From b34b2e2b7cefc9ca0cda6184273cf493da20f426 Mon Sep 17 00:00:00 2001
From: Akilan Selvacoumar <31743758+Akilan1999@users.noreply.github.com>
Date: Fri, 10 Mar 2023 09:47:18 +0000
Subject: [PATCH] Change directory route and document change (#107)

* changed route to view files added by a certain node

* gofmt my changes

* added fix for blockchain/explore to also accept localnodes as a parameter.

* added local blockchain search
---
 search/Text 2 Hash.go | 48 +++++++++++++++++++++----------------------
 webapi/Blockchain.go  | 42 ++++++++++++++++++++++++++++++++++---
 2 files changed, 63 insertions(+), 27 deletions(-)

diff --git a/search/Text 2 Hash.go b/search/Text 2 Hash.go
index 41edb1e..5343b3e 100644
--- a/search/Text 2 Hash.go	
+++ b/search/Text 2 Hash.go	
@@ -103,37 +103,37 @@ func hashWord(word string) (hash []byte, wordHashed string) {
 //
 // Examples
 //
-//   "" =>                     [""]
-//   "lowercase" =>            ["lowercase"]
-//   "Class" =>                ["Class"]
-//   "MyClass" =>              ["My", "Class"]
-//   "MyC" =>                  ["My", "C"]
-//   "HTML" =>                 ["HTML"]
-//   "PDFLoader" =>            ["PDF", "Loader"]
-//   "AString" =>              ["A", "String"]
-//   "SimpleXMLParser" =>      ["Simple", "XML", "Parser"]
-//   "vimRPCPlugin" =>         ["vim", "RPC", "Plugin"]
-//   "GL11Version" =>          ["GL", "11", "Version"]
-//   "99Bottles" =>            ["99", "Bottles"]
-//   "May5" =>                 ["May", "5"]
-//   "BFG9000" =>              ["BFG", "9000"]
-//   "BöseÜberraschung" =>     ["Böse", "Überraschung"]
-//   "Two  spaces" =>          ["Two", "  ", "spaces"]
-//   "BadUTF8\xe2\xe2\xa1" =>  ["BadUTF8\xe2\xe2\xa1"]
+//	"" =>                     [""]
+//	"lowercase" =>            ["lowercase"]
+//	"Class" =>                ["Class"]
+//	"MyClass" =>              ["My", "Class"]
+//	"MyC" =>                  ["My", "C"]
+//	"HTML" =>                 ["HTML"]
+//	"PDFLoader" =>            ["PDF", "Loader"]
+//	"AString" =>              ["A", "String"]
+//	"SimpleXMLParser" =>      ["Simple", "XML", "Parser"]
+//	"vimRPCPlugin" =>         ["vim", "RPC", "Plugin"]
+//	"GL11Version" =>          ["GL", "11", "Version"]
+//	"99Bottles" =>            ["99", "Bottles"]
+//	"May5" =>                 ["May", "5"]
+//	"BFG9000" =>              ["BFG", "9000"]
+//	"BöseÜberraschung" =>     ["Böse", "Überraschung"]
+//	"Two  spaces" =>          ["Two", "  ", "spaces"]
+//	"BadUTF8\xe2\xe2\xa1" =>  ["BadUTF8\xe2\xe2\xa1"]
 //
 // Splitting rules
 //
-//  1) If string is not valid UTF-8, return it without splitting as -> removed in this fork.
+//  1. If string is not valid UTF-8, return it without splitting as -> removed in this fork.
 //     single item array.
-//  2) Assign all unicode characters into one of 4 sets: lower case
+//  2. Assign all unicode characters into one of 4 sets: lower case
 //     letters, upper case letters, numbers, and all other characters.
-//  3) Iterate through characters of string, introducing splits
+//  3. Iterate through characters of string, introducing splits
 //     between adjacent characters that belong to different sets.
-//  4) Iterate through array of split strings, and if a given string
+//  4. Iterate through array of split strings, and if a given string
 //     is upper case:
-//       if subsequent string is lower case:
-//         move last character of upper case string to beginning of
-//         lower case string
+//     if subsequent string is lower case:
+//     move last character of upper case string to beginning of
+//     lower case string
 func CamelCaseSplit(src string) (entries []string) {
 	entries = []string{}
 	var runes [][]rune
diff --git a/webapi/Blockchain.go b/webapi/Blockchain.go
index 90e741d..ae6e6e3 100644
--- a/webapi/Blockchain.go
+++ b/webapi/Blockchain.go
@@ -7,9 +7,10 @@ Author:     Peter Kleissner
 package webapi
 
 import (
-    "encoding/hex"
-    "net/http"
-    "strconv"
+	"bytes"
+	"encoding/hex"
+	"net/http"
+	"strconv"
 
     "github.com/PeernetOfficial/core/blockchain"
 )
@@ -147,3 +148,38 @@ func (api *WebapiInstance) apiExploreNodeID(w http.ResponseWriter, r *http.Reque
 
     EncodeJSON(api.Backend, w, r, result)
 }
+
+/*
+apiExploreNodeID returns the shared files of a particular node in Peernet. Results are returned in real-time. The file type is an optional filter. See TypeX.
+Special type -2 = Binary, Compressed, Container, Executable. This special type includes everything except Documents, Video, Audio, Ebooks, Picture, Text.
+
+Request:    GET /blockchain/view?limit=[max records]&type=[file type]&offset=[offset]&node=[node id]
+Result:     200 with JSON structure SearchResult. Check the field status.
+*/
+func (api *WebapiInstance) apiExploreNodeID(w http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	offset, _ := strconv.Atoi(r.Form.Get("offset"))
+	limit, err := strconv.Atoi(r.Form.Get("limit"))
+	if err != nil {
+		limit = 100
+	}
+	// ID fields for results for a specific node ID.
+	NodeId, _ := DecodeBlake3Hash(r.Form.Get("node"))
+
+	fileType, err := strconv.Atoi(r.Form.Get("type"))
+	if err != nil {
+		fileType = -1
+	}
+
+	// check if the node IDs are the same
+	if bytes.Compare(NodeId, api.Backend.SelfNodeID()) == 0 {
+		// setting the value of block to 0
+		r.Form.Add("block", "0")
+		api.apiBlockchainRead(w, r)
+		return
+	}
+
+	result := api.ExploreHelper(fileType, limit, offset, NodeId, true)
+
+	EncodeJSON(api.Backend, w, r, result)
+}