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Overview
Comment:Add the website_assert() macro. Fixes to forum post editing.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | forum-v2
Files: files | file ages | folders
SHA3-256:e67efdd784156e6af05dee43e873e0f208f7580aacfc13a3fd9981925a664bd4
User & Date: drh 2018-07-25 16:10:49
Context
2018-07-25
17:53
Further improvements to webpage_error() and webpage_assert(). Fix forum processing so that moderator approval and disapproval work. Add the "Delete" feature to forum that simply nulls out the page using an edit. check-in: 32bbb9a9 user: drh tags: forum-v2
16:10
Add the website_assert() macro. Fixes to forum post editing. check-in: e67efdd7 user: drh tags: forum-v2
15:02
If the user has the 'D' capability and the "showqp" query parameter exists, then all query parameters are shown at the top of the webpage. Also, fix some issues with forum. check-in: b48068de user: drh tags: forum-v2
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/forum.c.

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#include "config.h"
#include <assert.h>
#include "forum.h"

/*
** Render a forum post for display
*/


void forum_render(const char *zMimetype, const char *zContent){


  Blob x;




  blob_init(&x, 0, 0);
  blob_append(&x, zContent, -1);
  wiki_render_by_mimetype(&x, zMimetype);
  blob_reset(&x);

}

/*
** Display all posts in a forum thread in chronological order
*/
static void forum_thread_chronological(int froot){
  Stmt q;
................................................................................
      @ edit of %d(fprev)
    }
    if( firt ){
      @ reply to %d(firt)
    }
    if( g.perm.Debug ){
      @ <span class="debug">\
      @ <a href="%R/artifact/%h(zUuid)">raw artifact</a></span>
    }
    forum_render(pPost->zMimetype, pPost->zWiki);
    if( g.perm.WrForum ){
      int sameUser = login_is_individual()
                     && fossil_strcmp(pPost->zUser, g.zLogin)==0;
      int isPrivate = content_is_private(fpid);
      @ <p><form action="%R/forumedit" method="POST">
      @ <input type="hidden" name="fpid" value="%s(zUuid)">
      if( !isPrivate ){
................................................................................
  const char *zTitle,          /* Title.  NULL for replies */
  int iInReplyTo,              /* Post replying to.  0 for new threads */
  int iEdit,                   /* Post being edited, or zero for a new post */
  const char *zUser,           /* Username.  NULL means use login name */
  const char *zMimetype,       /* Mimetype of content. */
  const char *zContent         /* Content */
){
  Blob x, cksum;
  char *zDate;






  schema_forum();







  blob_init(&x, 0, 0);
  zDate = date_in_standard_format("now");
  blob_appendf(&x, "D %s\n", zDate);
  fossil_free(zDate);
  if( zTitle ){
    blob_appendf(&x, "H %F\n", zTitle);
  }else{
    char *zG = db_text(0, 
       "SELECT uuid FROM blob, forumpost"
       " WHERE blob.rid==forumpost.froot"
       "   AND forumpost.fpid=%d", iInReplyTo);
    char *zI;
    if( zG==0 ) goto forum_post_error;

    blob_appendf(&x, "G %s\n", zG);
    fossil_free(zG);




    zI = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", iInReplyTo);
    if( zI==0 ) goto forum_post_error;
    blob_appendf(&x, "I %s\n", zI);
    fossil_free(zI);
  }
  if( fossil_strcmp(zMimetype,"text/x-fossil-wiki")!=0 ){
    blob_appendf(&x, "N %s\n", zMimetype);
  }
  if( iEdit>0 ){
    char *zP = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", iEdit);
    if( zP==0 ) goto forum_post_error;
    blob_appendf(&x, "P %s\n", zP);
    fossil_free(zP);
  }
  if( zUser==0 ){
    if( login_is_nobody() ){
      zUser = "anonymous";
    }else{
................................................................................
    }
  }
  blob_appendf(&x, "U %F\n", zUser);
  blob_appendf(&x, "W %d\n%s\n", strlen(zContent), zContent);
  md5sum_blob(&x, &cksum);
  blob_appendf(&x, "Z %b\n", &cksum);
  blob_reset(&cksum);














  if( P("dryrun") ){
    @ <div class='debug'>
    @ This is the artifact that would have been generated:
    @ <pre>%h(blob_str(&x))</pre>
    @ </div>


  }else{
    int nrid = wiki_put(&x, 0, forum_need_moderation());
    cgi_redirectf("%R/forumthread/%S", rid_to_uuid(nrid));
    return 1;
  }

forum_post_error:
  blob_reset(&x);
  return 0;
}

/*
** Paint the form elements for entering a Forum post
*/
static void forum_entry_widget(
  const char *zTitle,
................................................................................
    login_needed(g.anon.WrForum);
    return;
  }
  if( P("submit") ){
    if( forum_post(zTitle, 0, 0, 0, zMimetype, zContent) ) return;
  }
  if( P("preview") ){
    @ <h1>%h(zTitle)</h1>
    forum_render(zMimetype, zContent);
    @ <hr>
  }
  style_header("New Forum Thread");
  @ <form action="%R/%s(g.zPath)" method="POST">
  forum_entry_widget(zTitle, zMimetype, zContent);
  @ <input type="submit" name="preview" value="Preview">
  if( P("preview") ){
    @ <input type="submit" name="submit" value="Submit">
................................................................................
    @ Show query parameters</label>
    @ </div>
  }
  @ </form>
  style_footer();
}

/*
** WEBPAGE: forumreply
**
** Reply to a forum message.
** Query parameters:
**
**   name=X        Hash of the post to reply to.  REQUIRED
*/
void forumreply_page(void){
  style_header("Pending");
  @ TBD...
  style_footer();
}

/*
** WEBPAGE: forumedit
**
** Edit an existing forum message.
** Query parameters:
**
**   name=X        Hash of the post to be editted.  REQUIRED
*/
void forumedit_page(void){
  int fpid;
  Manifest *pPost;




  login_check_credentials();
  if( !g.perm.WrForum ){
    login_needed(g.anon.WrForum);
    return;
  }
  fpid = symbolic_name_to_rid(PD("fpid",""), "f");
  if( fpid<=0 || (pPost = manifest_get(fpid, CFTYPE_FORUM, 0))==0 ){
    webpage_error("Missing or invalid fpid query parameter");
    return;
  }
  if( g.perm.ModForum ){
    if( P("approve") ){
      webpage_not_yet_implemented();
      return;
    }
    if( P("reject") ){
................................................................................
  if( P("submit") && cgi_csrf_safe(1) ){
    int done = 1;
    const char *zMimetype = PD("mimetype","text/x-fossil-wiki");
    const char *zContent = PDT("content","");
    if( P("reply") ){
      done = forum_post(0, fpid, 0, 0, zMimetype, zContent);
    }else if( P("edit") ){
      done = forum_post(0, 0, fpid, 0, zMimetype, zContent);
    }else{
      webpage_error("Need one of 'edit' or 'reply' query parameters");
    }
    if( done ) return;
  }
  if( P("edit") ){
    /* Provide an edit to the fpid post */
    webpage_not_yet_implemented();
    return;



















  }else{
    const char *zMimetype = PD("mimetype","text/x-fossil-wiki");
    const char *zContent = PDT("content","");
    style_header("Forum Reply");
    @ <h1>Replying To:</h1>
    forum_render(pPost->zMimetype, pPost->zWiki);
    if( P("preview") ){
      @ <h1>Preview:</h1>
      forum_render(zMimetype,zContent);
    }
    @ <h1>Enter A Reply:</h1>
    @ <form action="%R/forumedit" method="POST">
    @ <input type="hidden" name="fpid" value="%h(P("fpid"))">
    @ <input type="hidden" name="reply" value="1">
    forum_entry_widget(0, zMimetype, zContent);

    @ <input type="submit" name="preview" value="Preview">
    if( P("preview") ){
      @ <input type="submit" name="submit" value="Submit">
    }
    if( g.perm.Debug ){
      /* For the test-forumnew page add these extra debugging controls */
      @ <div class="debug">
      @ <label><input type="checkbox" name="dryrun" %s(PCK("dryrun"))> \
      @ Dry run</label>
      @ <br><label><input type="checkbox" name="domod" %s(PCK("domod"))> \
      @ Require moderator approval</label>
      @ <br><label><input type="checkbox" name="showqp" %s(PCK("showqp"))> \
      @ Show query parameters</label>
      @ </div>
    }
    @ </form>
  }
  style_footer();
}







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#include "config.h"
#include <assert.h>
#include "forum.h"

/*
** Render a forum post for display
*/
void forum_render(
  const char *zTitle,
  const char *zMimetype,
  const char *zContent
){
  Blob x;
  @ <div style='border: 1px solid black;padding: 1ex;'>
  if( zTitle ){
    @ <h1>%h(zTitle)</h1>
  }
  blob_init(&x, 0, 0);
  blob_append(&x, zContent, -1);
  wiki_render_by_mimetype(&x, zMimetype);
  blob_reset(&x);
  @ </div>
}

/*
** Display all posts in a forum thread in chronological order
*/
static void forum_thread_chronological(int froot){
  Stmt q;
................................................................................
      @ edit of %d(fprev)
    }
    if( firt ){
      @ reply to %d(firt)
    }
    if( g.perm.Debug ){
      @ <span class="debug">\
      @ <a href="%R/artifact/%h(zUuid)">artifact</a></span>
    }
    forum_render(0, pPost->zMimetype, pPost->zWiki);
    if( g.perm.WrForum ){
      int sameUser = login_is_individual()
                     && fossil_strcmp(pPost->zUser, g.zLogin)==0;
      int isPrivate = content_is_private(fpid);
      @ <p><form action="%R/forumedit" method="POST">
      @ <input type="hidden" name="fpid" value="%s(zUuid)">
      if( !isPrivate ){
................................................................................
  const char *zTitle,          /* Title.  NULL for replies */
  int iInReplyTo,              /* Post replying to.  0 for new threads */
  int iEdit,                   /* Post being edited, or zero for a new post */
  const char *zUser,           /* Username.  NULL means use login name */
  const char *zMimetype,       /* Mimetype of content. */
  const char *zContent         /* Content */
){

  char *zDate;
  char *zI;
  char *zG;
  int iBasis;
  Blob x, cksum, formatCheck, errMsg;
  Manifest *pPost;

  schema_forum();
  if( iInReplyTo==0 && iEdit>0 ){
    iBasis = iEdit;
    iInReplyTo = db_int(0, "SELECT firt FROM forumpost WHERE fpid=%d", iEdit);
  }else{
    iBasis = iInReplyTo;
  }
  webpage_assert( (zTitle==0)+(iInReplyTo==0)==1 );
  blob_init(&x, 0, 0);
  zDate = date_in_standard_format("now");
  blob_appendf(&x, "D %s\n", zDate);
  fossil_free(zDate);



  zG = db_text(0, 
     "SELECT uuid FROM blob, forumpost"
     " WHERE blob.rid==forumpost.froot"
     "   AND forumpost.fpid=%d", iBasis);


  if( zG ){
    blob_appendf(&x, "G %s\n", zG);
    fossil_free(zG);
  }
  if( zTitle ){
    blob_appendf(&x, "H %F\n", zTitle);
  }
  zI = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", iInReplyTo);
  if( zI ){
    blob_appendf(&x, "I %s\n", zI);
    fossil_free(zI);
  }
  if( fossil_strcmp(zMimetype,"text/x-fossil-wiki")!=0 ){
    blob_appendf(&x, "N %s\n", zMimetype);
  }
  if( iEdit>0 ){
    char *zP = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", iEdit);
    if( zP==0 ) webpage_error("missing edit artifact %d", iEdit);
    blob_appendf(&x, "P %s\n", zP);
    fossil_free(zP);
  }
  if( zUser==0 ){
    if( login_is_nobody() ){
      zUser = "anonymous";
    }else{
................................................................................
    }
  }
  blob_appendf(&x, "U %F\n", zUser);
  blob_appendf(&x, "W %d\n%s\n", strlen(zContent), zContent);
  md5sum_blob(&x, &cksum);
  blob_appendf(&x, "Z %b\n", &cksum);
  blob_reset(&cksum);

  /* Verify that the artifact we are creating is well-formed */
  blob_init(&formatCheck, 0, 0);
  blob_init(&errMsg, 0, 0);
  blob_copy(&formatCheck, &x);
  pPost = manifest_parse(&formatCheck, 0, &errMsg);
  if( pPost==0 ){
    webpage_error("malformed forum post artifact - %s", blob_str(&errMsg));
  }
  if( pPost->type!=CFTYPE_FORUM ){
    webpage_error("forum post artifact malformed");
  }
  manifest_destroy(pPost);

  if( P("dryrun") ){
    @ <div class='debug'>
    @ This is the artifact that would have been generated:
    @ <pre>%h(blob_str(&x))</pre>
    @ </div>
    blob_reset(&x);
    return 0;
  }else{
    int nrid = wiki_put(&x, 0, forum_need_moderation());
    cgi_redirectf("%R/forumthread/%S", rid_to_uuid(nrid));
    return 1;
  }




}

/*
** Paint the form elements for entering a Forum post
*/
static void forum_entry_widget(
  const char *zTitle,
................................................................................
    login_needed(g.anon.WrForum);
    return;
  }
  if( P("submit") ){
    if( forum_post(zTitle, 0, 0, 0, zMimetype, zContent) ) return;
  }
  if( P("preview") ){
    @ <h1>Preview:</h1>
    forum_render(zTitle, zMimetype, zContent);

  }
  style_header("New Forum Thread");
  @ <form action="%R/%s(g.zPath)" method="POST">
  forum_entry_widget(zTitle, zMimetype, zContent);
  @ <input type="submit" name="preview" value="Preview">
  if( P("preview") ){
    @ <input type="submit" name="submit" value="Submit">
................................................................................
    @ Show query parameters</label>
    @ </div>
  }
  @ </form>
  style_footer();
}















/*
** WEBPAGE: forumedit
**
** Edit an existing forum message.
** Query parameters:
**
**   name=X        Hash of the post to be editted.  REQUIRED
*/
void forumedit_page(void){
  int fpid;
  Manifest *pPost;
  const char *zMimetype = 0;
  const char *zContent = 0;
  const char *zTitle = 0;

  login_check_credentials();
  if( !g.perm.WrForum ){
    login_needed(g.anon.WrForum);
    return;
  }
  fpid = symbolic_name_to_rid(PD("fpid",""), "f");
  if( fpid<=0 || (pPost = manifest_get(fpid, CFTYPE_FORUM, 0))==0 ){
    webpage_error("Missing or invalid fpid query parameter");

  }
  if( g.perm.ModForum ){
    if( P("approve") ){
      webpage_not_yet_implemented();
      return;
    }
    if( P("reject") ){
................................................................................
  if( P("submit") && cgi_csrf_safe(1) ){
    int done = 1;
    const char *zMimetype = PD("mimetype","text/x-fossil-wiki");
    const char *zContent = PDT("content","");
    if( P("reply") ){
      done = forum_post(0, fpid, 0, 0, zMimetype, zContent);
    }else if( P("edit") ){
      done = forum_post(P("title"), 0, fpid, 0, zMimetype, zContent);
    }else{
      webpage_error("Missing 'reply' query parameter");
    }
    if( done ) return;
  }
  if( P("edit") ){
    /* Provide an edit to the fpid post */
    zMimetype = P("mimetype");
    zContent = PT("content");
    zTitle = P("title");
    if( zContent==0 ) zContent = fossil_strdup(pPost->zWiki);
    if( zMimetype==0 ) zMimetype = fossil_strdup(pPost->zMimetype);
    if( zTitle==0 && pPost->zThreadTitle!=0 ){
      zTitle = fossil_strdup(pPost->zThreadTitle);
    }
    style_header("Forum Edit");
    @ <h1>Original Post:</h1>
    forum_render(pPost->zThreadTitle, pPost->zMimetype, pPost->zWiki);
    if( P("preview") ){
      @ <h1>Preview Of Editted Post:</h1>
      forum_render(zTitle, zMimetype, zContent);
    }
    @ <h1>
    @ <h1>Enter A Reply:</h1>
    @ <form action="%R/forumedit" method="POST">
    @ <input type="hidden" name="fpid" value="%h(P("fpid"))">
    @ <input type="hidden" name="edit" value="1">
    forum_entry_widget(zTitle, zMimetype, zContent);
  }else{
    zMimetype = PD("mimetype","text/x-fossil-wiki");
    zContent = PDT("content","");
    style_header("Forum Reply");
    @ <h1>Replying To:</h1>
    forum_render(0, pPost->zMimetype, pPost->zWiki);
    if( P("preview") ){
      @ <h1>Preview:</h1>
      forum_render(0, zMimetype,zContent);
    }
    @ <h1>Enter A Reply:</h1>
    @ <form action="%R/forumedit" method="POST">
    @ <input type="hidden" name="fpid" value="%h(P("fpid"))">
    @ <input type="hidden" name="reply" value="1">
    forum_entry_widget(0, zMimetype, zContent);
  }
  @ <input type="submit" name="preview" value="Preview">
  if( P("preview") ){
    @ <input type="submit" name="submit" value="Submit">
  }
  if( g.perm.Debug ){
    /* For the test-forumnew page add these extra debugging controls */
    @ <div class="debug">
    @ <label><input type="checkbox" name="dryrun" %s(PCK("dryrun"))> \
    @ Dry run</label>
    @ <br><label><input type="checkbox" name="domod" %s(PCK("domod"))> \
    @ Require moderator approval</label>
    @ <br><label><input type="checkbox" name="showqp" %s(PCK("showqp"))> \
    @ Show query parameters</label>
    @ </div>
  }
  @ </form>

  style_footer();
}

Changes to src/style.c.

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** the error message is shown.
**
** If zFormat is an empty string, then this is the /test_env page.
*/
void webpage_error(const char *zFormat, ...){
  int i;
  int showAll;
  char *zErr;
  int isAuth = 0;
  char zCap[100];
  static const char *const azCgiVars[] = {
    "COMSPEC", "DOCUMENT_ROOT", "GATEWAY_INTERFACE",
    "HTTP_ACCEPT", "HTTP_ACCEPT_CHARSET", "HTTP_ACCEPT_ENCODING",
    "HTTP_ACCEPT_LANGUAGE", "HTTP_AUTHENICATION",
    "HTTP_CONNECTION", "HTTP_HOST",
................................................................................
  if( zFormat[0] ){
    va_list ap;
    va_start(ap, zFormat);
    zErr = vmprintf(zFormat, ap);
    va_end(ap);
    style_header("Bad Request");
    @ <h1>/%h(g.zPath): %h(zErr)</h1>
    fossil_free(zErr);
    showAll = 0;
    if( !isAuth ){
      style_footer();
      return;
    }
  }else if( !isAuth ){
    login_needed(0);
    return;
  }else{
    style_header("Environment Test");
    showAll = PB("showall");
    style_submenu_checkbox("showall", "Cookies", 0, 0);
    style_submenu_element("Stats", "%R/stat");
  }


#if !defined(_WIN32)
  @ uid=%d(getuid()), gid=%d(getgid())<br />
#endif
  @ g.zBaseURL = %h(g.zBaseURL)<br />
  @ g.zHttpsURL = %h(g.zHttpsURL)<br />
  @ g.zTop = %h(g.zTop)<br />
  @ g.zPath = %h(g.zPath)<br />
  @ g.userUid = %d(g.userUid)<br />
  @ g.zLogin = %h(g.zLogin)<br />
  @ g.isHuman = %d(g.isHuman)<br />
  if( g.nRequest ){
    @ g.nRequest = %d(g.nRequest)<br />
  }
  if( g.nPendingRequest>1 ){
    @ g.nPendingRequest = %d(g.nPendingRequest)<br />
  }
  @ capabilities = %s(find_capabilities(zCap))<br />
  if( zCap[0] ){
    @ anonymous-adds = %s(find_anon_capabilities(zCap))<br />
  }
  @ g.zRepositoryName = %h(g.zRepositoryName)<br />
  @ load_average() = %f(load_average())<br />
  @ cgi_csrf_safe(0) = %d(cgi_csrf_safe(0))<br />
  @ <hr />
  P("HTTP_USER_AGENT");
  cgi_print_all(showAll, 0);
  if( showAll && blob_size(&g.httpHeader)>0 ){
    @ <hr />
    @ <pre>
    @ %h(blob_str(&g.httpHeader))
    @ </pre>
  }

  style_footer();



}

/*
** Generate a Not Yet Implemented error page.
*/
void webpage_not_yet_implemented(void){
  webpage_error("Not yet implemented");
}












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** the error message is shown.
**
** If zFormat is an empty string, then this is the /test_env page.
*/
void webpage_error(const char *zFormat, ...){
  int i;
  int showAll;
  char *zErr = 0;
  int isAuth = 0;
  char zCap[100];
  static const char *const azCgiVars[] = {
    "COMSPEC", "DOCUMENT_ROOT", "GATEWAY_INTERFACE",
    "HTTP_ACCEPT", "HTTP_ACCEPT_CHARSET", "HTTP_ACCEPT_ENCODING",
    "HTTP_ACCEPT_LANGUAGE", "HTTP_AUTHENICATION",
    "HTTP_CONNECTION", "HTTP_HOST",
................................................................................
  if( zFormat[0] ){
    va_list ap;
    va_start(ap, zFormat);
    zErr = vmprintf(zFormat, ap);
    va_end(ap);
    style_header("Bad Request");
    @ <h1>/%h(g.zPath): %h(zErr)</h1>

    showAll = 0;




  }else if( !isAuth ){
    login_needed(0);
    return;
  }else{
    style_header("Environment Test");
    showAll = PB("showall");
    style_submenu_checkbox("showall", "Cookies", 0, 0);
    style_submenu_element("Stats", "%R/stat");
  }

  if( isAuth ){
  #if !defined(_WIN32)
    @ uid=%d(getuid()), gid=%d(getgid())<br />
  #endif
    @ g.zBaseURL = %h(g.zBaseURL)<br />
    @ g.zHttpsURL = %h(g.zHttpsURL)<br />
    @ g.zTop = %h(g.zTop)<br />
    @ g.zPath = %h(g.zPath)<br />
    @ g.userUid = %d(g.userUid)<br />
    @ g.zLogin = %h(g.zLogin)<br />
    @ g.isHuman = %d(g.isHuman)<br />
    if( g.nRequest ){
      @ g.nRequest = %d(g.nRequest)<br />
    }
    if( g.nPendingRequest>1 ){
      @ g.nPendingRequest = %d(g.nPendingRequest)<br />
    }
    @ capabilities = %s(find_capabilities(zCap))<br />
    if( zCap[0] ){
      @ anonymous-adds = %s(find_anon_capabilities(zCap))<br />
    }
    @ g.zRepositoryName = %h(g.zRepositoryName)<br />
    @ load_average() = %f(load_average())<br />
    @ cgi_csrf_safe(0) = %d(cgi_csrf_safe(0))<br />
    @ <hr />
    P("HTTP_USER_AGENT");
    cgi_print_all(showAll, 0);
    if( showAll && blob_size(&g.httpHeader)>0 ){
      @ <hr />
      @ <pre>
      @ %h(blob_str(&g.httpHeader))
      @ </pre>
    }
  }
  style_footer();
  if( zErr ){
    fossil_panic("webpage_error: %s", zErr);
  }
}

/*
** Generate a Not Yet Implemented error page.
*/
void webpage_not_yet_implemented(void){
  webpage_error("Not yet implemented");
}

#if INTERFACE
# define webpage_assert(T) \
   if(!(T)){webpage_error("assertion failed %s:%d: %s",__FILE__,__LINE__,#T);}
#endif