From af849d8bc64d5b500accdacd46e15c2a2f0b92ad Mon Sep 17 00:00:00 2001
From: mappu <mappu04@gmail.com>
Date: Sun, 9 Jul 2017 13:50:13 +1200
Subject: [PATCH] initial /modify/ endpoint implementation

---
 WikiServer.go |  9 +++++++
 rModify.go    | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 rModify.go

diff --git a/WikiServer.go b/WikiServer.go
index 5b98da6..f47ed7d 100644
--- a/WikiServer.go
+++ b/WikiServer.go
@@ -76,6 +76,15 @@ func (this *WikiServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			this.routeView(w, r, articleTitle)
 			return
 
+		} else if strings.HasPrefix(r.URL.Path, this.opts.ExpectBaseURL+"modify/") {
+			articleTitle, err := url.QueryUnescape(r.URL.Path[len(this.opts.ExpectBaseURL+"modify/"):])
+			if err != nil {
+				this.serveErrorMessage(w, err)
+				return
+			}
+			this.routeModify(w, r, articleTitle)
+			return
+
 		} else if strings.HasPrefix(r.URL.Path, this.opts.ExpectBaseURL+"raw/") {
 			revId, err := strconv.Atoi(r.URL.Path[len(this.opts.ExpectBaseURL+"raw/"):])
 			if err != nil {
diff --git a/rModify.go b/rModify.go
new file mode 100644
index 0000000..309e25c
--- /dev/null
+++ b/rModify.go
@@ -0,0 +1,68 @@
+package yatwiki3
+
+import (
+	"database/sql"
+	"fmt"
+	"html/template"
+	"net/http"
+	"net/url"
+)
+
+func (this *WikiServer) routeModify(w http.ResponseWriter, r *http.Request, articleTitle string) {
+
+	isNewArticle := false
+
+	a, err := this.db.GetLatestVersion(articleTitle)
+	if err != nil {
+
+		if err == sql.ErrNoRows {
+			// this is fine - we're creating it for the first time
+			isNewArticle = true
+
+		} else {
+			this.serveErrorMessage(w, err)
+			return
+		}
+	}
+
+	var pageTitleHTML string
+	var baseRev int
+	var existingBody string
+	if isNewArticle {
+		pageTitleHTML = `Creating new article`
+		baseRev = 0
+	} else {
+		pageTitleHTML = `Editing article &quot;<a href="` + template.HTMLEscapeString(this.opts.ExpectBaseURL+`view/`+url.QueryEscape(articleTitle)) + `">` + template.HTMLEscapeString(articleTitle) + `</a>&quot;`
+		baseRev = a.ID
+		existingBody = string(a.Body)
+	}
+
+	content := `
+<h2>` + pageTitleHTML + `</h2><br>
+
+<form method="POST" action="` + template.HTMLEscapeString(this.opts.ExpectBaseURL+`save`) + `" class="editor" accept-charset="UTF-8">
+	<div class="frm">
+		<label>
+			Save as:
+			<input type="hidden" name="baserev" value="` + fmt.Sprintf("%d", baseRev) + `" />
+			<input type="text" name="pname" value="` + template.HTMLEscapeString(articleTitle) + `"/>
+		</label>
+		<input type="submit" value="Save &raquo;">
+		| <a href="` + template.HTMLEscapeString(this.opts.ExpectBaseURL+`formatting`) + `" target="_blank">formatting&nbsp;help</a>
+	</div>
+	<div id="contentctr"><textarea name="content">` + template.HTMLEscapeString(existingBody) + `</textarea></div>
+</form>
+	`
+
+	pto := DefaultPageTemplateOptions(this.opts)
+	if isNewArticle {
+		pto.CurrentPageName = "New article"
+	} else {
+		pto.CurrentPageName = articleTitle
+		pto.CurrentPageIsArticle = true
+	}
+	pto.Content = template.HTML(content)
+	this.servePageResponse(w, r, pto)
+	return
+
+}