wowlab_tidy/languages/rust/rules/safety/
hardcoded_url.rs

1use crate::{Example, FileCtx, Violation, infra::parse, violation};
2
3#[rustfmt::skip]
4const EXAMPLES: &[Example] = &[
5    Example {
6        label: "hardcoded https URL",
7        code: r#"fn f() { let url = "https://api.example.com/v1"; }"#,
8        pass: false,
9    },
10    Example {
11        label: "hardcoded http URL",
12        code: r#"fn f() { let url = "http://localhost:3000"; }"#,
13        pass: false,
14    },
15    Example {
16        label: "no URL",
17        code: "fn f() { let x = 42; }",
18        pass: true,
19    },
20    Example {
21        label: "URL in doc comment",
22        code: "/// See https://docs.rs/foo for details.",
23        pass: true,
24    },
25    Example {
26        label: "URL in regular comment",
27        code: "// Reference: https://example.com/spec",
28        pass: true,
29    },
30];
31
32crate::line_rule!(
33    hardcoded_url,
34    "Flag hardcoded URLs in source code (should use config/env).",
35    "Hardcoded URLs break when environments change. Use configuration or environment variables for host-specific URLs.",
36    Medium,
37);
38
39fn check_hardcoded_url(ctx: &FileCtx<'_>) -> Vec<Violation> {
40    let mut out = Vec::new();
41
42    for (i, line) in ctx.lines.iter().enumerate() {
43        let trimmed = line.trim();
44
45        if parse::is_comment(trimmed) {
46            continue;
47        }
48
49        if let Some(idx) = parse::find_url(line) {
50            let Some(before) = line.get(..idx) else {
51                continue;
52            };
53            let has_open_quote = before.contains('"');
54
55            if has_open_quote {
56                out.push(violation(
57                    ctx.rel,
58                    i + 1,
59                    "hardcoded URL in source — use configuration or environment variable instead",
60                ));
61            }
62        }
63    }
64
65    out
66}
67
68crate::tidy_test!(check_hardcoded_url, {
69    crate::example_tests!(EXAMPLES, check_hardcoded_url);
70});
wowlab_tidy/languages/rust/rules/safety/hardcoded_url.rs

wowlab_tidy/languages/rust/rules/safety/
hardcoded_url.rs
