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Sistema de arquivos interplanetário - Blog simples do IPFS usando XSLT

Há um problema: um site no IPFS não tem a capacidade de usar scripts do lado do servidor para formar uma página. Se você usar a geração de páginas antes de carregar, em seguida, adicionar um novo item de menu a cada página, alteraremos o hash dessas páginas. Portanto, todo o conjunto de páginas deve ser feito pelo navegador.


Geralmente forma o conteúdo das páginas usando JavaScript. Esta é uma tecnologia familiar, mas tem suas desvantagens.


Vou usar o XSLT. Essa é uma tecnologia de modelo antiga que há muito tempo é incorporada aos navegadores, mas poucos a utilizam. Talvez porque os modelos façam você escrever muito texto devido à confusão com os namespaces e muitos erros sem uma explicação clara. Além disso, apesar do fato de já existir o XSLT 3.0 nos navegadores, apenas o XSLT 1.0 ainda está disponível.


XSLT funciona assim:


  1. Um usuário abre um documento XML em um navegador.
  2. No cabeçalho XML, o documento contém um link para o modelo XSLT.
    <?xml-stylesheet href="xslt/.xslt" type="text/xsl" ?>
  3. Um modelo em um navegador baseado em um documento XML e outros dados forma um documento xHTML.
  4. O navegador exibe o documento xHTML resultante.

Ao vincular várias páginas a um modelo, você pode alterar o documento xHTML exibido sem alterar os documentos XML. Portanto, ao alterar o design, o hash dos documentos XML não será alterado, o que significa que suas cópias antigas serão fontes de novas no IPFS.


. XML .


imagem



XML . XML HTML:


  1. .
    <br />.
  2. . .
    <>
    < />
    <- />
    <-- />
</>
  3. .
    <>
     
</>

.xml


.


XML - :
: ' .xml'


<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet href="xslt/.xslt" type="text/xsl" ?>
<>
    <></>
    <>
        <></>
    </>
</>
<!--         -->

. . meta description. .


xHTML ( HTML ) .


:


: 'Lorem Ipsum.xml'
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet href="xslt/.xslt" type="text/xsl" ?>
<>
    <>Lorem Ipsum</>
    <>
<h1>Lorem ipsum dolor sit amet</h1>

<>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras feugiat orci non orci tincidunt molestie. Donec eget porta metus. Aenean malesuada nunc lacus, a sollicitudin neque fermentum eu. <b style="color: green">Vestibulum egestas viverra urna</b>, sit amet mollis ipsum commodo imperdiet. Quisque sit amet est eu nibh commodo pharetra.</> Donec fermentum nisi nec lorem auctor imperdiet. Morbi ultricies at magna ullamcorper malesuada. In eget arcu dapibus, vehicula nunc vel, convallis erat. Cras accumsan lacus vel tellus gravida, eu gravida turpis congue. In ultrices pellentesque odio at hendrerit.

<h1>Cras nec lorem facilisis</h1>

Cras nec lorem facilisis justo porttitor scelerisque id id ipsum. Duis mattis, sem eu sollicitudin pharetra, diam augue ullamcorper nisl, id dictum turpis ex in nisl. Aliquam venenatis egestas urna eget porttitor. Suspendisse potenti. Curabitur fermentum fermentum nulla, a lobortis ipsum laoreet eget. Duis finibus lacus id tempor elementum. <i>Interdum et malesuada fames ac ante ipsum primis in faucibus</i>. Curabitur tempus eget turpis ut tincidunt. In quis massa et risus tempor luctus quis eu enim. Duis finibus sem sit amet elit scelerisque molestie. Suspendisse laoreet, leo ut accumsan dapibus, nisi tellus dignissim lorem, eu auctor tellus diam vel nisi. Donec sem tortor, suscipit a leo maximus, aliquet dapibus nisl. Integer sodales, dui ut vulputate pharetra, ipsum neque tempor ipsum, sed porta tortor quam a nisl.

Sed consequat purus sed porttitor pulvinar. Mauris sollicitudin non sem a malesuada. Vestibulum non velit finibus, elementum purus nec, aliquam lacus. Etiam leo enim, venenatis id luctus ut, ornare sit amet ex. Nunc vel fringilla ante. Cras lobortis scelerisque pulvinar. Ut lectus augue, viverra quis molestie eu, maximus nec leo. <u>Sed facilisis odio ut malesuada mollis</u>. Pellentesque enim lacus, luctus nec velit quis, scelerisque tincidunt magna. Proin laoreet, erat eget porttitor bibendum, odio augue suscipit purus, id commodo magna nibh sed est. Ut dignissim aliquet sem, id suscipit sapien mollis volutpat. Vivamus ac fringilla est, at sagittis diam.
    </>
</>

.xhtml


xHTML XSLT . . XSLT .


xHTML XML.


: 'xhtml/.xhtml'


<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <!--   <>     title    -->
        <title class="">   XML</title>
        <meta  class=""/>
        <!--       HTML -->
        <style>
            /*   xHTML    */

            .{
                white-space: pre-wrap;
            }

            /*       */

              . h1, . h2
            , . h3, . h4
            , . h5, . h6 {
                display: inline;
            }
        </style>
    </head>
    <body>
        <!--           -->
        <ul   class="" />
        <h1   class="" />
        <span class=""> <b style="color: red"><![CDATA[<></>]]></b>   .  .</span>
    </body>
</html>

.xslt


(XML xHTML) XSLT.


'.xhtml' XML. XML xHTML.


: 'xslt/.xslt'


<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
  version="1.0"
  xmlns="http://www.w3.org/1999/xhtml"
  xmlns:xhtml="http://www.w3.org/1999/xhtml"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

    <!--
                '.xslt'
              
        Chrome     URL   URL
    -->
    <xsl:include href="%D0%BD%D0%B0%D0%B2%D0%B8%D0%B3%D0%B0%D1%86%D0%B8%D1%8F.xslt" />

    <!--      xHTML     XML -->
    <xsl:output method="xml" encoding="UTF-8"/>

    <!--        -->
    <xsl:variable name="" select="" />

    <!--     '.xhtml' -->
    <xsl:template match="/">
        <!-- mode            -->
        <xsl:apply-templates mode="xhtml" select="document('../xhtml/%D0%B7%D0%B0%D0%BF%D0%B8%D1%81%D1%8C.xhtml')" />
    </xsl:template>

    <!--        -->
    <xsl:template mode="xhtml" match="node()|@*">
        <xsl:copy>
            <xsl:apply-templates mode="xhtml" select="node()|@*"/>
        </xsl:copy>
    </xsl:template>

    <!--         '.xhtml' -->

    <!--   match    Firefox -->

    <!--    ''     '' -->
    <xsl:template mode="xhtml" match="*[contains(@class, '')]">
        <xsl:copy>
            <xsl:copy-of select="@*"/>
            <xsl:apply-templates mode="xml" select="$////node()" />
        </xsl:copy>
    </xsl:template>

    <!--   meta    '' -->
    <xsl:template mode="xhtml" match="xhtml:meta[contains(@class, '')]">
        <meta name="description" content="{$///}" />
    </xsl:template>

    <!--       -->
    <xsl:template mode="xhtml" match="*[contains(@class, '')]">
        <!--       '.xsl' -->
        <xsl:call-template name="" />
    </xsl:template>

    <!--    ''     '' -->
    <xsl:template mode="xhtml" match="*[contains(@class, '')]">
        <xsl:copy>
            <xsl:copy-of select="@*"/>
            <xsl:value-of select="$/" />
        </xsl:copy>
    </xsl:template>

    <!--    ''     '' -->
    <xsl:template mode="xhtml" match="*[contains(@class, '')]">
        <xsl:copy>
            <xsl:copy-of select="@*"/>
            <xsl:apply-templates mode="xml" select="$//node()" />
        </xsl:copy>
    </xsl:template>

    <!-- 
              xml 

              
        (   svg )  
     -->
    <xsl:template mode="xml" match="*[namespace-uri()]|@*">
        <xsl:copy>
            <xsl:apply-templates mode="xml" select="node()|@*" />
        </xsl:copy>
    </xsl:template>

    <!--       -->
    <xsl:template mode="xml" match="*">
        <!--
                 .    
                 
        -->
        <xsl:element name="{name()}">
            <xsl:apply-templates mode="xml" select="node()|@*" />
        </xsl:element>
    </xsl:template>

    <!--    ''    -->
    <xsl:template mode="xml" match="">
        <xsl:apply-templates mode="xml" select="node()|@*" />
    </xsl:template>

    <!--      xHTML  --> 
    <xsl:template mode="xml" match="h1|h2|h3|h4|h5">
        <!-- 
            h1       '' 
               xHTML  
        -->
        <xsl:element name="h{substring(name(), 2, 1) + 1}">
            <!--          id     -->
            <xsl:attribute name="id">
                <xsl:value-of select="." />
            </xsl:attribute>
            <xsl:apply-templates mode="xml" select="node()|@*" />
        </xsl:element>
    </xsl:template>

</xsl:stylesheet>


. .


.xml


XML :


: '.xml'


<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet href="xslt/.xslt" type="text/xsl" ?>
<>
    <> </>
</>
<!--         -->

'' xml .


:


<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet href="xslt/.xslt" type="text/xsl" ?>
<>
    <>Lorem Ipsum 1</>
    <>Lorem Ipsum 2</>
</>


'.xml' xHTML .


: 'xslt/.xslt'


<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
  version="1.0"
  xmlns="http://www.w3.org/1999/xhtml"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

    <!--      '.xsl' -->
    <xsl:template name="">
        <ul>
            <!--   -->
            <xsl:copy-of select="@*" />

            <!--     '.xml'   -->
            <xsl:apply-templates mode="" select="document('../%D0%B6%D1%83%D1%80%D0%BD%D0%B0%D0%BB.xml')//" />
        </ul>
    </xsl:template>

    <!--       -->
    <xsl:template mode="" match="">
        <li>
            <a href="{text()}.xml">
                <xsl:value-of select="text()" />
            </a>
        </li>
    </xsl:template>

</xsl:stylesheet>

.



.


index.html


IPFS index.html. XML .


'.xml'.


: 'index.html'


<?xml version="1.0" encoding="UTF-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title></title>
        <!--     '.xml' -->
        <!-- Firefox      url   -->
        <meta http-equiv="refresh" content="0; url=%D0%B6%D1%83%D1%80%D0%BD%D0%B0%D0%BB.xml" />
    </head>
    <body>
        <!--        -->
         :
        "<a class="" href=".xml"></a>"
    </body>
</html>

HTML . XML HTML . .


.xslt


'.xml' '.xslt'. '.xml' 'index.html' .


: 'xslt/.xslt'


<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
  version="1.0"
  xmlns="http://www.w3.org/1999/xhtml"
  xmlns:xhtml="http://www.w3.org/1999/xhtml"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

    <xsl:output method="xml" encoding="UTF-8"/>

    <xsl:variable name="" select="//text()" />

    <xsl:template match="/">
        <!--       -->
        <xsl:apply-templates mode="html" select="document('../index.html')" />
    </xsl:template>

    <!--     -->
    <xsl:template mode="html" match="node()|@*">
        <xsl:copy>
            <xsl:apply-templates mode="html" select="node()|@*" />
        </xsl:copy>
    </xsl:template>

    <!--    -->

    <!--     -->
    <xsl:template mode="html" match="xhtml:meta[@http-equiv='refresh']">
        <!--
             
             1.   URL
                      URL
        -->
        <base href="{$}.xml" />

        <!-- 2.   -->
        <meta http-equiv="refresh" content="0; url=#" />
    </xsl:template>

    <!--         -->
    <xsl:template mode="html" match="xhtml:a[@class='']">
        <a href="" class="{@class}">
            <xsl:value-of select="$" />
        </a>
    </xsl:template>

</xsl:stylesheet>

'.xslt' .



  1. '.xml' :


    <?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet href="xslt/.xslt" type="text/xsl" ?>
<>
    <>  </>
</>

  2. ' .xml' ' .xml'


  3. :


    <?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet href="xslt/.xslt" type="text/xsl" ?>
<>
    <>  </>
    <>
   .
    </>
</>


.



IPFS .


Firefox


  2. about:config security.fileuri.strict_origin_policy false

Chrome


  2. --allow-file-access-from-files

IPFS


.


ID


.


ipfs key gen -t rsa blog

ID



  1. ipfs


    ipfs add -r -s rabin --inline --raw-leaves --fscache < >

    -r —
    -s rabin — jpeg, mp3 .
    --inline — .
    --raw-leaves — --nocopy .
    --fscache — .


  2. ID .


    ipfs name publish -k blog <>



:


http://127.0.0.1:8080/ipfs/<>
http://127.0.0.1:8080/ipns/<id >

:


http://gateway.ipfs.io/ipfs/<>
http://gateway.ipfs.io/ipns/<id >

. ID .


.



Naturalmente, o design e a funcionalidade deste blog podem e devem ser desenvolvidos para atender às necessidades do usuário. Estabeleci uma base para desenvolver ainda mais.


Referências


Boa referência no
código XSLT GitHub ( instantâneo )

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