Merge pull request #9 from lxsang/master

support for local media

doc/assets/style.css

@@ -297,3 +297,9 @@ td.hljs-ln-numbers {
 .hljs-ln td.hljs-ln-code {
 	padding-left: 10px;
 }
+
+model-viewer{
+    /*border: 1px solid #333f67;*/
+    width: 100%;
+    height: 350px;
+}

doc/controllers/doccontroller.lua

@@ -1,9 +1,44 @@
 BaseController:subclass("DocController")
 
 local getpath = function(vfspath, controller)
-    return vfspath:gsub(controller.path_map.vfs_path, controller.path_map.local_path)
+    return vfspath:gsub(controller.path_map.vfs_path,
+                        controller.path_map.local_path)
 end
 
+local pre_process_md = function(str, obj)
+    local content = str
+    for capture in str:gmatch("(%[%[@book:image:[^\n%]]*%]%])") do
+        local apath = capture:match("%[%[@book:image:([^\n%]]*)%]%]")
+        local pattern = capture:gsub("%[", "%%["):gsub("%]", "%%]")
+        if apath then
+            apath = apath:gsub(" ", "%%%%20")
+            print(apath)
+            content = str:gsub(pattern,
+                               "![](" .. HTTP_ROOT .. "/" .. obj.name ..
+                                   "/asset/" .. apath .. ")")
+        end
+    end
+    return content
+end
+
+local post_process_md = function(str, obj)
+    local content = str
+    local has_model = false
+    for capture in str:gmatch("(%[%[@book:3dmodel:[^\n%]]*%]%])") do
+        local apath = capture:match("%[%[@book:3dmodel:([^\n%]]*)%]%]")
+        local pattern = capture:gsub("%[", "%%["):gsub("%]", "%%]")
+        if apath then
+            --apath = utils.urlencode(apath):gsub("%%", "%%%%")
+            apath = apath:gsub(" ", "%%20")
+            content = str:gsub(pattern,
+                               "<model-viewer src=\"" .. HTTP_ROOT .. "/" ..
+                                   obj.name .. "/asset/" .. apath ..
+                                   "\" auto-rotate camera-controls></model-viewer>")
+            has_model = true
+        end
+    end
+    return content, has_model
+end
 function DocController:loadTOC()
     local path = self.path_map.local_path .. "/meta.json"
     local result = {error = false}
@@ -38,7 +73,8 @@ function DocController:loadTOC()
                             local spath = getpath(vs.path, self) .. "/meta.json"
                             local smeta = JSON.decodeFile(spath)
                             if smeta then
-                                local section = {
+                                local section =
+                                    {
                                         name = smeta.name,
                                         path = vs.path .. "/INTRO.md",
                                         tpath = vs.path,
@@ -55,8 +91,10 @@ function DocController:loadTOC()
                                         local line = io.read()
                                         io.close()
                                         if line then
-                                            local file = {
-                                                name = std.trim(std.trim(line, "#"), " "),
+                                            local file =
+                                                {
+                                                    name = std.trim(
+                                                        std.trim(line, "#"), " "),
                                                     path = vf.path,
                                                     tpath = vf.path,
                                                     parent = section,
@@ -104,16 +142,19 @@ function DocController:index(...)
         path = self.path_map.local_path .. "/INTRO.md"
     end
     if path and ulib.exists(path) then
+        local has_3d = false
         local file = io.open(path, "r")
         local content = ""
         local md = require("md")
-        local callback = function(s)
-            content = content..s
-        end
-        md.to_html(file:read("*a"), callback)
+        local callback = function(s) content = content .. s end
+        md.to_html(pre_process_md(file:read("*a"), self), callback)
         file.close()
+        content, has_3d = post_process_md(content, self)
+        -- replace some display plugins
+
         self.template:setView("index", "index")
         self.template:set("data", content)
+        self.template:set("has_3d", has_3d)
     else
         self.template:setView("notfound", "index")
     end
@@ -150,7 +191,9 @@ function DocController:search(...)
                     end
                     local content = line:gsub("^[^:]*:", ""):lower()
                     for k, p in ipairs(patterns) do
-                        content = content:gsub(p, "<span class='pattern'>"..p.."</span>")
+                        content = content:gsub(p,
+                                               "<span class='pattern'>" .. p ..
+                                                   "</span>")
                     end
                     table.insert(result[file], content)
                 end
@@ -170,15 +213,32 @@ function DocController:search(...)
     return true
 end
 
+function DocController:asset(...)
+    local args = {...}
+    if #args == 0 then return self:actionnotfound(table.unpack(args)) end
+
+    local path = self.path_map.local_path .. "/" .. implode(args, DIR_SEP)
+
+    if self.registry.fileaccess and ulib.exists(path) then
+        local mime = std.mimeOf(path)
+        print(mime)
+        if POLICY.mimes[mime] then
+            std.sendFile(path)
+        else
+            self:error("Access forbidden: " .. path)
+        end
+    else
+        self:error("Asset file not found or access forbidden: " .. path)
+    end
+    return false
+end
 function DocController:api(...)
     local args = {...}
     if not self.path_map.api_path then
         return self:actionnotfound(table.unpack(args))
     end
     local rpath = "index.html"
-    if #args ~= 0 then
-        rpath = implode(args,"/")
-    end
+    if #args ~= 0 then rpath = implode(args, "/") end
     local path = self.path_map.api_path .. "/" .. rpath
 
     if ulib.exists(path) then

doc/router.lua

@@ -22,6 +22,8 @@ POST_LIMIT = 10
 -- require needed library
 require(BASE_FRW.."silk.api")
 
+POLICY.mimes["model/gltf-binary"] = true
+
 if REQUEST.r then
     REQUEST.r = REQUEST.r:gsub("%:", "/")
 end

doc/views/default/layout.ls

@@ -1,6 +1,7 @@
 <?lua
 local tocdata = __main__:get("toc")
 local elinks = __main__:get("elinks")
+local has_3d = __main__:get("has_3d")
 ?>
 <!DOCTYPE html>
 <html>
@@ -13,10 +14,14 @@ local elinks = __main__:get("elinks")
             rel="stylesheet"
             type="text/css"
             href="<?=HTTP_ROOT?>/rst/katex/katex.min.css" />
-        <!--script
-            type="text/javascript"
-            src="<?=HTTP_ROOT?>/rst/gscripts/showdown.min.js"
-        ></script-->
+        <?lua
+            if has_3d then
+        ?>
+        <script type="module" src="https://unpkg.com/@google/model-viewer/dist/model-viewer.min.js"></script>
+        <script nomodule src="https://unpkg.com/@google/model-viewer/dist/model-viewer-legacy.js"></script>
+        <?lua
+            end
+        ?>
         <script
             src="<?=HTTP_ROOT?>/rst/hljs/highlight.pack.js"
         ></script>

mimes.json

@@ -19,5 +19,9 @@
     "wasm": {
         "mime": "application/wasm",
         "binary": true
+    },
+    "glb": {
+        "mime": "model/gltf-binary",
+        "binary": true
     }
 }