: {}", format!("{} {:?}", $msg, $e).bright_yellow());
}};
($msg1:expr, $msg2:expr, $e:expr) => {{
log!(0, "Warning: {}", format!("{} {} {:?}", $msg1, $msg2, $e).bright_yellow());
}};
(format => $($e:expr),+) => {{
log!(0, "Warning: {}", format!($($e),+).bright_yellow());
}};
($lvl:expr; $($e:expr),+) => {{
log!($lvl, "Warning: {}", format!($($e),+).bright_yellow());
}};
}
macro_rules! error {
($($prefix:expr),+; $e:expr) => {
log!(0, "{}: {}", format!($($prefix),+), format!("{:?}", $e).bright_red());
};
($e:expr) => {
log!(0, "Error: {}", format!("{:?}", $e).bright_red());
};
}
pub fn ask_user_pass(opt: &Opt) -> Result<(String, String)> {
let user = if let Some(username) = opt.username.as_ref() {
username.clone()
} else {
rprompt::prompt_reply_stdout("Username: ").context("username prompt")?
};
let (pass, should_store);
let keyring = Lazy::new(|| keyring::Entry::new(env!("CARGO_PKG_NAME"), &user));
if let Some(password) = opt.password.as_ref() {
pass = password.clone();
should_store = true;
} else if opt.keyring {
match keyring.get_password() {
Ok(password) => {
pass = password;
should_store = false;
},
Err(e) => {
error!(e);
pass = rpassword::read_password_from_tty(Some("Password: ")).context("password prompt")?;
should_store = true;
}
}
} else {
pass = rpassword::read_password_from_tty(Some("Password: ")).context("password prompt")?;
should_store = true;
}
if should_store && opt.keyring {
keyring.set_password(&pass).map_err(|x| anyhow!(x.to_string()))?;
}
Ok((user, pass))
}

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// SPDX-License-Identifier: GPL-3.0-or-later
use std::{collections::HashMap, error::Error as _, io::Write, sync::Arc};
use anyhow::{anyhow, Context, Result};
use cookie_store::CookieStore;
use ignore::gitignore::Gitignore;
use once_cell::sync::Lazy;
use reqwest::{Client, IntoUrl, Proxy, Url};
use reqwest_cookie_store::CookieStoreMutex;
use scraper::{ElementRef, Html, Selector};
use serde_json::json;
use crate::{cli::Opt, queue, util::wrap_html, ILIAS_URL};
pub mod course;
pub mod exercise;
pub mod file;
pub mod folder;
pub mod forum;
pub mod plugin_dispatch;
pub mod thread;
pub mod video;
pub mod weblink;
static LINKS: Lazy<Selector> = Lazy::new(|| Selector::parse("a").unwrap());
static ALERT_DANGER: Lazy<Selector> = Lazy::new(|| Selector::parse("div.alert-danger").unwrap());
static IL_CONTENT_CONTAINER: Lazy<Selector> = Lazy::new(|| Selector::parse("#il_center_col").unwrap());
static BLOCK_FAVORITES: Lazy<Selector> = Lazy::new(|| Selector::parse("#block_pditems_0").unwrap());
static ITEM_PROP: Lazy<Selector> = Lazy::new(|| Selector::parse("span.il_ItemProperty").unwrap());
static CONTAINER_ITEMS: Lazy<Selector> = Lazy::new(|| Selector::parse("div.il_ContainerListItem, .il-std-item").unwrap());
static CONTAINER_ITEM_TITLE: Lazy<Selector> = Lazy::new(|| Selector::parse("a.il_ContainerItemTitle, .il-item-title > a").unwrap());
pub struct ILIAS {
pub opt: Opt,
pub ignore: Gitignore,
client: Client,
cookies: Arc<CookieStoreMutex>,
pub course_names: HashMap<String, String>,
}
/// Returns true if the error is caused by:
/// "http2 error: protocol error: not a result of an error"
fn error_is_http2(error: &reqwest::Error) -> bool {
error
.source() // hyper::Error
.map(|x| x.source()) // h2::Error
.flatten()
.map(|x| x.downcast_ref::<h2::Error>())
.flatten()
.map(|x| x.reason())
.flatten()
.map(|x| x == h2::Reason::NO_ERROR)
.unwrap_or(false)
}
impl ILIAS {
// TODO: de-duplicate the logic below
pub async fn with_session(
opt: Opt,
session: Arc<CookieStoreMutex>,
ignore: Gitignore,
course_names: HashMap<String, String>,
) -> Result<Self> {
let mut builder = Client::builder()
.cookie_provider(Arc::clone(&session))
.user_agent(concat!(env!("CARGO_PKG_NAME"), "/", env!("CARGO_PKG_VERSION")));
if let Some(proxy) = opt.proxy.as_ref() {
let proxy = Proxy::all(proxy)?;
builder = builder.proxy(proxy);
}
let client = builder
// timeout is infinite by default
.build()?;
info!("Re-using previous session cookies..");
Ok(ILIAS {
opt,
ignore,
client,
cookies: session,
course_names,
})
}
pub async fn login(
opt: Opt,
user: &str,
pass: &str,
ignore: Gitignore,
course_names: HashMap<String, String>,
) -> Result<Self> {
let cookie_store = CookieStore::default();
let cookie_store = reqwest_cookie_store::CookieStoreMutex::new(cookie_store);
let cookie_store = std::sync::Arc::new(cookie_store);
let mut builder = Client::builder()
.cookie_provider(Arc::clone(&cookie_store))
.user_agent(concat!(env!("CARGO_PKG_NAME"), "/", env!("CARGO_PKG_VERSION")));
if let Some(proxy) = opt.proxy.as_ref() {
let proxy = Proxy::all(proxy)?;
builder = builder.proxy(proxy);
}
let client = builder
// timeout is infinite by default
.build()?;
let this = ILIAS {
opt,
ignore,
client,
cookies: cookie_store,
course_names,
};
info!("Logging into ILIAS using KIT account..");
let session_establishment = this
.client
.post("https://ilias.studium.kit.edu/Shibboleth.sso/Login")
.form(&json!({
"sendLogin": "1",
"idp_selection": "https://idp.scc.kit.edu/idp/shibboleth",
"target": "/shib_login.php?target=",
"home_organization_selection": "Mit KIT-Account anmelden"
}))
.send()
.await?;
let url = session_establishment.url().clone();
let text = session_establishment.text().await?;
let dom_sso = Html::parse_document(text.as_str());
let csrf_token = dom_sso
.select(&Selector::parse(r#"input[name="csrf_token"]"#).unwrap())
.next()
.context("no CSRF token found")?
.value()
.attr("value")
.context("no CSRF token value")?;
info!("Logging into Shibboleth..");
let login_response = this
.client
.post(url)
.form(&json!({
"j_username": user,
"j_password": pass,
"_eventId_proceed": "",
"csrf_token": csrf_token,
}))
.send()
.await?
.text()
.await?;
let dom = Html::parse_document(&login_response);
let saml = Selector::parse(r#"input[name="SAMLResponse"]"#).unwrap();
let saml = dom
.select(&saml)
.next()
.context("no SAML response, incorrect password?")?;
let relay_state = Selector::parse(r#"input[name="RelayState"]"#).unwrap();
let relay_state = dom.select(&relay_state).next().context("no relay state")?;
info!("Logging into ILIAS..");
this.client
.post("https://ilias.studium.kit.edu/Shibboleth.sso/SAML2/POST")
.form(&json!({
"SAMLResponse": saml.value().attr("value").context("no SAML value")?,
"RelayState": relay_state.value().attr("value").context("no RelayState value")?
}))
.send()
.await?;
success!("Logged in!");
Ok(this)
}
pub async fn save_session(&self) -> Result<()> {
let session_path = self.opt.output.join(".iliassession");
let mut writer = std::fs::File::create(session_path)
.map(std::io::BufWriter::new)
.unwrap();
let store = self.cookies.lock().map_err(|x| anyhow!("{}", x))?;
// save all cookies, including session cookies
for cookie in store.iter_unexpired().map(serde_json::to_string) {
writeln!(writer, "{}", cookie?)?;
}
writer.flush()?;
Ok(())
}
pub async fn download(&self, url: &str) -> Result<reqwest::Response> {
queue::get_request_ticket().await;
log!(2, "Downloading {}", url);
let url = if url.starts_with("http://") || url.starts_with("https://") {
url.to_owned()
} else if url.starts_with("ilias.studium.kit.edu") {
format!("https://{}", url)
} else {
format!("{}{}", ILIAS_URL, url)
};
for attempt in 1..10 {
let result = self.client.get(url.clone()).send().await;
match result {
Ok(x) => return Ok(x),
Err(e) if attempt <= 3 && error_is_http2(&e) => {
warning!(1; "encountered HTTP/2 NO_ERROR, retrying download..");
continue;
},
Err(e) => return Err(e.into()),
}
}
unreachable!()
}
pub async fn head<U: IntoUrl>(&self, url: U) -> Result<reqwest::Response, reqwest::Error> {
queue::get_request_ticket().await;
let url = url.into_url()?;
for attempt in 1..10 {
let result = self.client.head(url.clone()).send().await;
match result {
Ok(x) => return Ok(x),
Err(e) if attempt <= 3 && error_is_http2(&e) => {
warning!(1; "encountered HTTP/2 NO_ERROR, retrying HEAD request..");
continue;
},
Err(e) => return Err(e),
}
}
unreachable!()
}
pub async fn get_html(&self, url: &str) -> Result<Html> {
let resp = self.download(url).await?;
if resp
.url()
.query()
.map(|x| x.contains("reloadpublic=1") || x.contains("cmd=force_login"))
.unwrap_or(false)
{
return Err(anyhow!("not logged in / session expired"));
}
let text = self.download(url).await?.text().await?;
let html = Html::parse_document(&text);
if html.select(&ALERT_DANGER).next().is_some() {
Err(anyhow!("ILIAS error"))
} else {
Ok(html)
}
}
pub async fn get_html_fragment(&self, url: &str) -> Result<Html> {
let text = self.download(url).await?.text().await?;
let html = Html::parse_fragment(&text);
if html.select(&ALERT_DANGER).next().is_some() {
Err(anyhow!("ILIAS error"))
} else {
Ok(html)
}
}
pub fn get_items(html: &Html) -> Vec<Result<Object>> {
let html = if let Some(favorites) = html.select(&BLOCK_FAVORITES).next() {
favorites
} else {
html.root_element()
};
html.select(&CONTAINER_ITEMS)
.flat_map(|item| {
item.select(&CONTAINER_ITEM_TITLE)
.next()
.map(|link| Object::from_link(item, link))
// items without links are ignored
})
.collect()
}
/// Returns subfolders and the main text in a course/folder/personal desktop.
pub async fn get_course_content(&self, url: &URL) -> Result<(Vec<Result<Object>>, Option<String>)> {
let html = self.get_html(&url.url).await?;
let main_text = if let Some(el) = html.select(&IL_CONTENT_CONTAINER).next() {
// if we are currently extracting the dashboard, only select the favorites
if let Some(el) = el.select(&BLOCK_FAVORITES).next() {
Some(wrap_html(&el.inner_html()))
} else {
Some(wrap_html(&el.inner_html()))
}
} else {
None
};
Ok((ILIAS::get_items(&html), main_text))
}
pub async fn get_course_content_tree(&self, ref_id: &str, cmd_node: &str) -> Result<Vec<Object>> {
// TODO: this magically does not return sub-folders
// opening the same url in browser does show sub-folders?!
let url = format!(
"{}ilias.php?ref_id={}&cmdClass=ilobjcoursegui&cmd=showRepTree&cmdNode={}&baseClass=ilRepositoryGUI&cmdMode=asynch&exp_cmd=getNodeAsync&node_id=exp_node_rep_exp_{}&exp_cont=il_expl2_jstree_cont_rep_exp&searchterm=",
ILIAS_URL, ref_id, cmd_node, ref_id
);
let html = self.get_html_fragment(&url).await?;
let mut items = Vec::new();
for link in html.select(&LINKS) {
if link.value().attr("href").is_some() {
items.push(Object::from_link(link, link)?);
} // else: disabled course
}
Ok(items)
}
}
trait IliasObject {
fn download(ilias: Arc<ILIAS>) -> Result<()>;
}
#[derive(Debug)]
pub enum Object {
Course { name: String, url: URL },
Folder { name: String, url: URL },
Dashboard { url: URL },
File { name: String, url: URL },
Forum { name: String, url: URL },
Thread { url: URL },
Wiki { name: String, url: URL },
ExerciseHandler { name: String, url: URL },
Weblink { name: String, url: URL },
Survey { name: String, url: URL },
Presentation { name: String, url: URL },
PluginDispatch { name: String, url: URL },
Video { url: URL },
Generic { name: String, url: URL },
}
use Object::*;
impl Object {
pub fn name(&self) -> &str {
match self {
Course { name, .. }
| Folder { name, .. }
| File { name, .. }
| Forum { name, .. }
| Wiki { name, .. }
| Weblink { name, .. }
| Survey { name, .. }
| Presentation { name, .. }
| ExerciseHandler { name, .. }
| PluginDispatch { name, .. }
| Generic { name, .. } => &name,
Thread { url } => &url.thr_pk.as_ref().unwrap(),
Video { url } => &url.url,
Dashboard { url } => &url.url
}
}
pub fn url(&self) -> &URL {
match self {
Course { url, .. }
| Folder { url, .. }
| Dashboard { url }
| File { url, .. }
| Forum { url, .. }
| Thread { url }
| Wiki { url, .. }
| Weblink { url, .. }
| Survey { url, .. }
| Presentation { url, .. }
| ExerciseHandler { url, .. }
| PluginDispatch { url, .. }
| Video { url }
| Generic { url, .. } => &url,
}
}
pub fn kind(&self) -> &str {
match self {
Course { .. } => "course",
Folder { .. } => "folder",
Dashboard { .. } => "dashboard",
File { .. } => "file",
Forum { .. } => "forum",
Thread { .. } => "thread",
Wiki { .. } => "wiki",
Weblink { .. } => "weblink",
Survey { .. } => "survey",
Presentation { .. } => "presentation",
ExerciseHandler { .. } => "exercise handler",
PluginDispatch { .. } => "plugin dispatch",
Video { .. } => "video",
Generic { .. } => "generic",
}
}
pub fn is_dir(&self) -> bool {
matches!(
self,
Course { .. }
| Folder { .. } | Dashboard { .. }
| Forum { .. } | Thread { .. }
| Wiki { .. } | ExerciseHandler { .. }
| PluginDispatch { .. }
)
}
pub fn from_link(item: ElementRef, link: ElementRef) -> Result<Self> {
let name = link.text().collect::<String>().replace('/', "-").trim().to_owned();
let url = URL::from_href(link.value().attr("href").context("link missing href")?)?;
Object::from_url(url, name, Some(item))
}
pub fn from_url(mut url: URL, mut name: String, item: Option<ElementRef>) -> Result<Self> {
if url.thr_pk.is_some() {
return Ok(Thread { url });
}
if url.url.starts_with("https://ilias.studium.kit.edu/goto.php") {
let target = url.target.as_deref().unwrap_or("NONE");
if target.starts_with("wiki_") {
return Ok(Wiki {
name,
url, // TODO: insert ref_id here
});
}
if target.starts_with("root_") {
// magazine link
return Ok(Generic { name, url });
}
if target.starts_with("crs_") {
let ref_id = url.target.as_ref().unwrap().split('_').nth(1).unwrap();
url.ref_id = ref_id.to_owned();
return Ok(Course { name, url });
}
if target.starts_with("frm_") {
// TODO: extract post link? (this codepath should only be hit when parsing the content tree)
let ref_id = url.target.as_ref().unwrap().split('_').nth(1).unwrap();
url.ref_id = ref_id.to_owned();
return Ok(Forum { name, url });
}
if target.starts_with("lm_") {
// fancy interactive task
return Ok(Presentation { name, url });
}
if target.starts_with("fold_") {
let ref_id = url.target.as_ref().unwrap().split('_').nth(1).unwrap();
url.ref_id = ref_id.to_owned();
return Ok(Folder { name, url });
}
if target.starts_with("file_") {
if !target.ends_with("download") {
// download page containing metadata
return Ok(Generic { name, url });
} else {
let mut item_props = item
.context("can't construct file object without HTML object")?
.select(&ITEM_PROP);
let ext = item_props.next().context("cannot find file extension")?;
let version = item_props
.nth(1)
.context("cannot find 3rd file metadata")?
.text()
.collect::<String>();
let version = version.trim();
if let Some(v) = version.strip_prefix("Version: ") {
name += "_v";
name += v;
}
return Ok(File {
name: format!("{}.{}", name, ext.text().collect::<String>().trim()),
url,
});
}
}
return Ok(Generic { name, url });
}
if url.cmd.as_deref() == Some("showThreads") {
return Ok(Forum { name, url });
}
// class name is *sometimes* in CamelCase
Ok(match &*url.baseClass.to_ascii_lowercase() {
"ilexercisehandlergui" => ExerciseHandler { name, url },
"ililwikihandlergui" => Wiki { name, url },
"illinkresourcehandlergui" => Weblink { name, url },
"ilobjsurveygui" => Survey { name, url },
"illmpresentationgui" => Presentation { name, url },
"ilrepositorygui" => match url.cmd.as_deref() {
Some("view") | Some("render") => Folder { name, url },
Some(_) => Generic { name, url },
None => Course { name, url },
},
"ilobjplugindispatchgui" => PluginDispatch { name, url },
// both the dashboard and the membership overview page work the same
"ildashboardgui" | "ilmembershipoverviewgui" => Dashboard { url },
_ => Generic { name, url },
})
}
pub(crate) fn is_ignored_by_option(&self, opt: &Opt) -> bool {
(matches!(self, Object::Forum { .. }) && !opt.forum)
|| (matches!(self, Object::Video { .. }) && opt.no_videos)
|| (matches!(self, Object::File { .. }) && opt.skip_files)
}
}
#[allow(non_snake_case)]
#[derive(Debug)]
pub struct URL {
pub url: String,
baseClass: String,
pub cmd: Option<String>,
pub thr_pk: Option<String>,
pub ref_id: String,
target: Option<String>,
}
#[allow(non_snake_case)]
impl URL {
pub fn raw(url: String) -> Self {
URL {
url,
baseClass: String::new(),
cmd: None,
thr_pk: None,
ref_id: String::new(),
target: None,
}
}
pub fn from_href(href: &str) -> Result<Self> {
let url = if !href.starts_with(ILIAS_URL) {
Url::parse(&format!("{}{}", ILIAS_URL, href))?
} else {
Url::parse(href)?
};
let mut baseClass = String::new();
let mut cmd = None;
let mut thr_pk = None;
let mut ref_id = String::new();
let mut target = None;
for (k, v) in url.query_pairs() {
match &*k {
"baseClass" => baseClass = v.into_owned(),
"cmd" => cmd = Some(v.into_owned()),
"thr_pk" => thr_pk = Some(v.into_owned()),
"ref_id" => ref_id = v.into_owned(),
"target" => target = Some(v.into_owned()),
_ => {},
}
}
Ok(URL {
url: url.into(),
baseClass,
cmd,
thr_pk,
ref_id,
target,
})
}
}

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use std::{path::PathBuf, sync::Arc};
use anyhow::{Context, Result};
use once_cell::sync::Lazy;
use regex::Regex;
use crate::{
process_gracefully,
queue::spawn,
util::{file_escape, write_file_data},
};
use super::{ILIAS, URL};
static CMD_NODE_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r#"cmdNode=uf:\w\w"#).unwrap());
pub async fn download(path: PathBuf, ilias: Arc<ILIAS>, url: &URL, name: &str) -> Result<()> {
let content = if ilias.opt.content_tree {
let html = ilias.download(&url.url).await?.text().await?;
let cmd_node = CMD_NODE_REGEX.find(&html).context("can't find cmdNode")?.as_str()[8..].to_owned();
let content_tree = ilias.get_course_content_tree(&url.ref_id, &cmd_node).await;
match content_tree {
Ok(tree) => (tree.into_iter().map(Result::Ok).collect(), None),
Err(e) => {
// some folders are hidden on the course page and can only be found via the RSS feed / recent activity / content tree sidebar
// TODO: this is probably never the case for folders?
if html.contains(r#"input[name="cmd[join]""#) {
return Ok(()); // ignore groups we are not in
}
warning!(name, "falling back to incomplete course content extractor!", e);
ilias.get_course_content(&url).await? // TODO: perhaps don't download almost the same content 3x
},
}
} else {
ilias.get_course_content(&url).await?
};
if ilias.opt.save_ilias_pages {
if let Some(s) = content.1.as_ref() {
let path = path.join("course.html");
write_file_data(&path, &mut s.as_bytes())
.await
.context("failed to write course page html")?;
}
}
for item in content.0 {
let item = item?;
let path = path.join(file_escape(item.name()));
let ilias = Arc::clone(&ilias);
spawn(process_gracefully(ilias, path, item));
}
Ok(())
}

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use std::{collections::HashSet, path::Path, sync::Arc};
use anyhow::{Context, Result};
use once_cell::sync::Lazy;
use scraper::Selector;
use crate::{process_gracefully, queue::spawn, util::file_escape};
use super::{Object, ILIAS, URL};
static LINKS: Lazy<Selector> = Lazy::new(|| Selector::parse("a").unwrap());
static FORM_GROUP: Lazy<Selector> = Lazy::new(|| Selector::parse(".form-group").unwrap());
static FORM_NAME: Lazy<Selector> = Lazy::new(|| Selector::parse(".il_InfoScreenProperty").unwrap());
pub async fn download(path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
let html = ilias.get_html(&url.url).await?;
let mut filenames = HashSet::new();
for row in html.select(&FORM_GROUP) {
let link = row.select(&LINKS).next();
if link.is_none() {
continue;
}
let link = link.unwrap();
let href = link.value().attr("href");
if href.is_none() {
continue;
}
let href = href.unwrap();
let url = URL::from_href(href)?;
let cmd = url.cmd.as_deref().unwrap_or("");
if cmd != "downloadFile" && cmd != "downloadGlobalFeedbackFile" && cmd != "downloadFeedbackFile" {
continue;
}
// link is definitely just a download link to the exercise or the solution
let name = row
.select(&FORM_NAME)
.next()
.context("link without file name")?
.text()
.collect::<String>()
.trim()
.to_owned();
let item = Object::File { url, name };
let mut path = path.to_owned();
// handle files with the same name
let filename = file_escape(item.name());
let mut parts = filename.rsplitn(2, '.');
let extension = parts.next().unwrap_or(&filename);
let name = parts.next().unwrap_or("");
let mut unique_filename = filename.clone();
let mut i = 1;
while filenames.contains(&unique_filename) {
i += 1;
if name.is_empty() {
unique_filename = format!("{}{}", extension, i);
} else {
unique_filename = format!("{}{}.{}", name, i, extension);
}
}
filenames.insert(unique_filename.clone());
path.push(unique_filename);
let ilias = Arc::clone(&ilias);
spawn(process_gracefully(ilias, path, item));
}
Ok(())
}

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use std::{path::Path, sync::Arc};
use anyhow::Result;
use tokio::fs;
use crate::util::write_stream_to_file;
use super::{ILIAS, URL};
pub async fn download(path: &Path, relative_path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
if ilias.opt.skip_files {
return Ok(());
}
if !ilias.opt.force && fs::metadata(&path).await.is_ok() {
log!(2, "Skipping download, file exists already");
return Ok(());
}
let data = ilias.download(&url.url).await?;
log!(0, "Writing {}", relative_path.to_string_lossy());
write_stream_to_file(&path, data.bytes_stream()).await?;
Ok(())
}

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use std::{path::Path, sync::Arc};
use anyhow::{Context, Result};
use crate::{
process_gracefully,
queue::spawn,
util::{file_escape, write_file_data},
};
use super::{ILIAS, URL};
pub async fn download(path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
let content = ilias.get_course_content(&url).await?;
if ilias.opt.save_ilias_pages {
if let Some(s) = content.1.as_ref() {
let path = path.join("folder.html");
write_file_data(&path, &mut s.as_bytes())
.await
.context("failed to write folder page html")?;
}
}
for item in content.0 {
let item = item?;
let path = path.join(file_escape(
ilias.course_names.get(item.name()).map(|x| &**x).unwrap_or(item.name()),
));
let ilias = Arc::clone(&ilias);
spawn(process_gracefully(ilias, path, item));
}
Ok(())
}

100
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use std::{path::Path, sync::Arc};
use anyhow::{Context, Result};
use once_cell::sync::Lazy;
use scraper::{Html, Selector};
use crate::{ilias::Object, process_gracefully, queue::spawn, util::file_escape};
use super::{ILIAS, URL};
static LINKS: Lazy<Selector> = Lazy::new(|| Selector::parse("a").unwrap());
static TABLE_HEADER: Lazy<Selector> = Lazy::new(|| Selector::parse("th").unwrap());
static TABLE_ROW: Lazy<Selector> = Lazy::new(|| Selector::parse("tr").unwrap());
static TABLE_CELLS: Lazy<Selector> = Lazy::new(|| Selector::parse("td").unwrap());
static FORUM_PAGES: Lazy<Selector> =
Lazy::new(|| Selector::parse("div.ilTableNav > table > tbody > tr > td > a").unwrap());
const NO_ENTRIES: &str = "Keine Einträge";
pub async fn download(path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
if !ilias.opt.forum {
return Ok(());
}
let url = &url.url;
let html = {
let data = ilias.download(url);
let html_text = data.await?.text().await?;
let url = {
let html = Html::parse_document(&html_text);
let thread_count_selector = html
.select(&LINKS)
.flat_map(|x| x.value().attr("href"))
.find(|x| x.contains("trows=800"));
if thread_count_selector.is_none() {
if let Some(cell) = html.select(&TABLE_CELLS).next() {
if cell.text().any(|x| x == NO_ENTRIES) {
return Ok(()); // empty forum
}
}
}
thread_count_selector
.context("can't find forum thread count selector (empty forum?)")?
.to_owned()
};
let data = ilias.download(&url);
let html = data.await?.text().await?;
Html::parse_document(&html)
};
for row in html.select(&TABLE_ROW) {
if row.value().attr("class") == Some("hidden-print") {
continue; // thread count
}
if row.select(&TABLE_HEADER).next().is_some() {
continue;
}
let cells = row.select(&TABLE_CELLS).collect::<Vec<_>>();
if cells.len() != 6 {
warning!(format =>
"Warning: {}{} {} {}",
"unusual table row (", cells.len(), "cells) in", url.to_string()
);
continue;
}
let link = cells[1].select(&LINKS).next().context("thread link not found")?;
let object = Object::from_link(link, link)?;
let mut path = path.to_owned();
let name = format!(
"{}_{}",
object.url().thr_pk.as_ref().context("thr_pk not found for thread")?,
link.text().collect::<String>().trim()
);
path.push(file_escape(&name));
// FIXME: this heuristic no longer works after downloading attachments
// TODO: set modification date?
let saved_posts = {
match std::fs::read_dir(&path) {
// TODO: make this async
Ok(stream) => stream.count(),
Err(_) => 0,
}
};
let available_posts = cells[3]
.text()
.next()
.unwrap_or_default()
.trim()
.parse::<usize>()
.context("parsing post count failed")?;
if available_posts <= saved_posts && !ilias.opt.force {
continue;
}
let ilias = Arc::clone(&ilias);
spawn(process_gracefully(ilias, path, object));
}
if html.select(&FORUM_PAGES).count() > 0 {
log!(0, "Ignoring older threads in {:?}..", path);
}
Ok(())
}

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@ -0,0 +1,92 @@
use std::{path::Path, sync::Arc};
use anyhow::{Context, Result};
use once_cell::sync::Lazy;
use regex::Regex;
use reqwest::Url;
use scraper::{Html, Selector};
use crate::{ilias::Object, process_gracefully, queue::spawn, util::file_escape, ILIAS_URL};
use super::{ILIAS, URL};
static LINKS: Lazy<Selector> = Lazy::new(|| Selector::parse("a").unwrap());
static A_TARGET_BLANK: Lazy<Selector> = Lazy::new(|| Selector::parse(r#"a[target="_blank"]"#).unwrap());
static VIDEO_ROWS: Lazy<Selector> = Lazy::new(|| Selector::parse(".ilTableOuter > div > table > tbody > tr").unwrap());
static TABLE_CELLS: Lazy<Selector> = Lazy::new(|| Selector::parse("td").unwrap());
static LIST_URL: Lazy<Regex> = Lazy::new(|| Regex::new("ilias\\.php\\?ref_id=\\d+&cmdClass=xocteventgui&cmdNode=.{8}q&baseClass=ilObjPluginDispatchGUI&lang=.{2}&limit=20&cmd=asyncGetTableGUI&cmdMode=asynch").unwrap());
const NO_ENTRIES: &str = "Keine Einträge";
pub async fn download(path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
if ilias.opt.no_videos {
return Ok(());
}
let full_url = {
let html = ilias.download(&url.url).await?.text().await?;
let list_url = LIST_URL.find(&html).context("failed to find xoct event link")?.as_str();
let full_list_url = format!("{}{}", ILIAS_URL, list_url);
// first find the link to full video list
log!(1, "Loading {}", full_list_url);
let data = ilias.download(&full_list_url).await?;
let html = data.text().await?;
let html = Html::parse_fragment(&html);
html.select(&LINKS)
.filter_map(|link| link.value().attr("href"))
.filter(|href| href.contains("trows=800"))
.map(|x| x.to_string())
.next()
.context("video list link not found")?
};
log!(1, "Rewriting {}", full_url);
let mut full_url = Url::parse(&format!("{}{}", ILIAS_URL, full_url))?;
let mut query_parameters = full_url
.query_pairs()
.map(|(x, y)| (x.into_owned(), y.into_owned()))
.collect::<Vec<_>>();
for (key, value) in &mut query_parameters {
match key.as_ref() {
"cmd" => *value = "asyncGetTableGUI".into(),
"cmdClass" => *value = "xocteventgui".into(),
_ => {},
}
}
query_parameters.push(("cmdMode".into(), "asynch".into()));
full_url
.query_pairs_mut()
.clear()
.extend_pairs(&query_parameters)
.finish();
log!(1, "Loading {}", full_url);
let data = ilias.download(full_url.as_str()).await?;
let html = data.text().await?;
let html = Html::parse_fragment(&html);
for row in html.select(&VIDEO_ROWS) {
let link = row.select(&A_TARGET_BLANK).next();
if link.is_none() {
if !row.text().any(|x| x == NO_ENTRIES) {
warning!(format => "table row without link in {}", url.url);
}
continue;
}
let link = link.unwrap();
let mut cells = row.select(&TABLE_CELLS);
if let Some(title) = cells.nth(2) {
let title = title.text().collect::<String>();
let title = title.trim();
if title.starts_with("<div") {
continue;
}
let mut path = path.to_owned();
path.push(format!("{}.mp4", file_escape(title)));
log!(1, "Found video: {}", title);
let video = Object::Video {
url: URL::raw(link.value().attr("href").context("video link without href")?.to_owned()),
};
let ilias = Arc::clone(&ilias);
spawn(process_gracefully(ilias, path, video));
}
}
Ok(())
}

154
src/ilias/thread.rs Normal file
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@ -0,0 +1,154 @@
use std::{path::Path, sync::Arc};
use anyhow::{anyhow, Context, Result};
use once_cell::sync::Lazy;
use regex::Regex;
use scraper::Selector;
use crate::{
handle_gracefully, process_gracefully,
queue::spawn,
util::{file_escape, wrap_html, write_file_data},
};
use super::{Object, ILIAS, URL};
static LINKS: Lazy<Selector> = Lazy::new(|| Selector::parse("a").unwrap());
static IMAGES: Lazy<Selector> = Lazy::new(|| Selector::parse("img").unwrap());
static TABLES: Lazy<Selector> = Lazy::new(|| Selector::parse("table").unwrap());
static LINK_IN_TABLE: Lazy<Selector> = Lazy::new(|| Selector::parse("tbody tr td a").unwrap());
static POST_ROW: Lazy<Selector> = Lazy::new(|| Selector::parse(".ilFrmPostRow").unwrap());
static POST_TITLE: Lazy<Selector> = Lazy::new(|| Selector::parse(".ilFrmPostTitle").unwrap());
static POST_CONTAINER: Lazy<Selector> = Lazy::new(|| Selector::parse(".ilFrmPostContentContainer").unwrap());
static POST_ATTACHMENTS: Lazy<Selector> = Lazy::new(|| Selector::parse(".ilFrmPostAttachmentsContainer").unwrap());
static SPAN_SMALL: Lazy<Selector> = Lazy::new(|| Selector::parse("span.small").unwrap());
static IMAGE_SRC_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r#"\./data/produktiv/mobs/mm_(\d+)/([^?]+).+"#).unwrap());
pub async fn download(path: &Path, relative_path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
if !ilias.opt.forum {
return Ok(());
}
let mut all_images = Vec::new();
let mut attachments = Vec::new();
{
let html = ilias.get_html(&url.url).await?;
for post in html.select(&POST_ROW) {
let title = post
.select(&POST_TITLE)
.next()
.context("post title not found")?
.text()
.collect::<String>();
let author = post.select(&SPAN_SMALL).next().context("post author not found")?;
let author = author.text().collect::<String>();
let author = author.trim().split('|').collect::<Vec<_>>();
let author = if author.len() == 2 {
author[0] // pseudonymous forum
} else if author.len() == 3 {
if author[1] != "Pseudonym" {
author[1]
} else {
author[0]
}
} else {
return Err(anyhow!("author data in unknown format"));
}
.trim();
let container = post
.select(&POST_CONTAINER)
.next()
.context("post container not found")?;
let link = container.select(&LINKS).next().context("post link not found")?;
let id = link.value().attr("id").context("no id in thread link")?.to_owned();
let name = format!("{}_{}_{}.html", id, author, title.trim());
let data = wrap_html(&container.inner_html());
let path = path.join(file_escape(&name));
let relative_path = relative_path.join(file_escape(&name));
spawn(handle_gracefully(async move {
log!(0, "Writing {}", relative_path.display());
write_file_data(&path, &mut data.as_bytes())
.await
.context("failed to write forum post")
}));
let images = container
.select(&IMAGES)
.map(|x| x.value().attr("src").map(|x| x.to_owned()));
for image in images {
let image = image.context("no src on image")?;
all_images.push((id.clone(), image));
}
if let Some(container) = container.select(&POST_ATTACHMENTS).next() {
for attachment in container.select(&LINKS) {
let href = attachment
.value()
.attr("href")
.map(|x| x.to_owned())
.context("attachment link without href")?;
if href.contains("cmd=deliverZipFile") {
continue; // skip downloading all attachments as zip
}
attachments.push((id.clone(), attachment.text().collect::<String>(), href));
}
}
}
// pagination
if let Some(pages) = html.select(&TABLES).next() {
if let Some(last) = pages.select(&LINK_IN_TABLE).last() {
let text = last.text().collect::<String>();
if text.trim() == ">>" {
// not last page yet
let ilias = Arc::clone(&ilias);
let next_page = Object::Thread {
url: URL::from_href(last.value().attr("href").context("page link not found")?)?,
};
spawn(process_gracefully(ilias, path.to_owned(), next_page));
}
} else {
log!(
0,
"Warning: {} {}",
"unable to find pagination links in".bright_yellow(),
url.url.to_string().bright_yellow()
);
}
}
}
for (id, image) in all_images {
let src = URL::from_href(&image)?;
let dl = ilias.download(&src.url).await?;
let mut path = path.to_owned();
let file_name = if let Some(m) = IMAGE_SRC_REGEX.captures(&image) {
// image uploaded to ILIAS
let (media_id, filename) = (m.get(1).unwrap().as_str(), m.get(2).unwrap().as_str());
file_escape(&format!("{}_{}_{}", id, media_id, filename))
} else {
// external image
file_escape(&format!("{}_{}", id, image))
};
path.push(&file_name);
let relative_path = relative_path.join(file_name);
spawn(handle_gracefully(async move {
let bytes = dl.bytes().await?;
log!(0, "Writing {}", relative_path.display());
write_file_data(&path, &mut &*bytes)
.await
.context("failed to write forum post image attachment")
}));
}
for (id, name, url) in attachments {
let src = URL::from_href(&url)?;
let dl = ilias.download(&src.url).await?;
let mut path = path.to_owned();
let file_name = file_escape(&format!("{}_{}", id, name));
path.push(&file_name);
let relative_path = relative_path.join(file_name);
spawn(handle_gracefully(async move {
let bytes = dl.bytes().await?;
log!(0, "Writing {}", relative_path.display());
write_file_data(&path, &mut &*bytes)
.await
.context("failed to write forum post file attachment")
}));
}
Ok(())
}

134
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@ -0,0 +1,134 @@
use std::{
path::{Path, PathBuf},
process::Stdio,
sync::Arc,
};
use anyhow::{Context, Result};
use once_cell::sync::Lazy;
use regex::Regex;
use tempfile::tempdir;
use tokio::{fs, process::Command};
use crate::{util::write_stream_to_file, ILIAS_URL};
use super::{ILIAS, URL};
static XOCT_REGEX: Lazy<Regex> =
Lazy::new(|| Regex::new(r#"(?m)<script>\s+xoctPaellaPlayer\.init\(([\s\S]+)\)\s+</script>"#).unwrap());
pub async fn download(path: &Path, relative_path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
if ilias.opt.no_videos {
return Ok(());
}
if fs::metadata(&path).await.is_ok() && !(ilias.opt.force || ilias.opt.check_videos) {
log!(2, "Skipping download, file exists already");
return Ok(());
}
let url = format!("{}{}", ILIAS_URL, url.url);
let data = ilias.download(&url);
let html = data.await?.text().await?;
log!(2, "{}", html);
let json: serde_json::Value = {
let mut json_capture = XOCT_REGEX.captures_iter(&html);
let json = &json_capture.next().context("xoct player json not found")?[1];
log!(2, "{}", json);
let json = json.split(",\n").next().context("invalid xoct player json")?;
serde_json::from_str(&json.trim())?
};
log!(2, "{}", json);
let streams = json
.get("streams")
.context("video streams not found")?
.as_array()
.context("video streams not an array")?;
if streams.len() == 1 {
let url = streams[0]
.pointer("/sources/mp4/0/src")
.context("video src not found")?
.as_str()
.context("video src not string")?;
download_to_path(&ilias, path, relative_path, url).await?;
} else {
if !ilias.opt.combine_videos {
fs::create_dir(path).await.context("failed to create video directory")?;
download_all(path, streams, ilias, relative_path).await?;
} else {
let dir = tempdir()?;
// construct ffmpeg command to combine all files
let mut arguments = vec![];
for file in download_all(dir.path(), streams, ilias, relative_path).await? {
arguments.push("-i".to_owned());
arguments.push(file.to_str().context("invalid UTF8")?.into());
}
arguments.push("-c".into());
arguments.push("copy".into());
for i in 0..(arguments.len() / 2) - 1 {
arguments.push("-map".into());
arguments.push(format!("{}", i));
}
arguments.push(path.to_str().context("invalid UTF8 in path")?.into());
let status = Command::new("ffmpeg")
.args(&arguments)
.stderr(Stdio::null())
.stdout(Stdio::null())
.spawn()
.context("failed to start ffmpeg")?
.wait()
.await
.context("failed to wait for ffmpeg")?;
if !status.success() {
error!(format!("ffmpeg failed to merge video files into {}", path.display()));
error!(format!("check this directory: {}", dir.into_path().display()));
error!(format!("ffmpeg command: {}", arguments.join(" ")));
}
};
}
Ok(())
}
async fn download_all(
path: &Path,
streams: &Vec<serde_json::Value>,
ilias: Arc<ILIAS>,
relative_path: &Path,
) -> Result<Vec<PathBuf>> {
let mut paths = Vec::new();
for (i, stream) in streams.into_iter().enumerate() {
let url = stream
.pointer("/sources/mp4/0/src")
.context("video src not found")?
.as_str()
.context("video src not string")?;
let new_path = path.join(format!("Stream{}.mp4", i + 1));
download_to_path(
&ilias,
&new_path,
&relative_path.join(format!("Stream{}.mp4", i + 1)),
url,
)
.await?;
paths.push(new_path);
}
Ok(paths)
}
async fn download_to_path(ilias: &ILIAS, path: &Path, relative_path: &Path, url: &str) -> Result<()> {
let meta = fs::metadata(&path).await;
if !ilias.opt.force && meta.is_ok() && ilias.opt.check_videos {
let head = ilias.head(url).await.context("HEAD request failed")?;
if let Some(len) = head.headers().get("content-length") {
if meta?.len() != len.to_str()?.parse::<u64>()? {
warning!(
relative_path.to_string_lossy(),
"was updated, consider moving the outdated file"
);
}
}
} else {
let resp = ilias.download(&url).await?;
log!(0, "Writing {}", relative_path.to_string_lossy());
write_stream_to_file(&path, resp.bytes_stream()).await?;
}
Ok(())
}

70
src/ilias/weblink.rs Normal file
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@ -0,0 +1,70 @@
use std::{path::Path, sync::Arc};
use anyhow::{Context, Result};
use once_cell::sync::Lazy;
use scraper::Selector;
use tokio::fs;
use crate::{
util::{create_dir, file_escape, write_file_data},
ILIAS_URL,
};
use super::{ILIAS, URL};
static LINKS: Lazy<Selector> = Lazy::new(|| Selector::parse("a").unwrap());
pub async fn download(path: &Path, relative_path: &Path, ilias: Arc<ILIAS>, url: &URL) -> Result<()> {
if !ilias.opt.force && fs::metadata(&path).await.is_ok() {
log!(2, "Skipping download, link exists already");
return Ok(());
}
let head_req_result = ilias.head(&url.url).await;
let url = match &head_req_result {
Err(e) => e.url().context("HEAD request failed")?.as_str(),
Ok(head) => head.url().as_str(),
};
if url.starts_with(ILIAS_URL) {
// is a link list
if fs::metadata(&path).await.is_err() {
create_dir(&path).await?;
log!(0, "Writing {}", relative_path.to_string_lossy());
}
let urls = {
let html = ilias.get_html(url).await?;
html.select(&LINKS)
.filter_map(|x| x.value().attr("href").map(|y| (y, x.text().collect::<String>())))
.map(|(x, y)| {
URL::from_href(x)
.map(|z| (z, y.trim().to_owned()))
.context("parsing weblink")
})
.collect::<Result<Vec<_>>>()
}?;
for (url, name) in urls {
if url.cmd.as_deref().unwrap_or("") != "callLink" {
continue;
}
let head = ilias
.head(url.url.as_str())
.await
.context("HEAD request to web link failed");
if let Some(err) = head.as_ref().err() {
warning!(err);
continue;
}
let head = head.unwrap();
let url = head.url().as_str();
write_file_data(path.join(file_escape(&name)), &mut url.as_bytes()).await?;
}
} else {
log!(0, "Writing {}", relative_path.to_string_lossy());
write_file_data(&path, &mut url.as_bytes())
.await
.context("failed to save weblink URL")?;
}
Ok(())
}

File diff suppressed because it is too large Load Diff

42
src/queue.rs Normal file
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@ -0,0 +1,42 @@
use futures::Future;
use futures_channel::mpsc::{UnboundedReceiver, UnboundedSender};
use once_cell::sync::{Lazy, OnceCell};
use tokio::{
sync::{Semaphore, SemaphorePermit},
task::{self, JoinHandle},
time,
};
/// Global job queue
static TASKS: OnceCell<UnboundedSender<JoinHandle<()>>> = OnceCell::new();
static TASKS_RUNNING: Lazy<Semaphore> = Lazy::new(|| Semaphore::new(0));
static REQUEST_TICKETS: Lazy<Semaphore> = Lazy::new(|| Semaphore::new(0));
pub async fn get_request_ticket() {
REQUEST_TICKETS.acquire().await.unwrap().forget();
}
pub async fn get_ticket() -> SemaphorePermit<'static> {
TASKS_RUNNING.acquire().await.unwrap()
}
pub fn spawn(e: impl Future<Output = ()> + Send + 'static) {
TASKS.get().unwrap().unbounded_send(task::spawn(e)).unwrap();
}
pub fn set_download_rate(rate: usize) {
task::spawn(async move {
let mut interval = time::interval(time::Duration::from_secs_f64(60.0 / rate as f64));
loop {
interval.tick().await;
REQUEST_TICKETS.add_permits(1);
}
});
}
pub fn set_parallel_jobs(jobs: usize) -> UnboundedReceiver<JoinHandle<()>> {
let (tx, rx) = futures_channel::mpsc::unbounded::<JoinHandle<()>>();
TASKS.get_or_init(|| tx.clone());
TASKS_RUNNING.add_permits(jobs);
rx
}

View File

@ -1,16 +1,43 @@
// SPDX-License-Identifier: GPL-3.0-or-later
use anyhow::Context; use anyhow::Context;
use bytes::Bytes;
use futures::TryStreamExt;
use tokio::fs::File as AsyncFile; use tokio::fs::File as AsyncFile;
use tokio::io::{AsyncRead, BufWriter}; use tokio::io::{AsyncRead, BufWriter};
use tokio_util::io::StreamReader;
use std::io;
use std::path::Path; use std::path::Path;
use super::Result; use crate::{Result, ILIAS_URL};
pub async fn write_file_data<R: ?Sized>(path: &Path, data: &mut R) -> Result<()> /// Prepends a doctype and a base URL to the HTML fragment.
where R: AsyncRead + Unpin { pub fn wrap_html(html_fragment: &str) -> String {
let file = AsyncFile::create(&path).await.context("failed to create file")?; format!("<!DOCTYPE html>\n<base href=\"{}\">{}", ILIAS_URL, html_fragment)
}
pub async fn write_stream_to_file(
path: &Path,
stream: impl futures::Stream<Item = Result<Bytes, reqwest::Error>> + Unpin,
) -> Result<()> {
let mut reader = StreamReader::new(stream.map_err(|x| io::Error::new(io::ErrorKind::Other, x)));
write_file_data(&path, &mut reader).await?;
Ok(())
}
/// Write all data to the specified path. Will overwrite previous file data.
pub async fn write_file_data<R: ?Sized>(path: impl AsRef<Path>, data: &mut R) -> Result<()>
where
R: AsyncRead + Unpin,
{
let file = AsyncFile::create(path.as_ref())
.await
.context("failed to create file")?;
let mut file = BufWriter::new(file); let mut file = BufWriter::new(file);
tokio::io::copy(data, &mut file).await.context("failed to write to file")?; tokio::io::copy(data, &mut file)
.await
.context("failed to write to file")?;
Ok(()) Ok(())
} }
@ -23,3 +50,12 @@ pub async fn create_dir(path: &Path) -> Result<()> {
} }
Ok(()) Ok(())
} }
#[cfg(not(target_os = "windows"))]
const INVALID: &[char] = &['/', '\\'];
#[cfg(target_os = "windows")]
const INVALID: &[char] = &['/', '\\', ':', '<', '>', '"', '|', '?', '*'];
pub fn file_escape(s: &str) -> String {
s.replace(INVALID, "-")
}