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Overview
Comment:Add the /jtext webpage, intended for use by XHR.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 5f7fcbabf01abf6fd4b7bc146e709c9d8d0fe9669abff8837aefdc0f7cb87eb9
User & Date: drh 2021-09-07 19:09:29.366
Context
2021-09-07
19:15
On the /jtext page, terminate the JSON array early if there are insufficient lines of text in the file to complete the request. ... (check-in: 6f5dfd9d80 user: drh tags: trunk)
19:09
Add the /jtext webpage, intended for use by XHR. ... (check-in: 5f7fcbabf0 user: drh tags: trunk)
18:45
When HTML diffs are generated from a webpage, include sufficient information in class names ids, and data- elements to permit JS to redraw the separators to include context fill-in buttons. ... (check-in: c275a166b3 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/info.c.
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    @ Unknown artifact: "%h(zName)"
    return;
  }
  g.isConst = 1;
  deliver_artifact(rid, P("m"));
}



























































/*
** Generate a verbatim artifact as the result of an HTTP request.
** If zMime is not NULL, use it as the mimetype.  If zMime is
** NULL, guess at the mimetype based on the filename
** associated with the artifact.
*/







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    @ Unknown artifact: "%h(zName)"
    return;
  }
  g.isConst = 1;
  deliver_artifact(rid, P("m"));
}


/*
** WEBPAGE: jtext
** URL: /jtext/HASH?from=N&to=M
**
** Return lines of text from a file as a JSON array - one entry in the
** array for each line of text.
**
** This page is intended to be used in an XHR from javascript on a diff
** page, to return unseen context to fill in additional context when the
** user clicks on the appropriate button.
*/
void jtext_page(void){
  int rid = 0;
  const char *zName = PD("name", "");
  int iFrom = atoi(PD("from","0"));
  int iTo = atoi(PD("to","0"));
  int ln;
  const char *zSep;
  Blob content;
  Blob line;
  Blob *pOut;

  login_check_credentials();
  if( !g.perm.Read ){ login_needed(g.anon.Read); return; }
  rid = db_int(0, "SELECT rid FROM blob WHERE uuid=%Q", zName);
  if( rid==0 ){
    cgi_set_status(404, "Not Found");
    @ Unknown artifact: "%h(zName)"
    return;
  }
  if( iFrom<1 || iTo<iFrom ){
    cgi_set_status(500, "Bad Request");
    @ Invalid line range
    return;
  }
  content_get(rid, &content);
  g.isConst = 1;
  cgi_set_content_type("text/json");
  ln = 0;
  zSep = "[\n";
  while( ln<iFrom ){
    blob_line(&content, &line);
    ln++;
  }
  pOut = cgi_output_blob();
  while( ln<=iTo ){
    blob_append(pOut, zSep, 2);
    blob_trim(&line);
    blob_append_json_literal(pOut, blob_buffer(&line), blob_size(&line));
    zSep = ",\n";
    blob_line(&content, &line);
    ln++;
  }
  blob_appendf(pOut,"]\n");
  blob_reset(&content);
}

/*
** Generate a verbatim artifact as the result of an HTTP request.
** If zMime is not NULL, use it as the mimetype.  If zMime is
** NULL, guess at the mimetype based on the filename
** associated with the artifact.
*/