1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
extern crate regex;
extern crate select;
use irc::client::prelude::*;
use irc::error::IrcError;
use self::regex::Regex;
use self::select::document::Document;
use self::select::predicate::Name;
use plugin::*;
use utils;
lazy_static! {
static ref RE: Regex = Regex::new(r"(^|\s)(https?://\S+)").unwrap();
}
#[derive(PluginName, Debug)]
pub struct Url {
max_kib: usize,
}
impl Url {
/// If a file is larger than `max_kib` KiB the download is stopped
pub fn new(max_kib: usize) -> Url {
Url { max_kib: max_kib }
}
fn grep_url(&self, msg: &str) -> Option<String> {
match RE.captures(msg) {
Some(captures) => {
debug!("Url captures: {:?}", captures);
Some(captures.get(2).unwrap().as_str().to_string())
}
None => None,
}
}
fn url(&self, text: &str) -> Result<String, &str> {
let url = match self.grep_url(text) {
Some(url) => url,
None => return Err("No Url was found."),
};
match utils::download(self.max_kib, &url) {
Some(body) => {
let doc = Document::from(body.as_ref());
if let Some(title) = doc.find(Name("title")).next() {
let title = title.children().next().unwrap();
let title_text = title.as_text().unwrap().trim().replace("\n", "|");
debug!("Title: {:?}", title);
debug!("Text: {:?}", title_text);
Ok(title_text)
} else {
Err("No title was found.")
}
}
None => Err("Failed to download document."),
}
}
}
impl Plugin for Url {
fn execute(&self, _: &IrcClient, message: &Message) -> ExecutionStatus {
match message.command {
Command::PRIVMSG(_, ref msg) => if RE.is_match(msg) {
ExecutionStatus::RequiresThread
} else {
ExecutionStatus::Done
},
_ => ExecutionStatus::Done,
}
}
fn execute_threaded(&self, client: &IrcClient, message: &Message) -> Result<(), IrcError> {
match message.command {
Command::PRIVMSG(_, ref content) => match self.url(content) {
Ok(title) => client.send_privmsg(message.response_target().unwrap(), &title),
Err(_) => Ok(()),
},
_ => Ok(()),
}
}
fn command(&self, client: &IrcClient, command: PluginCommand) -> Result<(), IrcError> {
client.send_notice(
&command.source,
"This Plugin does not implement any commands.",
)
}
fn evaluate(&self, _: &IrcClient, command: PluginCommand) -> Result<String, String> {
self.url(&command.tokens[0]).map_err(String::from)
}
}
#[cfg(test)]
mod tests {}
|
