验证码图像在我的生产环境中不起作用，但开发正常

Question

我在本地计算机(OSX 10.6.6,Rails3.0.1,WEBrick)中编写了一个 Rails 应用程序。简单的验证码效果很好。当我将应用程序推送到我的网络服务器（Centos5.5，Rails 3.0.1，Phusion Passenger版本3.0.2）时，没有发现错误，但图像不显示在网站中。

我注意到 /tmp 有一些文件，例如 simple_captcha20110324-19769-1bf4hah.jpg。我在我的服务器中打开它，图像是验证码图像。所以我认为验证码生成是有效的，但在生产环境中出现了问题。我跟踪该过程并发现ioctl(27, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fffc3fad550) = -1 ENOTTY（不适合设备的ioctl）。您有什么建议吗？

strace 信息：

...
stat("/tmp/simple_captcha20110324-3073-14fnzd6.jpg", {st_mode=S_IFREG|0600, st_size=1808, ...}) = 0
stat("/tmp/simple_captcha20110324-3073-14fnzd6.jpg", {st_mode=S_IFREG|0600, st_size=1808, ...}) = 0
geteuid()                               = 500
getegid()                               = 500
getuid()                                = 500
getgid()                                = 500
access("/tmp/simple_captcha20110324-3073-14fnzd6.jpg", R_OK) = 0
open("/tmp/simple_captcha20110324-3073-14fnzd6.jpg", O_RDONLY) = 27
ioctl(27, SNDCTL_TMR_TIMEBASE or TCGETS, 0x7fffc3fad550) = -1 ENOTTY (Inappropriate ioctl for device)
brk(0x63b0000)                          = 0x63b0000
write(3, "\n\nStarted GET \"/simple_captcha/e"..., 133) = 133
clock_gettime(CLOCK_REALTIME, {1300937319, 188732000}) = 0
writev(11, [{"Status: ", 8}, {"200", 3}, {"\r\n", 2}, {"X-Powered-By: ", 14}, {"Phusion Passenger (mod_rails/mod"..., 44}, {"\r\n", 2}, {"Content-Disposition", 19}, {": ", 2}, {"inline; filename=\"simple_captcha"..., 37}, {"\r\n", 2}, {"Content-Transfer-Encoding", 25}, {": ", 2}, {"binary", 6}, {"\r\n", 2}, {"Content-Type", 12}, {": ", 2}, {"image/jpeg", 10}, {"\r\n", 2}, {"Cache-Control", 13}, {": ", 2}, {"private", 7}, {"\r\n", 2}, {"X-UA-Compatible", 15}, {": ", 2}, {"IE=Edge,chrome=1", 16}, {"\r\n", 2}, {"Set-Cookie", 10}, {": ", 2}, {"_newuser_session=BAh7CEkiD3Nlc3N"..., 275}, {"\r\n", 2}, {"X-Sendfile", 10}, {": ", 2}, ...], 39) = 623
shutdown(11, 1 /* send */)              = 0
close(11)                               = 0
...

更新：

我认为 https://github.com/galetahub/simple-captcha也许吧。我选择了这个分支 https://github.com/kares/simple_captcha 所有环境工作正常！

Answer 1

https://github.com/galetahub/simple-captcha 使用 send_file （来自 Rails Streaming API）流式传输验证码图像。您是否在 apache 配置中启用了 mod-xsendfile？

Answer 2

您应该尝试在 config/environments/production.rb 文件中设置 config.serve_static_assets = true 。

默认情况下，出于性能原因，rails 在生产模式下不提供静态内容。您的网络服务器应该配置为执行此操作。

Answer 3

如果我记得验证码对于开发和生产环境有不同的密钥，您已经检查过了吗？