socialforge/app/controllers/avatar_controller.rb

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class AvatarController < ApplicationController
include ActionView::Helpers::NumberHelper
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#before_filter :set_cache_buster
include AvatarHelper
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def upload
# Make sure that API users get used to set this content type
# as it won't trigger Rails' automatic parsing of the request body for parameters
unless request.content_type == 'application/octet-stream'
@source_type = params[:source_type]
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@source_id = params[:source_id]
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@temp_file = params[:avatar][:image]
@image_file = @temp_file.original_filename
else
unless request.raw_post.nil?
@source_type = params[:source_type]
@source_id = params[:source_id]
@temp_file = request.raw_post
if @temp_file.size > 0
if @temp_file.respond_to?(:original_filename)
@image_file = @temp_file.original_filename
#image_file.force_encoding("UTF-8") if filename.respond_to?(:force_encoding)
else
@image_file=params[:filename]
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end
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@temp_file = StringIO.new(@temp_file)
end
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end
end
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if @temp_file && (@temp_file.size > 0)
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if @temp_file.size > Setting.upload_avatar_max_size.to_i
@status = 1
@msg = l(:error_upload_avatar_to_large, :max_size => number_to_human_size(Setting.upload_avatar_max_size.to_i))
elsif Trustie::Utils::Image.new(@temp_file).image?
diskfile=disk_filename(@source_type,@source_id)
@urlfile='/' << File.join("images","avatars",avatar_directory(@source_type),avatar_filename(@source_id,@image_file))
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# 用户头像上传时进行特别处理
if @source_type == 'User'
diskfile += "temp"
@urlfile += "temp"
end
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logger.info("Saving avatar '#{diskfile}' (#{@temp_file.size} bytes)")
path = File.dirname(diskfile)
unless File.directory?(path)
FileUtils.mkdir_p(path)
end
md5 = Digest::MD5.new
File.open(diskfile, "wb") do |f|
if @temp_file.respond_to?(:read)
@temp_file.rewind
buffer = ""
while (buffer = @temp_file.read(8192))
f.write(buffer)
md5.update(buffer)
end
else
f.write(@temp_file)
md5.update(@temp_file)
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end
end
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Trustie::Utils::Image.new(diskfile,true).compress(300)
@status = 0
@msg = ''
else
@status = 2
@msg = l(:not_valid_image_file)
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end
end
@temp_file = nil
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respond_to do |format|
format.json{
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render :inline => {status: @status, message:@msg, url:"#{@urlfile.to_s}?#{Time.now.to_i}"}.to_json,:content_type => 'text/html'
return
}
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format.js
format.api {
if saved
render :action => 'upload', :status => :created
else
render_validation_errors(@avatar)
end
}
end
end
#add by zjc
#删除图片
def delete_image
@source_type = params[:source_type]
@source_id = params[:source_id]
@source = nil #eval(@source_type).find(@source_id)
c = Object.const_get(@source_type)
if c.respond_to?(:find)
@source = c.find(@source_id)
end
diskfile=disk_filename(@source_type,@source_id)
unless diskfile.nil? || diskfile == ""
path = File.dirname(diskfile)
if File.directory?(path) && File.exist?(diskfile)
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# 用户头像进行特别处理
if @source_type == 'User'
diskfile1 = diskfile + 'temp'
File.open(diskfile1, "wb") do |f|
buffer = "DELETE"
f.write(buffer)
end
else
File.delete(diskfile)
end
end
end
rescue e do
logger.info e.message
end
respond_to do |format|
format.js
format.api {
if saved
render :action => 'upload', :status => :created
else
render_validation_errors(@avatar)
end
}
end
end
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private
def set_cache_buster
response.headers["Cache-Control"] = "no-cache, no-store, max-age=0, must-revalidate"
response.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "Fri, 01 Jan 1990 00:00:00 GMT"
end
end