cgi-bin/jobs.c

   1 /*
   2  * Job status CGI for CUPS.
   3  *
   4  * Copyright 2007-2014 by Apple Inc.
   5  * Copyright 1997-2006 by Easy Software Products.
   6  *
   7  * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
   8  */
   9
  10 /*
  11  * Include necessary headers...
  12  */
  13
  14 #include "cgi-private.h"
  15
  16
  17 /*
  18  * Local functions...
  19  */
  20
  21 static void     do_job_op(http_t *http, int job_id, ipp_op_t op);
  22
  23
  24 /*
  25  * 'main()' - Main entry for CGI.
  26  */
  27
  28 int                                     /* O - Exit status */
  29 main(void)
  30 {
  31   http_t        *http;                  /* Connection to the server */
  32   const char    *op;                    /* Operation name */
  33   const char    *job_id_var;            /* Job ID form variable */
  34   int           job_id;                 /* Job ID */
  35
  36
  37  /*
  38   * Get any form variables...
  39   */
  40
  41   cgiInitialize();
  42
  43  /*
  44   * Set the web interface section...
  45   */
  46
  47   cgiSetVariable("SECTION", "jobs");
  48   cgiSetVariable("REFRESH_PAGE", "");
  49
  50  /*
  51   * Connect to the HTTP server...
  52   */
  53
  54   http = httpConnectEncrypt(cupsServer(), ippPort(), cupsEncryption());
  55
  56  /*
  57   * Get the job ID, if any...
  58   */
  59
  60   if ((job_id_var = cgiGetVariable("JOB_ID")) != NULL)
  61     job_id = atoi(job_id_var);
  62   else
  63     job_id = 0;
  64
  65  /*
  66   * Do the operation...
  67   */
  68
  69   if ((op = cgiGetVariable("OP")) != NULL && job_id > 0 && cgiIsPOST())
  70   {
  71    /*
  72     * Do the operation...
  73     */
  74
  75     if (!strcmp(op, "cancel-job"))
  76       do_job_op(http, job_id, IPP_CANCEL_JOB);
  77     else if (!strcmp(op, "hold-job"))
  78       do_job_op(http, job_id, IPP_HOLD_JOB);
  79     else if (!strcmp(op, "move-job"))
  80       cgiMoveJobs(http, NULL, job_id);
  81     else if (!strcmp(op, "release-job"))
  82       do_job_op(http, job_id, IPP_RELEASE_JOB);
  83     else if (!strcmp(op, "restart-job"))
  84       do_job_op(http, job_id, IPP_RESTART_JOB);
  85     else
  86     {
  87      /*
  88       * Bad operation code...  Display an error...
  89       */
  90
  91       cgiStartHTML(cgiText(_("Jobs")));
  92       cgiCopyTemplateLang("error-op.tmpl");
  93       cgiEndHTML();
  94     }
  95   }
  96   else
  97   {
  98    /*
  99     * Show a list of jobs...
 100     */
 101
 102     cgiStartHTML(cgiText(_("Jobs")));
 103     cgiShowJobs(http, NULL);
 104     cgiEndHTML();
 105   }
 106
 107  /*
 108   * Close the HTTP server connection...
 109   */
 110
 111   httpClose(http);
 112
 113  /*
 114   * Return with no errors...
 115   */
 116
 117   return (0);
 118 }
 119
 120
 121 /*
 122  * 'do_job_op()' - Do a job operation.
 123  */
 124
 125 static void
 126 do_job_op(http_t      *http,            /* I - HTTP connection */
 127           int         job_id,           /* I - Job ID */
 128           ipp_op_t    op)               /* I - Operation to perform */
 129 {
 130   ipp_t         *request;               /* IPP request */
 131   char          uri[HTTP_MAX_URI];      /* Job URI */
 132   const char    *user;                  /* Username */
 133
 134
 135  /*
 136   * Build a job request, which requires the following
 137   * attributes:
 138   *
 139   *    attributes-charset
 140   *    attributes-natural-language
 141   *    job-uri or printer-uri (purge-jobs)
 142   *    requesting-user-name
 143   */
 144
 145   request = ippNewRequest(op);
 146
 147   snprintf(uri, sizeof(uri), "ipp://localhost/jobs/%d", job_id);
 148
 149   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri",
 150                NULL, uri);
 151
 152   if ((user = getenv("REMOTE_USER")) == NULL)
 153     user = "guest";
 154
 155   ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 156                "requesting-user-name", NULL, user);
 157
 158  /*
 159   * Do the request and get back a response...
 160   */
 161
 162   ippDelete(cupsDoRequest(http, request, "/jobs"));
 163
 164   if (cupsLastError() <= IPP_OK_CONFLICT && getenv("HTTP_REFERER"))
 165   {
 166    /*
 167     * Redirect successful updates back to the parent page...
 168     */
 169
 170     char        url[1024];              /* Encoded URL */
 171
 172
 173     strlcpy(url, "5;URL=", sizeof(url));
 174     cgiFormEncode(url + 6, getenv("HTTP_REFERER"), sizeof(url) - 6);
 175     cgiSetVariable("refresh_page", url);
 176   }
 177   else if (cupsLastError() == IPP_NOT_AUTHORIZED)
 178   {
 179     puts("Status: 401\n");
 180     exit(0);
 181   }
 182
 183   cgiStartHTML(cgiText(_("Jobs")));
 184
 185   if (cupsLastError() > IPP_OK_CONFLICT)
 186     cgiShowIPPError(_("Job operation failed"));
 187   else if (op == IPP_CANCEL_JOB)
 188     cgiCopyTemplateLang("job-cancel.tmpl");
 189   else if (op == IPP_HOLD_JOB)
 190     cgiCopyTemplateLang("job-hold.tmpl");
 191   else if (op == IPP_RELEASE_JOB)
 192     cgiCopyTemplateLang("job-release.tmpl");
 193   else if (op == IPP_RESTART_JOB)
 194     cgiCopyTemplateLang("job-restart.tmpl");
 195
 196   cgiEndHTML();
 197 }