Repair SVGs and make Workarounds for librsvg

Repairs the following bugs

Function details: Some Librsvg-Bugs should be repaired:

• phab:T68672 sed -i "s/<style>/<style type=\"text\/css\">/" (f.e. File:Cityfone_logo.svg)
• phab:T32033 sed -ri 's/stroke-dasharray=\"([[:digit:]\., ]*)([[:digit:]\.]+) ([[:digit:]\., ]+)\"/stroke-dasharray=\"\1\2,\3\"/g' (f.e. File:EKG-Reto_001.svg)
• phab:T55899 sed -ri "s/<mask([[:alnum:] =\"]*) maskUnits=\"userSpaceOnUse\"( id=\"[[:alnum:]_]+\"|)>/<mask\1\2>/g" (f.e. File:SVG_mask.svg)
• phab:T184369 sed -ri "s/font-family=\"'([-[:alnum:] ]*)'(|,[-[:lower:]]+)\"/font-family=\'\1\'/g" (f.e. File:T184369.svg)
• phab:T35245 one of the following:
  • sed -ri "s/<tspan([-[:alnum:]\.\"\#\ =]*) x=\"([-[:digit:]\.]+)( |,)([-[:digit:]\. ,]+)\"([-[:alnum:]\.\"\#\ =]*)>/<tspan x=\"\2\" \1 \5>/g" (f.e. File:WI_Area_Codes.svg)
  • sed -ri "s/<tspan([-[:alnum:]\.\"\#\ =]*) x=\"([-[:digit:]\.]+)( |,)([-[:digit:]\. ,]+)\"([-[:alnum:]\.\"\#\ =]*)>([[:alnum:]])/<tspan x=\"\2\" \1 \5>\6<\/tspan><tspan x=\"\4\" \1 \5>/g" (f.e. File:Kalliauer_et_al_2018_Acta_Mechanica_Fig11.svg)
• phab:T193929 sed -i "s/ xlink:href=\"data:image\/jpg;base64,/ xlink:href=\"data:image\/jpeg;base64,/g" (f.e. File:Barents_Sea_map_hr.svg)
• phab:T194192sed -ri "s/<svg([-[:alnum:]=\" ]*) viewBox=\"0,0,([[:digit:]\.]*),([[:digit:]\.]*)\"/<svg\1 viewBox=\"0 0 \2 \3\"/g" (f.e. File:WikiImplementationBug_T194192.svg)
• remove CDATA sed -ri -e ':a' -e 'N' -e '$!ba' -e "s/<\!\[CDATA\[([[:alnum:]=+\/\t\n[:space:]@:;\(\)\"\,\'\{\}\-])*\t\]\]>[[:space:]]*//g" (f.e. File:Map-Awala_Yalimpo.svg)
• remove jpeg in metadata sed -ri -e ':a' -e 'N' -e '$!ba' -e "s/<xapGImg:image>([[:alnum:][:space:]\/+])*={0,2}[[:space:]]*<\/xapGImg:image>//g" (f.e. File:Harta_dialectului_lemosin.svg)
• add mimetype: sed -i "s/ xlink:href=\"data:;base64,\/9j\/4AAQSkZJRgABAgAAZABkAAD\/7AARRHVja3kAAQAEAAAAHgAA/ xlink:href=\"data:image\/jpeg;base64,\/9j\/4AAQSkZJRgABAgAAZABkAAD\/7AARRHVja3kAAQAEAAAAHgAA/" (f.e. File:Asia.svg) sed -ri "s/ xlink:href=\"data:;base64,( |)iVBORw0KGgoAAAANSUhEUgAA/ xlink:href=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAA/" (f.e. File:Historical_map_of_Georgia_1267_BC.svg)
• Replaced "href" with "xlink:href" (f.e. File:Eliandthethirteenthconfession_logo.svg done by User:TilmannR)
• phab:T32033 stroke-dasharray in PNG thumbnails does not support spaces as separators
• phab:T35245 Multiple x-coordinates in text/tspan
• phab:T43424 flowRoot (defined only in deprecated SVG 1.2 draft) not supported by rsvg
• phab:T55899 SVG masks fail to render (or even display)
• phab:T68672 SVG style element ignored if no type="text/css" attribute is specified
• phab:T184369 font-family="'font name'" and style="font-family:'font name'" does not work in SVG rendering
• phab:T194192 viewBox="0,0,620,472" should be the same as viewBox="0 0 620 472"
• phab:T217990 arc flags without space not recognized

Extract PNG from FakeSVG

Web service restart

If the Error "500 - Internal Server Error" occurs, the web service has to be restarted. You have to message JoKalliauer to fix it. (see below)

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