web2md 0.1.0

A tool that fetches web pages and returns them as Markdown for MCP token efficiency
Documentation 
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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246

use web2md::{Browser, BrowserOptions, McpRequest, McpServer, PageToMarkdown};
use std::time::Duration;

#[tokio::test]
async fn fetch_and_convert_to_markdown() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/article")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body(
            "<html><head><title>My Article</title></head>
             <body><h1>Heading</h1><p>First paragraph.</p><p>Second paragraph.</p></body>
             </html>",
        )
        .create_async()
        .await;

    let browser = Browser::new(BrowserOptions::default()).unwrap();
    let html = browser.fetch(&format!("{}/article", server.url())).await.unwrap();
    let md = PageToMarkdown::convert(&html, false, false, false).unwrap();

    assert!(md.contains("Heading"));
    assert!(md.contains("First paragraph."));
    assert!(md.contains("Second paragraph."));
    mock.assert_async().await;
}

#[tokio::test]
async fn fetch_404_propagates_error() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/missing")
        .with_status(404)
        .create_async()
        .await;

    let browser = Browser::new(BrowserOptions::default()).unwrap();
    let result = browser.fetch(&format!("{}/missing", server.url())).await;

    assert!(result.is_err());
    let err = result.unwrap_err().to_string();
    assert!(err.contains("404"));
    mock.assert_async().await;
}

#[tokio::test]
async fn mcp_server_end_to_end() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/doc")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body(
            "<html><head><title>Integration Test</title></head>
             <body><h1>Title</h1><p>Body text.</p></body>
             </html>",
        )
        .create_async()
        .await;

    let mcp = McpServer::new().unwrap();
    let resp = mcp
        .handle(McpRequest {
            url: format!("{}/doc", server.url()),
            include_images: false,
            keep_header: false,
            main_content: false,
            max_length: None,
        })
        .await
        .unwrap();

    assert_eq!(resp.title, Some("Integration Test".to_string()));
    assert!(resp.markdown.contains("Title"));
    assert!(resp.markdown.contains("Body text."));
    mock.assert_async().await;
}

#[tokio::test]
async fn mcp_server_max_length_truncation() {
    let mut server = mockito::Server::new_async().await;
    let body = "<html><body><p>".to_string()
        + &"a ".repeat(500)
        + "</p></body></html>";
    let mock = server
        .mock("GET", "/long")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body(body)
        .create_async()
        .await;

    let mcp = McpServer::new().unwrap();
    let resp = mcp
        .handle(McpRequest {
            url: format!("{}/long", server.url()),
            include_images: false,
            keep_header: false,
            main_content: false,
            max_length: Some(100),
        })
        .await
        .unwrap();

    assert!(resp.markdown.contains("[truncated]"));
    assert!(resp.markdown.len() <= 120); // rough bound: 100 chars + "\n\n[truncated]"
    mock.assert_async().await;
}

#[tokio::test]
async fn custom_timeout_is_applied() {
    let mut opts = BrowserOptions::default();
    opts.timeout = Duration::from_secs(5);

    let browser = Browser::new(opts).unwrap();
    assert_eq!(browser.options().timeout, Duration::from_secs(5));
}

#[tokio::test]
async fn strips_scripts_and_styles_in_integration() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/styled")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body(
            "<html><head><style>.red{color:red}</style></head>
             <body>
                <script>alert('xss')</script>
                <p>Visible content</p>
             </body></html>",
        )
        .create_async()
        .await;

    let browser = Browser::new(BrowserOptions::default()).unwrap();
    let html = browser.fetch(&format!("{}/styled", server.url())).await.unwrap();
    let md = PageToMarkdown::convert(&html, false, false, false).unwrap();

    assert!(!md.contains("alert"));
    assert!(!md.contains("color:red"));
    assert!(md.contains("Visible content"));
    mock.assert_async().await;
}

#[tokio::test]
async fn strips_noise_tags_in_integration() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/noisy")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body(
            r#"<html>
             <head><!-- tracking comment --></head>
             <body>
                <nav><a href="/">Home</a></nav>
                <p>Real content here</p>
                <aside>Related links</aside>
                <noscript>Enable JS</noscript>
                <footer>Copyright 2025</footer>
             </body></html>"#,
        )
        .create_async()
        .await;

    let browser = Browser::new(BrowserOptions::default()).unwrap();
    let html = browser.fetch(&format!("{}/noisy", server.url())).await.unwrap();
    let md = PageToMarkdown::convert(&html, false, false, false).unwrap();

    assert!(md.contains("Real content here"));
    assert!(!md.contains("Home"));
    assert!(!md.contains("Related links"));
    assert!(!md.contains("Enable JS"));
    assert!(!md.contains("Copyright"));
    assert!(!md.contains("tracking"));
    mock.assert_async().await;
}

#[tokio::test]
async fn cli_format_html_emits_raw_html() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/raw")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body("<html><body><h1>Title</h1><p>Content</p></body></html>")
        .create_async()
        .await;

    let browser = Browser::new(BrowserOptions::default()).unwrap();
    let html = browser.fetch(&format!("{}/raw", server.url())).await.unwrap();

    assert!(html.contains("<html>") || html.contains("<body>") || html.contains("<h1>"),
        "expected raw HTML tags in output, got: {}", html);
    mock.assert_async().await;
}

#[tokio::test]
async fn cli_render_adds_ansi_codes() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/render")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body("<html><body><h1>Title</h1><p>Content with <a href=\"/link\">link</a>.</p></body></html>")
        .create_async()
        .await;

    let browser = Browser::new(BrowserOptions::default()).unwrap();
    let html = browser.fetch(&format!("{}/render", server.url())).await.unwrap();
    let md = PageToMarkdown::convert(&html, false, false, false).unwrap();

    // Simulate what --render does: the render_markdown_ansi function is in main.rs
    // and not exposed via the library, so we verify the markdown contains content
    // that would produce ANSI output. The actual ANSI rendering is tested in main.rs unit tests.
    assert!(md.contains("Title"), "expected title in markdown, got: {}", md);
    assert!(md.contains("Content"), "expected content in markdown, got: {}", md);
    mock.assert_async().await;
}

#[tokio::test]
async fn readability_main_content_extracts_from_div_layout() {
    let mut server = mockito::Server::new_async().await;
    let mock = server
        .mock("GET", "/layout")
        .with_status(200)
        .with_header("content-type", "text/html")
        .with_body(
            r#"<html><body>
            <div><a href="/">Home</a><a href="/about">About</a><a href="/contact">Contact</a></div>
            <div><h2>Real Article</h2><p>This is the main article content with enough text to be extracted by the readability scoring algorithm. It contains substantial paragraphs that should score higher than the navigation div above.</p></div>
            </body></html>"#,
        )
        .create_async()
        .await;

    let browser = Browser::new(BrowserOptions::default()).unwrap();
    let html = browser.fetch(&format!("{}/layout", server.url())).await.unwrap();
    let md = PageToMarkdown::convert(&html, false, false, true).unwrap();

    assert!(md.contains("main article content"));
    assert!(!md.contains("Contact"));
    mock.assert_async().await;
}