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endpoint.go
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endpoint.go
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// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
//
// This software (Documize Community Edition) is licensed under
// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
//
// You can operate outside the AGPL restrictions by purchasing
// Documize Enterprise Edition and obtaining a commercial license
// by contacting <sales@documize.com>.
//
// https://documize.com
package link
import (
"database/sql"
"net/http"
"net/url"
"github.com/documize/community/core/env"
"github.com/documize/community/core/request"
"github.com/documize/community/core/response"
"github.com/documize/community/core/uniqueid"
"github.com/documize/community/domain"
"github.com/documize/community/domain/permission"
"github.com/documize/community/model/attachment"
"github.com/documize/community/model/link"
"github.com/documize/community/model/page"
)
// Handler contains the runtime information such as logging and database.
type Handler struct {
Runtime *env.Runtime
Store *domain.Store
}
// GetLinkCandidates returns references to documents/sections/attachments.
func (h *Handler) GetLinkCandidates(w http.ResponseWriter, r *http.Request) {
method := "link.Candidates"
ctx := domain.GetRequestContext(r)
folderID := request.Param(r, "folderID")
if len(folderID) == 0 {
response.WriteMissingDataError(w, method, "folderID")
return
}
documentID := request.Param(r, "documentID")
if len(documentID) == 0 {
response.WriteMissingDataError(w, method, "documentID")
return
}
pageID := request.Param(r, "pageID")
if len(pageID) == 0 {
response.WriteMissingDataError(w, method, "pageID")
return
}
// permission check
if !permission.CanViewDocument(ctx, *h.Store, documentID) {
response.WriteForbiddenError(w)
return
}
// We can link to a section within the same document so
// let's get all pages for the document and remove "us".
pages, err := h.Store.Page.GetPagesWithoutContent(ctx, documentID)
if len(pages) == 0 {
pages = []page.Page{}
}
if err != nil && err != sql.ErrNoRows {
response.WriteServerError(w, method, err)
h.Runtime.Log.Error(method, err)
return
}
pc := []link.Candidate{}
for _, p := range pages {
if p.RefID != pageID {
c := link.Candidate{
RefID: uniqueid.Generate(),
FolderID: folderID,
DocumentID: documentID,
TargetID: p.RefID,
LinkType: p.PageType,
Title: p.Title,
}
pc = append(pc, c)
}
}
// We can link to attachment within the same document so
// let's get all attachments for the document.
files, err := h.Store.Attachment.GetAttachments(ctx, documentID)
if len(files) == 0 {
files = []attachment.Attachment{}
}
if err != nil && err != sql.ErrNoRows {
response.WriteServerError(w, method, err)
h.Runtime.Log.Error(method, err)
return
}
fc := []link.Candidate{}
for _, f := range files {
c := link.Candidate{
RefID: uniqueid.Generate(),
FolderID: folderID,
DocumentID: documentID,
TargetID: f.RefID,
LinkType: "file",
Title: f.Filename,
Context: f.Extension,
}
fc = append(fc, c)
}
var payload struct {
Pages []link.Candidate `json:"pages"`
Attachments []link.Candidate `json:"attachments"`
}
payload.Pages = pc
payload.Attachments = fc
response.WriteJSON(w, payload)
}
// SearchLinkCandidates endpoint takes a list of keywords and returns a list of document references matching those keywords.
func (h *Handler) SearchLinkCandidates(w http.ResponseWriter, r *http.Request) {
method := "link.SearchLinkCandidates"
ctx := domain.GetRequestContext(r)
keywords := request.Query(r, "keywords")
decoded, err := url.QueryUnescape(keywords)
if err != nil {
h.Runtime.Log.Error(method, err)
}
docs, pages, attachments, err := h.Store.Link.SearchCandidates(ctx, decoded)
if err != nil {
response.WriteServerError(w, method, err)
h.Runtime.Log.Error(method, err)
return
}
var payload struct {
Documents []link.Candidate `json:"documents"`
Pages []link.Candidate `json:"pages"`
Attachments []link.Candidate `json:"attachments"`
}
payload.Documents = docs
payload.Pages = pages
payload.Attachments = attachments
response.WriteJSON(w, payload)
}