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refactor: create template at assets/dag-index-html
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This is a quick, static placeholder that follows the style of dir-index-html.
Future work will refine this, perhaps by reusing parts of https://explore.ipld.io/
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@lidel
lidel committed Nov 24, 2022
1 parent ff55745 commit 0531e93
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Showing 6 changed files with 108 additions and 36 deletions.
3 changes: 3 additions & 0 deletions assets/dag-index-html/README.md
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# dag-index-html

> HTML representation for non-UnixFS DAGs such as DAG-CBOR.
81 changes: 81 additions & 0 deletions assets/dag-index-html/index.go
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2 changes: 1 addition & 1 deletion assets/dir-index-html/README.md
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# dir-index-html

> Directory listing HTML for `go-ipfs` gateways
> Directory listing HTML for HTTP gateway
![](https://user-images.githubusercontent.com/157609/88379209-ce6f0600-cda2-11ea-9620-20b9237bb441.png)

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12 changes: 6 additions & 6 deletions assets/dir-index-html/dir-index.html
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Expand Up @@ -26,12 +26,12 @@
<div id="page-header">
<div id="page-header-logo" class="ipfs-logo">&nbsp;</div>
<div id="page-header-menu">
<div class="menu-item-wide"><a href="https://ipfs.io" target="_blank" rel="noopener noreferrer">About IPFS</a></div>
<div class="menu-item-wide"><a href="https://ipfs.io#install" target="_blank" rel="noopener noreferrer">Install IPFS</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.io" target="_blank" rel="noopener noreferrer">About</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.io#install" target="_blank" rel="noopener noreferrer">Install</a></div>
<div class="menu-item-wide"><a href="https://ipfs.tech" target="_blank" rel="noopener noreferrer">About IPFS</a></div>
<div class="menu-item-wide"><a href="https://ipfs.tech#install" target="_blank" rel="noopener noreferrer">Install IPFS</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.tech" target="_blank" rel="noopener noreferrer">About</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.tech#install" target="_blank" rel="noopener noreferrer">Install</a></div>
<div>
<a href="https://github.com/ipfs/go-ipfs/issues/new/choose" target="_blank" rel="noopener noreferrer" title="Report a bug">
<a href="https://github.com/ipfs/kubo/issues/new/choose" target="_blank" rel="noopener noreferrer" title="Report a bug">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18.4 21"><circle cx="7.5" cy="4.8" r="1"/><circle cx="11.1" cy="4.8" r="1"/><path d="M12.7 8.4c-0.5-1.5-1.9-2.5-3.5-2.5 -1.6 0-3 1-3.5 2.5H12.7z"/><path d="M8.5 9.7H5c-0.5 0.8-0.7 1.7-0.7 2.7 0 2.6 1.8 4.8 4.2 5.2V9.7z"/><path d="M13.4 9.7H9.9v7.9c2.4-0.4 4.2-2.5 4.2-5.2C14.1 11.4 13.9 10.5 13.4 9.7z"/><circle cx="15.7" cy="12.9" r="1"/><circle cx="15.1" cy="15.4" r="1"/><circle cx="15.3" cy="10.4" r="1"/><circle cx="2.7" cy="12.9" r="1"/><circle cx="3.3" cy="15.4" r="1"/><circle cx="3.1" cy="10.4" r="1"/></svg>
</a>
</div>
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</td>
<td class="no-linebreak">
{{ if .Hash }}
<a class="ipfs-hash" translate="no" href={{ if $root.DNSLink }}"https://cid.ipfs.io/#{{ .Hash | urlEscape}}" target="_blank" rel="noreferrer noopener"{{ else }}"{{ $root.GatewayURL }}/ipfs/{{ .Hash | urlEscape}}?filename={{ .Name | urlEscape }}"{{ end }}>
<a class="ipfs-hash" translate="no" href={{ if $root.DNSLink }}"https://cid.ipfs.tech/#{{ .Hash | urlEscape}}" target="_blank" rel="noreferrer noopener"{{ else }}"{{ $root.GatewayURL }}/ipfs/{{ .Hash | urlEscape}}?filename={{ .Name | urlEscape }}"{{ end }}>
{{ .ShortHash }}
</a>
{{ end }}
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12 changes: 6 additions & 6 deletions assets/dir-index-html/src/dir-index.html
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<div id="page-header">
<div id="page-header-logo" class="ipfs-logo">&nbsp;</div>
<div id="page-header-menu">
<div class="menu-item-wide"><a href="https://ipfs.io" target="_blank" rel="noopener noreferrer">About IPFS</a></div>
<div class="menu-item-wide"><a href="https://ipfs.io#install" target="_blank" rel="noopener noreferrer">Install IPFS</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.io" target="_blank" rel="noopener noreferrer">About</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.io#install" target="_blank" rel="noopener noreferrer">Install</a></div>
<div class="menu-item-wide"><a href="https://ipfs.tech" target="_blank" rel="noopener noreferrer">About IPFS</a></div>
<div class="menu-item-wide"><a href="https://ipfs.tech#install" target="_blank" rel="noopener noreferrer">Install IPFS</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.tech" target="_blank" rel="noopener noreferrer">About</a></div>
<div class="menu-item-narrow"><a href="https://ipfs.tech#install" target="_blank" rel="noopener noreferrer">Install</a></div>
<div>
<a href="https://github.com/ipfs/go-ipfs/issues/new/choose" target="_blank" rel="noopener noreferrer" title="Report a bug">
<a href="https://github.com/ipfs/kubo/issues/new/choose" target="_blank" rel="noopener noreferrer" title="Report a bug">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18.4 21"><circle cx="7.5" cy="4.8" r="1"/><circle cx="11.1" cy="4.8" r="1"/><path d="M12.7 8.4c-0.5-1.5-1.9-2.5-3.5-2.5 -1.6 0-3 1-3.5 2.5H12.7z"/><path d="M8.5 9.7H5c-0.5 0.8-0.7 1.7-0.7 2.7 0 2.6 1.8 4.8 4.2 5.2V9.7z"/><path d="M13.4 9.7H9.9v7.9c2.4-0.4 4.2-2.5 4.2-5.2C14.1 11.4 13.9 10.5 13.4 9.7z"/><circle cx="15.7" cy="12.9" r="1"/><circle cx="15.1" cy="15.4" r="1"/><circle cx="15.3" cy="10.4" r="1"/><circle cx="2.7" cy="12.9" r="1"/><circle cx="3.3" cy="15.4" r="1"/><circle cx="3.1" cy="10.4" r="1"/></svg>
</a>
</div>
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</td>
<td class="no-linebreak">
{{ if .Hash }}
<a class="ipfs-hash" translate="no" href={{ if $root.DNSLink }}"https://cid.ipfs.io/#{{ .Hash | urlEscape}}" target="_blank" rel="noreferrer noopener"{{ else }}"{{ $root.GatewayURL }}/ipfs/{{ .Hash | urlEscape}}?filename={{ .Name | urlEscape }}"{{ end }}>
<a class="ipfs-hash" translate="no" href={{ if $root.DNSLink }}"https://cid.ipfs.tech/#{{ .Hash | urlEscape}}" target="_blank" rel="noreferrer noopener"{{ else }}"{{ $root.GatewayURL }}/ipfs/{{ .Hash | urlEscape}}?filename={{ .Name | urlEscape }}"{{ end }}>
{{ .ShortHash }}
</a>
{{ end }}
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34 changes: 11 additions & 23 deletions core/corehttp/gateway_handler_codec.go
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Expand Up @@ -12,6 +12,7 @@ import (

ipldlegacy "github.com/ipfs/go-ipld-legacy"
ipath "github.com/ipfs/interface-go-ipfs-core/path"
dih "github.com/ipfs/kubo/assets/dag-index-html"
"github.com/ipfs/kubo/tracing"
"github.com/ipld/go-ipld-prime"
"github.com/ipld/go-ipld-prime/multicodec"
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}

func (i *gatewayHandler) serveCodecHTML(ctx context.Context, w http.ResponseWriter, r *http.Request, resolvedPath ipath.Resolved, contentPath ipath.Path) {
codecName := mc.Code(resolvedPath.Cid().Prefix().Codec).String()
body := fmt.Sprintf(`<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
</head>
<body>
<p>Requested CID <code>%q</code> uses <code>%q</code> codec.</p>
<ul>
<li><a href="?format=json" rel="nofollow">Preview as JSON</a> (<code>application/json</code>)</li>
<li>Download as
<ul>
<li><a href="?format=raw" rel="nofollow">Raw Block</a> (no conversion)</li>
<li><a href="?format=dag-json" rel="nofollow">DAG-JSON</a> (specs at <a href="https://ipld.io/specs/codecs/dag-json/spec/" rel="noreferrer nofollow">IPLD</a> and <a href="https://www.iana.org/assignments/media-types/application/vnd.ipld.dag-json" rel="noreferrer nofollow">IANA</a>)</li>
<li><a href="?format=dag-cbor" rel="nofollow">DAG-CBOR</a> (specs at <a href="https://ipld.io/specs/codecs/dag-cbor/spec/" rel="noreferrer nofollow">IPLD</a> and <a href="https://www.iana.org/assignments/media-types/application/vnd.ipld.dag-cbor" rel="noreferrer nofollow">IANA</a>)</li>
</ul>
</li>
</ul>
</body>
</html>
`, resolvedPath.Cid(), codecName)

_, _ = w.Write([]byte(body))
// TODO: cache-control/etag like for DirIndex
cidCodec := mc.Code(resolvedPath.Cid().Prefix().Codec)
if err := dih.DagIndexTemplate.Execute(w, dih.DagIndexTemplateData{
Path: contentPath.String(),
CID: resolvedPath.Cid().String(),
CodecName: cidCodec.String(),
CodecHex: fmt.Sprintf("0x%x", uint64(cidCodec)),
}); err != nil {
webError(w, "failed to generate HTML listing for this DAG: retry without 'Accept: text/html'", err, http.StatusInternalServerError)
}
}

func (i *gatewayHandler) serveCodecRaw(ctx context.Context, w http.ResponseWriter, r *http.Request, resolvedPath ipath.Resolved, contentPath ipath.Path, contentType string) {
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