1 package net.pterodactylus.sone.template
3 import net.pterodactylus.sone.core.Core
4 import net.pterodactylus.sone.text.FreemailPart
5 import net.pterodactylus.sone.text.FreenetLinkPart
6 import net.pterodactylus.sone.text.LinkPart
7 import net.pterodactylus.sone.text.Part
8 import net.pterodactylus.sone.text.PlainTextPart
9 import net.pterodactylus.sone.text.PostPart
10 import net.pterodactylus.sone.text.SonePart
11 import net.pterodactylus.sone.text.SoneTextParser
12 import net.pterodactylus.sone.text.SoneTextParserContext
13 import net.pterodactylus.sone.utils.asTemplate
14 import net.pterodactylus.util.template.Filter
15 import net.pterodactylus.util.template.TemplateContext
16 import net.pterodactylus.util.template.TemplateContextFactory
17 import java.io.StringWriter
19 import java.net.URLEncoder
22 * Renders a number of pre-parsed [Part] into a [String].
24 class RenderFilter(private val core: Core, private val templateContextFactory: TemplateContextFactory) : Filter {
27 private val plainTextTemplate = "<%text|html>".asTemplate()
28 private val linkTemplate = "<a class=\"<%cssClass|html>\" href=\"<%link|html>\" title=\"<%title|html>\"><%text|html></a>".asTemplate()
31 override fun format(templateContext: TemplateContext?, data: Any?, parameters: MutableMap<String, Any?>?): Any? {
32 @Suppress("UNCHECKED_CAST")
33 val parts = data as? Iterable<Part> ?: return null
34 val parsedTextWriter = StringWriter()
35 render(parsedTextWriter, parts)
36 return parsedTextWriter.toString()
39 private fun render(writer: Writer, parts: Iterable<Part>) {
40 parts.forEach { render(writer, it) }
43 private fun render(writer: Writer, part: Part) {
44 @Suppress("UNCHECKED_CAST")
46 is PlainTextPart -> render(writer, part)
47 is FreenetLinkPart -> render(writer, part)
48 is LinkPart -> render(writer, part)
49 is SonePart -> render(writer, part)
50 is PostPart -> render(writer, part)
51 is FreemailPart -> render(writer, part)
55 private fun render(writer: Writer, plainTextPart: PlainTextPart) {
56 val templateContext = templateContextFactory.createTemplateContext()
57 templateContext.set("text", plainTextPart.text)
58 plainTextTemplate.render(templateContext, writer)
61 private fun render(writer: Writer, freenetLinkPart: FreenetLinkPart) {
62 renderLink(writer, "/${freenetLinkPart.link}", freenetLinkPart.text, freenetLinkPart.title, if (freenetLinkPart.trusted) "freenet-trusted" else "freenet")
65 private fun render(writer: Writer, linkPart: LinkPart) {
66 renderLink(writer, "/external-link/?_CHECKED_HTTP_=${linkPart.link.urlEncode()}", linkPart.text, linkPart.title, "internet")
69 private fun String.urlEncode(): String = URLEncoder.encode(this, "UTF-8")
71 private fun render(writer: Writer, sonePart: SonePart) {
72 if (sonePart.sone.name != null) {
73 renderLink(writer, "viewSone.html?sone=${sonePart.sone.id}", SoneAccessor.getNiceName(sonePart.sone), SoneAccessor.getNiceName(sonePart.sone), "in-sone")
75 renderLink(writer, "/WebOfTrust/ShowIdentity?id=${sonePart.sone.id}", sonePart.sone.id, sonePart.sone.id, "in-sone")
79 private fun render(writer: Writer, postPart: PostPart) {
80 val parser = SoneTextParser(core, core)
81 val parserContext = SoneTextParserContext(postPart.post.sone)
82 val parts = parser.parse(postPart.post.text, parserContext)
83 val excerpt = StringBuilder()
85 excerpt.append(part.text)
86 if (excerpt.length > 20) {
87 val lastSpace = excerpt.lastIndexOf(" ", 20)
89 excerpt.setLength(lastSpace)
97 renderLink(writer, "viewPost.html?post=${postPart.post.id}", excerpt.toString(), SoneAccessor.getNiceName(postPart.post.sone), "in-sone")
100 private fun render(writer: Writer, freemailPart: FreemailPart) {
101 val sone = core.getSone(freemailPart.identityId)
102 val soneName = sone?.let(SoneAccessor::getNiceName) ?: freemailPart.identityId
104 "/Freemail/NewMessage?to=${freemailPart.identityId}",
105 "${freemailPart.emailLocalPart}@$soneName.freemail",
106 "$soneName\n${freemailPart.emailLocalPart}@${freemailPart.freemailId}.freemail",
110 private fun renderLink(writer: Writer, link: String, text: String, title: String, cssClass: String) {
111 val templateContext = templateContextFactory.createTemplateContext()
112 templateContext["cssClass"] = cssClass
113 templateContext["link"] = link
114 templateContext["text"] = text
115 templateContext["title"] = title
116 linkTemplate.render(templateContext, writer)