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Overview
Comment:Add the 'D' Debug user capability. This is designed to show additional information and controls on webpages for debugging purposes. Also take steps to avoid trying to generate a webpage error message after the webpage has already gone out.
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SHA3-256:fd3198322a6f902a38dcabdea1663de940ce017b3daf658ffad548f5f3f19f9b
User & Date: drh 2018-07-25 13:20:15
Context
2018-07-30
13:25
Backoffice processing improvements: Set a timer on the backoffice to prevent it from running too long. Report errors on failed attempts to open /dev/null. Use "NUL" instead of "/dev/null" on Windows. check-in: 07356e44 user: drh tags: trunk
2018-07-25
13:21
Merge enhancements from trunk. check-in: 94262a8c user: drh tags: forum-v2
13:20
Add the 'D' Debug user capability. This is designed to show additional information and controls on webpages for debugging purposes. Also take steps to avoid trying to generate a webpage error message after the webpage has already gone out. check-in: fd319832 user: drh tags: trunk
2018-07-22
21:10
In debug config, reference the compiled sources; this allows stepping through the actual code in the debugger check-in: 58bf02d1 user: ashepilko tags: trunk
Changes
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Changes to src/cgi.c. 

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  }
  fflush(g.httpOut);
  CGIDEBUG(("DONE\n"));

  /* After the webpage has been sent, do any useful background
  ** processing.
  */

  if( g.db!=0 && iReplyStatus==200 ){
    fclose(g.httpOut);
    g.httpOut = fossil_fopen("/dev/null", "wb");
    backoffice_run();
  }
}









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  }
  fflush(g.httpOut);
  CGIDEBUG(("DONE\n"));

  /* After the webpage has been sent, do any useful background
  ** processing.
  */
  g.cgiOutput = 2;
  if( g.db!=0 && iReplyStatus==200 ){
    fclose(g.httpOut);
    g.httpOut = fossil_fopen("/dev/null", "wb");
    backoffice_run();
  }
}

Changes to src/login.c. 

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      case '5':   p->ModForum = 1;
      case '4':   p->WrTForum = 1;
      case '3':   p->WrForum = 1;
      case '2':   p->RdForum = 1;                              break;

      case '7':   p->EmailAlert = 1;                           break;
      case 'A':   p->Announce = 1;                             break;


      /* The "u" privileges is a little different.  It recursively
      ** inherits all privileges of the user named "reader" */
      case 'u': {
        if( (flags & LOGIN_IGNORE_UV)==0 ){
          const char *zUser;
          zUser = db_text("", "SELECT cap FROM user WHERE login='reader'");
................................................................................
      case '2':  rc = p->RdForum;   break;
      case '3':  rc = p->WrForum;   break;
      case '4':  rc = p->WrTForum;  break;
      case '5':  rc = p->ModForum;  break;
      case '6':  rc = p->AdminForum;break;
      case '7':  rc = p->EmailAlert;break;
      case 'A':  rc = p->Announce;  break;

      default:   rc = 0;            break;
    }
  }
  return rc;
}

/*








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      case '5':   p->ModForum = 1;
      case '4':   p->WrTForum = 1;
      case '3':   p->WrForum = 1;
      case '2':   p->RdForum = 1;                              break;

      case '7':   p->EmailAlert = 1;                           break;
      case 'A':   p->Announce = 1;                             break;
      case 'D':   p->Debug = 1;                                break;

      /* The "u" privileges is a little different.  It recursively
      ** inherits all privileges of the user named "reader" */
      case 'u': {
        if( (flags & LOGIN_IGNORE_UV)==0 ){
          const char *zUser;
          zUser = db_text("", "SELECT cap FROM user WHERE login='reader'");
................................................................................
      case '2':  rc = p->RdForum;   break;
      case '3':  rc = p->WrForum;   break;
      case '4':  rc = p->WrTForum;  break;
      case '5':  rc = p->ModForum;  break;
      case '6':  rc = p->AdminForum;break;
      case '7':  rc = p->EmailAlert;break;
      case 'A':  rc = p->Announce;  break;
      case 'D':  rc = p->Debug;     break;
      default:   rc = 0;            break;
    }
  }
  return rc;
}

/*

Changes to src/main.c. 

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  char RdForum;          /* 2: Read forum posts */
  char WrForum;          /* 3: Create new forum posts */
  char WrTForum;         /* 4: Post to forums not subject to moderation */
  char ModForum;         /* 5: Moderate (approve or reject) forum posts */
  char AdminForum;       /* 6: Edit forum posts by other users */
  char EmailAlert;       /* 7: Sign up for email notifications */
  char Announce;         /* A: Send announcements */

};

#ifdef FOSSIL_ENABLE_TCL
/*
** All Tcl related context information is in this structure.  This structure
** definition has been copied from and should be kept in sync with the one in
** "th_tcl.c".
................................................................................
  char *zHttpsURL;        /* zBaseURL translated to https: */
  char *zTop;             /* Parent directory of zPath */
  const char *zContentType;  /* The content type of the input HTTP request */
  int iErrPriority;       /* Priority of current error message */
  char *zErrMsg;          /* Text of an error message */
  int sslNotAvailable;    /* SSL is not available.  Do not redirect to https: */
  Blob cgiIn;             /* Input to an xfer www method */
  int cgiOutput;          /* 0: command-line 1: CGI. 2: CGI after an error */
  int xferPanic;          /* Write error messages in XFER protocol */
  int fullHttpReply;      /* True for full HTTP reply.  False for CGI reply */
  Th_Interp *interp;      /* The TH1 interpreter */
  char *th1Setup;         /* The TH1 post-creation setup script, if any */
  int th1Flags;           /* The TH1 integration state flags */
  FILE *httpIn;           /* Accept HTTP input from here */
  FILE *httpOut;          /* Send HTTP output here */








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  char RdForum;          /* 2: Read forum posts */
  char WrForum;          /* 3: Create new forum posts */
  char WrTForum;         /* 4: Post to forums not subject to moderation */
  char ModForum;         /* 5: Moderate (approve or reject) forum posts */
  char AdminForum;       /* 6: Edit forum posts by other users */
  char EmailAlert;       /* 7: Sign up for email notifications */
  char Announce;         /* A: Send announcements */
  char Debug;            /* D: show extra Fossil debugging features */
};

#ifdef FOSSIL_ENABLE_TCL
/*
** All Tcl related context information is in this structure.  This structure
** definition has been copied from and should be kept in sync with the one in
** "th_tcl.c".
................................................................................
  char *zHttpsURL;        /* zBaseURL translated to https: */
  char *zTop;             /* Parent directory of zPath */
  const char *zContentType;  /* The content type of the input HTTP request */
  int iErrPriority;       /* Priority of current error message */
  char *zErrMsg;          /* Text of an error message */
  int sslNotAvailable;    /* SSL is not available.  Do not redirect to https: */
  Blob cgiIn;             /* Input to an xfer www method */
  int cgiOutput;          /* 0: command-line 1: CGI. 2: after CGI */
  int xferPanic;          /* Write error messages in XFER protocol */
  int fullHttpReply;      /* True for full HTTP reply.  False for CGI reply */
  Th_Interp *interp;      /* The TH1 interpreter */
  char *th1Setup;         /* The TH1 post-creation setup script, if any */
  int th1Flags;           /* The TH1 integration state flags */
  FILE *httpIn;           /* Accept HTTP input from here */
  FILE *httpOut;          /* Send HTTP output here */

Changes to src/printf.c. 

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  fossil_errorlog("warning: %s", z);
#ifdef FOSSIL_ENABLE_JSON
  if(g.json.isJsonMode){
    json_warn( FSL_JSON_W_UNKNOWN, "%s", z );
  }else
#endif
  {
    if( g.cgiOutput ){
      cgi_printf("<p class=\"generalError\">\n%h\n</p>\n", z);
    }else{
      fossil_force_newline();
      fossil_trace("%s\n", z);
    }
  }
  free(z);








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  fossil_errorlog("warning: %s", z);
#ifdef FOSSIL_ENABLE_JSON
  if(g.json.isJsonMode){
    json_warn( FSL_JSON_W_UNKNOWN, "%s", z );
  }else
#endif
  {
    if( g.cgiOutput==1 ){
      cgi_printf("<p class=\"generalError\">\n%h\n</p>\n", z);
    }else{
      fossil_force_newline();
      fossil_trace("%s\n", z);
    }
  }
  free(z);

Changes to src/setup.c. 

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     @ <tr><th valign="top">6</th>
     @   <td><i>Forum-Supervisor:</i> \
     @ Forum administrator
     @ <tr><th valign="top">7</th>
     @   <td><i>Email-Alerts:</i> Sign up for email nofications</td></tr>
     @ <tr><th valign="top">A</th>
     @   <td><i>Announce:</i> Send announcements</td></tr>


  @ </table>
}

/*
** WEBPAGE: setup_ulist_notes
**
** A documentation page showing notes about user configuration.  This
................................................................................
  @  <label><input type="checkbox" name="ai"%s(oa['i']) />
  @  Check-In%s(B('i'))</label><br />
  @  <label><input type="checkbox" name="ao"%s(oa['o']) />
  @  Check-Out%s(B('o'))</label><br />
  @  <label><input type="checkbox" name="ah"%s(oa['h']) />
  @  Hyperlinks%s(B('h'))</label><br />
  @  <label><input type="checkbox" name="ab"%s(oa['b']) />
  @  Attachments%s(B('b'))</label>

  @ </td><td><td width="40"></td><td valign="top">
  @  <label><input type="checkbox" name="ag"%s(oa['g']) />
  @  Clone%s(B('g'))</label><br />


  @  <label><input type="checkbox" name="aj"%s(oa['j']) />
  @  Read Wiki%s(B('j'))</label><br>
  @  <label><input type="checkbox" name="af"%s(oa['f']) />
  @  New Wiki%s(B('f'))</label><br />
  @  <label><input type="checkbox" name="am"%s(oa['m']) />
  @  Append Wiki%s(B('m'))</label><br />
  @  <label><input type="checkbox" name="ak"%s(oa['k']) />
................................................................................
  @  <label><input type="checkbox" name="an"%s(oa['n']) />
  @  New Tickets%s(B('n'))</label><br />
  @  <label><input type="checkbox" name="ac"%s(oa['c']) />
  @  Append To Ticket%s(B('c'))</label><br>
  @  <label><input type="checkbox" name="aw"%s(oa['w']) />
  @  Write Tickets%s(B('w'))</label><br />
  @  <label><input type="checkbox" name="aq"%s(oa['q']) />
  @  Moderate Tickets%s(B('q'))</label>

  @ </td><td><td width="40"></td><td valign="top">
  @  <label><input type="checkbox" name="at"%s(oa['t']) />
  @  Ticket Report%s(B('t'))</label><br />
  @  <label><input type="checkbox" name="ax"%s(oa['x']) />
  @  Private%s(B('x'))</label><br />


  @  <label><input type="checkbox" name="ay"%s(oa['y']) />
  @  Write Unversioned%s(B('y'))</label><br />
  @  <label><input type="checkbox" name="az"%s(oa['z']) />
  @  Download Zip%s(B('z'))</label><br />
  @  <label><input type="checkbox" name="a2"%s(oa['2']) />
  @  Read Forum%s(B('2'))</label><br />
  @  <label><input type="checkbox" name="a3"%s(oa['3']) />
................................................................................
  @  <label><input type="checkbox" name="a5"%s(oa['5']) />
  @  Moderate Forum%s(B('5'))</label><br>
  @  <label><input type="checkbox" name="a6"%s(oa['6']) />
  @  Supervise Forum%s(B('6'))</label><br>
  @  <label><input type="checkbox" name="a7"%s(oa['7']) />
  @  Email Alerts%s(B('7'))</label><br>
  @  <label><input type="checkbox" name="aA"%s(oa['A']) />
  @  Send Announcements%s(B('A'))</label>


  @ </td></tr>
  @ </table>
  @   </td>
  @ </tr>
  @ <tr>
  @   <td class="usetupEditLabel">Selected Cap.:</td>
  @   <td>








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     @ <tr><th valign="top">6</th>
     @   <td><i>Forum-Supervisor:</i> \
     @ Forum administrator
     @ <tr><th valign="top">7</th>
     @   <td><i>Email-Alerts:</i> Sign up for email nofications</td></tr>
     @ <tr><th valign="top">A</th>
     @   <td><i>Announce:</i> Send announcements</td></tr>
     @ <tr><th valign="top">D</th>
     @   <td><i>Debug:</i> Enable debugging features</td></tr>
  @ </table>
}

/*
** WEBPAGE: setup_ulist_notes
**
** A documentation page showing notes about user configuration.  This
................................................................................
  @  <label><input type="checkbox" name="ai"%s(oa['i']) />
  @  Check-In%s(B('i'))</label><br />
  @  <label><input type="checkbox" name="ao"%s(oa['o']) />
  @  Check-Out%s(B('o'))</label><br />
  @  <label><input type="checkbox" name="ah"%s(oa['h']) />
  @  Hyperlinks%s(B('h'))</label><br />
  @  <label><input type="checkbox" name="ab"%s(oa['b']) />
  @  Attachments%s(B('b'))</label><br>


  @  <label><input type="checkbox" name="ag"%s(oa['g']) />
  @  Clone%s(B('g'))</label><br />

  @ </td><td><td width="40"></td><td valign="top">
  @  <label><input type="checkbox" name="aj"%s(oa['j']) />
  @  Read Wiki%s(B('j'))</label><br>
  @  <label><input type="checkbox" name="af"%s(oa['f']) />
  @  New Wiki%s(B('f'))</label><br />
  @  <label><input type="checkbox" name="am"%s(oa['m']) />
  @  Append Wiki%s(B('m'))</label><br />
  @  <label><input type="checkbox" name="ak"%s(oa['k']) />
................................................................................
  @  <label><input type="checkbox" name="an"%s(oa['n']) />
  @  New Tickets%s(B('n'))</label><br />
  @  <label><input type="checkbox" name="ac"%s(oa['c']) />
  @  Append To Ticket%s(B('c'))</label><br>
  @  <label><input type="checkbox" name="aw"%s(oa['w']) />
  @  Write Tickets%s(B('w'))</label><br />
  @  <label><input type="checkbox" name="aq"%s(oa['q']) />
  @  Moderate Tickets%s(B('q'))</label><br>


  @  <label><input type="checkbox" name="at"%s(oa['t']) />
  @  Ticket Report%s(B('t'))</label><br />
  @  <label><input type="checkbox" name="ax"%s(oa['x']) />
  @  Private%s(B('x'))</label>

  @ </td><td><td width="40"></td><td valign="top">
  @  <label><input type="checkbox" name="ay"%s(oa['y']) />
  @  Write Unversioned%s(B('y'))</label><br />
  @  <label><input type="checkbox" name="az"%s(oa['z']) />
  @  Download Zip%s(B('z'))</label><br />
  @  <label><input type="checkbox" name="a2"%s(oa['2']) />
  @  Read Forum%s(B('2'))</label><br />
  @  <label><input type="checkbox" name="a3"%s(oa['3']) />
................................................................................
  @  <label><input type="checkbox" name="a5"%s(oa['5']) />
  @  Moderate Forum%s(B('5'))</label><br>
  @  <label><input type="checkbox" name="a6"%s(oa['6']) />
  @  Supervise Forum%s(B('6'))</label><br>
  @  <label><input type="checkbox" name="a7"%s(oa['7']) />
  @  Email Alerts%s(B('7'))</label><br>
  @  <label><input type="checkbox" name="aA"%s(oa['A']) />
  @  Send Announcements%s(B('A'))</label><br>
  @  <label><input type="checkbox" name="aD"%s(oa['D']) />
  @  Enable Debug%s(B('D'))</label>
  @ </td></tr>
  @ </table>
  @   </td>
  @ </tr>
  @ <tr>
  @   <td class="usetupEditLabel">Selected Cap.:</td>
  @   <td>

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