From e1483b4e7e8191f3db52d24e9cfc4098e6c2fa6f Mon Sep 17 00:00:00 2001
From: ale <ale@incal.net>
Date: Tue, 11 Nov 2014 11:03:19 +0000
Subject: [PATCH] add online ePub reader using epub.js

---
 htdocs/static/css/reader.css | 51 ++++++++++++++++++++++++
 htdocs/static/js/epub.min.js |  4 ++
 htdocs/static/js/inflate.js  |  2 +
 htdocs/static/js/zip.min.js  | 30 +++++++++++++++
 htdocs/templates/_head.html  |  3 +-
 htdocs/templates/book.html   |  9 +++++
 htdocs/templates/reader.html | 47 ++++++++++++++++++++++
 web.go                       | 75 ++++++++++++++++++++++++++++--------
 8 files changed, 204 insertions(+), 17 deletions(-)
 create mode 100644 htdocs/static/css/reader.css
 create mode 100644 htdocs/static/js/epub.min.js
 create mode 100644 htdocs/static/js/inflate.js
 create mode 100644 htdocs/static/js/zip.min.js
 create mode 100644 htdocs/templates/reader.html

diff --git a/htdocs/static/css/reader.css b/htdocs/static/css/reader.css
new file mode 100644
index 0000000..3563964
--- /dev/null
+++ b/htdocs/static/css/reader.css
@@ -0,0 +1,51 @@
+body {
+    overflow: hidden;
+}
+
+#main {
+    position: absolute;
+    width: 100%;
+    height: 100%;
+}
+
+#area {
+    width: 80%;
+    height: 80%;
+    margin: 5% auto;
+    max-width: 1250px;
+}
+
+#area iframe {
+    border: none;
+}
+
+#prev {
+    left: 40px;
+}
+
+#next {
+    right: 40px;
+}
+
+.arrow {
+    position: absolute;
+    top: 50%;
+    margin-top: -32px;
+    font-size: 64px;
+    color: #e2e2e2;
+    font-family: arial, sans-serif;
+    font-weight: bold;
+    cursor: pointer;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    user-select: none;
+}
+
+.arrow:hover {
+    color: #777;
+}
+
+.arrow:active {
+    color: #000;
+}
+
diff --git a/htdocs/static/js/epub.min.js b/htdocs/static/js/epub.min.js
new file mode 100644
index 0000000..b8a972a
--- /dev/null
+++ b/htdocs/static/js/epub.min.js
@@ -0,0 +1,4 @@
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b=EPUBJS.core.uri(a);return!b.extension||"epub"!=b.extension&&"zip"!=b.extension?!1:!0},EPUBJS.Book.prototype.isSaved=function(a){var b;return localStorage?(b=localStorage.getItem(a),localStorage&&null!==b?!0:!1):!1},EPUBJS.Book.prototype.generateBookKey=function(a){return"epubjs:"+EPUBJS.VERSION+":"+window.location.host+":"+a},EPUBJS.Book.prototype.saveContents=function(){return localStorage?void localStorage.setItem(this.settings.bookKey,JSON.stringify(this.contents)):!1},EPUBJS.Book.prototype.removeSavedContents=function(){return localStorage?void localStorage.removeItem(this.settings.bookKey):!1},EPUBJS.Book.prototype.renderTo=function(a){var b,c=this;if(_.isElement(a))this.element=a;else{if("string"!=typeof a)return void console.error("Not an Element");this.element=EPUBJS.core.getEl(a)}return b=this.opened.then(function(){return c.renderer.initialize(c.element,c.settings.width,c.settings.height),c._rendered(),c.startDisplay()})},EPUBJS.Book.prototype.startDisplay=function(){var a;return a=this.settings.goto?this.goto(this.settings.goto):this.settings.previousLocationCfi?this.gotoCfi(this.settings.previousLocationCfi):this.displayChapter(this.spinePos)},EPUBJS.Book.prototype.restore=function(a){var b,c=this,d=["manifest","spine","metadata","cover","toc","spineNodeIndex","spineIndexByURL","globalLayoutProperties"],e=!1,f=this.generateBookKey(a),g=localStorage.getItem(f),h=d.length;if(this.settings.clearSaved&&(e=!0),!e&&"undefined"!=g&&null!==g)for(c.contents=JSON.parse(g),b=0;h>b;b++){var i=d[b];if(!c.contents[i]){e=!0;break}c[i]=c.contents[i]}return!e&&g&&this.contents&&this.settings.contentsPath?(this.settings.bookKey=f,this.ready.manifest.resolve(this.manifest),this.ready.spine.resolve(this.spine),this.ready.metadata.resolve(this.metadata),this.ready.cover.resolve(this.cover),this.ready.toc.resolve(this.toc),!0):!1},EPUBJS.Book.prototype.displayChapter=function(a,b,c){var d,e,f,g,h=this,i=c||new RSVP.defer;return this.isRendered?this._rendering||this._rendering?(this._displayQ.enqueue("displayChapter",[a,b,i]),i.promise):(_.isNumber(a)?f=a:(e=new EPUBJS.EpubCFI(a),f=e.spinePos),(0>f||f>=this.spine.length)&&(console.warn("Not A Valid Location"),f=0,b=!1,e=!1),g=new EPUBJS.Chapter(this.spine[f],this.store),this._rendering=!0,d=h.renderer.displayChapter(g,this.globalLayoutProperties),e?h.renderer.gotoCfi(e):b&&h.renderer.lastPage(),d.then(function(){h.spinePos=f,i.resolve(h.renderer),h.settings.fromStorage||h.settings.contained||h.preloadNextChapter(),h.currentChapter=g,h._rendering=!1,h._displayQ.dequeue(),0===h._displayQ.length()&&h._gotoQ.dequeue()},function(a){console.error("Could not load Chapter: "+g.absolute),h.trigger("book:chapterLoadFailed",g.absolute),h._rendering=!1,i.reject(a)}),i.promise):(this._q.enqueue("displayChapter",arguments),i.reject({message:"Rendering",stack:(new Error).stack}),i.promise)},EPUBJS.Book.prototype.nextPage=function(){var a;return this.isRendered?(a=this.renderer.nextPage(),a?void 0:this.nextChapter()):this._q.enqueue("nextPage",arguments)},EPUBJS.Book.prototype.prevPage=function(){var a;return this.isRendered?(a=this.renderer.prevPage(),a?void 0:this.prevChapter()):this._q.enqueue("prevPage",arguments)},EPUBJS.Book.prototype.nextChapter=function(){var a;if(this.spinePos<this.spine.length-1){for(a=this.spinePos+1;this.spine[a]&&this.spine[a].linear&&"no"==this.spine[a].linear;)a++;if(a<this.spine.length)return this.displayChapter(a);this.trigger("book:atEnd")}else this.trigger("book:atEnd")},EPUBJS.Book.prototype.prevChapter=function(){var a;if(this.spinePos>0){for(a=this.spinePos-1;this.spine[a]&&this.spine[a].linear&&"no"==this.spine[a].linear;)a--;if(a>=0)return this.displayChapter(a,!0);this.trigger("book:atStart")}else this.trigger("book:atStart")},EPUBJS.Book.prototype.getCurrentLocationCfi=function(){return this.isRendered?this.renderer.currentLocationCfi:!1},EPUBJS.Book.prototype.goto=function(a){return 0===a.indexOf("epubcfi(")?this.gotoCfi(a):a.indexOf("%")===a.length-1?this.gotoPercentage(parseInt(a.substring(0,a.length-1))/100):"number"==typeof a||isNaN(a)===!1?this.gotoPage(a):this.gotoHref(a)},EPUBJS.Book.prototype.gotoCfi=function(a,b){var c,d,e,f=b||new RSVP.defer;return this.isRendered?this._moving||this._rendering?(console.warn("Renderer is moving"),this._gotoQ.enqueue("gotoCfi",[a,f]),!1):(c=new EPUBJS.EpubCFI(a),d=c.spinePos,-1==d?!1:(e=this.spine[d],promise=f.promise,this._moving=!0,this.currentChapter&&this.spinePos===d?(this.renderer.gotoCfi(c),this._moving=!1,f.resolve(this.renderer.currentLocationCfi)):(e&&-1!=d||(d=0,e=this.spine[d]),this.currentChapter=new EPUBJS.Chapter(e,this.store),this.currentChapter&&(this.spinePos=d,render=this.renderer.displayChapter(this.currentChapter,this.globalLayoutProperties),this.renderer.gotoCfi(c),render.then(function(a){this._moving=!1,f.resolve(a.currentLocationCfi)}.bind(this)))),promise.then(function(){this._gotoQ.dequeue()}.bind(this)),promise)):(console.warn("Not yet Rendered"),this.settings.previousLocationCfi=a,!1)},EPUBJS.Book.prototype.gotoHref=function(a,b){var c,d,e,f,g,h=b||new RSVP.defer;return this.isRendered?this._moving||this._rendering?(this._gotoQ.enqueue("gotoHref",[a,h]),!1):(c=a.split("#"),d=c[0],e=c[1]||!1,f=d.replace(this.settings.contentsPath,""),g=this.spineIndexByURL[f],d||(g=this.currentChapter?this.currentChapter.spinePos:0),"number"!=typeof g?!1:this.currentChapter&&g==this.currentChapter.spinePos?(e?this.renderer.section(e):this.renderer.firstPage(),h.resolve(this.renderer.currentLocationCfi),h.promise.then(function(){this._gotoQ.dequeue()}.bind(this)),h.promise):this.displayChapter(g).then(function(){e&&this.renderer.section(e),h.resolve(this.renderer.currentLocationCfi)}.bind(this))):(this.settings.goto=a,!1)},EPUBJS.Book.prototype.gotoPage=function(a){var b=this.pagination.cfiFromPage(a);return this.gotoCfi(b)},EPUBJS.Book.prototype.gotoPercentage=function(a){var b=this.pagination.pageFromPercentage(a);return this.gotoPage(b)},EPUBJS.Book.prototype.preloadNextChapter=function(){var a,b=this.spinePos+1;return b>=this.spine.length?!1:(a=new EPUBJS.Chapter(this.spine[b]),void(a&&EPUBJS.core.request(a.absolute)))},EPUBJS.Book.prototype.storeOffline=function(){var a=this,b=_.values(this.manifest);return EPUBJS.storage.batch(b).then(function(){a.settings.stored=!0,a.trigger("book:stored")})},EPUBJS.Book.prototype.availableOffline=function(){return this.settings.stored>0?!0:!1},EPUBJS.Book.prototype.setStyle=function(a,b,c){var d=["color","background","background-color"];return this.isRendered?(this.settings.styles[a]=b,this.renderer.setStyle(a,b,c),void(-1===d.indexOf(a)&&this.renderer.reformat())):this._q.enqueue("setStyle",arguments)},EPUBJS.Book.prototype.removeStyle=function(a){return this.isRendered?(this.renderer.removeStyle(a),this.renderer.reformat(),void delete this.settings.styles[a]):this._q.enqueue("removeStyle",arguments)},EPUBJS.Book.prototype.addHeadTag=function(a,b){return this.isRendered?void(this.settings.headTags[a]=b):this._q.enqueue("addHeadTag",arguments)},EPUBJS.Book.prototype.useSpreads=function(a){console.warn("useSpreads is deprecated, use forceSingle or set a layoutOveride 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EPUBJS.Chapter(b,this.store),c.load()),c},EPUBJS.Book.prototype.unload=function(){this.settings.restore&&localStorage&&this.saveContents(),this.unlistenToRenderer(this.renderer),this.trigger("book:unload")},EPUBJS.Book.prototype.destroy=function(){window.removeEventListener("beforeunload",this.unload),this.currentChapter&&this.currentChapter.unload(),this.unload(),this.render&&this.render.remove()},EPUBJS.Book.prototype._ready=function(){this.trigger("book:ready")},EPUBJS.Book.prototype._rendered=function(){this.isRendered=!0,this.trigger("book:rendered"),this._q.flush()},EPUBJS.Book.prototype.applyStyles=function(a,b){a.applyStyles(this.settings.styles),b()},EPUBJS.Book.prototype.applyHeadTags=function(a,b){a.applyHeadTags(this.settings.headTags),b()},EPUBJS.Book.prototype._registerReplacements=function(a){a.registerHook("beforeChapterDisplay",this.applyStyles.bind(this,a),!0),a.registerHook("beforeChapterDisplay",this.applyHeadTags.bind(this,a),!0),a.registerHook("beforeChapterDisplay",EPUBJS.replace.hrefs.bind(this),!0),this._needsAssetReplacement()&&a.registerHook("beforeChapterDisplay",[EPUBJS.replace.head,EPUBJS.replace.resources,EPUBJS.replace.svg],!0)},EPUBJS.Book.prototype._needsAssetReplacement=function(){return this.settings.fromStorage?"filesystem"==this.storage.getStorageType()?!1:!0:this.settings.contained?!0:!1},EPUBJS.Book.prototype.parseLayoutProperties=function(a){var b=this.layoutOveride&&this.layoutOveride.layout||a.layout||"reflowable",c=this.layoutOveride&&this.layoutOveride.spread||a.spread||"auto",d=this.layoutOveride&&this.layoutOveride.orientation||a.orientation||"auto";return{layout:b,spread:c,orientation:d}},RSVP.EventTarget.mixin(EPUBJS.Book.prototype),RSVP.on("error",function(){}),RSVP.configure("instrument",!0),RSVP.on("rejected",function(a){console.error(a.detail.message,a.detail.stack)}),EPUBJS.Chapter=function(a,b){this.href=a.href,this.absolute=a.url,this.id=a.id,this.spinePos=a.index,this.cfiBase=a.cfiBase,this.properties=a.properties,this.manifestProperties=a.manifestProperties,this.linear=a.linear,this.pages=1,this.store=b,this.epubcfi=new EPUBJS.EpubCFI,this.deferred=new RSVP.defer,this.loaded=this.deferred.promise},EPUBJS.Chapter.prototype.load=function(a){var 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a.forEach(function(a){var c="";c+=2*(a.index+1),a.id&&(c+="["+a.id+"]"),b.push(c)}),b.join("/")},EPUBJS.EpubCFI.prototype.generateCfiFromElement=function(a,b){var c=this.pathTo(a),d=this.generatePathComponent(c);return d.length?"epubcfi("+b+"!"+d+"/1:0)":"epubcfi("+b+"!/4/)"},EPUBJS.EpubCFI.prototype.pathTo=function(a){for(var b,c=[];a&&null!==a.parentNode&&9!=a.parentNode.nodeType;)b=a.parentNode.children,c.unshift({id:a.id,tagName:a.tagName,index:b?Array.prototype.indexOf.call(b,a):0}),a=a.parentNode;return c},EPUBJS.EpubCFI.prototype.getChapterComponent=function(a){var b=a.split("!");return b[0]},EPUBJS.EpubCFI.prototype.getPathComponent=function(a){var b=a.split("!"),c=b[1]?b[1].split(":"):"";return c[0]},EPUBJS.EpubCFI.prototype.getCharecterOffsetComponent=function(a){var b=a.split(":");return b[1]||""},EPUBJS.EpubCFI.prototype.parse=function(a){var b,c,d,e,f,g,h,i,j,k={},l=function(a){var b,c,d,e;return 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a&&(a=this.parse(a)),e=a.steps[a.steps.length-1],-1===a.spinePos?!1:(d=this.findParent(a,h))?(e&&"text"===e.type?(f=d.childNodes[e.index],a.characterOffset?(g=f.splitText(a.characterOffset),i.classList.add("EPUBJS-CFI-SPLIT"),d.insertBefore(i,g)):d.insertBefore(i,f)):d.insertBefore(i,d.firstChild),i):!1},EPUBJS.EpubCFI.prototype.createMarker=function(a){var b=a||document,c=b.createElement("span");return c.id="EPUBJS-CFI-MARKER:"+EPUBJS.core.uuid(),c.classList.add("EPUBJS-CFI-MARKER"),c},EPUBJS.EpubCFI.prototype.removeMarker=function(a,b){a.classList.contains("EPUBJS-CFI-SPLIT")?(nextSib=a.nextSibling,prevSib=a.previousSibling,nextSib&&prevSib&&3===nextSib.nodeType&&3===prevSib.nodeType&&(prevSib.textContent+=nextSib.textContent,a.parentNode.removeChild(nextSib)),a.parentNode.removeChild(a)):a.classList.contains("EPUBJS-CFI-MARKER")&&a.parentNode.removeChild(a)},EPUBJS.EpubCFI.prototype.findParent=function(a,b){var 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c,d,e,f,g,h,i,j,k,l,m,n;if(c=a.startContainer,3===c.nodeType)d=c.parentNode,h=1+2*EPUBJS.core.indexOfTextNode(c),e=this.pathTo(d);else{if(a.collapsed)return this.generateCfiFromElement(c,b);e=this.pathTo(c)}return f=this.generatePathComponent(e),g=a.startOffset,a.collapsed?"epubcfi("+b+"!"+f+"/"+h+":"+g+")":(i=a.endContainer,3===i.nodeType?(j=i.parentNode,n=1+2*EPUBJS.core.indexOfTextNode(i),k=this.pathTo(j)):k=this.pathTo(i),l=this.generatePathComponent(k),m=a.endOffset,"epubcfi("+b+"!"+f+"/"+h+":"+g+","+l+"/"+n+":"+m+")")},EPUBJS.EpubCFI.prototype.generateXpathFromSteps=function(a){var b=[".","*"];return a.forEach(function(a){var c=a.index+1;b.push(a.id?"*[position()="+c+" and @id='"+a.id+"']":"text"===a.type?"text()["+c+"]":"*["+c+"]")}),b.join("/")},EPUBJS.EpubCFI.prototype.generateRangeFromCfi=function(a,b){var c,d,e,f,g=b||document,h=g.createRange();return"string"==typeof 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this.events[a]?void(c?this.el.addEventListener(a,b.bind(c),!1):this.el.addEventListener(a,b,!1)):(console.warn("No event:",a,"defined yet, creating."),void this.createEvent(a))},EPUBJS.Events.prototype.deafen=function(a,b){this.el.removeEventListener(a,b,!1)},EPUBJS.Events.prototype.listenUntil=function(a,b,c,d){function e(){this.deafen(a,c),this.deafen(b,e)}this.listen(a,c,d),this.listen(b,e,this)},EPUBJS.hooks={},EPUBJS.Hooks=function(){function a(){}return a.prototype.getHooks=function(){var a;this.hooks={},Array.prototype.slice.call(arguments).forEach(function(a){this.hooks[a]=[]},this);for(var b in this.hooks)a=_.values(EPUBJS.hooks[b]),a.forEach(function(a){this.registerHook(b,a)},this)},a.prototype.registerHook=function(a,b,c){"undefined"!=typeof this.hooks[a]?"function"==typeof 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this.documentElement=a,this.spreadWidth=i+k,a.style.overflow="hidden",a.style.width=i+"px",a.style.height=c+"px",a.style[e]="horizontal",a.style[h]="auto",a.style[g]=i+"px",a.style[f]=k+"px",this.colWidth=i,this.gap=k,{pageWidth:this.spreadWidth,pageHeight:c}},EPUBJS.Layout.Reflowable.prototype.calculatePages=function(){var a,b;return this.documentElement.style.width="auto",a=this.documentElement.scrollWidth,b=Math.ceil(a/this.spreadWidth),{displayedPages:b,pageCount:b}},EPUBJS.Layout.ReflowableSpreads=function(){this.documentElement=null,this.spreadWidth=null},EPUBJS.Layout.ReflowableSpreads.prototype.format=function(a,b,c,d){var e=EPUBJS.core.prefixed("columnAxis"),f=EPUBJS.core.prefixed("columnGap"),g=EPUBJS.core.prefixed("columnWidth"),h=EPUBJS.core.prefixed("columnFill"),i=2,j=Math.floor(b),k=j%2===0?j:j-1,l=Math.floor(k/8),m=d>=0?d:l%2===0?l:l-1,n=Math.floor((k-m)/i);return this.documentElement=a,this.spreadWidth=(n+m)*i,a.style.overflow="hidden",a.style.width=k+"px",a.style.height=c+"px",a.style[e]="horizontal",a.style[h]="auto",a.style[f]=m+"px",a.style[g]=n+"px",this.colWidth=n,this.gap=m,{pageWidth:this.spreadWidth,pageHeight:c}},EPUBJS.Layout.ReflowableSpreads.prototype.calculatePages=function(){var a=this.documentElement.scrollWidth,b=Math.ceil(a/this.spreadWidth);return this.documentElement.style.width=b*this.spreadWidth-this.gap+"px",{displayedPages:b,pageCount:2*b}},EPUBJS.Layout.Fixed=function(){this.documentElement=null},EPUBJS.Layout.Fixed=function(a){var b,c,d,e,f=EPUBJS.core.prefixed("columnWidth"),g=a.querySelector("[name=viewport");return this.documentElement=a,g&&g.hasAttribute("content")&&(b=g.getAttribute("content"),c=b.split(","),c[0]&&(d=c[0].replace("width=","")),c[1]&&(e=c[1].replace("height=",""))),a.style.width=d+"px"||"auto",a.style.height=e+"px"||"auto",a.style[f]="auto",a.style.overflow="auto",this.colWidth=d,this.gap=0,{pageWidth:d,pageHeight:e}},EPUBJS.Layout.Fixed.prototype.calculatePages=function(){return{displayedPages:1,pageCount:1}},EPUBJS.Pagination=function(a){this.pages=[],this.locations=[],this.epubcfi=new EPUBJS.EpubCFI,a&&a.length&&this.process(a)},EPUBJS.Pagination.prototype.process=function(a){a.forEach(function(a){this.pages.push(a.page),this.locations.push(a.cfi)},this),this.pageList=a,this.firstPage=parseInt(this.pages[0]),this.lastPage=parseInt(this.pages[this.pages.length-1]),this.totalPages=this.lastPage-this.firstPage},EPUBJS.Pagination.prototype.pageFromCfi=function(a){var b=-1;if(0===this.locations.length)return-1;var 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b?b.getAttribute("href"):!1},EPUBJS.Parser.prototype.findTocPath=function(a){var b=a.querySelector("item[media-type='application/x-dtbncx+xml']");return b?b.getAttribute("href"):!1},EPUBJS.Parser.prototype.findCoverPath=function(a){var b=a.querySelector("item[properties='cover-image']");return b?b.getAttribute("href"):!1},EPUBJS.Parser.prototype.metadata=function(a){var b={},c=this;return 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Array.prototype.slice.call(a.childNodes).forEach(function(a){("a"==a.tagName||"span"==a.tagName)&&(b=a)}),b}function d(a){var d=[],e=b(a),f=Array.prototype.slice.call(e),g=f.length;return 0===g?!1:(f.forEach(function(a){var b,e,f,g=(a.getAttribute("id")||!1,c(a)),h=g.getAttribute("href")||"",i=g.textContent||"",j=parseInt(i),k=h.indexOf("epubcfi");-1!=k?(b=h.split("#"),e=b[0],f=b.length>1?b[1]:!1,d.push({cfi:f,href:h,packageUrl:e,page:j})):d.push({href:h,page:j})}),d)}var e=a.querySelector('nav[*|type="page-list"]');return e?d(e):[]},EPUBJS.Render.Iframe=function(){this.iframe=null,this.document=null,this.window=null,this.docEl=null,this.bodyEl=null,this.leftPos=0,this.pageWidth=0},EPUBJS.Render.Iframe.prototype.create=function(){return this.iframe=document.createElement("iframe"),this.iframe.id="epubjs-iframe:"+EPUBJS.core.uuid(),this.iframe.scrolling="no",this.iframe.seamless="seamless",this.iframe.style.border="none",this.iframe.addEventListener("load",this.loaded.bind(this),!1),this.iframe},EPUBJS.Render.Iframe.prototype.load=function(a){var b=this,c=new RSVP.defer;return a.url().then(function(a){b.leftPos=0,this.window&&this.unload(),this.iframe.onload=function(){b.document=b.iframe.contentDocument,b.docEl=b.document.documentElement,b.headEl=b.document.head,b.bodyEl=b.document.body,b.window=b.iframe.contentWindow,b.window.addEventListener("resize",b.resized.bind(b),!1),b.bodyEl&&(b.bodyEl.style.margin="0"),c.resolve(b.docEl)},this.iframe.onerror=function(a){c.reject({message:"Error Loading Contents: "+a,stack:(new Error).stack})},this.iframe.contentWindow.location.replace(a)}.bind(this)),c.promise},EPUBJS.Render.Iframe.prototype.loaded=function(){var a=this.iframe.contentWindow.location.href;"about:blank"!=a&&this.trigger("render:loaded",a)},EPUBJS.Render.Iframe.prototype.resize=function(a,b){this.iframe&&(this.iframe.height=b,isNaN(a)||a%2===0||(a+=1),this.iframe.width=a,this.width=this.iframe.getBoundingClientRect().width||a,this.height=this.iframe.getBoundingClientRect().height||b)},EPUBJS.Render.Iframe.prototype.resized=function(){this.width=this.iframe.getBoundingClientRect().width,this.height=this.iframe.getBoundingClientRect().height},EPUBJS.Render.Iframe.prototype.totalWidth=function(){return this.docEl.scrollWidth},EPUBJS.Render.Iframe.prototype.totalHeight=function(){return this.docEl.scrollHeight},EPUBJS.Render.Iframe.prototype.setPageDimensions=function(a,b){this.pageWidth=a,this.pageHeight=b},EPUBJS.Render.Iframe.prototype.setLeft=function(a){this.document.defaultView.scrollTo(a,0)},EPUBJS.Render.Iframe.prototype.setStyle=function(a,b,c){c&&(a=EPUBJS.core.prefixed(a)),this.bodyEl&&(this.bodyEl.style[a]=b)},EPUBJS.Render.Iframe.prototype.removeStyle=function(a){this.bodyEl&&(this.bodyEl.style[a]="")},EPUBJS.Render.Iframe.prototype.addHeadTag=function(a,b,c){var d=c||this.document,e=d.createElement(a),f=d.head;for(var g in b)e.setAttribute(g,b[g]);f&&f.insertBefore(e,f.firstChild)},EPUBJS.Render.Iframe.prototype.page=function(a){this.leftPos=this.pageWidth*(a-1),this.setLeft(this.leftPos)},EPUBJS.Render.Iframe.prototype.getPageNumberByElement=function(a){var b,c;if(a)return b=this.leftPos+a.getBoundingClientRect().left,c=Math.floor(b/this.pageWidth)+1},EPUBJS.Render.Iframe.prototype.getPageNumberByRect=function(a){var b,c;return b=this.leftPos+a.left,c=Math.floor(b/this.pageWidth)+1},EPUBJS.Render.Iframe.prototype.getBaseElement=function(){return this.bodyEl},EPUBJS.Render.Iframe.prototype.isElementVisible=function(a){var b,c;return a&&"function"==typeof a.getBoundingClientRect&&(b=a.getBoundingClientRect(),c=b.left,0!==b.width&&0!==b.height&&c>=0&&c<this.pageWidth)?!0:!1},EPUBJS.Render.Iframe.prototype.scroll=function(a){this.iframe.scrolling=a?"yes":"no"},EPUBJS.Render.Iframe.prototype.unload=function(){this.window.removeEventListener("resize",this.resized)},RSVP.EventTarget.mixin(EPUBJS.Render.Iframe.prototype),EPUBJS.Renderer=function(a,b){this.listenedEvents=["keydown","keyup","keypressed","mouseup","mousedown","click"],this.upEvent="mouseup",this.downEvent="mousedown","ontouchstart"in document.documentElement&&(this.listenedEvents.push("touchstart","touchend"),this.upEvent="touchend",this.downEvent="touchstart"),a&&"undefined"!=typeof EPUBJS.Render[a]?this.render=new EPUBJS.Render[a]:console.error("Not a Valid Rendering Method"),this.render.on("render:loaded",this.loaded.bind(this)),this.caches={},this.epubcfi=new EPUBJS.EpubCFI,this.spreads=!0,this.isForcedSingle=!1,this.resized=_.debounce(this.onResized.bind(this),100),this.layoutSettings={},this.hidden=b||!1,EPUBJS.Hooks.mixin(this),this.getHooks("beforeChapterDisplay"),this._q=EPUBJS.core.queue(this),this._moving=!1},EPUBJS.Renderer.prototype.Events=["renderer:keydown","renderer:keyup","renderer:keypressed","renderer:mouseup","renderer:mousedown","renderer:click","renderer:touchstart","renderer:touchend","renderer:selected","renderer:chapterUnloaded","renderer:chapterDisplayed","renderer:locationChanged","renderer:visibleLocationChanged","renderer:resized","renderer:spreads"],EPUBJS.Renderer.prototype.initialize=function(a,b,c){this.container=a,this.element=this.render.create(),this.initWidth=b,this.initHeight=c,this.width=b||this.container.clientWidth,this.height=c||this.container.clientHeight,this.container.appendChild(this.element),b&&c?this.render.resize(this.width,this.height):this.render.resize("100%","100%"),document.addEventListener("orientationchange",this.onResized)},EPUBJS.Renderer.prototype.displayChapter=function(a,b){return this._moving?void console.error("Rendering In Progress"):(this._moving=!0,a.url().then(function(){return this.currentChapter&&(this.currentChapter.unload(),this.render.window&&this.render.window.removeEventListener("resize",this.resized),this.removeEventListeners(),this.removeSelectionListeners(),this.trigger("renderer:chapterUnloaded"),this.contents=null,this.doc=null,this.pageMap=null),this.currentChapter=a,this.chapterPos=1,this.currentChapterCfiBase=a.cfiBase,this.layoutSettings=this.reconcileLayoutSettings(b,a.properties),this.load(a)}.bind(this)))},EPUBJS.Renderer.prototype.load=function(a){var b=new RSVP.defer;return this.layoutMethod=this.determineLayout(this.layoutSettings),this.layout=new EPUBJS.Layout[this.layoutMethod],this.visible(!1),render=this.render.load(a),render.then(function(a){this.currentChapter.setDocument(this.render.document),this.contents=a,this.doc=this.render.document,this.formated=this.layout.format(a,this.render.width,this.render.height,this.gap),this.render.setPageDimensions(this.formated.pageWidth,this.formated.pageHeight),this.initWidth||this.initHeight||this.render.window.addEventListener("resize",this.resized,!1),this.addEventListeners(),this.addSelectionListeners(),this.beforeDisplay(function(){var a=this.layout.calculatePages(),c=this.currentChapter,d=this._q.length();this._moving=!1,this.updatePages(a),this.visibleRangeCfi=this.getVisibleRangeCfi(),this.currentLocationCfi=this.visibleRangeCfi.start,0===d&&(this.trigger("renderer:locationChanged",this.currentLocationCfi),this.trigger("renderer:visibleRangeChanged",this.visibleRangeCfi)),c.cfi=this.currentLocationCfi,this.trigger("renderer:chapterDisplayed",c),this.visible(!0),b.resolve(this)}.bind(this))}.bind(this)),b.promise},EPUBJS.Renderer.prototype.loaded=function(a){this.trigger("render:loaded",a)},EPUBJS.Renderer.prototype.reconcileLayoutSettings=function(a,b){var c={};for(var d in a)a.hasOwnProperty(d)&&(c[d]=a[d]);return b.forEach(function(a){var b,d,e=a.replace("rendition:",""),f=e.indexOf("-");-1!=f&&(b=e.slice(0,f),d=e.slice(f+1),c[b]=d)}),c},EPUBJS.Renderer.prototype.determineLayout=function(a){var b=this.determineSpreads(this.minSpreadWidth),c=b?"ReflowableSpreads":"Reflowable",d=!1;return"pre-paginated"===a.layout&&(c="Fixed",d=!0,b=!1),"reflowable"===a.layout&&"none"===a.spread&&(c="Reflowable",d=!1,b=!1),"reflowable"===a.layout&&"both"===a.spread&&(c="ReflowableSpreads",d=!1,b=!0),this.spreads=b,this.render.scroll(d),this.trigger("renderer:spreads",b),c},EPUBJS.Renderer.prototype.beforeDisplay=function(a){this.triggerHooks("beforeChapterDisplay",a,this)},EPUBJS.Renderer.prototype.updatePages=function(){this.pageMap=this.mapPage(),this.displayedPages=this.spreads?Math.ceil(this.pageMap.length/2):this.pageMap.length,this.currentChapter.pages=this.pageMap.length,this._q.flush()},EPUBJS.Renderer.prototype.reformat=function(){var a,b=this;this.contents&&(spreads=this.determineSpreads(this.minSpreadWidth),spreads!=this.spreads&&(this.spreads=spreads,this.layoutMethod=this.determineLayout(this.layoutSettings),this.layout=new EPUBJS.Layout[this.layoutMethod]),this.chapterPos=1,this.render.page(1),b.formated=b.layout.format(b.contents,b.render.width,b.render.height,b.gap),b.render.setPageDimensions(b.formated.pageWidth,b.formated.pageHeight),a=b.layout.calculatePages(),b.updatePages(a),b.currentLocationCfi&&b.gotoCfi(b.currentLocationCfi))},EPUBJS.Renderer.prototype.visible=function(a){return"undefined"==typeof a?this.element.style.visibility:void(a!==!0||this.hidden?a===!1&&(this.element.style.visibility="hidden"):this.element.style.visibility="visible")},EPUBJS.Renderer.prototype.remove=function(){this.render.window&&(this.render.unload(),this.render.window.removeEventListener("resize",this.resized),this.removeEventListeners(),this.removeSelectionListeners()),this.container.removeChild(this.element)},EPUBJS.Renderer.prototype.applyStyles=function(a){for(var b in a)this.render.setStyle(b,a[b])},EPUBJS.Renderer.prototype.setStyle=function(a,b,c){this.render.setStyle(a,b,c)},EPUBJS.Renderer.prototype.removeStyle=function(a){this.render.removeStyle(a)},EPUBJS.Renderer.prototype.applyHeadTags=function(a){for(var b in a)this.render.addHeadTag(b,a[b])},EPUBJS.Renderer.prototype.page=function(a){return this.pageMap?a>=1&&a<=this.displayedPages?(this.chapterPos=a,this.render.page(a),this.visibleRangeCfi=this.getVisibleRangeCfi(),this.currentLocationCfi=this.visibleRangeCfi.start,this.trigger("renderer:locationChanged",this.currentLocationCfi),this.trigger("renderer:visibleRangeChanged",this.visibleRangeCfi),!0):!1:(console.warn("pageMap not set, queuing"),this._q.enqueue("page",arguments),!0)},EPUBJS.Renderer.prototype.nextPage=function(){return this.page(this.chapterPos+1)},EPUBJS.Renderer.prototype.prevPage=function(){return this.page(this.chapterPos-1)},EPUBJS.Renderer.prototype.pageByElement=function(a){var b;a&&(b=this.render.getPageNumberByElement(a),this.page(b))},EPUBJS.Renderer.prototype.lastPage=function(){return this._moving?this._q.enqueue("lastPage",arguments):void this.page(this.displayedPages)},EPUBJS.Renderer.prototype.firstPage=function(){this.page(1)},EPUBJS.Renderer.prototype.section=function(a){var b=this.doc.getElementById(a);b&&this.pageByElement(b)},EPUBJS.Renderer.prototype.firstElementisTextNode=function(a){var b=a.childNodes,c=b.length;return c&&b[0]&&3===b[0].nodeType&&b[0].textContent.trim().length?!0:!1},EPUBJS.Renderer.prototype.walk=function(a,b,c){for(var d,e,f,g,h=a,i=[h],j=1e4,k=0;!d&&i.length;){if(a=i.shift(),this.containsPoint(a,b,c)&&this.firstElementisTextNode(a)&&(d=a),!d&&a&&a.childElementCount>0){if(e=a.children,!e||!e.length)return d;f=e.length?e.length:0;for(var l=f-1;l>=0;l--)e[l]!=g&&i.unshift(e[l])}if(!d&&0===i.length&&h&&null!==h.parentNode&&(i.push(h.parentNode),g=h,h=h.parentNode),k++,k>j){console.error("ENDLESS LOOP");break}}return d},EPUBJS.Renderer.prototype.containsPoint=function(a,b){var c;return a&&"function"==typeof a.getBoundingClientRect&&(c=a.getBoundingClientRect(),0!==c.width&&0!==c.height&&c.left>=b&&b<=c.left+c.width)?!0:!1},EPUBJS.Renderer.prototype.textSprint=function(a,b){for(var c,d=document.createTreeWalker(a,NodeFilter.SHOW_TEXT,{acceptNode:function(a){return/^\s*$/.test(a.data)?NodeFilter.FILTER_REJECT:NodeFilter.FILTER_ACCEPT}},!1);c=d.nextNode();)b(c)},EPUBJS.Renderer.prototype.sprint=function(a,b){for(var c,d=document.createTreeWalker(a,NodeFilter.SHOW_ELEMENT,null,!1);c=d.nextNode();)b(c)},EPUBJS.Renderer.prototype.mapPage=function(){var a,b,c=this,d=[],e=this.render.getBaseElement(),f=1,g=this.layout.colWidth+this.layout.gap,h=this.formated.pageWidth*(this.chapterPos-1),i=g*f-h,j=0,k=function(a){var b,c,d=Array.prototype.slice.call(a.childNodes);if(a.nodeType==Node.ELEMENT_NODE){if(c=document.createRange(),c.selectNodeContents(a),b=c.getBoundingClientRect(),!b||0===b.width&&0===b.height)return;b.left>j&&d.forEach(function(a){a.nodeType==Node.TEXT_NODE&&a.textContent.trim().length&&l(a)}),b.right>j&&d.forEach(function(a){a.nodeType==Node.TEXT_NODE&&a.textContent.trim().length&&l(a)})}},l=function(e){var k=c.splitTextNodeIntoWordsRanges(e);k.forEach(function(e){var k=e.getBoundingClientRect();!k||0===k.width&&0===k.height||(k.left+k.width<i?d[f-1]||(e.collapse(!0),b=c.currentChapter.cfiFromRange(e),d.push({start:b,end:null})):(a&&(a.collapse(!0),b=c.currentChapter.cfiFromRange(a),d[d.length-1].end=b),e.collapse(!0),b=c.currentChapter.cfiFromRange(e),d.push({start:b,end:null}),f+=1,i=g*f-h,j=i),a=e)})};return this.sprint(e,k),a&&(a.collapse(!0),b=c.currentChapter.cfiFromRange(a),d[d.length-1].end=b),d.length||(range=this.doc.createRange(),range.selectNodeContents(e),range.collapse(!0),b=c.currentChapter.cfiFromRange(range),d.push({start:b,end:b})),a=null,ranges=null,range=null,e=null,d},EPUBJS.Renderer.prototype.splitTextNodeIntoWordsRanges=function(a){var b,c=[],d=a.textContent.trim();if(pos=d.indexOf(" "),-1===pos)return b=this.doc.createRange(),b.selectNodeContents(a),[b];for(b=this.doc.createRange(),b.setStart(a,0),b.setEnd(a,pos),c.push(b),b=!1;-1!=pos;)pos=d.indexOf(" ",pos+1),pos>0&&(b&&(b.setEnd(a,pos),c.push(b)),b=this.doc.createRange(),b.setStart(a,pos+1));return b&&(b.setEnd(a,d.length),c.push(b)),c},EPUBJS.Renderer.prototype.rangePosition=function(a){var b,c;return c=a.getClientRects(),c.length?b=c[0]:null},EPUBJS.Renderer.prototype.getPageCfi=function(){var a;return this.spreads?(a=2*this.chapterPos,startRange=this.pageMap[a-2]):(a=this.chapterPos,startRange=this.pageMap[a-1]),this.pageMap[2*this.chapterPos-1].start},EPUBJS.Renderer.prototype.getRange=function(a,b,c){var d,e=this.doc.createRange();return c=!0,"undefined"==typeof document.caretPositionFromPoint||c?"undefined"==typeof document.caretRangeFromPoint||c?(this.visibileEl=this.findElementAfter(a,b),e.setStart(this.visibileEl,1)):e=this.doc.caretRangeFromPoint(a,b):(d=this.doc.caretPositionFromPoint(a,b),e.setStart(d.offsetNode,d.offset)),e},EPUBJS.Renderer.prototype.pagesInCurrentChapter=function(){var a,b;return this.pageMap?(b=this.pageMap.length,a=this.spreads?Math.ceil(b/2):b):(console.warn("page map not loaded"),!1)},EPUBJS.Renderer.prototype.currentRenderedPage=function(){var a;return this.pageMap?a=this.spreads&&this.layout.pageCount>1?2*this.chapterPos:this.chapterPos:(console.warn("page map not loaded"),!1)},EPUBJS.Renderer.prototype.getRenderedPagesLeft=function(){var a,b,c;return this.pageMap?(b=this.pageMap.length,a=this.spreads?2*this.chapterPos:this.chapterPos,c=b-a):(console.warn("page map not loaded"),!1)},EPUBJS.Renderer.prototype.getVisibleRangeCfi=function(){var a,b,c;return this.pageMap?(this.spreads?(a=2*this.chapterPos,b=this.pageMap[a-2],c=b,this.layout.pageCount>1&&(c=this.pageMap[a-1])):(a=this.chapterPos,b=this.pageMap[a-1],c=b),b||(console.warn("page range miss:",a,this.pageMap),b=this.pageMap[this.pageMap.length-1],c=b),{start:b.start,end:c.end}):(console.warn("page map not loaded"),!1)},EPUBJS.Renderer.prototype.gotoCfi=function(a){var b,c,d;return this._moving?this._q.enqueue("gotoCfi",arguments):(_.isString(a)&&(a=this.epubcfi.parse(a)),void("undefined"==typeof 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diff --git a/htdocs/static/js/inflate.js b/htdocs/static/js/inflate.js
new file mode 100644
index 0000000..5bf3eed
--- /dev/null
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f.bitb=O,f.bitk=P,v.avail_in=A,v.total_in+=Q-v.next_in_index,v.next_in_index=Q,f.write=B,f.inflate_flush(v,w);w=i,A--,O|=(255&v.read_byte(Q++))<<P,P+=8}q+=O&p[x],O>>=x,P-=x,b=H;case H:for(N=B-q;0>N;)N+=f.end;for(;0!==g;){if(0===M&&(B==f.end&&0!==f.read&&(B=0,M=B<f.read?f.read-B-1:f.end-B),0===M&&(f.write=B,w=f.inflate_flush(v,w),B=f.write,M=B<f.read?f.read-B-1:f.end-B,B==f.end&&0!==f.read&&(B=0,M=B<f.read?f.read-B-1:f.end-B),0===M)))return f.bitb=O,f.bitk=P,v.avail_in=A,v.total_in+=Q-v.next_in_index,v.next_in_index=Q,f.write=B,f.inflate_flush(v,w);f.window[B++]=f.window[N++],M--,N==f.end&&(N=0),g--}b=C;break;case I:if(0===M&&(B==f.end&&0!==f.read&&(B=0,M=B<f.read?f.read-B-1:f.end-B),0===M&&(f.write=B,w=f.inflate_flush(v,w),B=f.write,M=B<f.read?f.read-B-1:f.end-B,B==f.end&&0!==f.read&&(B=0,M=B<f.read?f.read-B-1:f.end-B),0===M)))return f.bitb=O,f.bitk=P,v.avail_in=A,v.total_in+=Q-v.next_in_index,v.next_in_index=Q,f.write=B,f.inflate_flush(v,w);w=i,f.window[B++]=n,M--,b=C;break;case J:if(P>7&&(P-=8,A++,Q--),f.write=B,w=f.inflate_flush(v,w),B=f.write,M=B<f.read?f.read-B-1:f.end-B,f.read!=f.write)return f.bitb=O,f.bitk=P,v.avail_in=A,v.total_in+=Q-v.next_in_index,v.next_in_index=Q,f.write=B,f.inflate_flush(v,w);b=K;case K:return w=j,f.bitb=O,f.bitk=P,v.avail_in=A,v.total_in+=Q-v.next_in_index,v.next_in_index=Q,f.write=B,f.inflate_flush(v,w);case L:return w=m,f.bitb=O,f.bitk=P,v.avail_in=A,v.total_in+=Q-v.next_in_index,v.next_in_index=Q,f.write=B,f.inflate_flush(v,w);default:return w=l,f.bitb=O,f.bitk=P,v.avail_in=A,v.total_in+=Q-v.next_in_index,v.next_in_index=Q,f.write=B,f.inflate_flush(v,w)}},f.free=function(){}}function d(a,d){var e,f=this,g=N,h=0,k=0,n=0,r=[0],s=[0],t=new c,u=0,v=new Int32Array(3*q),w=0,x=new b;f.bitk=0,f.bitb=0,f.window=new Uint8Array(d),f.end=d,f.read=0,f.write=0,f.reset=function(a,b){b&&(b[0]=w),g==T&&t.free(a),g=N,f.bitk=0,f.bitb=0,f.read=f.write=0},f.reset(a,null),f.inflate_flush=function(a,b){var c,d,e;return d=a.next_out_index,e=f.read,c=(e<=f.write?f.write:f.end)-e,c>a.avail_out&&(c=a.avail_out),0!==c&&b==o&&(b=i),a.avail_out-=c,a.total_out+=c,a.next_out.set(f.window.subarray(e,e+c),d),d+=c,e+=c,e==f.end&&(e=0,f.write==f.end&&(f.write=0),c=f.write-e,c>a.avail_out&&(c=a.avail_out),0!==c&&b==o&&(b=i),a.avail_out-=c,a.total_out+=c,a.next_out.set(f.window.subarray(e,e+c),d),d+=c,e+=c),a.next_out_index=d,f.read=e,b},f.proc=function(a,c){var d,o,q,w,y,z,A,B;for(w=a.next_in_index,y=a.avail_in,o=f.bitb,q=f.bitk,z=f.write,A=z<f.read?f.read-z-1:f.end-z;;)switch(g){case N:for(;3>q;){if(0===y)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);c=i,y--,o|=(255&a.read_byte(w++))<<q,q+=8}switch(d=7&o,u=1&d,d>>>1){case 0:o>>>=3,q-=3,d=7&q,o>>>=d,q-=d,g=O;break;case 1:var C=[],D=[],E=[[]],F=[[]];b.inflate_trees_fixed(C,D,E,F),t.init(C[0],D[0],E[0],0,F[0],0),o>>>=3,q-=3,g=T;break;case 2:o>>>=3,q-=3,g=Q;break;case 3:return o>>>=3,q-=3,g=W,a.msg="invalid block type",c=m,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c)}break;case O:for(;32>q;){if(0===y)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);c=i,y--,o|=(255&a.read_byte(w++))<<q,q+=8}if((~o>>>16&65535)!=(65535&o))return g=W,a.msg="invalid stored block lengths",c=m,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);h=65535&o,o=q=0,g=0!==h?P:0!==u?U:N;break;case P:if(0===y)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);if(0===A&&(z==f.end&&0!==f.read&&(z=0,A=z<f.read?f.read-z-1:f.end-z),0===A&&(f.write=z,c=f.inflate_flush(a,c),z=f.write,A=z<f.read?f.read-z-1:f.end-z,z==f.end&&0!==f.read&&(z=0,A=z<f.read?f.read-z-1:f.end-z),0===A)))return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);if(c=i,d=h,d>y&&(d=y),d>A&&(d=A),f.window.set(a.read_buf(w,d),z),w+=d,y-=d,z+=d,A-=d,0!==(h-=d))break;g=0!==u?U:N;break;case Q:for(;14>q;){if(0===y)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);c=i,y--,o|=(255&a.read_byte(w++))<<q,q+=8}if(k=d=16383&o,(31&d)>29||(d>>5&31)>29)return g=W,a.msg="too many length or distance symbols",c=m,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);if(d=258+(31&d)+(d>>5&31),!e||e.length<d)e=[];else for(B=0;d>B;B++)e[B]=0;o>>>=14,q-=14,n=0,g=R;case R:for(;4+(k>>>10)>n;){for(;3>q;){if(0===y)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);c=i,y--,o|=(255&a.read_byte(w++))<<q,q+=8}e[M[n++]]=7&o,o>>>=3,q-=3}for(;19>n;)e[M[n++]]=0;if(r[0]=7,d=x.inflate_trees_bits(e,r,s,v,a),d!=i)return c=d,c==m&&(e=null,g=W),f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);n=0,g=S;case S:for(;;){if(d=k,!(258+(31&d)+(d>>5&31)>n))break;var G,H;for(d=r[0];d>q;){if(0===y)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);c=i,y--,o|=(255&a.read_byte(w++))<<q,q+=8}if(d=v[3*(s[0]+(o&p[d]))+1],H=v[3*(s[0]+(o&p[d]))+2],16>H)o>>>=d,q-=d,e[n++]=H;else{for(B=18==H?7:H-14,G=18==H?11:3;d+B>q;){if(0===y)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);c=i,y--,o|=(255&a.read_byte(w++))<<q,q+=8}if(o>>>=d,q-=d,G+=o&p[B],o>>>=B,q-=B,B=n,d=k,B+G>258+(31&d)+(d>>5&31)||16==H&&1>B)return e=null,g=W,a.msg="invalid bit length repeat",c=m,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);H=16==H?e[B-1]:0;do e[B++]=H;while(0!==--G);n=B}}s[0]=-1;var I=[],J=[],K=[],L=[];if(I[0]=9,J[0]=6,d=k,d=x.inflate_trees_dynamic(257+(31&d),1+(d>>5&31),e,I,J,K,L,v,a),d!=i)return d==m&&(e=null,g=W),c=d,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);t.init(I[0],J[0],v,K[0],v,L[0]),g=T;case T:if(f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,(c=t.proc(f,a,c))!=j)return f.inflate_flush(a,c);if(c=i,t.free(a),w=a.next_in_index,y=a.avail_in,o=f.bitb,q=f.bitk,z=f.write,A=z<f.read?f.read-z-1:f.end-z,0===u){g=N;break}g=U;case U:if(f.write=z,c=f.inflate_flush(a,c),z=f.write,A=z<f.read?f.read-z-1:f.end-z,f.read!=f.write)return f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);g=V;case V:return c=j,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);case W:return c=m,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c);default:return c=l,f.bitb=o,f.bitk=q,a.avail_in=y,a.total_in+=w-a.next_in_index,a.next_in_index=w,f.write=z,f.inflate_flush(a,c)}},f.free=function(a){f.reset(a,null),f.window=null,v=null},f.set_dictionary=function(a,b,c){f.window.set(a.subarray(b,b+c),0),f.read=f.write=c},f.sync_point=function(){return g==O?1:0}}function e(){function a(a){return a&&a.istate?(a.total_in=a.total_out=0,a.msg=null,a.istate.mode=eb,a.istate.blocks.reset(a,null),i):l}var b=this;b.mode=0,b.method=0,b.was=[0],b.need=0,b.marker=0,b.wbits=0,b.inflateEnd=function(a){return b.blocks&&b.blocks.free(a),b.blocks=null,i},b.inflateInit=function(c,e){return c.msg=null,b.blocks=null,8>e||e>15?(b.inflateEnd(c),l):(b.wbits=e,c.istate.blocks=new d(c,1<<e),a(c),i)},b.inflate=function(a,b){var c,d;if(!a||!a.istate||!a.next_in)return l;for(b=b==s?o:i,c=o;;)switch(a.istate.mode){case Z:if(0===a.avail_in)return c;if(c=b,a.avail_in--,a.total_in++,(15&(a.istate.method=a.read_byte(a.next_in_index++)))!=Y){a.istate.mode=gb,a.msg="unknown compression method",a.istate.marker=5;break}if((a.istate.method>>4)+8>a.istate.wbits){a.istate.mode=gb,a.msg="invalid window size",a.istate.marker=5;break}a.istate.mode=$;case $:if(0===a.avail_in)return c;if(c=b,a.avail_in--,a.total_in++,d=255&a.read_byte(a.next_in_index++),((a.istate.method<<8)+d)%31!==0){a.istate.mode=gb,a.msg="incorrect header check",a.istate.marker=5;break}if(0===(d&X)){a.istate.mode=eb;break}a.istate.mode=_;case _:if(0===a.avail_in)return c;c=b,a.avail_in--,a.total_in++,a.istate.need=(255&a.read_byte(a.next_in_index++))<<24&4278190080,a.istate.mode=ab;case ab:if(0===a.avail_in)return c;c=b,a.avail_in--,a.total_in++,a.istate.need+=(255&a.read_byte(a.next_in_index++))<<16&16711680,a.istate.mode=bb;case bb:if(0===a.avail_in)return c;c=b,a.avail_in--,a.total_in++,a.istate.need+=(255&a.read_byte(a.next_in_index++))<<8&65280,a.istate.mode=cb;case cb:return 0===a.avail_in?c:(c=b,a.avail_in--,a.total_in++,a.istate.need+=255&a.read_byte(a.next_in_index++),a.istate.mode=db,k);case db:return a.istate.mode=gb,a.msg="need dictionary",a.istate.marker=0,l;case eb:if(c=a.istate.blocks.proc(a,c),c==m){a.istate.mode=gb,a.istate.marker=0;break}if(c==i&&(c=b),c!=j)return c;c=b,a.istate.blocks.reset(a,a.istate.was),a.istate.mode=fb;case fb:return j;case gb:return m;default:return l}},b.inflateSetDictionary=function(a,b,c){var d=0,e=c;return a&&a.istate&&a.istate.mode==db?(e>=1<<a.istate.wbits&&(e=(1<<a.istate.wbits)-1,d=c-e),a.istate.blocks.set_dictionary(b,d,e),a.istate.mode=eb,i):l},b.inflateSync=function(b){var c,d,e,f,g;if(!b||!b.istate)return l;if(b.istate.mode!=gb&&(b.istate.mode=gb,b.istate.marker=0),0===(c=b.avail_in))return o;for(d=b.next_in_index,e=b.istate.marker;0!==c&&4>e;)b.read_byte(d)==hb[e]?e++:e=0!==b.read_byte(d)?0:4-e,d++,c--;return b.total_in+=d-b.next_in_index,b.next_in_index=d,b.avail_in=c,b.istate.marker=e,4!=e?m:(f=b.total_in,g=b.total_out,a(b),b.total_in=f,b.total_out=g,b.istate.mode=eb,i)},b.inflateSyncPoint=function(a){return a&&a.istate&&a.istate.blocks?a.istate.blocks.sync_point():l}}function f(){}function g(){var a=this,b=new f,c=512,d=r,e=new Uint8Array(c),g=!1;b.inflateInit(),b.next_out=e,a.append=function(a,f){var h,k,l=[],m=0,n=0,p=0;if(0!==a.length){b.next_in_index=0,b.next_in=a,b.avail_in=a.length;do{if(b.next_out_index=0,b.avail_out=c,0!==b.avail_in||g||(b.next_in_index=0,g=!0),h=b.inflate(d),g&&h==o)return-1;if(h!=i&&h!=j)throw"inflating: "+b.msg;if((g||h==j)&&b.avail_in==a.length)return-1;b.next_out_index&&l.push(b.next_out_index==c?new Uint8Array(e):new Uint8Array(e.subarray(0,b.next_out_index))),p+=b.next_out_index,f&&b.next_in_index>0&&b.next_in_index!=m&&(f(b.next_in_index),m=b.next_in_index)}while(b.avail_in>0||0===b.avail_out);return k=new Uint8Array(p),l.forEach(function(a){k.set(a,n),n+=a.length}),k}},a.flush=function(){b.inflateEnd()}}var 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a[0]=t,b[0]=u,c[0]=v,d[0]=w,i};var C=0,D=1,E=2,F=3,G=4,H=5,I=6,J=7,K=8,L=9,M=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],N=0,O=1,P=2,Q=3,R=4,S=5,T=6,U=7,V=8,W=9,X=32,Y=8,Z=0,$=1,_=2,ab=3,bb=4,cb=5,db=6,eb=7,fb=12,gb=13,hb=[0,0,255,255];f.prototype={inflateInit:function(a){var b=this;return b.istate=new e,a||(a=h),b.istate.inflateInit(b,a)},inflate:function(a){var b=this;return b.istate?b.istate.inflate(b,a):l},inflateEnd:function(){var a=this;if(!a.istate)return l;var b=a.istate.inflateEnd(a);return a.istate=null,b},inflateSync:function(){var a=this;return a.istate?a.istate.inflateSync(a):l},inflateSetDictionary:function(a,b){var c=this;return c.istate?c.istate.inflateSetDictionary(c,a,b):l},read_byte:function(a){var b=this;return b.next_in.subarray(a,a+1)[0]},read_buf:function(a,b){var c=this;return c.next_in.subarray(a,a+b)}};var ib;a.zip?a.zip.Inflater=g:(ib=new g,a.addEventListener("message",function(b){var c=b.data;c.append&&a.postMessage({onappend:!0,data:ib.append(c.data,function(b){a.postMessage({progress:!0,current:b})})}),c.flush&&(ib.flush(),a.postMessage({onflush:!0}))},!1))}(this);
+//# sourceMappingURL=inflate.map
\ No newline at end of file
diff --git a/htdocs/static/js/zip.min.js b/htdocs/static/js/zip.min.js
new file mode 100644
index 0000000..0e9ec88
--- /dev/null
+++ b/htdocs/static/js/zip.min.js
@@ -0,0 +1,30 @@
+/*!
+ Copyright (c) 2013 Gildas Lormeau. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the distribution.
+
+ 3. The names of the authors may not be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
+ INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
+ INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+!function(a){function b(){var a=-1,b=this;b.append=function(c){var d,e=b.table;for(d=0;d<c.length;d++)a=a>>>8^e[255&(a^c[d])]},b.get=function(){return~a}}function c(a,b,c){return a.slice?a.slice(b,b+c):a.webkitSlice?a.webkitSlice(b,b+c):a.mozSlice?a.mozSlice(b,b+c):a.msSlice?a.msSlice(b,b+c):void 0}function d(a,b){var c,d;return c=new ArrayBuffer(a),d=new Uint8Array(c),b&&d.set(b,0),{buffer:c,array:d,view:new DataView(c)}}function e(){}function f(a){function b(b,c){var f=new Blob([a],{type:M});d=new h(f),d.init(function(){e.size=d.size,b()},c)}function c(a,b,c,e){d.readUint8Array(a,b,c,e)}var d,e=this;e.size=0,e.init=b,e.readUint8Array=c}function g(b){function c(a){for(var c=b.length;"="==b.charAt(c-1);)c--;f=b.indexOf(",")+1,g.size=Math.floor(.75*(c-f)),a()}function e(c,e,g){var h,i=d(e),j=4*Math.floor(c/3),k=4*Math.ceil((c+e)/3),l=a.atob(b.substring(j+f,k+f)),m=c-3*Math.floor(j/4);for(h=m;m+e>h;h++)i.array[h-m]=l.charCodeAt(h);g(i.array)}var 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--- a/htdocs/templates/_head.html
+++ b/htdocs/templates/_head.html
@@ -2,11 +2,10 @@
 <html lang="en">
   <head>
     <title>LIBER</title>
-
+    <meta charset="utf-8">
     <link rel="shortcut icon" href="/static/favicon.ico">
     <link rel="stylesheet" href="/static/css/bootstrap.min.css">
     <link rel="stylesheet" href="/static/css/liber.css">
-    
   </head>
 
   <body>
diff --git a/htdocs/templates/book.html b/htdocs/templates/book.html
index b6d8d8c..3e86cf5 100644
--- a/htdocs/templates/book.html
+++ b/htdocs/templates/book.html
@@ -41,6 +41,15 @@
     </p>
     {{end}}
 
+    {{if .HasEpub}}
+    <p>
+      <a class="btn btn-large btn-primary"
+         href="/read/{{.Book.Id}}/{{.EpubIndex}}">
+        Read Online
+      </a>
+    </p>
+    {{end}}
+
   </div>
 
 </div>
diff --git a/htdocs/templates/reader.html b/htdocs/templates/reader.html
new file mode 100644
index 0000000..5849661
--- /dev/null
+++ b/htdocs/templates/reader.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>
+      LIBER - "{{.Book.Metadata.Title}}"
+    </title>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width">
+    <meta name="apple-mobile-web-app-capable" content="yes">
+    <link rel="shortcut icon" href="/static/favicon.ico">
+    <link rel="stylesheet" href="/static/css/reader.css">
+  </head>
+
+  <body>
+    <div id="main">
+      <div id="prev" class="arrow">‹</div>
+      <div id="area"></div>
+      <div id="next" class="arrow">›</div>
+    </div>
+
+    <script src="/static/js/jquery-2.1.1.min.js"></script>
+    <script src="/static/js/epub.min.js"></script>
+    <script src="/static/js/zip.min.js"></script>
+
+    <script>
+EPUBJS.filePath = "/static/js/";
+
+$(function() {
+  var Book = ePub("/dl/{{.Book.Id}}/{{.FileIndex}}",
+                  {restore: true, contained: true});
+  $("#prev").click(function() { Book.prevPage(); });
+  $("#next").click(function() { Book.nextPage(); });
+  $(window).keydown(function(event) {
+    //console.log('keydown(): ' + event.which);
+    if (event.which == 33 || event.which == 37 || event.which == 38) {
+      Book.prevPage();
+    } else if (event.which == 32 || event.which == 34 || event.which == 39 || event.which == 40) {
+      Book.nextPage();
+    }
+  });
+
+  Book.renderTo("area");
+});
+    </script>
+  </body>
+</html>
+
diff --git a/web.go b/web.go
index 52a901b..c2e18d6 100644
--- a/web.go
+++ b/web.go
@@ -141,6 +141,38 @@ func (s *uiServer) withBook(f func(*Book, http.ResponseWriter, *http.Request)) h
 	})
 }
 
+func (s *uiServer) withFile(f func(*Book, *File, int, http.ResponseWriter, *http.Request)) http.HandlerFunc {
+	return s.withBook(func(book *Book, w http.ResponseWriter, req *http.Request) {
+		vars := mux.Vars(req)
+		fileIndex, err := strconv.Atoi(vars["fid"])
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		files, err := s.db.GetBookFiles(book.Id)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		if fileIndex < 0 || fileIndex >= len(files) {
+			http.NotFound(w, req)
+			return
+		}
+
+		f(book, files[fileIndex], fileIndex, w, req)
+	})
+}
+
+func findEpub(files []*File) int {
+	for i, f := range files {
+		if f.FileType == ".epub" {
+			return i
+		}
+	}
+	return -1
+}
+
 func (s *uiServer) handleShowBook(book *Book, w http.ResponseWriter, req *http.Request) {
 	files, err := s.db.GetBookFiles(book.Id)
 	if err != nil {
@@ -149,6 +181,9 @@ func (s *uiServer) handleShowBook(book *Book, w http.ResponseWriter, req *http.R
 		return
 	}
 
+	// Only offer the online reader if we have an EPUB file.
+	epubIndex := findEpub(files)
+
 	// The book's Description, if present, should be rendered
 	// directly as HTML. So we deal with it separately.
 	ctx := struct {
@@ -156,34 +191,43 @@ func (s *uiServer) handleShowBook(book *Book, w http.ResponseWriter, req *http.R
 		Book        *Book
 		Files       []*File
 		Description template.HTML
+		HasEpub     bool
+		EpubIndex   int
 	}{
 		Book:        book,
 		Files:       files,
 		Description: template.HTML(book.Metadata.Description),
+		HasEpub:     (epubIndex >= 0),
+		EpubIndex:   epubIndex,
 	}
 	render("book.html", w, &ctx)
 }
 
+func (s *uiServer) handleReadBook(book *Book, file *File, fileIndex int, w http.ResponseWriter, req *http.Request) {
+	if file.FileType != ".epub" {
+		http.NotFound(w, req)
+		return
+	}
+
+	ctx := struct {
+		Book      *Book
+		File      *File
+		FileIndex int
+	}{
+		Book:      book,
+		File:      file,
+		FileIndex: fileIndex,
+	}
+	render("reader.html", w, &ctx)
+}
+
 var contentTypeMap = map[string]string{
 	".epub": "application/epub+zip",
 	".mobi": "application/octet-stream",
 	".pdf":  "application/pdf",
 }
 
-func (s *uiServer) handleDownloadBook(book *Book, w http.ResponseWriter, req *http.Request) {
-	idx, _ := strconv.Atoi(mux.Vars(req)["n"])
-
-	files, err := s.db.GetBookFiles(book.Id)
-	if err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
-		return
-	}
-	if idx < 0 || idx >= len(files) {
-		http.NotFound(w, req)
-		return
-	}
-	file := files[idx]
-
+func (s *uiServer) handleDownloadBook(book *Book, file *File, fileIndex int, w http.ResponseWriter, req *http.Request) {
 	f, err := s.storage.Open(file.Path)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -289,7 +333,8 @@ func NewHttpServer(db *Database, storage, cache *FileStorage, addr string) *http
 	r.Handle("/book/cover/{id:[0-9]+}", uisrv.withBook(uisrv.handleShowCover))
 	r.Handle("/book/thumb/{id:[0-9]+}", uisrv.withBook(uisrv.handleShowThumbnail))
 	r.Handle("/book/{id:[0-9]+}", uisrv.withBook(uisrv.handleShowBook))
-	r.Handle("/dl/{id:[0-9]+}/{n:[0-9]+}", uisrv.withBook(uisrv.handleDownloadBook))
+	r.Handle("/read/{id:[0-9]+}/{fid:[0-9]+}", uisrv.withFile(uisrv.handleReadBook))
+	r.Handle("/dl/{id:[0-9]+}/{fid:[0-9]+}", uisrv.withFile(uisrv.handleDownloadBook))
 	r.HandleFunc("/suggest", uisrv.handleAutocomplete)
 	r.HandleFunc("/search", uisrv.handleSearch)
 	r.HandleFunc("/", uisrv.handleHome)
-- 
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