antosdk-apps/Docify/api/api.lua

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local arg = ...
ulib = require("ulib")
vfs = require("vfs")
local handle = {}
local docpath = nil
local result = function(data)
return {
error = false,
result = data
}
end
local error = function(data)
return {
error = data,
result = false
}
end
local mkdirp =function(p)
if not vfs.exists(p) then
if not vfs.mkdir(p) then
return false, error("Unable to create directory: "..p)
end
end
return true, nil
end
handle.merge_files = function(data)
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local firstfile = data.file[1]
local fpath = docpath.."/"..data.cid
local r, e = mkdirp(fpath)
if not r then return e end
fpath = fpath.."/"..os.date("%d-%m-%Y_%H_%M_%S")..".pdf"
-- concat the files
if #data.file > 1 then
local cmd = "gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile="..vfs.ospath(fpath)
for i,v in ipairs(data.file) do
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cmd = cmd.." \""..vfs.ospath(v).."\""
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end
os.execute(cmd)
if not vfs.exists(fpath) then
return error("Unable to merge PDF files")
end
cmd = "chmod 777 "..vfs.ospath(fpath)
os.execute(cmd)
else
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local cmd = "mv \""..vfs.ospath(firstfile).."\" \""..vfs.ospath(fpath).."\""
os.execute(cmd)
if not vfs.exists(fpath) then
return error("Unable to move PDF file")
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end
end
-- move the thumb file to the cache folder
local thumb = docpath.."/cache/"..enc.sha1(firstfile:gsub(docpath, ""))..".png"
local desthumb = docpath.."/cache/"..enc.sha1(fpath:gsub(docpath, ""))..".png"
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if vfs.exists(thumb) then
vfs.move(thumb, desthumb)
end
-- remove all other thumb files
for i,v in ipairs(data.file) do
thumb = docpath.."/cache/"..enc.sha1(v:gsub(docpath, ""))..".png"
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if vfs.exists(thumb) then
vfs.delete(thumb)
end
-- delete all files
if vfs.exists(v) then
vfs.delete(v)
end
end
return result(fpath)
end
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handle.preview = function(path)
-- convert -resize 300x500 noel.pdf[0] thumb.png
local name = enc.sha1(path:gsub(docpath,""))..".png"
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-- try to find the thumb
local tpath = docpath.."/cache/"..name
if not vfs.exists(tpath) then
-- regenerate thumb
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local cmd = "convert -resize 250x500 \""..vfs.ospath(path).."\"[0] "..vfs.ospath(tpath)
LOG_ERROR(cmd)
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os.execute(cmd)
end
if vfs.exists(tpath) then
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local cmd = "chmod 777 "..vfs.ospath(tpath)
os.execute(cmd)
return result(tpath)
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else
return error("do not exist")
end
end
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handle.deletedoc = function(param)
-- move file to unclassified
local newfile = docpath.."/unclassified/"..utils.basename(param.file)
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vfs.move(param.file, newfile)
-- delete thumb file
local thumb = docpath.."/cache/"..enc.sha1(param.file:gsub(docpath,""))..".png"
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if vfs.exists(thumb) then
vfs.delete(thumb)
end
return result("Document entry deleted")
end
handle.updatedoc = function(param)
local r = handle.merge_files(param.data)
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if r.error then return r end
if param.rm then
-- move ve the old file to unclassified
local newfile = docpath.."/unclassified/"..utils.basename(param.rm)
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local cmd = "rm -f "..vfs.ospath(param.rm)
os.execute(cmd)
--if vfs.exists(param.rm) then
-- vfs.move(param.rm, newfile)
--end
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-- move the thumb file if needed
local thumb = docpath.."/cache/"..enc.sha1(param.rm:gsub(docpath,""))..".png"
local newwthumb = docpath.."/cache/"..enc.sha1(newfile:gsub(docpath, ""))..".png"
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if vfs.exists(thumb) then
vfs.move(thumb, newwthumb)
end
end
param.data.file = r.result
print(r.result)
param.data.mtime = os.time(os.date("!*t"))
return result(param.data)
--return handle.update({
-- table = "docs",
-- data = param.data
--})
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end
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if arg.action and handle[arg.action] then
-- check if the database exits
docpath = arg.docpath
return handle[arg.action](arg.args)
else
return error("Invalid action parameter")
end