2020-07-29 22:46:18 -04:00
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use aho_corasick::{AhoCorasick, AhoCorasickBuilder};
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2020-07-27 04:08:53 -04:00
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use lazy_static::lazy_static;
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2021-04-14 10:18:16 -04:00
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2020-07-26 10:27:52 -04:00
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use crate::cfg::Cfg;
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2020-01-10 02:30:49 -05:00
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use crate::err::ProcessingResult;
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2022-06-21 11:36:27 -04:00
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use crate::proc::checkpoint::WriteCheckpoint;
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2020-01-25 02:04:02 -05:00
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use crate::proc::MatchAction::*;
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use crate::proc::MatchMode::*;
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2020-07-21 03:59:56 -04:00
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use crate::proc::Processor;
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2020-07-21 03:57:39 -04:00
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2020-07-26 10:27:52 -04:00
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lazy_static! {
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2021-08-08 03:58:10 -04:00
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static ref SCRIPT_END: AhoCorasick = AhoCorasickBuilder::new()
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.ascii_case_insensitive(true)
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.build(&["</script"]);
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2020-07-26 10:27:52 -04:00
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}
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2022-09-27 22:51:44 -04:00
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// Provide `None` to `mode` if not JS.
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2020-07-27 04:08:53 -04:00
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#[inline(always)]
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2022-09-27 22:51:44 -04:00
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pub fn process_script(
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proc: &mut Processor,
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cfg: &Cfg,
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mode: Option<minify_js::TopLevelMode>,
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) -> ProcessingResult<()> {
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2021-08-08 03:58:10 -04:00
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let start = WriteCheckpoint::new(proc);
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2020-07-26 10:27:52 -04:00
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proc.require_not_at_end()?;
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2022-06-21 11:36:27 -04:00
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let src = proc.m(WhileNotSeq(&SCRIPT_END), Discard);
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2020-07-26 10:27:52 -04:00
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// `process_tag` will require closing tag.
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2022-09-27 22:51:44 -04:00
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if cfg.minify_js && mode.is_some() {
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2022-06-21 11:36:27 -04:00
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// TODO Write to `out` directly, but only if we can guarantee that the length will never exceed the input.
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let mut output = Vec::new();
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2022-09-27 22:51:44 -04:00
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let result = minify_js::minify(mode.unwrap(), proc[src].to_vec(), &mut output);
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2022-06-21 11:36:27 -04:00
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// TODO Collect error as warning.
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if !result.is_err() && output.len() < src.len() {
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proc.write_slice(output.as_slice());
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} else {
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proc.write_range(src);
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2020-07-10 11:15:56 -04:00
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};
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2022-06-21 11:36:27 -04:00
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} else {
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proc.write_range(src);
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2020-07-10 11:15:56 -04:00
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};
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2020-07-26 10:27:52 -04:00
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2020-01-10 02:30:49 -05:00
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Ok(())
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}
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