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| Author | SHA1 | Date | |
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 Jaidyn Ann
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c400dc6f38 | ||
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Jaidyn Ann
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abe60d8b11 | ||
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Jaidyn Ann
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14126f301e |
222
fedi2html.sh
222
fedi2html.sh
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@ -6,71 +6,7 @@
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# Date:
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# Date:
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#―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
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#―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
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# Return the ID of a post, based on its URL.
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# url_id $url
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url_id() {
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local url="$1"
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# Pleroma-style URLs: https://jam.xwx.moe/notice/Ac6PIZAP0ZzkMTYBBg
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# Mastodon-style URLs: https://esperanto.masto.host/@minjo/111461250815264185
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if echo "$url" | grep "/notice/" > /dev/null; then
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echo "$url" \
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| sed 's%.*/notice/%%'
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else
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echo "$url" \
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| sed 's%.*/@[[:alnum:]]*/%%'
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fi
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}
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# Return the server (including protocol) of a post, based on its URL.
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# url_server $url
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url_server() {
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local url="$1"
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local protocol="$(echo "$url" | grep --only-matching '[[:alnum:]]*://')"
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printf "$protocol"
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echo "$url" \
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| sed 's%^'"$protocol"'%%' \
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| sed 's%/.*%%'
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}
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# Make a request to the /api/v1/statuses/:id/$request API endpoint.
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# statuses_api_request $post_url $request
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statuses_api_request() {
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local post_url="$1"
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local api_request="$2"
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if test -n "$api_request"; then
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api_request="/$api_request"
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fi
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local id="$(url_id "$url")"
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local server="$(url_server "$url")"
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curl --location --header 'Accept: application/json,application/activity+json' \
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"$server/api/v1/statuses/${id}${api_request}"
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}
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# Require the context-JSON of a post, by URL.
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# fetch_post_context $url
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fetch_post_context() {
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local url="$1"
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statuses_api_request "$url" "context"
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}
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# Given a post URL, request its JSON.
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# fetch_post $url
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fetch_post() {
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local url="$1"
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statuses_api_request "$url"
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}
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POST_TEMPLATE='
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POST_TEMPLATE='
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<!DOCTYPE html>
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<html>
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<body>
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<link rel="stylesheet" href="comments.css" type="text/css">
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<article class="comment">
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<article class="comment">
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<a class="user" href="$ACCOUNT_URL">
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<a class="user" href="$ACCOUNT_URL">
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<img class="avatar" src="$ACCOUNT_AVATAR">
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<img class="avatar" src="$ACCOUNT_AVATAR">
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@ -86,9 +22,10 @@ POST_TEMPLATE='
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<div class="attachments">
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<div class="attachments">
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$POST_ATTACHMENTS
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$POST_ATTACHMENTS
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</div>
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</div>
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<div class="responses">
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$POST_RESPONSES
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</div>
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</article>
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</article>
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</body>
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</html>
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'
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'
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@ -120,6 +57,48 @@ ATTACH_IMAGE_TEMPLATE='
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EMOJI_TEMPLATE='<img class="emoji" src="$EMOJI_URL" alt="$EMOJI_SHORTCODE" title="$EMOJI_SHORTCODE">'
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EMOJI_TEMPLATE='<img class="emoji" src="$EMOJI_URL" alt="$EMOJI_SHORTCODE" title="$EMOJI_SHORTCODE">'
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# Given a note’s JSON, render it as HTML.
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# The most important part of the script!
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# render_post $post_data $context_data $tree_level
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render_post() {
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local post_data="$1"
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local responses_data="$2"
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local POST_TREE_LEVEL="$3"
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local ACCOUNT_URL="$(echo "$post_data" | jq -r .account.url)"
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local ACCOUNT_ID="$(echo "$post_data" | jq -r .account.fqn)"
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local ACCOUNT_NAME="$(echo "$post_data" | jq -r .account.display_name | replace_emojis "$(echo "$post_data" | jq -r '.account')")"
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local ACCOUNT_AVATAR="$(echo "$post_data" | jq -r .account.avatar)"
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local POST_URL="$(echo "$post_data" | jq -r .url)"
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local POST_DATE="$(echo "$post_data" | jq -r .created_at)"
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local POST_CONTENT="$(echo "$post_data" | jq -r .content | replace_emojis "$post_data")"
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local POST_ATTACHMENTS="$(media_attachments "$post_data")"
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local POST_RESPONSES="$(render_responses "$post_data" "$responses_data" "$POST_TREE_LEVEL")"
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env_subst "$POST_TEMPLATE"
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}
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# Render a post’s responses one-by-one and recursively.
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# Each branch of the response tree will be rendered completely before proceeding
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# to the next.
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# render_responses $post_data $context_data $tree_level
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render_responses() {
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local post_data="$1"
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local responses_data="$2"
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local level="$3"
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if test -z "$level"; then level=0; fi
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local id="$(echo "$post_data" | jq -r '.id')"
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local responses="$(echo "$responses_data" | grep "in_reply_to_id.*$id")"
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local IFS="
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"
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for response in $responses; do
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render_post "$response" "$responses_data" "$(expr "$level" + 1)"
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done
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}
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# Accepts a string over stdin; it will replace all emoji shortcodes along stdin
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# Accepts a string over stdin; it will replace all emoji shortcodes along stdin
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# input with appropriate <img> HTML, based on $EMOJI_TEMPLATE, and based on
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# input with appropriate <img> HTML, based on $EMOJI_TEMPLATE, and based on
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# a post’s JSON.
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# a post’s JSON.
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@ -166,6 +145,73 @@ media_attachments() {
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}
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}
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# Pass a post’s context JSON along stdin; out comes the response_data in JSON.
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# fetch_post_context $url | context_to_responses
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context_to_responses() {
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jq -cr '.descendants[] |= sort_by(.created_at)'
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}
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# Make a request to the /api/v1/statuses/:id/$request API endpoint.
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# statuses_api_request $post_url $request
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statuses_api_request() {
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local post_url="$1"
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local api_request="$2"
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if test -n "$api_request"; then
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api_request="/$api_request"
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fi
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local id="$(url_id "$url")"
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local server="$(url_server "$url")"
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curl --location --header 'Accept: application/json,application/activity+json' \
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"$server/api/v1/statuses/${id}${api_request}"
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}
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# Require the context-JSON of a post, by URL.
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# fetch_post_context $url
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fetch_post_context() {
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local url="$1"
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statuses_api_request "$url" "context"
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}
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# Given a post URL, request its JSON.
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# fetch_post $url
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fetch_post() {
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local url="$1"
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statuses_api_request "$url"
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}
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# Return the ID of a post, based on its URL.
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# url_id $url
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url_id() {
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local url="$1"
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# Pleroma-style URLs: https://jam.xwx.moe/notice/Ac6PIZAP0ZzkMTYBBg
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# Mastodon-style URLs: https://esperanto.masto.host/@minjo/111461250815264185
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if echo "$url" | grep "/notice/" > /dev/null; then
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echo "$url" \
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| sed 's%.*/notice/%%'
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else
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echo "$url" \
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| sed 's%.*/@[[:alnum:]]*/%%'
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fi
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}
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# Return the server (including protocol) of a post, based on its URL.
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# url_server $url
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url_server() {
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local url="$1"
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local protocol="$(echo "$url" | grep --only-matching '[[:alnum:]]*://')"
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printf "$protocol"
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echo "$url" \
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| sed 's%^'"$protocol"'%%' \
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| sed 's%/.*%%'
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}
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# Sanitize a template-string.
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# Sanitize a template-string.
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# AKA, escape quotation-marks.
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# AKA, escape quotation-marks.
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# prep_template $template
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# prep_template $template
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@ -189,18 +235,34 @@ env_subst() {
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}
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}
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# Given a note’s JSON, render it as HTML.
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usage() {
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# The most important part of the script!
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echo "usage: $(basename "$0") POST_URL"
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# render_post $post_data
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echo
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render_post() {
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echo "$(basename "$0") does exactly what it says on the tin: It formats"
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local post_data="$1"
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echo "a fediverse post (and its replies) into simple-and-embeddable HTML."
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local ACCOUNT_URL="$(echo "$post_data" | jq -r .account.url)"
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echo
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local ACCOUNT_ID="$(echo "$post_data" | jq -r .account.fqn)"
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echo "It works with posts from any server that supports Mastodon’s API,"
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local ACCOUNT_NAME="$(echo "$post_data" | jq -r .account.display_name | replace_emojis "$post_data")"
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echo "including Pleroma, Akkoma, Glitch, etc."
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local ACCOUNT_AVATAR="$(echo "$post_data" | jq -r .account.avatar)"
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echo
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local POST_URL="$(echo "$post_data" | jq -r .url)"
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echo "Notably, it supports post-atachments and custom-emoji. Keep in mind"
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local POST_DATE="$(echo "$post_data" | jq -r .created_at)"
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echo "that images are all fetched from remote sources. It is recommended,"
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local POST_CONTENT="$(echo "$post_data" | jq -r .content | replace_emojis "$post_data")"
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echo "if privacy or total archival, is a concern, to use wget(1)’s --mirror"
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local POST_ATTACHMENTS="$(media_attachments "$post_data")"
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echo "(or something like it) to fetch even these foreign files."
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env_subst "$POST_TEMPLATE"
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}
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}
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URL="$1"
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if test -z "$URL"; then
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usage 1>&2
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exit 2
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elif test "$URL" = "-h" -o "$URL" = "--help"; then
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usage
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exit 0
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fi
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POST="$(fetch_post "$URL")"
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RESPONSES="$(fetch_post_context "$URL" | context_to_responses)"
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render_post "$POST" "$RESPONSES" 0
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