(ubuntu環境下)瀏覽器(通過cgi)調用外部程序

1、使用環境:Ubuntu+Apache2+cgi+python
2、安裝並配置Apache2
    1)sudo apt-get install tasksel
    2)sudo tasksel
         
    (按空格鍵)選中LAMP server,(Tab鍵)回車,安裝好LAMP server
    3)sudo vim /etc/apache2/sites-enabled/000-default.conf
         添加 ScriptAlias /cgi-bin/ /cgi-bin/
          在/var/www/目錄中增加cgi-bin目錄:sudo mkdir /var/www/cgi-bin
          修改日誌目錄(如果目錄不存在執行:sudo mkdir /var/www/logs):
         ErrorLog /var/www/logs/error.log
         CustomLog /var/www/logs/access.log combined
          詳細參考配置如下:
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
#ServerName www.example.com

ServerAdmin [email protected]
# DocumentRoot /var/www/html
DocumentRoot /var/www

ScriptAlias /cgi-bin/ /cgi-bin/

# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn

ErrorLog /var/www/logs/error.log
CustomLog /var/www/logs/access.log combined

# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
</VirtualHost>

# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
    4)sudo gedit /etc/apache2/apache2.conf
    增加配置 /var/www/cgi-bin     
<Directory "/var/www/cgi-bin">
AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Require all granted
AddHandler cgi-script cgi
</Directory>
    其它配置修改詳情如下:
# This is the main Apache server configuration file. It contains the
# configuration directives that give the server its instructions.
# See http://httpd.apache.org/docs/2.4/ for detailed information about
# the directives and /usr/share/doc/apache2/README.Debian about Debian specific
# hints.
#
#
# Summary of how the Apache 2 configuration works in Debian:
# The Apache 2 web server configuration in Debian is quite different to
# upstream's suggested way to configure the web server. This is because Debian's
# default Apache2 installation attempts to make adding and removing modules,
# virtual hosts, and extra configuration directives as flexible as possible, in
# order to make automating the changes and administering the server as easy as
# possible.


# It is split into several files forming the configuration hierarchy outlined
# below, all located in the /etc/apache2/ directory:
#
# /etc/apache2/
# |-- apache2.conf
# | `-- ports.conf
# |-- mods-enabled
# | |-- *.load
# | `-- *.conf
# |-- conf-enabled
# | `-- *.conf
# `-- sites-enabled
# `-- *.conf
#
#
# * apache2.conf is the main configuration file (this file). It puts the pieces
# together by including all remaining configuration files when starting up the
# web server.
#
# * ports.conf is always included from the main configuration file. It is
# supposed to determine listening ports for incoming connections which can be
# customized anytime.
#
# * Configuration files in the mods-enabled/, conf-enabled/ and sites-enabled/
# directories contain particular configuration snippets which manage modules,
# global configuration fragments, or virtual host configurations,
# respectively.
#
# They are activated by symlinking available configuration files from their
# respective *-available/ counterparts. These should be managed by using our
# helpers a2enmod/a2dismod, a2ensite/a2dissite and a2enconf/a2disconf. See
# their respective man pages for detailed information.
#
# * The binary is called apache2. Due to the use of environment variables, in
# the default configuration, apache2 needs to be started/stopped with
# /etc/init.d/apache2 or apache2ctl. Calling /usr/bin/apache2 directly will not
# work with the default configuration.


# Global configuration

#

#

# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# NOTE! If you intend to place this on an NFS (or otherwise network)
# mounted filesystem then please read the Mutex documentation (available
# at <URL:http://httpd.apache.org/docs/2.4/mod/core.html#mutex>);
# you will save yourself a lot of trouble.
#
# Do NOT add a slash at the end of the directory path.
#
#ServerRoot "/etc/apache2"


#
# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#
Mutex file:${APACHE_LOCK_DIR} default


#
# PidFile: The file in which the server should record its process
# identification number when it starts.
# This needs to be set in /etc/apache2/envvars
#
PidFile ${APACHE_PID_FILE}


#
# Timeout: The number of seconds before receives and sends time out.
#
Timeout 300


#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive On


#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100


#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 5



# These need to be set in /etc/apache2/envvars
User ${APACHE_RUN_USER}
Group ${APACHE_RUN_GROUP}


#
# HostnameLookups: Log the names of clients or just their IP addresses
# e.g., www.apache.org (on) or 204.62.129.132 (off).
# The default is off because it'd be overall better for the net if people
# had to knowingly turn this feature on, since enabling it means that
# each client request will result in AT LEAST one lookup request to the
# nameserver.
#
HostnameLookups Off


# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here. If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog /var/www/logs/error.log


#
# LogLevel: Control the severity of messages logged to the error_log.
# Available values: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the log level for particular modules, e.g.
# "LogLevel info ssl:warn"
#
LogLevel debug


# Include module configuration:
IncludeOptional mods-enabled/*.load
IncludeOptional mods-enabled/*.conf


# Include list of ports to listen on
Include ports.conf


# Sets the default security model of the Apache2 HTTPD server. It does
# not allow access to the root filesystem outside of /usr/share and /var/www.
# The former is used by web applications packaged in Debian,
# the latter may be used for local directories served by the web server. If
# your system is serving content from a sub-directory in /srv you must allow
# access here, or in any related virtual host.
# Require all denied
<Directory />
Options FollowSymLinks
AllowOverride None
Require all granted
</Directory>

<Directory /usr/share>
AllowOverride None
Require all granted
</Directory>

<Directory /usr/share>
AllowOverride None
Require all granted
</Directory>


<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>


<Directory "/var/www/cgi-bin">
AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Require all granted
AddHandler cgi-script cgi
</Directory>


#<Directory /srv/>
# Options Indexes FollowSymLinks
# AllowOverride None
# Require all granted
#</Directory>

# AccessFileName: The name of the file to look for in each directory
# for additional configuration directives. See also the AllowOverride
# directive.
#
AccessFileName .htaccess


#
# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
#
#Require all denied
<FilesMatch "^\.ht">
Require all granted
</FilesMatch>


#
# The following directives define some format nicknames for use with
# a CustomLog directive.
#
# These deviate from the Common Log Format definitions in that they use %O
# (the actual bytes sent including headers) instead of %b (the size of the
# requested file), because the latter makes it impossible to detect partial
# requests.
#
# Note that the use of %{X-Forwarded-For}i instead of %h is not recommended.
# Use mod_remoteip instead.
#
LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent


# Include of directories ignores editors' and dpkg's backup files,
# see README.Debian for details.


# Include generic snippets of statements
IncludeOptional conf-enabled/*.conf


# Include the virtual host configurations:
IncludeOptional sites-enabled/*.conf


# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
     5)添加cgi模塊到服務中
         cd /etc/apache2/mods-enabled/
         sudo ln -s ../mods-available/cgi.load  .
        目錄增加:cgi.load,執行ll命令後,增加詳細信息如下:
         lrwxrwxrwx 1 root root   26 12月 29 17:13 cgi.load -> ../mods-available/cgi.load
3、在/var/www/中增加測試html頁,內容如下:    
<form action="/cgi-bin/hello.py" method="get">
Name: <input type="text" name="name">
<input type="submit" value="Submit" />
</form>

4、在/cgi-bin增加hello.py文件,內容如下:
#!/usr/bin/env python
import cgi


form = cgi.FieldStorage()


name = form.getvalue('name')


print "Content-Type: text/html;charset=utf-8"
print
print "<html>"
print "<head>"
print "<title>test</title>"
print "</head>"
print "<body>"
print "<h2>Hello %s </h2>" % (name)
print "</body>"
print "</html>"

5、重啓apache服務
     sudo /etc/init.d/apache2 restart
6、打開瀏覽器,輸入:http://127.0.0.1/hello.html
     
7、輸入 world,回車
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