From 6ce34b2d61a8c596ea1a44099f2ff898bc070166 Mon Sep 17 00:00:00 2001
From: Steve James <0x2t1ff@gmail.com>
Date: Mon, 7 Feb 2022 00:15:31 +0000
Subject: [PATCH] add json2pdf.py script

---
 parser/json2pdf.py | 142 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100755 parser/json2pdf.py

diff --git a/parser/json2pdf.py b/parser/json2pdf.py
new file mode 100755
index 0000000..fcc889d
--- /dev/null
+++ b/parser/json2pdf.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env python3
+import sys
+import json
+from reportlab.lib.pagesizes import letter
+from reportlab.platypus import Frame, Paragraph, Spacer, PageBreak,PageTemplate, BaseDocTemplate
+from reportlab.platypus.tableofcontents import TableOfContents
+from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
+from reportlab.lib.units import cm
+
+styles = getSampleStyleSheet()
+
+# Required to automatically set Page Numbers
+class PageTemplateWithCount(PageTemplate):
+    def __init__(self, id, frames, **kw):
+        PageTemplate.__init__(self, id, frames, **kw)
+
+    def beforeDrawPage(self, canvas, doc):
+        page_num = canvas.getPageNumber()
+        canvas.drawRightString(10.5*cm, 1*cm, str(page_num))
+
+# Required to automatically set the Table of Contents
+class MyDocTemplate(BaseDocTemplate):
+    def __init__(self, filename, **kw):
+        self.allowSplitting = 0
+        BaseDocTemplate.__init__(self, filename, **kw)
+        template = PageTemplateWithCount("normal", [Frame(2.5*cm, 2.5*cm, 15*cm, 25*cm, id='F1')])
+        self.addPageTemplates(template)
+
+    def afterFlowable(self, flowable):
+        if flowable.__class__.__name__ == "Paragraph":
+            text = flowable.getPlainText()
+            style = flowable.style.name
+            if style == "Heading1":
+                self.notify("TOCEntry", (0, text, self.page))
+            if style == "Heading2":
+                self.notify("TOCEntry", (1, text, self.page))
+            if style == "Heading3":
+                self.notify("TOCEntry", (2, text, self.page))
+      
+
+# Poor take at dynamicly generating styles depending on depth(?)
+def get_level_styles(level):
+    global styles
+    indent_value = 10 * (level - 1);
+    # Overriding some default stylings
+    level_styles = { 
+        "title": ParagraphStyle(
+          **dict(styles[f"Heading{level}"].__dict__,
+          **{ "leftIndent": indent_value })),
+        "text": ParagraphStyle(
+          **dict(styles["Code"].__dict__,
+          **{ "backColor": "#F0F0F0",
+          "borderPadding": 5, "borderWidth": 1,
+          "borderColor": "black", "borderRadius": 5,
+          "leftIndent": 5 + indent_value})),
+        "info": ParagraphStyle(
+          **dict(styles["Italic"].__dict__,
+          **{ "leftIndent": indent_value })),
+    }
+    return level_styles
+
+
+def build_main_section(section, title, level=1):
+    styles = get_level_styles(level)
+    has_links = "infos" in section.keys() and len(section["infos"]) > 0
+    has_lines = "lines" in section.keys() and len(section["lines"]) > 1
+    has_children = "sections" in section.keys() and len(section["sections"].keys()) > 0
+
+    # Only display data for Sections with results
+    show_section = has_lines or has_children
+
+    elements = []
+
+    if show_section:
+        elements.append(Paragraph(title, style=styles["title"]))
+
+    # Print info if any
+    if show_section and has_links:
+        for info in section["infos"]:
+            words = info.split() 
+            # Join all lines and encode any links that might be present.
+            words = map(lambda word: f'<a href="{word}" color="blue">{word}</a>' if "http" in word else word, words)
+            words = " ".join(words)
+            elements.append(Paragraph(words, style=styles["info"] ))
+
+  # Print lines if any
+    if "lines" in section.keys() and len(section["lines"]) > 1:
+        lines = list(map(lambda x: x["clean_text"], section["lines"]))
+        elements.append(Spacer(0, 10))
+        line = "<br/>".join(lines)
+
+    # If it's a top level entry remove the line break caused by an empty "clean_text"
+        if level == 1: line = line[5:]
+        elements.append(Paragraph(line, style=styles["text"]))
+
+
+  # Print child sections
+    if has_children:
+        for child_title in section["sections"].keys():
+            element_list = build_main_section(section["sections"][child_title], child_title, level + 1)
+            elements.extend(element_list)
+  
+  # Add spacing at the end of section. The deeper the level the smaller the spacing.
+    if show_section:
+        elements.append(Spacer(1, 40 - (10 * level)))
+  
+    return elements
+  
+
+def main():
+    with open(JSON_PATH) as file:
+        # Read and parse JSON file
+        data = json.loads(file.read())
+
+        # Default pdf values
+        doc = MyDocTemplate(PDF_PATH)
+        toc = TableOfContents()
+        toc.levelStyles = [
+            ParagraphStyle(name = "Heading1", fontSize = 14, leading=16),
+            ParagraphStyle(name = "Heading2", fontSize = 12, leading=14, leftIndent = 10),
+            ParagraphStyle(name = "Heading3", fontSize = 10, leading=12, leftIndent = 20),
+        ]
+
+        elements = [Paragraph("PEAS Report", style=styles["Title"]), Spacer(0, 30), toc, PageBreak()]
+      
+        # Iterate over all top level sections and build their elements.
+        for title in data.keys():
+            element_list = build_main_section(data[title], title)
+            elements.extend(element_list)
+      
+        doc.multiBuild(elements)
+
+# Start execution
+if __name__ == "__main__":
+    try:
+        JSON_PATH = sys.argv[1]
+        PDF_PATH = sys.argv[2]
+    except IndexError as err:
+        print("Error: Please pass the peas.json file and the path to save the pdf\n./json2pdf.py <json_file> <pdf_file.pdf>")
+        sys.exit(1)
+    
+    main()