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1/*
2 * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
3 * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
4 * Copyright (C) 2009 Joseph Pecoraro
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1.  Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 * 2.  Redistributions in binary form must reproduce the above copyright
13 *     notice, this list of conditions and the following disclaimer in the
14 *     documentation and/or other materials provided with the distribution.
15 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
16 *     its contributors may be used to endorse or promote products derived
17 *     from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/**
32 * @param {string} url
33 * @return {?WebInspector.Resource}
34 */
35WebInspector.resourceForURL = function(url)
36{
37    return WebInspector.resourceTreeModel.resourceForURL(url);
38}
39
40/**
41 * @param {function(!WebInspector.Resource)} callback
42 */
43WebInspector.forAllResources = function(callback)
44{
45     WebInspector.resourceTreeModel.forAllResources(callback);
46}
47
48/**
49 * @param {string} url
50 * @return {string}
51 */
52WebInspector.displayNameForURL = function(url)
53{
54    if (!url)
55        return "";
56
57    var resource = WebInspector.resourceForURL(url);
58    if (resource)
59        return resource.displayName;
60
61    var uiSourceCode = WebInspector.workspace.uiSourceCodeForURL(url);
62    if (uiSourceCode)
63        return uiSourceCode.displayName();
64
65    if (!WebInspector.resourceTreeModel.inspectedPageURL())
66        return url.trimURL("");
67
68    var parsedURL = WebInspector.resourceTreeModel.inspectedPageURL().asParsedURL();
69    var lastPathComponent = parsedURL ? parsedURL.lastPathComponent : parsedURL;
70    var index = WebInspector.resourceTreeModel.inspectedPageURL().indexOf(lastPathComponent);
71    if (index !== -1 && index + lastPathComponent.length === WebInspector.resourceTreeModel.inspectedPageURL().length) {
72        var baseURL = WebInspector.resourceTreeModel.inspectedPageURL().substring(0, index);
73        if (url.startsWith(baseURL))
74            return url.substring(index);
75    }
76
77    if (!parsedURL)
78        return url;
79
80    var displayName = url.trimURL(parsedURL.host);
81    return displayName === "/" ? parsedURL.host + "/" : displayName;
82}
83
84/**
85 * @param {string} string
86 * @param {function(string,string,number=,number=):!Node} linkifier
87 * @return {!DocumentFragment}
88 */
89WebInspector.linkifyStringAsFragmentWithCustomLinkifier = function(string, linkifier)
90{
91    var container = document.createDocumentFragment();
92    var linkStringRegEx = /(?:[a-zA-Z][a-zA-Z0-9+.-]{2,}:\/\/|data:|www\.)[\w$\-_+*'=\|\/\\(){}[\]^%@&#~,:;.!?]{2,}[\w$\-_+*=\|\/\\({^%@&#~]/;
93    var lineColumnRegEx = /:(\d+)(:(\d+))?$/;
94
95    while (string) {
96        var linkString = linkStringRegEx.exec(string);
97        if (!linkString)
98            break;
99
100        linkString = linkString[0];
101        var linkIndex = string.indexOf(linkString);
102        var nonLink = string.substring(0, linkIndex);
103        container.appendChild(document.createTextNode(nonLink));
104
105        var title = linkString;
106        var realURL = (linkString.startsWith("www.") ? "http://" + linkString : linkString);
107        var lineColumnMatch = lineColumnRegEx.exec(realURL);
108        var lineNumber;
109        var columnNumber;
110        if (lineColumnMatch) {
111            realURL = realURL.substring(0, realURL.length - lineColumnMatch[0].length);
112            lineNumber = parseInt(lineColumnMatch[1], 10);
113            // Immediately convert line and column to 0-based numbers.
114            lineNumber = isNaN(lineNumber) ? undefined : lineNumber - 1;
115            if (typeof(lineColumnMatch[3]) === "string") {
116                columnNumber = parseInt(lineColumnMatch[3], 10);
117                columnNumber = isNaN(columnNumber) ? undefined : columnNumber - 1;
118            }
119        }
120
121        var linkNode = linkifier(title, realURL, lineNumber, columnNumber);
122        container.appendChild(linkNode);
123        string = string.substring(linkIndex + linkString.length, string.length);
124    }
125
126    if (string)
127        container.appendChild(document.createTextNode(string));
128
129    return container;
130}
131
132/**
133 * @param {string} string
134 * @return {!DocumentFragment}
135 */
136WebInspector.linkifyStringAsFragment = function(string)
137{
138    /**
139     * @param {string} title
140     * @param {string} url
141     * @param {number=} lineNumber
142     * @param {number=} columnNumber
143     * @return {!Node}
144     */
145    function linkifier(title, url, lineNumber, columnNumber)
146    {
147        var isExternal = !WebInspector.resourceForURL(url) && !WebInspector.workspace.uiSourceCodeForURL(url);
148        var urlNode = WebInspector.linkifyURLAsNode(url, title, undefined, isExternal);
149        if (typeof lineNumber !== "undefined") {
150            urlNode.lineNumber = lineNumber;
151            if (typeof columnNumber !== "undefined")
152                urlNode.columnNumber = columnNumber;
153        }
154
155        return urlNode;
156    }
157
158    return WebInspector.linkifyStringAsFragmentWithCustomLinkifier(string, linkifier);
159}
160
161/**
162 * @param {string} url
163 * @param {string=} linkText
164 * @param {string=} classes
165 * @param {boolean=} isExternal
166 * @param {string=} tooltipText
167 * @return {!Element}
168 */
169WebInspector.linkifyURLAsNode = function(url, linkText, classes, isExternal, tooltipText)
170{
171    if (!linkText)
172        linkText = url;
173    classes = (classes ? classes + " " : "");
174    classes += isExternal ? "webkit-html-external-link" : "webkit-html-resource-link";
175
176    var a = document.createElement("a");
177    var href = sanitizeHref(url);
178    if (href !== null)
179        a.href = href;
180    a.className = classes;
181    if (typeof tooltipText === "undefined")
182        a.title = url;
183    else if (typeof tooltipText !== "string" || tooltipText.length)
184        a.title = tooltipText;
185    a.textContent = linkText.trimMiddle(WebInspector.Linkifier.MaxLengthForDisplayedURLs);
186    if (isExternal)
187        a.setAttribute("target", "_blank");
188
189    return a;
190}
191
192/**
193 * @param {string} url
194 * @param {number=} lineNumber
195 * @return {string}
196 */
197WebInspector.formatLinkText = function(url, lineNumber)
198{
199    var text = url ? WebInspector.displayNameForURL(url) : WebInspector.UIString("(program)");
200    if (typeof lineNumber === "number")
201        text += ":" + (lineNumber + 1);
202    return text;
203}
204
205/**
206 * @param {string} url
207 * @param {number=} lineNumber
208 * @param {string=} classes
209 * @param {string=} tooltipText
210 * @return {!Element}
211 */
212WebInspector.linkifyResourceAsNode = function(url, lineNumber, classes, tooltipText)
213{
214    var linkText = WebInspector.formatLinkText(url, lineNumber);
215    var anchor = WebInspector.linkifyURLAsNode(url, linkText, classes, false, tooltipText);
216    anchor.lineNumber = lineNumber;
217    return anchor;
218}
219
220/**
221 * @param {!WebInspector.NetworkRequest} request
222 * @return {!Element}
223 */
224WebInspector.linkifyRequestAsNode = function(request)
225{
226    var anchor = WebInspector.linkifyURLAsNode(request.url);
227    anchor.requestId = request.requestId;
228    return anchor;
229}
230
231/**
232 * @param {?string} content
233 * @param {string} mimeType
234 * @param {boolean} contentEncoded
235 * @return {?string}
236 */
237WebInspector.contentAsDataURL = function(content, mimeType, contentEncoded)
238{
239    const maxDataUrlSize = 1024 * 1024;
240    if (content === null || content.length > maxDataUrlSize)
241        return null;
242
243    return "data:" + mimeType + (contentEncoded ? ";base64," : ",") + content;
244}
245