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- //: C26:ExtractInfo.cpp
- // From Thinking in C++, 2nd Edition
- // Available at http://www.BruceEckel.com
- // (c) Bruce Eckel 1999
- // Copyright notice in Copyright.txt
- // Extracts all the information from a CGI POST
- // submission, generates a file and stores the
- // information on the server. By generating a
- // unique file name, there are no clashes like
- // you get when storing to a single file.
- #include "CGImap.h"
- #include <iostream>
- #include <fstream>
- #include <cstdio>
- #include <ctime>
- using namespace std;
-
- const string contact("Bruce@EckelObjects.com");
- // Paths in this program are for Linux/Unix. You
- // must use backslashes (two for each single
- // slash) on Win32 servers:
- const string rootpath("/home/eckel/");
-
- void show(CGImap& m, ostream& o);
- // The definition for the following is the only
- // thing you must change to customize the program
- void
- store(CGImap& m, ostream& o, string nl = "\n");
-
- int main() {
- cout << "Content-type: text/html\n"<< endl;
- Post p; // Collect the POST data
- CGImap query(p);
- // "test-field" set to "on" will dump contents
- if(query["test-field"] == "on") {
- cout << "map size: " << query.size() << "<br>";
- query.dump(cout);
- }
- if(query["subject-field"].size() == 0) {
- cout << "<h2>Incorrect form. Contact " <<
- contact << endl;
- return 0;
- }
- string email = query["email-address"];
- if(email.size() == 0) {
- cout << "<h2>Please enter your email address"
- << endl;
- return 0;
- }
- if(email.find_first_of(" \t") != string::npos){
- cout << "<h2>You cannot include white space "
- "in your email address" << endl;
- return 0;
- }
- if(email.find('@') == string::npos) {
- cout << "<h2>You must include a proper email"
- " address including an '@' sign" << endl;
- return 0;
- }
- if(email.find('.') == string::npos) {
- cout << "<h2>You must include a proper email"
- " address including a '.'" << endl;
- return 0;
- }
- // Create a unique file name with the user's
- // email address and the current time in hex
- const int bsz = 1024;
- char fname[bsz];
- time_t now;
- time(&now); // Encoded date & time
- sprintf(fname, "%s%X.txt", email.c_str(), now);
- string path(rootpath + query["subject-field"] +
- "/" + fname);
- ofstream out(path.c_str());
- if(!out) {
- cout << "cannot open " << path << "; Contact"
- << contact << endl;
- return 0;
- }
- // Store the file and path information:
- out << "///{" << path << endl;
- // Display optional reminder:
- if(query["reminder"].size() != 0)
- cout <<"<H1>" << query["reminder"] <<"</H1>";
- show(query, cout); // For results page
- store(query, out); // Stash data in file
- cout << "<br><H2>Your submission has been "
- "posted as<br>" << fname << endl
- << "<br>Thank you</H2>" << endl;
- out.close();
- // Optionally send generated file as email
- // to recipients specified in the field:
- if(query["mail-copy"].length() != 0 &&
- query["mail-copy"] != "no") {
- string to = query["mail-copy"];
- // Parse out the recipient names, separated
- // by ';', into a vector.
- vector<string> recipients;
- int ii = to.find(';');
- while(ii != string::npos) {
- recipients.push_back(to.substr(0, ii));
- to = to.substr(ii + 1);
- ii = to.find(';');
- }
- recipients.push_back(to); // Last one
- // "fastmail" only available on Linux/Unix:
- for(int i = 0; i < recipients.size(); i++) {
- string cmd("fastmail -s"" \"" +
- query["subject-field"] + "\" " +
- path + " " + recipients[i]);
- system(cmd.c_str());
- }
- }
- // Execute a confirmation program on the file.
- // Typically, this is so you can email a
- // processed data file to the client along with
- // a confirmation message:
- if(query["confirmation"].length() != 0) {
- string conftype = query["confirmation"];
- if(conftype == "confirmation1") {
- string command("./ProcessApplication.exe "+
- path + " &");
- // The data file is the argument, and the
- // ampersand runs it as a separate process:
- system(command.c_str());
- string logfile("Extract.log");
- ofstream log(logfile.c_str());
- }
- }
- }
-
- // For displaying the information on the html
- // results page:
- void show(CGImap& m, ostream& o) {
- string nl("<br>");
- o << "<h2>The data you entered was:"
- << "</h2><br>"
- << "From[" << m["email-address"] << ']' <<nl;
- for(CGImap::iterator it = m.begin();
- it != m.end(); it++) {
- string name = (*it).first,
- value = (*it).second;
- if(name != "email-address" &&
- name != "confirmation" &&
- name != "submit" &&
- name != "mail-copy" &&
- name != "test-field" &&
- name != "reminder")
- o << "<h3>" << name << ": </h3>"
- << "<pre>" << value << "</pre>";
- }
- }
-
- // Change this to customize the program:
- void store(CGImap& m, ostream& o, string nl) {
- o << "From[" << m["email-address"] << ']' <<nl;
- for(CGImap::iterator it = m.begin();
- it != m.end(); it++) {
- string name = (*it).first,
- value = (*it).second;
- if(name != "email-address" &&
- name != "confirmation" &&
- name != "submit" &&
- name != "mail-copy" &&
- name != "test-field" &&
- name != "reminder")
- o << nl << "[{[" << name << "]}]" << nl
- << "[([" << nl << value << nl << "])]"
- << nl;
- // Delimiters were added to aid parsing of
- // the resulting text file.
- }
- } ///:~
-