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Hideout
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feat: クエリパラメータでSSRを使用するかを切り替えれるように 

SSRを使用するかの設定はセッショに保存され、次のアクセスから設定する必要はなくなる
サーバーはとりあえずSPA用のindexページを送信し、noscriptを検知してクエリパラメータ付きのページに遷移する
This commit is contained in:
usbharu 2024-09-04 18:55:10 +09:00
parent fec59ab622
commit 4f9c431d9b
Signed by: usbharu
GPG Key ID: 6556747BF94EEBC8
3 changed files with 77 additions and 0 deletions
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13
hideout-core/src/main/kotlin/dev/usbharu/hideout/core/config/WebMvcConfig.kt Normal file
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package dev.usbharu.hideout.core.config
import dev.usbharu.hideout.core.infrastructure.springframework.SPAInterceptor
import org.springframework.context.annotation.Configuration
import org.springframework.web.servlet.config.annotation.InterceptorRegistry
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer
@Configuration
class WebMvcConfig(private val spaInterceptor: SPAInterceptor) : WebMvcConfigurer {
override fun addInterceptors(registry: InterceptorRegistry) {
registry.addInterceptor(spaInterceptor)
}
}

46
hideout-core/src/main/kotlin/dev/usbharu/hideout/core/infrastructure/springframework/SPAInterceptor.kt Normal file
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package dev.usbharu.hideout.core.infrastructure.springframework
import jakarta.servlet.http.HttpServletRequest
import jakarta.servlet.http.HttpServletResponse
import org.springframework.stereotype.Component
import org.springframework.web.servlet.HandlerInterceptor
import org.springframework.web.servlet.ModelAndView
import org.springframework.web.servlet.support.ServletUriComponentsBuilder
@Component
class SPAInterceptor : HandlerInterceptor {
override fun preHandle(request: HttpServletRequest, response: HttpServletResponse, handler: Any): Boolean {
if (request.getParameter("s") == "f") {
request.session.setAttribute("s", "f")
} else if (request.getParameter("s") == "t") {
request.session.setAttribute("s", "t")
}
return true
}
override fun postHandle(
request: HttpServletRequest,
response: HttpServletResponse,
handler: Any,
modelAndView: ModelAndView?
) {
if (request.session.getAttribute("s") == "f") {
return
}
val title = modelAndView?.modelMap?.getOrDefault("title", "")
val url = modelAndView?.modelMap?.getOrDefault(
"url",
ServletUriComponentsBuilder.fromCurrentRequestUri().toUriString() + '?' + request.queryString
)
val description = modelAndView?.modelMap?.getOrDefault("description", "")
val image = modelAndView?.modelMap?.get("image")
modelAndView?.clear()
modelAndView?.addObject("nsUrl", request.requestURI + "?s=f" + request.queryString?.let { "&$it" }.orEmpty())
modelAndView?.addAllObjects(mapOf("title" to title, "url" to url, "description" to description))
image?.let { modelAndView?.addObject("image", it) }
modelAndView?.viewName = "index"
}
}

18
hideout-core/src/main/resources/templates/index.html Normal file
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<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head prefix="og: http://ogp.me/ns#">
<meta charset="UTF-8">
<title th:title="${title}">Title</title>
<meta property="og:url" th:content="${url}">
<meta property="og:title" th:content="${title}">
<meta property="og:description" th:content="${description}">
<th:block th:if="${image != null}">
<meta property="og:image" th:content="${image}">
</th:block>
</head>
<body>
<noscript>
<a th:href="${nsUrl}">No Script</a>
</noscript>
</body>
</html>